Malicious RTF / .DOC — malware analysis report

Static analysis result for SHA-256 ba55c016bad1c037…

MALICIOUS

RTF / .DOC

457.5 KB First seen: 2024-05-21
MD5: 4fe28705f1093f91c5ece366ae5eba65 SHA-1: efd0c0c0dc5c5d4e99d30014b46eb155fbb10c48 SHA-256: ba55c016bad1c0370ecf02444d0ed1637657b99c557fde23e49325a40e7a7b7b
80 Risk Score

Malware Insights

MITRE ATT&CK
T1204 Malicious Link T1204.002 Malicious Link: Malicious File T1566 Phishing T1566.001 Phishing: Spearphishing Attachment T1059 Command and Scripting Interpreter T1059.005 Command and Scripting Interpreter: Visual Basic

The RTF document contains OLE object data and an \objupdate directive, indicating it is designed to activate embedded objects. The document body explicitly instructs the user to 'click Enable editing from the yellow bar above,' a common lure to bypass security settings and enable malicious content. This suggests the file is a dropper intended to download and execute a second-stage payload.

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_off00016c6d.bin
df01d12c401c7beae3ac4baadcedf6ab36c1ea5c00b76826fa450a2b2eccf904
rtf-objdata-decoded RTF \objdata at offset 0x16C6D 1877 bytes