Multios.Exploit.Matryoshka-5742579-0 — RTF malware analysis

Static analysis result for SHA-256 ffd5bd7548ab35c9…

MALICIOUS

RTF

51.9 KB Created: 2016-12-23 12:27:00 First seen: 2020-12-25
MD5: 9fe3a0fb3304d749aeed2c3e2e5787eb SHA-1: 9001f4cfe62367a282efc08b072a13a5e2e403db SHA-256: ffd5bd7548ab35c97841c31cf83ad2ea5ec02c741560317fc9602a49ce36a763
82 Risk Score

Malware Insights

Multios.Exploit.Matryoshka-5742579-0 · confidence 90%

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The file is identified as malicious by ClamAV with the signature Multios.Exploit.Matryoshka-5742579-0. Static analysis revealed RTF_OBJDATA, indicating the presence of embedded OLE objects which are often used to deliver exploits. The document body itself appears to be benign NATO-related text, but the embedded object is the primary indicator of malicious intent.

Heuristics 3

  • ClamAV: Multios.Exploit.Matryoshka-5742579-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Multios.Exploit.Matryoshka-5742579-0
  • OLE object data medium RTF_OBJDATA
    RTF contains 1 \objdata section(s) — embedded OLE objects
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL http://schemas.microsoft.com/office/word/2003/wordml In RTF body
    • http://www.adobe.com/2006/flex/mx/internalIn RTF body
    • http://adobe.com/AS3/2006/builtinIn RTF body

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
objdata_00_off00002bf0.bin rtf-objdata-decoded RTF \objdata at offset 0x2BF0 6902 bytes
SHA-256: 486c099fc466758d4db1aa522ff1437577147d33d8095e043f56e25be750c623

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