PDF malware analysis — malicious · 83dd00a91800b7a9

MALICIOUS

PDF

5.0 KB Created: 2010-03-03 10:39:12 Authoring application: zw6a3d1

MD5: 23449f43374333dd2772d7f64f70e511 SHA-1: d3dd145aeb1653e1ffa8dc07ab4f0623729d7074 SHA-256: 83dd00a91800b7a9386e2447bc4be234835e7833ea2b8bf3eb79f038c1dcb988

200 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 JavaScript/JScript T1204.002 Malicious File

The PDF sample contains multiple critical heuristic firings indicating exploitation of CVE-2009-4324, CVE-2009-0927, and CVE-2007-5659. These exploits leverage embedded JavaScript to achieve code execution. The presence of a deobfuscated JavaScript file suggests the script is designed to download and execute a second-stage payload. The lack of specific indicators for a known family leads to an 'unknown family' classification.

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 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`javascript_obj0028_000.js` `4747b24079776bef54a4a9413c92ac3e4a1086a1527801da92824155a44d0079`	pdf-javascript-stream	PDF /JS object 28 at offset 0x1093	317 bytes
`legacy_pdfkit_stage_000.js` `b13f3bfb93ea59af24099c297126dbf634af2669bf797571a9d02d4ce4818313`	deobfuscated-js	repeated-marker hex decoded JavaScript at offset 0x1EC	7453 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 17 eval/decoder/string-building token(s). Carved artifact contains 1 long base64-like blob(s).

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