Malicious PDF — malware analysis report

Static analysis result for SHA-256 50c75719aa51829e…

MALICIOUS

PDF

4.4 KB
MD5: 20f28e63a43ac32bbb15e9fcfcc1c3d2 SHA-1: beb0ee1b08c388f10f6abf4c63aa330045d1bf27 SHA-256: 50c75719aa51829ea485b7e87d617600737ac95261bf367ca8fdb1221fcd37fc
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, indicating it's designed to execute arbitrary code. The exploit targets a vulnerability in Adobe Reader's handling of LibTIFF XFA images. The presence of ASCIIHexDecode and ASCII85Decode filters further suggests obfuscation of malicious content. The primary attack vector is exploitation for client 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
797bfb89f65c5a0f996399a213e85d21448f4c9f8ae0acc9b715cc5af888f0b2
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).