Malicious PDF — malware analysis report

Static analysis result for SHA-256 58efb3cb1c27a90f…

MALICIOUS

PDF

49.9 KB
MD5: 7fe6913bc6ea45842d2b1882e28cde64 SHA-1: e0252b309c4312f57a0e97faec816a1d0f93811d SHA-256: 58efb3cb1c27a90fa31bc2d4be1e732e668644b774242f7a0ce127ae6097e5dc
136 Risk Score

Malware Insights

MITRE ATT&CK
T1204 Malicious Link T1204.002 Malicious File T1059 Command and Scripting Interpreter T1059.007 JavaScript/JScript

The PDF file contains embedded XFA forms with risky executable scripts, as indicated by multiple high-severity heuristic firings. The embedded script payload is likely designed to exploit a vulnerability within the PDF viewer, leading to the execution of malicious code. The ClamAV detection 'Pdf.Exploit.Dropped-93' further supports this assessment. No specific malware family could be confidently identified.

Heuristics 6

  • 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.
  • ClamAV: Pdf.Exploit.Dropped-93 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Exploit.Dropped-93
  • 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
  • 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.

FilenameKindSourceSize
embedded_file_obj0008.bin
a3d984a12883a91042ae22a4983753e68818234f761b224e74691079f965ba23		 pdf-embedded-file PDF EmbeddedFile object 8 at offset 0xC6 50352 bytes

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