Analysis

  • max time kernel
    146s
  • max time network
    138s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240426-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
  • submitted
    30-05-2024 14:18

General

  • Target

    2031gojosatoru.exe

  • Size

    79KB

  • MD5

    f686daf477cd61c3eb72515148c22e05

  • SHA1

    a3689bf018dd135b924a4a98f82613ea2cc83b3a

  • SHA256

    552395ebc69975a174f299e3fac4909585eda51ed1554281165ba640f53f9679

  • SHA512

    cd6af2ebccfb7671965c255ad54f0e651c2c1f6ffb9ce832f39ac8998adb2bae42df6251730be2c884d75485890c30801d173675259e113b30c782ec7cccf153

  • SSDEEP

    1536:cqdGeH5wKOnDvi9r3JP7FiXqbU4s29iobdAJ6QOBWoFEBqPoUC:iP9D4317FkqbUzKdWOBWoF6Hj

Malware Config

Extracted

Family

xworm

C2

19.ip.gl.ply.gg:45758

ads-enabled.gl.at.ply.gg:45758

Attributes
  • Install_directory

    %AppData%

  • install_file

    XClient.exe

Signatures

  • Detect Xworm Payload 2 IoCs
  • Xworm

    Xworm is a remote access trojan written in C#.

  • 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
  • Executes dropped EXE 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).

  • Creates scheduled task(s) 1 TTPs 1 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 9 IoCs
  • Suspicious use of AdjustPrivilegeToken 8 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\2031gojosatoru.exe
    "C:\Users\Admin\AppData\Local\Temp\2031gojosatoru.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:388
    • 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\2031gojosatoru.exe'
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:4928
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess '2031gojosatoru.exe'
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:4632
    • 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\XClient.exe'
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:3332
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'XClient.exe'
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:3136
    • C:\Windows\System32\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /create /f /RL HIGHEST /sc minute /mo 1 /tn "XClient" /tr "C:\Users\Admin\AppData\Roaming\XClient.exe"
      2⤵
      • Creates scheduled task(s)
      PID:2948
  • C:\Users\Admin\AppData\Roaming\XClient.exe
    C:\Users\Admin\AppData\Roaming\XClient.exe
    1⤵
    • Executes dropped EXE
    • Suspicious use of AdjustPrivilegeToken
    PID:532
  • C:\Users\Admin\AppData\Roaming\XClient.exe
    C:\Users\Admin\AppData\Roaming\XClient.exe
    1⤵
    • Executes dropped EXE
    • Suspicious use of AdjustPrivilegeToken
    PID:4560

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    654B

    MD5

    2ff39f6c7249774be85fd60a8f9a245e

    SHA1

    684ff36b31aedc1e587c8496c02722c6698c1c4e

    SHA256

    e1b91642d85d98124a6a31f710e137ab7fd90dec30e74a05ab7fcf3b7887dced

    SHA512

    1d7e8b92ef4afd463d62cfa7e8b9d1799db5bf2a263d3cd7840df2e0a1323d24eb595b5f8eb615c6cb15f9e3a7b4fc99f8dd6a3d34479222e966ec708998aed1

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

    Filesize

    2KB

    MD5

    d85ba6ff808d9e5444a4b369f5bc2730

    SHA1

    31aa9d96590fff6981b315e0b391b575e4c0804a

    SHA256

    84739c608a73509419748e4e20e6cc4e1846056c3fe1929a8300d5a1a488202f

    SHA512

    8c414eb55b45212af385accc16d9d562adba2123583ce70d22b91161fe878683845512a78f04dedd4ea98ed9b174dbfa98cf696370598ad8e6fbd1e714f1f249

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

    Filesize

    944B

    MD5

    cadef9abd087803c630df65264a6c81c

    SHA1

    babbf3636c347c8727c35f3eef2ee643dbcc4bd2

    SHA256

    cce65b73cdfe9304bcd5207913e8b60fb69faa20cd3b684f2b0343b755b99438

    SHA512

    7278aa87124abb382d9024a645e881e7b7cf1b84e8894943b36e018dbf0399e6858392f77980b599fa5488e2e21bf757a0702fe6419417edac93b68e0c2ec085

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

    Filesize

    944B

    MD5

    a7cc007980e419d553568a106210549a

    SHA1

    c03099706b75071f36c3962fcc60a22f197711e0

    SHA256

    a5735921fc72189c8bf577f3911486cf031708dc8d6bc764fe3e593c0a053165

    SHA512

    b9aaf29403c467daef80a1ae87478afc33b78f4e1ca16189557011bb83cf9b3e29a0f85c69fa209c45201fb28baca47d31756eee07b79c6312c506e8370f7666

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

    Filesize

    944B

    MD5

    2524e72b0573fa94e9cb8089728a4b47

    SHA1

    3d5c4dfd6e7632153e687ee866f8ecc70730a0f1

    SHA256

    fafde5bec1db5e838e0a43603714686f9911b7aaa8d8ff0fe40f9496a7b38747

    SHA512

    99a7593a82353f792a58ea99196330aaa8c34ac2f616f0be4b4ca4f76388485866ba96dc62d9b8e7627c1df6a1f74111342307ba82400adce5adac68b47a6fa8

  • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_jcmsza0a.ukt.ps1

    Filesize

    60B

    MD5

    d17fe0a3f47be24a6453e9ef58c94641

    SHA1

    6ab83620379fc69f80c0242105ddffd7d98d5d9d

    SHA256

    96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

    SHA512

    5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

  • C:\Users\Admin\AppData\Roaming\XClient.exe

    Filesize

    79KB

    MD5

    f686daf477cd61c3eb72515148c22e05

    SHA1

    a3689bf018dd135b924a4a98f82613ea2cc83b3a

    SHA256

    552395ebc69975a174f299e3fac4909585eda51ed1554281165ba640f53f9679

    SHA512

    cd6af2ebccfb7671965c255ad54f0e651c2c1f6ffb9ce832f39ac8998adb2bae42df6251730be2c884d75485890c30801d173675259e113b30c782ec7cccf153

  • memory/388-56-0x00007FFD5DB13000-0x00007FFD5DB15000-memory.dmp

    Filesize

    8KB

  • memory/388-55-0x00007FFD5DB10000-0x00007FFD5E5D1000-memory.dmp

    Filesize

    10.8MB

  • memory/388-0-0x00007FFD5DB13000-0x00007FFD5DB15000-memory.dmp

    Filesize

    8KB

  • memory/388-57-0x00007FFD5DB10000-0x00007FFD5E5D1000-memory.dmp

    Filesize

    10.8MB

  • memory/388-1-0x0000000000810000-0x000000000082A000-memory.dmp

    Filesize

    104KB

  • memory/4928-16-0x00007FFD5DB10000-0x00007FFD5E5D1000-memory.dmp

    Filesize

    10.8MB

  • memory/4928-13-0x00007FFD5DB10000-0x00007FFD5E5D1000-memory.dmp

    Filesize

    10.8MB

  • memory/4928-12-0x00007FFD5DB10000-0x00007FFD5E5D1000-memory.dmp

    Filesize

    10.8MB

  • memory/4928-11-0x0000012026590000-0x00000120265B2000-memory.dmp

    Filesize

    136KB