PDF malware analysis — malicious · b9d640da87d88d3d

MALICIOUS

PDF

144.1 KB

MD5: 5d5db0798664717dcf037225d0eb33f8 SHA-1: 28121afeabf99d36e7f907b58fbae222d305450f SHA-256: b9d640da87d88d3d30ca4bca23321e03ca3f25fb4c6d211eb7062cf38be66f6b

106 Risk Score

Malware Insights

MITRE ATT&CK

T1204.002 Malicious File: User Execution: Malicious File T1059.001 Command and Scripting Interpreter: PowerShell

The PDF file contains embedded JavaScript and U3D content, triggering heuristics related to JavaScript execution and a CVE-family vulnerability in Adobe Reader's 3D parser. The embedded JavaScript stream, named 'javascript_obj0015_000.js', is likely responsible for the malicious activity. The presence of U3D content at offset 0x407 further indicates an exploit attempt targeting this feature. The document body is heavily obfuscated and does not provide clear textual lures.

Heuristics 6

U3D/3D content in PDF — Adobe Reader 3D parser CVE-family indicator high CVE related PDF_U3D_CVE_RELATED

PDF contains U3D (Universal 3D) or 3D annotation content — CVE-2011-2462 and CVE-2009-3953 are critical vulnerabilities in Adobe Reader's U3D processing that allow arbitrary code execution. U3D content in PDFs is extremely rare in normal documents.
unescape() call high PDF_UNESCAPE

unescape() found — often used to decode shellcode in PDF JS exploits (matched inside decoded stream)
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.
XFA form low PDF_XFA

PDF uses XML Forms Architecture — can contain script logic
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 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`javascript_obj0015_000.js` `a528cd1a05d8b626ccb49f003c3aca3425ff380d144d17c94c842fe81d57973e`	pdf-javascript-stream	PDF /JS object 15 at offset 0x897	10791 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 2 eval/decoder/string-building token(s). Carved artifact contains 3 long base64-like blob(s).
`u3d_00_off00000440.bin` `db47f9e6c2fa22cca9aaaaba842bc1035f54c0acd3737dbd64b69dc1671da5eb`	pdf-3d-stream	PDF U3D 3D stream at offset 0x440	1268 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.