PDF malware analysis — malicious · c78bff6da089b986

MALICIOUS

PDF

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

MD5: 12efc2855632efc89aa01f65257c052a SHA-1: 3d24ffa0002b87289bc121a27f43a43101cb4cec SHA-256: c78bff6da089b98638a5e78ce19c0a874fc7f1f471eed88c4b7d7a1d4e13b8ef

258 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1204.002 Malicious File

Multiple critical heuristics indicate the exploitation of CVE-2009-4324, CVE-2009-0927, and CVE-2007-5659 through embedded JavaScript. The ClamAV detection of 'Pdf.Exploit.Agent-13452' further confirms its malicious nature. The embedded JavaScript streams, deobfuscated into legacy_pdfkit_stage_*.js files, likely facilitate the execution of a second-stage payload, although the exact mechanism is not fully detailed in the provided evidence.

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: Pdf.Exploit.Agent-13452 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Exploit.Agent-13452
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 6

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`javascript_obj0032_000.js` `5d80d4f58607bdb3d21125e648dc6740b6ea0f3410277c02850f03cac321bc16`	pdf-javascript-stream	PDF /JS object 32 at offset 0x33D	268 bytes
`javascript_obj0034_001.js` `f426524fe253aa87778961b3f1165397c4f453ff3ad255653e0aa1ff5adbb301`	pdf-javascript-stream	PDF /JS object 34 at offset 0x431	315 bytes
`javascript_obj0036_002.js` `58f9f0daf44f15a385310b339ea88c7d526ef776ace2d7a932e75bc2f9d23248`	pdf-javascript-stream	PDF /JS object 36 at offset 0xBC	218 bytes
`legacy_pdfkit_stage_000.js` `22a6a208648dff6c065cc69c8b36dd18ce75f6c4d5faa906ccd32de67f9d364b`	deobfuscated-js	repeated-marker hex decoded JavaScript at offset 0x56D	1694 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` `0c9eb77f8a95e6adabe2102d904fd2e0b695f1892794bbc12ec0dc79d2a3e7e6`	deobfuscated-js	repeated-marker hex decoded JavaScript at offset 0xB2C	1854 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` `2c778b45703aec0e461dc4e723d4e9677a9d407c1d3f906f42412dcd32eef508`	deobfuscated-js	repeated-marker hex decoded JavaScript at offset 0x10C7	3046 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.