RTF / .DOC malware analysis — malicious · 4cf44a3c3f792492

MALICIOUS

RTF / .DOC

227.2 KB

MD5: e0190d21f8da20815c09bafe6f5b32fb SHA-1: d1fb5d6efe696d063386e5c166f6df0d8b16b0d5 SHA-256: 4cf44a3c3f7924920b6e79a24645c33a7c307224cfe3c7cfb383c2eff79b886c

180 Risk Score

Malware Insights

MITRE ATT&CK

T1204 Malicious Link T1204.002 Malicious Link: Malicious File T1566 Phishing T1566.001 Phishing: Spearphishing Attachment

The RTF document contains multiple OLE objects, including automatically linked and updated objects, which are designed to activate embedded content. The 'SE_ENABLE_LURE' heuristic indicates the document instructs the user to enable macros or editing, a common tactic for malware droppers. This suggests the file is intended to trick the user into enabling the execution of a secondary 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.
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_off00000965.bin` `73631746f932fac66aa3c748268499b3e84a04b49de29ada59d2f6c92130e06b`	rtf-objdata-decoded	RTF \objdata at offset 0x965	19629 bytes
`objdata_01_off0000a982.bin` `18cff8ef194415d33763880bf64011d23305e4b9143b76244b89e1c53b70a0d5`	rtf-objdata-decoded	RTF \objdata at offset 0xA982	2632 bytes
`objdata_02_off0000bf25.bin` `44deae4627fee3c44f54d5bd10477ec2e17f4c08135f08e2417832e36d10d037`	rtf-objdata-decoded	RTF \objdata at offset 0xBF25	12297 bytes

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