Malicious PDF — malware analysis report

Static analysis result for SHA-256 77dc15fd8cede8b0…

MALICIOUS

PDF

23.6 KB Created: eval Authoring application: gfhersdd
MD5: 0ee18f290dda6e310f7a4a6e317d5965 SHA-1: adea495959abcd92af8d8a70a78e0f8ef4e44b53 SHA-256: 77dc15fd8cede8b0353a980f53e248d8ae1235a5bae9dace030aa9e334758ff1
80 Risk Score

Malware Insights

MITRE ATT&CK
T1203 Exploitation for Client Execution

The PDF file contains an embedded XFA form that triggers the CVE-2010-0188 exploit in Adobe Reader. This exploit allows for the execution of arbitrary code, indicating a malicious intent to compromise the user's system. No specific malware family was identified, but the exploit is the primary indicator of compromise.

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
d980db416a918cfcdf9aba5611104480efeb24af9aeb0e0e947ae873a453d85b
decompressed-pdf-stream PDF FlateDecoded stream at offset 0x2E7 50029 bytes
Detection
ClamAV: No threats found
Obfuscation or payload: likely
Carved artifact contains 1 long base64-like blob(s).