Analysis

  • max time kernel
    1045s
  • max time network
    1039s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20250217-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20250217-enlocale:en-usos:windows10-2004-x64system
  • submitted
    07/03/2025, 22:09

General

  • Target

    Solara.exe

  • Size

    84KB

  • MD5

    5f28174c6acb87d760005999e20c0d69

  • SHA1

    64a29e3fdfe41844cffc05082453b2d7fabf3b3f

  • SHA256

    24402c0bf86465d22e781b4e3b17b1b24b381e07e1f23d41919c73386939a130

  • SHA512

    f531cc1e1d33b9cf38c1f5087c4e1719186d6203855c96b57c01b7336ed84466cfaeb300ff0c4f36d15de5c8377dcafe2ffc675f96515ec0e89c34b01675027e

  • SSDEEP

    1536:JWoJxlSxcBQRBCujveaZAx0uUkrbp9n+bwUqMI6r6QOUIVAGEO/xTPEoW:/YKUCujv4xX7L+bwbDQOUImGEO/lW

Malware Config

Extracted

Family

xworm

Attributes
  • Install_directory

    %AppData%

  • install_file

    svchost.exe

  • pastebin_url

    https://pastebin.com/raw/FgmKAhUD

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 Xworm Payload 2 IoCs
  • Modifies Windows Defender Real-time Protection settings 3 TTPs 4 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
  • Executes dropped EXE 18 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Legitimate hosting services abused for malware hosting/C2 1 TTPs 2 IoCs
  • 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.

  • Kills process with taskkill 1 IoCs
  • Modifies registry class 1 IoCs
  • 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 35 IoCs
  • Suspicious use of AdjustPrivilegeToken 29 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 29 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\Solara.exe
    "C:\Users\Admin\AppData\Local\Temp\Solara.exe"
    1⤵
    • Modifies Windows Defender Real-time Protection settings
    • 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:4032
    • 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\Solara.exe'
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:4964
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'Solara.exe'
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:3336
    • 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:1492
    • 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:1228
    • 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⤵
      • Scheduled Task/Job: Scheduled Task
      PID:5100
    • C:\Windows\SYSTEM32\cmd.exe
      cmd.exe /c start calc
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2776
      • C:\Windows\system32\calc.exe
        calc
        3⤵
        • Modifies registry class
        PID:2164
    • C:\Windows\System32\taskkill.exe
      "C:\Windows\System32\taskkill.exe" /im ngrok.exe /f
      2⤵
      • Kills process with taskkill
      • Suspicious use of AdjustPrivilegeToken
      PID:1688
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      "powershell" Get-MpPreference -verbose
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:4656
    • C:\Users\Admin\AppData\Local\Temp\ngrok.exe
      C:\Users\Admin\AppData\Local\Temp\ngrok.exe config add-authtoken WDDisable
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      PID:3184
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      "powershell" Get-MpPreference -verbose
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:828
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      "powershell" Get-MpPreference -verbose
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:840
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      "powershell" Get-MpPreference -verbose
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2296
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      "powershell" Get-MpPreference -verbose
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:4172
  • C:\Users\Admin\AppData\Roaming\svchost.exe
    C:\Users\Admin\AppData\Roaming\svchost.exe
    1⤵
    • Executes dropped EXE
    • Suspicious use of AdjustPrivilegeToken
    PID:3796
  • C:\Users\Admin\AppData\Roaming\svchost.exe
    C:\Users\Admin\AppData\Roaming\svchost.exe
    1⤵
    • Executes dropped EXE
    • Suspicious use of AdjustPrivilegeToken
    PID:2776
  • C:\Users\Admin\AppData\Roaming\svchost.exe
    C:\Users\Admin\AppData\Roaming\svchost.exe
    1⤵
    • Executes dropped EXE
    • Suspicious use of AdjustPrivilegeToken
    PID:2348
  • C:\Users\Admin\AppData\Roaming\svchost.exe
    C:\Users\Admin\AppData\Roaming\svchost.exe
    1⤵
    • Executes dropped EXE
    • Suspicious use of AdjustPrivilegeToken
    PID:1172
  • C:\Users\Admin\AppData\Roaming\svchost.exe
    C:\Users\Admin\AppData\Roaming\svchost.exe
    1⤵
    • Executes dropped EXE
    • Suspicious use of AdjustPrivilegeToken
    PID:2944
  • C:\Users\Admin\AppData\Roaming\svchost.exe
    C:\Users\Admin\AppData\Roaming\svchost.exe
    1⤵
    • Executes dropped EXE
    • Suspicious use of AdjustPrivilegeToken
    PID:4244
  • C:\Windows\system32\OpenWith.exe
    C:\Windows\system32\OpenWith.exe -Embedding
    1⤵
    • Suspicious use of SetWindowsHookEx
    PID:1388
  • C:\Users\Admin\AppData\Roaming\svchost.exe
    C:\Users\Admin\AppData\Roaming\svchost.exe
    1⤵
    • Executes dropped EXE
    • Suspicious use of AdjustPrivilegeToken
    PID:3920
  • C:\Users\Admin\AppData\Roaming\svchost.exe
    C:\Users\Admin\AppData\Roaming\svchost.exe
    1⤵
    • Executes dropped EXE
    • Suspicious use of AdjustPrivilegeToken
    PID:4412
  • C:\Users\Admin\AppData\Roaming\svchost.exe
    C:\Users\Admin\AppData\Roaming\svchost.exe
    1⤵
    • Executes dropped EXE
    • Suspicious use of AdjustPrivilegeToken
    PID:4808
  • C:\Users\Admin\AppData\Roaming\svchost.exe
    C:\Users\Admin\AppData\Roaming\svchost.exe
    1⤵
    • Executes dropped EXE
    • Suspicious use of AdjustPrivilegeToken
    PID:464
  • C:\Users\Admin\AppData\Roaming\svchost.exe
    C:\Users\Admin\AppData\Roaming\svchost.exe
    1⤵
    • Executes dropped EXE
    • Suspicious use of AdjustPrivilegeToken
    PID:2044
  • C:\Users\Admin\AppData\Roaming\svchost.exe
    C:\Users\Admin\AppData\Roaming\svchost.exe
    1⤵
    • Executes dropped EXE
    • Suspicious use of AdjustPrivilegeToken
    PID:2480
  • C:\Users\Admin\AppData\Roaming\svchost.exe
    C:\Users\Admin\AppData\Roaming\svchost.exe
    1⤵
    • Executes dropped EXE
    • Suspicious use of AdjustPrivilegeToken
    PID:4084
  • C:\Users\Admin\AppData\Roaming\svchost.exe
    C:\Users\Admin\AppData\Roaming\svchost.exe
    1⤵
    • Executes dropped EXE
    • Suspicious use of AdjustPrivilegeToken
    PID:1624
  • C:\Users\Admin\AppData\Roaming\svchost.exe
    C:\Users\Admin\AppData\Roaming\svchost.exe
    1⤵
    • Executes dropped EXE
    • Suspicious use of AdjustPrivilegeToken
    PID:2532
  • C:\Users\Admin\AppData\Roaming\svchost.exe
    C:\Users\Admin\AppData\Roaming\svchost.exe
    1⤵
    • Executes dropped EXE
    • Suspicious use of AdjustPrivilegeToken
    PID:3376
  • C:\Users\Admin\AppData\Roaming\svchost.exe
    C:\Users\Admin\AppData\Roaming\svchost.exe
    1⤵
    • Executes dropped EXE
    • Suspicious use of AdjustPrivilegeToken
    PID:4900

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

    60945d1a2e48da37d4ce8d9c56b6845a

    SHA1

    83e80a6acbeb44b68b0da00b139471f428a9d6c1

    SHA256

    314b91c00997034d6e015f40230d90ebbf57de5dc938b62c1a214d591793dbe3

    SHA512

    5d068f1d6443e26ae3cad1c80f969e50e5860967b314153c4d3b6efd1cfa39f0907c6427bec7fa43db079f258b6357e4e9a1b0b1a36b1481d2049ea0e67909ed

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

    Filesize

    944B

    MD5

    bbc2b43d5e574fe7d193c6fc0eb7302c

    SHA1

    f22683b94ad593fd0513fef37df1fb5d0880cc22

    SHA256

    0efa2469ae0b02af024fd0e2828ccab085eaefef3736b3bda0ba631e3a45aa48

    SHA512

    287449b168297a5176b26777f2f5ca3284d967b93274db8b3029d130049073560a10e418607f670d08194193aa91fc9cd174717e7c1d051b09c23857fe3ab9d2

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

    Filesize

    944B

    MD5

    e25058a5d8ac6b42d8c7c9883c598303

    SHA1

    bd9e6194a36a959772fc020f905244900ffc3d57

    SHA256

    9f6fe2203df58ba90b512b436fd74f5eeb4f39f4f9f54a41e882fc54e5f35d51

    SHA512

    0146f2d1298acf189005217784e952d6e99bf7c8bf24ae9e9af1a2ca3d881dca39f19f3ecd06c7d0ad919bc929edaf6e97e0ab2d7f71733b9422527c594ea0c5

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

    Filesize

    944B

    MD5

    dbb22d95851b93abf2afe8fb96a8e544

    SHA1

    920ec5fdb323537bcf78f7e29a4fc274e657f7a4

    SHA256

    e1ee9af6b9e3bfd41b7d2c980580bb7427883f1169ed3df4be11293ce7895465

    SHA512

    16031134458bf312509044a3028be46034c544163c4ca956aee74d2075fbeb5873754d2254dc1d0b573ce1a644336ac4c8bd7147aba100bfdac8c504900ef3fc

  • 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

    54522d22658e4f8f87ecb947b71b8feb

    SHA1

    6a6144bdf9c445099f52211b6122a2ecf72b77e9

    SHA256

    af18fc4864bc2982879aed928c960b6266f372c928f8c9632c5a4eecd64e448a

    SHA512

    55f2c5a455be20dcb4cb93a29e5389e0422237bdd7ac40112fec6f16a36e5e19df50d25d39a6d5acb2d41a96514c7ecd8631ce8e67c4ff04997282f49d947aba

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

    Filesize

    944B

    MD5

    e5663972c1caaba7088048911c758bf3

    SHA1

    3462dea0f9c2c16a9c3afdaef8bbb1f753c1c198

    SHA256

    9f7f29a4696876cadca3f14d7e43f9ede0c97fd64be3f5d94bda49a91b6a419e

    SHA512

    ff4e72c46cf083de62baa2ce2661555dd91b5f144294015f7b262fd4500cb67fe80e1871a82da63b607e3e9cef401f4b73c587bf1134637881ecad51aad1eddc

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

    Filesize

    944B

    MD5

    fd98baf5a9c30d41317663898985593b

    SHA1

    ea300b99f723d2429d75a6c40e0838bf60f17aad

    SHA256

    9d97a5bbc88fdcceac25f293383f7e5ce242675460ffbfb2ee9090870c034e96

    SHA512

    bf4dbbd671b5d7afb326622a7c781f150860294d3dba7160330046c258c84a15981c70e50d84dc7faaa7cc8b8c90bf8df818b3f2d3806a8a3671dfe5e38fe7b0

  • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_rn2ektrr.h32.ps1

    Filesize

    60B

    MD5

    d17fe0a3f47be24a6453e9ef58c94641

    SHA1

    6ab83620379fc69f80c0242105ddffd7d98d5d9d

    SHA256

    96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

    SHA512

    5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

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

    Filesize

    16.4MB

    MD5

    ee2397b5f70e81dd97a4076ba1cb1d3a

    SHA1

    8350f648ebd269b4bca720b4143dd3edcdfafa8f

    SHA256

    b5b1454e2e3a66edf3bde92b29a4f4b324fa3c3d88dc28e378c22cb42237cc67

    SHA512

    57fc76393881c504ac4c37a8ea812a7e21f2bed4ffa4de42a2e6e4558a78bba679ec0f8fcdc39798306c3a97e424fb875680b7f78ac07be3f7f58df093575562

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

    Filesize

    84KB

    MD5

    5f28174c6acb87d760005999e20c0d69

    SHA1

    64a29e3fdfe41844cffc05082453b2d7fabf3b3f

    SHA256

    24402c0bf86465d22e781b4e3b17b1b24b381e07e1f23d41919c73386939a130

    SHA512

    f531cc1e1d33b9cf38c1f5087c4e1719186d6203855c96b57c01b7336ed84466cfaeb300ff0c4f36d15de5c8377dcafe2ffc675f96515ec0e89c34b01675027e

  • memory/4032-58-0x000000001D9E0000-0x000000001D9EC000-memory.dmp

    Filesize

    48KB

  • memory/4032-138-0x000000001E300000-0x000000001E30A000-memory.dmp

    Filesize

    40KB

  • memory/4032-57-0x00007FF809B80000-0x00007FF80A641000-memory.dmp

    Filesize

    10.8MB

  • memory/4032-56-0x00007FF809B80000-0x00007FF80A641000-memory.dmp

    Filesize

    10.8MB

  • memory/4032-66-0x000000001B9F0000-0x000000001B9FC000-memory.dmp

    Filesize

    48KB

  • memory/4032-71-0x0000000020A60000-0x0000000020C1A000-memory.dmp

    Filesize

    1.7MB

  • memory/4032-74-0x0000000020C20000-0x000000002132C000-memory.dmp

    Filesize

    7.0MB

  • memory/4032-76-0x000000001E210000-0x000000001E21E000-memory.dmp

    Filesize

    56KB

  • memory/4032-1-0x0000000000AC0000-0x0000000000ADC000-memory.dmp

    Filesize

    112KB

  • memory/4032-0-0x00007FF809B83000-0x00007FF809B85000-memory.dmp

    Filesize

    8KB

  • memory/4032-96-0x000000001E2B0000-0x000000001E2B8000-memory.dmp

    Filesize

    32KB

  • memory/4032-107-0x000000001E2D0000-0x000000001E2DA000-memory.dmp

    Filesize

    40KB

  • memory/4964-13-0x00007FF809B80000-0x00007FF80A641000-memory.dmp

    Filesize

    10.8MB

  • memory/4964-14-0x00007FF809B80000-0x00007FF80A641000-memory.dmp

    Filesize

    10.8MB

  • memory/4964-12-0x00007FF809B80000-0x00007FF80A641000-memory.dmp

    Filesize

    10.8MB

  • memory/4964-3-0x0000024254580000-0x00000242545A2000-memory.dmp

    Filesize

    136KB

  • memory/4964-17-0x00007FF809B80000-0x00007FF80A641000-memory.dmp

    Filesize

    10.8MB