PDF malware analysis — malicious · 223f0e1bc4ed3da4

MALICIOUS

PDF

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

MD5: 72d22e235f55b90dd2068b04f45d3fab SHA-1: 5bc9222ccb96b91ef1c05018c71dc68ee9d241c2 SHA-256: 223f0e1bc4ed3da4364f2217028dd1b7310a09aa3d0f9ce3db55136d36f7fd9d

78 Risk Score

Malware Insights

MITRE ATT&CK

T1204.002 Malicious File T1559.001 Component Object Model Hijacking

The file is a PDF document that contains an XFA form and an AcroForm button with an action trigger, indicating a potential exploit. ClamAV detection as 'Pdf.Exploit.Agent-36874' strongly suggests a known PDF exploit. The presence of a long encoded blob within an extracted stream further supports the likelihood of malicious code execution.

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` `8ee9f1b552d1d3af533712d507ddb4003369a22fef7022ba4a15e7f397818642`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x8ED	1418 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 1 long base64-like blob(s).

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