PDF malware analysis — malicious · 946bb2236d1926bc

MALICIOUS

PDF

12.4 KB

MD5: e6eab46fc8d049d772dee9d0e80b8c91 SHA-1: 872299cb9d693017b7b7f032d12de264580103db SHA-256: 946bb2236d1926bcc260f2f0e8186d1462a91a772abb64ba4c2f88a216d64cec

138 Risk Score

Malware Insights

MITRE ATT&CK

T1204.002 Malicious File T1059.001 JavaScript

The PDF file contains embedded JavaScript and triggers a critical heuristic for CVE-2007-5659, indicating exploitation of a known vulnerability. The file also contains deobfuscated JavaScript artifacts, suggesting the execution of malicious code. The ClamAV detection further supports its malicious nature. The exact payload or ultimate goal is not clear from the provided evidence, but the exploit and script execution are indicative of a downloader or initial access mechanism.

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` `b889cf6e6d4e1d4a25077a467ca2435f99cf0f1986e70c72ffb850a140920419`	deobfuscated-js	repeated-marker hex decoded JavaScript at offset 0x2F5	12068 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 1 long base64-like blob(s).
`legacy_pdfkit_stage_001.js` `71ec23684a10a8e692627fce92cdd3f1c2f036004f451f51c6a0d8f43173ab76`	deobfuscated-js	repeated-marker hex decoded JavaScript at offset 0x2F5	5012 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 5 eval/decoder/string-building token(s).

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