RTF malware analysis — malicious · ddb24e0a38ba9194

MALICIOUS

RTF

639.7 KB Created: 2019-12-17 23:34:00 First seen: 2020-05-14

MD5: 7c986cfdf3fa28f560f2c63801424e1a SHA-1: d7f69f7bd7fc96d842fcac054e8768fd1ecaa88a SHA-256: ddb24e0a38ba9194fe299e351e54facb2cca9e6011db2f5242210284df91f900

202 Risk Score

Heuristics 7

ClamAV: Rtf.Dropper.Agent-7489072-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Rtf.Dropper.Agent-7489072-0
\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.
Package object class high RTF_OBJCLASS_PACKAGE

OLE Package object — can wrap arbitrary files
OLE object data medium RTF_OBJDATA

RTF contains 2 \objdata section(s) — embedded OLE objects
Embedded OLE object medium RTF_OBJEMB

RTF contains \objemb — embedded OLE object
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.
Embedded URL info EMBEDDED_URL

One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.

URL http://schemas.microsoft.com/office/word/2003/wordml In RTF body

Extracted artifacts 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`objdata_00_off0000d6ac.bin`	rtf-objdata-decoded	RTF \objdata at offset 0xD6AC	269555 bytes
SHA-256: `973d51860e99aa8e09683f4d3946e64487f3f271d53e5a3338ef70f11394f89e`
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact entropy is 7.79, consistent with packed or encrypted content.
`objdata_01_off0009c84f.bin`	rtf-objdata-decoded	RTF \objdata at offset 0x9C84F	6843 bytes
SHA-256: `62c91223dd5af8a41d83679bfd78dc812ed023d4b14d0ff10cdf2f847a4c288e`
Detection ClamAV: No threats found Obfuscation or payload: likely Static shellcode analysis found candidate code region(s). Indicators: SC_PEB_ACCESS

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