PDF malware analysis — malicious · 9450e5123b8891aa

MALICIOUS

PDF

2.7 KB Created: 2008-31-20 53:85:00 Authoring application: Scribus 1.3.3.12 (via Scribus PDF Library 1.3.3.12)

MD5: 853a32bb06eeae2c4476a0f35bd16661 SHA-1: 44af654b796c5911f809684b80ec3bc6d3b1fd6b SHA-256: 9450e5123b8891aa1d70c8f0fd9dec90a0d66d0d1c4e086916e2d63e9024d030

278 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1204.001 Malicious Link T1204.002 Malicious File

This PDF file contains embedded JavaScript and is configured with an OpenAction to trigger execution upon opening. Critical heuristics indicate exploitation of CVE-2007-5659 (Collab.collectEmailInfo) and CVE-2008-2992 (util.printf), both known vulnerabilities in Adobe Reader. The embedded JavaScript stream, named 'javascript_obj0013_001.js', likely contains the exploit code. The ClamAV detection further confirms its malicious nature.

Heuristics 8

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)
util.printf — CVE-2008-2992 critical CVE exact CVE_2008_2992

PDF JavaScript calls util.printf() — CVE-2008-2992 is a stack buffer overflow in Adobe Reader triggered by a long format-specifier argument. Widely exploited in the wild after disclosure. (matched in decompressed stream)
ClamAV: Pdf.Exploit.Agent-7345 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Exploit.Agent-7345
OpenAction trigger high PDF_OPENACTION

PDF has an /OpenAction — code runs automatically when opened
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_obj0013_001.js` `bb11ee62395df07cd98e0a1630c4e15e0480dbb1d4ceec490935673f315c4fda`	pdf-javascript-stream	PDF /JS object 13 at offset 0x3D7	3206 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 5 eval/decoder/string-building token(s).

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