PDF malware analysis — malicious · 93d357213342d2c9

MALICIOUS

PDF

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

MD5: 76ed7df95694face25aeb541764f7b95 SHA-1: e634d0a775bf9f95b8779629f16364ee2b5a6754 SHA-256: 93d357213342d2c9154c9520e86d5b71dfb01674e03604908a5df0235964a19f

78 Risk Score

Malware Insights

MITRE ATT&CK

T1204 Malicious Link T1059 Command and Scripting Interpreter

The critical ClamAV heuristic 'Pdf.Exploit.Agent-36874' strongly indicates a known PDF exploit. The presence of an XFA form and an AcroForm button with an action trigger further supports the exploitation of PDF features for malicious purposes. The embedded artifact suggests a secondary payload, common in exploit-based attacks.

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` `cd856541eacd0f53c27ea78f9aa4d5996286fb50123e4e8e71f6faf993c2b205`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x8ED	1470 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 1 long base64-like blob(s).

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