Analysis

  • max time kernel
    148s
  • max time network
    148s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20250217-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20250217-enlocale:en-usos:windows10-2004-x64system
  • submitted
    02/03/2025, 01:41

General

  • Target

    BootstrapperNew.exe

  • Size

    3.2MB

  • MD5

    7e5b05edd4fc5123a6156664e4c37163

  • SHA1

    c686009d9f8a4d4c66236c77bbc3d7a0380e4bb7

  • SHA256

    eed32abbafc11dcb93a5657cc4a5c651d620b4be6fb935e322de765d3d005b16

  • SHA512

    5bab95aa627fe696f05d0d6ebd77e43050b9071e1d753c08e52fe85338018163e773ff8d638c07d789030315ba75ec5379ce55858a4ede72e2db08049b3d9311

  • SSDEEP

    98304:zOq7GTRgy8ao7iHl5CjjTwL1cLoGkqI2ouIAS:ibRSVECVkX8

Malware Config

Extracted

Family

xworm

C2

127.0.0.1:34930

minimum-ball.gl.at.ply.gg:34930

Attributes
  • Install_directory

    %AppData%

  • install_file

    SolaraX.exe

Signatures

  • Detect Umbral payload 2 IoCs
  • Detect Xworm Payload 2 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

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

  • 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 5 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).

  • Detects videocard installed 1 TTPs 1 IoCs

    Uses WMIC.exe to determine videocard installed.

  • 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 19 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 34 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\BootstrapperNew.exe
    "C:\Users\Admin\AppData\Local\Temp\BootstrapperNew.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:788
    • C:\Users\Admin\AppData\Local\Temp\Solara.exe
      "C:\Users\Admin\AppData\Local\Temp\Solara.exe"
      2⤵
      • Drops file in Drivers directory
      • Executes dropped EXE
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:1512
      • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
        "powershell.exe" Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Local\Temp\Solara.exe'
        3⤵
        • Command and Scripting Interpreter: PowerShell
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:688
      • 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
        • Suspicious use of AdjustPrivilegeToken
        PID:1600
      • 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
        • Suspicious use of AdjustPrivilegeToken
        PID:3676
      • 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
        • Suspicious use of AdjustPrivilegeToken
        PID:3088
      • C:\Windows\System32\Wbem\wmic.exe
        "wmic.exe" os get Caption
        3⤵
        • Suspicious use of AdjustPrivilegeToken
        PID:1976
      • C:\Windows\System32\Wbem\wmic.exe
        "wmic.exe" computersystem get totalphysicalmemory
        3⤵
        • Suspicious use of AdjustPrivilegeToken
        PID:3884
      • C:\Windows\System32\Wbem\wmic.exe
        "wmic.exe" csproduct get uuid
        3⤵
          PID:1716
        • 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:5088
        • C:\Windows\System32\Wbem\wmic.exe
          "wmic" path win32_VideoController get name
          3⤵
          • Detects videocard installed
          PID:3584
      • C:\Users\Admin\AppData\Local\Temp\SolaraNew.exe
        "C:\Users\Admin\AppData\Local\Temp\SolaraNew.exe"
        2⤵
        • Executes dropped EXE
        PID:812
      • C:\Users\Admin\AppData\Local\Temp\SolaraX.exe
        "C:\Users\Admin\AppData\Local\Temp\SolaraX.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:764
        • 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\SolaraX.exe'
          3⤵
          • Command and Scripting Interpreter: PowerShell
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:4240
        • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
          "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'SolaraX.exe'
          3⤵
          • Command and Scripting Interpreter: PowerShell
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:1744
        • 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\SolaraX.exe'
          3⤵
          • Command and Scripting Interpreter: PowerShell
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:1100
        • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
          "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'SolaraX.exe'
          3⤵
          • Command and Scripting Interpreter: PowerShell
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:3968
        • C:\Windows\System32\schtasks.exe
          "C:\Windows\System32\schtasks.exe" /create /f /RL HIGHEST /sc minute /mo 1 /tn "SolaraX" /tr "C:\Users\Admin\AppData\Roaming\SolaraX.exe"
          3⤵
          • Scheduled Task/Job: Scheduled Task
          PID:2644
    • C:\Users\Admin\AppData\Roaming\SolaraX.exe
      C:\Users\Admin\AppData\Roaming\SolaraX.exe
      1⤵
      • Executes dropped EXE
      PID:3344
    • C:\Users\Admin\AppData\Roaming\SolaraX.exe
      C:\Users\Admin\AppData\Roaming\SolaraX.exe
      1⤵
      • Executes dropped EXE
      PID:3416

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

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    Downloads

    • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\SolaraX.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

      948B

      MD5

      17d8127be94d3c1b6fcc9a4ed585003e

      SHA1

      789874fcc7c778c723f3e89822d8cc8750c6c4c8

      SHA256

      ea357ad1f95863b3618d31e5b0f90495331f64de2b784d9e185b48668c937a7b

      SHA512

      bb18b6d07d82227f5cfbe3eb460df79ec892c560ad2964dcd4782aa26336ae15059843bf46a739bdd4a4daa58057f99102531a756a1cf434ce6449b3cd35a98e

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

      Filesize

      1KB

      MD5

      244d9cf0a4651b42e7e6ff0dbd754c01

      SHA1

      2c474ea8e49a68452fa2832a61a5feb2a9b96d06

      SHA256

      1d6bf92d3d3bd0a91b979c181e264716b3558cf4336a1737820523fd70254f12

      SHA512

      a819c5ac7569b29f345c26f3b665b66826bbd8a7c22cf25e0fd0a6f556a332a9f90ee3347d77cfc8109a28af70b8fbdce3a719e8ff7bc8006b7d78b2c31fb939

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

      Filesize

      944B

      MD5

      dcb1d875e651037e09d7457b4da582d7

      SHA1

      1bdf4a3355a41aca624b2ab63301c4f1485a3ff4

      SHA256

      03a42b0929feb2092246507451be4d2d81ae9d80be3c42464fb4afc1aef2eeb5

      SHA512

      e2788161375e6a0f9a23124eaefce8771c6c1a229937896e0bff4e13cb66112eee658ea04a7669e0db57839a36b5d17ba0a3213763ad7a48fdd4797bf7dc2c5f

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

      Filesize

      944B

      MD5

      98baf5117c4fcec1692067d200c58ab3

      SHA1

      5b33a57b72141e7508b615e17fb621612cb8e390

      SHA256

      30bf8496e9a08f4fdfe4767abcd565f92b6da06ca1c7823a70cb7cab16262e51

      SHA512

      344a70bfc037d54176f12db91f05bf4295bb587a5062fd1febe6f52853571170bd8ef6042cb87b893185bbae1937cf77b679d7970f8cc1c2666b0b7c1b32987d

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

      Filesize

      944B

      MD5

      34f595487e6bfd1d11c7de88ee50356a

      SHA1

      4caad088c15766cc0fa1f42009260e9a02f953bb

      SHA256

      0f9a4b52e01cb051052228a55d0515911b7ef5a8db3cf925528c746df511424d

      SHA512

      10976c5deaf9fac449e703e852c3b08d099f430de2d7c7b8e2525c35d63e28b890e5aab63feff9b20bca0aaf9f35a3ba411aee3fbeee9ea59f90ed25bd617a0b

    • 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\Temp\Solara.exe

      Filesize

      227KB

      MD5

      bbd1b92a0e94bf1f227d32711bb436ea

      SHA1

      2e8e3dc48fd65826044b1136ae1ea977c40dc3bd

      SHA256

      b45452e51c142d03827435699e9f60027b71d38dda754dd503ee4a12f8b9ffc6

      SHA512

      fd076757149a1fad1fb762d2ddf6e454012a45a16f8ce24219d872839e5bd7bb9898f8b4b3a4ebd90b59fe9c39c4728def5aa3de02c839ecbb0b2da005e2899b

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

      Filesize

      2.9MB

      MD5

      f227cdfd423b3cc03bb69c49babf4da3

      SHA1

      3db5a97d9b0f2545e7ba97026af6c28512200441

      SHA256

      cb5d6c1ca0aa6232a2d55e14b20ac4a9945a0bd063c57d60a5ed3ae94160e3e8

      SHA512

      b10afd03b02a928545c16fad39a6ae46b68b1e1a2477a6990803ce80008e7161fb2ebc9380ba15a1b074bb436aa34bcd6c94a922933d438b1c22489717e1e10e

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

      Filesize

      74KB

      MD5

      aef41983064b12d1e648100e8141bf19

      SHA1

      b258d4a810e818e9c9dcaba62f75f34036b60fcd

      SHA256

      834bcea2665dc99b4c16fe87095f3e2b44e2e013ec1017407a061a1203c2f3cf

      SHA512

      2e4e3fdf7cd1892b73cf1989dfd82d91c677653a4501f44bb2d74b153b72982e069998b5bef097a7645970838c13ac86ec546173f6baf3afb7cbc26e6c9d5524

    • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_ujwf4d1m.11o.ps1

      Filesize

      60B

      MD5

      d17fe0a3f47be24a6453e9ef58c94641

      SHA1

      6ab83620379fc69f80c0242105ddffd7d98d5d9d

      SHA256

      96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

      SHA512

      5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

    • memory/688-48-0x0000019E78F30000-0x0000019E78F52000-memory.dmp

      Filesize

      136KB

    • memory/764-38-0x0000000000EF0000-0x0000000000F08000-memory.dmp

      Filesize

      96KB

    • memory/788-0-0x00007FFD4C063000-0x00007FFD4C065000-memory.dmp

      Filesize

      8KB

    • memory/788-1-0x00000000000E0000-0x0000000000412000-memory.dmp

      Filesize

      3.2MB

    • memory/812-41-0x0000029548EA0000-0x0000029548EB0000-memory.dmp

      Filesize

      64KB

    • memory/812-62-0x00000295635E0000-0x00000295635E8000-memory.dmp

      Filesize

      32KB

    • memory/812-57-0x0000029563570000-0x0000029563596000-memory.dmp

      Filesize

      152KB

    • memory/812-58-0x00000295635A0000-0x00000295635A8000-memory.dmp

      Filesize

      32KB

    • memory/812-59-0x00000295635B0000-0x00000295635C6000-memory.dmp

      Filesize

      88KB

    • memory/812-60-0x0000029563320000-0x000002956332A000-memory.dmp

      Filesize

      40KB

    • memory/812-61-0x0000029563310000-0x000002956331A000-memory.dmp

      Filesize

      40KB

    • memory/812-40-0x00007FFD4C060000-0x00007FFD4CB21000-memory.dmp

      Filesize

      10.8MB

    • memory/812-54-0x00000295632F0000-0x00000295632FE000-memory.dmp

      Filesize

      56KB

    • memory/812-55-0x0000029567D90000-0x0000029567E90000-memory.dmp

      Filesize

      1024KB

    • memory/812-190-0x00007FFD4C060000-0x00007FFD4CB21000-memory.dmp

      Filesize

      10.8MB

    • memory/812-56-0x0000029563300000-0x000002956330A000-memory.dmp

      Filesize

      40KB

    • memory/812-39-0x00000295487F0000-0x0000029548AD2000-memory.dmp

      Filesize

      2.9MB

    • memory/812-53-0x0000029563530000-0x0000029563568000-memory.dmp

      Filesize

      224KB

    • memory/812-42-0x00000295632A0000-0x00000295632A8000-memory.dmp

      Filesize

      32KB

    • memory/1512-81-0x0000027DFE520000-0x0000027DFE570000-memory.dmp

      Filesize

      320KB

    • memory/1512-142-0x0000027DFFDD0000-0x0000027DFFDE2000-memory.dmp

      Filesize

      72KB

    • memory/1512-141-0x0000027DFE4D0000-0x0000027DFE4DA000-memory.dmp

      Filesize

      40KB

    • memory/1512-82-0x0000027DFE4F0000-0x0000027DFE50E000-memory.dmp

      Filesize

      120KB

    • memory/1512-37-0x00007FFD4C060000-0x00007FFD4CB21000-memory.dmp

      Filesize

      10.8MB

    • memory/1512-184-0x00007FFD4C060000-0x00007FFD4CB21000-memory.dmp

      Filesize

      10.8MB

    • memory/1512-189-0x00007FFD4C060000-0x00007FFD4CB21000-memory.dmp

      Filesize

      10.8MB

    • memory/1512-80-0x0000027DFFD30000-0x0000027DFFDA6000-memory.dmp

      Filesize

      472KB

    • memory/1512-16-0x0000027DFE100000-0x0000027DFE140000-memory.dmp

      Filesize

      256KB