PDF malware analysis — malicious · 80d78fec2a9a62ef

MALICIOUS

PDF

7.9 KB Created: 2012-04-27 17:25:24

MD5: 0cf49497a7094cd37a3c64f41446f971 SHA-1: c6e54230aea02c7624bbabc5e9151c8bc26052c0 SHA-256: 80d78fec2a9a62ef4171c130310bf608a7ae6a938ceb8c96e652b41333e12cbf

128 Risk Score

Malware Insights

MITRE ATT&CK

T1204 Malicious File T1204.002 Malicious File: User Execution: Malicious File T1059 Command and Scripting Interpreter T1059.001 Command and Scripting Interpreter: PowerShell

The critical ClamAV detection and high ML classifier score indicate malicious intent. The PDF contains an embedded script payload, suggesting it's designed to exploit a vulnerability and download a secondary stage. The embedded file artifact further supports this, likely containing the dropped payload. The document body text appears to be largely irrelevant filler, not indicative of a specific lure.

Machine Learning

Nyx PDF Classifier malicious score 1.0000

Heuristics 5

ClamAV: Pdf.Exploit.Dropped-156969-1 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Exploit.Dropped-156969-1
Embedded script payload in PDF stream medium PDF_EMBEDDED_SCRIPT_PAYLOAD

PDF stream bytes contain an HTML/XFA <script> tag without accompanying Windows shell-execution primitives — common in accessible XFA forms but worth surfacing for analyst review.
Embedded file low PDF_EMBEDDED

PDF embeds a file attachment — could carry an executable or another weaponised document as a nested payload
XFA form low PDF_XFA

PDF uses XML Forms Architecture — can contain script logic
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
`embedded_file_obj0010.bin` `5dcbbb8ce9d88ddc60fe9c2b01b3b1f55273c10d91efdfc792811111ffe0bd17`	pdf-embedded-file	PDF EmbeddedFile object 10 at offset 0xCB8	7237 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 4 long base64-like blob(s).

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