Malicious PDF — malware analysis report

Static analysis result for SHA-256 f6b0a25beb2558ae…

MALICIOUS

PDF

4.0 KB
MD5: 470e6b60cf6fa0b025d4f145f289adda SHA-1: 0b4b873a5dae2f9b7153c811bbb04fc170187542 SHA-256: f6b0a25beb2558ae111a2af1eb388b49fe675c1b378450009b13200383b88895
218 Risk Score

Malware Insights

MITRE ATT&CK
T1204.002 Malicious File: User Execution T1559.001 Component Object Model Hijacking

The PDF file contains an embedded TIFF image that exploits CVE-2010-0188 in Adobe Reader. This vulnerability allows for arbitrary code execution when the document is opened. The embedded artifact was also flagged by ClamAV as malicious, confirming its suspicious nature. The attack pattern involves luring the user to open a malicious PDF which then exploits a known vulnerability.

Heuristics 7

  • 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.Pidief-3 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Exploit.Pidief-3
  • ClamAV detection on extracted artifact critical EXTRACTED_FILE_CLAMAV
    ClamAV flagged at least one file extracted from inside this sample. Even when the wrapping document carries no AV detection of its own, a hit on the carved artifact is a strong indicator the sample is a delivery vehicle.
  • ASCIIHexDecode filter (with exploit indicators) medium PDF_FILTER_HEX
    Hex-encoding filter present alongside exploit delivery indicators — often used to hide payload or shellcode bytes
  • 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
1453b77ba59459d28600be45b97fffaa05d7cf343b602ac60561bfe58df39fb5
pdf-embedded-file PDF EmbeddedFile object 1 at offset 0x6C 13441 bytes
Detection
ClamAV: Pdf.Exploit.Pidief-3
Obfuscation or payload: likely
Carved artifact contains 1 long base64-like blob(s).