Malicious PDF — malware analysis report

Static analysis result for SHA-256 25e11f597b98e99c…

MALICIOUS

PDF

8.3 KB Created: eval Authoring application: gfhersdd
MD5: 6a5d11951e09b35574a7b84e6ebbd64e SHA-1: b8d530e365d8debe3760e7983ebc85daa48ed158 SHA-256: 25e11f597b98e99c065bea46ffbc2c6cada1c92f8c27e8545584d2512ebed6b6
80 Risk Score

Malware Insights

MITRE ATT&CK
T1203 Exploitation for Client Execution

The PDF file contains a critical heuristic indicating exploitation of CVE-2010-0188, a known vulnerability in Adobe Reader related to XFA forms. This exploit allows for arbitrary code execution, suggesting the file's primary purpose is to compromise the user's system. The embedded artifact, stream_002_off000002e7.bin, likely contains the secondary payload.

Heuristics 5

  • Adobe Reader LibTIFF XFA image exploit — CVE-2010-0188 critical CVE likely CVE_2010_0188
    PDF contains the CVE-2010-0188 exploit template: XFA JavaScript heap-spray setup, a generated TIFF image payload, and assignment of that TIFF data to an XFA image field rawValue to trigger Adobe Reader's LibTIFF parser.
  • 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: PDFSyntaxError. 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
stream_002_off000002e7.bin
41fe5d64dca0ac9a3301c56433fdfac41dd02ca3e2608f41eaf89e04a3416164
decompressed-pdf-stream PDF FlateDecoded stream at offset 0x2E7 50669 bytes
Detection
ClamAV: No threats found
Obfuscation or payload: likely
Carved artifact contains 1 long base64-like blob(s).