PDF malware analysis — malicious · 942c2a1709a14458

MALICIOUS

PDF

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

MD5: 6361cc4383e65b99a3af0183282df6e1 SHA-1: 27439fb51fbd7ce98121923a4ff68ca64c37bcf1 SHA-256: 942c2a1709a14458652b23d0e61b90a1262d29567155ca1bc1c996e59d0968c5

78 Risk Score

Malware Insights

MITRE ATT&CK

T1204.002 Malicious File T1566.002 Spearphishing Attachment

The file is a PDF document identified by ClamAV as Pdf.Exploit.Agent-36874, indicating it exploits a known PDF vulnerability. The presence of an XFA form and an AcroForm button with an action trigger further suggests malicious intent, likely to execute embedded code or redirect the user. The extracted binary artifact, stream_001_off000008ed.bin, is a suspicious component that likely contains the exploit or 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` `717564d3f569ea20db9161e9ba7528c8492b15a188b3163af907d09a99f3d212`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x8ED	1410 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 1 long base64-like blob(s).

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