PDF malware analysis — malicious · af43adef48ad7de6

MALICIOUS

PDF

12.2 KB

MD5: ebef536cdbe461b6836ecaf6ba2f890b SHA-1: b27c998aa9f8cab9ef54009c55e7bf4756e2b7ff SHA-256: af43adef48ad7de68c3cbdcac305beef9236c12eecb774784b7171e69936da69

138 Risk Score

Malware Insights

MITRE ATT&CK

T1204 Malicious Link T1059.001 PowerShell

The PDF file contains embedded JavaScript that leverages the CVE-2007-5659 vulnerability, specifically using the Collab.collectEmailInfo method. This technique is commonly used to download and execute further malicious content. The presence of deobfuscated JavaScript files (legacy_pdfkit_stage_000.js, legacy_pdfkit_stage_001.js) indicates a multi-stage attack, typical of PDF-based malware delivery. ClamAV also identified this as Pdf.Exploit.Agent-36062.

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` `2430f7783159ae7ddd1f2b744fadcfdcb3e16a86d6e68f853bc5cf87bb1002e2`	deobfuscated-js	repeated-marker hex decoded JavaScript at offset 0x2F5	11807 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 1 long base64-like blob(s).
`legacy_pdfkit_stage_001.js` `32a6100de4ce6c4f0119ab7e5d188cf085aaf78f6c88a89908746e00b33c1025`	deobfuscated-js	repeated-marker hex decoded JavaScript at offset 0x2F5	4852 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.