Malicious PDF — malware analysis report

Static analysis result for SHA-256 bf199044dae52a02…

MALICIOUS

PDF

3.9 KB Authoring application: rxode (via va)
MD5: 9e117e64ee01a36ca345edf6c3cff039 SHA-1: ec98bbc633bf7ad57acac6eaf213d6ea70cc0973 SHA-256: bf199044dae52a0289e7060b365c96f48389bf21016991a31ad5d2ec417ce952
98 Risk Score

Malware Insights

The PDF file contains an embedded script payload and triggers the CVE-2010-0188 exploit, indicating it is designed to deliver a malicious payload upon opening in a vulnerable application. The exploit targets Adobe Reader's handling of XFA forms, specifically related to LibTIFF processing. The embedded file 'embedded_file_obj0041.bin' is likely the secondary payload.

Heuristics 5

  • Adobe Reader LibTIFF XFA image exploit — CVE-2010-0188 critical CVE likely CVE_2010_0188
    PDF contains the CVE-2010-0188 exploit template: XFA JavaScript heap-spray setup, a generated TIFF image payload, and assignment of that TIFF data to an XFA image field rawValue to trigger Adobe Reader's LibTIFF parser.
  • 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.

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
embedded_file_obj0041.bin
0b67fa9532793e234f599d1d4a2440bdb8e5c1d304d8b5ba2987c2473819a041
pdf-embedded-file PDF EmbeddedFile object 41 at offset 0x53 9852 bytes
Detection
ClamAV: No threats found
Obfuscation or payload: likely
Carved artifact contains 1 long base64-like blob(s).