PDF malware analysis — malicious · 2ef85ec927200ca0

MALICIOUS

PDF

24.7 KB Created: 2010-02-09 11:19:09 +01:00 Authoring application: Acrobat PDFMaker 8.1 für Excel (via Acrobat Distiller 8.1.0 (Windows))

MD5: a111bcfb6a44b7140711825a32fcbceb SHA-1: e8f6ee929334c2421b25332ccca475195b8463e2 SHA-256: 2ef85ec927200ca0244c68eec37779cf8a0536dc03ef7c3fab0aba138fba5dcd

118 Risk Score

Malware Insights

The PDF file contains embedded JavaScript and triggers a critical heuristic for CVE-2007-5659 (Collab.collectEmailInfo). This indicates the document is designed to exploit this vulnerability. The presence of JavaScript and the specific exploit suggest a malicious intent, likely to download and execute a secondary payload or compromise the user's system.

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 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`javascript_obj0018_000.js` `96c8790c27a7048ba4634c151f9d84b0101c4a95577f628ae3b6a6e13cfe869c`	pdf-javascript-stream	PDF /JS object 18 at offset 0x59D	1380 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 4 eval/decoder/string-building token(s).
`icc_00_off000027e0.icc` `00c36ad25cc79152e364edf8e9d58e9fd2807e6188c07a8de84826e22aab9a92`	pdf-icc-profile	PDF ICC profile at offset 0x27E0	3144 bytes

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