PDF malware analysis — malicious · 52cb24c4e1b398d6

MALICIOUS

PDF

11.8 KB

MD5: d937c8a35a683450f01a52dbd4128f44 SHA-1: 0630f7357d95f4fbddf3af38f1c3da91cba56bec SHA-256: 52cb24c4e1b398d62a29b2aa57d366a06ff6b0fa407eaed14f767f4e9b9c16b7

138 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1204.001 Malicious Link

The PDF file contains embedded JavaScript, triggered by the 'Collab.collectEmailInfo' method, which is associated with the CVE-2007-5659 vulnerability. This exploit is designed to execute arbitrary JavaScript. The presence of deobfuscated JavaScript files ('legacy_pdfkit_stage_000.js', 'legacy_pdfkit_stage_001.js') indicates a multi-stage attack, likely involving the download and execution of further malicious content. The ClamAV detection 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` `18a6cd95a7b1f9790f59c40b73554534ee8a867b3fe23d59d5d032b519e7f328`	deobfuscated-js	repeated-marker hex decoded JavaScript at offset 0x315	12119 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 1 long base64-like blob(s).
`legacy_pdfkit_stage_001.js` `163c65a1c08c7543a05064b58184ca0e9a22d98e0cfa10c70dd74eb95beeb2e2`	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).

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