RTF / .DOC malware analysis — malicious · 28afe7923ff1fefa

MALICIOUS

RTF / .DOC

217.6 KB

MD5: 6d363778561b5d65e02b5d85ac8bb455 SHA-1: 18fb5a24d29bd3cd371f6f1aab72c4bd3cd28f59 SHA-256: 28afe7923ff1fefa3b52146e319bf89c2028865d826047df505905fb4eb758d8

160 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 embedded OLE objects and uses an objupdate directive to force activation, indicating an attempt to execute embedded content. The document body explicitly instructs the user to 'download the document and click Enable Editing', a social engineering lure to bypass macro security. No scripts were extracted, but the presence of embedded OLE objects and the lure suggest the document is designed to deliver a malicious payload.

Heuristics 6

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
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
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_off0000095b.bin` `d9625eec7efa7f93b590918837b66b20ceb937396d337cdf7e4efd300525c3b6`	rtf-objdata-decoded	RTF \objdata at offset 0x95B	15562 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 1 shell/COM execution token(s).
`objdata_01_off00008869.bin` `893d8db8585190a273d0c7c3dcff2eb58184b866a3687a9319ca72a8284876cb`	rtf-objdata-decoded	RTF \objdata at offset 0x8869	2632 bytes
`objdata_02_off00009e0c.bin` `44deae4627fee3c44f54d5bd10477ec2e17f4c08135f08e2417832e36d10d037`	rtf-objdata-decoded	RTF \objdata at offset 0x9E0C	12297 bytes

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