PDF malware analysis — malicious · f884014b0baf2e82

MALICIOUS

PDF

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

MD5: 8848942ad925c5293dfeff69c31bc6d6 SHA-1: 8faea4ed3bb2821a99abc65ec2392199e13af43d SHA-256: f884014b0baf2e82823bfdcba4dbaa228c0e926215aca54e72edb32a87c98a36

78 Risk Score

Malware Insights

MITRE ATT&CK

T1204.002 Malicious File T1059.001 PowerShell

The critical ClamAV heuristic firing indicates this PDF is known to exploit vulnerabilities, specifically identified as Pdf.Exploit.Agent-36874. The presence of XFA forms and AcroForm buttons further suggests an attempt to leverage interactive elements for exploitation. While no specific script was extracted, the file's structure and the ClamAV signature point towards a malicious PDF designed to deliver a payload.

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` `ddcb7d964210006c85e955f14e1dcd2af11bdbd9eba5435143d1b5750d171c67`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x8ED	1439 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 1 long base64-like blob(s).

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