PDF malware analysis — malicious · 1ebada8b9a8e9f6f

MALICIOUS

PDF

12.3 KB

MD5: da1781e1e0801cd2a6109fed9a4bd543 SHA-1: 3c1a19714a8deb9a61502c7cc4d0a379c5f93cb2 SHA-256: 1ebada8b9a8e9f6f2a39cdae8e25b4bf68a7813adb37a615c481144a9da84391

138 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1204.002 Malicious File

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 to execute JavaScript, a known technique for exploiting PDF vulnerabilities. The presence of deobfuscated JavaScript files suggests the script's purpose is to download and execute further malicious content. The ClamAV detection further confirms its 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` `deed7f18e6a043c355be8fd89d935e720790a16a87ed495bde2dd8a7fd593cc9`	deobfuscated-js	repeated-marker hex decoded JavaScript at offset 0x2F5	11929 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 1 long base64-like blob(s).
`legacy_pdfkit_stage_001.js` `8f5b080f48068f076d25207335fef643267d7186579b7e70102037f5acc0bd4e`	deobfuscated-js	repeated-marker hex decoded JavaScript at offset 0x2F5	4900 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 5 eval/decoder/string-building token(s).

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