PDF malware analysis — malicious · c5b524897e677781

MALICIOUS

PDF

160.2 KB Created: 2002-11-26 14:08:42 -08:00 Authoring application: Acrobat Distiller 5.0.5 (Windows)

MD5: 97801559a20ba31d2463c35cc65d9170 SHA-1: 946b8b12764e56597d77cba206dcfd95c8fbf72c SHA-256: c5b524897e6777818b6a8927b8dcd671bdf33558aa82647c1e94f072fb5653c0

238 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1204.002 Malicious Link

This PDF file contains embedded JavaScript and exploits known vulnerabilities (CVE-2009-4324 and CVE-2007-5659) to achieve code execution. The presence of JavaScript actions and unescape calls within the PDF structure strongly suggests an attempt to download and execute a secondary payload. The polyglot nature, embedding another PDF with similar suspicious findings, further reinforces the malicious intent.

Heuristics 8

media.newPlayer — CVE-2009-4324 critical CVE exact CVE_2009_4324

PDF JavaScript calls media.newPlayer — CVE-2009-4324 is a use-after-free in Adobe Reader's multimedia plugin triggered by media.newPlayer(). Actively exploited as a zero-day in December 2009. (matched in decompressed stream)
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)
Secondary embedded PDF body has suspicious static findings critical POLYGLOT_CHILD_PDF_STATIC_TRIAGE

A valid PDF body was found at a nonzero offset inside another container and its carved contents matched PDF exploit or lure heuristics. This catches polyglots where the top-level magic routes to ZIP/OLE while a PDF reader or downstream parser opens the hidden PDF payload.
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.
Embedded URL info EMBEDDED_URL

One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
URL http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/xap/1.0/mm/

Extracted artifacts 4

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`javascript_obj0022_000.js` `6595307c8f01bd0ae97c3d887de3d4dfcc3707dc2ded2dfd159354891a844121`	pdf-javascript-stream	PDF /JS object 22 at offset 0x1791	4821 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 17 eval/decoder/string-building token(s).
`font_00_cff_off00000761.bin` `e49c7bfbfc818e2f3954d4ce70a2bc6318ccf9c1ef2ef63ca76cf26462f5efaf`	pdf-font-stream	PDF embedded font (cff) at offset 0x761	321 bytes
`font_01_cff_off00000949.bin` `0db45283fafc3c1e8370dd30f58eb4eb6464083cb54cb4ab4ab9214e7e8b6dd7`	pdf-font-stream	PDF embedded font (cff) at offset 0x949	2955 bytes
`polyglot_child_pdf_off000253ce.pdf` `3c5ab7266f0596fa61e443584677d63d4537531ff2fec58148fb99f4783defb3`	polyglot-child-pdf	Secondary PDF body inside pdf container at offset 0x253CE	11493 bytes

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