Resubmissions

24/06/2024, 16:32

240624-t2d74avfpj7

24/06/2024, 16:31

240624-t1p8zasakb4

Analysis

  • max time kernel
    84s
  • max time network
    73s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240611-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240611-enlocale:en-usos:windows10-2004-x64system
  • submitted
    24/06/2024, 16:32

General

  • Target
    SKlauncher-3.2.exe
  • Size 1.6MB
  • Sample240624-t2d74avfpj
  • SHA256 05ae2f0dd61ef10019b94c200e8df192b767bb4cc24a7e7b329ab43cc9c74caf
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Signatures

  • Loads dropped DLL 1 IoCs
  • Modifies file permissions 1 TTPs 1 IoCs
  • Detected potential entity reuse from brand microsoft.
  • Enumerates physical storage devices 1 TTPs

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

  • Enumerates system info in registry 2 TTPs 3 IoCs
  • Suspicious behavior: EnumeratesProcesses 6 IoCs
  • Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary 7 IoCs
  • Suspicious use of FindShellTrayWindow 25 IoCs
  • Suspicious use of SendNotifyMessage 24 IoCs
  • Suspicious use of SetWindowsHookEx 3 IoCs
  • Suspicious use of WriteProcessMemory 64 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:3768
    • \??\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:3952
      • 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:3712
    • \??\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:1576
      • C:\Windows\SYSTEM32\reg.exe
        reg query "HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Themes\Personalize" /v AppsUseLightTheme
        2⤵
          PID:904
        • 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⤵
          • Suspicious use of WriteProcessMemory
          PID:3304
          • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
            "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --single-argument 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
            3⤵
            • Enumerates system info in registry
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary
            • Suspicious use of FindShellTrayWindow
            • Suspicious use of SendNotifyMessage
            • Suspicious use of WriteProcessMemory
            PID:3872
            • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
              "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=crashpad-handler "--user-data-dir=C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data" /prefetch:7 --monitor-self-annotation=ptype=crashpad-handler "--database=C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Crashpad" "--metrics-dir=C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data" --annotation=IsOfficialBuild=1 --annotation=channel= --annotation=chromium-version=92.0.4515.131 "--annotation=exe=C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --annotation=plat=Win64 "--annotation=prod=Microsoft Edge" --annotation=ver=92.0.902.67 --initial-client-data=0xfc,0x100,0x104,0xd8,0x108,0x7ffa49a346f8,0x7ffa49a34708,0x7ffa49a34718
              4⤵
                PID:3004
              • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=gpu-process --field-trial-handle=2080,12950600486647670716,7624651067912604859,131072 --gpu-preferences=UAAAAAAAAADgAAAQAAAAAAAAAAAAAAAAAABgAAAAAAAwAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAHgAAAAAAAAAeAAAAAAAAAAoAAAABAAAACAAAAAAAAAAKAAAAAAAAAAwAAAAAAAAADgAAAAAAAAAEAAAAAAAAAAAAAAADQAAABAAAAAAAAAAAQAAAA0AAAAQAAAAAAAAAAQAAAANAAAAEAAAAAAAAAAHAAAADQAAAAgAAAAAAAAACAAAAAAAAAA= --mojo-platform-channel-handle=2096 /prefetch:2
                4⤵
                  PID:2248
                • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=network.mojom.NetworkService --field-trial-handle=2080,12950600486647670716,7624651067912604859,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=2140 /prefetch:3
                  4⤵
                  • Suspicious behavior: EnumeratesProcesses
                  PID:4400
                • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=storage.mojom.StorageService --field-trial-handle=2080,12950600486647670716,7624651067912604859,131072 --lang=en-US --service-sandbox-type=utility --mojo-platform-channel-handle=2716 /prefetch:8
                  4⤵
                    PID:1640
                  • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2080,12950600486647670716,7624651067912604859,131072 --lang=en-US --disable-client-side-phishing-detection --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=6 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=3368 /prefetch:1
                    4⤵
                      PID:5020
                    • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                      "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2080,12950600486647670716,7624651067912604859,131072 --lang=en-US --disable-client-side-phishing-detection --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=5 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=3380 /prefetch:1
                      4⤵
                        PID:2284
                      • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                        "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2080,12950600486647670716,7624651067912604859,131072 --lang=en-US --disable-client-side-phishing-detection --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=7 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=4940 /prefetch:1
                        4⤵
                          PID:3108
                        • C:\Program Files (x86)\Microsoft\Edge\Application\92.0.902.67\identity_helper.exe
                          "C:\Program Files (x86)\Microsoft\Edge\Application\92.0.902.67\identity_helper.exe" --type=utility --utility-sub-type=winrt_app_id.mojom.WinrtAppIdService --field-trial-handle=2080,12950600486647670716,7624651067912604859,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=5172 /prefetch:8
                          4⤵
                            PID:3312
                          • C:\Program Files (x86)\Microsoft\Edge\Application\92.0.902.67\identity_helper.exe
                            "C:\Program Files (x86)\Microsoft\Edge\Application\92.0.902.67\identity_helper.exe" --type=utility --utility-sub-type=winrt_app_id.mojom.WinrtAppIdService --field-trial-handle=2080,12950600486647670716,7624651067912604859,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=5172 /prefetch:8
                            4⤵
                            • Suspicious behavior: EnumeratesProcesses
                            PID:4504
                          • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                            "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2080,12950600486647670716,7624651067912604859,131072 --lang=en-US --disable-client-side-phishing-detection --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=9 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=5276 /prefetch:1
                            4⤵
                              PID:5016
                            • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                              "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2080,12950600486647670716,7624651067912604859,131072 --lang=en-US --disable-client-side-phishing-detection --instant-process --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=10 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=5292 /prefetch:1
                              4⤵
                                PID:440
                              • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                                "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2080,12950600486647670716,7624651067912604859,131072 --lang=en-US --disable-client-side-phishing-detection --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=11 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=5716 /prefetch:1
                                4⤵
                                  PID:4584
                                • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                                  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2080,12950600486647670716,7624651067912604859,131072 --lang=en-US --disable-client-side-phishing-detection --instant-process --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=12 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=5668 /prefetch:1
                                  4⤵
                                    PID:2296
                            • C:\Windows\System32\CompPkgSrv.exe
                              C:\Windows\System32\CompPkgSrv.exe -Embedding
                              1⤵
                                PID:4208
                              • C:\Windows\System32\CompPkgSrv.exe
                                C:\Windows\System32\CompPkgSrv.exe -Embedding
                                1⤵
                                  PID:2760

                                Network

                                      MITRE ATT&CK Enterprise v15

                                      Replay Monitor

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                                      Downloads

                                      3903daac9bc4a3b7.timestamp

                                      • Path C:\ProgramData\Oracle\Java\.oracle_jre_usage\3903daac9bc4a3b7.timestamp
                                      • Size 46B
                                      • SHA256 57659e16a460115c06feba16a7d1f971c9b356e8cf980c70e9c0503dbfcbfe94
                                      • MD5 SHA1 SHA512

                                      settings.dat

                                      • Path C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Crashpad\settings.dat
                                      • Size 152B
                                      • SHA256 a358de2c0eba30c70a56022c44a3775aa99ffa819cd7f42f7c45ac358b5e739f
                                      • MD5 SHA1 SHA512

                                      settings.dat

                                      • Path C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Crashpad\settings.dat
                                      • Size 152B
                                      • SHA256 c9cd202ebb55fe8dd3e5563948bab458e947d7ba33bc0f38c6b37ce5d0bd7c3e
                                      • MD5 SHA1 SHA512

                                      the-real-index

                                      • Path C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\Code Cache\js\index-dir\the-real-index
                                      • Size 120B
                                      • SHA256 22160bdafc473d17fb168aefe4edb215047968e21ea292c80935e207a64229f4
                                      • MD5 SHA1 SHA512

                                      Preferences

                                      • Path C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\Preferences
                                      • Size 5KB
                                      • SHA256 223bea0dce511eb553ba4aaac51001fa0b711db17852d6aad9771689ec6d7cab
                                      • MD5 SHA1 SHA512 SSDEEP

                                      Preferences

                                      • Path C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\Preferences
                                      • Size 6KB
                                      • SHA256 5e717065639e78734f1fef78204fa4687ba51b76ccb18f5254e0f49ee2f7237c
                                      • MD5 SHA1 SHA512 SSDEEP

                                      CURRENT

                                      • Path C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\data_reduction_proxy_leveldb\CURRENT
                                      • Size 16B
                                      • SHA256 0861415cada612ea5834d56e2cf1055d3e63979b69eb71d32ae9ae394d8306cd
                                      • MD5 SHA1 SHA512

                                      Local State

                                      • Path C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Local State
                                      • Size 11KB
                                      • SHA256 eae0a1c02b5242c12aafe1465fc39f64da5d38fb002c16beaca09404c61b95c6
                                      • MD5 SHA1 SHA512 SSDEEP

                                      +JXF1433512921422012161.tmp

                                      • Path C:\Users\Admin\AppData\Local\Temp\+JXF1433512921422012161.tmp
                                      • Size 405KB
                                      • SHA256 0cb1bc1335372d9e3a0cf6f5311c7cce87af90d2a777fdeec18be605a2a70bc1
                                      • MD5 SHA1 SHA512 SSDEEP

                                      +JXF4518630781320243274.tmp

                                      • Path C:\Users\Admin\AppData\Local\Temp\+JXF4518630781320243274.tmp
                                      • Size 398KB
                                      • SHA256 1936d24cb0f4ce7006e08c6ef4243d2e42a7b45f2249f8fe54d92f76a317dfd1
                                      • MD5 SHA1 SHA512 SSDEEP

                                      +JXF7790732848649195738.tmp

                                      • Path C:\Users\Admin\AppData\Local\Temp\+JXF7790732848649195738.tmp
                                      • Size 397KB
                                      • SHA256 64f8be6e55c37e32ef03da99714bf3aa58b8f2099bfe4f759a7578e3b8291123
                                      • MD5 SHA1 SHA512 SSDEEP

                                      SKlauncher-3.2.jar

                                      • Path C:\Users\Admin\AppData\Local\Temp\e4j376B.tmp_dir1719246792\SKlauncher-3.2.jar
                                      • Size 1.1MB
                                      • SHA256 f7d3e01dcfc001cc80a988c518d4358955842d140054214d1367972c5c543350
                                      • MD5 SHA1 SHA512 SSDEEP

                                      flatlaf-windows-x86_64-4534717418300.dll

                                      • Path C:\Users\Admin\AppData\Local\Temp\flatlaf.temp\flatlaf-windows-x86_64-4534717418300.dll
                                      • Size 22KB
                                      • SHA256 ae3352b6ad6cffaae55f4387f9f5e79365ea17f8d5fb45ef11d21c3300a49a4c
                                      • MD5 SHA1 SHA512 SSDEEP

                                      sklauncher-fx.jar

                                      • Path C:\Users\Admin\AppData\Roaming\.minecraft\sklauncher-fx.jar
                                      • Size 14.1MB
                                      • SHA256 a163ebc83ed564ed60fcf502b852857249dfa55ea1a3f77cec257080001d1200
                                      • MD5 SHA1 SHA512 SSDEEP

                                      memory/1576-20-0x000001D41C460000-0x000001D41C6D0000-memory.dmp

                                      memory/1576-30-0x000001D41AC40000-0x000001D41AC41000-memory.dmp

                                      memory/1576-31-0x000001D41C460000-0x000001D41C6D0000-memory.dmp

                                      memory/3768-121-0x0000000002470000-0x0000000002471000-memory.dmp

                                      memory/3768-300-0x0000000002470000-0x0000000002471000-memory.dmp

                                      memory/3768-215-0x0000000002470000-0x0000000002471000-memory.dmp

                                      memory/3768-218-0x0000000002470000-0x0000000002471000-memory.dmp

                                      memory/3768-220-0x0000000002470000-0x0000000002471000-memory.dmp

                                      memory/3768-221-0x0000000002470000-0x0000000002471000-memory.dmp

                                      memory/3768-233-0x0000000002470000-0x0000000002471000-memory.dmp

                                      memory/3768-232-0x0000000002470000-0x0000000002471000-memory.dmp

                                      memory/3768-239-0x0000000002470000-0x0000000002471000-memory.dmp

                                      memory/3768-123-0x0000000002470000-0x0000000002471000-memory.dmp

                                      memory/3768-291-0x0000000002470000-0x0000000002471000-memory.dmp

                                      memory/3768-214-0x0000000002470000-0x0000000002471000-memory.dmp

                                      memory/3768-82-0x0000000002470000-0x0000000002471000-memory.dmp

                                      memory/3768-136-0x0000000002470000-0x0000000002471000-memory.dmp

                                      memory/3768-49-0x0000000002470000-0x0000000002471000-memory.dmp

                                      memory/3768-764-0x00000000026B0000-0x0000000002920000-memory.dmp

                                      memory/3768-45-0x0000000002470000-0x0000000002471000-memory.dmp

                                      memory/3768-207-0x0000000002470000-0x0000000002471000-memory.dmp

                                      memory/3768-34-0x00000000026B0000-0x0000000002920000-memory.dmp

                                      memory/3768-173-0x0000000002470000-0x0000000002471000-memory.dmp

                                      memory/3768-147-0x0000000002470000-0x0000000002471000-memory.dmp

                                      memory/3952-5-0x000001A821230000-0x000001A8214A0000-memory.dmp

                                      memory/3952-16-0x000001A821230000-0x000001A8214A0000-memory.dmp

                                      memory/3952-15-0x000001A81FA50000-0x000001A81FA51000-memory.dmp