Analysis

  • max time kernel
    155s
  • max time network
    159s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231215-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
  • submitted
    23/01/2024, 15:56

General

  • Target
    TankuumSetup.exe
  • Size 140.1MB
  • Sample240123-tddxesbgdl
  • SHA256 1b638d5797c7091be2404509fa9933cfb24a01b40ad74626193d277e234057ad
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Signatures

  • Checks computer location settings 2 TTPs 2 IoCs

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

  • Loads dropped DLL 2 IoCs
  • 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
  • Looks up external IP address via web service 2 IoCs

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

  • Checks processor information in registry 2 TTPs 7 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Detects videocard installed 1 TTPs 1 IoCs

    Uses WMIC.exe to determine videocard installed.

  • Enumerates processes with tasklist 1 TTPs 1 IoCs
  • Kills process with taskkill 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\TankuumSetup.exe
    "C:\Users\Admin\AppData\Local\Temp\TankuumSetup.exe"
    1⤵
    • Checks computer location settings
    • Loads dropped DLL
    • Checks processor information in registry
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of WriteProcessMemory
    PID:1888
    • C:\Users\Admin\AppData\Local\Temp\TankuumSetup.exe
      "C:\Users\Admin\AppData\Local\Temp\TankuumSetup.exe" --type=gpu-process --user-data-dir="C:\Users\Admin\AppData\Roaming\TankuumSetup is a game" --gpu-preferences=UAAAAAAAAADgAAAYAAAAAAAAAAAAAAAAAABgAAAAAAAwAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAEgAAAAAAAAASAAAAAAAAAAYAAAAAgAAABAAAAAAAAAAGAAAAAAAAAAQAAAAAAAAAAAAAAAOAAAAEAAAAAAAAAABAAAADgAAAAgAAAAAAAAACAAAAAAAAAA= --mojo-platform-channel-handle=1792 --field-trial-handle=1844,i,14394014285603725567,7224484899948558089,131072 --disable-features=SpareRendererForSitePerProcess,WinRetrieveSuggestionsOnlyOnDemand /prefetch:2
      2⤵
        PID:1648
      • C:\Users\Admin\AppData\Local\Temp\TankuumSetup.exe
        "C:\Users\Admin\AppData\Local\Temp\TankuumSetup.exe" --type=utility --utility-sub-type=network.mojom.NetworkService --lang=en-US --service-sandbox-type=none --user-data-dir="C:\Users\Admin\AppData\Roaming\TankuumSetup is a game" --mojo-platform-channel-handle=2160 --field-trial-handle=1844,i,14394014285603725567,7224484899948558089,131072 --disable-features=SpareRendererForSitePerProcess,WinRetrieveSuggestionsOnlyOnDemand /prefetch:8
        2⤵
          PID:2508
        • C:\Users\Admin\AppData\Local\Temp\TankuumSetup.exe
          "C:\Users\Admin\AppData\Local\Temp\TankuumSetup.exe" --type=renderer --user-data-dir="C:\Users\Admin\AppData\Roaming\TankuumSetup is a game" --app-path="C:\Users\Admin\AppData\Local\Temp\resources\app.asar" --enable-sandbox --lang=en-US --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=4 --mojo-platform-channel-handle=2404 --field-trial-handle=1844,i,14394014285603725567,7224484899948558089,131072 --disable-features=SpareRendererForSitePerProcess,WinRetrieveSuggestionsOnlyOnDemand /prefetch:1
          2⤵
          • Checks computer location settings
          PID:1088
        • C:\Windows\system32\cmd.exe
          C:\Windows\system32\cmd.exe /d /s /c "C:\Windows\system32\reg.exe QUERY "HKCU\Software\Valve\Steam" /v SteamPath"
          2⤵
            PID:4364
            • C:\Windows\system32\reg.exe
              C:\Windows\system32\reg.exe QUERY "HKCU\Software\Valve\Steam" /v SteamPath
              3⤵
                PID:3260
            • C:\Windows\system32\cmd.exe
              C:\Windows\system32\cmd.exe /d /s /c "wmic /Node:localhost /Namespace:\\root\SecurityCenter2 Path AntiVirusProduct Get displayName /Format:List"
              2⤵
                PID:2420
                • C:\Windows\System32\Wbem\WMIC.exe
                  wmic /Node:localhost /Namespace:\\root\SecurityCenter2 Path AntiVirusProduct Get displayName /Format:List
                  3⤵
                  • Suspicious use of AdjustPrivilegeToken
                  PID:5016
              • C:\Windows\system32\cmd.exe
                C:\Windows\system32\cmd.exe /d /s /c "C:\Windows\system32\reg.exe QUERY "HKCU\SOFTWARE\Martin Prikryl\WinSCP 2\Sessions""
                2⤵
                  PID:404
                  • C:\Windows\system32\reg.exe
                    C:\Windows\system32\reg.exe QUERY "HKCU\SOFTWARE\Martin Prikryl\WinSCP 2\Sessions"
                    3⤵
                      PID:832
                  • C:\Windows\system32\cmd.exe
                    C:\Windows\system32\cmd.exe /d /s /c "wmic path win32_VideoController get name"
                    2⤵
                      PID:4824
                      • C:\Windows\System32\Wbem\WMIC.exe
                        wmic path win32_VideoController get name
                        3⤵
                        • Detects videocard installed
                        • Suspicious use of AdjustPrivilegeToken
                        PID:4888
                    • C:\Windows\system32\cmd.exe
                      C:\Windows\system32\cmd.exe /d /s /c "cmd /c chcp 65001>nul && netsh wlan show profiles"
                      2⤵
                        PID:892
                        • C:\Windows\system32\cmd.exe
                          cmd /c chcp 65001
                          3⤵
                            PID:2484
                            • C:\Windows\system32\chcp.com
                              chcp 65001
                              4⤵
                                PID:2388
                            • C:\Windows\system32\netsh.exe
                              netsh wlan show profiles
                              3⤵
                                PID:220
                            • C:\Windows\system32\cmd.exe
                              C:\Windows\system32\cmd.exe /d /s /c "taskkill /IM chrome.exe /F"
                              2⤵
                                PID:3892
                                • C:\Windows\system32\taskkill.exe
                                  taskkill /IM chrome.exe /F
                                  3⤵
                                  • Kills process with taskkill
                                  PID:3204
                              • C:\Windows\system32\cmd.exe
                                C:\Windows\system32\cmd.exe /d /s /c "C:\Windows\system32\reg.exe ADD "HKCU\Software\Microsoft\Windows\CurrentVersion\Run" /v WindowsBootManager /t REG_SZ /d C:\Users\Admin\AppData\Local\Microsoft\Windows\0\WindowsBootManager.exe /f"
                                2⤵
                                  PID:1800
                                  • C:\Windows\system32\reg.exe
                                    C:\Windows\system32\reg.exe ADD "HKCU\Software\Microsoft\Windows\CurrentVersion\Run" /v WindowsBootManager /t REG_SZ /d C:\Users\Admin\AppData\Local\Microsoft\Windows\0\WindowsBootManager.exe /f
                                    3⤵
                                    • Adds Run key to start application
                                    PID:3132
                                • C:\Windows\system32\cmd.exe
                                  C:\Windows\system32\cmd.exe /d /s /c "tasklist"
                                  2⤵
                                    PID:4872
                                    • C:\Windows\system32\tasklist.exe
                                      tasklist
                                      3⤵
                                      • Enumerates processes with tasklist
                                      PID:4440
                                  • C:\Users\Admin\AppData\Local\Temp\TankuumSetup.exe
                                    "C:\Users\Admin\AppData\Local\Temp\TankuumSetup.exe" --type=gpu-process --disable-gpu-sandbox --use-gl=disabled --gpu-vendor-id=4318 --gpu-device-id=140 --gpu-sub-system-id=0 --gpu-revision=0 --gpu-driver-version=10.0.19041.546 --user-data-dir="C:\Users\Admin\AppData\Roaming\TankuumSetup is a game" --gpu-preferences=UAAAAAAAAADoAAAYAAAAAAAAAAAAAAAAAABgAAAAAAAwAAAAAAAAAAAAAAAAAQAAAAAAAAAAAAAAAAAAAAAAAEgAAAAAAAAASAAAAAAAAAAYAAAAAgAAABAAAAAAAAAAGAAAAAAAAAAQAAAAAAAAAAAAAAAOAAAAEAAAAAAAAAABAAAADgAAAAgAAAAAAAAACAAAAAAAAAA= --mojo-platform-channel-handle=732 --field-trial-handle=1844,i,14394014285603725567,7224484899948558089,131072 --disable-features=SpareRendererForSitePerProcess,WinRetrieveSuggestionsOnlyOnDemand /prefetch:2
                                    2⤵
                                    • Suspicious behavior: EnumeratesProcesses
                                    PID:4776

                                Network

                                      MITRE ATT&CK Enterprise v15

                                      Replay Monitor

                                      Loading Replay Monitor...

                                      Downloads

                                      dc1147d0-811b-496b-a1a7-263d66cde794.tmp.node

                                      • Path C:\Users\Admin\AppData\Local\Temp\dc1147d0-811b-496b-a1a7-263d66cde794.tmp.node
                                      • Size 2.7MB
                                      • SHA256 d868ca7a24ce77b9ed0d78ce2e75e85f7c342888def0b8d65a9a965b81d3e1ab
                                      • MD5 SHA1 SHA512 SSDEEP

                                      e82f8ddb-b9a3-44e3-ac4f-b08e449e6648.tmp.node

                                      • Path C:\Users\Admin\AppData\Local\Temp\e82f8ddb-b9a3-44e3-ac4f-b08e449e6648.tmp.node
                                      • Size 641KB
                                      • SHA256 07e3c56c257c03dcad4c32dc14215a4180b598a3cef956114731e6d4dd5db4d1
                                      • MD5 SHA1 SHA512 SSDEEP

                                      All Autofill Data.txt

                                      • Path C:\Users\Admin\AppData\Local\Temp\epsilon-Admin\AutoFill Data\All Autofill Data.txt
                                      • Size 249B
                                      • SHA256 1b6d3f6ad849e115bf20175985bed9bcfc6ec206e288b97ac14c3a23b5d28a4b
                                      • MD5 SHA1 SHA512

                                      All Passwords.txt

                                      • Path C:\Users\Admin\AppData\Local\Temp\epsilon-Admin\Passwords\All Passwords.txt
                                      • Size 231B
                                      • SHA256 753b99d2b4e8c58bfd10995d0c2c19255fe9c8f53703bb27d1b6f76f1f4e83cc
                                      • MD5 SHA1 SHA512

                                      default.dic

                                      • Path C:\Users\Admin\AppData\Roaming\Microsoft\Spelling\en-US\default.dic
                                      • Size 2B
                                      • SHA256 b3d510ef04275ca8e698e5b3cbb0ece3949ef9252f0cdc839e9ee347409a2209
                                      • MD5 SHA1 SHA512

                                      Network Persistent State

                                      • Path C:\Users\Admin\AppData\Roaming\TankuumSetup is a game\Network\Network Persistent State
                                      • Size 296B
                                      • SHA256 6d4a95ef467b5f0dffa3493df02948e8be2340ba49fb525f2b103de4dbcfcecc
                                      • MD5 SHA1 SHA512

                                      Network Persistent State~RFe58db96.TMP

                                      • Path C:\Users\Admin\AppData\Roaming\TankuumSetup is a game\Network\Network Persistent State~RFe58db96.TMP
                                      • Size 59B
                                      • SHA256 226eec4486509917aa336afebd6ff65777b75b65f1fb06891d2a857a9421a974
                                      • MD5 SHA1 SHA512

                                      memory/1088-26-0x00007FFA6B180000-0x00007FFA6B181000-memory.dmp

                                      memory/1088-120-0x000002A0E96E0000-0x000002A0E9710000-memory.dmp

                                      memory/1088-25-0x00007FFA6B710000-0x00007FFA6B711000-memory.dmp

                                      memory/1648-6-0x00007FFA6C930000-0x00007FFA6C931000-memory.dmp

                                      memory/4776-144-0x000001B17F200000-0x000001B17F201000-memory.dmp

                                      memory/4776-143-0x000001B17F200000-0x000001B17F201000-memory.dmp

                                      memory/4776-142-0x000001B17F200000-0x000001B17F201000-memory.dmp

                                      memory/4776-149-0x000001B17F200000-0x000001B17F201000-memory.dmp

                                      memory/4776-148-0x000001B17F200000-0x000001B17F201000-memory.dmp

                                      memory/4776-151-0x000001B17F200000-0x000001B17F201000-memory.dmp

                                      memory/4776-150-0x000001B17F200000-0x000001B17F201000-memory.dmp

                                      memory/4776-153-0x000001B17F200000-0x000001B17F201000-memory.dmp

                                      memory/4776-152-0x000001B17F200000-0x000001B17F201000-memory.dmp

                                      memory/4776-154-0x000001B17F200000-0x000001B17F201000-memory.dmp