PDF malware analysis — malicious · e2a3347f2910b814

MALICIOUS

PDF

16.3 KB

MD5: 07df3d6cf91dc6469087ad5190433272 SHA-1: 9d99502a58e363a67c4e6e194637886c96a74a46 SHA-256: e2a3347f2910b814c55cd3a5917bfbc59a320ac54ab00e56fdfbeb2204fac116

64 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1204.002 Malicious File

The PDF file contains embedded JavaScript, indicated by multiple heuristic firings including PDF_JAVASCRIPT, PDF_JS, and PDF_EVAL. The eval() call suggests dynamic code execution within the PDF viewer. While no specific URLs were found to be malicious, the presence of obfuscated JavaScript points to a likely attempt to download and execute a secondary payload. The document body was unreadable, preventing further context.

Heuristics 5

eval() call high PDF_EVAL

eval() found — commonly used for obfuscated exploit execution (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. (matched inside decoded stream)
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. (matched inside decoded stream)
String.fromCharCode low PDF_FROMCHARCODE

String.fromCharCode found — used to construct payload strings dynamically. Common in benign JavaScript libraries for codepoint manipulation, so this alone is informational; weaponised use is also caught by the dedicated fromCharCode-stage and exploit-shape rules. (matched inside decoded stream)
Embedded URL info EMBEDDED_URL

One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
URL http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://ns.adobe.com/xap/1.0/
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/xap/1.0/mm/

Extracted artifacts 4

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`stream_004_off000004b5.bin` `4447bc3bf2370788a868beaf4e818cbde6061d04686c8a8695d700584551fe2b`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x4B5	4794 bytes
`objstm_0013_00.bin` `3ec841b01a1bb1aa700b49a4f383b3c25444c501028558ea845e84b840f95f4d`	pdf-objstm-decoded	PDF /ObjStm 13 0 obj (inflated)	171 bytes
`objstm_0022_00.bin` `a92747d747f22f515169556b020ee478e8bc8240eb1b1c812ec6d5c4463ac2ec`	pdf-objstm-decoded	PDF /ObjStm 22 0 obj (inflated)	32 bytes
`objstm_0026_00.bin` `5a15614ebab0db9b0da45a82154f672c2bc490f73fc030a289823582a52a076c`	pdf-objstm-decoded	PDF /ObjStm 26 0 obj (inflated)	32 bytes

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