PDF malware analysis — malicious · fd944a74481b99ad

MALICIOUS

PDF

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

MD5: f6ca197660f87925378935f3402eaff4 SHA-1: cebcdfb0b6e4209bb217c33228648d633bcdef47 SHA-256: fd944a74481b99ad0d9136ae322b012a62f935c7567fbca53645bc5e01dc39bd

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 PDF contains an XFA form and an AcroForm button with an action trigger, common elements in exploit-laden PDFs. The embedded artifact suggests a potential payload delivery mechanism, though its exact function is not detailed in the provided evidence.

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` `4d370d9c4cbee3496bef235ef5a2da213c00c94426dd5d7873022c74356545b6`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x8ED	1462 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 1 long base64-like blob(s).

Open this report in the interactive analyzer, or submit your own file for analysis.