Analysis

  • max time kernel
    156s
  • max time network
    165s
  • platform
    windows7_x64
  • resource
    win7-20231215-en
  • resource tags

    arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-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
  • 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 behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of WriteProcessMemory
    PID:1768
    • 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=1208 --field-trial-handle=1296,i,11551207518545667720,10278222362127485555,131072 --disable-features=SpareRendererForSitePerProcess,WinRetrieveSuggestionsOnlyOnDemand /prefetch:2
      2⤵
        PID:2828
      • 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=1380 --field-trial-handle=1296,i,11551207518545667720,10278222362127485555,131072 --disable-features=SpareRendererForSitePerProcess,WinRetrieveSuggestionsOnlyOnDemand /prefetch:8
        2⤵
          PID:2408
        • 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=1532 --field-trial-handle=1296,i,11551207518545667720,10278222362127485555,131072 --disable-features=SpareRendererForSitePerProcess,WinRetrieveSuggestionsOnlyOnDemand /prefetch:1
          2⤵
          • Checks computer location settings
          PID:2572
        • 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:2564
            • C:\Windows\System32\Wbem\WMIC.exe
              wmic /Node:localhost /Namespace:\\root\SecurityCenter2 Path AntiVirusProduct Get displayName /Format:List
              3⤵
              • Suspicious use of AdjustPrivilegeToken
              PID:2012
          • 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:2144
              • C:\Windows\system32\reg.exe
                C:\Windows\system32\reg.exe QUERY "HKCU\Software\Valve\Steam" /v SteamPath
                3⤵
                  PID:1928
              • 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:1476
                  • C:\Windows\system32\reg.exe
                    C:\Windows\system32\reg.exe QUERY "HKCU\SOFTWARE\Martin Prikryl\WinSCP 2\Sessions"
                    3⤵
                      PID:2540
                  • C:\Windows\system32\cmd.exe
                    C:\Windows\system32\cmd.exe /d /s /c "wmic path win32_VideoController get name"
                    2⤵
                      PID:1736
                      • C:\Windows\System32\Wbem\WMIC.exe
                        wmic path win32_VideoController get name
                        3⤵
                        • Detects videocard installed
                        • Suspicious use of AdjustPrivilegeToken
                        PID:768
                    • C:\Windows\system32\cmd.exe
                      C:\Windows\system32\cmd.exe /d /s /c "cmd /c chcp 65001>nul && netsh wlan show profiles"
                      2⤵
                        PID:2284
                        • C:\Windows\system32\cmd.exe
                          cmd /c chcp 65001
                          3⤵
                            PID:2160
                            • C:\Windows\system32\chcp.com
                              chcp 65001
                              4⤵
                                PID:2376
                            • C:\Windows\system32\netsh.exe
                              netsh wlan show profiles
                              3⤵
                                PID:2216
                            • 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=1732 --field-trial-handle=1296,i,11551207518545667720,10278222362127485555,131072 --disable-features=SpareRendererForSitePerProcess,WinRetrieveSuggestionsOnlyOnDemand /prefetch:2
                              2⤵
                                PID:988
                              • 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:2100
                                  • 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:1632
                                • C:\Windows\system32\cmd.exe
                                  C:\Windows\system32\cmd.exe /d /s /c "tasklist"
                                  2⤵
                                    PID:392
                                    • C:\Windows\system32\tasklist.exe
                                      tasklist
                                      3⤵
                                      • Enumerates processes with tasklist
                                      PID:2204
                                  • 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=1720 --field-trial-handle=1296,i,11551207518545667720,10278222362127485555,131072 --disable-features=SpareRendererForSitePerProcess,WinRetrieveSuggestionsOnlyOnDemand /prefetch:2
                                    2⤵
                                      PID:2816
                                    • 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= --use-gl=angle --use-angle=swiftshader-webgl --mojo-platform-channel-handle=2296 --field-trial-handle=1296,i,11551207518545667720,10278222362127485555,131072 --disable-features=SpareRendererForSitePerProcess,WinRetrieveSuggestionsOnlyOnDemand /prefetch:2
                                      2⤵
                                        PID:1528

                                    Network

                                          MITRE ATT&CK Enterprise v15

                                          Replay Monitor

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                                          Downloads

                                          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 Credit Cards.txt

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

                                          CURRENT~RFf76892d.TMP

                                          • Path C:\Users\Admin\AppData\Roaming\TankuumSetup is a game\Local Storage\leveldb\CURRENT~RFf76892d.TMP
                                          • Size 16B
                                          • SHA256 0f1bad70c7bd1e0a69562853ec529355462fcd0423263a3d39d6d0d70b780443
                                          • MD5 SHA1 SHA512

                                          c9c58135-3880-4beb-a5fb-f556a137f119.tmp.node

                                          • Path \Users\Admin\AppData\Local\Temp\c9c58135-3880-4beb-a5fb-f556a137f119.tmp.node
                                          • Size 641KB
                                          • SHA256 07e3c56c257c03dcad4c32dc14215a4180b598a3cef956114731e6d4dd5db4d1
                                          • MD5 SHA1 SHA512 SSDEEP

                                          eda14cb9-fae4-4bc8-9888-d136fbbbfeb4.tmp.node

                                          • Path \Users\Admin\AppData\Local\Temp\eda14cb9-fae4-4bc8-9888-d136fbbbfeb4.tmp.node
                                          • Size 2.7MB
                                          • SHA256 d868ca7a24ce77b9ed0d78ce2e75e85f7c342888def0b8d65a9a965b81d3e1ab
                                          • MD5 SHA1 SHA512 SSDEEP

                                          memory/1768-19-0x0000000002B50000-0x0000000002B51000-memory.dmp

                                          memory/2828-5-0x0000000000060000-0x0000000000061000-memory.dmp

                                          memory/2828-50-0x0000000076F50000-0x0000000076F51000-memory.dmp