Malicious PDF — malware analysis report

Static analysis result for SHA-256 dd689dbb577764f4…

MALICIOUS

PDF

117.1 KB
MD5: 7f775d0592dee853fd38e39c3407a3b6 SHA-1: ffca6aa5303915ffc712c9a030b5317befa9cb5f SHA-256: dd689dbb577764f4242a138df5d637ecae91e8d531ce408b55bb3ccf1d441fa7
80 Risk Score

Malware Insights

MITRE ATT&CK
T1203 Exploitation for Client Execution T1059.001 PowerShell

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, likely to download and run a second-stage payload. The embedded file 'embedded_file_obj0001.bin' is also suspicious and likely contains the malicious payload.

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
c0acbd28cf23ee9662060f41d84945e9963f30d4fb495e5ad37deea29a85f192
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).