PDF malware analysis — malicious · 9751dab217c55d8f

MALICIOUS

PDF

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

MD5: 4979f772b9c3ba33e7669355eaf31c2c SHA-1: 75c1e4b4d876224a9acc6d4f2fea987681a3bacf SHA-256: 9751dab217c55d8ffe296a595b030a91069ef4df06f563e9369adfa66c6cb742

78 Risk Score

Malware Insights

MITRE ATT&CK

T1204.002 Malicious File

The PDF file was detected by ClamAV as Pdf.Exploit.Agent-36874, indicating a known exploit. Static triage also flagged a suspicious long encoded blob within an extracted stream artifact. The presence of XFA forms and AcroForm buttons further suggests an attempt to embed and trigger malicious actions within the PDF structure.

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` `cf39292642be7df87c6531ab4d148ed72eea0662864e6dd2d5c6542f0d92b619`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x8ED	1393 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 1 long base64-like blob(s).

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