PDF malware analysis — malicious · b0322c225e97c64a

MALICIOUS

PDF

17.3 KB Created: 2010-01-01 07:27:45 Authoring application: Fexaxououazobb

MD5: db6bb6615dcc5b50f1c2470550d3fbcd SHA-1: 81af7678e747d1eaf997724dc1b2a172d34aa107 SHA-256: b0322c225e97c64a405570949598e6cd8b5ccac658a5de849f7c585712143371

258 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 through embedded JavaScript. The extracted JavaScript files, particularly 'legacy_pdfkit_stage_000.js', are heavily obfuscated but are flagged by ClamAV as 'Js.Exploit.Shellcode-18', suggesting they are designed to download and execute a second-stage payload. The presence of multiple JavaScript streams and the specific CVEs point to a multi-stage exploit delivery mechanism.

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 3

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`javascript_obj0012_000.js` `581f815868ae7648182374c1fc2ef893b412bc26b9a8932462c198e693d94db2`	pdf-javascript-stream	PDF /JS object 12 at offset 0x4AF	1136 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 2 eval/decoder/string-building token(s).
`javascript_obj0028_001.js` `885f5472c8dda103238e26f54db583997d4cf63b0b8818f443a17789f5ae12e4`	pdf-javascript-stream	PDF /JS object 28 at offset 0x1B9	1615 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 9 eval/decoder/string-building token(s).
`legacy_pdfkit_stage_000.js` `9d9520e7ce3bb9d4b4a4516ea172034351c89c335a10453de38d3ce38e9e720c`	deobfuscated-js	repeated-marker hex decoded JavaScript at offset 0x76A	30386 bytes
Detection ClamAV: Js.Exploit.Shellcode-18 Obfuscation or payload: likely Carved artifact contains 51 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.