PDF malware analysis — malicious · e4c6cb5dc7c3f08a

MALICIOUS

PDF

12.4 KB

MD5: b2322462e8d601fad6b9b1e8ea83234d SHA-1: cb415bfda21e6c3e47bc9b08b479dfad607780ef SHA-256: e4c6cb5dc7c3f08a153e3682dc817595807ae0713018f32843299b06cfa460e4

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'. A critical heuristic, 'CVE_2007_5659', specifically identifies the use of 'collab.collectEmailInfo' to execute JavaScript, which is a known method for exploiting PDF vulnerabilities. The presence of deobfuscated JavaScript files further supports the execution of malicious code. The exact intent of the script is not fully discernible due to obfuscation, but the exploit mechanism is clear.

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-36062 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Exploit.Agent-36062
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` `068944f8c011a88ab770b45c6de142b9305a1f515d410204d5eadd9ac2b5bfb3`	pdf-javascript-stream	PDF /JS object 7 at offset 0x19B	373 bytes
`legacy_pdfkit_stage_000.js` `e6d58e8b533e897dd6f2689dfd2c3ca037bca6c956176fbe8d9940dcf8ff9305`	deobfuscated-js	repeated-marker hex decoded JavaScript at offset 0x2F5	12045 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 1 long base64-like blob(s).
`legacy_pdfkit_stage_001.js` `d9570803a71a25404875e56b586250cc1123eb8f49424ac812be43ae92a1e24e`	deobfuscated-js	repeated-marker hex decoded JavaScript at offset 0x2F5	4981 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 5 eval/decoder/string-building token(s).

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