PDF malware analysis — malicious · 1cccf1dfad4bfc5e

MALICIOUS

PDF

32.1 KB

MD5: f96033ede9aabcade49004c0b9129205 SHA-1: ecc9871fdb8521ba46cae9fefcb6b9c3f344222f SHA-256: 1cccf1dfad4bfc5e81543a59c5cc72afc1630275feefc7157da6c6a13118279f

256 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1204.002 Malicious File

This PDF file contains embedded JavaScript that utilizes an eval() call, a common technique for obfuscating malicious code. The JavaScript stream is likely responsible for loading and executing the embedded Flash object (PGGBFVWL.swf). ClamAV detection as 'Pdf.Exploit.Agent-35955' and ML classification further indicate malicious intent, consistent with exploiting PDF vulnerabilities to deliver further stages of an attack.

Machine Learning

Nyx PDF Classifier malicious score 0.9956

Heuristics 8

ClamAV: Pdf.Exploit.Agent-35955 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Exploit.Agent-35955
ClamAV detection on extracted artifact critical EXTRACTED_FILE_CLAMAV

ClamAV flagged at least one file extracted from inside this sample. Even when the wrapping document carries no AV detection of its own, a hit on the carved artifact is a strong indicator the sample is a delivery vehicle.
RichMedia (Flash) high PDF_RICHMEDIA

PDF contains /RichMedia (Adobe Flash) which is a historic exploit vector
eval() call high PDF_EVAL

eval() found — commonly used for obfuscated exploit execution (matched inside decoded stream)
JavaScript action low PDF_JAVASCRIPT

PDF contains a /JavaScript action. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
Embedded JS stream low PDF_JS

PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
Embedded file low PDF_EMBEDDED

PDF embeds a file attachment — could carry an executable or another weaponised document as a nested payload
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 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`PGGBFVWL.swf` `c2b666a3ef4c191b77b78c037656e50477b8ba3d35fd61ae843a3a1f4d41c5c1`	pdf-embedded-file	PDF EmbeddedFile object 16 at offset 0x1641	26774 bytes
Detection ClamAV: Pdf.Exploit.Agent-35955 Obfuscation or payload: likely Carved artifact entropy is 7.99, consistent with packed or encrypted content.
`javascript_obj0006_000.js` `8643efd79d5e65d24cdcaba9537d2e0bbfdb2774365da84980d37dd49162e0e2`	pdf-javascript-stream	PDF /JS object 6 at offset 0x136	3984 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 1 eval/decoder/string-building token(s).

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