Malicious PDF — malware analysis report

Static analysis result for SHA-256 7a8c7fa86f8deb0c…

MALICIOUS

PDF

57.2 KB
MD5: f058caad59b3f54626ad762f36b1eac0 SHA-1: 3e6bddcc452a81b09c05c95e6ec86714e2b82cc5 SHA-256: 7a8c7fa86f8deb0c00ec42018b49e91cf8ef10288aa822d478acac1e1d785c0e
80 Risk Score

Malware Insights

MITRE ATT&CK
T1204.002 Malicious File T1204.001 Malicious Link T1059.001 PowerShell

The sample is a PDF file that contains an embedded file and triggers the CVE-2010-0188 exploit. This indicates that the document is designed to leverage a known vulnerability in Adobe Reader to gain execution. The embedded file is likely a secondary stage payload. The XFA form suggests a more complex document structure intended to facilitate exploitation.

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.
  • 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: PSSyntaxError. 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 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
embedded_file_obj0001.bin
5cef019c1335cf413c3b764f8bf6d3d305a45c6872e36866b22ef0163fce9c50
pdf-embedded-file PDF EmbeddedFile object 1 at offset 0x51 13430 bytes
Detection
ClamAV: No threats found
Obfuscation or payload: likely
Carved artifact contains 1 long base64-like blob(s).