Malicious PDF — malware analysis report

Static analysis result for SHA-256 bb77fee17535ffeb…

MALICIOUS

PDF

4.4 KB
MD5: 314830a25674327a942aa1a62f18c83d SHA-1: 3856f87898c275ccc04a0710cb74a1654a6e72d6 SHA-256: bb77fee17535ffebc237b4459f8b6ba81aa876e158a5cbf4ad62f2a4e1521911
98 Risk Score

Malware Insights

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

The PDF file contains an XFA form and utilizes ASCIIHexDecode and ASCII85Decode filters, which are indicators of exploit activity. Specifically, the 'CVE_2010_0188' heuristic firing confirms the presence of an exploit targeting Adobe Reader's LibTIFF component. This exploit is designed to achieve arbitrary code execution, commonly used to download and execute further malicious content. No scripts were extracted, and the document body was unreadable, but the exploit itself is the primary indicator of malicious intent.

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
5aba0b0c61ad00eccf59da8c69157839f287b4ff1de5039dc9dbf2f457d1d1b8
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).