Malicious PDF — malware analysis report

Static analysis result for SHA-256 7df188568f868889…

MALICIOUS

PDF

12.1 KB
MD5: 8a34748316746cbdc9447bc64186d8e2 SHA-1: 194fbf1cf2930e3e54ee7009398f6b6129972a32 SHA-256: 7df188568f86888950dfd38e666ce8eea6b3b167b5fd20af7bffc267d792a67a
96 Risk Score

Malware Insights

MITRE ATT&CK
T1204.002 Malicious File T1566.002 Spearphishing Attachment

The PDF file contains embedded content and a script payload, as indicated by the PDF_EMBEDDED and PDF_EMBEDDED_SCRIPT_PAYLOAD heuristics. ClamAV detection as Pdf.Exploit.Dropped-78 strongly suggests malicious intent. The embedded file and script are likely used to download and execute a second-stage payload, although the specific mechanism is not detailed in the provided evidence.

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
a03c3973818fb7e8de3b575a8af36cbf4a080beb12075e53302b69df5c920b4d
pdf-embedded-file PDF EmbeddedFile object 8 at offset 0xC8 11660 bytes