Analysis

  • max time kernel
    310s
  • max time network
    320s
  • platform
    windows7_x64
  • resource
    win7-20241010-en
  • resource tags

    arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
  • submitted
    18/03/2025, 04:45

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.

  • Epsilon family
  • 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 3 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Looks up external IP address via web service 2 IoCs

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

  • Enumerates processes with tasklist 1 TTPs 1 IoCs
  • Event Triggered Execution: Netsh Helper DLL 1 TTPs 3 IoCs

    Netsh.exe (also referred to as Netshell) is a command-line scripting utility used to interact with the network configuration of a system.

  • System Network Configuration Discovery: Wi-Fi Discovery 1 TTPs 2 IoCs

    Adversaries may search for information about Wi-Fi networks, such as network names and passwords, on compromised systems.

  • Detects videocard installed 1 TTPs 1 IoCs

    Uses WMIC.exe to determine videocard installed.

  • 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:2224
    • C:\Windows\system32\cmd.exe
      C:\Windows\system32\cmd.exe /d /s /c "wmic CsProduct Get UUID"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2692
      • C:\Windows\System32\Wbem\WMIC.exe
        wmic CsProduct Get UUID
        3⤵
        • Suspicious use of AdjustPrivilegeToken
        PID:2840
    • C:\Users\Admin\AppData\Local\Temp\azkzkzz.exe
      "C:\Users\Admin\AppData\Local\Temp\azkzkzz.exe" --type=gpu-process --field-trial-handle=1088,3025942571488628876,6882250171852233893,131072 --disable-features=SpareRendererForSitePerProcess,WinRetrieveSuggestionsOnlyOnDemand --user-data-dir="C:\Users\Admin\AppData\Roaming\azkzkzz" --gpu-preferences=UAAAAAAAAADgAAAIAAAAAAAAAAAAAAAAAABgAAAAAAAwAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAHgAAAAAAAAAeAAAAAAAAAAoAAAABAAAACAAAAAAAAAAKAAAAAAAAAAwAAAAAAAAADgAAAAAAAAAEAAAAAAAAAAAAAAADQAAABAAAAAAAAAAAQAAAA0AAAAQAAAAAAAAAAQAAAANAAAAEAAAAAAAAAAHAAAADQAAAAgAAAAAAAAACAAAAAAAAAA= --mojo-platform-channel-handle=1108 /prefetch:2
      2⤵
        PID:876
      • C:\Users\Admin\AppData\Local\Temp\azkzkzz.exe
        "C:\Users\Admin\AppData\Local\Temp\azkzkzz.exe" --type=gpu-process --field-trial-handle=1088,3025942571488628876,6882250171852233893,131072 --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=1336 /prefetch:2
        2⤵
          PID:2444
        • 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:1104
            • C:\Windows\system32\reg.exe
              C:\Windows\system32\reg.exe QUERY "HKCU\SOFTWARE\Martin Prikryl\WinSCP 2\Sessions"
              3⤵
                PID:2416
            • 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:772
                • C:\Windows\system32\reg.exe
                  C:\Windows\system32\reg.exe QUERY "HKCU\Software\Valve\Steam" /v SteamPath
                  3⤵
                    PID:2376
                • C:\Windows\system32\cmd.exe
                  C:\Windows\system32\cmd.exe /d /s /c "tasklist"
                  2⤵
                    PID:2032
                    • C:\Windows\system32\tasklist.exe
                      tasklist
                      3⤵
                      • Enumerates processes with tasklist
                      • Suspicious use of AdjustPrivilegeToken
                      PID:1316
                  • 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:2752
                      • C:\Windows\System32\Wbem\WMIC.exe
                        wmic /Node:localhost /Namespace:\\root\SecurityCenter2 Path AntiVirusProduct Get displayName /Format:List
                        3⤵
                        • Suspicious use of AdjustPrivilegeToken
                        PID:980
                    • C:\Windows\system32\cmd.exe
                      C:\Windows\system32\cmd.exe /d /s /c "wmic path win32_VideoController get name"
                      2⤵
                        PID:956
                        • C:\Windows\System32\Wbem\WMIC.exe
                          wmic path win32_VideoController get name
                          3⤵
                          • Detects videocard installed
                          PID:912
                      • C:\Windows\system32\cmd.exe
                        C:\Windows\system32\cmd.exe /d /s /c "cmd /c chcp 65001>nul && netsh wlan show profiles"
                        2⤵
                        • System Network Configuration Discovery: Wi-Fi Discovery
                        PID:3016
                        • C:\Windows\system32\cmd.exe
                          cmd /c chcp 65001
                          3⤵
                            PID:1492
                            • C:\Windows\system32\chcp.com
                              chcp 65001
                              4⤵
                                PID:1872
                            • C:\Windows\system32\netsh.exe
                              netsh wlan show profiles
                              3⤵
                              • Event Triggered Execution: Netsh Helper DLL
                              • System Network Configuration Discovery: Wi-Fi Discovery
                              PID:1772
                          • 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=1088,3025942571488628876,6882250171852233893,131072 --disable-features=SpareRendererForSitePerProcess,WinRetrieveSuggestionsOnlyOnDemand --lang=en-US --service-sandbox-type=none --user-data-dir="C:\Users\Admin\AppData\Roaming\azkzkzz" --mojo-platform-channel-handle=1568 /prefetch:8
                            2⤵
                            • Suspicious behavior: EnumeratesProcesses
                            PID:296

                        Network

                        MITRE ATT&CK Enterprise v15

                        Replay Monitor

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                        Downloads

                        • 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\1500431d-ad69-4335-a094-3c5ae29ce3bc.tmp.node

                          Filesize

                          652KB

                          MD5

                          c5c6631f2706203785a1880d748869e9

                          SHA1

                          5f80f6e68168b19d5bdca53e568b3e0584688383

                          SHA256

                          60932f76ed62a1ab950663dda8ba07ca47e2ba6b7c2caf29884c42e0901ce8c8

                          SHA512

                          58b65a7063d990b0becb7e9dbebe56cf16d8d626e0be175be59c52fe8718d2646b9e3318c11261c133a85e0006de59238430c843e244093f32a894244d8400b4

                        • \Users\Admin\AppData\Local\Temp\a9041b9d-5f6a-4606-aea9-ee2ae2ff1328.tmp.node

                          Filesize

                          2.7MB

                          MD5

                          e0ff0b488af11e33ee8016f7f0cffeae

                          SHA1

                          1c9d8c97db2bb7f163aa30caddd4a4a3c870cf9e

                          SHA256

                          70bcf19069421a1ebb01f7adc10cca544c8960a4575bd37f80e79762b9b9be81

                          SHA512

                          a0e0cf3dd68bae4d7e20f19411e65603900c87788b3ea146f53d2f8bf9bb1deb214b4f0bad6e26c35392d1899f002789668203ed148b95ff74a269c07f94f0d8

                        • memory/876-5-0x0000000000060000-0x0000000000061000-memory.dmp

                          Filesize

                          4KB

                        • memory/876-37-0x0000000076FF0000-0x0000000076FF1000-memory.dmp

                          Filesize

                          4KB