Analysis

  • max time kernel
    68s
  • max time network
    64s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    01-03-2024 10:37

General

  • Target

    injector.exe

  • Size

    230KB

  • MD5

    289b67e48da10ab68939056c3cd8bb2b

  • SHA1

    2b4665f3f61098c4ceec9208a01e75ac7e4b1d3d

  • SHA256

    545757791f0b6759a9da98687651c1ad9f32f86d8f3e7f5d163d2ebba8f4bc3e

  • SHA512

    c2c63302ebfc08c2be9e56174c2adc0b78a155d8d4954fc96532e37c459477cf896f3ab1ff60df181cd541c6cefffcd67f707ef07bde8b1474b6c3131034ff5c

  • SSDEEP

    6144:dloZM9rIkd8g+EtXHkv/iD4otP77Byal4gRj++7okb8e1mCi:/oZOL+EP8otP77Byal4gRj++7x4

Score
10/10

Malware Config

Signatures

  • Detect Umbral payload 1 IoCs
  • Umbral

    Umbral stealer is an opensource moduler stealer written in C#.

  • Drops file in Drivers directory 1 IoCs
  • Reads user/profile data of web browsers 2 TTPs

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

  • 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.

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

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

  • Detects videocard installed 1 TTPs 1 IoCs

    Uses WMIC.exe to determine videocard installed.

  • Runs ping.exe 1 TTPs 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 43 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of FindShellTrayWindow 44 IoCs
  • Suspicious use of SendNotifyMessage 44 IoCs
  • Suspicious use of WriteProcessMemory 24 IoCs
  • Views/modifies file attributes 1 TTPs 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\injector.exe
    "C:\Users\Admin\AppData\Local\Temp\injector.exe"
    1⤵
    • Drops file in Drivers directory
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4820
    • C:\Windows\SYSTEM32\attrib.exe
      "attrib.exe" +h +s "C:\Users\Admin\AppData\Local\Temp\injector.exe"
      2⤵
      • Views/modifies file attributes
      PID:2716
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      "powershell.exe" Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Local\Temp\injector.exe'
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1344
    • 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
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2560
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      "powershell.exe" Get-ItemPropertyValue -Path HKCU:SOFTWARE\Roblox\RobloxStudioBrowser\roblox.com -Name .ROBLOSECURITY
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:4724
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      "powershell.exe" Get-ItemPropertyValue -Path HKLN:SOFTWARE\Roblox\RobloxStudioBrowser\roblox.com -Name .ROBLOSECURITY
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1484
    • C:\Windows\System32\Wbem\wmic.exe
      "wmic.exe" os get Caption
      2⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:4192
    • C:\Windows\System32\Wbem\wmic.exe
      "wmic.exe" computersystem get totalphysicalmemory
      2⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:2396
    • C:\Windows\System32\Wbem\wmic.exe
      "wmic.exe" csproduct get uuid
      2⤵
        PID:4768
      • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
        "powershell.exe" Get-ItemPropertyValue -Path 'HKLM:System\CurrentControlSet\Control\Session Manager\Environment' -Name PROCESSOR_IDENTIFIER
        2⤵
        • Suspicious behavior: EnumeratesProcesses
        PID:4996
      • C:\Windows\System32\Wbem\wmic.exe
        "wmic" path win32_VideoController get name
        2⤵
        • Detects videocard installed
        PID:1724
      • C:\Windows\SYSTEM32\cmd.exe
        "cmd.exe" /c ping localhost && del /F /A h "C:\Users\Admin\AppData\Local\Temp\injector.exe" && pause
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:3960
        • C:\Windows\system32\PING.EXE
          ping localhost
          3⤵
          • Runs ping.exe
          PID:5092
    • C:\Windows\system32\taskmgr.exe
      "C:\Windows\system32\taskmgr.exe" /4
      1⤵
      • Checks SCSI registry key(s)
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      PID:1000

    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\Windows\PowerShell\StartupProfileData-NonInteractive

      Filesize

      1KB

      MD5

      32aba9fc1f9be72d6cec0c940a447e7d

      SHA1

      e7592845595240ce5b9fb7446ef662a07d776dbb

      SHA256

      9780e7a93d5d6ab92e2d0c24a613d978bdedd8acab2a7e7bd383121adefd4f9b

      SHA512

      a9c81be11554941af0b08129302bd77ba131e04e88b983c9203f9f7a26bfc1b102b75bc19a95ae68beb0da0dbcbbac681ad53b79f274af35af28dbb10dfa1a9b

    • 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

      948B

      MD5

      2af06a6b36db9473e4a7d9c7ab72b70b

      SHA1

      8ef34b9b961e51bdd1b8d7d9db2ec1b0a4764645

      SHA256

      18a2aa7e245c6732f95fb7749b2b4d29007f2c56a9c5bfbc5e3c127bdfe5f158

      SHA512

      3495567a5d5af94ae27be51313d9e2630c52017d808042fe0d56baa34fa1d246eb15c253d14c77c77a1d8f2f1c81680e623044ae95415b095696e7fa141ac7cf

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

      Filesize

      1KB

      MD5

      276798eeb29a49dc6e199768bc9c2e71

      SHA1

      5fdc8ccb897ac2df7476fbb07517aca5b7a6205b

      SHA256

      cd0a1056e8f1b6cb5cb328532239d802f4e2aa8f8fcdc0fcb487684bd68e0dcc

      SHA512

      0d34fce64bbefc57d64fa6e03ca886952263d5f24df9c1c4cce6a1e8f5a47a9a21e9820f8d38caa7f7b43a52336ce00b738ea18419aaa7c788b72e04ce19e4f2

    • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_nyi2rftv.w5v.ps1

      Filesize

      60B

      MD5

      d17fe0a3f47be24a6453e9ef58c94641

      SHA1

      6ab83620379fc69f80c0242105ddffd7d98d5d9d

      SHA256

      96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

      SHA512

      5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

    • memory/1000-110-0x0000020F322B0000-0x0000020F322B1000-memory.dmp

      Filesize

      4KB

    • memory/1000-112-0x0000020F322B0000-0x0000020F322B1000-memory.dmp

      Filesize

      4KB

    • memory/1000-116-0x0000020F322B0000-0x0000020F322B1000-memory.dmp

      Filesize

      4KB

    • memory/1000-117-0x0000020F322B0000-0x0000020F322B1000-memory.dmp

      Filesize

      4KB

    • memory/1000-118-0x0000020F322B0000-0x0000020F322B1000-memory.dmp

      Filesize

      4KB

    • memory/1000-111-0x0000020F322B0000-0x0000020F322B1000-memory.dmp

      Filesize

      4KB

    • memory/1000-119-0x0000020F322B0000-0x0000020F322B1000-memory.dmp

      Filesize

      4KB

    • memory/1000-120-0x0000020F322B0000-0x0000020F322B1000-memory.dmp

      Filesize

      4KB

    • memory/1000-121-0x0000020F322B0000-0x0000020F322B1000-memory.dmp

      Filesize

      4KB

    • memory/1000-122-0x0000020F322B0000-0x0000020F322B1000-memory.dmp

      Filesize

      4KB

    • memory/1344-4-0x000001F7D14A0000-0x000001F7D14B0000-memory.dmp

      Filesize

      64KB

    • memory/1344-11-0x000001F7D15B0000-0x000001F7D15D2000-memory.dmp

      Filesize

      136KB

    • memory/1344-3-0x00007FFA6F820000-0x00007FFA702E1000-memory.dmp

      Filesize

      10.8MB

    • memory/1344-5-0x000001F7D14A0000-0x000001F7D14B0000-memory.dmp

      Filesize

      64KB

    • memory/1344-18-0x00007FFA6F820000-0x00007FFA702E1000-memory.dmp

      Filesize

      10.8MB

    • memory/1484-69-0x00007FFA6F820000-0x00007FFA702E1000-memory.dmp

      Filesize

      10.8MB

    • memory/1484-84-0x00007FFA6F820000-0x00007FFA702E1000-memory.dmp

      Filesize

      10.8MB

    • memory/1484-82-0x000002CCFB5C0000-0x000002CCFB5D0000-memory.dmp

      Filesize

      64KB

    • memory/1484-70-0x000002CCFB5C0000-0x000002CCFB5D0000-memory.dmp

      Filesize

      64KB

    • memory/2560-27-0x000001FAB3580000-0x000001FAB3590000-memory.dmp

      Filesize

      64KB

    • memory/2560-31-0x000001FAB3580000-0x000001FAB3590000-memory.dmp

      Filesize

      64KB

    • memory/2560-26-0x00007FFA6F820000-0x00007FFA702E1000-memory.dmp

      Filesize

      10.8MB

    • memory/2560-33-0x000001FAB3580000-0x000001FAB3590000-memory.dmp

      Filesize

      64KB

    • memory/2560-35-0x00007FFA6F820000-0x00007FFA702E1000-memory.dmp

      Filesize

      10.8MB

    • memory/4724-41-0x00007FFA6F820000-0x00007FFA702E1000-memory.dmp

      Filesize

      10.8MB

    • memory/4724-66-0x00000252755B0000-0x00000252755C0000-memory.dmp

      Filesize

      64KB

    • memory/4724-56-0x00000252755B0000-0x00000252755C0000-memory.dmp

      Filesize

      64KB

    • memory/4724-55-0x00000252755B0000-0x00000252755C0000-memory.dmp

      Filesize

      64KB

    • memory/4724-68-0x00007FFA6F820000-0x00007FFA702E1000-memory.dmp

      Filesize

      10.8MB

    • memory/4820-86-0x0000020BA1120000-0x0000020BA112A000-memory.dmp

      Filesize

      40KB

    • memory/4820-0-0x0000020B9F360000-0x0000020B9F3A0000-memory.dmp

      Filesize

      256KB

    • memory/4820-1-0x00007FFA6F820000-0x00007FFA702E1000-memory.dmp

      Filesize

      10.8MB

    • memory/4820-109-0x00007FFA6F820000-0x00007FFA702E1000-memory.dmp

      Filesize

      10.8MB

    • memory/4820-40-0x0000020BA10D0000-0x0000020BA10EE000-memory.dmp

      Filesize

      120KB

    • memory/4820-39-0x0000020BB9BA0000-0x0000020BB9BF0000-memory.dmp

      Filesize

      320KB

    • memory/4820-38-0x0000020BA11A0000-0x0000020BA1216000-memory.dmp

      Filesize

      472KB

    • memory/4820-2-0x0000020BA1190000-0x0000020BA11A0000-memory.dmp

      Filesize

      64KB

    • memory/4820-71-0x00007FFA6F820000-0x00007FFA702E1000-memory.dmp

      Filesize

      10.8MB

    • memory/4820-87-0x0000020BA1150000-0x0000020BA1162000-memory.dmp

      Filesize

      72KB

    • memory/4996-97-0x000001F52A460000-0x000001F52A470000-memory.dmp

      Filesize

      64KB

    • memory/4996-95-0x00007FFA6F820000-0x00007FFA702E1000-memory.dmp

      Filesize

      10.8MB

    • memory/4996-96-0x000001F52A460000-0x000001F52A470000-memory.dmp

      Filesize

      64KB

    • memory/4996-104-0x00007FFA6F820000-0x00007FFA702E1000-memory.dmp

      Filesize

      10.8MB