PDF malware analysis — malicious · 1bbb97c259f2810a

MALICIOUS

PDF

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

MD5: 29be31b670229a7658672cde6835c1ec SHA-1: 84b9bf4a066b36f98ae327c07f23093c25733e65 SHA-256: 1bbb97c259f2810a4c3361ec38893df6f952b0c83a0c64bdeb2bf4cdec65cbb7

240 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1204.001 Malicious Link

This PDF file contains embedded JavaScript that exploits CVE-2009-0927 and CVE-2007-5659. The JavaScript is obfuscated and uses eval() to execute, indicating an attempt to download and run a second-stage payload. The file was detected by ClamAV as Pdf.Exploit.Agent-35931.

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)
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
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` `7bf43b1dd9ccbfe5b67702f4045459a8a71277fdc8c3c3d09b2990867a386c22`	pdf-javascript-stream	PDF /JS object 6 at offset 0xB75	217 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` `95a2322b56fae7f25a0411e2a658b3f3e324ee33da5c6dda825d17bd80be8dac`	deobfuscated-js	repeated-marker hex decoded JavaScript at offset 0x16E	4845 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 9 eval/decoder/string-building token(s). Carved artifact contains 1 long base64-like blob(s).

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