Analysis

  • max time kernel
    1199s
  • max time network
    1203s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240412-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240412-enlocale:en-usos:windows10-2004-x64system
  • submitted
    22-04-2024 16:40

General

  • Target

    Extreme Injector v3.exe

  • Size

    1.9MB

  • MD5

    8a85b1dbf679febd30fe2f55a811de58

  • SHA1

    d06b7f96415b1ff21adff49ecd84b7b06f01fe6e

  • SHA256

    cfe2e6d9739a3251ed06594563f1d66e9dd018b3c74a96ca3734cca7880fb105

  • SHA512

    9b9ba49b1bc4ef056ade2146ad915eeba819485d49dd2825b4f914b68ec572304c8138f1c202508f40a0e8db8c6443270da333e323d631b27897edf915fefabf

  • SSDEEP

    49152:d4FdetMVCK1LVXXQezP3+Wgm18VeWo/Wz3XEVM:udkCCK3XXQO18VeWJLE

Malware Config

Extracted

Family

orcus

C2

s7vety-47274.portmap.host:47274

Mutex

2dfc3c3857c0466484c2056fcb13e0c9

Attributes
  • autostart_method

    Registry

  • enable_keylogger

    false

  • install_path

    %temp%\Windows Updater\updateclient.exe

  • reconnect_delay

    10000

  • registry_keyname

    WindowsUpdater

  • taskscheduler_taskname

    Orcus

  • watchdog_path

    AppData\OrcusWatchdog.exe

Signatures

  • Orcus

    Orcus is a Remote Access Trojan that is being sold on underground forums.

  • Orcus main payload 1 IoCs
  • Orcurs Rat Executable 2 IoCs
  • Checks computer location settings 2 TTPs 2 IoCs

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

  • Executes dropped EXE 9 IoCs
  • 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 1 IoCs

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

  • Drops file in System32 directory 3 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of WriteProcessMemory 16 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\Extreme Injector v3.exe
    "C:\Users\Admin\AppData\Local\Temp\Extreme Injector v3.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1124
    • C:\Users\Admin\AppData\Local\Temp\Update.exe
      "C:\Users\Admin\AppData\Local\Temp\Update.exe"
      2⤵
      • Checks computer location settings
      • Executes dropped EXE
      • Drops file in System32 directory
      • Suspicious use of WriteProcessMemory
      PID:876
      • C:\Windows\SysWOW64\WindowsInput.exe
        "C:\Windows\SysWOW64\WindowsInput.exe" --install
        3⤵
        • Executes dropped EXE
        • Drops file in System32 directory
        PID:4888
      • C:\Users\Admin\AppData\Local\Temp\Windows Updater\updateclient.exe
        "C:\Users\Admin\AppData\Local\Temp\Windows Updater\updateclient.exe"
        3⤵
        • Executes dropped EXE
        • Adds Run key to start application
        • Suspicious behavior: GetForegroundWindowSpam
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:4400
        • C:\Windows\SYSTEM32\cmd.exe
          "cmd.exe"
          4⤵
            PID:3352
          • C:\Windows\SYSTEM32\cmd.exe
            "cmd.exe"
            4⤵
            • Suspicious use of WriteProcessMemory
            PID:4604
            • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
              powershell
              5⤵
              • Suspicious behavior: EnumeratesProcesses
              PID:3684
          • C:\Windows\system32\cmd.exe
            C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\{5fecb8de-1de9-4c82-8db7-35acd58378c1}.bat""
            4⤵
              PID:4632
        • C:\Users\Admin\AppData\Local\Temp\Extreme Injector v3_or.exe
          "C:\Users\Admin\AppData\Local\Temp\Extreme Injector v3_or.exe"
          2⤵
          • Executes dropped EXE
          • Suspicious use of AdjustPrivilegeToken
          PID:2716
      • C:\Windows\SysWOW64\WindowsInput.exe
        "C:\Windows\SysWOW64\WindowsInput.exe"
        1⤵
        • Executes dropped EXE
        PID:3000
      • C:\Users\Admin\AppData\Local\Temp\Windows Updater\updateclient.exe
        "C:\Users\Admin\AppData\Local\Temp\Windows Updater\updateclient.exe"
        1⤵
        • Executes dropped EXE
        PID:3256
      • C:\Users\Admin\AppData\Local\Temp\Windows Updater\updateclient.exe
        "C:\Users\Admin\AppData\Local\Temp\Windows Updater\updateclient.exe"
        1⤵
        • Executes dropped EXE
        PID:4016
      • C:\Users\Admin\AppData\Local\Temp\Windows Updater\updateclient.exe
        "C:\Users\Admin\AppData\Local\Temp\Windows Updater\updateclient.exe"
        1⤵
        • Executes dropped EXE
        PID:4608
      • C:\Users\Admin\AppData\Local\Temp\Windows Updater\updateclient.exe
        "C:\Users\Admin\AppData\Local\Temp\Windows Updater\updateclient.exe"
        1⤵
        • Executes dropped EXE
        PID:2040

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

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      Downloads

      • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\updateclient.exe.log

        Filesize

        1KB

        MD5

        9be3069b2cf9222dde6c28dd9180a35a

        SHA1

        14b76614ed5c94c513b10ada5bd642e888fc1231

        SHA256

        5e4c38466764be178ea21ba3149d0580d25d035b57e081b3abb9c06a19cfd67a

        SHA512

        043256f38c20d8765ddf2f1d5912249bfbb017c0b630d24d9e4894f4a759dec66bf0ffaf878ac69e9dfd6db7ec5e090dd69de2333d83299ef43888c394398885

      • C:\Users\Admin\AppData\Local\Temp\Extreme Injector v3_or.exe

        Filesize

        1.9MB

        MD5

        ec801a7d4b72a288ec6c207bb9ff0131

        SHA1

        32eec2ae1f9e201516fa7fcdc16c4928f7997561

        SHA256

        b65f40618f584303ca0bcf9b5f88c233cc4237699c0c4bf40ba8facbe8195a46

        SHA512

        a07dd5e8241de73ce65ff8d74acef4942b85fc45cf6a7baafd3c0f9d330b08e7412f2023ba667e99b40e732a65e8fb4389f7fe73c7b6256ca71e63afe46cdcac

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

        Filesize

        918KB

        MD5

        8c6658a8808482bfab2b8ac9840f9e51

        SHA1

        c941721888b49c97c456af1b195a4018e4edeb0c

        SHA256

        95abbef690302956860c174bfa7ee8764f5d4379a2e13a6fd7c945ab2fd113a0

        SHA512

        4fe5a5cbf4baa919320ce2736cdac33e273719272ce76233466e98d334e94a33c8402b8656f35d4d099e3495370953fda1f943cfe07774551420eff004d3172d

      • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_2jusglpd.wmr.ps1

        Filesize

        60B

        MD5

        d17fe0a3f47be24a6453e9ef58c94641

        SHA1

        6ab83620379fc69f80c0242105ddffd7d98d5d9d

        SHA256

        96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

        SHA512

        5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

      • C:\Users\Admin\AppData\Local\Temp\{5fecb8de-1de9-4c82-8db7-35acd58378c1}.bat

        Filesize

        548B

        MD5

        35a4b945307261410c5f3f7ef58fa9d9

        SHA1

        7c3675942f763b450f2c18a9aa2ac75472f29230

        SHA256

        3722f68792ca3fc322eec292ff0512b8878fa0ccdd1712be11fb9eaa432ca833

        SHA512

        3069aaeb67efcefc93f4c9425830efd66eef01b8644ca6b048e221b32d4fa518f2fa827584d6d466662fe81f5e03c7f6a1242aaf30d172042c58efef364117e6

      • C:\Windows\SysWOW64\WindowsInput.exe

        Filesize

        21KB

        MD5

        e6fcf516d8ed8d0d4427f86e08d0d435

        SHA1

        c7691731583ab7890086635cb7f3e4c22ca5e409

        SHA256

        8dbe814359391ed6b0b5b182039008cf1d00964da9fbc4747f46242a95c24337

        SHA512

        c496cf8e2e222fe1e19051b291e6860f31aae39f54369c1c5e8c9758c4b56e8af904e3e536e743a0a6fdbbf8478afba4baee92e13fc1b3073376ac6bf4a7948e

      • C:\Windows\SysWOW64\WindowsInput.exe.config

        Filesize

        357B

        MD5

        a2b76cea3a59fa9af5ea21ff68139c98

        SHA1

        35d76475e6a54c168f536e30206578babff58274

        SHA256

        f99ef5bf79a7c43701877f0bb0b890591885bb0a3d605762647cc8ffbf10c839

        SHA512

        b52608b45153c489419228864ecbcb92be24c644d470818dfe15f8c7e661a7bcd034ea13ef401f2b84ad5c29a41c9b4c7d161cc33ae3ef71659bc2bca1a8c4ad

      • memory/876-33-0x00000000013B0000-0x00000000013C0000-memory.dmp

        Filesize

        64KB

      • memory/876-40-0x0000000001370000-0x0000000001378000-memory.dmp

        Filesize

        32KB

      • memory/876-29-0x0000000000AC0000-0x0000000000BAC000-memory.dmp

        Filesize

        944KB

      • memory/876-39-0x0000000001380000-0x0000000001392000-memory.dmp

        Filesize

        72KB

      • memory/876-31-0x00007FFFE6210000-0x00007FFFE6CD1000-memory.dmp

        Filesize

        10.8MB

      • memory/876-36-0x0000000001330000-0x000000000133E000-memory.dmp

        Filesize

        56KB

      • memory/876-84-0x00007FFFE6210000-0x00007FFFE6CD1000-memory.dmp

        Filesize

        10.8MB

      • memory/876-34-0x000000001B780000-0x000000001B7DC000-memory.dmp

        Filesize

        368KB

      • memory/1124-4-0x000000001B9A0000-0x000000001BA02000-memory.dmp

        Filesize

        392KB

      • memory/1124-3-0x00007FFFF4D90000-0x00007FFFF5731000-memory.dmp

        Filesize

        9.6MB

      • memory/1124-35-0x00007FFFF4D90000-0x00007FFFF5731000-memory.dmp

        Filesize

        9.6MB

      • memory/1124-5-0x0000000001330000-0x0000000001340000-memory.dmp

        Filesize

        64KB

      • memory/1124-2-0x0000000001330000-0x0000000001340000-memory.dmp

        Filesize

        64KB

      • memory/1124-1-0x00007FFFF4D90000-0x00007FFFF5731000-memory.dmp

        Filesize

        9.6MB

      • memory/1124-0-0x000000001B8F0000-0x000000001B996000-memory.dmp

        Filesize

        664KB

      • memory/2716-110-0x000000001B380000-0x000000001B390000-memory.dmp

        Filesize

        64KB

      • memory/2716-100-0x000000001B380000-0x000000001B390000-memory.dmp

        Filesize

        64KB

      • memory/2716-109-0x000000001B380000-0x000000001B390000-memory.dmp

        Filesize

        64KB

      • memory/2716-38-0x000000001B380000-0x000000001B390000-memory.dmp

        Filesize

        64KB

      • memory/2716-111-0x000000001B380000-0x000000001B390000-memory.dmp

        Filesize

        64KB

      • memory/2716-97-0x000000001B380000-0x000000001B390000-memory.dmp

        Filesize

        64KB

      • memory/2716-96-0x000000001B380000-0x000000001B390000-memory.dmp

        Filesize

        64KB

      • memory/2716-93-0x00007FFFE6210000-0x00007FFFE6CD1000-memory.dmp

        Filesize

        10.8MB

      • memory/2716-32-0x0000000000370000-0x0000000000556000-memory.dmp

        Filesize

        1.9MB

      • memory/2716-37-0x00007FFFE6210000-0x00007FFFE6CD1000-memory.dmp

        Filesize

        10.8MB

      • memory/3000-67-0x000000001AB50000-0x000000001AC5A000-memory.dmp

        Filesize

        1.0MB

      • memory/3000-104-0x000000001A630000-0x000000001A640000-memory.dmp

        Filesize

        64KB

      • memory/3000-101-0x00007FFFE6210000-0x00007FFFE6CD1000-memory.dmp

        Filesize

        10.8MB

      • memory/3000-65-0x00007FFFE6210000-0x00007FFFE6CD1000-memory.dmp

        Filesize

        10.8MB

      • memory/3000-66-0x000000001A630000-0x000000001A640000-memory.dmp

        Filesize

        64KB

      • memory/3256-92-0x00007FFFE6210000-0x00007FFFE6CD1000-memory.dmp

        Filesize

        10.8MB

      • memory/3256-95-0x000000001B490000-0x000000001B4A0000-memory.dmp

        Filesize

        64KB

      • memory/3256-99-0x00007FFFE6210000-0x00007FFFE6CD1000-memory.dmp

        Filesize

        10.8MB

      • memory/3684-115-0x000001F64B2C0000-0x000001F64B2D0000-memory.dmp

        Filesize

        64KB

      • memory/3684-126-0x000001F663AF0000-0x000001F663B34000-memory.dmp

        Filesize

        272KB

      • memory/3684-127-0x000001F663F70000-0x000001F663FE6000-memory.dmp

        Filesize

        472KB

      • memory/3684-129-0x00007FFFE6210000-0x00007FFFE6CD1000-memory.dmp

        Filesize

        10.8MB

      • memory/3684-137-0x00007FFFE6210000-0x00007FFFE6CD1000-memory.dmp

        Filesize

        10.8MB

      • memory/3684-130-0x000001F64B2C0000-0x000001F64B2D0000-memory.dmp

        Filesize

        64KB

      • memory/3684-131-0x000001F64B2C0000-0x000001F64B2D0000-memory.dmp

        Filesize

        64KB

      • memory/3684-113-0x00007FFFE6210000-0x00007FFFE6CD1000-memory.dmp

        Filesize

        10.8MB

      • memory/3684-122-0x000001F663950000-0x000001F663972000-memory.dmp

        Filesize

        136KB

      • memory/3684-114-0x000001F64B2C0000-0x000001F64B2D0000-memory.dmp

        Filesize

        64KB

      • memory/4016-140-0x00007FFFE6210000-0x00007FFFE6CD1000-memory.dmp

        Filesize

        10.8MB

      • memory/4016-142-0x00007FFFE6210000-0x00007FFFE6CD1000-memory.dmp

        Filesize

        10.8MB

      • memory/4016-141-0x000000001B3D0000-0x000000001B3E0000-memory.dmp

        Filesize

        64KB

      • memory/4400-90-0x000000001C150000-0x000000001C168000-memory.dmp

        Filesize

        96KB

      • memory/4400-85-0x00007FFFE6210000-0x00007FFFE6CD1000-memory.dmp

        Filesize

        10.8MB

      • memory/4400-112-0x000000001BD60000-0x000000001BD70000-memory.dmp

        Filesize

        64KB

      • memory/4400-108-0x000000001BD60000-0x000000001BD70000-memory.dmp

        Filesize

        64KB

      • memory/4400-107-0x000000001CE20000-0x000000001CFE2000-memory.dmp

        Filesize

        1.8MB

      • memory/4400-106-0x000000001BD60000-0x000000001BD70000-memory.dmp

        Filesize

        64KB

      • memory/4400-105-0x00007FFFE6210000-0x00007FFFE6CD1000-memory.dmp

        Filesize

        10.8MB

      • memory/4400-94-0x000000001BD60000-0x000000001BD70000-memory.dmp

        Filesize

        64KB

      • memory/4400-91-0x000000001C280000-0x000000001C290000-memory.dmp

        Filesize

        64KB

      • memory/4400-86-0x000000001BD60000-0x000000001BD70000-memory.dmp

        Filesize

        64KB

      • memory/4400-88-0x000000001BF70000-0x000000001BFBE000-memory.dmp

        Filesize

        312KB

      • memory/4400-87-0x000000001BD50000-0x000000001BD62000-memory.dmp

        Filesize

        72KB

      • memory/4888-57-0x000000001B480000-0x000000001B490000-memory.dmp

        Filesize

        64KB

      • memory/4888-54-0x00000000007F0000-0x00000000007FC000-memory.dmp

        Filesize

        48KB

      • memory/4888-55-0x00007FFFE6210000-0x00007FFFE6CD1000-memory.dmp

        Filesize

        10.8MB

      • memory/4888-62-0x00007FFFE6210000-0x00007FFFE6CD1000-memory.dmp

        Filesize

        10.8MB

      • memory/4888-58-0x000000001B3E0000-0x000000001B41C000-memory.dmp

        Filesize

        240KB

      • memory/4888-56-0x00000000029A0000-0x00000000029B2000-memory.dmp

        Filesize

        72KB