PDF malware analysis — malicious · 8a2c0195db5eb5ab

MALICIOUS

PDF

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

MD5: 254b0a83fa85946d98392af3c4131ad5 SHA-1: d53c51c8f291f997b43950239bf11bb0bc78c7f1 SHA-256: 8a2c0195db5eb5ab9dbe3690bbd1640a35eb07753f475b27a60c0ed1568efa20

198 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1204.001 Malicious Link

The PDF file contains multiple critical heuristic firings related to known Adobe Reader exploits (CVE-2009-4324, CVE-2009-0927, CVE-2007-5659). These exploits are designed to execute embedded JavaScript. The presence of deobfuscated JavaScript files suggests the script's purpose is to download and execute a secondary payload, a common technique for initial access.

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` `cf3e20155f3195c7de2f5f5a2859adec5ea5ef84b8ff8c3c915b17ffe820ce19`	pdf-javascript-stream	PDF /JS object 32 at offset 0x342	269 bytes
`javascript_obj0034_001.js` `4b2c2cc237c89ba97ffaf56bf9bb94f233261d7c8a5831db9734880e1d837abf`	pdf-javascript-stream	PDF /JS object 34 at offset 0x435	325 bytes
`javascript_obj0036_002.js` `85af1376764bd16cbed47006f1fc9751ef0f74de43efdf5ca62a12e202bc443a`	pdf-javascript-stream	PDF /JS object 36 at offset 0xBC	224 bytes
`legacy_pdfkit_stage_000.js` `22a6a208648dff6c065cc69c8b36dd18ce75f6c4d5faa906ccd32de67f9d364b`	deobfuscated-js	repeated-marker hex decoded JavaScript at offset 0x573	1694 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` `0c9eb77f8a95e6adabe2102d904fd2e0b695f1892794bbc12ec0dc79d2a3e7e6`	deobfuscated-js	repeated-marker hex decoded JavaScript at offset 0xB32	1854 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` `2c778b45703aec0e461dc4e723d4e9677a9d407c1d3f906f42412dcd32eef508`	deobfuscated-js	repeated-marker hex decoded JavaScript at offset 0x10CD	3046 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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