Malicious PDF — malware analysis report

Static analysis result for SHA-256 b563995c47e19c6b…

MALICIOUS

PDF

2.6 KB
MD5: 2e9fd8b5ee69d5a9b4210d56bfec1241 SHA-1: 13fe2a75667c02ce47a9f9cc69c6822d06970c39 SHA-256: b563995c47e19c6b4278986e35d24986c4a4098281e58e4cf88d5f6187e27c94
140 Risk Score

Malware Insights

MITRE ATT&CK
T1204.002 Malicious File T1059.004 PowerShell

The PDF file contains an embedded malicious object that exploits CVE-2010-0188, a known vulnerability in Adobe Reader related to LibTIFF processing. This exploit is designed to download and execute a secondary payload. The ClamAV detection 'Pdf.Exploit.Dropped-90' further confirms its malicious nature. No scripts were extracted, and the document body was unreadable, but the exploit and embedded file are sufficient indicators of malicious intent.

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
d4e3c66afdf1069e065831a73ebc35ffd5b422f8fa8258699389cbef78d948a1
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).