Malicious PDF — malware analysis report

Static analysis result for SHA-256 b0bd6674d7220efe…

MALICIOUS

PDF

5.5 KB
MD5: 8b7ddfceda2176553049df6629dee2fc SHA-1: 424d98d76a59dce83c8ca65e20456625c490e809 SHA-256: b0bd6674d7220efe9312ec57415ecda21e22b2882f453e79113d8c7ef1e8349b
218 Risk Score

Malware Insights

MITRE ATT&CK
T1203 Exploitation for Client Execution T1566.001 Spearphishing Attachment

The file is a PDF document that exploits CVE-2010-0188, a vulnerability in Adobe Reader related to LibTIFF XFA image processing. This exploit allows for the execution of arbitrary code. An embedded file was also detected, which ClamAV identified as potentially malicious and related to the same CVE.

Heuristics 7

  • Adobe Reader LibTIFF XFA image exploit — CVE-2010-0188 critical CVE likely CVE_2010_0188
    PDF contains the CVE-2010-0188 exploit template: XFA JavaScript heap-spray setup, a generated TIFF image payload, and assignment of that TIFF data to an XFA image field rawValue to trigger Adobe Reader's LibTIFF parser.
  • ClamAV: Pdf.Exploit.CVE_2010_0188-10 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Exploit.CVE_2010_0188-10
  • ClamAV detection on extracted artifact critical EXTRACTED_FILE_CLAMAV
    ClamAV flagged at least one file extracted from inside this sample. Even when the wrapping document carries no AV detection of its own, a hit on the carved artifact is a strong indicator the sample is a delivery vehicle.
  • Embedded script payload in PDF stream medium PDF_EMBEDDED_SCRIPT_PAYLOAD
    PDF stream bytes contain an HTML/XFA <script> tag without accompanying Windows shell-execution primitives — common in accessible XFA forms but worth surfacing for analyst review.
  • 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_obj0006.bin
0ff10d2623d8c5b3053601e824f75d9620627a9ff2be70f5d660f9b9205cef89
pdf-embedded-file PDF EmbeddedFile object 6 at offset 0x412 33502 bytes
Detection
ClamAV: Pdf.Exploit.CVE_2010_0188-10
Obfuscation or payload: likely
Carved artifact contains 1 long base64-like blob(s).