PDF malware analysis — malicious · fc203047c8a6f9b1

MALICIOUS

PDF

4.6 KB Created: 2008-04-28 12:17:40 +03:00

MD5: c2afef11dcce2ac095180e882e680628 SHA-1: ccad97c329ea6f35406fa8fc4216989ae0327807 SHA-256: fc203047c8a6f9b13fce0e4163de8100c23105225934dfedefb1f97314776584

126 Risk Score

Malware Insights

MITRE ATT&CK

T1204.002 Malicious File: Malicious File

The PDF file contains embedded JavaScript and triggers a critical heuristic for CVE-2007-5659 (Collab.collectEmailInfo). The embedded JavaScript stream, identified as 'javascript_obj0015_000.js', is likely responsible for exploiting this vulnerability. The exploit's purpose is to execute arbitrary code, which is a common precursor to downloading further malicious payloads or establishing a foothold on the victim's system.

Heuristics 6

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.
Embedded file low PDF_EMBEDDED

PDF embeds a file attachment — could carry an executable or another weaponised document as a nested payload
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_obj0015_000.js` `17b8422d4aabbb973cb9e3a221f76be48e4fb4f16c73c71a4078f5c5096e4edc`	pdf-javascript-stream	PDF /JS object 15 at offset 0xC26	2013 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 3 eval/decoder/string-building token(s).

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