PDF malware analysis — malicious · 4f2d5725ab3615a0

MALICIOUS

PDF

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

MD5: 9f86f90ae11e89107298cb0040421a47 SHA-1: 42761ab050e7492f30c60b3595275e216d527a72 SHA-256: 4f2d5725ab3615a020d8419ce441de8cdc7bdf5f0fc74b7bed7c02217943d2e8

278 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell 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 leveraged to execute obfuscated JavaScript, which is then further deobfuscated and likely used to download and execute a second-stage payload. The presence of multiple exploit-related firings and deobfuscated JavaScript streams 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)
eval() call high PDF_EVAL

eval() found — commonly used for obfuscated exploit execution (matched inside decoded stream)
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.

Extracted artifacts 7

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`javascript_obj0032_000.js` `fe76f9540a562210bbf6c82456aa30de683dd4fb84068142d55760203ba58961`	pdf-javascript-stream	PDF /JS object 32 at offset 0x40E	126 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 1 eval/decoder/string-building token(s).
`javascript_obj0034_001.js` `b1f24923b834625178cc8ef0cb0ee6bdabd532d541cf534607b5d4ef7175376b`	pdf-javascript-stream	PDF /JS object 34 at offset 0x4C5	115 bytes
`javascript_obj0036_002.js` `53dfe713e3bcd57ea3d5cef2628e72e6464606238a859476b1e9db201538cdc9`	pdf-javascript-stream	PDF /JS object 36 at offset 0xF9	118 bytes
`javascript_obj0038_003.js` `9ac2b4ab94f4d158008eec8d3d2d2406805ba516d71c63ed664862c8e1f85f18`	pdf-javascript-stream	PDF /JS object 38 at offset 0xC1C	146 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 1 eval/decoder/string-building token(s).
`legacy_pdfkit_stage_000.js` `3088d9b77323678b8502bb9bb2b02ef3e188745f549dc90fc0bc7e398b7fe8eb`	deobfuscated-js	repeated-marker hex decoded JavaScript at offset 0x5AB	1622 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` `18db88491ef923151a51eab64ac2da9b54797279cd262da610d25c71b75cab0d`	deobfuscated-js	repeated-marker hex decoded JavaScript at offset 0xD38	1788 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` `c5ee9f4fb211241c30adc803c1d072e5075fffac11899f9d736c1176b3b55d03`	deobfuscated-js	repeated-marker hex decoded JavaScript at offset 0x139E	2914 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).

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