Analysis

  • max time kernel
    150s
  • max time network
    155s
  • platform
    windows7_x64
  • resource
    win7-20240220-en
  • resource tags

    arch:x64arch:x86image:win7-20240220-enlocale:en-usos:windows7-x64system
  • submitted
    25-03-2024 03:40

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:2912
    • C:\Windows\system32\cmd.exe
      C:\Windows\system32\cmd.exe /d /s /c "wmic CsProduct Get UUID"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:112
      • C:\Windows\System32\Wbem\WMIC.exe
        wmic CsProduct Get UUID
        3⤵
        • Suspicious use of AdjustPrivilegeToken
        PID:2488
    • C:\Users\Admin\AppData\Local\Temp\azkzkzz.exe
      "C:\Users\Admin\AppData\Local\Temp\azkzkzz.exe" --type=gpu-process --field-trial-handle=1004,16923892679218296054,15231565249126564527,131072 --disable-features=SpareRendererForSitePerProcess,WinRetrieveSuggestionsOnlyOnDemand --user-data-dir="C:\Users\Admin\AppData\Roaming\azkzkzz" --gpu-preferences=UAAAAAAAAADgAAAIAAAAAAAAAAAAAAAAAABgAAAAAAAwAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAHgAAAAAAAAAeAAAAAAAAAAoAAAABAAAACAAAAAAAAAAKAAAAAAAAAAwAAAAAAAAADgAAAAAAAAAEAAAAAAAAAAAAAAADQAAABAAAAAAAAAAAQAAAA0AAAAQAAAAAAAAAAQAAAANAAAAEAAAAAAAAAAHAAAADQAAAAgAAAAAAAAACAAAAAAAAAA= --mojo-platform-channel-handle=1032 /prefetch:2
      2⤵
        PID:2156
      • 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:1060
        • C:\Windows\system32\reg.exe
          C:\Windows\system32\reg.exe QUERY "HKCU\SOFTWARE\Martin Prikryl\WinSCP 2\Sessions"
          3⤵
            PID:2304
        • 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:2316
          • C:\Windows\system32\reg.exe
            C:\Windows\system32\reg.exe QUERY "HKCU\Software\Valve\Steam" /v SteamPath
            3⤵
              PID:2260
          • C:\Windows\system32\cmd.exe
            C:\Windows\system32\cmd.exe /d /s /c "tasklist"
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:2400
            • C:\Windows\system32\tasklist.exe
              tasklist
              3⤵
              • Enumerates processes with tasklist
              • Suspicious use of AdjustPrivilegeToken
              PID:1412
          • 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:1696
              • C:\Windows\System32\Wbem\WMIC.exe
                wmic /Node:localhost /Namespace:\\root\SecurityCenter2 Path AntiVirusProduct Get displayName /Format:List
                3⤵
                • Suspicious use of AdjustPrivilegeToken
                PID:1584
            • C:\Windows\system32\cmd.exe
              C:\Windows\system32\cmd.exe /d /s /c "wmic path win32_VideoController get name"
              2⤵
                PID:2096
                • C:\Windows\System32\Wbem\WMIC.exe
                  wmic path win32_VideoController get name
                  3⤵
                  • Detects videocard installed
                  PID:1768
              • C:\Windows\system32\cmd.exe
                C:\Windows\system32\cmd.exe /d /s /c "cmd /c chcp 65001>nul && netsh wlan show profiles"
                2⤵
                  PID:1640
                  • C:\Windows\system32\cmd.exe
                    cmd /c chcp 65001
                    3⤵
                      PID:2440
                      • C:\Windows\system32\chcp.com
                        chcp 65001
                        4⤵
                          PID:852
                      • C:\Windows\system32\netsh.exe
                        netsh wlan show profiles
                        3⤵
                          PID:856
                      • 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=1004,16923892679218296054,15231565249126564527,131072 --disable-features=SpareRendererForSitePerProcess,WinRetrieveSuggestionsOnlyOnDemand --lang=en-US --service-sandbox-type=none --user-data-dir="C:\Users\Admin\AppData\Roaming\azkzkzz" --mojo-platform-channel-handle=1576 /prefetch:8
                        2⤵
                        • Suspicious behavior: EnumeratesProcesses
                        PID:2776
                      • C:\Users\Admin\AppData\Local\Temp\azkzkzz.exe
                        "C:\Users\Admin\AppData\Local\Temp\azkzkzz.exe" --type=gpu-process --field-trial-handle=1004,16923892679218296054,15231565249126564527,131072 --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=1184 /prefetch:2
                        2⤵
                          PID:2692
                        • 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:1192
                            • 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:1232
                          • C:\Windows\system32\cmd.exe
                            C:\Windows\system32\cmd.exe /d /s /c "tasklist"
                            2⤵
                              PID:1912
                              • C:\Windows\system32\tasklist.exe
                                tasklist
                                3⤵
                                • Enumerates processes with tasklist
                                PID:2056

                          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\3cb20902-afc5-4a10-b58d-1c2ca7e7f472.tmp.node

                            Filesize

                            652KB

                            MD5

                            62e1d2c1e9f2479c3bdb64616b6d47bd

                            SHA1

                            e0bdf6bdfdf2565b55ea4a34b89d98359ea04028

                            SHA256

                            b825114f3e6cacfc4807bba2825fd281930704ea56e977083fb5a48d6bd7e854

                            SHA512

                            6408b8141b37ece131359cb94a3a6d015119099a59473fa7d55cf5cfb1746178c0f40d32772d607ed872ff135f27a40971895a7687f92182a1d40dba9285e07c

                          • \Users\Admin\AppData\Local\Temp\4fcec31d-11e4-40a8-800a-5cc74688bd5f.tmp.node

                            Filesize

                            2.7MB

                            MD5

                            e72c7a160113e02f2154990f33eb444b

                            SHA1

                            631daf946d96a54ddb5b55b810e0643c488d2d5c

                            SHA256

                            25597c0ab98fe98ba9de6256e4aa6879a273fe9d475c8616e370d3334ba8b359

                            SHA512

                            3981a2bdf33f6c5cae8d7592aa23ab3f6462c3905b90b5ac5de5e8f7dee90c894c7a30dc227a7a8cce6c9567ad674b6fa839e3ac81cfeece6c71d2ab7e15de3f

                          • memory/2156-5-0x0000000000060000-0x0000000000061000-memory.dmp

                            Filesize

                            4KB

                          • memory/2156-38-0x00000000771E0000-0x00000000771E1000-memory.dmp

                            Filesize

                            4KB