Malicious Office (OLE) / .DOC — malware analysis report

Static analysis result for SHA-256 1517de13cb70461f…

MALICIOUS

Office (OLE) / .DOC

87.5 KB Created: 2006-01-25 08:30:00 Authoring application: Microsoft Office Word
MD5: f5595cd495e1dc3bab42ca522a586a56 SHA-1: 0ee332362ac4f99f60d0a101a64e5cd4ec1391e8 SHA-256: 1517de13cb70461fe9eed1849177b2f21a8be7e3d8ce0cec0095f91463c7f324
360 Risk Score

Malware Insights

MITRE ATT&CK
T1055 Process Injection T1204.002 Malicious File

The sample is a malicious OLE document that exhibits characteristics of process injection. It references critical Windows APIs such as WriteProcessMemory, CreateRemoteThread, LoadLibrary, and GetProcAddress, indicating an attempt to inject code into another process. The large slack space anomaly in the OLE structure further suggests obfuscation or embedded malicious content. No document body or script content was available for further analysis.

Heuristics 9

  • Reference to WriteProcessMemory API critical SC_STR_WRITEPROCESSMEMORY
    Reference to WriteProcessMemory API
  • Reference to CreateRemoteThread API critical SC_STR_CREATEREMOTETHREAD
    Reference to CreateRemoteThread API
  • Reference to WinExec API high SC_STR_WINEXEC
    Reference to WinExec API
  • Reference to CreateProcess API high SC_STR_CREATEPROCESS
    Reference to CreateProcess API
  • Reference to LoadLibrary API high SC_STR_LOADLIBRARY
    Reference to LoadLibrary API
  • Reference to GetProcAddress API high SC_STR_GETPROCADDRESS
    Reference to GetProcAddress API
  • OLE document has large unaccounted-for region high OLE_SLACK_ANOMALY
    OLE file is 89,602 bytes but its declared streams total only 21,151 bytes — 68,451 bytes (76%) live in unallocated sector slack. This is the canonical hiding place for pre-macro-era Office exploit payloads (XOR-encoded shellcode reached via a parser pointer-corruption bug in the document structure).
  • Reference to VirtualAlloc API medium SC_STR_VIRTUALALLOC
    Reference to VirtualAlloc API
  • Reference to VirtualProtect API medium SC_STR_VIRTUALPROTECT
    Reference to VirtualProtect API

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