Malicious PDF / .COM — malware analysis report

Static analysis result for SHA-256 404b300b5447a2d7…

MALICIOUS

PDF / .COM

3.4 KB
MD5: 3fd9fa1d8ec41964bcb2089a530bb197 SHA-1: d54f8f9dece012ba5798657669f5f04cd466b7d9 SHA-256: 404b300b5447a2d796ba964b45f44e9b9fd0a3aaa74d30a443e0c5eba6d83be2
78 Risk Score

Malware Insights

MITRE ATT&CK
T1203 Exploitation for Client Execution

The PDF file contains an embedded XFA form and utilizes the ASCII85Decode filter, which are indicators of exploitation. Specifically, the critical heuristic firing for CVE-2010-0188 confirms the exploitation of a vulnerability in Adobe Reader via an inline XFA image payload. This suggests the file is designed to execute arbitrary code upon opening in a vulnerable reader.

Heuristics 4

  • Adobe Reader LibTIFF XFA image exploit — CVE-2010-0188 critical CVE likely CVE_2010_0188
    PDF contains XFA image data with an inline crafted TIFF payload and shellcode/delivery markers. This is the data-bound variant of the CVE-2010-0188 Adobe Reader LibTIFF/XFA exploit shape.
  • XFA form low PDF_XFA
    PDF uses XML Forms Architecture — can contain script logic
  • ASCII85Decode filter (with exploit indicators) low PDF_FILTER_85
    ASCII85 encoding filter present alongside exploit delivery indicators — uncommon outside of obfuscation
  • 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
stream_000_off000001e9.bin
679c06463ce89fe05e24e8efeb5b450e8a08d10a1fa29d164db056d84d190be7
decompressed-pdf-stream PDF FlateDecoded stream at offset 0x1E9 13469 bytes
Detection
ClamAV: No threats found
Obfuscation or payload: likely
Carved artifact contains 1 long base64-like blob(s).