PDF malware analysis — malicious · ed4df2fca1c7154f

MALICIOUS

PDF

6.2 KB Created: 2009-01-35 62:12:26 Authoring application: Adobe

MD5: 96c85d28d9cb01e7ca8817560af0a359 SHA-1: 65cfeb977ab11fbe1447bdc4676878a05d14898d SHA-256: ed4df2fca1c7154f53d45fed371b4cbb74d27e72df57ffc251f04e42069d6253

198 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 JavaScript/JScript T1204.002 Malicious File

The PDF file contains multiple critical heuristic firings indicating exploitation of CVE-2009-4324, CVE-2009-0927, and CVE-2007-5659. These vulnerabilities are associated with the execution of embedded JavaScript. The analysis also identified deobfuscated JavaScript files, suggesting the sample attempts to download and execute a secondary payload. The lack of specific IOCs like URLs or hashes prevents a more precise family attribution.

Heuristics 6

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. (identified after JavaScript deobfuscation)
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)
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 6

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`javascript_obj0032_000.js` `1b73f49dc1f80783d734438f00a6dc13f009101a9a46f2dc2d01869e7f048839`	pdf-javascript-stream	PDF /JS object 32 at offset 0x362	277 bytes
`javascript_obj0034_001.js` `ab50d084eeca2aecba0e299181d17d38eb1ddf38606c02d5a2b68076de6225b7`	pdf-javascript-stream	PDF /JS object 34 at offset 0x45F	405 bytes
`javascript_obj0036_002.js` `2677686504cbe259c2f15f2d103deb3dfc9bb59d8c0f6734aef1f8410003aa11`	pdf-javascript-stream	PDF /JS object 36 at offset 0xBC	272 bytes
`legacy_pdfkit_stage_000.js` `de0a84f644c282c4c2e84ff204cd581c0f7ea198155403bb40e5214bda4001a7`	deobfuscated-js	repeated-marker hex decoded JavaScript at offset 0x5AD	1676 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 3 eval/decoder/string-building token(s).
`legacy_pdfkit_stage_001.js` `89747115a0c2859a29790bcc1302f256940ebf818804d9c0d37ad82490c82a9f`	deobfuscated-js	repeated-marker hex decoded JavaScript at offset 0xB59	1842 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 3 eval/decoder/string-building token(s).
`legacy_pdfkit_stage_002.js` `959242c5d95abe63ae41f9ae34e2f25098d08c0d6eeafb64d65e7ecf1f3305f3`	deobfuscated-js	repeated-marker hex decoded JavaScript at offset 0x10EA	3022 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 6 eval/decoder/string-building token(s). Carved artifact contains 1 long base64-like blob(s).

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