Malicious PDF — malware analysis report

Static analysis result for SHA-256 2b1919569fe69a15…

MALICIOUS

PDF

2.6 KB
MD5: 8f882a5b97f45e6716a6e955c423cd88 SHA-1: e1c8b30ce210d2034cb2c91e09f4c43955f7b2b8 SHA-256: 2b1919569fe69a15fa5004be3d0d410fde01694012f54cb590b53560aacd90c1
138 Risk Score

Malware Insights

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

The PDF file contains an embedded XFA form with a payload matching the CVE-2010-0188 exploit for Adobe Reader. This exploit is known to deliver a second-stage malicious file, as indicated by the 'Pdf.Exploit.Dropped-90' ClamAV detection and the suspicious extracted artifact. The attack pattern involves tricking a user into opening a malicious PDF that leverages this vulnerability.

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
29d7f1e7d8790aa17169fddc9572f03ceeebfd94aa9d447c005a3aefa646faee
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).