Analysis

  • max time kernel
    150s
  • max time network
    151s
  • platform
    windows10-ltsc 2021_x64
  • resource
    win10ltsc2021-20250207-en
  • resource tags

    arch:x64arch:x86image:win10ltsc2021-20250207-enlocale:en-usos:windows10-ltsc 2021-x64system
  • submitted
    08-02-2025 08:16

General

  • Target

    lmlmdos.exe

  • Size

    23KB

  • MD5

    5eb67cac2f9ef8a548ba327896909cda

  • SHA1

    b8f3612f2d00c581387b02a615ad178874b51329

  • SHA256

    f5c542679e18756fcaaf434a1df9ecee261c8fa6788b75dc64c458e4eef15f2d

  • SHA512

    40665518a5451f7bd86ca1e3ad58cec178566c0f45fde647e76c2bb8d81611ca61fe1974cb97988065239005ca63fc9de0c449d45357ee90a8a99ccd30a5415f

  • SSDEEP

    384:XweXCQIreJig/8Z7SS1fEBpng6tgL2IBPZVmRvR6JZlbw8hqIusZzZQy:oLq411eRpcnuI

Malware Config

Signatures

  • Njrat family
  • njRAT/Bladabindi

    Widely used RAT written in .NET.

  • Boot or Logon Autostart Execution: Active Setup 2 TTPs 7 IoCs

    Adversaries may achieve persistence by adding a Registry key to the Active Setup of the local machine.

  • Downloads MZ/PE file 1 IoCs
  • Modifies Windows Firewall 2 TTPs 1 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Drops startup file 2 IoCs
  • Event Triggered Execution: Component Object Model Hijacking 1 TTPs

    Adversaries may establish persistence by executing malicious content triggered by hijacked references to Component Object Model (COM) objects.

  • Executes dropped EXE 11 IoCs
  • Adds Run key to start application 2 TTPs 2 IoCs
  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • Installs/modifies Browser Helper Object 2 TTPs 8 IoCs

    BHOs are DLL modules which act as plugins for Internet Explorer.

  • Drops file in System32 directory 1 IoCs
  • Drops file in Program Files directory 64 IoCs
  • Drops file in Windows directory 35 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Event Triggered Execution: Netsh Helper DLL 1 TTPs 3 IoCs

    Netsh.exe (also referred to as Netshell) is a command-line scripting utility used to interact with the network configuration of a system.

  • System Location Discovery: System Language Discovery 1 TTPs 4 IoCs

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

  • System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 1 IoCs

    Adversaries may check for Internet connectivity on compromised systems.

  • Checks processor information in registry 2 TTPs 2 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Modifies Internet Explorer settings 1 TTPs 24 IoCs
  • Modifies data under HKEY_USERS 2 IoCs
  • Modifies registry class 64 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 39 IoCs
  • Suspicious use of WriteProcessMemory 26 IoCs
  • System policy modification 1 TTPs 4 IoCs
  • Uses Task Scheduler COM API 1 TTPs

    The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.

Processes

  • C:\Users\Admin\AppData\Local\Temp\lmlmdos.exe
    "C:\Users\Admin\AppData\Local\Temp\lmlmdos.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:1828
    • C:\Users\Admin\AppData\Local\Temp\server.exe
      "C:\Users\Admin\AppData\Local\Temp\server.exe"
      2⤵
      • Drops startup file
      • Executes dropped EXE
      • Adds Run key to start application
      • System Location Discovery: System Language Discovery
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:4044
      • C:\Windows\SysWOW64\netsh.exe
        netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\server.exe" "server.exe" ENABLE
        3⤵
        • Modifies Windows Firewall
        • Event Triggered Execution: Netsh Helper DLL
        • System Location Discovery: System Language Discovery
        PID:1164
  • C:\Program Files (x86)\Microsoft\EdgeUpdate\MicrosoftEdgeUpdate.exe
    "C:\Program Files (x86)\Microsoft\EdgeUpdate\MicrosoftEdgeUpdate.exe" /ping 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-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
    1⤵
    • System Location Discovery: System Language Discovery
    • System Network Configuration Discovery: Internet Connection Discovery
    PID:1320
  • C:\Windows\system32\MusNotification.exe
    "C:\Windows\system32\MusNotification.exe"
    1⤵
    • Checks processor information in registry
    • Suspicious use of AdjustPrivilegeToken
    PID:1152
  • C:\Program Files (x86)\Microsoft\EdgeUpdate\Install\{C35FE37E-A934-4B96-9DDD-A4D1C2265762}\MicrosoftEdge_X64_132.0.2957.140.exe
    "C:\Program Files (x86)\Microsoft\EdgeUpdate\Install\{C35FE37E-A934-4B96-9DDD-A4D1C2265762}\MicrosoftEdge_X64_132.0.2957.140.exe" --msedge --verbose-logging --do-not-launch-msedge --system-level --channel=stable
    1⤵
    • Drops file in Program Files directory
    • Suspicious use of WriteProcessMemory
    PID:4204
    • C:\Program Files (x86)\Microsoft\EdgeUpdate\Install\{C35FE37E-A934-4B96-9DDD-A4D1C2265762}\EDGEMITMP_16580.tmp\setup.exe
      "C:\Program Files (x86)\Microsoft\EdgeUpdate\Install\{C35FE37E-A934-4B96-9DDD-A4D1C2265762}\EDGEMITMP_16580.tmp\setup.exe" --install-archive="C:\Program Files (x86)\Microsoft\EdgeUpdate\Install\{C35FE37E-A934-4B96-9DDD-A4D1C2265762}\MicrosoftEdge_X64_132.0.2957.140.exe" --msedge --verbose-logging --do-not-launch-msedge --system-level --channel=stable
      2⤵
      • Boot or Logon Autostart Execution: Active Setup
      • Executes dropped EXE
      • Installs/modifies Browser Helper Object
      • Drops file in Program Files directory
      • Drops file in Windows directory
      • Modifies Internet Explorer settings
      • Modifies registry class
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      • System policy modification
      PID:384
      • C:\Program Files (x86)\Microsoft\EdgeUpdate\Install\{C35FE37E-A934-4B96-9DDD-A4D1C2265762}\EDGEMITMP_16580.tmp\setup.exe
        "C:\Program Files (x86)\Microsoft\EdgeUpdate\Install\{C35FE37E-A934-4B96-9DDD-A4D1C2265762}\EDGEMITMP_16580.tmp\setup.exe" --type=crashpad-handler /prefetch:4 --monitor-self-annotation=ptype=crashpad-handler --database=C:\Windows\SystemTemp\MsEdgeCrashpad --annotation=IsOfficialBuild=1 --annotation=channel= --annotation=chromium-version=132.0.6834.160 "--annotation=exe=C:\Program Files (x86)\Microsoft\EdgeUpdate\Install\{C35FE37E-A934-4B96-9DDD-A4D1C2265762}\EDGEMITMP_16580.tmp\setup.exe" --annotation=plat=Win64 --annotation=prod=Edge --annotation=ver=132.0.2957.140 --initial-client-data=0x248,0x24c,0x250,0x224,0x254,0x7ff6565ea818,0x7ff6565ea824,0x7ff6565ea830
        3⤵
        • Executes dropped EXE
        • Drops file in Windows directory
        PID:3592
      • C:\Program Files (x86)\Microsoft\EdgeUpdate\Install\{C35FE37E-A934-4B96-9DDD-A4D1C2265762}\EDGEMITMP_16580.tmp\setup.exe
        "C:\Program Files (x86)\Microsoft\EdgeUpdate\Install\{C35FE37E-A934-4B96-9DDD-A4D1C2265762}\EDGEMITMP_16580.tmp\setup.exe" --msedge --channel=stable --system-level --verbose-logging --create-shortcuts=2 --install-level=1
        3⤵
        • Executes dropped EXE
        • Drops file in System32 directory
        • Drops file in Windows directory
        • Modifies data under HKEY_USERS
        • Suspicious use of WriteProcessMemory
        PID:2744
        • C:\Program Files (x86)\Microsoft\EdgeUpdate\Install\{C35FE37E-A934-4B96-9DDD-A4D1C2265762}\EDGEMITMP_16580.tmp\setup.exe
          "C:\Program Files (x86)\Microsoft\EdgeUpdate\Install\{C35FE37E-A934-4B96-9DDD-A4D1C2265762}\EDGEMITMP_16580.tmp\setup.exe" --type=crashpad-handler /prefetch:4 --monitor-self-annotation=ptype=crashpad-handler --database=C:\Windows\SystemTemp\MsEdgeCrashpad --annotation=IsOfficialBuild=1 --annotation=channel= --annotation=chromium-version=132.0.6834.160 "--annotation=exe=C:\Program Files (x86)\Microsoft\EdgeUpdate\Install\{C35FE37E-A934-4B96-9DDD-A4D1C2265762}\EDGEMITMP_16580.tmp\setup.exe" --annotation=plat=Win64 --annotation=prod=Edge --annotation=ver=132.0.2957.140 --initial-client-data=0x248,0x24c,0x250,0x224,0x254,0x7ff6565ea818,0x7ff6565ea824,0x7ff6565ea830
          4⤵
          • Executes dropped EXE
          • Drops file in Windows directory
          PID:1748
      • C:\Program Files (x86)\Microsoft\Edge\Application\132.0.2957.140\Installer\setup.exe
        "C:\Program Files (x86)\Microsoft\Edge\Application\132.0.2957.140\Installer\setup.exe" --msedge --channel=stable --register-package-identity --verbose-logging --system-level
        3⤵
        • Executes dropped EXE
        • Drops file in Windows directory
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of WriteProcessMemory
        PID:2252
        • C:\Program Files (x86)\Microsoft\Edge\Application\132.0.2957.140\Installer\setup.exe
          "C:\Program Files (x86)\Microsoft\Edge\Application\132.0.2957.140\Installer\setup.exe" --type=crashpad-handler /prefetch:4 --monitor-self-annotation=ptype=crashpad-handler --database=C:\Windows\SystemTemp\MsEdgeCrashpad --annotation=IsOfficialBuild=1 --annotation=channel= --annotation=chromium-version=132.0.6834.160 "--annotation=exe=C:\Program Files (x86)\Microsoft\Edge\Application\132.0.2957.140\Installer\setup.exe" --annotation=plat=Win64 --annotation=prod=Edge --annotation=ver=132.0.2957.140 --initial-client-data=0x248,0x24c,0x250,0x224,0x254,0x7ff6418ca818,0x7ff6418ca824,0x7ff6418ca830
          4⤵
          • Executes dropped EXE
          • Drops file in Windows directory
          PID:1840
      • C:\Program Files (x86)\Microsoft\Edge\Application\132.0.2957.140\Installer\setup.exe
        "C:\Program Files (x86)\Microsoft\Edge\Application\132.0.2957.140\Installer\setup.exe" --msedge --channel=stable --remove-deprecated-packages --verbose-logging --system-level
        3⤵
        • Executes dropped EXE
        • Drops file in Windows directory
        • Suspicious use of WriteProcessMemory
        PID:1264
        • C:\Program Files (x86)\Microsoft\Edge\Application\132.0.2957.140\Installer\setup.exe
          "C:\Program Files (x86)\Microsoft\Edge\Application\132.0.2957.140\Installer\setup.exe" --type=crashpad-handler /prefetch:4 --monitor-self-annotation=ptype=crashpad-handler --database=C:\Windows\SystemTemp\MsEdgeCrashpad --annotation=IsOfficialBuild=1 --annotation=channel= --annotation=chromium-version=132.0.6834.160 "--annotation=exe=C:\Program Files (x86)\Microsoft\Edge\Application\132.0.2957.140\Installer\setup.exe" --annotation=plat=Win64 --annotation=prod=Edge --annotation=ver=132.0.2957.140 --initial-client-data=0x248,0x24c,0x250,0x224,0x254,0x7ff6418ca818,0x7ff6418ca824,0x7ff6418ca830
          4⤵
          • Executes dropped EXE
          • Drops file in Windows directory
          PID:3000
      • C:\Program Files (x86)\Microsoft\Edge\Application\132.0.2957.140\Installer\setup.exe
        "C:\Program Files (x86)\Microsoft\Edge\Application\132.0.2957.140\Installer\setup.exe" --msedge --channel=stable --update-game-assist-package --verbose-logging --system-level
        3⤵
        • Executes dropped EXE
        • Drops file in Program Files directory
        • Drops file in Windows directory
        • Suspicious use of WriteProcessMemory
        PID:1764
        • C:\Program Files (x86)\Microsoft\Edge\Application\132.0.2957.140\Installer\setup.exe
          "C:\Program Files (x86)\Microsoft\Edge\Application\132.0.2957.140\Installer\setup.exe" --type=crashpad-handler /prefetch:4 --monitor-self-annotation=ptype=crashpad-handler --database=C:\Windows\SystemTemp\MsEdgeCrashpad --annotation=IsOfficialBuild=1 --annotation=channel= --annotation=chromium-version=132.0.6834.160 "--annotation=exe=C:\Program Files (x86)\Microsoft\Edge\Application\132.0.2957.140\Installer\setup.exe" --annotation=plat=Win64 --annotation=prod=Edge --annotation=ver=132.0.2957.140 --initial-client-data=0x248,0x24c,0x250,0x224,0x254,0x7ff6418ca818,0x7ff6418ca824,0x7ff6418ca830
          4⤵
          • Executes dropped EXE
          • Drops file in Windows directory
          PID:1520
  • C:\Windows\System32\svchost.exe
    C:\Windows\System32\svchost.exe -k AppReadiness -p -s AppReadiness
    1⤵
      PID:3564

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

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    Downloads

    • C:\Program Files (x86)\Microsoft\EdgeUpdate\Install\{C35FE37E-A934-4B96-9DDD-A4D1C2265762}\EDGEMITMP_16580.tmp\setup.exe

      Filesize

      6.6MB

      MD5

      b4c8ad75087b8634d4f04dc6f92da9aa

      SHA1

      7efaa2472521c79d58c4ef18a258cc573704fb5d

      SHA256

      522a25568bb503cf8b44807661f31f0921dee91d37691bf399868733205690bf

      SHA512

      5094505b33a848badcffd6b3b93aad9ad73f391e201dee052376c4f8573ba351f0b8c102131216088ffb38d0ed7b5fe70ba95c3ac2c33a50c993584fe7c435e3

    • C:\Users\Admin\AppData\Local\Temp\server.exe

      Filesize

      23KB

      MD5

      5eb67cac2f9ef8a548ba327896909cda

      SHA1

      b8f3612f2d00c581387b02a615ad178874b51329

      SHA256

      f5c542679e18756fcaaf434a1df9ecee261c8fa6788b75dc64c458e4eef15f2d

      SHA512

      40665518a5451f7bd86ca1e3ad58cec178566c0f45fde647e76c2bb8d81611ca61fe1974cb97988065239005ca63fc9de0c449d45357ee90a8a99ccd30a5415f

    • C:\Windows\SystemTemp\msedge_installer.log

      Filesize

      69KB

      MD5

      5c4986c48bd0ef3537305d415ab9adc7

      SHA1

      e3435d04e4311e39906d067b4a33a9231da8a86d

      SHA256

      d0a3078865d7da2ce9a9d2cbd66767c3764920e379b70ca964c1815d68566b7a

      SHA512

      cbf1abb60b7320f8987a29f0a61d42355428f9a275c4ab32ee369a018e0a2e66150838c4e7093b5524fcf8d6e41d305d38f99713985125165c83f653a75fe05a

    • C:\Windows\SystemTemp\msedge_installer.log

      Filesize

      95KB

      MD5

      931ee30ab98c7d6236e5b7308c001189

      SHA1

      a4a82e241ae4b46b8111f8be32c6077b716be4fd

      SHA256

      761f913b1f776e434dd90cf950079c5e882cbbd6fd78d82477034e57f4926c66

      SHA512

      5cd34bf98edd1bb2e253c3934aa8816f0020242c49d7b98150712f150c5daadfe3dd26bafd0d65c934755d9766aef3bedd8efdf3bcc6097345d5ed6d6ace0155

    • C:\Windows\SystemTemp\msedge_installer.log

      Filesize

      95KB

      MD5

      2cd1a27f76585ac1c1ae8ba928cb4830

      SHA1

      bc4b73ae593805462bb66c43a46de0939b7fdde4

      SHA256

      366e2ff573d6726193dc063c996c5a80723fba6c0c1131d62ff2d0774341b21b

      SHA512

      84ea0bda05beba46727e613d7f7681cf8259e29e1db372282b43eec8cc508e2bf895e938fb8532ec3dd60dbed1a16602ee2b05f94010aee3a12d8f7f9d7b3f25

    • C:\Windows\SystemTemp\msedge_installer.log

      Filesize

      100KB

      MD5

      2347bd321b25a08b3c076419e9fe2921

      SHA1

      015a9f0fce90a04aca2c99f8f45ad038b064585c

      SHA256

      b35bda6354985c751742beab3a3fa18938040df8de276761bb60808744e3b224

      SHA512

      0ac3b430b3110017936cd66dea52f61e2522871606792f2668d04ea9bacb94c453d0e5f457b6aa075d24048e0b519a7b719034f13f708f6c21fa7fccd51670c5

    • memory/1828-15-0x0000000073F00000-0x00000000744B1000-memory.dmp

      Filesize

      5.7MB

    • memory/1828-0-0x0000000073F02000-0x0000000073F03000-memory.dmp

      Filesize

      4KB

    • memory/1828-2-0x0000000073F00000-0x00000000744B1000-memory.dmp

      Filesize

      5.7MB

    • memory/1828-1-0x0000000073F00000-0x00000000744B1000-memory.dmp

      Filesize

      5.7MB

    • memory/4044-19-0x0000000073F00000-0x00000000744B1000-memory.dmp

      Filesize

      5.7MB

    • memory/4044-20-0x0000000073F00000-0x00000000744B1000-memory.dmp

      Filesize

      5.7MB

    • memory/4044-21-0x0000000073F00000-0x00000000744B1000-memory.dmp

      Filesize

      5.7MB

    • memory/4044-18-0x0000000073F00000-0x00000000744B1000-memory.dmp

      Filesize

      5.7MB

    • memory/4044-17-0x0000000073F00000-0x00000000744B1000-memory.dmp

      Filesize

      5.7MB

    • memory/4044-16-0x0000000073F00000-0x00000000744B1000-memory.dmp

      Filesize

      5.7MB