PDF malware analysis — malicious · 1ffe597bc6f35a2c

MALICIOUS

PDF

12.6 KB

MD5: c9115a8a616bb1080c2cb1909b21ff64 SHA-1: a24f609760e6b4f966de0e3b3b9274ed7d093479 SHA-256: 1ffe597bc6f35a2cc4ebc3f2859e54d7690b03cbe1077074b4650ba702b08553

138 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1204.002 Malicious File

The PDF file contains embedded JavaScript, identified by multiple heuristics including 'PDF_JAVASCRIPT' and 'PDF_JS'. The critical 'CVE_2007_5659' heuristic indicates the exploitation of a known vulnerability using a specific JavaScript method ('Collab.collectEmailInfo') to likely download and execute a second-stage payload. The presence of deobfuscated JavaScript files further supports this. The ClamAV detection 'Pdf.Exploit.Agent-36062' corroborates the 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-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` `495d41320123c928bddca09c542f0f7bcccc1b3fcb5184fa6457d5acf66331af`	deobfuscated-js	repeated-marker hex decoded JavaScript at offset 0x2F5	12379 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 1 long base64-like blob(s).
`legacy_pdfkit_stage_001.js` `76b08253afeb99530ec9c309c535170fb72a0403df61a6475b597808e86d2427`	deobfuscated-js	repeated-marker hex decoded JavaScript at offset 0x2F5	5141 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 5 eval/decoder/string-building token(s).

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