Analysis

  • max time kernel
    151s
  • max time network
    159s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    23-03-2024 13:01

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 6 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 use of WriteProcessMemory
    PID:116
    • C:\Windows\system32\cmd.exe
      C:\Windows\system32\cmd.exe /d /s /c "wmic CsProduct Get UUID"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:4988
      • C:\Windows\System32\Wbem\WMIC.exe
        wmic CsProduct Get UUID
        3⤵
        • Suspicious use of AdjustPrivilegeToken
        PID:4236
    • C:\Users\Admin\AppData\Local\Temp\azkzkzz.exe
      "C:\Users\Admin\AppData\Local\Temp\azkzkzz.exe" --type=gpu-process --field-trial-handle=1596,7002388262374507346,11843141956322580693,131072 --disable-features=SpareRendererForSitePerProcess,WinRetrieveSuggestionsOnlyOnDemand --user-data-dir="C:\Users\Admin\AppData\Roaming\azkzkzz" --gpu-preferences=UAAAAAAAAADgAAAIAAAAAAAAAAAAAAAAAABgAAAAAAAwAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAHgAAAAAAAAAeAAAAAAAAAAoAAAABAAAACAAAAAAAAAAKAAAAAAAAAAwAAAAAAAAADgAAAAAAAAAEAAAAAAAAAAAAAAADQAAABAAAAAAAAAAAQAAAA0AAAAQAAAAAAAAAAQAAAANAAAAEAAAAAAAAAAHAAAADQAAAAgAAAAAAAAACAAAAAAAAAA= --mojo-platform-channel-handle=1700 /prefetch:2
      2⤵
        PID:4716
      • 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=1596,7002388262374507346,11843141956322580693,131072 --disable-features=SpareRendererForSitePerProcess,WinRetrieveSuggestionsOnlyOnDemand --lang=en-US --service-sandbox-type=none --user-data-dir="C:\Users\Admin\AppData\Roaming\azkzkzz" --mojo-platform-channel-handle=1948 /prefetch:8
        2⤵
        • Suspicious behavior: EnumeratesProcesses
        PID:1464
      • 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:3916
        • C:\Windows\system32\reg.exe
          C:\Windows\system32\reg.exe QUERY "HKCU\SOFTWARE\Martin Prikryl\WinSCP 2\Sessions"
          3⤵
            PID:1228
        • 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:3256
          • C:\Windows\system32\reg.exe
            C:\Windows\system32\reg.exe QUERY "HKCU\Software\Valve\Steam" /v SteamPath
            3⤵
              PID:1444
          • C:\Windows\system32\cmd.exe
            C:\Windows\system32\cmd.exe /d /s /c "tasklist"
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:3820
            • C:\Windows\system32\tasklist.exe
              tasklist
              3⤵
              • Enumerates processes with tasklist
              • Suspicious use of AdjustPrivilegeToken
              PID:4376
          • 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⤵
            • Suspicious use of WriteProcessMemory
            PID:892
            • C:\Windows\System32\Wbem\WMIC.exe
              wmic /Node:localhost /Namespace:\\root\SecurityCenter2 Path AntiVirusProduct Get displayName /Format:List
              3⤵
              • Suspicious use of AdjustPrivilegeToken
              PID:4176
          • C:\Windows\system32\cmd.exe
            C:\Windows\system32\cmd.exe /d /s /c "wmic path win32_VideoController get name"
            2⤵
              PID:4728
              • C:\Windows\System32\Wbem\WMIC.exe
                wmic path win32_VideoController get name
                3⤵
                • Detects videocard installed
                PID:3284
            • C:\Windows\system32\cmd.exe
              C:\Windows\system32\cmd.exe /d /s /c "cmd /c chcp 65001>nul && netsh wlan show profiles"
              2⤵
                PID:1508
                • C:\Windows\system32\cmd.exe
                  cmd /c chcp 65001
                  3⤵
                    PID:4984
                    • C:\Windows\system32\chcp.com
                      chcp 65001
                      4⤵
                        PID:2388
                    • C:\Windows\system32\netsh.exe
                      netsh wlan show profiles
                      3⤵
                        PID:2680
                    • 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:4396
                        • 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:3452
                      • C:\Windows\system32\cmd.exe
                        C:\Windows\system32\cmd.exe /d /s /c "tasklist"
                        2⤵
                          PID:1132
                          • C:\Windows\system32\tasklist.exe
                            tasklist
                            3⤵
                            • Enumerates processes with tasklist
                            PID:4236
                        • C:\Users\Admin\AppData\Local\Temp\azkzkzz.exe
                          "C:\Users\Admin\AppData\Local\Temp\azkzkzz.exe" --type=gpu-process --field-trial-handle=1596,7002388262374507346,11843141956322580693,131072 --disable-features=SpareRendererForSitePerProcess,WinRetrieveSuggestionsOnlyOnDemand --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\azkzkzz" --gpu-preferences=UAAAAAAAAADoAAAIAAAAAAAAAAAAAAAAAABgAAAIAAAwAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAHgAAAAAAAAAeAAAAAAAAAAoAAAABAAAACAAAAAAAAAAKAAAAAAAAAAwAAAAAAAAADgAAAAAAAAAEAAAAAAAAAAAAAAADQAAABAAAAAAAAAAAQAAAA0AAAAQAAAAAAAAAAQAAAANAAAAEAAAAAAAAAAHAAAADQAAAAgAAAAAAAAACAAAAAAAAAA= --mojo-platform-channel-handle=2868 /prefetch:2
                          2⤵
                          • Suspicious behavior: EnumeratesProcesses
                          PID:3684
                      • C:\Windows\System32\CompPkgSrv.exe
                        C:\Windows\System32\CompPkgSrv.exe -Embedding
                        1⤵
                          PID:3264
                        • C:\Windows\system32\rundll32.exe
                          "C:\Windows\system32\rundll32.exe" "C:\Windows\SYSTEM32\EDGEHTML.dll",#141 Microsoft.VCLibs.140.00_8wekyb3d8bbwe
                          1⤵
                            PID:4912
                          • C:\Windows\System32\svchost.exe
                            C:\Windows\System32\svchost.exe -k UnistackSvcGroup
                            1⤵
                              PID:1444

                            Network

                            MITRE ATT&CK Enterprise v15

                            Replay Monitor

                            Loading Replay Monitor...

                            Downloads

                            • C:\Users\Admin\AppData\Local\Temp\2a1eaca4-2649-40ed-9f17-49ecbb6b77e9.tmp.node

                              Filesize

                              652KB

                              MD5

                              62e1d2c1e9f2479c3bdb64616b6d47bd

                              SHA1

                              e0bdf6bdfdf2565b55ea4a34b89d98359ea04028

                              SHA256

                              b825114f3e6cacfc4807bba2825fd281930704ea56e977083fb5a48d6bd7e854

                              SHA512

                              6408b8141b37ece131359cb94a3a6d015119099a59473fa7d55cf5cfb1746178c0f40d32772d607ed872ff135f27a40971895a7687f92182a1d40dba9285e07c

                            • C:\Users\Admin\AppData\Local\Temp\93e6b1bc-305e-4fa0-9e10-f6d0fc2319d1.tmp.node

                              Filesize

                              2.7MB

                              MD5

                              e72c7a160113e02f2154990f33eb444b

                              SHA1

                              631daf946d96a54ddb5b55b810e0643c488d2d5c

                              SHA256

                              25597c0ab98fe98ba9de6256e4aa6879a273fe9d475c8616e370d3334ba8b359

                              SHA512

                              3981a2bdf33f6c5cae8d7592aa23ab3f6462c3905b90b5ac5de5e8f7dee90c894c7a30dc227a7a8cce6c9567ad674b6fa839e3ac81cfeece6c71d2ab7e15de3f

                            • 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

                            • memory/1444-112-0x000002C77C800000-0x000002C77C801000-memory.dmp

                              Filesize

                              4KB

                            • memory/1444-76-0x000002C77C250000-0x000002C77C260000-memory.dmp

                              Filesize

                              64KB

                            • memory/1444-92-0x000002C77C350000-0x000002C77C360000-memory.dmp

                              Filesize

                              64KB

                            • memory/1444-108-0x000002C77C6C0000-0x000002C77C6C1000-memory.dmp

                              Filesize

                              4KB

                            • memory/1444-110-0x000002C77C6F0000-0x000002C77C6F1000-memory.dmp

                              Filesize

                              4KB

                            • memory/1444-111-0x000002C77C6F0000-0x000002C77C6F1000-memory.dmp

                              Filesize

                              4KB

                            • memory/3684-115-0x00000183EE6B0000-0x00000183EE6B1000-memory.dmp

                              Filesize

                              4KB

                            • memory/3684-113-0x00000183EE6B0000-0x00000183EE6B1000-memory.dmp

                              Filesize

                              4KB

                            • memory/3684-114-0x00000183EE6B0000-0x00000183EE6B1000-memory.dmp

                              Filesize

                              4KB

                            • memory/3684-119-0x00000183EE6B0000-0x00000183EE6B1000-memory.dmp

                              Filesize

                              4KB

                            • memory/3684-120-0x00000183EE6B0000-0x00000183EE6B1000-memory.dmp

                              Filesize

                              4KB

                            • memory/3684-121-0x00000183EE6B0000-0x00000183EE6B1000-memory.dmp

                              Filesize

                              4KB

                            • memory/3684-123-0x00000183EE6B0000-0x00000183EE6B1000-memory.dmp

                              Filesize

                              4KB

                            • memory/3684-122-0x00000183EE6B0000-0x00000183EE6B1000-memory.dmp

                              Filesize

                              4KB

                            • memory/3684-125-0x00000183EE6B0000-0x00000183EE6B1000-memory.dmp

                              Filesize

                              4KB

                            • memory/3684-124-0x00000183EE6B0000-0x00000183EE6B1000-memory.dmp

                              Filesize

                              4KB

                            • memory/4716-6-0x00007FF85A1B0000-0x00007FF85A1B1000-memory.dmp

                              Filesize

                              4KB