Malicious RTF / .DOC — malware analysis report

Static analysis result for SHA-256 15eecb300041e404…

MALICIOUS

RTF / .DOC

383.7 KB First seen: 2024-05-30
MD5: dcd4572d61b570550193e5757062bc7c SHA-1: 200efbc51ab8a9552e5ef9c2bc6531fd5b119775 SHA-256: 15eecb300041e4042e36a9480a18cc1f1f477e00d4f03351e5ddaa0db7d66c5c
80 Risk Score

Malware Insights

MITRE ATT&CK
T1204 Malicious Link T1204.002 Malicious Link: Malicious File T1566 Phishing T1566.001 Phishing: Spearphishing Attachment

The sample is an RTF document that contains OLE object data and an instruction to enable editing, which is a common lure for macro-based malware. The heuristic SE_ENABLE_LURE specifically indicates that the document instructs the user to enable macros or editing, a technique frequently used by malware droppers. The presence of RTF_OBJDATA and RTF_OBJUPDATE further suggests the embedding of malicious OLE objects designed to be activated.

Heuristics 3

  • \objupdate forces OLE activation high RTF_OBJUPDATE
    RTF contains \objupdate — forces automatic OLE object instantiation when the document is opened, bypassing user interaction. Almost exclusively seen in Equation Editor exploit documents.
  • OLE object data medium RTF_OBJDATA
    RTF contains 1 \objdata section(s) — embedded OLE objects
  • Macro/content-enable lure medium SE_ENABLE_LURE
    Document instructs the user to enable macros or editing — a common technique used by malware droppers to bypass Office macro security settings

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
objdata_00_off00016560.bin
df84ad280e6888f023ff84873cfb5e59cd2c9d52b04d77ddea66467b3bc4c53e
rtf-objdata-decoded RTF \objdata at offset 0x16560 1743 bytes