PDF malware analysis — malicious · 55e6101738961878

MALICIOUS

PDF

4.3 KB Created: 2008-01-35 22:21:26 Authoring application: Adobe

MD5: 604a518cd516010e03472f05d4f0a818 SHA-1: 7a230335ffcdfdb05cc40f6b8d09b42c1b72d7a3 SHA-256: 55e6101738961878946d1a65b25dc5c7c904365d4e6af2dd03593fa39844ef04

258 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1204.002 Malicious File

This PDF file contains multiple critical heuristic firings indicating exploitation of CVE-2009-4324, CVE-2009-0927, and CVE-2007-5659. These vulnerabilities are used to execute embedded JavaScript. The analysis also detected a suspicious extracted artifact, 'legacy_pdfkit_stage_000.js', which was flagged by ClamAV as 'Js.Exploit.Shellcode-18'. This suggests the PDF is designed to download and execute a malicious second-stage payload.

Heuristics 7

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)
ClamAV detection on extracted artifact critical EXTRACTED_FILE_CLAMAV

ClamAV flagged at least one file extracted from inside this sample. Even when the wrapping document carries no AV detection of its own, a hit on the carved artifact is a strong indicator the sample is a delivery vehicle.
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 4

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`javascript_obj0032_000.js` `3861f6f9e17f5adb580977a12fb398e6bf9278e94144738f5c4290f8c8660a56`	pdf-javascript-stream	PDF /JS object 32 at offset 0x35E	441 bytes
`javascript_obj0034_001.js` `d4bd18add3b1dbc8632cb26dc05c33123a19a8ca589160dd48a70c0f797326df`	pdf-javascript-stream	PDF /JS object 34 at offset 0x1F1	442 bytes
`javascript_obj0036_002.js` `9fb83e5004162e3e1ed59c6d4081d5d35432b1b819596dbc9c554181fa8f787b`	pdf-javascript-stream	PDF /JS object 36 at offset 0x43	420 bytes
`legacy_pdfkit_stage_000.js` `a972e440e22e842732189dba3ac45d7045067d5a1cda33c8d6ee02bf9415927e`	deobfuscated-js	repeated-marker hex decoded JavaScript at offset 0x497	6400 bytes
Detection ClamAV: Js.Exploit.Shellcode-18 Obfuscation or payload: likely Carved artifact contains 12 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.