Malicious PDF — malware analysis report

Static analysis result for SHA-256 9734e4a285baedf0…

MALICIOUS

PDF

2.6 KB
MD5: f62bbbd3b45157685c2e58286b0836f6 SHA-1: 556e48e8071bfb5fe8e5f54e1f7ac30b74566b91 SHA-256: 9734e4a285baedf09e580f2b9c4db5e7005975329f679a6a9da62c546fbcf8c7
138 Risk Score

Malware Insights

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

The sample is a PDF document identified as malicious by ClamAV (Pdf.Exploit.Dropped-90). Static analysis detected an exploit for CVE-2010-0188, targeting Adobe Reader's handling of XFA forms and embedded TIFF images. This exploit likely serves to download and execute a second-stage payload, although the specific payload was not detailed in the provided evidence.

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
e324e0dfeb396b3bcf2338b8a37243fd54adf25a8d814155e4cc170d67b67f8d
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).