PDF malware analysis — malicious · edc72930b4aba836

MALICIOUS

PDF

7.8 KB Authoring application: Jakogivexe

MD5: 0df8fe04d4d6d7ebebc1fbacb49f84c0 SHA-1: d666127a7257289b0a777c7f8fde240b8b4f9478 SHA-256: edc72930b4aba8364dd1e5eda5386fe491f52943b48d872396f443337487bdc5

298 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1204.001 Malicious Link or False Update

The PDF file contains multiple critical heuristic firings indicating exploitation of CVE-2009-4324, CVE-2009-0927, CVE-2007-5659, and CVE-2008-2992. These vulnerabilities are triggered by XOR-decoded JavaScript embedded within the document, which is executed via an OpenAction. The deobfuscated JavaScript likely serves to download and execute a second-stage payload, though the exact URL or mechanism is not directly extractable from the provided evidence. The presence of multiple exploit-related firings strongly suggests a malicious intent to compromise the user's system.

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. (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)
util.printf — CVE-2008-2992 critical CVE exact CVE_2008_2992

PDF JavaScript calls util.printf() — CVE-2008-2992 is a stack buffer overflow in Adobe Reader triggered by a long format-specifier argument. Widely exploited in the wild after disclosure. (identified after JavaScript deobfuscation)
OpenAction trigger high PDF_OPENACTION

PDF has an /OpenAction — code runs automatically when opened
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_obj0013_000.js` `c201b263d5c93bb7ba71cd54c2fe4c6572e2eb1219c86df8cee224b1076decea`	pdf-javascript-stream	PDF /JS object 13 at offset 0x1386	3588 bytes
`page_word_xor_stage_000.js` `716bb3f2c4bb5c5d03294dd84a0dfd2e4fd871c39b8e149a5bbaa7a3b6a44f75`	deobfuscated-js	page-word XOR decoded JavaScript (decompressed, key=0x3D) at offset 0x408	3575 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 6 eval/decoder/string-building token(s).

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