PDF malware analysis — malicious · a0b18e8d1b0a2a60

MALICIOUS

PDF

14.3 KB Created: 2009-11-15 19:41:70 Authoring application: PDF Library 4.3.9 (via PDF Library 3.9.7)

MD5: cb144ba5b3c5dfc6148cc97d2878d174 SHA-1: baf3ca11eab8027f7d65cad936eed4b84a5edc39 SHA-256: a0b18e8d1b0a2a602476770b7358a6ea6111acf0f1aab349fa508404e95a78df

136 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1204.002 Malicious File

The critical ClamAV heuristic firings indicate the file is recognized as Win.Trojan.Agent-36166. Additionally, low-severity heuristics identified embedded JavaScript within the PDF. This JavaScript is likely responsible for downloading and executing a secondary payload, a common technique for malware delivery. The presence of JavaScript and the ClamAV detection strongly suggest a malicious intent, likely to compromise the user's system.

Heuristics 4

ClamAV: Win.Trojan.Agent-36166 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Win.Trojan.Agent-36166
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.
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.

Extracted artifacts 1

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`javascript_obj0007_000.js` `494b9ca80f3907f7d23e04ecd83f5cdaaed6e4948e55288e970ca917e9b4f1c2`	pdf-javascript-stream	PDF /JS object 7 at offset 0x1A5	74755 bytes
Detection ClamAV: Win.Trojan.Agent-36166 Obfuscation or payload: unlikely

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