PDF malware analysis — malicious · aba97aea3457c012

MALICIOUS

PDF

11.7 KB

MD5: ced9d540697db6c3d4722ad2ade2911e SHA-1: 2c041eb15934cee06196bcf91102da8e7da91382 SHA-256: aba97aea3457c01273342d3e01ab75b15f1d8070791f241a48265d08cd434f86

138 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1204.002 Malicious File

The PDF file contains embedded JavaScript, identified by multiple heuristics including CVE-2007-5659 which specifically targets the 'Collab.collectEmailInfo' function. This function is used to construct and execute JavaScript, indicating an attempt to exploit a vulnerability. The presence of deobfuscated JavaScript files further supports this. The exact payload or ultimate goal is not fully discernible from the provided evidence, but the exploit mechanism is clear.

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-36065 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Exploit.Agent-36065
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` `9c67560e8c63b720885d3efc1627b844b86a6ec08e99e5b65a22eae832045756`	pdf-javascript-stream	PDF /JS object 7 at offset 0x19C	431 bytes
`legacy_pdfkit_stage_000.js` `390c88f74f87e47ad13a908dbe244011773aa87fe04c8ca648d417d73d888aeb`	deobfuscated-js	repeated-marker hex decoded JavaScript at offset 0x315	11922 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 1 long base64-like blob(s).
`legacy_pdfkit_stage_001.js` `0d1354de7e62acbc07b0f28c2e3dfb5cb02a1f72cf26ddbecd125a6165615437`	deobfuscated-js	repeated-marker hex decoded JavaScript at offset 0x315	4886 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 5 eval/decoder/string-building token(s).

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