PDF malware analysis — malicious · 310c75441c11d17f

MALICIOUS

PDF

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

MD5: 58d12ba3984777810f45a72f8cecacac SHA-1: ca8d91f404115824c997829a2b1c4b42b09925e9 SHA-256: 310c75441c11d17fab1727c358b593b20f935dbf9b6a0482a8b1c1627a5debfe

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 it contains an exploit. The presence of XFA forms and AcroForm buttons with action triggers further suggests malicious intent. The document body contains obfuscated text, typical of exploit-laden PDFs, and a suspicious embedded stream artifact was extracted.

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` `36a17d2fb7f037087a51dbcd9328e938ab61ccf0af79c0a803932528416bf1d3`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x8ED	1432 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 1 long base64-like blob(s).

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