PDF malware analysis — malicious · cfe0538c51e57986

MALICIOUS

PDF

10.6 KB

MD5: 8a487dfe749641634a57789c46be0103 SHA-1: 5e0485ccba5d1f3c306238213a44b456d9a1f2cc SHA-256: cfe0538c51e5798632815874b7afc69b5b7d245c3de9b657351e4405ad2185f8

80 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1566.001 Spearphishing Attachment

The PDF file exhibits characteristics of malicious intent, including obfuscated content and an embedded file, as flagged by ClamAV's Heuristics.PDF.ObfuscatedNameObject rule. The presence of an embedded file suggests it may be used to deliver a secondary payload. The differential parsing failure further supports the suspicion of deliberate obfuscation.

Heuristics 5

ClamAV: Heuristics.PDF.ObfuscatedNameObject critical CLAMAV_DETECTION

ClamAV detected this file as malware: Heuristics.PDF.ObfuscatedNameObject
Embedded file low PDF_EMBEDDED

PDF embeds a file attachment — could carry an executable or another weaponised document as a nested payload
XFA form low PDF_XFA

PDF uses XML Forms Architecture — can contain script logic
PDF differential parser failed info PDF_DIFFERENTIAL_PARSE_FAILED

The cross-check parser (pdfminer.six) failed on this file: PDF differential parser failed: PSSyntaxError. Static heuristics still ran and any of their findings above are valid; only the differential cross-check signal is missing.
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
`embedded_file_obj0002.bin` `8217b611f2f61809890382d8659f8b2d1ae3f4d8d17c7730a0a7efbd19637a6d`	pdf-embedded-file	PDF EmbeddedFile object 2 at offset 0xF8	13408 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 1 long base64-like blob(s).

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