Malicious RTF / .DOC — malware analysis report

Static analysis result for SHA-256 d1c005ed8f6d9c32…

MALICIOUS

RTF / .DOC

14.4 KB First seen: 2022-08-23
MD5: 85ad756764980ff401441fd397661149 SHA-1: fd01c7f27e36701571c68ea7ef2ef2c35e0c911a SHA-256: d1c005ed8f6d9c32b2ff9d58677c45ffd8efcdb933e4a6db2c78ea3b088ccbb4
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 RTF document contains OLE object data and an \objupdate directive, indicating it's designed to activate embedded objects. The SE_ENABLE_LURE heuristic confirms the document instructs the user to enable editing, a common tactic for malware droppers. The presence of OLE objects suggests the potential for embedded malicious code or links to external resources.

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 2 \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_off00000522.bin
a94ed26bed15ea4152ae781e8d0ed508d7971a87faae911a3b41e5ad6dafcb7d
rtf-objdata-decoded RTF \objdata at offset 0x522 4311 bytes