Overview

overview

10

Static

static

10

2026-08-10...ry.exe

windows10-2004-x64

10

2026-08-10...ry.exe

windows11-ltsc_2024-x64

10

Analysis

  • max time kernel
    148s
  • max time network
    145s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20260513-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20260513-enlocale:en-usos:windows10-2004-x64systemwindows
  • submitted
    10/08/2026, 06:01

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General

  • Target
    2026-08-10_9d3fc1dc0a2884eb63328836d9bf42a7_elex_gh0st-rat_nitol_remcos_scribble_virut_wannacry.exe
  • Size 65KB
  • Sample260810-grckased79
  • SHA256 32cb552704bf31ddf61c5586a876ea81753ad33950477f624c15c04af3b95432
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
10/10
defense_evasiondiscovery

Malware Config

Signatures

  • Modifies firewall policy service 3 TTPs 4 IoCs
    defense_evasion
  • Detects Windows executables referencing non-Windows User-Agents 4 IoCs
  • Executes dropped EXE 1 IoCs
  • Drops file in System32 directory 2 IoCs
  • Program crash 1 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 1 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

    discovery
  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious behavior: MapViewOfSection 64 IoCs
  • Suspicious behavior: RenamesItself 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2026-08-10_9d3fc1dc0a2884eb63328836d9bf42a7_elex_gh0st-rat_nitol_remcos_scribble_virut_wannacry.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-08-10_9d3fc1dc0a2884eb63328836d9bf42a7_elex_gh0st-rat_nitol_remcos_scribble_virut_wannacry.exe"
    1⤵
    • Modifies firewall policy service
    • Drops file in System32 directory
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: MapViewOfSection
    • Suspicious behavior: RenamesItself
    • Suspicious use of AdjustPrivilegeToken
    PID:60
  • C:\Windows\SysWOW64\zefhau.exe
    C:\Windows\SysWOW64\zefhau.exe
    1⤵
    • Executes dropped EXE
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    PID:4128
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4128 -s 400
      2⤵
      • Program crash
      PID:4364
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 4128 -ip 4128
    1⤵
      PID:620

    Network

          MITRE ATT&CK Enterprise v16

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          Downloads

          zefhau.exe
          • Path C:\Windows\SysWOW64\zefhau.exe
          • Size 65KB
          • SHA256 32cb552704bf31ddf61c5586a876ea81753ad33950477f624c15c04af3b95432
          • MD5 SHA1 SHA512 SSDEEP TLSH
          Submit Download

          memory/60-10-0x000000007FE30000-0x000000007FE3C000-memory.dmp
          Download

          memory/60-13-0x000000007FE30000-0x000000007FE3C000-memory.dmp
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          memory/60-4-0x0000000077173000-0x0000000077174000-memory.dmp
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          memory/60-1-0x0000000077172000-0x0000000077173000-memory.dmp
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          memory/60-5-0x000000007FE40000-0x000000007FE4C000-memory.dmp
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          memory/60-6-0x000000007FE40000-0x000000007FE4C000-memory.dmp
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          memory/60-3-0x000000007FE40000-0x000000007FE4C000-memory.dmp
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          memory/60-11-0x000000007FE30000-0x000000007FE3C000-memory.dmp
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          memory/60-2-0x0000000077172000-0x0000000077173000-memory.dmp
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          memory/60-12-0x000000007FE30000-0x000000007FE3C000-memory.dmp
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          memory/60-0-0x0000000000400000-0x0000000000415000-memory.dmp
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          memory/60-14-0x000000007FE40000-0x000000007FE4C000-memory.dmp
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          memory/60-25-0x0000000000400000-0x0000000000415000-memory.dmp
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          memory/60-16-0x000000007FE30000-0x000000007FE3C000-memory.dmp
          Download

          memory/4128-15-0x0000000000400000-0x0000000000415000-memory.dmp
          Download