MALICIOUS
200
Risk Score
Malware Insights
MITRE ATT&CK
T1059.001 PowerShell
T1204.002 Malicious File
This PDF file contains embedded JavaScript that exploits CVE-2009-0927 (Collab.getIcon) and CVE-2007-5659 (Collab.collectEmailInfo). The JavaScript is obfuscated and likely designed to download and execute a secondary payload, as indicated by the ClamAV detection of Pdf.Dropper.Agent-1828700 and the presence of a deobfuscated JavaScript file named legacy_pdfkit_stage_000.js. The attack pattern involves leveraging these known PDF vulnerabilities to achieve arbitrary code execution.
Heuristics 6
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Collab.getIcon — CVE-2009-0927 critical CVE exact CVE_2009_0927PDF JavaScript calls Collab.getIcon — CVE-2009-0927 is a stack buffer overflow in Adobe Reader triggered by Collab.getIcon() with a crafted argument. Allows arbitrary code execution. (identified after JavaScript deobfuscation)
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Collab.collectEmailInfo — CVE-2007-5659 critical CVE exact CVE_2007_5659PDF 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)
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ClamAV: Pdf.Dropper.Agent-1828700 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Dropper.Agent-1828700
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JavaScript action low PDF_JAVASCRIPTPDF contains a /JavaScript action. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
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Embedded JS stream low PDF_JSPDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
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Suspicious extracted artifact info EXTRACTED_FILE_STATIC_TRIAGEOne 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_obj0006_000.js06729b2e6929bb3534cd5a9b41fb31c09bcc1038c332fc2b101e8302790a2569 |
pdf-javascript-stream | PDF /JS object 6 at offset 0x1406 | 136 bytes |
javascript_obj0016_001.jsbac489a489c3f0458ca365d9571cdef8ff59a5bd2baba911750ac708d8464284 |
pdf-javascript-stream | PDF /JS object 16 at offset 0x14D3 | 170 bytes |
legacy_pdfkit_stage_000.jsf15fc9701fbe9ffeda0f3214898d47d2987d39ffad6cc912fac2cade6be3a65b |
deobfuscated-js | repeated-marker hex decoded JavaScript at offset 0x1E7 | 4949 bytes |
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Detection
ClamAV:
No threats found
Obfuscation or payload:
likely
Carved artifact contains 9 eval/decoder/string-building token(s). Carved artifact contains 1 long base64-like blob(s).
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