Malicious PDF — malware analysis report

Static analysis result for SHA-256 35d2114c0a17b9ef…

MALICIOUS

PDF

2.6 KB
MD5: 381c30d8ef8172d7166618a2497fa3dc SHA-1: dea9418768dc6bb82e0bc21ccb0702835bef3e6a SHA-256: 35d2114c0a17b9efb5cbca0d14934afff5085061f495c670bfdafecf3cc479eb
138 Risk Score

Malware Insights

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

The sample is a PDF file that exploits the CVE-2010-0188 vulnerability in Adobe Reader. This vulnerability is related to the handling of XFA forms and embedded TIFF images. The exploit likely leads to the execution of a dropped payload, as indicated by the ClamAV detection and the embedded file artifact. The document body is largely unreadable, but the critical heuristics point to a clear exploit delivery mechanism.

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
70b98c16aa74d7d4037641b3ff9e3db2724d22afefd641f85a23e593a63475a6
pdf-embedded-file PDF EmbeddedFile object 1 at offset 0x5D 13415 bytes
Detection
ClamAV: No threats found
Obfuscation or payload: likely
Carved artifact contains 1 long base64-like blob(s).