PDF malware analysis — malicious · 2ad9c7959de34ce6

MALICIOUS

PDF

2.3 KB Created: 2008-10-14 19:19:30 +01:00

MD5: 9119221542bc106aa7446b5f8e131076 SHA-1: 04071d3c6cd3715229a82f237090b5725e185eae SHA-256: 2ad9c7959de34ce6da29afb43b5dcaf27a452fa4a6a3f8337367c7cbad988029

118 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1204.002 Malicious File

The PDF file contains embedded JavaScript that utilizes the Collab.collectEmailInfo function, which is a known vulnerability (CVE-2007-5659). This function is often abused to execute arbitrary code. The presence of JavaScript and the specific exploit indicate a malicious intent to compromise the user's system, likely through a downloader or exploit execution.

Heuristics 5

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)
unescape() call high PDF_UNESCAPE

unescape() found — often used to decode shellcode in PDF JS exploits (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` `645782b0264aaa8721e3dc2c327a1cff53312d4f8d716ad02f0ac558b7a4c49e`	pdf-javascript-stream	PDF /JS object 4 at offset 0x8A	3122 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 3 eval/decoder/string-building token(s).

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