Analysis

  • max time kernel
    149s
  • max time network
    152s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    25/04/2024, 05:50

General

  • Target

    xx-lavacrypt-dfgs.exe

  • Size

    757KB

  • MD5

    0aee27ff78ad1b6de193fb9527f2bad1

  • SHA1

    62510b0be0084347ef5a26191de2b87423c96ff3

  • SHA256

    784701d5138d608aacea3c83d5326af091766d37bc8be5f8aebb8d238f8249fa

  • SHA512

    0020a8808c94ceae9df24b36c1ebfcc8b09b550bee85c01a89a268f6e57eccd4ba3831c5b0a6af3649b10574c2840f8f3032bf206d0fd9ec250944153272b813

  • SSDEEP

    12288:3SwSQFyl4f9xaVpQ46RdqabYHO8sMCgHYzKpqyYN9sqM0+IuLbcyYhGJZNy6pDW8:QQFlKTQ46L8HthCxIqyl6UvNYhcZs67r

Malware Config

Signatures

  • UAC bypass 3 TTPs 1 IoCs
  • Windows security bypass 2 TTPs 2 IoCs
  • Looks for VirtualBox Guest Additions in registry 2 TTPs 2 IoCs
  • Looks for VMWare Tools registry key 2 TTPs 2 IoCs
  • Checks BIOS information in registry 2 TTPs 4 IoCs

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

  • Checks computer location settings 2 TTPs 2 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Executes dropped EXE 1 IoCs
  • Windows security modification 2 TTPs 3 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Checks whether UAC is enabled 1 TTPs 2 IoCs
  • Maps connected drives based on registry 3 TTPs 4 IoCs

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

  • Suspicious use of SetThreadContext 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.

  • Delays execution with timeout.exe 1 IoCs
  • Modifies registry class 35 IoCs
  • Suspicious behavior: EnumeratesProcesses 26 IoCs
  • Suspicious behavior: MapViewOfSection 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs
  • System policy modification 1 TTPs 1 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\xx-lavacrypt-dfgs.exe
    "C:\Users\Admin\AppData\Local\Temp\xx-lavacrypt-dfgs.exe"
    1⤵
    • Looks for VirtualBox Guest Additions in registry
    • Looks for VMWare Tools registry key
    • Checks BIOS information in registry
    • Checks computer location settings
    • Adds Run key to start application
    • Maps connected drives based on registry
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3420
    • C:\Windows\System32\cmd.exe
      "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "svchost" /tr '"C:\Users\Admin\AppData\Roaming\svchost.exe"' & exit
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2908
      • C:\Windows\system32\schtasks.exe
        schtasks /create /f /sc onlogon /rl highest /tn "svchost" /tr '"C:\Users\Admin\AppData\Roaming\svchost.exe"'
        3⤵
        • Creates scheduled task(s)
        PID:1428
    • C:\Windows\system32\cmd.exe
      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmpE03E.tmp.bat""
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:4924
      • C:\Windows\system32\timeout.exe
        timeout 3
        3⤵
        • Delays execution with timeout.exe
        PID:3352
      • C:\Users\Admin\AppData\Roaming\svchost.exe
        "C:\Users\Admin\AppData\Roaming\svchost.exe"
        3⤵
        • UAC bypass
        • Windows security bypass
        • Looks for VirtualBox Guest Additions in registry
        • Looks for VMWare Tools registry key
        • Checks BIOS information in registry
        • Checks computer location settings
        • Executes dropped EXE
        • Windows security modification
        • Checks whether UAC is enabled
        • Maps connected drives based on registry
        • Suspicious use of SetThreadContext
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        • System policy modification
        PID:3968
        • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
          "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\svchost.exe" -Force
          4⤵
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:3032
        • C:\Program Files\Windows Mail\wab.exe
          "C:\Program Files\Windows Mail\wab.exe"
          4⤵
          • Suspicious behavior: MapViewOfSection
          • Suspicious use of WriteProcessMemory
          PID:1852
          • C:\Windows\explorer.exe
            "C:\Windows\explorer.exe"
            5⤵
            • Modifies registry class
            PID:4780
          • C:\Windows\system32\svchost.exe
            "C:\Windows\system32\svchost.exe"
            5⤵
            • Modifies registry class
            PID:4676
          • C:\Windows\system32\cmd.exe
            "C:\Windows\system32\cmd.exe"
            5⤵
            • Modifies registry class
            PID:4708
          • C:\Windows\explorer.exe
            "C:\Windows\explorer.exe"
            5⤵
            • Modifies registry class
            PID:4336
          • C:\Windows\system32\svchost.exe
            "C:\Windows\system32\svchost.exe"
            5⤵
            • Modifies registry class
            PID:3192
          • C:\Windows\system32\cmd.exe
            "C:\Windows\system32\cmd.exe"
            5⤵
            • Modifies registry class
            PID:560
          • C:\Windows\explorer.exe
            "C:\Windows\explorer.exe"
            5⤵
            • Modifies registry class
            PID:440
          • C:\Windows\system32\svchost.exe
            "C:\Windows\system32\svchost.exe"
            5⤵
            • Modifies registry class
            PID:3640
          • C:\Windows\system32\cmd.exe
            "C:\Windows\system32\cmd.exe"
            5⤵
            • Modifies registry class
            PID:4432
          • C:\Windows\explorer.exe
            "C:\Windows\explorer.exe"
            5⤵
            • Modifies registry class
            PID:2164
          • C:\Windows\system32\svchost.exe
            "C:\Windows\system32\svchost.exe"
            5⤵
            • Modifies registry class
            PID:772
          • C:\Windows\system32\cmd.exe
            "C:\Windows\system32\cmd.exe"
            5⤵
            • Modifies registry class
            PID:3184
          • C:\Windows\explorer.exe
            "C:\Windows\explorer.exe"
            5⤵
            • Modifies registry class
            PID:4092
          • C:\Windows\system32\svchost.exe
            "C:\Windows\system32\svchost.exe"
            5⤵
            • Modifies registry class
            PID:4228
          • C:\Windows\system32\cmd.exe
            "C:\Windows\system32\cmd.exe"
            5⤵
            • Modifies registry class
            PID:3236
          • C:\Windows\explorer.exe
            "C:\Windows\explorer.exe"
            5⤵
            • Modifies registry class
            PID:380
          • C:\Windows\system32\svchost.exe
            "C:\Windows\system32\svchost.exe"
            5⤵
            • Modifies registry class
            PID:1576
          • C:\Windows\system32\cmd.exe
            "C:\Windows\system32\cmd.exe"
            5⤵
            • Modifies registry class
            PID:4620
          • C:\Windows\explorer.exe
            "C:\Windows\explorer.exe"
            5⤵
            • Modifies registry class
            PID:5056
          • C:\Windows\system32\svchost.exe
            "C:\Windows\system32\svchost.exe"
            5⤵
            • Modifies registry class
            PID:3804
          • C:\Windows\system32\cmd.exe
            "C:\Windows\system32\cmd.exe"
            5⤵
            • Modifies registry class
            PID:3584
          • C:\Windows\explorer.exe
            "C:\Windows\explorer.exe"
            5⤵
            • Modifies registry class
            PID:1044
          • C:\Windows\system32\svchost.exe
            "C:\Windows\system32\svchost.exe"
            5⤵
            • Modifies registry class
            PID:1780
          • C:\Windows\system32\cmd.exe
            "C:\Windows\system32\cmd.exe"
            5⤵
            • Modifies registry class
            PID:2224
          • C:\Windows\explorer.exe
            "C:\Windows\explorer.exe"
            5⤵
            • Modifies registry class
            PID:1856
          • C:\Windows\system32\svchost.exe
            "C:\Windows\system32\svchost.exe"
            5⤵
            • Modifies registry class
            PID:1252
          • C:\Windows\system32\cmd.exe
            "C:\Windows\system32\cmd.exe"
            5⤵
            • Modifies registry class
            PID:3256
          • C:\Windows\explorer.exe
            "C:\Windows\explorer.exe"
            5⤵
            • Modifies registry class
            PID:2344
          • C:\Windows\system32\svchost.exe
            "C:\Windows\system32\svchost.exe"
            5⤵
            • Modifies registry class
            PID:1808
          • C:\Windows\system32\cmd.exe
            "C:\Windows\system32\cmd.exe"
            5⤵
            • Modifies registry class
            PID:3872
          • C:\Windows\explorer.exe
            "C:\Windows\explorer.exe"
            5⤵
            • Modifies registry class
            PID:4540
          • C:\Windows\system32\svchost.exe
            "C:\Windows\system32\svchost.exe"
            5⤵
            • Modifies registry class
            PID:3516
          • C:\Windows\system32\cmd.exe
            "C:\Windows\system32\cmd.exe"
            5⤵
            • Modifies registry class
            PID:4980
          • C:\Windows\explorer.exe
            "C:\Windows\explorer.exe"
            5⤵
            • Modifies registry class
            PID:1268
          • C:\Windows\system32\svchost.exe
            "C:\Windows\system32\svchost.exe"
            5⤵
            • Modifies registry class
            PID:2964
  • C:\Windows\System32\rundll32.exe
    C:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding
    1⤵
      PID:920
    • 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=3768 --field-trial-handle=2284,i,15722001240173834669,15048020084704567542,262144 --variations-seed-version /prefetch:8
      1⤵
        PID:3572

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

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      Downloads

      • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_osovsnfr.ckc.ps1

        Filesize

        60B

        MD5

        d17fe0a3f47be24a6453e9ef58c94641

        SHA1

        6ab83620379fc69f80c0242105ddffd7d98d5d9d

        SHA256

        96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

        SHA512

        5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

      • C:\Users\Admin\AppData\Local\Temp\tmpE03E.tmp.bat

        Filesize

        151B

        MD5

        a91c96a4a6edbae14b65c0691151c992

        SHA1

        dde6175ea839c15024d525b5dc59a25fd3a0decf

        SHA256

        b14cccae701aac9ede04387893a8299cb1b0e4bceffd2833ddb2de429cb8e66b

        SHA512

        89184abc39637a75da2870cfc06cf982af7b60005f7c24fa38a1c7ff87ae416532b252d97a7c1108b4b668a41cdd959887272f43284fc7779a883dfae1144e0c

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

        Filesize

        757KB

        MD5

        0aee27ff78ad1b6de193fb9527f2bad1

        SHA1

        62510b0be0084347ef5a26191de2b87423c96ff3

        SHA256

        784701d5138d608aacea3c83d5326af091766d37bc8be5f8aebb8d238f8249fa

        SHA512

        0020a8808c94ceae9df24b36c1ebfcc8b09b550bee85c01a89a268f6e57eccd4ba3831c5b0a6af3649b10574c2840f8f3032bf206d0fd9ec250944153272b813

      • memory/560-88-0x000001D0BAF60000-0x000001D0BAFE5000-memory.dmp

        Filesize

        532KB

      • memory/1852-14-0x0000000140000000-0x000000014006A000-memory.dmp

        Filesize

        424KB

      • memory/1852-21-0x0000000140000000-0x000000014006A000-memory.dmp

        Filesize

        424KB

      • memory/1852-17-0x0000000140000000-0x000000014006A000-memory.dmp

        Filesize

        424KB

      • memory/3032-27-0x000001B9F0CC0000-0x000001B9F0CE2000-memory.dmp

        Filesize

        136KB

      • memory/3032-45-0x00007FF983BF0000-0x00007FF9846B1000-memory.dmp

        Filesize

        10.8MB

      • memory/3032-18-0x000001B9D65A0000-0x000001B9D65B0000-memory.dmp

        Filesize

        64KB

      • memory/3032-40-0x000001B9D65A0000-0x000001B9D65B0000-memory.dmp

        Filesize

        64KB

      • memory/3032-19-0x000001B9D65A0000-0x000001B9D65B0000-memory.dmp

        Filesize

        64KB

      • memory/3032-16-0x00007FF983BF0000-0x00007FF9846B1000-memory.dmp

        Filesize

        10.8MB

      • memory/3032-41-0x000001B9D65A0000-0x000001B9D65B0000-memory.dmp

        Filesize

        64KB

      • memory/3192-78-0x000001964BF30000-0x000001964BFB5000-memory.dmp

        Filesize

        532KB

      • memory/3420-9-0x00007FF984460000-0x00007FF984F21000-memory.dmp

        Filesize

        10.8MB

      • memory/3420-3-0x0000020EFC680000-0x0000020EFC73E000-memory.dmp

        Filesize

        760KB

      • memory/3420-0-0x0000020EE2190000-0x0000020EE2198000-memory.dmp

        Filesize

        32KB

      • memory/3420-1-0x00007FF984460000-0x00007FF984F21000-memory.dmp

        Filesize

        10.8MB

      • memory/3420-2-0x0000020EE2550000-0x0000020EE2560000-memory.dmp

        Filesize

        64KB

      • memory/3968-46-0x00007FF983BF0000-0x00007FF9846B1000-memory.dmp

        Filesize

        10.8MB

      • memory/3968-13-0x00007FF983BF0000-0x00007FF9846B1000-memory.dmp

        Filesize

        10.8MB

      • memory/4336-68-0x0000000002B70000-0x0000000002BF5000-memory.dmp

        Filesize

        532KB

      • memory/4676-48-0x000002478D670000-0x000002478D6F5000-memory.dmp

        Filesize

        532KB

      • memory/4708-58-0x000001648CAD0000-0x000001648CB55000-memory.dmp

        Filesize

        532KB

      • memory/4780-20-0x00000000012E0000-0x00000000012E1000-memory.dmp

        Filesize

        4KB

      • memory/4780-28-0x0000000002F50000-0x0000000002FD5000-memory.dmp

        Filesize

        532KB