PDF malware analysis — malicious · ed61863ee2ac850a

MALICIOUS

PDF

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

MD5: 87338ec8ed328ea6727d0e5232f6819a SHA-1: f435f90bfa971ef36bafef06e14ccc1e65ca10e0 SHA-256: ed61863ee2ac850ae32e7f1da9e9cf286be5c6c517b74004e3ae99f623dddca6

78 Risk Score

Malware Insights

MITRE ATT&CK

T1204.002 Malicious File T1566.002 Spearphishing Attachment

The critical ClamAV heuristic firing indicates this PDF is known to exploit vulnerabilities, likely leading to arbitrary code execution. The presence of XFA forms and AcroForm buttons further suggests an attempt to leverage PDF features for malicious purposes. The extracted artifact 'stream_001_off000008ed.bin' is a suspicious component that warrants further investigation.

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` `0c9bf5baf9c2e975175ee88c277be5f0795dd9e31e41516a9902ec8987f296e6`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x8ED	1443 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 1 long base64-like blob(s).

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