MALICIOUS
262
Risk Score
Malware Insights
MITRE ATT&CK
T1559.001 Component Object Model Hijacking
T1204.002 Malicious File
The RTF file contains an embedded OLE object, identified as a package object. Static analysis reveals a PE header within this object's data, indicating it is likely an executable. ClamAV signatures confirm this, detecting it as Win.Trojan.Buzus-7479. The primary attack pattern involves leveraging OLE object embedding to deliver a malicious payload.
Heuristics 7
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PE header (with DOS stub) in hex data critical RTF_MZ_HEXHex-encoded PE (MZ + DOS stub) found inside RTF — likely an embedded executable payload
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ClamAV: Win.Trojan.Buzus-7479 critical CLAMAV_DETECTIONClamAV detected this file as malware: Win.Trojan.Buzus-7479
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ClamAV detection on extracted artifact critical EXTRACTED_FILE_CLAMAVClamAV flagged at least one file extracted from inside this sample. Even when the wrapping document carries no AV detection of its own, a hit on the carved artifact is a strong indicator the sample is a delivery vehicle.
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Package object class high RTF_OBJCLASS_PACKAGEOLE Package object — can wrap arbitrary files
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OLE object data medium RTF_OBJDATARTF contains 1 \objdata section(s) — embedded OLE objects
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Embedded OLE object medium RTF_OBJEMBRTF contains \objemb — embedded OLE object
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Suspicious extracted artifact info EXTRACTED_FILE_STATIC_TRIAGEOne or more files extracted from inside this sample matched static suspicious-content checks such as script obfuscation, encoded payload blobs, packed data, or execution/download terms.
Extracted artifacts 1
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
objdata_00_off000000d1.bin23e311290e3a0fe7e4beb258aeea55fc2c9c2d269d277e71b569854d2bc6ccbc |
rtf-objdata-decoded | RTF \objdata at offset 0xD1 | 33039 bytes |
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Detection
ClamAV:
Win.Trojan.Buzus-7479
Obfuscation or payload:
likely
Carved artifact entropy is 7.47, consistent with packed or encrypted content.
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