Analysis

  • max time kernel
    95s
  • max time network
    97s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    09/11/2024, 20:30

General

  • Target

    66b802410562811332fee88376be681719a02c8f42e9f508ba573d43264a752eN.exe

  • Size

    68KB

  • MD5

    5fc2882dba802600ed868d1cccea5060

  • SHA1

    8817ed30aec41884e55fd01414bf85282ae473e0

  • SHA256

    66b802410562811332fee88376be681719a02c8f42e9f508ba573d43264a752e

  • SHA512

    5fa4f2002cb935896af7ece07a9c34d9a57e65449cce6ea22b5ba4e07608d5e55d4bc06b0766ae684b569b06049f058031c00a2c788ca1314c1641d102ca2d8d

  • SSDEEP

    1536:VDwUvyK+twm87HjWtg9VW1wUDrv3jDHffOSbXOT:RvyJwUtg9AHnOSbY

Malware Config

Signatures

  • Drops startup file 1 IoCs
  • Impair Defenses: Safe Mode Boot 1 TTPs 1 IoCs
  • Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

    Using powershell.exe command.

  • 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.

  • Kills process with taskkill 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\66b802410562811332fee88376be681719a02c8f42e9f508ba573d43264a752eN.exe
    "C:\Users\Admin\AppData\Local\Temp\66b802410562811332fee88376be681719a02c8f42e9f508ba573d43264a752eN.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2092
    • C:\Windows\system32\cmd.exe
      "C:\Windows\sysnative\cmd" /c "C:\Users\Admin\AppData\Local\Temp\6F54.tmp\lock.bat "C:\Users\Admin\AppData\Local\Temp\66b802410562811332fee88376be681719a02c8f42e9f508ba573d43264a752eN.exe""
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2224
      • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
        PowerShell -ExecutionPolicy Bypass -File "C:\Users\Admin\AppData\Local\Temp\BlockWindows.ps1"
        3⤵
        • Drops startup file
        • Impair Defenses: Safe Mode Boot
        • Command and Scripting Interpreter: PowerShell
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:5108
        • C:\Windows\system32\taskkill.exe
          "C:\Windows\system32\taskkill.exe" /F /IM explorer.exe
          4⤵
          • Kills process with taskkill
          • Suspicious use of AdjustPrivilegeToken
          PID:3688

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\6F54.tmp\lock.bat

    Filesize

    88B

    MD5

    1bd17ffa60b07280bdb6ff5e257ad872

    SHA1

    113bf27cce1e65477febe8a395c34df1558e39fd

    SHA256

    9f669db892875d281aec91c08edf9e34ecc1dcda3f2d88fe70a119a3da8a2fea

    SHA512

    855484587dfba3313ce1e66e515d53a2423a332ce206d35dfe96e31881a8fda35388ce431bb4f08bfe13fb0aaef534d6b1b0a3050f9f00162e696ae363272381

  • C:\Users\Admin\AppData\Local\Temp\BlockWindows.ps1

    Filesize

    5KB

    MD5

    c8f337e720c8097bda0d2c593ae34166

    SHA1

    7eaa7e5e32d8eb4e2a87d8c218bc3755cb1fa9bc

    SHA256

    0f266c82f0edafaa2f1d49253de4987c3fa52a908b8123f6dec8646479e56e02

    SHA512

    6bbf7adcfe1573c14f749c70cb23ef7dc0d638f988fe8558cf82f6a89797af45abf0b0dc219750d7e02a609c20196882837735b96c8ba02acbf7fc1175ed06cd

  • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_xiroztqw.quu.ps1

    Filesize

    60B

    MD5

    d17fe0a3f47be24a6453e9ef58c94641

    SHA1

    6ab83620379fc69f80c0242105ddffd7d98d5d9d

    SHA256

    96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

    SHA512

    5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

  • memory/5108-4-0x00007FFFFBD73000-0x00007FFFFBD75000-memory.dmp

    Filesize

    8KB

  • memory/5108-5-0x0000021BE7D70000-0x0000021BE7D92000-memory.dmp

    Filesize

    136KB

  • memory/5108-15-0x00007FFFFBD70000-0x00007FFFFC831000-memory.dmp

    Filesize

    10.8MB

  • memory/5108-17-0x00007FFFFBD70000-0x00007FFFFC831000-memory.dmp

    Filesize

    10.8MB

  • memory/5108-19-0x00007FFFFBD70000-0x00007FFFFC831000-memory.dmp

    Filesize

    10.8MB

  • memory/5108-20-0x00007FFFFBD73000-0x00007FFFFBD75000-memory.dmp

    Filesize

    8KB

  • memory/5108-21-0x00007FFFFBD70000-0x00007FFFFC831000-memory.dmp

    Filesize

    10.8MB

  • memory/5108-22-0x00007FFFFBD70000-0x00007FFFFC831000-memory.dmp

    Filesize

    10.8MB

  • memory/5108-23-0x00007FFFFBD70000-0x00007FFFFC831000-memory.dmp

    Filesize

    10.8MB