PDF malware analysis — malicious · 2beb41097ec2d787

MALICIOUS

PDF

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

MD5: 94c6503eb465bcc1f3f266b4ccf0d6e9 SHA-1: 8e429a8024a07009c36f4ead4b1af9ed66a8c944 SHA-256: 2beb41097ec2d7870c9cbb3962812f49afdc0a35583262020e9f084fb8c147e4

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 actions and streams within the PDF structure. The presence of JavaScript suggests an attempt to execute code, likely to download and run further malicious content, which aligns with the detected malware family.

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` `eaff6bf625025f099ee85a5a0f96180502d32b73bd8ebfd38f28605e4b968a5d`	pdf-javascript-stream	PDF /JS object 7 at offset 0x1A5	75965 bytes
Detection ClamAV: Win.Trojan.Agent-36166 Obfuscation or payload: unlikely

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