Malicious PDF — malware analysis report

Static analysis result for SHA-256 9d31e6639ab57bc6…

MALICIOUS

PDF

4.0 KB
MD5: df54bbdc5fdb8488366969b0e7b2d9fd SHA-1: d27160539010d8df2b73ad2427fa5a8096d81448 SHA-256: 9d31e6639ab57bc67d1874068d724ba4397d9e89984705522b624224f61b42d5
160 Risk Score

Malware Insights

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

The PDF file contains an embedded artifact and triggers critical heuristics for CVE-2010-0188, indicating an exploit targeting Adobe Reader. The presence of an XFA form and ASCIIHexDecode filter further supports the exploitation vector. The embedded file is likely the second-stage payload.

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
2ea75519927a780e8d77cab52709949c23b88de99b46a752a8541045087eb71b
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).