Malicious PDF — malware analysis report

Static analysis result for SHA-256 b862e14c01a0ea8b…

MALICIOUS

PDF

3.8 KB Authoring application: rxode (via va)
MD5: 98297ebc0a884ac2da58dc11ef33dae8 SHA-1: 33a065ff85fd9a5163e73c8acfcb5cc27ce8c84e SHA-256: b862e14c01a0ea8b04731631241afbe34d2418de7ea18d2637e056593e42a05a
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 exploit in Adobe Reader. This exploit allows for arbitrary code execution, likely to download and execute a second-stage payload. The embedded artifact 'embedded_file_obj0041.bin' is suspicious and warrants further investigation.

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
89d8d9fa9cb869927790d2d35817a12b6726ca02e52e59fca3c84e64934b2fb6
pdf-embedded-file PDF EmbeddedFile object 41 at offset 0x53 9599 bytes
Detection
ClamAV: No threats found
Obfuscation or payload: likely
Carved artifact contains 1 long base64-like blob(s).