PDF malware analysis — malicious · ce9188de032602ef

MALICIOUS

PDF

11.9 KB

MD5: d228e3d35d1ce610d6f6faba8f20846d SHA-1: 5ec6c4b33bc12650c409625e4edcbd0adbce5a3d SHA-256: ce9188de032602ef08b2743dd8066354c7b53e9012a19adbbe1e65b9b5c430f6

138 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1204.002 Malicious File

The PDF file contains embedded JavaScript, indicated by multiple heuristic firings including 'PDF_JAVASCRIPT' and 'PDF_JS'. The critical 'CVE_2007_5659' heuristic specifically points to the exploitation of a known vulnerability via JavaScript. The embedded artifacts 'legacy_pdfkit_stage_000.js' and 'legacy_pdfkit_stage_001.js' suggest a multi-stage JavaScript execution chain, typical for downloading and executing further payloads. The ClamAV detection 'Pdf.Exploit.Agent-36065' further confirms its malicious nature.

Heuristics 5

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-36065 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Exploit.Agent-36065
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_obj0007_000.js` `9c67560e8c63b720885d3efc1627b844b86a6ec08e99e5b65a22eae832045756`	pdf-javascript-stream	PDF /JS object 7 at offset 0x19C	431 bytes
`legacy_pdfkit_stage_000.js` `b4360301c4a0968a74990217e559ffd9548dbb7aeeeaa8579e7cd941de74e190`	deobfuscated-js	repeated-marker hex decoded JavaScript at offset 0x315	12203 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 1 long base64-like blob(s).
`legacy_pdfkit_stage_001.js` `41352bce4af7ffafb925b518298067d2ee69868d3edf4c5fdd346eb3051aa865`	deobfuscated-js	repeated-marker hex decoded JavaScript at offset 0x315	5008 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 5 eval/decoder/string-building token(s).

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