Malicious PDF — malware analysis report

Static analysis result for SHA-256 eb8def5c3eb19da7…

MALICIOUS

PDF

3.8 KB Authoring application: rxode (via va)
MD5: e68dd4a713e1ed6edaba0921e2f06b07 SHA-1: ba6a678f7ef22d637b82d11fcbeee82af9bf0475 SHA-256: eb8def5c3eb19da709bced1c269bfec3be96ddda1641e681a75b75f976fb080a
100 Risk Score

Malware Insights

MITRE ATT&CK
T1204.002 Malicious File T1566.001 Spearphishing Attachment T1204 User Execution

The PDF file contains an embedded XFA form that triggers the CVE-2010-0188 exploit in Adobe Reader. This exploit is known to facilitate arbitrary code execution, typically for downloading and running a second-stage payload. No document body text was available for analysis, but the critical heuristic confirms the exploit's presence.

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
0230cf48ab9dd4c3d95d6467ade428ef1eb970e1729b140906d4b471102edccb
pdf-embedded-file PDF EmbeddedFile object 41 at offset 0x53 9569 bytes
Detection
ClamAV: No threats found
Obfuscation or payload: likely
Carved artifact contains 1 long base64-like blob(s).