RTF / .DOC malware analysis — malicious · ccdc0e91f2582113

MALICIOUS

RTF / .DOC

227.5 KB

MD5: 5277ba40429e47d279a8b5deb3e76cb3 SHA-1: 5a78b19ec16a416a545c664a793096a52537d972 SHA-256: ccdc0e91f25821138cc141eb5b3f057c297fb1202e7dc086cf8bd75ad05c1cf4

180 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1204.002 Malicious File T1059.005 Visual Basic

The RTF document contains multiple OLE objects, including automatically linked and updated objects, indicating an attempt to execute embedded content. The presence of a 'Macro/content-enable lure' heuristic confirms the document likely instructs the user to enable content, a common social engineering tactic. No scripts were extracted, and the OLE objects could not be further analyzed for specific payloads.

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.
Automatically linked OLE object high RTF_OBJAUTLINK

RTF contains \objautlink — an automatically linked OLE object surface that can be updated or activated when Word opens the document.
\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

Extracted artifacts 3

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`objdata_00_off00000bac.bin` `cf81d3ba4ea0dc1a919c9581a3f3561a5bc7a400205a0ca323d1dd8c716710c9`	rtf-objdata-decoded	RTF \objdata at offset 0xBAC	19472 bytes
`objdata_01_off0000aa83.bin` `18cff8ef194415d33763880bf64011d23305e4b9143b76244b89e1c53b70a0d5`	rtf-objdata-decoded	RTF \objdata at offset 0xAA83	2632 bytes
`objdata_02_off0000c026.bin` `44deae4627fee3c44f54d5bd10477ec2e17f4c08135f08e2417832e36d10d037`	rtf-objdata-decoded	RTF \objdata at offset 0xC026	12297 bytes

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