Malicious PDF — malware analysis report

Static analysis result for SHA-256 c202385c32304059…

MALICIOUS

PDF

3.8 KB Authoring application: rxode (via va)
MD5: 47fa922b475ad09581fb8123c85b212b SHA-1: 3a0b2e0fa41ad6a920ea52b11ba0896ca1c59607 SHA-256: c202385c3230405949f550aa34fc1fcc2199eecdec9dbd661e82da380b8c9df3
98 Risk Score

Malware Insights

MITRE ATT&CK
T1203 Exploitation for Client Execution T1059.001 PowerShell

The PDF file contains an embedded XFA form that triggers the CVE-2010-0188 vulnerability in Adobe Reader. This exploit allows for arbitrary code execution. No scripts were extracted, and the document body was unreadable, but the critical heuristic confirms the exploit's presence and target.

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
70099dc2e8f56f44629c5649194eb29fd43f0c3979a83a5dd460384ebaa25187
pdf-embedded-file PDF EmbeddedFile object 41 at offset 0x53 9799 bytes
Detection
ClamAV: No threats found
Obfuscation or payload: likely
Carved artifact contains 1 long base64-like blob(s).