PDF malware analysis — malicious · e25db998ddf7c68a

MALICIOUS

PDF

2.3 KB

MD5: c147a8c066fe8be1df71cedbc558013d SHA-1: ec4c75128c1fd2e17ee3b7969b2c2b2d67e32f1f SHA-256: e25db998ddf7c68a7180e2c6ede998461a527a9c7d01aa88e9d4972fd227f282

238 Risk Score

Malware Insights

MITRE ATT&CK

T1204.002 Malicious File: Malicious JavaScript T1059.001 Command and Scripting Interpreter: PowerShell T1059.003 Command and Scripting Interpreter: Windows Command Shell T1059.007 Command and Scripting Interpreter: JavaScript/TypeScript

This PDF file contains embedded JavaScript that utilizes eval() and exploits CVE-2009-0927 (Collab.getIcon) and CVE-2007-5659 (Collab.collectEmailInfo). These exploits are commonly used to download and execute arbitrary code. The presence of obfuscated JavaScript and ClamAV detection further supports its malicious nature. The primary intent appears to be the execution of a second-stage payload.

Heuristics 7

Collab.getIcon — CVE-2009-0927 critical CVE exact CVE_2009_0927

PDF JavaScript calls Collab.getIcon — CVE-2009-0927 is a stack buffer overflow in Adobe Reader triggered by Collab.getIcon() with a crafted argument. Allows arbitrary code execution. (matched in decompressed stream)
Collab.collectEmailInfo — CVE-2007-5659 critical CVE exact CVE_2007_5659

PDF JavaScript calls Collab.collectEmailInfo — CVE-2007-5659 is a buffer overflow in Adobe Reader triggered by a long argument or heap-sprayed message field passed to Collab.collectEmailInfo(). Part of a series of Acrobat JS API exploits. (matched in decompressed stream)
ClamAV: Heuristics.PDF.ObfuscatedNameObject critical CLAMAV_DETECTION

ClamAV detected this file as malware: Heuristics.PDF.ObfuscatedNameObject
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.
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
`javascript_obj0004_000.js` `00cbef5c4a9e7e1941f1745a02c9ceaf0573014d3e41ffcc2f1f514c7ba92bde`	pdf-javascript-stream	PDF /JS object 4 at offset 0x249	6751 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 1 eval/decoder/string-building token(s).

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