RTF malware analysis — malicious · 95850a33b339e5b1

MALICIOUS

RTF

3.9 KB First seen: 2020-09-07

MD5: 91f20e161d0c1e7a829838c370c35f11 SHA-1: 438700fd4580f3a7a3d5cd8c0e389b50b997f5d4 SHA-256: 95850a33b339e5b109912585a80a9ff16bb057b52d1dfa13011236985c93f6ed

80 Risk Score

Malware Insights

MITRE ATT&CK

T1203 Exploitation for Client Execution

The RTF file contains OLE object data and a ".objupdate" directive, which are strong indicators of an embedded OLE object intended for execution. The extracted artifact 'objdata_00_off000003e6.bin' is flagged as a potential shellcode region. This suggests the file is designed to exploit vulnerabilities or deliver a malicious payload upon opening.

Heuristics 3

\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 1 \objdata section(s) — embedded OLE objects
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 1

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`objdata_00_off000003e6.bin`	rtf-objdata-decoded	RTF \objdata at offset 0x3E6	1485 bytes
SHA-256: `49bae61e7d208f2d935519e6a21c703d8fefce9832152624ef52af71b6fd228d`
Detection ClamAV: No threats found Obfuscation or payload: likely Static shellcode analysis found candidate code region(s). Indicators: SC_GETPC_CALL

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