Malicious RTF / .DOC — malware analysis report

Static analysis result for SHA-256 d8548efc442f16ef…

MALICIOUS

RTF / .DOC

813.1 KB
MD5: 61a39a6aa6030c0991f5196d46f166a1 SHA-1: 193966201a7b900a0e8b73f9498dfb77eabbe93e SHA-256: d8548efc442f16ef983ed49314e80d9262f386960ebb885bab1df100642b76a3
100 Risk Score

Malware Insights

MITRE ATT&CK
T1204 Malicious Link T1566.001 Spearphishing Attachment T1059.005 Visual Basic

The RTF document contains embedded OLE object data and triggers an \objupdate event, indicating an attempt to activate embedded content. The document body explicitly instructs the user to 'click Enable editing from the yellow bar above,' a common lure to bypass macro security settings. This suggests the file is designed to trick the user into enabling malicious content, likely to download and execute a secondary payload.

Heuristics 4

  • \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
  • Embedded OLE object medium RTF_OBJEMB
    RTF contains \objemb — embedded OLE object
  • 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_off00020dd9.bin
66943ddb8d116edca40bfccfd71605976c1b27127dc97195e73929ffe26122ac
rtf-objdata-decoded RTF \objdata at offset 0x20DD9 3758 bytes