Analysis

  • max time kernel
    150s
  • max time network
    150s
  • platform
    windows11-21h2_x64
  • resource
    win11-20250207-en
  • resource tags

    arch:x64arch:x86image:win11-20250207-enlocale:en-usos:windows11-21h2-x64system
  • submitted
    08-02-2025 08:43

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
  • 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.

  • 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 37 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⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:1792
    • 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:1408
      • 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:4684
  • C:\Program Files (x86)\Microsoft\EdgeUpdate\MicrosoftEdgeUpdate.exe
    "C:\Program Files (x86)\Microsoft\EdgeUpdate\MicrosoftEdgeUpdate.exe" /ping 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-PG9lbSBwcm9kdWN0X21hbnVmYWN0dXJlcj0iIiBwcm9kdWN0X25hbWU9IiIvPjxleHAgZXRhZz0iJnF1b3Q7RSt4YkF6Nlk2c1UxMjg5YlM2cWw0VlJMYmtqZkJVR1RNSnNqckhyNDRpST0mcXVvdDsiLz48YXBwIGFwcGlkPSJ7OEE2OUQzNDUtRDU2NC00NjNjLUFGRjEtQTY5RDlFNTMwRjk2fSIgdmVyc2lvbj0iMTIzLjAuNjMxMi4xMjMiIG5leHR2ZXJzaW9uPSIiIGxhbmc9ImVuIiBicmFuZD0iR0dMUyIgY2xpZW50PSIiIGluc3RhbGxhZ2U9IjAiIGluc3RhbGxkYXRldGltZT0iMTczODk1NzQxMiIgb29iZV9pbnN0YWxsX3RpbWU9IjEzMzgzNDMwMDQxNTY3MDAwMCI-PGV2ZW50IGV2ZW50dHlwZT0iMzEiIGV2ZW50cmVzdWx0PSIxIiBlcnJvcmNvZGU9IjAiIGV4dHJhY29kZTE9IjIxNzk4NjIiIHN5c3RlbV91cHRpbWVfdGlja3M9IjUxMjM2NzM2ODYiLz48L2FwcD48L3JlcXVlc3Q-
    1⤵
    • System Location Discovery: System Language Discovery
    • System Network Configuration Discovery: Internet Connection Discovery
    PID:3824
  • C:\Program Files (x86)\Microsoft\EdgeUpdate\Install\{53CD9FD4-27D2-4231-A08E-A0406075F18D}\MicrosoftEdge_X64_132.0.2957.140.exe
    "C:\Program Files (x86)\Microsoft\EdgeUpdate\Install\{53CD9FD4-27D2-4231-A08E-A0406075F18D}\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:2064
    • C:\Program Files (x86)\Microsoft\EdgeUpdate\Install\{53CD9FD4-27D2-4231-A08E-A0406075F18D}\EDGEMITMP_C8124.tmp\setup.exe
      "C:\Program Files (x86)\Microsoft\EdgeUpdate\Install\{53CD9FD4-27D2-4231-A08E-A0406075F18D}\EDGEMITMP_C8124.tmp\setup.exe" --install-archive="C:\Program Files (x86)\Microsoft\EdgeUpdate\Install\{53CD9FD4-27D2-4231-A08E-A0406075F18D}\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:4740
      • C:\Program Files (x86)\Microsoft\EdgeUpdate\Install\{53CD9FD4-27D2-4231-A08E-A0406075F18D}\EDGEMITMP_C8124.tmp\setup.exe
        "C:\Program Files (x86)\Microsoft\EdgeUpdate\Install\{53CD9FD4-27D2-4231-A08E-A0406075F18D}\EDGEMITMP_C8124.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\{53CD9FD4-27D2-4231-A08E-A0406075F18D}\EDGEMITMP_C8124.tmp\setup.exe" --annotation=plat=Win64 --annotation=prod=Edge --annotation=ver=132.0.2957.140 --initial-client-data=0x23c,0x240,0x244,0x218,0x248,0x7ff7d132a818,0x7ff7d132a824,0x7ff7d132a830
        3⤵
        • Executes dropped EXE
        • Drops file in Windows directory
        PID:2096
      • C:\Program Files (x86)\Microsoft\EdgeUpdate\Install\{53CD9FD4-27D2-4231-A08E-A0406075F18D}\EDGEMITMP_C8124.tmp\setup.exe
        "C:\Program Files (x86)\Microsoft\EdgeUpdate\Install\{53CD9FD4-27D2-4231-A08E-A0406075F18D}\EDGEMITMP_C8124.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 Program Files directory
        • Drops file in Windows directory
        • Modifies data under HKEY_USERS
        • Suspicious use of WriteProcessMemory
        PID:2452
        • C:\Program Files (x86)\Microsoft\EdgeUpdate\Install\{53CD9FD4-27D2-4231-A08E-A0406075F18D}\EDGEMITMP_C8124.tmp\setup.exe
          "C:\Program Files (x86)\Microsoft\EdgeUpdate\Install\{53CD9FD4-27D2-4231-A08E-A0406075F18D}\EDGEMITMP_C8124.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\{53CD9FD4-27D2-4231-A08E-A0406075F18D}\EDGEMITMP_C8124.tmp\setup.exe" --annotation=plat=Win64 --annotation=prod=Edge --annotation=ver=132.0.2957.140 --initial-client-data=0x23c,0x240,0x244,0x218,0x248,0x7ff7d132a818,0x7ff7d132a824,0x7ff7d132a830
          4⤵
          • Executes dropped EXE
          • Drops file in Windows directory
          PID:3828
      • 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:4624
        • 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=0x23c,0x240,0x244,0x218,0x248,0x7ff71b35a818,0x7ff71b35a824,0x7ff71b35a830
          4⤵
          • Executes dropped EXE
          • Drops file in Windows directory
          PID:3472
      • 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 Program Files directory
        • Drops file in Windows directory
        • Suspicious use of WriteProcessMemory
        PID:2752
        • 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=0x23c,0x240,0x244,0x218,0x248,0x7ff71b35a818,0x7ff71b35a824,0x7ff71b35a830
          4⤵
          • Executes dropped EXE
          • Drops file in Windows directory
          PID:1864
      • 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 Windows directory
        • Suspicious use of WriteProcessMemory
        PID:2832
        • 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=0x23c,0x240,0x244,0x218,0x248,0x7ff71b35a818,0x7ff71b35a824,0x7ff71b35a830
          4⤵
          • Executes dropped EXE
          • Drops file in Windows directory
          PID:2256

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Program Files (x86)\Microsoft\EdgeUpdate\Install\{53CD9FD4-27D2-4231-A08E-A0406075F18D}\EDGEMITMP_C8124.tmp\setup.exe

    Filesize

    6.6MB

    MD5

    b4c8ad75087b8634d4f04dc6f92da9aa

    SHA1

    7efaa2472521c79d58c4ef18a258cc573704fb5d

    SHA256

    522a25568bb503cf8b44807661f31f0921dee91d37691bf399868733205690bf

    SHA512

    5094505b33a848badcffd6b3b93aad9ad73f391e201dee052376c4f8573ba351f0b8c102131216088ffb38d0ed7b5fe70ba95c3ac2c33a50c993584fe7c435e3

  • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe

    Filesize

    3.7MB

    MD5

    3646786aea064c0845f5bb1b8e976985

    SHA1

    a31ba2d2192898d4c0a01511395bdf87b0e53873

    SHA256

    a129a6de7b90500483226192b260eaca1ee116a007771d421aa3eee38af48d6f

    SHA512

    145f8abf2ecffd8ecc3745dbd9ab2e360826fa46d6f21dbebece7802b9b5980f4ab19e2dfd180ce0cfb84366f3ac5c87cd1b74a085e1a0dd620b6c097900e0f4

  • 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

    72KB

    MD5

    5db0732a17944ff7854bd914066c5bf9

    SHA1

    a4487e01a37b92923d20f5f15f98d8e13b50a6c9

    SHA256

    6d097423bf0a8901ed699266dfd796fffe395bcea2a581550b4097cb0b1f0341

    SHA512

    e88a5bc0c9281c1f3b792fe5f2a4a57b339f911dfd4b30b26fa40682c1913f574b2f654f266c414e794b5fd25a0064c841f1a4cd9ab688b64778c94d740cd555

  • C:\Windows\SystemTemp\msedge_installer.log

    Filesize

    104KB

    MD5

    9bf2a68e4f112ad10dd64cca6a8b43e7

    SHA1

    1735be7132e68ef03c85f0cf0b1dcd02e3fc2c89

    SHA256

    6c3f97af587a33e1779df38cea156e5e7379112a49d5495a58fa6b5240dcb13b

    SHA512

    17fbb9a140c91f3d8750c8bd5a741e6fb31d018721fa5e9435b2d931239cac87d15854342887cac1bf1ddb033dea0f5f2ad3bb460e9abe8cc9ee7901ef36fa29

  • C:\Windows\SystemTemp\msedge_installer.log

    Filesize

    105KB

    MD5

    9fd8fd3f7db32cf5c827165d165bb5f7

    SHA1

    185beb5ffc494aa722a637402a27a5970a928641

    SHA256

    0b077c0e0ae94eb77a20a56eec36d677ff66b542069c959f9b77d9e847bc85cd

    SHA512

    c16f56e7df3c80b6aef3efd5e9ce547bbd7d917afa80b3b4a9c7c9a7763369fd81e42d2d3424c2196c62d06344970e4333a708d0336cbc45054e097c7be6c319

  • memory/1408-17-0x0000000073970000-0x0000000073F21000-memory.dmp

    Filesize

    5.7MB

  • memory/1408-18-0x0000000073970000-0x0000000073F21000-memory.dmp

    Filesize

    5.7MB

  • memory/1408-16-0x0000000073970000-0x0000000073F21000-memory.dmp

    Filesize

    5.7MB

  • memory/1408-14-0x0000000073970000-0x0000000073F21000-memory.dmp

    Filesize

    5.7MB

  • memory/1408-13-0x0000000073970000-0x0000000073F21000-memory.dmp

    Filesize

    5.7MB

  • memory/1792-0-0x0000000073971000-0x0000000073972000-memory.dmp

    Filesize

    4KB

  • memory/1792-12-0x0000000073970000-0x0000000073F21000-memory.dmp

    Filesize

    5.7MB

  • memory/1792-2-0x0000000073970000-0x0000000073F21000-memory.dmp

    Filesize

    5.7MB

  • memory/1792-1-0x0000000073970000-0x0000000073F21000-memory.dmp

    Filesize

    5.7MB