Malicious PDF — malware analysis report

Static analysis result for SHA-256 59998b3d6cbaa10d…

MALICIOUS

PDF

18.9 KB
MD5: 6a1033c50daff0f1fe6b23b17328988c SHA-1: c7ea4a881979a33b46632c7a5bd97789870d12bd SHA-256: 59998b3d6cbaa10ded1c467f690318e3e91b5c8c794e5f59f61461dae5e3ae4d
96 Risk Score

Malware Insights

MITRE ATT&CK
T1204.002 Malicious File: User Execution: Malicious PDF

The PDF contains embedded content and an embedded script payload, strongly indicating malicious intent. ClamAV detection as 'Pdf.Exploit.Dropped-78' further confirms this. The embedded script likely attempts to download and execute a second-stage payload, a common technique for PDF-based malware delivery. The presence of XFA form elements also suggests a potential vector for exploit execution.

Heuristics 5

  • ClamAV: Pdf.Exploit.Dropped-78 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Exploit.Dropped-78
  • 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
e44fce67eacb6b489b04464dac938327681f1e156a9ed190fba9c378cbd72d81
pdf-embedded-file PDF EmbeddedFile object 8 at offset 0xC8 18625 bytes