Analysis

  • max time kernel
    138s
  • 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
    29-06-2024 22:12

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 6 IoCs
  • Suspicious use of SetWindowsHookEx 7 IoCs
  • Suspicious use of WriteProcessMemory 23 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:3320
    • \??\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:3288
      • 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:3160
    • \??\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:524
      • C:\Windows\SYSTEM32\reg.exe
        reg query "HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Themes\Personalize" /v AppsUseLightTheme
        2⤵
          PID:3416
        • 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:1984
      • 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:2072
      • C:\Windows\system32\browser_broker.exe
        C:\Windows\system32\browser_broker.exe -Embedding
        1⤵
        • Modifies Internet Explorer settings
        PID:4740
      • 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:5056
      • 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:1836
      • 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:1888

      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

        658677dbf61a7bf102a649163004525d

        SHA1

        603961c432faecd29741034eb1601280da113f9d

        SHA256

        60adb8c6db9106c722b2ba63ea4a8f62b045beea3a289e32c9db1f5285a34537

        SHA512

        470a69fec20965dc450b884f86fef53f306bcdc632ae706bfd7eb1a55c0520bb23ca2e994f0f6e9690bb5bc275cab27803140487a4d057e606cafc0f20daac90

      • C:\Users\Admin\AppData\Local\Packages\Microsoft.MicrosoftEdge_8wekyb3d8bbwe\AC\MicrosoftEdge\Cache\DO1Z1BGH\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\41bap0o\imagestore.dat
        Filesize

        26KB

        MD5

        1e7154905a607b45815d7ee905ad3ab3

        SHA1

        48fa0c99a81c88f7d3a267334cdff2fc5c1282cc

        SHA256

        af359d8debf2fe4d966f4fcdd01adcf240cdb9a12caa9a943426ff3102e9535b

        SHA512

        e5ce99ae3c234a8952551babb9c27cc56b4bdcce66cdfeedf715ddea5e03689bcadc42eadfc1d70fdf4f7f585cc0a94ab9606097f924d242821c9f5b26495098

      • C:\Users\Admin\AppData\Local\Packages\Microsoft.MicrosoftEdge_8wekyb3d8bbwe\AC\Temp\~DFEA29B92D8E1F5773.TMP
        Filesize

        16KB

        MD5

        eebd2d36ca9c74c23923503df11362a2

        SHA1

        f779090ea30833174e306688643111173ec8f5b2

        SHA256

        57c13ae5f976f61e60f31048a8df3d7870cc7456519df0d87420edfdf4b9424e

        SHA512

        570417e0a08b55699752cc48b8604eebad25576dd24676240c1c8c3c6d97e48d80f311f7c84e47319644fd38418374bb392a75b4fabe4768fc79356a7b680539

      • C:\Users\Admin\AppData\Local\Temp\+JXF1780223640383664807.tmp
        Filesize

        397KB

        MD5

        fdb50e0d48cdcf775fa1ac0dc3c33bd4

        SHA1

        5c95e5d66572aeca303512ba41a8dde0cea92c80

        SHA256

        64f8be6e55c37e32ef03da99714bf3aa58b8f2099bfe4f759a7578e3b8291123

        SHA512

        20ce8100c96058d4e64a12d0817b7ce638cec9f5d03651320eb6b9c3f47ee289ccc695bd3b5b6bf8e0867cdab0ebb6e8cae77df054e185828a6a13f3733ede53

      • C:\Users\Admin\AppData\Local\Temp\+JXF6633857601095697073.tmp
        Filesize

        405KB

        MD5

        8f2869a84ad71f156a17bb66611ebe22

        SHA1

        0325b9b3992fa2fdc9c715730a33135696c68a39

        SHA256

        0cb1bc1335372d9e3a0cf6f5311c7cce87af90d2a777fdeec18be605a2a70bc1

        SHA512

        3d4315d591dcf7609c15b3e32bcc234659fcdbe4be24aef5dba4ad248ad42fd9ab082250244f99dc801ec21575b7400aace50a1e8834d5c33404e76a0caac834

      • C:\Users\Admin\AppData\Local\Temp\+JXF6907173283393426847.tmp
        Filesize

        398KB

        MD5

        ff5fdc6f42c720a3ebd7b60f6d605888

        SHA1

        460c18ddf24846e3d8792d440fd9a750503aef1b

        SHA256

        1936d24cb0f4ce7006e08c6ef4243d2e42a7b45f2249f8fe54d92f76a317dfd1

        SHA512

        d3d333b1627d597c83a321a3daca38df63ea0f7cab716006935905b8170379ec2aab26cb7ffc7b539ca272cf7fb7937198aee6db3411077bedf3d2b920d078a3

      • C:\Users\Admin\AppData\Local\Temp\e4j6179.tmp_dir1719699150\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

        7e3ed7694833d8cfb47a47cfc9d4205c

        SHA1

        7d3699db91e0569903bd902b54acc8d2f373e02a

        SHA256

        99dd19398f87d030fa39c56ca0a5a0284db37128d1623bd1edb0de66f9861290

        SHA512

        ceeef6d0194438af9ff4256305204ab43bb3d50db372716bca8754dc91fdcfe15109d900fb41da20b53853b16a088c5f2a26d54331b8744d3886ab1939883460

      • \Users\Admin\AppData\Local\Temp\flatlaf.temp\flatlaf-windows-x86_64-4638176986600.dll
        Filesize

        22KB

        MD5

        dcd68a87b7e6edbcfde48150403b22eb

        SHA1

        28e4839a29725075772fccc39b44e194eb91e477

        SHA256

        ae3352b6ad6cffaae55f4387f9f5e79365ea17f8d5fb45ef11d21c3300a49a4c

        SHA512

        ac2a6bc0afcd08c56090536a937772edd54f35505c9a5837d9bc8e91c31edb6137cf5191986b3473e9e2f512950b4dbfe4088598bfd1faf47088124c70aeba71

      • memory/524-31-0x0000025E476F0000-0x0000025E47960000-memory.dmp
        Filesize

        2.4MB

      • memory/524-30-0x0000025E45F00000-0x0000025E45F01000-memory.dmp
        Filesize

        4KB

      • memory/524-20-0x0000025E476F0000-0x0000025E47960000-memory.dmp
        Filesize

        2.4MB

      • memory/3288-17-0x000001E700000000-0x000001E700270000-memory.dmp
        Filesize

        2.4MB

      • memory/3288-15-0x000001E77B9C0000-0x000001E77B9C1000-memory.dmp
        Filesize

        4KB

      • memory/3288-5-0x000001E700000000-0x000001E700270000-memory.dmp
        Filesize

        2.4MB

      • memory/3320-173-0x0000000000D70000-0x0000000000D71000-memory.dmp
        Filesize

        4KB

      • memory/3320-220-0x0000000000D70000-0x0000000000D71000-memory.dmp
        Filesize

        4KB

      • memory/3320-219-0x0000000000D70000-0x0000000000D71000-memory.dmp
        Filesize

        4KB

      • memory/3320-212-0x0000000000D70000-0x0000000000D71000-memory.dmp
        Filesize

        4KB

      • memory/3320-285-0x0000000000D70000-0x0000000000D71000-memory.dmp
        Filesize

        4KB

      • memory/3320-288-0x0000000000D70000-0x0000000000D71000-memory.dmp
        Filesize

        4KB

      • memory/3320-286-0x0000000000D70000-0x0000000000D71000-memory.dmp
        Filesize

        4KB

      • memory/3320-297-0x0000000000D70000-0x0000000000D71000-memory.dmp
        Filesize

        4KB

      • memory/3320-293-0x0000000000D70000-0x0000000000D71000-memory.dmp
        Filesize

        4KB

      • memory/3320-211-0x0000000000D70000-0x0000000000D71000-memory.dmp
        Filesize

        4KB

      • memory/3320-134-0x0000000000D70000-0x0000000000D71000-memory.dmp
        Filesize

        4KB

      • memory/3320-121-0x0000000000D70000-0x0000000000D71000-memory.dmp
        Filesize

        4KB

      • memory/3320-82-0x0000000000D70000-0x0000000000D71000-memory.dmp
        Filesize

        4KB

      • memory/3320-48-0x0000000000D70000-0x0000000000D71000-memory.dmp
        Filesize

        4KB

      • memory/3320-44-0x0000000000D70000-0x0000000000D71000-memory.dmp
        Filesize

        4KB