Malicious PDF — malware analysis report

Static analysis result for SHA-256 90a99ee2cdbcc43f…

MALICIOUS

PDF

2.3 KB
MD5: c8311553389cbb5989cb7f78960c019c SHA-1: 457bc51bbc5de5ea0b76fe4c250708372d1ac203 SHA-256: 90a99ee2cdbcc43f0308072e904f87aebcfd794c2b3fc3ae84e9c9d5cd452bf5
78 Risk Score

Malware Insights

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

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 and TIFF images. This exploit is designed to execute arbitrary code, likely leading to the download and execution of a second-stage payload. The presence of an embedded file and the specific exploit identified strongly indicate a malicious intent to compromise the user's system.

Heuristics 4

  • 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.
  • 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
383ae814d8d4d027986b30e418348e6150ba465dc269409a5884c93e04c40eb6
pdf-embedded-file PDF EmbeddedFile object 1 at offset 0x51 13430 bytes
Detection
ClamAV: No threats found
Obfuscation or payload: likely
Carved artifact contains 1 long base64-like blob(s).