Analysis

  • max time kernel
    1199s
  • max time network
    1201s
  • 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 16:11

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 3 IoCs

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

  • Executes dropped EXE 10 IoCs
  • Reads WinSCP keys stored on the system 2 TTPs

    Tries to access WinSCP stored sessions.

  • Reads data files stored by FTP clients 2 TTPs

    Tries to access configuration files associated with programs like FileZilla.

  • 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
  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • 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).

  • Gathers network information 2 TTPs 1 IoCs

    Uses commandline utility to view network configuration.

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of WriteProcessMemory 22 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:4468
    • 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:2428
      • C:\Windows\SysWOW64\WindowsInput.exe
        "C:\Windows\SysWOW64\WindowsInput.exe" --install
        3⤵
        • Executes dropped EXE
        • Drops file in System32 directory
        PID:4556
      • C:\Users\Admin\AppData\Local\Temp\Windows Updater\updateclient.exe
        "C:\Users\Admin\AppData\Local\Temp\Windows Updater\updateclient.exe"
        3⤵
        • Checks computer location settings
        • Executes dropped EXE
        • Adds Run key to start application
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:1752
        • C:\Program Files\7-Zip\Uninstall.exe
          "C:\Program Files\7-Zip\Uninstall.exe"
          4⤵
          • Suspicious use of WriteProcessMemory
          PID:4772
          • C:\Users\Admin\AppData\Local\Temp\7z3EDE02A4\Uninst.exe
            C:\Users\Admin\AppData\Local\Temp\7z3EDE02A4\Uninst.exe /N /D="C:\Program Files\7-Zip\"
            5⤵
            • Executes dropped EXE
            PID:3568
        • C:\Windows\SYSTEM32\cmd.exe
          "cmd.exe"
          4⤵
          • Suspicious use of WriteProcessMemory
          PID:2036
          • C:\Windows\system32\ipconfig.exe
            ipconfig
            5⤵
            • Gathers network information
            PID:3544
          • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
            powershell
            5⤵
            • Suspicious use of WriteProcessMemory
            PID:1808
            • C:\Windows\system32\more.com
              "C:\Windows\system32\more.com"
              6⤵
                PID:4700
      • 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:2032
    • C:\Windows\SysWOW64\WindowsInput.exe
      "C:\Windows\SysWOW64\WindowsInput.exe"
      1⤵
      • Executes dropped EXE
      PID:2288
    • 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:3616
    • 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:5020
    • 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:1368
    • C:\Windows\system32\wbem\WmiApSrv.exe
      C:\Windows\system32\wbem\WmiApSrv.exe
      1⤵
        PID:3124
      • 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:3764

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

      Loading Replay Monitor...

      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\7z3EDE02A4\Uninst.exe

        Filesize

        14KB

        MD5

        ad782ffac62e14e2269bf1379bccbaae

        SHA1

        9539773b550e902a35764574a2be2d05bc0d8afc

        SHA256

        1c8a77db924ebeb952052334dc95add388700c02b073b07973cd8fe0a0a360b8

        SHA512

        a1e9d6316ffc55f4751090961733e98c93b2a391666ff50b50e9dea39783746e501d14127e7ee9343926976d7e3cd224f13736530354d8466ea995dab35c8dc2

      • 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_gxfnkhbp.ptu.ps1

        Filesize

        60B

        MD5

        d17fe0a3f47be24a6453e9ef58c94641

        SHA1

        6ab83620379fc69f80c0242105ddffd7d98d5d9d

        SHA256

        96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

        SHA512

        5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

      • 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/1368-113-0x00007FFF47730000-0x00007FFF481F1000-memory.dmp

        Filesize

        10.8MB

      • memory/1368-114-0x00007FFF47730000-0x00007FFF481F1000-memory.dmp

        Filesize

        10.8MB

      • memory/1752-84-0x000000001B7C0000-0x000000001B7D0000-memory.dmp

        Filesize

        64KB

      • memory/1752-83-0x00007FFF47730000-0x00007FFF481F1000-memory.dmp

        Filesize

        10.8MB

      • memory/1752-101-0x000000001CA10000-0x000000001CBD2000-memory.dmp

        Filesize

        1.8MB

      • memory/1752-120-0x000000001BA70000-0x000000001BAC0000-memory.dmp

        Filesize

        320KB

      • memory/1752-102-0x00007FFF47730000-0x00007FFF481F1000-memory.dmp

        Filesize

        10.8MB

      • memory/1752-89-0x000000001B7A0000-0x000000001B7B0000-memory.dmp

        Filesize

        64KB

      • memory/1752-104-0x000000001B7C0000-0x000000001B7D0000-memory.dmp

        Filesize

        64KB

      • memory/1752-86-0x000000001B770000-0x000000001B788000-memory.dmp

        Filesize

        96KB

      • memory/1752-85-0x000000001B700000-0x000000001B74E000-memory.dmp

        Filesize

        312KB

      • memory/1808-139-0x000002B93C4D0000-0x000002B93C61E000-memory.dmp

        Filesize

        1.3MB

      • memory/1808-127-0x000002B93C390000-0x000002B93C3B2000-memory.dmp

        Filesize

        136KB

      • memory/1808-142-0x000002B93C4D0000-0x000002B93C61E000-memory.dmp

        Filesize

        1.3MB

      • memory/1808-143-0x00007FFF47730000-0x00007FFF481F1000-memory.dmp

        Filesize

        10.8MB

      • memory/1808-126-0x00007FFF47730000-0x00007FFF481F1000-memory.dmp

        Filesize

        10.8MB

      • memory/1808-137-0x000002B93CA10000-0x000002B93CA54000-memory.dmp

        Filesize

        272KB

      • memory/1808-141-0x000002B923D30000-0x000002B923D40000-memory.dmp

        Filesize

        64KB

      • memory/1808-138-0x000002B93CAE0000-0x000002B93CB56000-memory.dmp

        Filesize

        472KB

      • memory/2032-106-0x0000000000AF0000-0x0000000000B00000-memory.dmp

        Filesize

        64KB

      • memory/2032-93-0x0000000000AF0000-0x0000000000B00000-memory.dmp

        Filesize

        64KB

      • memory/2032-105-0x0000000000AF0000-0x0000000000B00000-memory.dmp

        Filesize

        64KB

      • memory/2032-99-0x0000000000AF0000-0x0000000000B00000-memory.dmp

        Filesize

        64KB

      • memory/2032-56-0x000000001D6D0000-0x000000001D70C000-memory.dmp

        Filesize

        240KB

      • memory/2032-62-0x0000000000AF0000-0x0000000000B00000-memory.dmp

        Filesize

        64KB

      • memory/2032-38-0x0000000000AF0000-0x0000000000B00000-memory.dmp

        Filesize

        64KB

      • memory/2032-37-0x00007FFF47730000-0x00007FFF481F1000-memory.dmp

        Filesize

        10.8MB

      • memory/2032-33-0x0000000000150000-0x0000000000336000-memory.dmp

        Filesize

        1.9MB

      • memory/2032-90-0x00007FFF47730000-0x00007FFF481F1000-memory.dmp

        Filesize

        10.8MB

      • memory/2032-107-0x0000000000AF0000-0x0000000000B00000-memory.dmp

        Filesize

        64KB

      • memory/2032-92-0x0000000000AF0000-0x0000000000B00000-memory.dmp

        Filesize

        64KB

      • memory/2288-100-0x00007FFF47730000-0x00007FFF481F1000-memory.dmp

        Filesize

        10.8MB

      • memory/2288-103-0x00000000013D0000-0x00000000013E0000-memory.dmp

        Filesize

        64KB

      • memory/2288-65-0x000000001A410000-0x000000001A51A000-memory.dmp

        Filesize

        1.0MB

      • memory/2288-64-0x00007FFF47730000-0x00007FFF481F1000-memory.dmp

        Filesize

        10.8MB

      • memory/2428-39-0x00000000024D0000-0x00000000024E2000-memory.dmp

        Filesize

        72KB

      • memory/2428-35-0x000000001AEA0000-0x000000001AEB0000-memory.dmp

        Filesize

        64KB

      • memory/2428-30-0x00000000001E0000-0x00000000002CC000-memory.dmp

        Filesize

        944KB

      • memory/2428-34-0x0000000000C40000-0x0000000000C9C000-memory.dmp

        Filesize

        368KB

      • memory/2428-40-0x00000000024C0000-0x00000000024C8000-memory.dmp

        Filesize

        32KB

      • memory/2428-82-0x00007FFF47730000-0x00007FFF481F1000-memory.dmp

        Filesize

        10.8MB

      • memory/2428-31-0x00007FFF47730000-0x00007FFF481F1000-memory.dmp

        Filesize

        10.8MB

      • memory/2428-36-0x0000000000960000-0x000000000096E000-memory.dmp

        Filesize

        56KB

      • memory/3616-98-0x00007FFF47730000-0x00007FFF481F1000-memory.dmp

        Filesize

        10.8MB

      • memory/3616-88-0x00007FFF47730000-0x00007FFF481F1000-memory.dmp

        Filesize

        10.8MB

      • memory/3616-91-0x000000001B4E0000-0x000000001B4F0000-memory.dmp

        Filesize

        64KB

      • memory/3764-125-0x00007FFF47730000-0x00007FFF481F1000-memory.dmp

        Filesize

        10.8MB

      • memory/3764-124-0x000000001B790000-0x000000001B7A0000-memory.dmp

        Filesize

        64KB

      • memory/3764-123-0x00007FFF47730000-0x00007FFF481F1000-memory.dmp

        Filesize

        10.8MB

      • memory/4468-32-0x00007FFF4AD00000-0x00007FFF4B6A1000-memory.dmp

        Filesize

        9.6MB

      • memory/4468-1-0x00007FFF4AD00000-0x00007FFF4B6A1000-memory.dmp

        Filesize

        9.6MB

      • memory/4468-5-0x00000000016B0000-0x00000000016C0000-memory.dmp

        Filesize

        64KB

      • memory/4468-4-0x000000001BCE0000-0x000000001BD42000-memory.dmp

        Filesize

        392KB

      • memory/4468-3-0x00007FFF4AD00000-0x00007FFF4B6A1000-memory.dmp

        Filesize

        9.6MB

      • memory/4468-2-0x00000000016B0000-0x00000000016C0000-memory.dmp

        Filesize

        64KB

      • memory/4468-0-0x000000001BC30000-0x000000001BCD6000-memory.dmp

        Filesize

        664KB

      • memory/4556-54-0x00000000000B0000-0x00000000000BC000-memory.dmp

        Filesize

        48KB

      • memory/4556-55-0x0000000002040000-0x0000000002052000-memory.dmp

        Filesize

        72KB

      • memory/4556-58-0x00007FFF47730000-0x00007FFF481F1000-memory.dmp

        Filesize

        10.8MB

      • memory/4556-97-0x00007FFF47730000-0x00007FFF481F1000-memory.dmp

        Filesize

        10.8MB

      • memory/5020-111-0x00007FFF47730000-0x00007FFF481F1000-memory.dmp

        Filesize

        10.8MB

      • memory/5020-110-0x00007FFF47730000-0x00007FFF481F1000-memory.dmp

        Filesize

        10.8MB