PDF malware analysis — malicious · dc40b2f2c7314ad6

MALICIOUS

PDF

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

MD5: 7e9d6126a8764b76dc738e5b1d18de9e SHA-1: e2bd3281448c4c7c80aa26dc7f2fee522db89824 SHA-256: dc40b2f2c7314ad69ba22e0893d48002ffb738a2fd2cc88e24f4bce90eb2eb73

78 Risk Score

Malware Insights

MITRE ATT&CK

T1204 Malicious File T1204.002 Malicious File: User Execution

The file is a PDF document identified by ClamAV as Pdf.Exploit.Agent-36874. Static analysis detected an XFA form and an AcroForm button with an action trigger, indicating potential exploitability. A suspicious, long encoded blob was also extracted, suggesting the presence of a secondary 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` `a24c49ecc65f7496511aaeaeb31314b11a4370d4da90616d7f623c5fc64f2e3c`	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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