Analysis

  • max time kernel
    150s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240508-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
  • submitted
    19-05-2024 08:09

General

  • Target

    vamicheatloader.exe

  • Size

    77KB

  • MD5

    b074da06d9857ac5261d62b2446774a4

  • SHA1

    7137511fab7f416097aafba40cb0b6becf6c9d6e

  • SHA256

    d75b041e9c687214d97c0110be211d91d0242115475171620a8791f6e79bfc58

  • SHA512

    04faf087159d02915d9981f4666b2dcc1441f6212f9fe8ef8750e1b69436159ac1063c9a2191f59c77864b7688955e3f5e9db7fe0c5f50791bcbb52c49fa3367

  • SSDEEP

    1536:+dWwWpRvrlUSvelsuFXvnd4hbAbYUU0XXS06YTUgOrEKvN:I2TSSmnZvGAbD5iST/Or9N

Malware Config

Extracted

Family

xworm

C2

rooms-belkin.gl.at.ply.gg:48066

Attributes
  • Install_directory

    %AppData%

  • install_file

    svchost.exe

Signatures

  • Detect Xworm Payload 2 IoCs
  • ModiLoader, DBatLoader

    ModiLoader is a Delphi loader that misuses cloud services to download other malicious families.

  • Xworm

    Xworm is a remote access trojan written in C#.

  • ModiLoader Second Stage 1 IoCs
  • 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.

  • Modifies Installed Components in the registry 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
  • Executes dropped EXE 4 IoCs
  • UPX packed file 3 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • Adds Run key to start application 2 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).

  • Creates scheduled task(s) 1 TTPs 1 IoCs

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

  • Modifies registry class 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 13 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 13 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\vamicheatloader.exe
    "C:\Users\Admin\AppData\Local\Temp\vamicheatloader.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:1264
    • 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\vamicheatloader.exe'
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:3296
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'vamicheatloader.exe'
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:4352
    • 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\svchost.exe'
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:5116
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'svchost.exe'
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:4648
    • C:\Windows\System32\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /create /f /RL HIGHEST /sc minute /mo 1 /tn "svchost" /tr "C:\Users\Admin\AppData\Roaming\svchost.exe"
      2⤵
      • Creates scheduled task(s)
      PID:1108
    • C:\Users\Admin\AppData\Local\Temp\uvkgar.exe
      "C:\Users\Admin\AppData\Local\Temp\uvkgar.exe"
      2⤵
      • Executes dropped EXE
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      PID:2848
  • C:\Users\Admin\AppData\Roaming\svchost.exe
    C:\Users\Admin\AppData\Roaming\svchost.exe
    1⤵
    • Executes dropped EXE
    • Suspicious use of AdjustPrivilegeToken
    PID:4848
  • C:\Windows\explorer.exe
    explorer.exe
    1⤵
    • Modifies Installed Components in the registry
    • Modifies registry class
    • Suspicious use of AdjustPrivilegeToken
    PID:640
  • C:\Users\Admin\AppData\Roaming\svchost.exe
    C:\Users\Admin\AppData\Roaming\svchost.exe
    1⤵
    • Executes dropped EXE
    • Suspicious use of AdjustPrivilegeToken
    PID:4380
  • C:\Users\Admin\AppData\Roaming\svchost.exe
    C:\Users\Admin\AppData\Roaming\svchost.exe
    1⤵
    • Executes dropped EXE
    • Suspicious use of AdjustPrivilegeToken
    PID:2200

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

    2KB

    MD5

    d85ba6ff808d9e5444a4b369f5bc2730

    SHA1

    31aa9d96590fff6981b315e0b391b575e4c0804a

    SHA256

    84739c608a73509419748e4e20e6cc4e1846056c3fe1929a8300d5a1a488202f

    SHA512

    8c414eb55b45212af385accc16d9d562adba2123583ce70d22b91161fe878683845512a78f04dedd4ea98ed9b174dbfa98cf696370598ad8e6fbd1e714f1f249

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

    Filesize

    654B

    MD5

    2ff39f6c7249774be85fd60a8f9a245e

    SHA1

    684ff36b31aedc1e587c8496c02722c6698c1c4e

    SHA256

    e1b91642d85d98124a6a31f710e137ab7fd90dec30e74a05ab7fcf3b7887dced

    SHA512

    1d7e8b92ef4afd463d62cfa7e8b9d1799db5bf2a263d3cd7840df2e0a1323d24eb595b5f8eb615c6cb15f9e3a7b4fc99f8dd6a3d34479222e966ec708998aed1

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

    Filesize

    944B

    MD5

    77d622bb1a5b250869a3238b9bc1402b

    SHA1

    d47f4003c2554b9dfc4c16f22460b331886b191b

    SHA256

    f97ff12a8abf4bf88bb6497bd2ac2da12628c8847a8ba5a9026bdbb76507cdfb

    SHA512

    d6789b5499f23c9035375a102271e17a8a82e57d6f5312fa24242e08a83efdeb8becb7622f55c4cf1b89c7d864b445df11f4d994cf7e2f87a900535bcca12fd9

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

    Filesize

    944B

    MD5

    b1a1d8b05525b7b0c5babfd80488c1f2

    SHA1

    c85bbd6b7d0143676916c20fd52720499c2bb5c6

    SHA256

    adad192fc86c2f939fd3f70cb9ad323139a4e100f7c90b4454e2c53bdbc9b705

    SHA512

    346c6513c1373bab58439e37d3f75de1c5c587d7eb27076cf696e885a027b3b38d70b585839d1a2e7f2270cdcf0dac8c1fdff799f3b1158242ae9e3364c2a06e

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

    Filesize

    944B

    MD5

    8f49943c6aa4efdb6eab45c5a45a267e

    SHA1

    dae54d660ee1a9cf5488bff0ae37e49fd7532c6b

    SHA256

    2971ed1f80e5bda6b3a2b03b9d8f75b57265dd3f2f443dbf685487fa5ee0c533

    SHA512

    1075a572c28c7095453ad22d3eadc5d5ba71592635670aa93cc28ea1e47dbe0c9c9612ef836fbcb971443dea305260eadbdd905ffa5a444ba10ca5f9a86eb5bf

  • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_xzowqelp.55r.ps1

    Filesize

    60B

    MD5

    d17fe0a3f47be24a6453e9ef58c94641

    SHA1

    6ab83620379fc69f80c0242105ddffd7d98d5d9d

    SHA256

    96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

    SHA512

    5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

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

    Filesize

    206KB

    MD5

    0cf4fe7f1d12a7dd703e09dcfd4d733b

    SHA1

    3c01c96d2120c5567e32fcfa293dfa60daeea289

    SHA256

    93c6910f522338836a99a7e52968718656514eed8afed1ce5a1eef8a42e37ce0

    SHA512

    878a54fe636c2ef836db64dd58dad9870827baf3084a6d346ebe35c624a115729f8d0ded4ae1b30c8749dacb2267f7813491e7a23e8f7e320395b85fc7d928cb

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

    Filesize

    77KB

    MD5

    b074da06d9857ac5261d62b2446774a4

    SHA1

    7137511fab7f416097aafba40cb0b6becf6c9d6e

    SHA256

    d75b041e9c687214d97c0110be211d91d0242115475171620a8791f6e79bfc58

    SHA512

    04faf087159d02915d9981f4666b2dcc1441f6212f9fe8ef8750e1b69436159ac1063c9a2191f59c77864b7688955e3f5e9db7fe0c5f50791bcbb52c49fa3367

  • memory/1264-2-0x00007FFB97D60000-0x00007FFB98821000-memory.dmp

    Filesize

    10.8MB

  • memory/1264-57-0x00007FFB97D63000-0x00007FFB97D65000-memory.dmp

    Filesize

    8KB

  • memory/1264-58-0x00007FFB97D60000-0x00007FFB98821000-memory.dmp

    Filesize

    10.8MB

  • memory/1264-0-0x00007FFB97D63000-0x00007FFB97D65000-memory.dmp

    Filesize

    8KB

  • memory/1264-62-0x0000000002C00000-0x0000000002C0C000-memory.dmp

    Filesize

    48KB

  • memory/1264-1-0x0000000000B70000-0x0000000000B8A000-memory.dmp

    Filesize

    104KB

  • memory/2848-70-0x0000000000400000-0x0000000000487000-memory.dmp

    Filesize

    540KB

  • memory/2848-73-0x0000000000400000-0x0000000000487000-memory.dmp

    Filesize

    540KB

  • memory/3296-15-0x00007FFB97D60000-0x00007FFB98821000-memory.dmp

    Filesize

    10.8MB

  • memory/3296-14-0x00007FFB97D60000-0x00007FFB98821000-memory.dmp

    Filesize

    10.8MB

  • memory/3296-9-0x000001BAB0EF0000-0x000001BAB0F12000-memory.dmp

    Filesize

    136KB

  • memory/3296-3-0x00007FFB97D60000-0x00007FFB98821000-memory.dmp

    Filesize

    10.8MB

  • memory/3296-18-0x00007FFB97D60000-0x00007FFB98821000-memory.dmp

    Filesize

    10.8MB