Malicious PDF — malware analysis report

Static analysis result for SHA-256 4b3b12910a9521ee…

MALICIOUS

PDF

4.0 KB
MD5: f27f9a1f7f1ab9513e48b8aa01cc378c SHA-1: b6312d89375e1ef9143b223787959c8d786db5be SHA-256: 4b3b12910a9521eec9c3d3e2436344bb0521b4c442d82576b5aea9679b5784e8
160 Risk Score

Malware Insights

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

The PDF file contains an embedded TIFF image that exploits CVE-2010-0188, a vulnerability in Adobe Reader's handling of XFA forms. This exploit allows for arbitrary code execution. The file was detected by ClamAV as Pdf.Exploit.Pidief-3, indicating a known malicious PDF exploit.

Heuristics 6

  • 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
  • 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
a9edecd8be3a43b61af91d106c5af6959362bf9e72376e3dc17eba9aecda10b2
pdf-embedded-file PDF EmbeddedFile object 1 at offset 0x6C 13441 bytes
Detection
ClamAV: No threats found
Obfuscation or payload: likely
Carved artifact contains 1 long base64-like blob(s).