PDF malware analysis — malicious · e59108402b651b7a

MALICIOUS

PDF

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

MD5: 64616e8af54b29f667e6114bff4fe170 SHA-1: fb0699139abfd04204c3f81e62354183a44018cd SHA-256: e59108402b651b7abd883cb62e3b33c1c0d26bcf4a901cd1acaf093c43978f7d

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 XFA forms and AcroForm buttons with action triggers further suggests an attempt to leverage PDF features for malicious purposes, likely to execute an embedded exploit. The extracted file 'stream_001_off000008ed.bin' is a suspicious artifact that warrants further investigation as a potential second-stage 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` `f7d7fb391b2a54debd91312838ca606eb05ee7bbc218eda1bdb179ef9205a5ab`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x8ED	1442 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 1 long base64-like blob(s).

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