Malicious PDF — malware analysis report

Static analysis result for SHA-256 b570703c7c6d46fb…

MALICIOUS

PDF

2.6 KB
MD5: 52023bd7ae346c604d9a64a39b5a640b SHA-1: c8f64ead89117db99705d6d25071297f22a5f1cb SHA-256: b570703c7c6d46fb5928d1c236d4019c1213d5bc7386d2a97039c1b649050482
138 Risk Score

Malware Insights

MITRE ATT&CK
T1204.002 Malicious File T1566.001 Spearphishing Attachment T1204 User Execution

The PDF file contains an embedded malicious object, identified by the 'PDF_EMBEDDED' heuristic. It specifically exploits CVE-2010-0188, a known vulnerability in Adobe Reader related to XFA forms and TIFF image parsing. The ClamAV detection 'Pdf.Exploit.Dropped-90' further confirms its malicious nature. The embedded file, 'embedded_file_obj0001.bin', is likely the second-stage 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.
  • 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
b364d32ad51452ed3fd9e6e650e2b1cc692fdc2ae097246f457ce4d7175c0e5b
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).