PDF malware analysis — malicious · b2dd84026ef56152

MALICIOUS

PDF

12.5 KB

MD5: b66a8394063b22aa29a3720305ce4024 SHA-1: d5b42d33143eea079ecc6d49123a894ebc6e6dcc SHA-256: b2dd84026ef561520c60ced4a3d0710f38d446c4fb52328a5d35dbba66cc1b61

138 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1204.001 Malicious Link

The PDF file contains embedded JavaScript, flagged by multiple heuristics as malicious. Specifically, the CVE-2007-5659 rule indicates the use of the Collab.collectEmailInfo method to execute JavaScript, a known technique for exploiting older Adobe Reader versions. The presence of deobfuscated JavaScript files suggests the script's purpose is to download and execute further stages. The ClamAV detection further corroborates the malicious nature of the file.

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` `a275b46dce0582958a8c56440d6559fa972cee91863e2664fe1b6b9ef7ca5ef7`	deobfuscated-js	repeated-marker hex decoded JavaScript at offset 0x2F5	12143 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 1 long base64-like blob(s).
`legacy_pdfkit_stage_001.js` `d8c9d979031673f9ddfcf3b3d4667f179db7d2f6187f6f391ea34208c5101897`	deobfuscated-js	repeated-marker hex decoded JavaScript at offset 0x2F5	5003 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.