PDF malware analysis — malicious · 3118d3c17845338b

MALICIOUS

PDF

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

MD5: 67350a27334aaf78c6f7f23056079ace SHA-1: cf36a585dc4e0abe5a65aa04944efee54fe52b41 SHA-256: 3118d3c17845338bcfedfb5fd7297c43a83342e6c3abee2b52d0c9b84294d333

78 Risk Score

Malware Insights

MITRE ATT&CK

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 malicious intent. The extracted file 'stream_001_off000008ed.bin' is a suspicious artifact likely containing the exploit code 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` `5bcd9c8b468c67c468fa847b26257c4387736ea0b828c94ea8a62e4f4dfd658b`	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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