Machete uses targeted spearphishing, malicious files, and custom malware to collect data from government and military victims, with heavy reliance on credential theft and discovery. Monitor for document-triggered execution, browser and file harvesting, and covert outbound traffic from hosts used by the targeted users or administrators.
How Machete’s Tactics Fit the Campaign Pattern
Machete is a targeted intrusion set, so its tactics are usually chosen to get a small number of high-value victims to open the door rather than to spray indiscriminately. The campaign pattern is consistent with spearphishing and malicious file delivery, then follow-on execution on the user’s workstation or administrator system. That matters because the initial lure is only the first step in a longer sequence built for access, collection, and concealment.
Its activity is typically opportunistic around the victim’s own workflows, especially email, document handling, browser use, and local file access. The direct answer already points to government and military targets, which is the key operational clue: Machete’s methods are designed to blend into normal user activity long enough to harvest useful material and establish a covert outbound channel.
For that reason, the right mental model is not “one exploit, one result.” It is a chained intrusion path in which the lure, execution, discovery, credential theft, and exfiltration phases reinforce one another. A campaign like this is most dangerous when the user who opens the file also has access to the mail, browser, document, or administrative data the operators want next.
What Machete Looks For After Initial Access
After the first malicious document or payload runs, Machete’s next steps center on discovery and collection. The goal is to identify what the compromised host can reveal about the target environment, then steal the material most likely to help the operators extend access or extract sensitive information. Browser artifacts, local files, and credentials are especially valuable because they can expose stored sessions, internal documents, and operational context.
This is why credential theft is not a side note in this intrusion set. If the malware can recover browser data, cached credentials, or administrator material, it can turn a single-user compromise into broader access with much less noise. In practice, discovery activity becomes the bridge between the phishing entry point and the later exfiltration stage.
The browser and file harvesting mentioned in the direct answer also indicates a strong emphasis on user-generated and user-accessible content rather than purely technical exploitation. That usually means defenders should look for unusual access to profile directories, document repositories, email stores, and similar local sources immediately after document-triggered execution.
How the Malware Usually Leaves the Network
Machete relies on covert outbound traffic from systems used by the targeted users or administrators, which means exfiltration is likely to be low-volume, disguised, or blended into ordinary network activity. The practical concern is not just data leaving the network, but data leaving in a way that avoids easy detection by simple volume thresholds or broad perimeter filtering.
That makes outbound monitoring especially important on endpoints associated with the intended victim population. If a host that normally handles documents or administration suddenly begins making unusual external connections after a suspicious file opens, that sequence is more telling than any single event in isolation. The same is true when discovery activity is followed by small, persistent connections to unfamiliar infrastructure.
MITRE ATT&CK Enterprise Matrix is useful here because the campaign maps cleanly to a chain of credential access, discovery, execution, and exfiltration behaviours that defenders can hunt as a sequence rather than as isolated alerts. For a broader view of the lure stage, Top 10 Phishing Techniques helps frame how spearphishing delivery and malicious attachments are commonly used to start the intrusion.
Risk and Threat Considerations
Machete is risky because it pairs a trusted delivery path, email or document handling, with post-execution discovery and credential theft. That combination can give attackers both content and access, which increases the chance that one compromised user account or workstation becomes a springboard into more sensitive systems.
Failure mechanism: A targeted user opens the lure, the malicious document or payload executes, and the malware harvests local data and credentials before sending information out through low-signature outbound traffic.
Impact: The intrusion can expose documents, browser data, and authentication material, while also enabling follow-on access that is harder to distinguish from normal user activity.
Standards & Framework Alignment
This section maps relevant standards and security frameworks to the operational risks and controls described in this guidance.
MITRE ATT&CK provides the primary governance reference for this topic.
| Framework | Control / Reference | Relevance |
|---|---|---|
| MITRE ATT&CK | T1566 — Phishing | Machete begins with spearphishing delivery of malicious files. |
| T1003 — OS Credential Dumping | The campaign relies on credential theft to expand access. | |
| T1083 — File and Directory Discovery | Machete collects local file and browser data after execution. | |
| Recommendation — Map the lure to phishing techniques and hunt for attachment-led initial access. Hunt for credential access activity and rotate exposed secrets quickly. Monitor endpoint discovery against user profile and document paths. | ||
Practitioner Guidance
What to verify: Confirm whether suspicious document opens are followed by process launches, browser profile access, and unexpected file reads on the same host. That sequence is more important than any single indicator because it ties execution to collection and exfiltration.
What to prioritise: Focus first on systems used by administrators or staff with access to sensitive mailboxes, document stores, or internal portals. Those hosts have the highest chance of turning a phishing foothold into meaningful collection or privilege reuse.
Decision rule: If the host can access credentials, documents, or admin resources, treat the event as a potential compromise of both data and access, and move immediately to containment and credential review rather than waiting for proof of exfiltration.
Practitioner takeaway: For this intrusion set, the key judgment is to treat phishing, discovery, credential theft, and outbound communication as one attack chain, not separate incidents.
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Reviewed and updated by the NHIMG editorial team on October 18, 2026.
NHI Mgmt Group — the #1 independent authority on Non-Human Identity, IAM, and Agentic AI security. nhimg.org