Analysis

  • max time kernel
    150s
  • max time network
    156s
  • platform
    windows7_x64
  • resource
    win7-20240215-en
  • resource tags

    arch:x64arch:x86image:win7-20240215-enlocale:en-usos:windows7-x64system
  • submitted
    23-03-2024 11:12

General

  • Target

    azkzkzz.exe

  • Size

    134.3MB

  • MD5

    d731a941b7e19d97e648a8814c2261b7

  • SHA1

    7d4dab7356bcaad4b8ddfa9e1aa123e070453fc5

  • SHA256

    3357e2751c152a44e9ec41d08205d70f9fc185d59ec0bf30b2e5a1009c917046

  • SHA512

    9c634c9530232715bf8984cc1f51042891e049abd47a946257c098bfeca5b1755fb99be4a4928ca49e29cd8a86a212e7a35537b23c0f80c87bb7429e40a3aa5a

  • SSDEEP

    1572864:XicLgaO9p7sMMcmhRhgBx/CyhwGKsME1:khTRsJE1

Malware Config

Signatures

  • Epsilon Stealer

    Information stealer.

  • Checks computer location settings 2 TTPs 1 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.

  • Detects videocard installed 1 TTPs 1 IoCs

    Uses WMIC.exe to determine videocard installed.

  • Enumerates processes with tasklist 1 TTPs 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\azkzkzz.exe
    "C:\Users\Admin\AppData\Local\Temp\azkzkzz.exe"
    1⤵
    • Checks computer location settings
    • Loads dropped DLL
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:1776
    • C:\Windows\system32\cmd.exe
      C:\Windows\system32\cmd.exe /d /s /c "wmic CsProduct Get UUID"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2488
      • C:\Windows\System32\Wbem\WMIC.exe
        wmic CsProduct Get UUID
        3⤵
        • Suspicious use of AdjustPrivilegeToken
        PID:2544
    • C:\Users\Admin\AppData\Local\Temp\azkzkzz.exe
      "C:\Users\Admin\AppData\Local\Temp\azkzkzz.exe" --type=gpu-process --field-trial-handle=1100,9353641859638623006,14545236453140119346,131072 --disable-features=SpareRendererForSitePerProcess,WinRetrieveSuggestionsOnlyOnDemand --user-data-dir="C:\Users\Admin\AppData\Roaming\azkzkzz" --gpu-preferences=UAAAAAAAAADgAAAIAAAAAAAAAAAAAAAAAABgAAAAAAAwAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAHgAAAAAAAAAeAAAAAAAAAAoAAAABAAAACAAAAAAAAAAKAAAAAAAAAAwAAAAAAAAADgAAAAAAAAAEAAAAAAAAAAAAAAADQAAABAAAAAAAAAAAQAAAA0AAAAQAAAAAAAAAAQAAAANAAAAEAAAAAAAAAAHAAAADQAAAAgAAAAAAAAACAAAAAAAAAA= --mojo-platform-channel-handle=1124 /prefetch:2
      2⤵
        PID:2548
      • 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⤵
        • Suspicious use of WriteProcessMemory
        PID:1556
        • C:\Windows\system32\reg.exe
          C:\Windows\system32\reg.exe QUERY "HKCU\SOFTWARE\Martin Prikryl\WinSCP 2\Sessions"
          3⤵
            PID:352
        • 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⤵
          • Suspicious use of WriteProcessMemory
          PID:1480
          • C:\Windows\system32\reg.exe
            C:\Windows\system32\reg.exe QUERY "HKCU\Software\Valve\Steam" /v SteamPath
            3⤵
              PID:1028
          • C:\Windows\system32\cmd.exe
            C:\Windows\system32\cmd.exe /d /s /c "tasklist"
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:2484
            • C:\Windows\system32\tasklist.exe
              tasklist
              3⤵
              • Enumerates processes with tasklist
              • Suspicious use of AdjustPrivilegeToken
              PID:1864
          • 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:1572
              • C:\Windows\System32\Wbem\WMIC.exe
                wmic /Node:localhost /Namespace:\\root\SecurityCenter2 Path AntiVirusProduct Get displayName /Format:List
                3⤵
                • Suspicious use of AdjustPrivilegeToken
                PID:1828
            • C:\Windows\system32\cmd.exe
              C:\Windows\system32\cmd.exe /d /s /c "wmic path win32_VideoController get name"
              2⤵
                PID:1544
                • C:\Windows\System32\Wbem\WMIC.exe
                  wmic path win32_VideoController get name
                  3⤵
                  • Detects videocard installed
                  PID:2132
              • C:\Windows\system32\cmd.exe
                C:\Windows\system32\cmd.exe /d /s /c "cmd /c chcp 65001>nul && netsh wlan show profiles"
                2⤵
                  PID:2280
                  • C:\Windows\system32\cmd.exe
                    cmd /c chcp 65001
                    3⤵
                      PID:2296
                      • C:\Windows\system32\chcp.com
                        chcp 65001
                        4⤵
                          PID:1356
                      • C:\Windows\system32\netsh.exe
                        netsh wlan show profiles
                        3⤵
                          PID:2632
                      • C:\Users\Admin\AppData\Local\Temp\azkzkzz.exe
                        "C:\Users\Admin\AppData\Local\Temp\azkzkzz.exe" --type=gpu-process --field-trial-handle=1100,9353641859638623006,14545236453140119346,131072 --disable-features=SpareRendererForSitePerProcess,WinRetrieveSuggestionsOnlyOnDemand --user-data-dir="C:\Users\Admin\AppData\Roaming\azkzkzz" --gpu-preferences=UAAAAAAAAADgAAAIAAAAAAAAAAAAAAAAAABgAAAAAAAwAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAHgAAAAAAAAAeAAAAAAAAAAoAAAABAAAACAAAAAAAAAAKAAAAAAAAAAwAAAAAAAAADgAAAAAAAAAEAAAAAAAAAAAAAAADQAAABAAAAAAAAAAAQAAAA0AAAAQAAAAAAAAAAQAAAANAAAAEAAAAAAAAAAHAAAADQAAAAgAAAAAAAAACAAAAAAAAAA= --use-gl=angle --use-angle=swiftshader-webgl --mojo-platform-channel-handle=1224 /prefetch:2
                        2⤵
                          PID:2664
                        • C:\Users\Admin\AppData\Local\Temp\azkzkzz.exe
                          "C:\Users\Admin\AppData\Local\Temp\azkzkzz.exe" --type=utility --utility-sub-type=network.mojom.NetworkService --field-trial-handle=1100,9353641859638623006,14545236453140119346,131072 --disable-features=SpareRendererForSitePerProcess,WinRetrieveSuggestionsOnlyOnDemand --lang=en-US --service-sandbox-type=none --user-data-dir="C:\Users\Admin\AppData\Roaming\azkzkzz" --mojo-platform-channel-handle=1596 /prefetch:8
                          2⤵
                          • Suspicious behavior: EnumeratesProcesses
                          PID:1096
                        • 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:2816
                            • 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:956
                          • C:\Windows\system32\cmd.exe
                            C:\Windows\system32\cmd.exe /d /s /c "tasklist"
                            2⤵
                              PID:1476
                              • C:\Windows\system32\tasklist.exe
                                tasklist
                                3⤵
                                • Enumerates processes with tasklist
                                PID:1312

                          Network

                          MITRE ATT&CK Enterprise v15

                          Replay Monitor

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                          Downloads

                          • C:\Users\Admin\AppData\Local\Temp\epsilon-Admin\AutoFill Data\All Autofill Data.txt

                            Filesize

                            240B

                            MD5

                            810ae82f863a5ffae14d3b3944252a4e

                            SHA1

                            5393e27113753191436b14f0cafa8acabcfe6b2a

                            SHA256

                            453478914b72d9056472fb1e44c69606c62331452f47a1f3c02190f26501785c

                            SHA512

                            2421a397dd2ebb17947167addacd3117f666ddab388e3678168075f58dc8eee15bb49a4aac2290140ae5102924852d27b538740a859d0b35245f505b20f29112

                          • C:\Users\Admin\AppData\Local\Temp\epsilon-Admin\Credit Cards\All Credit Cards.txt

                            Filesize

                            231B

                            MD5

                            dec2be4f1ec3592cea668aa279e7cc9b

                            SHA1

                            327cf8ab0c895e10674e00ea7f437784bb11d718

                            SHA256

                            753b99d2b4e8c58bfd10995d0c2c19255fe9c8f53703bb27d1b6f76f1f4e83cc

                            SHA512

                            81728e3d31b72905b3a09c79d1e307c4e8e79d436fcfe7560a8046b46ca4ae994fdfaeb1bc2328e35f418b8128f2e7239289e84350e142146df9cde86b20bb66

                          • \Users\Admin\AppData\Local\Temp\819db232-e526-41f4-a849-e27b439adad3.tmp.node

                            Filesize

                            652KB

                            MD5

                            c5c6631f2706203785a1880d748869e9

                            SHA1

                            5f80f6e68168b19d5bdca53e568b3e0584688383

                            SHA256

                            60932f76ed62a1ab950663dda8ba07ca47e2ba6b7c2caf29884c42e0901ce8c8

                            SHA512

                            58b65a7063d990b0becb7e9dbebe56cf16d8d626e0be175be59c52fe8718d2646b9e3318c11261c133a85e0006de59238430c843e244093f32a894244d8400b4

                          • \Users\Admin\AppData\Local\Temp\fdbf104a-7deb-414d-95d2-1d64db9785a1.tmp.node

                            Filesize

                            2.7MB

                            MD5

                            e0ff0b488af11e33ee8016f7f0cffeae

                            SHA1

                            1c9d8c97db2bb7f163aa30caddd4a4a3c870cf9e

                            SHA256

                            70bcf19069421a1ebb01f7adc10cca544c8960a4575bd37f80e79762b9b9be81

                            SHA512

                            a0e0cf3dd68bae4d7e20f19411e65603900c87788b3ea146f53d2f8bf9bb1deb214b4f0bad6e26c35392d1899f002789668203ed148b95ff74a269c07f94f0d8

                          • memory/2548-5-0x0000000000060000-0x0000000000061000-memory.dmp

                            Filesize

                            4KB

                          • memory/2548-37-0x0000000077760000-0x0000000077761000-memory.dmp

                            Filesize

                            4KB