Malicious PDF — malware analysis report

Static analysis result for SHA-256 1dd031e2fa990c77…

MALICIOUS

PDF

3.8 KB Authoring application: rxode (via va)
MD5: ec313620b99b4b964f43d1b16c64f614 SHA-1: 4443b46e6796f9746a7e863f117ca6962e7d3d6a SHA-256: 1dd031e2fa990c77185e0bac9eaaea573ba648acbc5db0f76c7410d17f4742e8
100 Risk Score

Malware Insights

MITRE ATT&CK
T1203 Exploitation for Client Execution

The PDF file contains an embedded XFA form that triggers a critical heuristic for CVE-2010-0188, indicating an exploit targeting Adobe Reader. The embedded file and script payload further suggest the execution of malicious code. The exploit is likely used to download and execute a second-stage 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
153edab3eec24e42c3b359b343a0fdf61022f3fd3cb2d62d37b21887cc7bee53
pdf-embedded-file PDF EmbeddedFile object 41 at offset 0x53 9817 bytes
Detection
ClamAV: No threats found
Obfuscation or payload: likely
Carved artifact contains 1 long base64-like blob(s).