Malicious PDF — malware analysis report

Static analysis result for SHA-256 aa6fff9841811e4e…

MALICIOUS

PDF

2.6 KB
MD5: 5d991a9eb47db55414346a006d62795f SHA-1: 3e4a22a7e82f36f69d884639f91cb9ebab5dd3ce SHA-256: aa6fff9841811e4ec30daf0a079d3f960a4a09775ac52d5cd174d2fb4fd516d1
138 Risk Score

Malware Insights

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

The PDF file contains an embedded object that triggers the CVE-2010-0188 exploit, a known vulnerability in Adobe Reader related to XFA forms and TIFF image parsing. This exploit is designed to allow arbitrary code execution. The embedded file, 'embedded_file_obj0001.bin', is highly suspicious and likely contains the second-stage payload. The ClamAV detection 'Pdf.Exploit.Dropped-90' further confirms its malicious nature. No scripts were extracted, but the exploit itself indicates a downloader or dropper functionality.

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.
  • ClamAV: Pdf.Exploit.Dropped-90 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Exploit.Dropped-90
  • 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
  • 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
0ca60340a7ba937037ace8ff5c715abdf4f70a4fa78aaf9912e2c054db411c52
pdf-embedded-file PDF EmbeddedFile object 1 at offset 0x5D 13473 bytes
Detection
ClamAV: No threats found
Obfuscation or payload: likely
Carved artifact contains 1 long base64-like blob(s).