Malicious PDF — malware analysis report

Static analysis result for SHA-256 de8c458926e72a2b…

MALICIOUS

PDF

2.6 KB
MD5: 0304660f6d01c075d222756c22b74539 SHA-1: 7fd9b40006c33ff4addb24b7e7a9b8dbfe19ed20 SHA-256: de8c458926e72a2bf84cc68d686b101662cfc37d3b7eddd86d664ff3bba5ecb2
138 Risk Score

Malware Insights

MITRE ATT&CK
T1204 Malicious File T1204.002 Malicious File: User Execution: Malicious Attachment T1204.001 Malicious File: User Execution: Malicious Link

The PDF file contains an embedded object that triggers the CVE-2010-0188 exploit, targeting a vulnerability in Adobe Reader's handling of XFA forms. This exploit is designed to execute a malicious payload, as indicated by the ClamAV detection 'Pdf.Exploit.Dropped-90'. The embedded file, 'embedded_file_obj0001.bin', is likely the delivered 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
29e644c078f426576e351489d94ad6d232edb42fb02f118206e9bc15ea7fa0b4
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).