PDF malware analysis — malicious · f6caa32a6572786c

MALICIOUS

PDF

136.8 KB Created: 2011-09-08 05:03:17 Authoring application: FPDF 1.6

MD5: 7bc5107b11a05d279536a4344535fb48 SHA-1: 64fa5c093064c3706a8c38357a012b2d122980a4 SHA-256: f6caa32a6572786ccdddc4123fca65ffd2da0083de1d26536fba5444e4159b55

78 Risk Score

Malware Insights

MITRE ATT&CK

T1204.002 Malicious File T1055 Process Injection

The file is a PDF document that contains an XFA form and an AcroForm button with an action trigger, indicating it is designed to be interactive and potentially exploit vulnerabilities. ClamAV detection as 'Pdf.Exploit.Agent-36874' strongly suggests a known PDF exploit. The presence of a suspicious, long encoded blob within an embedded stream further supports the exploit vector.

Heuristics 4

ClamAV: Pdf.Exploit.Agent-36874 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Exploit.Agent-36874
XFA form low PDF_XFA

PDF uses XML Forms Architecture — can contain script logic
AcroForm button with action trigger low PDF_ACROFORM_BUTTON

PDF contains a /Btn form field together with a SubmitForm/URI/Launch/JS trigger — this is the building block of fake 'Download' or 'Open' button overlays used in PDF phishing lures
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
`stream_001_off000008ed.bin` `d677d1bb8b88060a8e8ef5f9158a06f2a4359beb9b3fe876b778183233d0b1cd`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x8ED	1476 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 1 long base64-like blob(s).

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