PDF malware analysis — malicious · dc4f0b009727ff82

MALICIOUS

PDF

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

MD5: 7a43dc1f0fa0167982bf2a89d2e607e8 SHA-1: 97eed6679d03322d6f5f9749f71a17630f536f71 SHA-256: dc4f0b009727ff82f286fb4bdfecd468ea44bac970a164e9c4131a293be25489

78 Risk Score

Malware Insights

MITRE ATT&CK

T1204 Malicious Link T1204.002 Malicious File

The critical ClamAV heuristic firing indicates this PDF is recognized as a known exploit, specifically 'Pdf.Exploit.Agent-36874'. The presence of an XFA form and an AcroForm button with an action trigger further suggests malicious intent, likely to trick the user into executing embedded code. The file's structure and the nature of the exploit 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` `347d8aa35a057c0f8996399c1d85b06763b059980a2dca0209595d5fba578013`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x8ED	1436 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 1 long base64-like blob(s).

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