Analysis

  • max time kernel
    134s
  • max time network
    155s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231215-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
  • submitted
    24-01-2024 05:37

General

  • Target

    y5573007.exe

  • Size

    1.3MB

  • MD5

    1dab5b16c54630ab6301e4862f8df0e0

  • SHA1

    56cbaa192dcdf768cf27651a6772f6aee68091e6

  • SHA256

    1877311823db6ba59449f0d4198c863b355270a0b939c3e2e3187007cfd1a78d

  • SHA512

    42f85dc712579577ff04c7bc54cf5c384058610e71bc89e6c282302c11be6d8ef8c004bf47c715f7e2999bd953e554f44abe74f2142fd97dccb9e4f2b458feea

  • SSDEEP

    24576:hyrM8ZC5Uq8G7ZaKyEpCAnszT82vCYF2oG1y2xeEVeTsWfLwzCY:UeUq8GFaKyEpPszT842FRxeEo

Malware Config

Extracted

Family

amadey

Version

3.87

C2

http://77.91.68.18

Attributes
  • install_dir

    b40d11255d

  • install_file

    saves.exe

  • strings_key

    fa622dfc42544927a6471829ee1fa9fe

  • url_paths

    /nice/index.php

rc4.plain

Extracted

Family

redline

Botnet

jang

C2

77.91.124.82:19071

Attributes
  • auth_value

    662102010afcbe9e22b13116b1c1a088

Signatures

  • Amadey

    Amadey bot is a simple trojan bot primarily used for collecting reconnaissance information.

  • Detect Mystic stealer payload 1 IoCs
  • Mystic

    Mystic is an infostealer written in C++.

  • RedLine

    RedLine Stealer is a malware family written in C#, first appearing in early 2020.

  • RedLine payload 2 IoCs
  • Checks computer location settings 2 TTPs 2 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Executes dropped EXE 8 IoCs
  • Adds Run key to start application 2 TTPs 3 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Creates scheduled task(s) 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Suspicious use of WriteProcessMemory 42 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\y5573007.exe
    "C:\Users\Admin\AppData\Local\Temp\y5573007.exe"
    1⤵
    • Adds Run key to start application
    • Suspicious use of WriteProcessMemory
    PID:4904
    • C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\y0320571.exe
      C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\y0320571.exe
      2⤵
      • Executes dropped EXE
      • Adds Run key to start application
      • Suspicious use of WriteProcessMemory
      PID:1856
      • C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\y3397747.exe
        C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\y3397747.exe
        3⤵
        • Executes dropped EXE
        • Adds Run key to start application
        • Suspicious use of WriteProcessMemory
        PID:3644
        • C:\Users\Admin\AppData\Local\Temp\IXP002.TMP\l9706125.exe
          C:\Users\Admin\AppData\Local\Temp\IXP002.TMP\l9706125.exe
          4⤵
          • Checks computer location settings
          • Executes dropped EXE
          • Suspicious use of WriteProcessMemory
          PID:1964
          • C:\Users\Admin\AppData\Local\Temp\b40d11255d\saves.exe
            "C:\Users\Admin\AppData\Local\Temp\b40d11255d\saves.exe"
            5⤵
            • Checks computer location settings
            • Executes dropped EXE
            • Suspicious use of WriteProcessMemory
            PID:2072
            • C:\Windows\SysWOW64\schtasks.exe
              "C:\Windows\System32\schtasks.exe" /Create /SC MINUTE /MO 1 /TN saves.exe /TR "C:\Users\Admin\AppData\Local\Temp\b40d11255d\saves.exe" /F
              6⤵
              • Creates scheduled task(s)
              PID:8
            • C:\Windows\SysWOW64\cmd.exe
              "C:\Windows\System32\cmd.exe" /k echo Y|CACLS "saves.exe" /P "Admin:N"&&CACLS "saves.exe" /P "Admin:R" /E&&echo Y|CACLS "..\b40d11255d" /P "Admin:N"&&CACLS "..\b40d11255d" /P "Admin:R" /E&&Exit
              6⤵
              • Suspicious use of WriteProcessMemory
              PID:2528
              • C:\Windows\SysWOW64\cacls.exe
                CACLS "saves.exe" /P "Admin:N"
                7⤵
                  PID:920
                • C:\Windows\SysWOW64\cmd.exe
                  C:\Windows\system32\cmd.exe /S /D /c" echo Y"
                  7⤵
                    PID:3648
                  • C:\Windows\SysWOW64\cacls.exe
                    CACLS "saves.exe" /P "Admin:R" /E
                    7⤵
                      PID:4888
                    • C:\Windows\SysWOW64\cmd.exe
                      C:\Windows\system32\cmd.exe /S /D /c" echo Y"
                      7⤵
                        PID:3496
                      • C:\Windows\SysWOW64\cacls.exe
                        CACLS "..\b40d11255d" /P "Admin:N"
                        7⤵
                          PID:5080
                        • C:\Windows\SysWOW64\cacls.exe
                          CACLS "..\b40d11255d" /P "Admin:R" /E
                          7⤵
                            PID:1564
                    • C:\Users\Admin\AppData\Local\Temp\IXP002.TMP\m4012392.exe
                      C:\Users\Admin\AppData\Local\Temp\IXP002.TMP\m4012392.exe
                      4⤵
                      • Executes dropped EXE
                      PID:3508
                  • C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\n0933183.exe
                    C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\n0933183.exe
                    3⤵
                    • Executes dropped EXE
                    PID:3092
              • C:\Users\Admin\AppData\Local\Temp\b40d11255d\saves.exe
                C:\Users\Admin\AppData\Local\Temp\b40d11255d\saves.exe
                1⤵
                • Executes dropped EXE
                PID:4284
              • C:\Users\Admin\AppData\Local\Temp\b40d11255d\saves.exe
                C:\Users\Admin\AppData\Local\Temp\b40d11255d\saves.exe
                1⤵
                • Executes dropped EXE
                PID:4580

              Network

              MITRE ATT&CK Enterprise v15

              Replay Monitor

              Loading Replay Monitor...

              Downloads

              • C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\y0320571.exe

                Filesize

                475KB

                MD5

                ba1c85e520d415fddd1417ffcd74b0f6

                SHA1

                a41da3bd4f2f742910ad2a728bc36f2947b0e82d

                SHA256

                7d4931e51585d1e364bfb34f1afb1cd05f1502ea152b9340916576bf0f5d5dc6

                SHA512

                5f00f855b08c85e7c82e7ae4b37a9e7f2692afb09080154a2b20a55d1422c44909084c0e539d854ac256aa7b97facce1df3892ba86c85b0775e990103d913151

              • C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\n0933183.exe

                Filesize

                174KB

                MD5

                2e47ffa00d8f4df0f9c9486bc478fcba

                SHA1

                ff133754d1851198ba550854fecc5a3463db0065

                SHA256

                534653d922fc4d6f4967befbbf83af8ddfa3982e3bca29b9274f0370945f7fb7

                SHA512

                da6115615b18432e373d09470769ea97bda084df573e751ff430dbada63736595aea8f943467e1bec91209bb37982bc296b7ff5c2dea9a2d207ea3242136eaab

              • C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\y3397747.exe

                Filesize

                319KB

                MD5

                adfb99d9e67648cedbf04b6f906bf667

                SHA1

                24c961b4c022701e1d426f9974255126b2ce1d09

                SHA256

                6f83c9db7d351f52f43214ecc83c2b188052ab0677a9368c91265b95759f7c38

                SHA512

                95010961110624767b2ff02914e02a433ae8ff5a2935d860caf2ee2f6c20982bb2fb5ec493bda608511504e89ed8e9ff39d2abff03ea83c50927bae4263107e1

              • C:\Users\Admin\AppData\Local\Temp\IXP002.TMP\l9706125.exe

                Filesize

                329KB

                MD5

                2d4e41efd3db85a992d313e56cb51345

                SHA1

                db3dea73b3e08d98da7697473890c6b74725280e

                SHA256

                b3996d6c396fde63249c938f4207f2172bd56c55eba8984f0ba589ec57924aa9

                SHA512

                ed796e2285516e0955c83119e7490fd4d03fc490ffc5406e5c3c4d427d9a3d4d3dd1e3c523e5ef3851bc0aef79c1aa99b120d2ce21c2244ca33210b20885c7fa

              • C:\Users\Admin\AppData\Local\Temp\IXP002.TMP\m4012392.exe

                Filesize

                140KB

                MD5

                9ee79745f1bd3aec20c71e60cbe12907

                SHA1

                798d7fdd9bf1c6f6dac8d03091a481251ba55561

                SHA256

                9d02d0be0ac9910c9ff48448f92c0bbe88e3dd18f723d6f2af86195c6e7bd7fe

                SHA512

                af7cb654ad18a76e038ac5cd2a4c3c30a1bee0bef7b32ff15162339fd3b042d40e0f5bcd3b689c1103c393158522b5e108c27b10c65739ae24b04dbf5ffc3a60

              • memory/3092-39-0x00000000054F0000-0x0000000005B08000-memory.dmp

                Filesize

                6.1MB

              • memory/3092-37-0x0000000072D30000-0x00000000734E0000-memory.dmp

                Filesize

                7.7MB

              • memory/3092-38-0x0000000002820000-0x0000000002826000-memory.dmp

                Filesize

                24KB

              • memory/3092-36-0x00000000003F0000-0x0000000000420000-memory.dmp

                Filesize

                192KB

              • memory/3092-40-0x0000000004FE0000-0x00000000050EA000-memory.dmp

                Filesize

                1.0MB

              • memory/3092-42-0x0000000004EC0000-0x0000000004ED0000-memory.dmp

                Filesize

                64KB

              • memory/3092-41-0x0000000004ED0000-0x0000000004EE2000-memory.dmp

                Filesize

                72KB

              • memory/3092-43-0x0000000004F30000-0x0000000004F6C000-memory.dmp

                Filesize

                240KB

              • memory/3092-44-0x0000000004F70000-0x0000000004FBC000-memory.dmp

                Filesize

                304KB

              • memory/3092-45-0x0000000072D30000-0x00000000734E0000-memory.dmp

                Filesize

                7.7MB

              • memory/3092-46-0x0000000004EC0000-0x0000000004ED0000-memory.dmp

                Filesize

                64KB