PDF malware analysis — malicious · 263adf00f7372c0d

MALICIOUS

PDF

67.7 KB

MD5: 63288c6be4f8d0aa6a7f8786b2d0f064 SHA-1: 952bb05f490ffb53cc2614307562bd7d17fa9607 SHA-256: 263adf00f7372c0d0a8efe4b3f7e7fb770076ce3acd56c11aabc03fb60f236fb

118 Risk Score

Malware Insights

MITRE ATT&CK

T1204.002 Malicious File T1566.001 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains embedded content and risky executable scripts, indicated by PDF_EMBEDDED and PDF_XFA_SCRIPT heuristics. The presence of an unescape() call suggests obfuscation or exploitation of JavaScript vulnerabilities within the PDF. The embedded file 'embedded_file_obj0008.bin' is a primary artifact of interest. While the specific intent of the script is not fully discernible due to potential obfuscation, it likely aims to deliver a secondary payload.

Heuristics 7

XFA form contains risky executable script high CVE related PDF_XFA_SCRIPT

PDF embeds an XFA form whose script block contains exploit, submission/launch, or shell-execution primitives. Ordinary LiveCycle print/update scripts are left as generic XFA/JS signals unless stronger behavior is present.
unescape() call high PDF_UNESCAPE

unescape() found — often used to decode shellcode in PDF JS exploits
Embedded script payload in PDF stream medium PDF_EMBEDDED_SCRIPT_PAYLOAD

PDF stream bytes contain an HTML/XFA <script> tag without accompanying Windows shell-execution primitives — common in accessible XFA forms but worth surfacing for analyst review.
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
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/xfa-template/2.5/
- http://www.xfa.org/schema/xfa-data/1.0/

Extracted artifacts 1

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`embedded_file_obj0008.bin` `e72155041a45e6d418957c6e074d0374a96b81a55c694d97888efe9057709d1a`	pdf-embedded-file	PDF EmbeddedFile object 8 at offset 0xC6	68552 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 1 eval/decoder/string-building token(s).

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