PDF malware analysis — malicious · ae943a84d37a761c

MALICIOUS

PDF

1.9 KB

MD5: 2fa406ab7a7e0ecc97bbe538988d2b67 SHA-1: 674a02bcbe17eb91d2b63835e64ac5c108264729 SHA-256: ae943a84d37a761c74bcfb56988b58534a48dfdbd347c9e33fe6d65fff2e0c11

220 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1204.001 Malicious Link T1059.007 JavaScript

This PDF file contains embedded JavaScript that is obfuscated using `unescape()` and `eval()` calls, indicating malicious intent. The critical heuristic `CVE_2009_0927` specifically points to the exploitation of a known vulnerability in Adobe Reader related to the `Collab.getIcon` method. The JavaScript is designed to be executed, likely to download and run a second-stage payload. The file is identified by ClamAV as `Pdf.Exploit.Agent-35930`.

Heuristics 7

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)
ClamAV: Pdf.Exploit.Agent-35930 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Exploit.Agent-35930
eval() call high PDF_EVAL

eval() found — commonly used for obfuscated exploit execution (matched inside decoded 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_obj111611_000.js` `f23e505f155bfa9b9f356fa9fddf8d7fcafcc37fc2df3878e575e72c00c819d4`	pdf-javascript-stream	PDF /JS object 111611 at offset 0x6C5	697 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 3 eval/decoder/string-building token(s).
`legacy_pdfkit_stage_000.js` `c1f723af6e8b8f5c032b8799ed26f45cb6d87ce46c7793f42621a9fa0e8f192b`	deobfuscated-js	repeated-marker hex decoded JavaScript at offset 0x189	2619 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 3 eval/decoder/string-building token(s).

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