PDF malware analysis — malicious · c1e8e47bd183da4c

MALICIOUS

PDF

11.7 KB

MD5: 2b033b5068dd9580398b58360baf4f51 SHA-1: 1e93719b6ebce71c7d8ae27c238d893278e0e7b9 SHA-256: c1e8e47bd183da4c9ae1f11aceebe4d2d21b6b8270829fa70534b7c7b6a5c88d

138 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1204.002 Malicious File

The PDF file contains embedded JavaScript, specifically identified as exploiting CVE-2007-5659 via the 'collab.collectEmailInfo' function. This function is known to be used in PDF exploits to execute arbitrary JavaScript. The presence of deobfuscated JavaScript files ('legacy_pdfkit_stage_000.js', 'legacy_pdfkit_stage_001.js') further indicates malicious scripting activity. The primary attack pattern involves leveraging this vulnerability to run further malicious code, likely a downloader.

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` `377ec35f83ef3696e33a9a6f9749b39fca18c484192c4f1423be388baf59e224`	deobfuscated-js	repeated-marker hex decoded JavaScript at offset 0x315	11909 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 1 long base64-like blob(s).
`legacy_pdfkit_stage_001.js` `4d14b48a174310bcd9c837f530a52274c82ef4d6b09009b15bfea021887af494`	deobfuscated-js	repeated-marker hex decoded JavaScript at offset 0x315	4907 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.