RTF malware analysis — malicious · f469b2f39c727a0b

MALICIOUS

RTF

1.00 MB Authoring application: Msftedit 5.41.15.1515

MD5: 5ed9906bb09d99327e63de265dba7b7a SHA-1: 0a139d7ff87bd60ed4c5d51c2d24ff645c9c45c6 SHA-256: f469b2f39c727a0b9063b058e7b3f83957032b47e621aa3d7ac72a0c0fe66e37

182 Risk Score

Malware Insights

MITRE ATT&CK

T1559.001 Component Object Model T1105 Ingress Tool Transfer

The RTF file contains a high volume of hex-encoded data within an OLE object, which is flagged as suspicious. This data decodes to a PE file, indicating the RTF is likely a dropper for a malicious executable. The presence of RTF_MZ_HEX and RTF_EXCESSIVE_HEX heuristics strongly suggests the embedded object is a payload.

Heuristics 6

PE header (with DOS stub) in hex data critical RTF_MZ_HEX

Hex-encoded PE (MZ + DOS stub) found inside RTF — likely an embedded executable payload
Package object class high RTF_OBJCLASS_PACKAGE

OLE Package object — can wrap arbitrary files
Large hex data blocks in OLE object high RTF_EXCESSIVE_HEX

RTF contains ~1050KB of hex-encoded data inside \objdata sections — may hide a payload
OLE object data medium RTF_OBJDATA

RTF contains 1 \objdata section(s) — embedded OLE objects
Embedded OLE object medium RTF_OBJEMB

RTF contains \objemb — embedded OLE object
Suspicious extracted artifact info 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_off000000d2.bin` `1d29fb16ddbe863e046a92519176fabd32450b0ac715dca6ea9cedc63b88ec91`	rtf-objdata-decoded	RTF \objdata at offset 0xD2	474641 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact entropy is 7.85, consistent with packed or encrypted content.

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