Malicious RTF / .DOC — malware analysis report

Static analysis result for SHA-256 7572fcd6253fe54c…

MALICIOUS

RTF / .DOC

8.1 KB First seen: 2022-10-10
MD5: 913c72575d932e4cb8236432856b704c SHA-1: f25b1a55162500159d39ee393fd0f0a0258b0a4a SHA-256: 7572fcd6253fe54cde96e22de25c131752e6eceddcac91b09953008f28d2203c
80 Risk Score

Malware Insights

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

The file is an RTF document containing an OLE object, which is a known technique for embedding malicious content. The heuristic SE_ENABLE_LURE indicates that the document body contains a lure to enable editing and macros, a common tactic for malware droppers. The presence of OLE object data and the explicit lure strongly suggest the document is designed to execute a payload upon user interaction.

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_off00000f15.bin
98949866ec8eccd58a22ca7d67d3f1800145aec26e10b589ecaeb954c4d58ebf
rtf-objdata-decoded RTF \objdata at offset 0xF15 1453 bytes