PDF malware analysis — malicious · d8b0ba4d7a93259d

MALICIOUS

PDF

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

MD5: 3de0c0726bcdaf14378c71f5ef39f7b9 SHA-1: baf1381513d4ca35e9c7545e48ef8b2e00e7d28c SHA-256: d8b0ba4d7a93259de52dd53cbc3cb582118a2750a3a9f5fa04b13ecfe9b6d5c8

78 Risk Score

Malware Insights

MITRE ATT&CK

T1204 Malicious Link T1204.002 Malicious File

The file is a PDF document identified by ClamAV as Pdf.Exploit.Agent-36874, indicating a known exploit. The presence of XFA forms and AcroForm buttons with action triggers further suggests a malicious PDF designed to exploit viewer vulnerabilities. The extracted document body content is heavily obfuscated and does not provide direct clues to the user-facing lure, but the exploit signature is a strong indicator of malicious intent.

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` `bb1a6ea768e7f6a244303a6105482c7ce2a5e04edcbbfb91a9fe32061ab45024`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x8ED	1435 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 1 long base64-like blob(s).

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