Malicious PDF / .GIF — malware analysis report

Static analysis result for SHA-256 bc40475f7aa58038…

MALICIOUS

PDF / .GIF

244.6 KB
MD5: b9e5a9e96fec3b23e250c8ffe916b237 SHA-1: d29a3b3f117a7954023f5ab56b653b2d2606234a SHA-256: bc40475f7aa580385e364aad5b3f6a04af9345ef4d638c3319d1f0fd4285307e
180 Risk Score

Malware Insights

MITRE ATT&CK
T1059.003 Windows Command Shell T1566.002 Spearphishing Attachment T1204.002 Malicious File

The PDF file contains an embedded script payload and a launch action that targets cmd.exe. This indicates an attempt to execute arbitrary commands upon opening the document. The embedded script, named 'embedded_pdf_script_0003cc93.bin', is the likely mechanism for this execution. The document body provides no specific lure, but the technical indicators strongly suggest a malicious payload delivery.

Heuristics 4

  • Launch action critical PDF_LAUNCH
    PDF contains a /Launch action whose target is an executable, URL, or UNC path — can start an external application
  • /Launch action target: cmd.exe critical PDF_LAUNCH_COMMAND
    PDF /Launch action specifies an executable target — references a known-dangerous executable (cmd, PowerShell, etc.).
  • Embedded script payload in PDF stream high PDF_EMBEDDED_SCRIPT_PAYLOAD
    PDF stream bytes contain script execution markers such as ActiveXObject/CreateObject, WScript.Shell, PowerShell, or shell-exec primitives. This is stronger than ordinary PDF JavaScript because it indicates a staged external script payload hidden in stream bytes.
  • Suspicious extracted artifact medium 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_pdf_script_0003cc93.bin
3c1c2e8be961eb4ab301b1f66bc22ba09721e427af2cfe1eee4c090ea75e4119
pdf-embedded-script PDF raw stream script payload at offset 0x3CC93 248962 bytes
Detection
ClamAV: No threats found
Obfuscation or payload: likely
Carved artifact contains 1 shell/COM execution token(s).