PDF malware analysis — malicious · eb6d55620e015438

MALICIOUS

PDF

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

MD5: 12b58cb79ea54bf084a089e2e825c5d4 SHA-1: 30f6601442b66739005964343f3391ac55cb027c SHA-256: eb6d55620e0154388be45b594ebfa6f9cecb11302f2814960cd298f879f6288b

218 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 JavaScript/Shell Script Execution T1204.001 Malicious Link/URL T1204.002 Malicious File

This PDF document is malicious, leveraging critical vulnerabilities CVE-2007-5659 (Collab.collectEmailInfo) and CVE-2008-2992 (util.printf) to execute embedded JavaScript. The JavaScript stream, identified as suspicious due to obfuscation indicators, is likely responsible for further payload delivery or exploitation. The presence of OpenAction and JavaScript actions further confirms the intent to automatically execute code upon opening.

Heuristics 7

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)
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` `df466e44d6ae4192dd127ca8ecdf363028b4340fc01d8ff0ec548e51f3da90db`	pdf-javascript-stream	PDF /JS object 13 at offset 0x3D7	4166 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 16 eval/decoder/string-building token(s).

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