PDF / .COM malware analysis — malicious · c4068f6ca3c275d4

MALICIOUS

PDF / .COM

40.3 KB

MD5: f89c9346706dcd9bfde53660e03f8454 SHA-1: 6e6f97a0a6aa2e5edc55159aa53840572e6e325c SHA-256: c4068f6ca3c275d40d1cb64939903b825de84e316e3c9be459775796737d9d56

178 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1204.001 Malicious Link

The PDF file contains embedded JavaScript and exploits CVE-2007-5659, indicated by the 'Collab.collectEmailInfo' heuristic. The presence of U3D content and ClamAV detection further confirms its malicious nature. The embedded JavaScript is likely responsible for downloading and executing a second-stage payload, as suggested by the heuristic 'PDF_JAVASCRIPT' and the extracted JavaScript files.

Heuristics 6

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)
U3D/3D content in PDF — Adobe Reader 3D parser CVE-family indicator high CVE related PDF_U3D_CVE_RELATED

PDF contains U3D (Universal 3D) or 3D annotation content — CVE-2011-2462 and CVE-2009-3953 are critical vulnerabilities in Adobe Reader's U3D processing that allow arbitrary code execution. U3D content in PDFs is extremely rare in normal documents.
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 4

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 0x1A2	373 bytes
`legacy_pdfkit_stage_000.js` `07030fb26de3ea0bcb5f5126371fdb974f92265f5304e9324c2b04c1974b9978`	deobfuscated-js	repeated-marker hex decoded JavaScript at offset 0x2FC	12928 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 1 long base64-like blob(s).
`legacy_pdfkit_stage_001.js` `f20da4f6c6c8d70db431256907f7569bd2f989480fa6b9dfa361365d4d55913c`	deobfuscated-js	repeated-marker hex decoded JavaScript at offset 0x2FC	5460 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 5 eval/decoder/string-building token(s).
`u3d_00_off000034b9.bin` `48816569ab4f370009a917ef6429edbe09e4dfe8a63b00a0a0f75a904c62ba94`	pdf-3d-stream	PDF U3D 3D stream at offset 0x34B9	27449 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact entropy is 7.99, consistent with packed or encrypted content.

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