Analysis

  • max time kernel
    151s
  • max time network
    158s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    03/06/2024, 16:15

General

  • Target
    2024-06-03_f8308f715d4be172d3e2d2c4a9b1a276_bkransomware.exe
  • Size 1.8MB
  • Sample240603-tqaqjadb97
  • SHA256 245fe0592a17163fd7d07e20a99f62cf8cd923b196c307b17f73b958686a4244
  • MD5 SHA1 SHA512 SSDEEP
Score
7/10

Malware Config

Signatures

  • Executes dropped EXE 22 IoCs
  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Drops file in System32 directory 24 IoCs
  • Drops file in Program Files directory 64 IoCs
  • Drops file in Windows directory 2 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Checks SCSI registry key(s) 3 TTPs 64 IoCs

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

  • Checks processor information in registry 2 TTPs 2 IoCs

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

  • Modifies data under HKEY_USERS 64 IoCs
  • Suspicious behavior: EnumeratesProcesses 35 IoCs
  • Suspicious behavior: LoadsDriver 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 42 IoCs
  • Suspicious use of SetWindowsHookEx 3 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs
  • Uses Volume Shadow Copy service COM API

    The Volume Shadow Copy service is used to manage backups/snapshots.

Processes

  • C:\Users\Admin\AppData\Local\Temp\2024-06-03_f8308f715d4be172d3e2d2c4a9b1a276_bkransomware.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-06-03_f8308f715d4be172d3e2d2c4a9b1a276_bkransomware.exe"
    1⤵
    • Drops file in System32 directory
    • Drops file in Program Files directory
    • Drops file in Windows directory
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of SetWindowsHookEx
    PID:2320
  • C:\Windows\System32\alg.exe
    C:\Windows\System32\alg.exe
    1⤵
    • Executes dropped EXE
    • Drops file in System32 directory
    PID:2256
  • C:\Windows\system32\DiagSvcs\DiagnosticsHub.StandardCollector.Service.exe
    C:\Windows\system32\DiagSvcs\DiagnosticsHub.StandardCollector.Service.exe
    1⤵
    • Executes dropped EXE
    PID:208
  • C:\Windows\System32\svchost.exe
    C:\Windows\System32\svchost.exe -k NetworkService -p -s TapiSrv
    1⤵
      PID:804
    • C:\Windows\system32\fxssvc.exe
      C:\Windows\system32\fxssvc.exe
      1⤵
      • Executes dropped EXE
      • Modifies data under HKEY_USERS
      • Suspicious use of AdjustPrivilegeToken
      PID:1368
    • C:\Program Files\Google\Chrome\Application\106.0.5249.119\elevation_service.exe
      "C:\Program Files\Google\Chrome\Application\106.0.5249.119\elevation_service.exe"
      1⤵
      • Executes dropped EXE
      PID:4292
    • C:\Program Files (x86)\Microsoft\Edge\Application\122.0.2365.52\elevation_service.exe
      "C:\Program Files (x86)\Microsoft\Edge\Application\122.0.2365.52\elevation_service.exe"
      1⤵
      • Executes dropped EXE
      PID:2304
    • C:\Program Files (x86)\Mozilla Maintenance Service\maintenanceservice.exe
      "C:\Program Files (x86)\Mozilla Maintenance Service\maintenanceservice.exe"
      1⤵
      • Executes dropped EXE
      PID:3016
    • C:\Windows\System32\msdtc.exe
      C:\Windows\System32\msdtc.exe
      1⤵
      • Executes dropped EXE
      • Drops file in System32 directory
      • Drops file in Windows directory
      PID:2212
    • \??\c:\Program Files\Common Files\Microsoft Shared\Source Engine\OSE.EXE
      "c:\Program Files\Common Files\Microsoft Shared\Source Engine\OSE.EXE"
      1⤵
      • Executes dropped EXE
      PID:2280
    • C:\Windows\system32\PerceptionSimulation\PerceptionSimulationService.exe
      C:\Windows\system32\PerceptionSimulation\PerceptionSimulationService.exe
      1⤵
      • Executes dropped EXE
      PID:3436
    • C:\Windows\SysWow64\perfhost.exe
      C:\Windows\SysWow64\perfhost.exe
      1⤵
      • Executes dropped EXE
      PID:3128
    • C:\Windows\system32\locator.exe
      C:\Windows\system32\locator.exe
      1⤵
      • Executes dropped EXE
      PID:384
    • C:\Windows\System32\SensorDataService.exe
      C:\Windows\System32\SensorDataService.exe
      1⤵
      • Executes dropped EXE
      • Checks SCSI registry key(s)
      PID:3108
    • C:\Windows\System32\snmptrap.exe
      C:\Windows\System32\snmptrap.exe
      1⤵
      • Executes dropped EXE
      PID:4568
    • C:\Windows\system32\spectrum.exe
      C:\Windows\system32\spectrum.exe
      1⤵
      • Executes dropped EXE
      • Checks SCSI registry key(s)
      PID:3196
    • C:\Windows\System32\OpenSSH\ssh-agent.exe
      C:\Windows\System32\OpenSSH\ssh-agent.exe
      1⤵
      • Executes dropped EXE
      PID:1948
    • C:\Windows\system32\svchost.exe
      C:\Windows\system32\svchost.exe -k LocalService -p -s SharedRealitySvc
      1⤵
        PID:1732
      • C:\Windows\system32\TieringEngineService.exe
        C:\Windows\system32\TieringEngineService.exe
        1⤵
        • Executes dropped EXE
        • Checks processor information in registry
        • Suspicious use of AdjustPrivilegeToken
        PID:3260
      • C:\Windows\system32\AgentService.exe
        C:\Windows\system32\AgentService.exe
        1⤵
        • Executes dropped EXE
        • Suspicious use of AdjustPrivilegeToken
        PID:4456
      • C:\Windows\System32\vds.exe
        C:\Windows\System32\vds.exe
        1⤵
        • Executes dropped EXE
        PID:4940
      • C:\Windows\system32\vssvc.exe
        C:\Windows\system32\vssvc.exe
        1⤵
        • Executes dropped EXE
        • Suspicious use of AdjustPrivilegeToken
        PID:452
      • C:\Windows\system32\wbengine.exe
        "C:\Windows\system32\wbengine.exe"
        1⤵
        • Executes dropped EXE
        • Suspicious use of AdjustPrivilegeToken
        PID:1480
      • C:\Windows\system32\wbem\WmiApSrv.exe
        C:\Windows\system32\wbem\WmiApSrv.exe
        1⤵
        • Executes dropped EXE
        PID:3884
      • C:\Windows\system32\SearchIndexer.exe
        C:\Windows\system32\SearchIndexer.exe /Embedding
        1⤵
        • Executes dropped EXE
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:5044
        • C:\Windows\system32\SearchProtocolHost.exe
          "C:\Windows\system32\SearchProtocolHost.exe" Global\UsGthrFltPipeMssGthrPipe1_ Global\UsGthrCtrlFltPipeMssGthrPipe1 1 -2147483646 "Software\Microsoft\Windows Search" "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT; MS Search 4.0 Robot)" "C:\ProgramData\Microsoft\Search\Data\Temp\usgthrsvc" "DownLevelDaemon"
          2⤵
          • Modifies data under HKEY_USERS
          PID:4192
        • C:\Windows\system32\SearchFilterHost.exe
          "C:\Windows\system32\SearchFilterHost.exe" 0 916 920 928 8192 924 900
          2⤵
          • Modifies data under HKEY_USERS
          PID:4208
      • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
        "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=3700 --field-trial-handle=2236,i,5367110156796017614,12594004256180761011,262144 --variations-seed-version /prefetch:8
        1⤵
          PID:4792

        Network

              MITRE ATT&CK Enterprise v15

              Replay Monitor

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              Downloads

              elevation_service.exe

              • Path C:\Program Files (x86)\Microsoft\Edge\Application\122.0.2365.52\elevation_service.exe
              • Size 2.2MB
              • SHA256 9ac2fb1bc0d825787146be30c5f6bfdfbef14c5448f544f2200de86d88e4c04c
              • MD5 SHA1 SHA512 SSDEEP

              maintenanceservice.exe

              • Path C:\Program Files (x86)\Mozilla Maintenance Service\maintenanceservice.exe
              • Size 1.6MB
              • SHA256 b562f113532909077e6744fb75cb064b31dfc35109a2c29de00682294234f61c
              • MD5 SHA1 SHA512 SSDEEP

              OSE.EXE

              • Path C:\Program Files\Common Files\microsoft shared\Source Engine\OSE.EXE
              • Size 1.6MB
              • SHA256 6554e72fae3038f1aa150209422746a69f49f9c609792bd191a7e09a97705a92
              • MD5 SHA1 SHA512 SSDEEP

              elevation_service.exe

              • Path C:\Program Files\Google\Chrome\Application\106.0.5249.119\elevation_service.exe
              • Size 2.1MB
              • SHA256 99b6dcd1a25f9d7364a9a068334c3d8f10c1600abb9ff02c930dafe13164ceba
              • MD5 SHA1 SHA512 SSDEEP

              perfhost.exe

              • Path C:\Windows\SysWOW64\perfhost.exe
              • Size 1.4MB
              • SHA256 d4b90c36af10a884aca5c68081f8f10e73fad1b6e151c571b0ebeb0db7022385
              • MD5 SHA1 SHA512 SSDEEP

              AgentService.exe

              • Path C:\Windows\System32\AgentService.exe
              • Size 1.7MB
              • SHA256 758966287fa128eabecda1e906670425c86b629ee078c147f49e71fff5ee1775
              • MD5 SHA1 SHA512 SSDEEP

              DiagnosticsHub.StandardCollector.Service.exe

              • Path C:\Windows\System32\DiagSvcs\DiagnosticsHub.StandardCollector.Service.exe
              • Size 1.5MB
              • SHA256 ae5f45bd8150d705c2a57a1778b0f251e39e78d005fe89a8f5a84df7a09b72f6
              • MD5 SHA1 SHA512 SSDEEP

              FXSSVC.exe

              • Path C:\Windows\System32\FXSSVC.exe
              • Size 1.2MB
              • SHA256 747f1658e2fd322989be0ff29682777f70334b09c6dc028700c4791a2a82d130
              • MD5 SHA1 SHA512 SSDEEP

              Locator.exe

              • Path C:\Windows\System32\Locator.exe
              • Size 1.4MB
              • SHA256 762c47fe3043e5b5367b9b01b40817f2a8ca728015f290c21eb88fa1d3e068e4
              • MD5 SHA1 SHA512 SSDEEP

              ssh-agent.exe

              • Path C:\Windows\System32\OpenSSH\ssh-agent.exe
              • Size 1.7MB
              • SHA256 cca8eb0a61a3c55badd9a2cbdb978fc56569c8f5034c13f44e4986e14f25ce56
              • MD5 SHA1 SHA512 SSDEEP

              PerceptionSimulationService.exe

              • Path C:\Windows\System32\PerceptionSimulation\PerceptionSimulationService.exe
              • Size 1.5MB
              • SHA256 bed4166570aa2e9d77bde15f8b45355d6c099653379c32a673008356118d6f5e
              • MD5 SHA1 SHA512 SSDEEP

              SearchIndexer.exe

              • Path C:\Windows\System32\SearchIndexer.exe
              • Size 1.4MB
              • SHA256 a80eb1c2782d8f4dd1e64817c0c69dd65f5440c3f7d04bd5074d42f8c645c426
              • MD5 SHA1 SHA512 SSDEEP

              SensorDataService.exe

              • Path C:\Windows\System32\SensorDataService.exe
              • Size 1.8MB
              • SHA256 8790dc612520574298dd090fd4910a597733ff0d029917e2c67199f682f73803
              • MD5 SHA1 SHA512 SSDEEP

              Spectrum.exe

              • Path C:\Windows\System32\Spectrum.exe
              • Size 1.4MB
              • SHA256 ef543604c1e5f9f6f84a8f46c2d07085d428a16c2e54f063c824c9c4f3bf12c9
              • MD5 SHA1 SHA512 SSDEEP

              TieringEngineService.exe

              • Path C:\Windows\System32\TieringEngineService.exe
              • Size 1.7MB
              • SHA256 bcaf51bee522748c115037d89a119dbfa9ef83c9661192f2949852248d1c48ae
              • MD5 SHA1 SHA512 SSDEEP

              VSSVC.exe

              • Path C:\Windows\System32\VSSVC.exe
              • Size 2.0MB
              • SHA256 9973c4623d6932135dde0d24cac366dae05eaa2035fafd78af6e84f4ea8b7c81
              • MD5 SHA1 SHA512 SSDEEP

              alg.exe

              • Path C:\Windows\System32\alg.exe
              • Size 1.5MB
              • SHA256 24f35e07288c7e5ce7cb087392afbfc0f232e91cee588e4b6a369fcb19d76757
              • MD5 SHA1 SHA512 SSDEEP

              msdtc.exe

              • Path C:\Windows\System32\msdtc.exe
              • Size 1.5MB
              • SHA256 9077826a6df9a7e88983203c4930ef138e1ceb37c4c63eb1ef4fa27b92a2f6c5
              • MD5 SHA1 SHA512 SSDEEP

              snmptrap.exe

              • Path C:\Windows\System32\snmptrap.exe
              • Size 1.4MB
              • SHA256 0aaa876183dfe72e207f4923cf81688c0fd1222b42683399f2f28982824f8c4f
              • MD5 SHA1 SHA512 SSDEEP

              vds.exe

              • Path C:\Windows\System32\vds.exe
              • Size 1.3MB
              • SHA256 25941f74af164db298c8222649fc2946179e5d6d1c8f880f29c2473588cf816f
              • MD5 SHA1 SHA512 SSDEEP

              WmiApSrv.exe

              • Path C:\Windows\System32\wbem\WmiApSrv.exe
              • Size 1.6MB
              • SHA256 38020e158247063841da7c14007f5ba8f5a788d08c9b04763fc77922923c46c6
              • MD5 SHA1 SHA512 SSDEEP

              wbengine.exe

              • Path C:\Windows\System32\wbengine.exe
              • Size 2.1MB
              • SHA256 99fd7d49c74d04c4d50e4f7cd370c871f16a02c24d44fa59724038f6c1f32594
              • MD5 SHA1 SHA512 SSDEEP

              memory/208-33-0x0000000140000000-0x0000000140246000-memory.dmp

              memory/208-34-0x0000000000690000-0x00000000006F0000-memory.dmp

              memory/208-25-0x0000000000690000-0x00000000006F0000-memory.dmp

              memory/208-110-0x0000000140000000-0x0000000140246000-memory.dmp

              memory/384-139-0x0000000140000000-0x0000000140232000-memory.dmp

              memory/384-255-0x0000000140000000-0x0000000140232000-memory.dmp

              memory/452-406-0x0000000140000000-0x00000001401FC000-memory.dmp

              memory/452-229-0x0000000140000000-0x00000001401FC000-memory.dmp

              memory/1368-45-0x0000000000930000-0x0000000000990000-memory.dmp

              memory/1368-38-0x0000000140000000-0x0000000140135000-memory.dmp

              memory/1368-39-0x0000000000930000-0x0000000000990000-memory.dmp

              memory/1368-47-0x0000000000930000-0x0000000000990000-memory.dmp

              memory/1368-50-0x0000000140000000-0x0000000140135000-memory.dmp

              memory/1480-241-0x0000000140000000-0x0000000140216000-memory.dmp

              memory/1480-425-0x0000000140000000-0x0000000140216000-memory.dmp

              memory/1948-179-0x0000000140000000-0x000000014029F000-memory.dmp

              memory/1948-352-0x0000000140000000-0x000000014029F000-memory.dmp

              memory/2212-91-0x0000000000D60000-0x0000000000DC0000-memory.dmp

              memory/2212-190-0x0000000140000000-0x0000000140256000-memory.dmp

              memory/2212-90-0x0000000140000000-0x0000000140256000-memory.dmp

              memory/2256-12-0x00000000007A0000-0x0000000000800000-memory.dmp

              memory/2256-18-0x00000000007A0000-0x0000000000800000-memory.dmp

              memory/2256-89-0x0000000140000000-0x0000000140247000-memory.dmp

              memory/2256-20-0x0000000140000000-0x0000000140247000-memory.dmp

              memory/2280-111-0x0000000140000000-0x000000014026C000-memory.dmp

              memory/2280-216-0x0000000140000000-0x000000014026C000-memory.dmp

              memory/2304-63-0x0000000000990000-0x00000000009F0000-memory.dmp

              memory/2304-70-0x0000000000990000-0x00000000009F0000-memory.dmp

              memory/2304-67-0x0000000140000000-0x0000000140245000-memory.dmp

              memory/2304-166-0x0000000140000000-0x0000000140245000-memory.dmp

              memory/2320-6-0x0000000000C60000-0x0000000000CC7000-memory.dmp

              memory/2320-37-0x0000000000400000-0x00000000006A3000-memory.dmp

              memory/2320-0-0x0000000000400000-0x00000000006A3000-memory.dmp

              memory/2320-7-0x0000000000C60000-0x0000000000CC7000-memory.dmp

              memory/2320-1-0x0000000000C60000-0x0000000000CC7000-memory.dmp

              memory/3016-82-0x0000000140000000-0x0000000140267000-memory.dmp

              memory/3016-84-0x0000000000CE0000-0x0000000000D40000-memory.dmp

              memory/3016-80-0x0000000000CE0000-0x0000000000D40000-memory.dmp

              memory/3016-74-0x0000000000CE0000-0x0000000000D40000-memory.dmp

              memory/3016-86-0x0000000140000000-0x0000000140267000-memory.dmp

              memory/3108-253-0x0000000140000000-0x00000001401D7000-memory.dmp

              memory/3108-142-0x0000000140000000-0x00000001401D7000-memory.dmp

              memory/3128-128-0x0000000000400000-0x0000000000634000-memory.dmp

              memory/3128-240-0x0000000000400000-0x0000000000634000-memory.dmp

              memory/3196-330-0x0000000140000000-0x0000000140169000-memory.dmp

              memory/3196-167-0x0000000140000000-0x0000000140169000-memory.dmp

              memory/3260-366-0x0000000140000000-0x000000014027F000-memory.dmp

              memory/3260-199-0x0000000140000000-0x000000014027F000-memory.dmp

              memory/3436-117-0x0000000140000000-0x0000000140248000-memory.dmp

              memory/3436-228-0x0000000140000000-0x0000000140248000-memory.dmp

              memory/3884-438-0x0000000140000000-0x0000000140263000-memory.dmp

              memory/3884-256-0x0000000140000000-0x0000000140263000-memory.dmp

              memory/4292-60-0x0000000140000000-0x0000000140237000-memory.dmp

              memory/4292-154-0x0000000140000000-0x0000000140237000-memory.dmp

              memory/4292-58-0x0000000000510000-0x0000000000570000-memory.dmp

              memory/4292-52-0x0000000000510000-0x0000000000570000-memory.dmp

              memory/4456-214-0x0000000140000000-0x00000001401C0000-memory.dmp

              memory/4456-202-0x0000000140000000-0x00000001401C0000-memory.dmp

              memory/4568-316-0x0000000140000000-0x0000000140233000-memory.dmp

              memory/4568-155-0x0000000140000000-0x0000000140233000-memory.dmp

              memory/4940-396-0x0000000140000000-0x0000000140147000-memory.dmp

              memory/4940-217-0x0000000140000000-0x0000000140147000-memory.dmp

              memory/5044-268-0x0000000140000000-0x0000000140179000-memory.dmp

              memory/5044-449-0x0000000140000000-0x0000000140179000-memory.dmp