Resubmissions

08-11-2024 20:42

241108-zg6dqszbpr 10

08-11-2024 18:49

241108-xgkqxsxflj 10

Analysis

  • max time kernel
    1800s
  • max time network
    1787s
  • platform
    windows10-ltsc 2021_x64
  • resource
    win10ltsc2021-20241023-en
  • resource tags

    arch:x64arch:x86image:win10ltsc2021-20241023-enlocale:en-usos:windows10-ltsc 2021-x64system
  • submitted
    08-11-2024 20:42

General

  • Target

    nigger1243.exe

  • Size

    68KB

  • MD5

    26a3d43a396cdab7acaa54d1e1d844d7

  • SHA1

    0124da7710299088ab4c821ba9f0a0caf2536447

  • SHA256

    8b058d5f1b9a2e7630a95220b00920720e9172057d3d33c42cf36a2af79c34d2

  • SHA512

    e232684f054ebd043a2b93eabf10501f8b481f674056f3a1f51d07da7d355baea6b58bf86151d7d34f4c36597b27c3155e3eaba4062616de26581857a48f31bb

  • SSDEEP

    1536:oatJm9NtJL7ntbirB6oQMxR86j4DumOI8cudzG:oW63biEoRxRtIumOI3uxG

Malware Config

Extracted

Family

xworm

C2

conviction-48908.portmap.host:22717

Attributes
  • Install_directory

    %AppData%

  • install_file

    Windows Updater.exe

Signatures

  • Detect Xworm Payload 2 IoCs
  • Xworm

    Xworm is a remote access trojan written in C#.

  • Xworm family
  • Command and Scripting Interpreter: PowerShell 1 TTPs 4 IoCs

    Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Drops startup file 2 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Checks SCSI registry key(s) 3 TTPs 3 IoCs

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

  • Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of FindShellTrayWindow 64 IoCs
  • Suspicious use of SendNotifyMessage 64 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 10 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\nigger1243.exe
    "C:\Users\Admin\AppData\Local\Temp\nigger1243.exe"
    1⤵
    • Checks computer location settings
    • Drops startup file
    • Adds Run key to start application
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:3384
    • 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\nigger1243.exe'
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:844
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'nigger1243.exe'
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:3496
    • 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\Windows Updater.exe'
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:5004
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'Windows Updater.exe'
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      PID:2568
    • C:\Windows\System32\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /create /f /RL HIGHEST /sc minute /mo 1 /tn "Windows Updater" /tr "C:\Users\Admin\AppData\Roaming\Windows Updater.exe"
      2⤵
      • Scheduled Task/Job: Scheduled Task
      PID:3752
  • C:\Windows\system32\taskmgr.exe
    "C:\Windows\system32\taskmgr.exe" /4
    1⤵
    • Checks SCSI registry key(s)
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: GetForegroundWindowSpam
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SendNotifyMessage
    PID:1160

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

    f0f59cccd39a3694e0e6dfd44d0fa76d

    SHA1

    fccd7911d463041e1168431df8823e4c4ea387c1

    SHA256

    70466c7f3a911368d653396fdd68f993322c69e1797b492ca00f8be34b7f3401

    SHA512

    5c726e1e28cb9c0c3ab963fbfbf471c6033839f3e535a3811581fdaa4da17175e5a8a8be84a4fccd99b81e048058e51d230ff3836e3ec920057a1b1676110bee

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

    Filesize

    1KB

    MD5

    92f2d106b294940fb58c89949c2ad522

    SHA1

    b36938ba43a62d8961c5577f2dd9a79a2a61fe0e

    SHA256

    c0c3a0c4edd0d5b0a90d3fe3febfe0a2162df243a160e681e24d1a9b259b0f93

    SHA512

    0a6700ab649ea1bbedb68873ece61cba3513f820471f1128b0a89ff7e27397d71f814bb66a14f09b5f6dbc21dbbbe32f49b60de3f5c9f3124f296ab658118cbd

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

    Filesize

    1KB

    MD5

    f373b9175d80c2734bbd7e42e1d4ab0e

    SHA1

    9d93a3d846807b1659abed3944e74ac2bb77fee3

    SHA256

    7220ec92d2d24a1d8f9402c1d18f19152f2027a0f135bbe3e97b3857ed021656

    SHA512

    12a60ed507e0b753d5acb95044cf1446957d700db3ba3fde64941a98cb0815b1a0da92e8bcfaf66ca3fdbc225f2667040399670ff15fb4419b58b86e6425ec87

  • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_3cb3znzh.1qe.ps1

    Filesize

    60B

    MD5

    d17fe0a3f47be24a6453e9ef58c94641

    SHA1

    6ab83620379fc69f80c0242105ddffd7d98d5d9d

    SHA256

    96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

    SHA512

    5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

  • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Windows Updater.lnk

    Filesize

    813B

    MD5

    84b3b4577db671c6580b93db6ccea7b4

    SHA1

    9b13dcfc5a3d8e9c812135587fee7a66cfd928c7

    SHA256

    7d38cffdd755feadf0f8c7178543b57493822f954423e3588b7e90445e974399

    SHA512

    668c0deae3a34f9c233545e2271b58eff6cdb6b69c374bcd8180dae9c3f2c99669db9ed81a1e6b221808d9a92d2a2d98cc6cb2b86eec8035f0b88d8c18a2511c

  • C:\Users\Admin\AppData\Roaming\Windows Updater.exe

    Filesize

    68KB

    MD5

    26a3d43a396cdab7acaa54d1e1d844d7

    SHA1

    0124da7710299088ab4c821ba9f0a0caf2536447

    SHA256

    8b058d5f1b9a2e7630a95220b00920720e9172057d3d33c42cf36a2af79c34d2

    SHA512

    e232684f054ebd043a2b93eabf10501f8b481f674056f3a1f51d07da7d355baea6b58bf86151d7d34f4c36597b27c3155e3eaba4062616de26581857a48f31bb

  • memory/844-14-0x00007FF847700000-0x00007FF8481C2000-memory.dmp

    Filesize

    10.8MB

  • memory/844-16-0x00007FF847700000-0x00007FF8481C2000-memory.dmp

    Filesize

    10.8MB

  • memory/844-19-0x00007FF847700000-0x00007FF8481C2000-memory.dmp

    Filesize

    10.8MB

  • memory/844-15-0x00007FF847700000-0x00007FF8481C2000-memory.dmp

    Filesize

    10.8MB

  • memory/844-13-0x00007FF847700000-0x00007FF8481C2000-memory.dmp

    Filesize

    10.8MB

  • memory/844-12-0x00007FF847700000-0x00007FF8481C2000-memory.dmp

    Filesize

    10.8MB

  • memory/844-3-0x0000017CE42F0000-0x0000017CE4312000-memory.dmp

    Filesize

    136KB

  • memory/1160-71-0x00000252B6A30000-0x00000252B6A31000-memory.dmp

    Filesize

    4KB

  • memory/1160-68-0x00000252B6A30000-0x00000252B6A31000-memory.dmp

    Filesize

    4KB

  • memory/1160-61-0x00000252B6A30000-0x00000252B6A31000-memory.dmp

    Filesize

    4KB

  • memory/1160-62-0x00000252B6A30000-0x00000252B6A31000-memory.dmp

    Filesize

    4KB

  • memory/1160-60-0x00000252B6A30000-0x00000252B6A31000-memory.dmp

    Filesize

    4KB

  • memory/1160-66-0x00000252B6A30000-0x00000252B6A31000-memory.dmp

    Filesize

    4KB

  • memory/1160-72-0x00000252B6A30000-0x00000252B6A31000-memory.dmp

    Filesize

    4KB

  • memory/1160-67-0x00000252B6A30000-0x00000252B6A31000-memory.dmp

    Filesize

    4KB

  • memory/1160-70-0x00000252B6A30000-0x00000252B6A31000-memory.dmp

    Filesize

    4KB

  • memory/1160-69-0x00000252B6A30000-0x00000252B6A31000-memory.dmp

    Filesize

    4KB

  • memory/3384-59-0x00007FF847700000-0x00007FF8481C2000-memory.dmp

    Filesize

    10.8MB

  • memory/3384-0-0x00007FF847703000-0x00007FF847705000-memory.dmp

    Filesize

    8KB

  • memory/3384-58-0x00007FF847700000-0x00007FF8481C2000-memory.dmp

    Filesize

    10.8MB

  • memory/3384-1-0x0000000000620000-0x0000000000638000-memory.dmp

    Filesize

    96KB

  • memory/3384-77-0x000000001B5D0000-0x000000001B5DC000-memory.dmp

    Filesize

    48KB