PDF malware analysis — malicious · 5c0156eb406544d0

MALICIOUS

PDF

373.6 KB Authoring application: Python PDF Library 055 http072057057pybrary056net057pyPdf057

MD5: 0178beb41be2153b780574889eecc192 SHA-1: c6e18c3f4a08d59399c37316cdecfbd18e0a9b3b SHA-256: 5c0156eb406544d0e1e508a03105bf68888b3ee3030dea8af523e5a89a258632

156 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains embedded JavaScript and a RichMedia (Flash) object, along with a secondary embedded PDF. These components strongly suggest an attempt to exploit vulnerabilities or execute malicious code. The presence of embedded files and JavaScript points towards a multi-stage attack, likely initiated via spearphishing, aiming to download and execute further malicious content.

Machine Learning

Nyx PDF Classifier malicious score 1.0000

Heuristics 6

Secondary embedded PDF body has suspicious static findings critical POLYGLOT_CHILD_PDF_STATIC_TRIAGE

A valid PDF body was found at a nonzero offset inside another container and its carved contents matched PDF exploit or lure heuristics. This catches polyglots where the top-level magic routes to ZIP/OLE while a PDF reader or downstream parser opens the hidden PDF payload.
RichMedia (Flash) high PDF_RICHMEDIA

PDF contains /RichMedia (Adobe Flash) which is a historic exploit vector
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.
Embedded file low PDF_EMBEDDED

PDF embeds a file attachment — could carry an executable or another weaponised document as a nested payload
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://adobe.com/AS3/2006/builtin

Extracted artifacts 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`pushpro.swf` `3f8e0576de2e9af38360a78e3ca79d41fb9060cefdb628cb69589ea03d1d3358`	pdf-embedded-file	PDF EmbeddedFile object 7 at offset 0xB4F	772 bytes
`polyglot_child_pdf_off0005bdf3.pdf` `5d72bdd96e017974cf748136615ba1663fae4412194dc7463231bd530e5ec67a`	polyglot-child-pdf	Secondary PDF body inside pdf container at offset 0x5BDF3	6297 bytes

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