RTF / .DOC malware analysis — malicious · f955c5a1d7cac999

MALICIOUS

RTF / .DOC

340.9 KB First seen: 2021-09-17

MD5: 0d61deca4ba59c68ca185969e35ded32 SHA-1: 243e8a8dc5d85906d2964e81ad2f1d1b6fadd061 SHA-256: f955c5a1d7cac9999cb1af1057923e8a99291699966f91a763db267a4771f5f7

180 Risk Score

Malware Insights

MITRE ATT&CK

T1204 User Execution T1204.002 Malicious File T1566 Phishing T1566.001 Spearphishing Attachment T1059 Command and Scripting Interpreter T1059.005 Visual Basic

The RTF document contains multiple OLE objects, including automatically linked and updated objects, which are often used to embed malicious content. The presence of a 'Macro/content-enable lure' heuristic indicates the document actively tries to trick the user into enabling macros or content. This suggests the primary goal is to execute embedded code, likely to download and run a second-stage payload. No scripts were extracted, and no document body was available for analysis.

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` `6b97c56c93f9e55b26a98ca8015dd4e7a982518e47abc29e0bb3224637042e79`	rtf-objdata-decoded	RTF \objdata at offset 0x965	75565 bytes
`objdata_01_off00026ffc.bin` `18cff8ef194415d33763880bf64011d23305e4b9143b76244b89e1c53b70a0d5`	rtf-objdata-decoded	RTF \objdata at offset 0x26FFC	2632 bytes
`objdata_02_off0002859f.bin` `44deae4627fee3c44f54d5bd10477ec2e17f4c08135f08e2417832e36d10d037`	rtf-objdata-decoded	RTF \objdata at offset 0x2859F	12297 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.