PDF malware analysis — malicious · ae9304d0e92a3b4e

MALICIOUS

PDF

5.7 KB Created: 2008-09-24 19:47:56 Authoring application: Adobe (via Notepad)

MD5: a108af30613d0b83fa325d87f23f9692 SHA-1: 2fa74eb5026e9f4d3c9f6535d31890981ae2bc77 SHA-256: ae9304d0e92a3b4ecf11387f60ac9ef2da27d28332b781b71b3bd860453f2bd0

298 Risk Score

Malware Insights

MITRE ATT&CK

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

The PDF file contains embedded JavaScript that exploits known vulnerabilities (CVE-2009-0927 and CVE-2007-5659) via `Collab.getIcon` and `Collab.collectEmailInfo` functions. The JavaScript is obfuscated and uses `eval()` to execute, indicating it's designed to download and run a secondary payload. The presence of two extracted JavaScript files further supports this. The confidence is high due to the critical heuristic firings and the clear exploitation of known PDF vulnerabilities.

Heuristics 8

Collab.getIcon — CVE-2009-0927 critical CVE exact CVE_2009_0927

PDF JavaScript calls Collab.getIcon — CVE-2009-0927 is a stack buffer overflow in Adobe Reader triggered by Collab.getIcon() with a crafted argument. Allows arbitrary code execution. (identified after JavaScript deobfuscation)
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. (identified after JavaScript deobfuscation)
ClamAV: Pdf.Exploit.Agent-35931 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Exploit.Agent-35931
ClamAV detection on extracted artifact critical EXTRACTED_FILE_CLAMAV

ClamAV flagged at least one file extracted from inside this sample. Even when the wrapping document carries no AV detection of its own, a hit on the carved artifact is a strong indicator the sample is a delivery vehicle.
eval() call high PDF_EVAL

eval() found — commonly used for obfuscated exploit execution (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_obj0006_000.js` `89a252eba461874fd89c38be5f739840531707eee7de3382fa1c62909dd8a8a9`	pdf-javascript-stream	PDF /JS object 6 at offset 0x133F	815 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 2 eval/decoder/string-building token(s).
`legacy_pdfkit_stage_000.js` `8d83f782a37e5497f8a68769bdc5c25b847ec76e875c577c42ef6e1e60dc089e`	deobfuscated-js	repeated-marker hex decoded JavaScript at offset 0x16E	4879 bytes
Detection ClamAV: Js.Exploit.Shellcode-18 Obfuscation or payload: likely Carved artifact contains 9 eval/decoder/string-building token(s). Carved artifact contains 1 long base64-like blob(s).

Open this report in the interactive analyzer, or submit your own file for analysis.