PDF malware analysis — malicious · e974563447f93e0c

MALICIOUS

PDF

12.1 KB

MD5: d6fb19c64f2351c83cb8498b7424d205 SHA-1: 59adcef7ae38e344494cef560c1a17bbe9847b2b SHA-256: e974563447f93e0c5d918d3ae08dc8e82f151e78fc94452ec0898e591971f66e

138 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1204.001 Malicious Link

The PDF file contains embedded JavaScript, indicated by multiple heuristic firings including 'PDF_JAVASCRIPT' and 'PDF_JS'. The critical 'CVE_2007_5659' heuristic specifically points to the use of 'collab.collectEmailInfo' to execute JavaScript, which is a known method for exploiting PDF vulnerabilities. The presence of deobfuscated JavaScript files suggests the script's purpose is to download and execute a secondary payload, aligning with common PDF-based attack vectors. The file is classified as malicious by ClamAV with the signature 'Pdf.Exploit.Agent-36065'.

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` `4c0efdd420a36450bac2095a51caa35b96cd6b8328996b7bceaf216884d86841`	deobfuscated-js	repeated-marker hex decoded JavaScript at offset 0x315	12519 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 1 long base64-like blob(s).
`legacy_pdfkit_stage_001.js` `bfc9c900e9a367c60fc5b8741259af0d3826e487f794caf0e861cdb152b2a6f9`	deobfuscated-js	repeated-marker hex decoded JavaScript at offset 0x315	5142 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 5 eval/decoder/string-building token(s).

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