Analysis

  • max time kernel
    146s
  • max time network
    149s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231222-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231222-enlocale:en-usos:windows10-2004-x64system
  • submitted
    23-01-2024 21:25

General

  • Target

    WEXTRACT.exe

  • Size

    1.4MB

  • MD5

    d9dce3b43103ba7c9c7993a1a4f5070b

  • SHA1

    0c6b82c436aff245a1c3a5bab3947de41b52744c

  • SHA256

    7f0325d4217054cdab8d35ac1adb47ba8ea7e2ec01b7dda452e65d0dc742dc2f

  • SHA512

    c12a4a6ffedf54149ec732dbc915e12845ee82874c4b248b8ce3131b912e96ae3c5ea981b50905c99f7f34539f6f499754a8fc8c3f93a4a07bb19f572d6e98e8

  • SSDEEP

    24576:2y4AfNrEEEY3Uk8I7ZLKySp0Hu4dWMnYYDWSiJzqMtx15T/T8PwLyxC+:F4AfhNUk8IFLKySpggxJNx15R

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 9 IoCs
  • Adds Run key to start application 2 TTPs 4 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 45 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\WEXTRACT.exe
    "C:\Users\Admin\AppData\Local\Temp\WEXTRACT.exe"
    1⤵
    • Adds Run key to start application
    • Suspicious use of WriteProcessMemory
    PID:4288
    • C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\y5573007.exe
      C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\y5573007.exe
      2⤵
      • Executes dropped EXE
      • Adds Run key to start application
      • Suspicious use of WriteProcessMemory
      PID:540
      • C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\y0320571.exe
        C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\y0320571.exe
        3⤵
        • Executes dropped EXE
        • Adds Run key to start application
        • Suspicious use of WriteProcessMemory
        PID:2372
        • C:\Users\Admin\AppData\Local\Temp\IXP002.TMP\y3397747.exe
          C:\Users\Admin\AppData\Local\Temp\IXP002.TMP\y3397747.exe
          4⤵
          • Executes dropped EXE
          • Adds Run key to start application
          • Suspicious use of WriteProcessMemory
          PID:4872
          • C:\Users\Admin\AppData\Local\Temp\IXP003.TMP\l9706125.exe
            C:\Users\Admin\AppData\Local\Temp\IXP003.TMP\l9706125.exe
            5⤵
            • Checks computer location settings
            • Executes dropped EXE
            • Suspicious use of WriteProcessMemory
            PID:4620
            • C:\Users\Admin\AppData\Local\Temp\b40d11255d\saves.exe
              "C:\Users\Admin\AppData\Local\Temp\b40d11255d\saves.exe"
              6⤵
              • Checks computer location settings
              • Executes dropped EXE
              • Suspicious use of WriteProcessMemory
              PID:2940
              • 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
                7⤵
                • Creates scheduled task(s)
                PID:2936
              • 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
                7⤵
                • Suspicious use of WriteProcessMemory
                PID:3084
                • C:\Windows\SysWOW64\cmd.exe
                  C:\Windows\system32\cmd.exe /S /D /c" echo Y"
                  8⤵
                    PID:3984
                  • C:\Windows\SysWOW64\cacls.exe
                    CACLS "saves.exe" /P "Admin:N"
                    8⤵
                      PID:2540
                    • C:\Windows\SysWOW64\cacls.exe
                      CACLS "saves.exe" /P "Admin:R" /E
                      8⤵
                        PID:1136
                      • C:\Windows\SysWOW64\cmd.exe
                        C:\Windows\system32\cmd.exe /S /D /c" echo Y"
                        8⤵
                          PID:4184
                        • C:\Windows\SysWOW64\cacls.exe
                          CACLS "..\b40d11255d" /P "Admin:N"
                          8⤵
                            PID:1384
                          • C:\Windows\SysWOW64\cacls.exe
                            CACLS "..\b40d11255d" /P "Admin:R" /E
                            8⤵
                              PID:4664
                      • C:\Users\Admin\AppData\Local\Temp\IXP003.TMP\m4012392.exe
                        C:\Users\Admin\AppData\Local\Temp\IXP003.TMP\m4012392.exe
                        5⤵
                        • Executes dropped EXE
                        PID:3224
                    • C:\Users\Admin\AppData\Local\Temp\IXP002.TMP\n0933183.exe
                      C:\Users\Admin\AppData\Local\Temp\IXP002.TMP\n0933183.exe
                      4⤵
                      • Executes dropped EXE
                      PID:2760
              • C:\Users\Admin\AppData\Local\Temp\b40d11255d\saves.exe
                C:\Users\Admin\AppData\Local\Temp\b40d11255d\saves.exe
                1⤵
                • Executes dropped EXE
                PID:4460
              • C:\Users\Admin\AppData\Local\Temp\b40d11255d\saves.exe
                C:\Users\Admin\AppData\Local\Temp\b40d11255d\saves.exe
                1⤵
                • Executes dropped EXE
                PID:4416

              Network

              MITRE ATT&CK Enterprise v15

              Replay Monitor

              Loading Replay Monitor...

              Downloads

              • C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\y5573007.exe

                Filesize

                1.3MB

                MD5

                1dab5b16c54630ab6301e4862f8df0e0

                SHA1

                56cbaa192dcdf768cf27651a6772f6aee68091e6

                SHA256

                1877311823db6ba59449f0d4198c863b355270a0b939c3e2e3187007cfd1a78d

                SHA512

                42f85dc712579577ff04c7bc54cf5c384058610e71bc89e6c282302c11be6d8ef8c004bf47c715f7e2999bd953e554f44abe74f2142fd97dccb9e4f2b458feea

              • C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\y0320571.exe

                Filesize

                475KB

                MD5

                ba1c85e520d415fddd1417ffcd74b0f6

                SHA1

                a41da3bd4f2f742910ad2a728bc36f2947b0e82d

                SHA256

                7d4931e51585d1e364bfb34f1afb1cd05f1502ea152b9340916576bf0f5d5dc6

                SHA512

                5f00f855b08c85e7c82e7ae4b37a9e7f2692afb09080154a2b20a55d1422c44909084c0e539d854ac256aa7b97facce1df3892ba86c85b0775e990103d913151

              • C:\Users\Admin\AppData\Local\Temp\IXP002.TMP\n0933183.exe

                Filesize

                174KB

                MD5

                2e47ffa00d8f4df0f9c9486bc478fcba

                SHA1

                ff133754d1851198ba550854fecc5a3463db0065

                SHA256

                534653d922fc4d6f4967befbbf83af8ddfa3982e3bca29b9274f0370945f7fb7

                SHA512

                da6115615b18432e373d09470769ea97bda084df573e751ff430dbada63736595aea8f943467e1bec91209bb37982bc296b7ff5c2dea9a2d207ea3242136eaab

              • C:\Users\Admin\AppData\Local\Temp\IXP002.TMP\y3397747.exe

                Filesize

                319KB

                MD5

                adfb99d9e67648cedbf04b6f906bf667

                SHA1

                24c961b4c022701e1d426f9974255126b2ce1d09

                SHA256

                6f83c9db7d351f52f43214ecc83c2b188052ab0677a9368c91265b95759f7c38

                SHA512

                95010961110624767b2ff02914e02a433ae8ff5a2935d860caf2ee2f6c20982bb2fb5ec493bda608511504e89ed8e9ff39d2abff03ea83c50927bae4263107e1

              • C:\Users\Admin\AppData\Local\Temp\IXP003.TMP\l9706125.exe

                Filesize

                329KB

                MD5

                2d4e41efd3db85a992d313e56cb51345

                SHA1

                db3dea73b3e08d98da7697473890c6b74725280e

                SHA256

                b3996d6c396fde63249c938f4207f2172bd56c55eba8984f0ba589ec57924aa9

                SHA512

                ed796e2285516e0955c83119e7490fd4d03fc490ffc5406e5c3c4d427d9a3d4d3dd1e3c523e5ef3851bc0aef79c1aa99b120d2ce21c2244ca33210b20885c7fa

              • C:\Users\Admin\AppData\Local\Temp\IXP003.TMP\m4012392.exe

                Filesize

                140KB

                MD5

                9ee79745f1bd3aec20c71e60cbe12907

                SHA1

                798d7fdd9bf1c6f6dac8d03091a481251ba55561

                SHA256

                9d02d0be0ac9910c9ff48448f92c0bbe88e3dd18f723d6f2af86195c6e7bd7fe

                SHA512

                af7cb654ad18a76e038ac5cd2a4c3c30a1bee0bef7b32ff15162339fd3b042d40e0f5bcd3b689c1103c393158522b5e108c27b10c65739ae24b04dbf5ffc3a60

              • memory/2760-45-0x0000000003130000-0x0000000003136000-memory.dmp

                Filesize

                24KB

              • memory/2760-44-0x0000000072F20000-0x00000000736D0000-memory.dmp

                Filesize

                7.7MB

              • memory/2760-43-0x0000000000E00000-0x0000000000E30000-memory.dmp

                Filesize

                192KB

              • memory/2760-46-0x0000000005EE0000-0x00000000064F8000-memory.dmp

                Filesize

                6.1MB

              • memory/2760-48-0x00000000058E0000-0x00000000058F2000-memory.dmp

                Filesize

                72KB

              • memory/2760-49-0x00000000058B0000-0x00000000058C0000-memory.dmp

                Filesize

                64KB

              • memory/2760-47-0x00000000059D0000-0x0000000005ADA000-memory.dmp

                Filesize

                1.0MB

              • memory/2760-50-0x0000000005940000-0x000000000597C000-memory.dmp

                Filesize

                240KB

              • memory/2760-51-0x0000000005980000-0x00000000059CC000-memory.dmp

                Filesize

                304KB

              • memory/2760-52-0x0000000072F20000-0x00000000736D0000-memory.dmp

                Filesize

                7.7MB

              • memory/2760-53-0x00000000058B0000-0x00000000058C0000-memory.dmp

                Filesize

                64KB