PDF malware analysis — malicious · 2940d35210f916e3

MALICIOUS

PDF

11.9 KB

MD5: ba18692ae465f0115c536d455e3195fb SHA-1: edb7be0924981b5f8bf0a3a2002bccc97ff98edc SHA-256: 2940d35210f916e32cd0dc4cf040c06001c4f7af22abca8d9b3b7a7c8671fcb5

138 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1204.002 Malicious File

The PDF file contains embedded JavaScript, flagged by multiple heuristics including a critical alert for CVE-2007-5659. The JavaScript is further deobfuscated into two files, legacy_pdfkit_stage_000.js and legacy_pdfkit_stage_001.js. This indicates the file is designed to exploit a PDF vulnerability to execute code, likely downloading and running a second-stage payload. The specific exploit used is identified as CVE-2007-5659.

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` `af915df6679d660a5834caf108dc67933fd4b9c62b1009471f3955b9f00a0825`	deobfuscated-js	repeated-marker hex decoded JavaScript at offset 0x315	12093 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 1 long base64-like blob(s).
`legacy_pdfkit_stage_001.js` `6bf5470fdcc07f653c0144137c39799ef6dedcb428c0881642412dbf514c8838`	deobfuscated-js	repeated-marker hex decoded JavaScript at offset 0x315	5029 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 5 eval/decoder/string-building token(s).

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