PDF malware analysis — malicious · 8d062d82eff37420

MALICIOUS

PDF

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

MD5: f0f3bbba5502a135c6ea15f0bb11cafe SHA-1: 8100847e5e6e21048feddb18e2ec7d551b2cdabb SHA-256: 8d062d82eff37420b536728f97dd40f00789f756c10d1cafa38d9afb4c01063b

108 Risk Score

Malware Insights

MITRE ATT&CK

T1204.002 Malicious File T1566.002 Spearphishing Attachment

The critical ClamAV detection and high ML classifier score strongly indicate malicious intent. The presence of XFA forms and AcroForm buttons are common techniques used in PDF exploits. The file is identified as Pdf.Exploit.Agent-36874, suggesting it's a known exploit leveraging PDF vulnerabilities to deliver a payload.

Machine Learning

Nyx PDF Classifier malicious score 0.9993

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` `6b4a0c1c203cf03e4f2213755d9eb65622faa78e30b16e4cdf138e58e17e1d56`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x8ED	1504 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 1 long base64-like blob(s).

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