Malicious PDF — malware analysis report

Static analysis result for SHA-256 e88361b4b82f76e9…

MALICIOUS

PDF

3.9 KB Authoring application: rxode (via va)
MD5: 017e14ceed5b2da4291d615aa95d0ac0 SHA-1: 6c4d5cad3acad5e286d7e413cd71db54ca00bed3 SHA-256: e88361b4b82f76e939ea4e9306257f6f92d08507a2d78286716b384e3571f49f
98 Risk Score

Malware Insights

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

The PDF file contains an embedded script payload and triggers the CVE-2010-0188 exploit for Adobe Reader. This exploit allows for arbitrary code execution, likely to download and run a second-stage payload. The embedded file 'embedded_file_obj0041.bin' is also suspicious.

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
427ab6c2d5a844640207fbcf3317dc5ae50b3a0fc5fccd6212b4aace14f58cd5
pdf-embedded-file PDF EmbeddedFile object 41 at offset 0x53 9867 bytes
Detection
ClamAV: No threats found
Obfuscation or payload: likely
Carved artifact contains 1 long base64-like blob(s).