PDF malware analysis — malicious · 2fc9526c9a5553e1

MALICIOUS

PDF

29.7 KB

MD5: 46e1fe15c576d6f8be6301d934953b47 SHA-1: 7659dbbe469d43ba97f624e53e68cf3a204f6985 SHA-256: 2fc9526c9a5553e19b2f2a6a3e36ec7f77361588c4bf30d43fc5937200b971d0

202 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1204.002 Malicious File

The PDF file contains embedded JavaScript and a RichMedia (Flash) object, strongly indicating an exploit attempt. ClamAV detections of 'Pdf.Exploit.Agent-35955' on both the main file and an extracted artifact confirm its malicious nature. The embedded JavaScript, though obfuscated, is likely responsible for downloading and executing a secondary payload, aligning with common exploit delivery techniques. The presence of XFA forms and string.fromCharCode further supports the exploit vector.

Heuristics 10

ClamAV: Pdf.Exploit.Agent-35955 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Exploit.Agent-35955
ClamAV detection on extracted artifact critical EXTRACTED_FILE_CLAMAV

ClamAV flagged at least one file extracted from inside this sample. Even when the wrapping document carries no AV detection of its own, a hit on the carved artifact is a strong indicator the sample is a delivery vehicle.
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
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
`embedded_file_obj0016.bin` `155cb1ff00e6c687a380ad31d1ca035be4d34d8d46179a65e733a7fef7b99805`	pdf-embedded-file	PDF EmbeddedFile object 16 at offset 0x8D4	53922 bytes
Detection ClamAV: Pdf.Exploit.Agent-35955 Obfuscation or payload: unlikely
`javascript_obj0006_000.js` `022df7c3c9566545caf13af53dc491ae3e319e0018e453c37a6c1738d3714169`	pdf-javascript-stream	PDF /JS object 6 at offset 0x106	11750 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 239 eval/decoder/string-building token(s).

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