PDF malware analysis — malicious · ee84f6e5307c2e98

MALICIOUS

PDF

13.0 KB

MD5: 0ea3b72e06959f50a9c228a9031c8a63 SHA-1: f0a6416d4e7da763f0697b78b76c25c0fe4385f0 SHA-256: ee84f6e5307c2e98b00276f6ea060fad722734e5c71a257bc79bad0bf14ecf8c

138 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1204.001 Malicious Link

The PDF file contains embedded JavaScript, indicated by the PDF_JAVASCRIPT and PDF_JS heuristics. The critical CVE_2007_5659 heuristic specifically points to the use of Collab.collectEmailInfo for JavaScript execution, a known exploit vector. The presence of deobfuscated JavaScript files (legacy_pdfkit_stage_000.js, legacy_pdfkit_stage_001.js) suggests a multi-stage attack. The primary intent appears to be the execution of malicious code, likely for downloading and running further payloads.

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` `6f7c3082907e8ed8692056429f15a8820ad07df1d263826a71ccc1db9c700cc8`	deobfuscated-js	repeated-marker hex decoded JavaScript at offset 0x2F5	12678 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 1 long base64-like blob(s).
`legacy_pdfkit_stage_001.js` `bfe109027e40e6422b2c57d7dc5f864ec59ec3c18aabc421015f0faae77b0688`	deobfuscated-js	repeated-marker hex decoded JavaScript at offset 0x2F5	5281 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 5 eval/decoder/string-building token(s).

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