Malicious PDF — malware analysis report

Static analysis result for SHA-256 aa82a683963619a2…

MALICIOUS

PDF

3.4 KB
MD5: 6cdb3af1e98a3af5c87bd28706b87294 SHA-1: 3991d564022ff50279bfc64105b23217a57ca62f SHA-256: aa82a683963619a23a88361367b6d5282dfb7683d9d08199632b820cced5cf75
78 Risk Score

Malware Insights

MITRE ATT&CK
T1204.002 Malicious File T1559.001 Component Object Model Hijacking

The PDF file contains indicators of exploitation for CVE-2010-0188, a known vulnerability in Adobe Reader related to XFA forms and LibTIFF. The critical heuristic firing directly points to this exploit, suggesting the document is designed to trigger it upon opening in a vulnerable reader version. The presence of XFA and ASCII85Decode filters further supports the exploit delivery mechanism. No scripts were extracted, and the document body was not sufficiently readable to determine a specific lure.

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.
  • XFA form low PDF_XFA
    PDF uses XML Forms Architecture — can contain script logic
  • ASCII85Decode filter (with exploit indicators) low PDF_FILTER_85
    ASCII85 encoding filter present alongside exploit delivery indicators — uncommon outside of obfuscation
  • 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
stream_000_off000001e9.bin
eb1217fab8fa56e5682fcfb8415ed6e98c0db3353950c23c3c787283eb934ba6
decompressed-pdf-stream PDF FlateDecoded stream at offset 0x1E9 13469 bytes
Detection
ClamAV: No threats found
Obfuscation or payload: likely
Carved artifact contains 1 long base64-like blob(s).