PDF malware analysis — malicious · e46544e3b4662589

MALICIOUS

PDF

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

MD5: 4001137ccd690d38fc3f8f2f631e4dab SHA-1: a59364c933f9c3878eaca2307b4603256d7e1b82 SHA-256: e46544e3b46625892f41327ee6a3fe1a6b702d5573527d6378cbd28a5dd7c2a4

78 Risk Score

Malware Insights

MITRE ATT&CK

T1204.002 Malicious File: User Execution T1559.001 Component Object Model Hijacking

The file is a PDF document identified by ClamAV as Pdf.Exploit.Agent-36874, indicating a known exploit. The presence of XFA forms and AcroForm buttons with action triggers further suggests malicious intent, likely to exploit a PDF viewer vulnerability. The embedded artifact 'stream_001_off000008ed.bin' is a suspicious extracted blob, common in exploit delivery.

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` `11996388461f5d9c18f825715a80c2859247845b14b81474999d66a72c6d23f5`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x8ED	1425 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 1 long base64-like blob(s).

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