PDF malware analysis — malicious · 4de58a8065d64255

MALICIOUS

PDF

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

MD5: 63c4d063d0e072176017763b8d22006a SHA-1: 8b469c834d240ccdb463deb56aa7bae5b8cbcf9d SHA-256: 4de58a8065d64255e983c19e3ad9aca448d1b516f721c357892af3132c5ea410

78 Risk Score

Malware Insights

MITRE ATT&CK

T1204 Malicious Link T1204.002 Malicious File

The PDF file was detected by ClamAV as Pdf.Exploit.Agent-36874, indicating it contains an exploit. The presence of an XFA form and an AcroForm button with an action trigger further suggests malicious intent. The file likely exploits a known PDF vulnerability to achieve code execution, potentially leading to the download or execution 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` `d49ef8f593148ed89aadd12f7d51c5702463b420ab3ca3c66223fb697a8c9ddc`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x8ED	1446 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 1 long base64-like blob(s).

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