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Analysis

  • max time kernel
    159s
  • max time network
    161s
  • platform
    windows10-ltsc 2021_x64
  • resource
    win10ltsc2021-20241211-en
  • resource tags

    arch:x64arch:x86image:win10ltsc2021-20241211-enlocale:en-usos:windows10-ltsc 2021-x64system
  • submitted
    07/01/2025, 15:52

General

  • Target

    MCLauncherAlpha.exe

  • Size

    25.2MB

  • MD5

    f7bd3d4ec4df43f3746dc4ee40182583

  • SHA1

    5bed51610fc47545a6d0b6a480c5fa79c93c41da

  • SHA256

    befad7b4dd58e164807088abae4876eec9cf413f997979b44d54522117a326de

  • SHA512

    d5a32bf7eff40e1d0e4c73c22afea7822fb34fb748962ce131788b345c741814ade9b2e7bf75b794bb63d0f6b415296e2f12a82ae0e7b594f9f1bedb4bc33026

  • SSDEEP

    12288:oxH78xBtJoZtL+EP8LhB0xfEY3Ymfh8Itps0Jd:oGB1I89B0xfEY3Ymfh8Itps0r

Malware Config

Extracted

Family

xworm

C2

who-disaster.gl.at.ply.gg:1754

Attributes
  • Install_directory

    %AppData%

  • install_file

    nursultan.exe

Signatures

  • Contains code to disable Windows Defender 1 IoCs

    A .NET executable tasked with disabling Windows Defender capabilities such as realtime monitoring, blocking at first seen, etc.

  • Detect Umbral payload 3 IoCs
  • Detect Xworm Payload 1 IoCs
  • Umbral

    Umbral stealer is an opensource moduler stealer written in C#.

  • Umbral family
  • Xworm

    Xworm is a remote access trojan written in C#.

  • Xworm family
  • Command and Scripting Interpreter: PowerShell 1 TTPs 8 IoCs

    Using powershell.exe command.

  • Drops file in Drivers directory 1 IoCs
  • Checks computer location settings 2 TTPs 2 IoCs

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

  • Drops startup file 2 IoCs
  • Executes dropped EXE 2 IoCs
  • Reads user/profile data of web browsers 3 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Adds Run key to start application 2 TTPs 1 IoCs
  • Legitimate hosting services abused for malware hosting/C2 1 TTPs 2 IoCs
  • Looks up external IP address via web service 1 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Enumerates physical storage devices 1 TTPs

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

  • 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.

  • System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 2 IoCs

    Adversaries may check for Internet connectivity on compromised systems.

  • Detects videocard installed 1 TTPs 1 IoCs

    Uses WMIC.exe to determine videocard installed.

  • Runs ping.exe 1 TTPs 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 40 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 38 IoCs
  • Views/modifies file attributes 1 TTPs 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\MCLauncherAlpha.exe
    "C:\Users\Admin\AppData\Local\Temp\MCLauncherAlpha.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:4668
    • C:\Users\Admin\AppData\Local\Temp\MClauncherBETA.exe
      "C:\Users\Admin\AppData\Local\Temp\MClauncherBETA.exe"
      2⤵
      • Checks computer location settings
      • Drops startup file
      • Executes dropped EXE
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:224
      • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
        "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Local\Temp\MClauncherBETA.exe'
        3⤵
        • Command and Scripting Interpreter: PowerShell
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:4252
      • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
        "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'MClauncherBETA.exe'
        3⤵
        • Command and Scripting Interpreter: PowerShell
        • Suspicious behavior: EnumeratesProcesses
        PID:4196
      • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
        "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Roaming\nursultan.exe'
        3⤵
        • Command and Scripting Interpreter: PowerShell
        • Suspicious behavior: EnumeratesProcesses
        PID:3056
      • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
        "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'nursultan.exe'
        3⤵
        • Command and Scripting Interpreter: PowerShell
        • Suspicious behavior: EnumeratesProcesses
        PID:3388
    • C:\Users\Admin\AppData\Local\Temp\Umbral.exe
      "C:\Users\Admin\AppData\Local\Temp\Umbral.exe"
      2⤵
      • Drops file in Drivers directory
      • Executes dropped EXE
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:4552
      • C:\Windows\System32\Wbem\wmic.exe
        "wmic.exe" csproduct get uuid
        3⤵
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:4812
      • C:\Windows\SYSTEM32\attrib.exe
        "attrib.exe" +h +s "C:\Users\Admin\AppData\Local\Temp\Umbral.exe"
        3⤵
        • Views/modifies file attributes
        PID:3704
      • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
        "powershell.exe" Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Local\Temp\Umbral.exe'
        3⤵
        • Command and Scripting Interpreter: PowerShell
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:4984
      • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
        "powershell.exe" Set-MpPreference -DisableIntrusionPreventionSystem $true -DisableIOAVProtection $true -DisableRealtimeMonitoring $true -DisableScriptScanning $true -EnableControlledFolderAccess Disabled -EnableNetworkProtection AuditMode -Force -MAPSReporting Disabled -SubmitSamplesConsent NeverSend && powershell Set-MpPreference -SubmitSamplesConsent 2
        3⤵
        • Command and Scripting Interpreter: PowerShell
        • Suspicious behavior: EnumeratesProcesses
        PID:2008
      • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
        "powershell.exe" Get-ItemPropertyValue -Path HKCU:SOFTWARE\Roblox\RobloxStudioBrowser\roblox.com -Name .ROBLOSECURITY
        3⤵
        • Command and Scripting Interpreter: PowerShell
        • Suspicious behavior: EnumeratesProcesses
        PID:1116
      • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
        "powershell.exe" Get-ItemPropertyValue -Path HKLN:SOFTWARE\Roblox\RobloxStudioBrowser\roblox.com -Name .ROBLOSECURITY
        3⤵
        • Suspicious behavior: EnumeratesProcesses
        PID:1524
      • C:\Windows\System32\Wbem\wmic.exe
        "wmic.exe" os get Caption
        3⤵
        • Suspicious behavior: EnumeratesProcesses
        PID:2868
      • C:\Windows\System32\Wbem\wmic.exe
        "wmic.exe" computersystem get totalphysicalmemory
        3⤵
        • Suspicious behavior: EnumeratesProcesses
        PID:1100
      • C:\Windows\System32\Wbem\wmic.exe
        "wmic.exe" csproduct get uuid
        3⤵
        • Suspicious behavior: EnumeratesProcesses
        PID:2492
      • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
        "powershell.exe" Get-ItemPropertyValue -Path 'HKLM:System\CurrentControlSet\Control\Session Manager\Environment' -Name PROCESSOR_IDENTIFIER
        3⤵
        • Command and Scripting Interpreter: PowerShell
        • Suspicious behavior: EnumeratesProcesses
        PID:3452
      • C:\Windows\System32\Wbem\wmic.exe
        "wmic" path win32_VideoController get name
        3⤵
        • Detects videocard installed
        • Suspicious behavior: EnumeratesProcesses
        PID:988
      • C:\Windows\SYSTEM32\cmd.exe
        "cmd.exe" /c ping localhost && del /F /A h "C:\Users\Admin\AppData\Local\Temp\Umbral.exe" && pause
        3⤵
        • System Network Configuration Discovery: Internet Connection Discovery
        • Suspicious use of WriteProcessMemory
        PID:2468
        • C:\Windows\system32\PING.EXE
          ping localhost
          4⤵
          • System Network Configuration Discovery: Internet Connection Discovery
          • Runs ping.exe
          PID:4812

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\powershell.exe.log

    Filesize

    3KB

    MD5

    3eb3833f769dd890afc295b977eab4b4

    SHA1

    e857649b037939602c72ad003e5d3698695f436f

    SHA256

    c485a6e2fd17c342fca60060f47d6a5655a65a412e35e001bb5bf88d96e6e485

    SHA512

    c24bbc8f278478d43756807b8c584d4e3fb2289db468bc92986a489f74a8da386a667a758360a397e77e018e363be8912ac260072fa3e31117ad0599ac749e72

  • C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

    Filesize

    1KB

    MD5

    dd898d1b5765d2c6af25566dac42d5e3

    SHA1

    6bc216917284103ef14d7335b60e5c481732c381

    SHA256

    67ef10f50dc2bb3bb0cb1e655275e97ab3c25aeed9a0860923a1965b2caf7a75

    SHA512

    467b3900a18fd494aa64167960614e8b324f11d7d1702e7751c8d8a190538b80ca30f602f92a813e8e3aa18f643055416492ef58886c9e30e274a12d1134428e

  • C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

    Filesize

    1KB

    MD5

    8e1fdd1b66d2fee9f6a052524d4ddca5

    SHA1

    0a9d0994559d1be2eecd8b0d6960540ca627bdb6

    SHA256

    4cc7c1b79d1b48582d4dc27ca8c31457b9bf2441deb7914399bb9e6863f18b13

    SHA512

    5a5494b878b08e8515811ab7a3d68780dac7423f5562477d98249a8bedf7ec98567b7cd5d4c6967d6bc63f2d6d9b7da9a65e0eb29d4b955026b469b5b598d1f3

  • C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

    Filesize

    1KB

    MD5

    1084e4337b8976d5176147c43669c932

    SHA1

    cd424c0dd9058ea91d0dbecf2c9c6648949b4ffb

    SHA256

    0cccb48bc934e92e50dd2a14086ae5524e4b47e84d7ab966b24a307dcb4f6044

    SHA512

    2caa2b93e0c24510a5ce05855bf74027d75ba2d92bd80e256d5b5e5408fff9076e38574b72ae4c4f86c1d7d34bba5249dea4d665dac4477c1a9b5912bad8b1ef

  • C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

    Filesize

    1KB

    MD5

    2931aea7871334d4cddec682210d648c

    SHA1

    2496cfc5d74a33f4dd1c361b5ae4fb74ef0e4eea

    SHA256

    a033a94d0edba753e8c9b10a6a1dbf04969ff6d16e72e7aadf66e830c469e54d

    SHA512

    bd82837e9bfc3b905c50a5179c82866e1b9a9db9ecc35ea120769b89335cb7a58722f52aff284326ca145565b64019fac221896ea4bf9e4e8a761a69c515df57

  • C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

    Filesize

    1KB

    MD5

    c67441dfa09f61bca500bb43407c56b8

    SHA1

    5a56cf7cbeb48c109e2128c31b681fac3959157b

    SHA256

    63082da456c124d0bc516d2161d1613db5f3008d903e4066d2c7b4e90b435f33

    SHA512

    325de8b718b3a01df05e20e028c5882240e5fd2e96c771361b776312923ff178f27494a1f5249bf6d7365a99155eb8735a51366e85597008e6a10462e63ee0e8

  • C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

    Filesize

    948B

    MD5

    1297ab1638f5754968fea0e770ae6b77

    SHA1

    31d494d49591b10227e9e20441102f15e089c0eb

    SHA256

    9ccaa5d197966ed0d707103be05ab3e5b48f9992545d743d5bc8fa2a00d905f8

    SHA512

    105ad4ced4851c6b78e5a8038b1c5584ecea0eb32087994f7fefde86207961739b5d6ed64f64d9e5298b1c149069c6cb3b7658e56bb329ed79f5ff6a25c18f3f

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

    Filesize

    25.0MB

    MD5

    60cb9c4ee3d76178e3d3ed6a976b2b07

    SHA1

    c3fae3819b20ae35bbf6e553b36abc740c53878d

    SHA256

    faae0bb980abf5dc0bb4b2137aa94563cb4a7cbd4baeba321811879a086e53a1

    SHA512

    3e3238fe61efdfc4fc2d990b1ccd4ddd05aec72ec9c40032e370b6dbe9e238a5ba352de09a257762e02f75b195ed6e54f7121f9c95a85a2799092ceb22812b21

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

    Filesize

    232KB

    MD5

    274979bece73b8dcfcec48e29c3faac6

    SHA1

    e132c92ef72fb91dc781723f1228a6e0917649cd

    SHA256

    ffc855e7ccf7a3d7982e18c62ecbf7a2daf01ed769c272b90b039b3c934d91cc

    SHA512

    562b29a9797154d7bcebe87babf79f15dbb345f69cdb165efca4ee9cf370457c37df8d30e85258546bbbac35ce5cf26b3d47326867764ccc0857ab75c1beed53

  • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_oes01ypr.pee.ps1

    Filesize

    60B

    MD5

    d17fe0a3f47be24a6453e9ef58c94641

    SHA1

    6ab83620379fc69f80c0242105ddffd7d98d5d9d

    SHA256

    96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

    SHA512

    5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

  • memory/224-152-0x00007FFF6A4F3000-0x00007FFF6A4F5000-memory.dmp

    Filesize

    8KB

  • memory/224-31-0x00000000006A0000-0x00000000006D4000-memory.dmp

    Filesize

    208KB

  • memory/224-154-0x0000000001060000-0x000000000106E000-memory.dmp

    Filesize

    56KB

  • memory/224-20-0x00007FFF6A4F3000-0x00007FFF6A4F5000-memory.dmp

    Filesize

    8KB

  • memory/4552-128-0x0000022F51520000-0x0000022F51532000-memory.dmp

    Filesize

    72KB

  • memory/4552-80-0x0000022F37380000-0x0000022F3739E000-memory.dmp

    Filesize

    120KB

  • memory/4552-79-0x0000022F514B0000-0x0000022F51500000-memory.dmp

    Filesize

    320KB

  • memory/4552-78-0x0000022F51660000-0x0000022F516D6000-memory.dmp

    Filesize

    472KB

  • memory/4552-127-0x0000022F37560000-0x0000022F3756A000-memory.dmp

    Filesize

    40KB

  • memory/4552-151-0x00007FFF6A4F0000-0x00007FFF6AFB2000-memory.dmp

    Filesize

    10.8MB

  • memory/4552-32-0x00007FFF6A4F0000-0x00007FFF6AFB2000-memory.dmp

    Filesize

    10.8MB

  • memory/4552-29-0x0000022F36EC0000-0x0000022F36F00000-memory.dmp

    Filesize

    256KB

  • memory/4668-30-0x0000000000400000-0x0000000001D44000-memory.dmp

    Filesize

    25.3MB

  • memory/4984-42-0x000002894B770000-0x000002894B792000-memory.dmp

    Filesize

    136KB