Analysis

  • max time kernel
    122s
  • max time network
    122s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    20-03-2024 17:09

General

  • Target

    0270d5596c31ec92bb6eaacb220ef3ac5ee8e1df60d38e46b8d1b7b5b2a9b519.exe

  • Size

    229KB

  • MD5

    3cf0aadd7a3224eea6a51986d4762872

  • SHA1

    b0a6bcb3a6b4fbb45e808b64877dea61500f588a

  • SHA256

    0270d5596c31ec92bb6eaacb220ef3ac5ee8e1df60d38e46b8d1b7b5b2a9b519

  • SHA512

    88a6992e76cfb14d3f0039c3d14efce33aad9f3631f23f2e276d753dedbd032d9e350472877457084070fbbed1f44be8cd116c800ffaf360f21240718226b209

  • SSDEEP

    6144:lloZMUrIkd8g+EtXHkv/iD4fOuiiAfboAxUyzzq9wab8e1mWi:noZrL+EP8fOuiiAfboAxUyzzqpg

Score
10/10

Malware Config

Signatures

  • Detect Umbral payload 2 IoCs
  • Umbral

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

  • Detects executables attemping to enumerate video devices using WMI 2 IoCs
  • Detects executables containing possible sandbox analysis VM names 2 IoCs
  • Detects executables containing possible sandbox analysis VM usernames 2 IoCs
  • Detects executables containing possible sandbox system UUIDs 2 IoCs
  • Drops file in Drivers directory 1 IoCs
  • Deletes itself 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.

  • Detects videocard installed 1 TTPs 1 IoCs

    Uses WMIC.exe to determine videocard installed.

  • Runs ping.exe 1 TTPs 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 5 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of WriteProcessMemory 36 IoCs
  • Views/modifies file attributes 1 TTPs 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\0270d5596c31ec92bb6eaacb220ef3ac5ee8e1df60d38e46b8d1b7b5b2a9b519.exe
    "C:\Users\Admin\AppData\Local\Temp\0270d5596c31ec92bb6eaacb220ef3ac5ee8e1df60d38e46b8d1b7b5b2a9b519.exe"
    1⤵
    • Drops file in Drivers directory
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1948
    • C:\Windows\system32\attrib.exe
      "attrib.exe" +h +s "C:\Users\Admin\AppData\Local\Temp\0270d5596c31ec92bb6eaacb220ef3ac5ee8e1df60d38e46b8d1b7b5b2a9b519.exe"
      2⤵
      • Views/modifies file attributes
      PID:2992
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      "powershell.exe" Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Local\Temp\0270d5596c31ec92bb6eaacb220ef3ac5ee8e1df60d38e46b8d1b7b5b2a9b519.exe'
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2488
    • 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:2640
    • 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:2452
    • 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:2364
    • C:\Windows\System32\Wbem\wmic.exe
      "wmic.exe" os get Caption
      2⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:2308
    • C:\Windows\System32\Wbem\wmic.exe
      "wmic.exe" computersystem get totalphysicalmemory
      2⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:2024
    • C:\Windows\System32\Wbem\wmic.exe
      "wmic.exe" csproduct get uuid
      2⤵
        PID:2008
      • 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:2740
      • C:\Windows\System32\Wbem\wmic.exe
        "wmic" path win32_VideoController get name
        2⤵
        • Detects videocard installed
        PID:1616
      • C:\Windows\system32\cmd.exe
        "cmd.exe" /c ping localhost && del /F /A h "C:\Users\Admin\AppData\Local\Temp\0270d5596c31ec92bb6eaacb220ef3ac5ee8e1df60d38e46b8d1b7b5b2a9b519.exe" && pause
        2⤵
        • Deletes itself
        • Suspicious use of WriteProcessMemory
        PID:584
        • C:\Windows\system32\PING.EXE
          ping localhost
          3⤵
          • Runs ping.exe
          PID:2724

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

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    Downloads

    • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\590aee7bdd69b59b.customDestinations-ms

      Filesize

      7KB

      MD5

      1245f9200737aece912f127e8548ad25

      SHA1

      2b19100f9af065a2d91112b37a258dca9228a2af

      SHA256

      a8dcd268f9a2d9e0c6a87685f2b3b2000cc277f3918b44f796cd09172228b9c9

      SHA512

      09609ae27f9f4baf754c0b8c38d7ccf7acf51beaa636af42df872f3a51a6d17179d71bfb24daad0d02f66ef46500e27361c95dd8ce4e2962612f55edaf7fbe3a

    • memory/1948-57-0x000007FEF5BC0000-0x000007FEF65AC000-memory.dmp

      Filesize

      9.9MB

    • memory/1948-0-0x0000000001000000-0x0000000001040000-memory.dmp

      Filesize

      256KB

    • memory/1948-66-0x000000001AF00000-0x000000001AF80000-memory.dmp

      Filesize

      512KB

    • memory/1948-2-0x000000001AF00000-0x000000001AF80000-memory.dmp

      Filesize

      512KB

    • memory/1948-81-0x000007FEF5BC0000-0x000007FEF65AC000-memory.dmp

      Filesize

      9.9MB

    • memory/1948-1-0x000007FEF5BC0000-0x000007FEF65AC000-memory.dmp

      Filesize

      9.9MB

    • memory/2364-59-0x00000000028C0000-0x0000000002940000-memory.dmp

      Filesize

      512KB

    • memory/2364-55-0x000007FEEDB30000-0x000007FEEE4CD000-memory.dmp

      Filesize

      9.6MB

    • memory/2364-56-0x00000000028C0000-0x0000000002940000-memory.dmp

      Filesize

      512KB

    • memory/2364-58-0x000007FEEDB30000-0x000007FEEE4CD000-memory.dmp

      Filesize

      9.6MB

    • memory/2364-60-0x00000000028C0000-0x0000000002940000-memory.dmp

      Filesize

      512KB

    • memory/2364-61-0x00000000028C0000-0x0000000002940000-memory.dmp

      Filesize

      512KB

    • memory/2364-62-0x000007FEEDB30000-0x000007FEEE4CD000-memory.dmp

      Filesize

      9.6MB

    • memory/2452-43-0x000007FEEE4D0000-0x000007FEEEE6D000-memory.dmp

      Filesize

      9.6MB

    • memory/2452-44-0x0000000001EE0000-0x0000000001F60000-memory.dmp

      Filesize

      512KB

    • memory/2452-49-0x000007FEEE4D0000-0x000007FEEEE6D000-memory.dmp

      Filesize

      9.6MB

    • memory/2452-46-0x0000000001EE0000-0x0000000001F60000-memory.dmp

      Filesize

      512KB

    • memory/2452-48-0x0000000001EE0000-0x0000000001F60000-memory.dmp

      Filesize

      512KB

    • memory/2452-45-0x000007FEEE4D0000-0x000007FEEEE6D000-memory.dmp

      Filesize

      9.6MB

    • memory/2452-47-0x0000000001EE0000-0x0000000001F60000-memory.dmp

      Filesize

      512KB

    • memory/2488-12-0x0000000002AD0000-0x0000000002B50000-memory.dmp

      Filesize

      512KB

    • memory/2488-8-0x0000000001DA0000-0x0000000001DA8000-memory.dmp

      Filesize

      32KB

    • memory/2488-14-0x000007FEEE4D0000-0x000007FEEEE6D000-memory.dmp

      Filesize

      9.6MB

    • memory/2488-13-0x0000000002AD0000-0x0000000002B50000-memory.dmp

      Filesize

      512KB

    • memory/2488-11-0x000007FEEE4D0000-0x000007FEEEE6D000-memory.dmp

      Filesize

      9.6MB

    • memory/2488-10-0x0000000002AD0000-0x0000000002B50000-memory.dmp

      Filesize

      512KB

    • memory/2488-9-0x000007FEEE4D0000-0x000007FEEEE6D000-memory.dmp

      Filesize

      9.6MB

    • memory/2488-7-0x000000001B6B0000-0x000000001B992000-memory.dmp

      Filesize

      2.9MB

    • memory/2640-21-0x0000000001D30000-0x0000000001D38000-memory.dmp

      Filesize

      32KB

    • memory/2640-24-0x000007FEEDB30000-0x000007FEEE4CD000-memory.dmp

      Filesize

      9.6MB

    • memory/2640-20-0x000000001B790000-0x000000001BA72000-memory.dmp

      Filesize

      2.9MB

    • memory/2640-29-0x000007FEEDB30000-0x000007FEEE4CD000-memory.dmp

      Filesize

      9.6MB

    • memory/2640-28-0x0000000002C10000-0x0000000002C90000-memory.dmp

      Filesize

      512KB

    • memory/2640-27-0x0000000002C10000-0x0000000002C90000-memory.dmp

      Filesize

      512KB

    • memory/2640-25-0x0000000002C10000-0x0000000002C90000-memory.dmp

      Filesize

      512KB

    • memory/2640-26-0x0000000002C10000-0x0000000002C90000-memory.dmp

      Filesize

      512KB

    • memory/2640-23-0x0000000002C10000-0x0000000002C90000-memory.dmp

      Filesize

      512KB

    • memory/2640-22-0x000007FEEDB30000-0x000007FEEE4CD000-memory.dmp

      Filesize

      9.6MB

    • memory/2740-74-0x0000000002C10000-0x0000000002C90000-memory.dmp

      Filesize

      512KB

    • memory/2740-72-0x000000001B6D0000-0x000000001B9B2000-memory.dmp

      Filesize

      2.9MB

    • memory/2740-75-0x000007FEEE0F0000-0x000007FEEEA8D000-memory.dmp

      Filesize

      9.6MB

    • memory/2740-76-0x0000000002C10000-0x0000000002C90000-memory.dmp

      Filesize

      512KB

    • memory/2740-73-0x000007FEEE0F0000-0x000007FEEEA8D000-memory.dmp

      Filesize

      9.6MB

    • memory/2740-77-0x000007FEEE0F0000-0x000007FEEEA8D000-memory.dmp

      Filesize

      9.6MB