Malicious PDF — malware analysis report

Static analysis result for SHA-256 581117433dcc8ed3…

MALICIOUS

PDF

3.8 KB Authoring application: rxode (via va)
MD5: 786dbbd4b0bc2061bcd610a7c4f4dfab SHA-1: 89c29fb42f5f8ed1080b23bc9df947218c0d5607 SHA-256: 581117433dcc8ed3e9280cb02ae10a9487ae3e7e6b46b2a21ab309eb30a6bc2d
98 Risk Score

Malware Insights

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

The PDF file contains an embedded object and triggers a critical heuristic for CVE-2010-0188, indicating an exploit targeting Adobe Reader's LibTIFF component. This suggests the document is designed to deliver a malicious payload upon opening. No scripts were extracted, but the embedded artifact and exploit indicate a downloader or dropper functionality.

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
aabd1c77ac825b168e63aadfcece20aee924392c6c4b468ca32a3fddd788ce71
pdf-embedded-file PDF EmbeddedFile object 41 at offset 0x53 9816 bytes
Detection
ClamAV: No threats found
Obfuscation or payload: likely
Carved artifact contains 1 long base64-like blob(s).