PDF malware analysis — malicious · 7fad9fbb5198146a

MALICIOUS

PDF

35.2 KB

MD5: 5e304e25d06777c5a5587d0b133968be SHA-1: 550b233e8d6e6ff599f99d7adfe8f401c74b7646 SHA-256: 7fad9fbb5198146ad4593dc996b816ddde9d5064fdc5da63f39f730f633ef39b

102 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1559.001 Component Object Model Hijacking T1204.002 Malicious File

The PDF file contains embedded JavaScript and a RichMedia (Flash) object, indicated by multiple heuristic firings. The presence of `String.fromCharCode` and ASCIIHexDecode filters suggests obfuscation and potential exploit code. The embedded JavaScript stream and the Adobe.swf file are suspicious artifacts. The primary purpose appears to be the execution of malicious code, likely through exploiting vulnerabilities in the PDF reader or Flash player, or by leveraging the embedded scripts to download further payloads.

Heuristics 9

RichMedia (Flash) high PDF_RICHMEDIA

PDF contains /RichMedia (Adobe Flash) which is a historic exploit vector
ASCIIHexDecode filter (with exploit indicators) medium PDF_FILTER_HEX

Hex-encoding filter present alongside exploit delivery indicators — often used to hide payload or shellcode bytes
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
XFA form low PDF_XFA

PDF uses XML Forms Architecture — can contain script logic
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)
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.
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://ns.adobe.com/xdp/
- http://www.xfa.org/schema/xci/2.6/
- http://www.xfa.org/schema/xfa-template/2.6/

Extracted artifacts 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`Adobe.swf` `8f9c84c8c00bc62ae296a81fac6640aa852ea67548abc1bd639aa0da1a1696c4`	pdf-embedded-file	PDF EmbeddedFile object 16 at offset 0xE47	27347 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact entropy is 7.99, consistent with packed or encrypted content.
`javascript_obj0006_000.js` `3b86e20e6f82e4663cf912d7a7a9d43b401051b8fdbba3b14a177ba0cff77d53`	pdf-javascript-stream	PDF /JS object 6 at offset 0x105	10500 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 2 eval/decoder/string-building token(s).

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