Malicious PDF — malware analysis report

Static analysis result for SHA-256 8e644aefc6748a31…

MALICIOUS

PDF

5.5 KB Created: qHFdTlfA Authoring application: gfhersdd
MD5: 7d15f6c93c82966072f7485245baee51 SHA-1: e06c3f19b15a519ab9530f4c2ca579cb03b7f8b6 SHA-256: 8e644aefc6748a316525895a84b84561e7cf0be8806ebefdee12fa815f42f48c
80 Risk Score

Malware Insights

MITRE ATT&CK
T1203 Exploitation for Client Execution

The PDF file contains an embedded stream that triggers the CVE-2010-0188 exploit in Adobe Reader. This exploit allows for arbitrary code execution on the victim's machine. No document body text was available for further analysis, but the critical heuristic firing strongly indicates exploitation.

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
8874a9f68d77fae99ed8b4fc734d0bb51885e2ae0d332862c79629280b4bfde0
decompressed-pdf-stream PDF FlateDecoded stream at offset 0x2E7 59500 bytes
Detection
ClamAV: No threats found
Obfuscation or payload: likely
Carved artifact contains 1 long base64-like blob(s).