Malicious PDF — malware analysis report

Static analysis result for SHA-256 2cc711b4dd744be5…

MALICIOUS

PDF

19.0 KB
MD5: 716df50908c10e66ae6499ffe2578b97 SHA-1: 14ce09a478ecfb8cf6de0b9065487ab756602120 SHA-256: 2cc711b4dd744be5ecc15e5e48bc9f8e2b916a61bfc8cc9af82cfbfc450d8778
96 Risk Score

Malware Insights

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

The PDF file was detected by ClamAV as 'Pdf.Exploit.Dropped-78', indicating it contains an exploit. The presence of an embedded script payload and an embedded file further supports its malicious nature. The document body content is obfuscated and does not provide clear user-facing lures, suggesting the exploit is the primary attack vector.

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
1d75107726ee2ce2e13afd2cc8eb70fe03832c5364676760e087667fb25a5e4e
pdf-embedded-file PDF EmbeddedFile object 8 at offset 0xC8 18694 bytes