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

Static analysis result for SHA-256 0141543611cf1bab…

MALICIOUS

Office (OLE) / .DOC

996.0 KB Created: 2009-12-11 11:47:44 Authoring application: Advanced Installer 16.5 build 8df7ad95
MD5: 3269390dcde2522a84ab4cee6d738afb SHA-1: f6a62afb104c87a2c7c6f5dd9085227d679d3839 SHA-256: 0141543611cf1babf0bf8a704d9f4fb28a5728458ae00f68957185ca52e4e549
362 Risk Score

Malware Insights

MITRE ATT&CK
T1059.001 PowerShell T1059.003 Windows Command and Shell T1204.002 Malicious File T1105 Ingress Tool Transfer

The sample is a malicious OLE document containing an embedded PE executable. Heuristics indicate the use of APIs like CreateProcess, ShellExecute, LoadLibrary, and GetProcAddress, along with references to PowerShell and Windows Script Host, suggesting the embedded executable is likely dropped and executed. The presence of an embedded executable is the primary indicator of malicious intent.

Heuristics 10

  • Embedded PE executable critical OLE_EMBEDDED_EXE
    MZ/PE header found inside document — possible embedded executable
  • PEB access via FS segment (x86) high SC_PEB_ACCESS
    PEB access via FS segment (x86)
  • Reference to CreateProcess API high SC_STR_CREATEPROCESS
    Reference to CreateProcess API
  • Reference to ShellExecute API high SC_STR_SHELLEXEC
    Reference to ShellExecute API
  • Reference to PowerShell high SC_STR_POWERSHELL
    Reference to PowerShell
  • Reference to Windows Script Host high SC_STR_WSCRIPT
    Reference to Windows Script Host
  • Reference to LoadLibrary API high SC_STR_LOADLIBRARY
    Reference to LoadLibrary API
  • Reference to GetProcAddress API high SC_STR_GETPROCADDRESS
    Reference to GetProcAddress API
  • Reference to VirtualProtect API medium SC_STR_VIRTUALPROTECT
    Reference to VirtualProtect API
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL http://t2.symcb.com0
    • http://tl.symcd.com0&
    • http://s.symcd.com06
    • http://ts-ocsp.ws.symantec.com0
    • http://t1.symcb.com/ThawtePCA.crl0
    • http://tl.symcb.com/tl.crl0
    • https://www.thawte.com/cps0/
    • https://www.thawte.com/repository0W
    • http://tl.symcb.com/tl.crt0
    • https://www.advancedinstaller.com
    • https://d.symcb.com/cps0%
    • https://d.symcb.com/rpa0
    • http://s.symcb.com/universal-root.crl0
    • https://d.symcb.com/rpa0@
    • http://ts-crl.ws.symantec.com/sha256-tss-ca.crl0
    • http://ts-aia.ws.symantec.com/sha256-tss-ca.cer0(

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
embedded_office_00009400.exe
ac243f839631e133022b831f5196637247ca009c8a0b713f12302f09cd2b725a		 embedded-pe Office MZ+PE at offset 0x9400 982016 bytes

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