PDF malware analysis — malicious · 7de790f8dc8aecbe

MALICIOUS

PDF

12.7 KB

MD5: 02092914874fffa59817a8e1d5a08462 SHA-1: 3713fde7c0360cdc4e9e3ab273681a9e33e43df1 SHA-256: 7de790f8dc8aecbe979bbac6e70d893ad7d5ac0effc5c2aa2a243e4570bb2657

138 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1204.002 Malicious File

The file is a PDF containing embedded JavaScript, identified as malicious by ClamAV (Pdf.Exploit.Agent-36062). Heuristics indicate exploitation of CVE-2007-5659 via JavaScript actions and streams. The presence of deobfuscated JavaScript files suggests the script's purpose is to download and execute a second-stage payload, a common technique for initial compromise.

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` `52afaeea05a56b0a3252e4dfa530a76b373b9b52289672849bacc051fe42759a`	deobfuscated-js	repeated-marker hex decoded JavaScript at offset 0x2F5	12512 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 1 long base64-like blob(s).
`legacy_pdfkit_stage_001.js` `8e5507f9afa25afbd5a007b7e0fa886c6caff8c3f5ee22189d33ed7fa5a9f19a`	deobfuscated-js	repeated-marker hex decoded JavaScript at offset 0x2F5	5149 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 5 eval/decoder/string-building token(s).

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