Analysis

  • max time kernel
    149s
  • max time network
    151s
  • platform
    windows10-1703_x64
  • resource
    win10-20240404-en
  • resource tags

    arch:x64arch:x86image:win10-20240404-enlocale:en-usos:windows10-1703-x64system
  • submitted
    07-06-2024 16:04

General

  • Target

    SKlauncher-3.2.exe

  • Size

    1.6MB

  • MD5

    b63468dd118dfbca5ef7967ba344e0e3

  • SHA1

    2ba4f0df5f3bd284bf2a89aba320e4440d8b8355

  • SHA256

    05ae2f0dd61ef10019b94c200e8df192b767bb4cc24a7e7b329ab43cc9c74caf

  • SHA512

    007ecb7445dc0c01a802b5a2c91313aae59f9dc96e27455dd85e7a92a4e649d683fbc2ada5f48925d9ab3b4fdaea20aa89eeb442fde079902aecb5ca3454a548

  • SSDEEP

    49152:HIBc3n9dRvwVlzhFAQ/ggUTPQjYEiim7V:oBaO/FAqMQjYEXm

Malware Config

Signatures

  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Loads dropped DLL 1 IoCs
  • Modifies file permissions 1 TTPs 1 IoCs
  • Detected potential entity reuse from brand microsoft.
  • Drops file in Windows directory 4 IoCs
  • Modifies Internet Explorer settings 1 TTPs 2 IoCs
  • Modifies registry class 64 IoCs
  • Suspicious behavior: MapViewOfSection 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 8 IoCs
  • Suspicious use of SetWindowsHookEx 7 IoCs
  • Suspicious use of WriteProcessMemory 27 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\SKlauncher-3.2.exe
    "C:\Users\Admin\AppData\Local\Temp\SKlauncher-3.2.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:3652
    • \??\c:\PROGRA~1\java\jre-1.8\bin\java.exe
      "c:\PROGRA~1\java\jre-1.8\bin\java.exe" -version
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2568
      • C:\Windows\system32\icacls.exe
        C:\Windows\system32\icacls.exe C:\ProgramData\Oracle\Java\.oracle_jre_usage /grant "everyone":(OI)(CI)M
        3⤵
        • Modifies file permissions
        PID:4600
    • \??\c:\PROGRA~1\java\jdk-1.8\jre\bin\java.exe
      "c:\PROGRA~1\java\jdk-1.8\jre\bin\java.exe" -version
      2⤵
        PID:800
      • C:\Windows\SYSTEM32\reg.exe
        reg query "HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Themes\Personalize" /v AppsUseLightTheme
        2⤵
          PID:4872
        • C:\Windows\SYSTEM32\rundll32.exe
          rundll32.exe url.dll,FileProtocolHandler https://login.microsoftonline.com/consumers/oauth2/v2.0/authorize?scope=XboxLive.signin%20offline_access&response_type=code&redirect_uri=http://localhost:26669/relogin&prompt=select_account&client_id=907a248d-3eb5-4d01-99d2-ff72d79c5eb1
          2⤵
          • Checks computer location settings
          PID:2440
      • C:\Windows\SystemApps\Microsoft.MicrosoftEdge_8wekyb3d8bbwe\MicrosoftEdge.exe
        "C:\Windows\SystemApps\Microsoft.MicrosoftEdge_8wekyb3d8bbwe\MicrosoftEdge.exe" -ServerName:MicrosoftEdge.AppXdnhjhccw3zf0j06tkg3jtqr00qdm0khc.mca
        1⤵
        • Drops file in Windows directory
        • Modifies registry class
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of SetWindowsHookEx
        PID:2156
      • C:\Windows\system32\browser_broker.exe
        C:\Windows\system32\browser_broker.exe -Embedding
        1⤵
        • Modifies Internet Explorer settings
        PID:1448
      • C:\Windows\SystemApps\Microsoft.MicrosoftEdge_8wekyb3d8bbwe\MicrosoftEdgeCP.exe
        "C:\Windows\SystemApps\Microsoft.MicrosoftEdge_8wekyb3d8bbwe\MicrosoftEdgeCP.exe" -ServerName:ContentProcess.AppX6z3cwk4fvgady6zya12j1cw28d228a7k.mca
        1⤵
        • Modifies registry class
        • Suspicious behavior: MapViewOfSection
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:2348
      • C:\Windows\SystemApps\Microsoft.MicrosoftEdge_8wekyb3d8bbwe\MicrosoftEdgeCP.exe
        "C:\Windows\SystemApps\Microsoft.MicrosoftEdge_8wekyb3d8bbwe\MicrosoftEdgeCP.exe" -ServerName:ContentProcess.AppX6z3cwk4fvgady6zya12j1cw28d228a7k.mca
        1⤵
        • Drops file in Windows directory
        • Modifies Internet Explorer settings
        • Modifies registry class
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of SetWindowsHookEx
        PID:2172
      • C:\Windows\SystemApps\Microsoft.MicrosoftEdge_8wekyb3d8bbwe\MicrosoftEdgeCP.exe
        "C:\Windows\SystemApps\Microsoft.MicrosoftEdge_8wekyb3d8bbwe\MicrosoftEdgeCP.exe" -ServerName:ContentProcess.AppX6z3cwk4fvgady6zya12j1cw28d228a7k.mca
        1⤵
        • Drops file in Windows directory
        • Modifies registry class
        PID:3164
      • C:\Windows\SystemApps\Microsoft.MicrosoftEdge_8wekyb3d8bbwe\MicrosoftEdgeCP.exe
        "C:\Windows\SystemApps\Microsoft.MicrosoftEdge_8wekyb3d8bbwe\MicrosoftEdgeCP.exe" -ServerName:ContentProcess.AppX6z3cwk4fvgady6zya12j1cw28d228a7k.mca
        1⤵
        • Modifies registry class
        • Suspicious use of AdjustPrivilegeToken
        PID:4492

      Network

      MITRE ATT&CK Matrix ATT&CK v13

      Defense Evasion

      File and Directory Permissions Modification

      1
      T1222

      Modify Registry

      1
      T1112

      Discovery

      Query Registry

      1
      T1012

      System Information Discovery

      1
      T1082

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • C:\ProgramData\Oracle\Java\.oracle_jre_usage\3903daac9bc4a3b7.timestamp
        Filesize

        46B

        MD5

        8f25a71c23fca1b52e2e2e9563a4e2bc

        SHA1

        3a5192ec4810eb8d70b09521c13c22d05354451a

        SHA256

        907d00a9c860835409066ff470059508157dbfdfaf96e04ba5bd37b76ea3cc87

        SHA512

        d08cdddc0e07b70cac4877c31ea450e031bc3c6635de1d8463da387e4f880faad1ddd52a23623c7d32d18f27bff31ca30bb8ad31af6a351a77f5b04a0a0b5984

      • C:\Users\Admin\AppData\Local\Packages\Microsoft.MicrosoftEdge_8wekyb3d8bbwe\AC\#!001\MicrosoftEdge\User\Default\DOMStore\V7MQC9R0\login.live[1].xml
        Filesize

        13B

        MD5

        c1ddea3ef6bbef3e7060a1a9ad89e4c5

        SHA1

        35e3224fcbd3e1af306f2b6a2c6bbea9b0867966

        SHA256

        b71e4d17274636b97179ba2d97c742735b6510eb54f22893d3a2daff2ceb28db

        SHA512

        6be8cec7c862afae5b37aa32dc5bb45912881a3276606da41bf808a4ef92c318b355e616bf45a257b995520d72b7c08752c0be445dceade5cf79f73480910fed

      • C:\Users\Admin\AppData\Local\Packages\Microsoft.MicrosoftEdge_8wekyb3d8bbwe\AC\MicrosoftEdge\Cache\5Q5T7Z0E\favicon[1].ico
        Filesize

        16KB

        MD5

        12e3dac858061d088023b2bd48e2fa96

        SHA1

        e08ce1a144eceae0c3c2ea7a9d6fbc5658f24ce5

        SHA256

        90cdaf487716184e4034000935c605d1633926d348116d198f355a98b8c6cd21

        SHA512

        c5030c55a855e7a9e20e22f4c70bf1e0f3c558a9b7d501cfab6992ac2656ae5e41b050ccac541efa55f9603e0d349b247eb4912ee169d44044271789c719cd01

      • C:\Users\Admin\AppData\Local\Packages\Microsoft.MicrosoftEdge_8wekyb3d8bbwe\AC\MicrosoftEdge\User\Default\ImageStore\7pjcu16\imagestore.dat
        Filesize

        26KB

        MD5

        26935e2d7b84185b8b1a0958084300ce

        SHA1

        18dad998754c8b57601c32882154f4912c886128

        SHA256

        3396374c7d017cc5587ea9c7c7110883bae011b5a693fe5ca27f9406fcb9def5

        SHA512

        a4f2d76c7cf02785aa61832d12fabe3376a251c9ef369ef3c55f2f788a18b9abb7707962fbe18fb1e8c3f0b12e69fc7ba3dc0122b7031af488bc4ce9701c3977

      • C:\Users\Admin\AppData\Local\Packages\Microsoft.MicrosoftEdge_8wekyb3d8bbwe\AC\Temp\~DF5060ED032687044D.TMP
        Filesize

        20KB

        MD5

        f8a123c7389c65954b9e53682e91ea8d

        SHA1

        e196ec628df7d5132226d855e519396448cf0b23

        SHA256

        2d5e188b0fc917634193f7c4a9945e48a3cb1ebcfe29002c53d3eb42e34ca912

        SHA512

        e05445579e94d525d2f15f9ef129d8c8f7955eaee6f45249a11fe4f00a850a08b9d7f87aa0b96b9d5677103102d1624f0fd8d6faf450c81e3c12cfba4302db90

      • C:\Users\Admin\AppData\Local\Temp\+JXF2135438270896616684.tmp
        Filesize

        405KB

        MD5

        8f2869a84ad71f156a17bb66611ebe22

        SHA1

        0325b9b3992fa2fdc9c715730a33135696c68a39

        SHA256

        0cb1bc1335372d9e3a0cf6f5311c7cce87af90d2a777fdeec18be605a2a70bc1

        SHA512

        3d4315d591dcf7609c15b3e32bcc234659fcdbe4be24aef5dba4ad248ad42fd9ab082250244f99dc801ec21575b7400aace50a1e8834d5c33404e76a0caac834

      • C:\Users\Admin\AppData\Local\Temp\+JXF2196687816913011078.tmp
        Filesize

        398KB

        MD5

        ff5fdc6f42c720a3ebd7b60f6d605888

        SHA1

        460c18ddf24846e3d8792d440fd9a750503aef1b

        SHA256

        1936d24cb0f4ce7006e08c6ef4243d2e42a7b45f2249f8fe54d92f76a317dfd1

        SHA512

        d3d333b1627d597c83a321a3daca38df63ea0f7cab716006935905b8170379ec2aab26cb7ffc7b539ca272cf7fb7937198aee6db3411077bedf3d2b920d078a3

      • C:\Users\Admin\AppData\Local\Temp\+JXF4136294583969107988.tmp
        Filesize

        397KB

        MD5

        fdb50e0d48cdcf775fa1ac0dc3c33bd4

        SHA1

        5c95e5d66572aeca303512ba41a8dde0cea92c80

        SHA256

        64f8be6e55c37e32ef03da99714bf3aa58b8f2099bfe4f759a7578e3b8291123

        SHA512

        20ce8100c96058d4e64a12d0817b7ce638cec9f5d03651320eb6b9c3f47ee289ccc695bd3b5b6bf8e0867cdab0ebb6e8cae77df054e185828a6a13f3733ede53

      • C:\Users\Admin\AppData\Local\Temp\e4j5748.tmp_dir1717776270\SKlauncher-3.2.jar
        Filesize

        1.1MB

        MD5

        4d653e61ba01a521c56b9a70a9c9814e

        SHA1

        de855dc3dbc914b497b58da92e0c21fff660796d

        SHA256

        f7d3e01dcfc001cc80a988c518d4358955842d140054214d1367972c5c543350

        SHA512

        e6a7db6e2893b5b01dd0c84a230d88abf50da63ceb1af5754a2c4c1fbd307a799a74f3f368430d3beb33590cda2e0a3cf509fef11c4477b76e8d3c4a582b5def

      • C:\Users\Admin\AppData\Roaming\.minecraft\sklauncher-fx.jar
        Filesize

        14.1MB

        MD5

        9b59fa715db2f9f8f6ed9e14f3768ed3

        SHA1

        9d46c5898c653fb1785e399b74f26633107d0bde

        SHA256

        fab6dede2f59dc4b7b6be032fbce1209a93aca02b7d6c126e3f1584148230146

        SHA512

        e9e84b056e0f1d8be544194a275ca61b5e6820dbbd701dec5aa75b804705ab33cb826314c0f6edd527cffa84de80062c559f9fb49c53b5bbfda9481bd138be5f

      • \Users\Admin\AppData\Local\Temp\flatlaf.temp\flatlaf-windows-x86_64-4611447509400.dll
        Filesize

        22KB

        MD5

        dcd68a87b7e6edbcfde48150403b22eb

        SHA1

        28e4839a29725075772fccc39b44e194eb91e477

        SHA256

        ae3352b6ad6cffaae55f4387f9f5e79365ea17f8d5fb45ef11d21c3300a49a4c

        SHA512

        ac2a6bc0afcd08c56090536a937772edd54f35505c9a5837d9bc8e91c31edb6137cf5191986b3473e9e2f512950b4dbfe4088598bfd1faf47088124c70aeba71

      • memory/800-20-0x000002A8553E0000-0x000002A855650000-memory.dmp
        Filesize

        2.4MB

      • memory/800-30-0x000002A853B30000-0x000002A853B31000-memory.dmp
        Filesize

        4KB

      • memory/800-31-0x000002A8553E0000-0x000002A855650000-memory.dmp
        Filesize

        2.4MB

      • memory/2568-5-0x0000015A12F30000-0x0000015A131A0000-memory.dmp
        Filesize

        2.4MB

      • memory/2568-17-0x0000015A12F30000-0x0000015A131A0000-memory.dmp
        Filesize

        2.4MB

      • memory/2568-15-0x0000015A116B0000-0x0000015A116B1000-memory.dmp
        Filesize

        4KB

      • memory/3652-305-0x0000000002370000-0x0000000002371000-memory.dmp
        Filesize

        4KB

      • memory/3652-313-0x0000000002370000-0x0000000002371000-memory.dmp
        Filesize

        4KB

      • memory/3652-218-0x0000000002370000-0x0000000002371000-memory.dmp
        Filesize

        4KB

      • memory/3652-223-0x0000000002370000-0x0000000002371000-memory.dmp
        Filesize

        4KB

      • memory/3652-236-0x0000000002370000-0x0000000002371000-memory.dmp
        Filesize

        4KB

      • memory/3652-238-0x0000000002370000-0x0000000002371000-memory.dmp
        Filesize

        4KB

      • memory/3652-242-0x0000000002370000-0x0000000002371000-memory.dmp
        Filesize

        4KB

      • memory/3652-48-0x0000000002370000-0x0000000002371000-memory.dmp
        Filesize

        4KB

      • memory/3652-164-0x0000000002370000-0x0000000002371000-memory.dmp
        Filesize

        4KB

      • memory/3652-189-0x0000000002370000-0x0000000002371000-memory.dmp
        Filesize

        4KB

      • memory/3652-310-0x0000000002370000-0x0000000002371000-memory.dmp
        Filesize

        4KB

      • memory/3652-162-0x0000000002370000-0x0000000002371000-memory.dmp
        Filesize

        4KB

      • memory/3652-44-0x0000000002370000-0x0000000002371000-memory.dmp
        Filesize

        4KB

      • memory/3652-161-0x0000000002370000-0x0000000002371000-memory.dmp
        Filesize

        4KB

      • memory/3652-135-0x0000000002370000-0x0000000002371000-memory.dmp
        Filesize

        4KB

      • memory/3652-125-0x0000000002370000-0x0000000002371000-memory.dmp
        Filesize

        4KB

      • memory/3652-179-0x0000000002370000-0x0000000002371000-memory.dmp
        Filesize

        4KB

      • memory/3652-119-0x0000000002370000-0x0000000002371000-memory.dmp
        Filesize

        4KB