RTF / .DOC malware analysis — malicious · ce68ea2ba25826f3

MALICIOUS

RTF / .DOC

383.7 KB

MD5: c520c5655a6303df3c02f2a5bb856531 SHA-1: 3c486829055b4fb94ccb3adda8f6fb6460138190 SHA-256: ce68ea2ba25826f3fdfef3a86ec8ca08c10fe4013fb8108e6a82c870a7e9d255

140 Risk Score

Malware Insights

MITRE ATT&CK

T1559.001 Component Object Model T1204.002 Malicious File

The RTF document contains multiple OLE objects, with specific heuristics indicating the use of \objdata and \objupdate to force OLE activation. This suggests the document is designed to exploit vulnerabilities related to OLE object handling, likely to execute embedded code. No scripts were extracted, and the document body contained only formatting information, making it difficult to determine the exact payload or user-facing lure.

Heuristics 5

Composite Moniker in RTF OLE object high CVE related RTF_COMPOSITE_MONIKER_RELATED

RTF contains Composite Moniker CLSID in OLE object context, but no nearby scriptlet/SCT payload was confirmed. Treat as related moniker attack-surface evidence rather than proof of CVE-2017-8570 exploitation.
\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 3 \objdata section(s) — embedded OLE objects
Embedded OLE object medium RTF_OBJEMB

RTF contains \objemb — embedded OLE object
Suspicious extracted artifact medium EXTRACTED_FILE_STATIC_TRIAGE

One or more files extracted from inside this sample matched static suspicious-content checks such as script obfuscation, encoded payload blobs, packed data, or execution/download terms.

Extracted artifacts 3

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`objdata_00_off000007d1.bin` `a95ddedd826efb92baa0ef27f91fbafcab0afae9dc9bc32c6ca98fcaeafd3ddc`	rtf-objdata-decoded	RTF \objdata at offset 0x7D1	97527 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 1 shell/COM execution token(s).
`objdata_01_off000320d6.bin` `ad7bf1923f855fca5949d0c557a2a819b106cd84b204870bcc59064eb0c6e331`	rtf-objdata-decoded	RTF \objdata at offset 0x320D6	2632 bytes
`objdata_02_off00033679.bin` `44deae4627fee3c44f54d5bd10477ec2e17f4c08135f08e2417832e36d10d037`	rtf-objdata-decoded	RTF \objdata at offset 0x33679	12297 bytes

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