Malicious PDF — malware analysis report

Static analysis result for SHA-256 29ba668c677f346d…

MALICIOUS

PDF

4.0 KB
MD5: 5717d4a03c2caafd549f8663a411e808 SHA-1: 36b3fba7d95bfe7f7c81fbe3938b489e9bac7ff6 SHA-256: 29ba668c677f346d7e18a502a5df9cd55165d59de8b7738cb4119f62ad5fb468
100 Risk Score

Malware Insights

MITRE ATT&CK
T1204.002 Malicious File: User Execution T1559.001 Component Object Model Hijacking

The PDF file contains an embedded exploit targeting CVE-2010-0188, a vulnerability in Adobe Reader related to LibTIFF XFA image processing. This exploit is designed to execute arbitrary code when the document is opened. The presence of an embedded file and the use of ASCIIHexDecode filters further indicate malicious intent.

Heuristics 6

  • 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
  • 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
  • PDF differential parser failed info PDF_DIFFERENTIAL_PARSE_FAILED
    The cross-check parser (pdfminer.six) failed on this file: PDF differential parser failed: PSEOF. Static heuristics still ran and any of their findings above are valid; only the differential cross-check signal is missing.
  • 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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
embedded_file_obj0001.bin
b6a85bbe87ea1226e0a2d6436f3e6474d4c681deff006a816d3c242ef1a223ae
pdf-embedded-file PDF EmbeddedFile object 1 at offset 0x6A 12277 bytes
Detection
ClamAV: No threats found
Obfuscation or payload: likely
Carved artifact contains 1 long base64-like blob(s).
embedded_file_obj0010.bin
8af81ed8eb133b8dbc92f16ee731a72b4418c73f308df25baea192d921e616d2
pdf-embedded-file PDF EmbeddedFile object 10 at offset 0x8D7 256 bytes
embedded_file_obj0011.bin
1ec003358e39ff3720576731648bc27b401545d48a7f891b1ba89b07a92261c9
pdf-embedded-file PDF EmbeddedFile object 11 at offset 0xB35 734 bytes
embedded_file_obj0012.bin
422a5430698c54d7acba092e1350d18143964b54c5496415f1d8f31cbbcf0663
pdf-embedded-file PDF EmbeddedFile object 12 at offset 0xD30 332 bytes