PDF malware analysis — malicious · 99df5dd5638a121a

MALICIOUS

PDF

7.7 KB Authoring application: Qimigiwova (via edd03Bashemeriwesohitaro)

MD5: 64b6d81f4edb38a918e005f7b96c33dc SHA-1: 70d9f9fc9a4e93aebfd27d66ec04a4fe51af6481 SHA-256: 99df5dd5638a121a299ae6ec3f7f2acdd1141be90113b21b79ce756636f1558b

76 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1566.002 Spearphishing Attachment

The PDF document contains embedded JavaScript, indicated by the 'PDF_JAVASCRIPT' and 'PDF_JS' heuristic firings. The ClamAV detection 'Heuristics.PDF.ObfuscatedNameObject' further suggests malicious intent. The JavaScript is likely responsible for downloading and executing a secondary payload, a common technique for initial access and further infection. The document body is heavily obfuscated and unreadable, providing no direct clues to the lure.

Heuristics 3

ClamAV: Heuristics.PDF.ObfuscatedNameObject critical CLAMAV_DETECTION

ClamAV detected this file as malware: Heuristics.PDF.ObfuscatedNameObject
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.

Extracted artifacts 1

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`javascript_obj0010_000.js` `ed31b16df2b6492a4d5be85b534deca964c2f0e07a8443782787f4ed9c62c93c`	pdf-javascript-stream	PDF /JS object 10 at offset 0x1303	3192 bytes

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