PDF malware analysis — malicious · 7be43c511c46ae3b

MALICIOUS

PDF

2.3 KB

MD5: d0bc9ab576f7110872fd50a34b7e46cf SHA-1: e2b9e37b26990d581ec09fd4e4ec4f05b773fda2 SHA-256: 7be43c511c46ae3bb2182f06fdcacf3d52c42117905aa41417e5d3f7b57e397d

238 Risk Score

Malware Insights

MITRE ATT&CK

T1204.002 Malicious File

The PDF file contains embedded JavaScript that utilizes known exploits (CVE-2009-0927 and CVE-2007-5659) via `Collab.getIcon` and `Collab.collectEmailInfo` functions. The `eval()` call within the JavaScript suggests obfuscation and dynamic code execution, a common technique for downloading and executing further malicious content. The ClamAV heuristic also flags it as obfuscated malware.

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` `75557703bf26834464b723b5b5c7e526948f114c89d723bea57d3d2585279056`	pdf-javascript-stream	PDF /JS object 4 at offset 0x249	6787 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 1 eval/decoder/string-building token(s).

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