Malicious PDF — malware analysis report

Static analysis result for SHA-256 ff827b7d783b9d0d…

MALICIOUS

PDF

4.4 KB
MD5: 71ca48324018c863e681a875ba285428 SHA-1: 877592c9837293d2227f57c4d290c59b2ae6ebe8 SHA-256: ff827b7d783b9d0d4ed092916fee56e97dbc192440324b77276430244200e537
98 Risk Score

Malware Insights

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

The PDF file contains an XFA form and triggers the CVE-2010-0188 exploit, which targets a vulnerability in Adobe Reader's handling of LibTIFF images within XFA forms. This exploit allows for the execution of arbitrary code. The presence of ASCIIHexDecode and ASCII85Decode filters further indicates obfuscation commonly used in exploit delivery. The primary attack vector is the exploitation of this known vulnerability to achieve initial code execution.

Heuristics 5

  • 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.
  • ASCIIHexDecode filter (with exploit indicators) medium PDF_FILTER_HEX
    Hex-encoding filter present alongside exploit delivery indicators — often used to hide payload or shellcode bytes
  • 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_off00000207.bin
608e28bb31d8fe19ecde5ab9d39f97b2732eefafe021436f66b46ea8bb644955
decompressed-pdf-stream PDF FlateDecoded stream at offset 0x207 13469 bytes
Detection
ClamAV: No threats found
Obfuscation or payload: likely
Carved artifact contains 1 long base64-like blob(s).