Analysis

  • max time kernel
    160s
  • max time network
    169s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    10-05-2024 15:13

General

  • Target

    00dc3a43dda255a61bd370ebbf0fc0431112da3c176a205489b4a2113c396878.exe

  • Size

    390KB

  • MD5

    b98729272c6d4df3a64402281ace8eb9

  • SHA1

    e7085276b6444b67bafa946b8dc7d97cb9724481

  • SHA256

    00dc3a43dda255a61bd370ebbf0fc0431112da3c176a205489b4a2113c396878

  • SHA512

    51119438a29cea3ec18fc0196016d1eb4e61a9c97b198704251cb5ce762cced3257a6fb62d7c7be76f0eb60ae0cb551d31bc946f3bef89f4f3242be910b39229

  • SSDEEP

    6144:Kiy+bnr+4p0yN90QEgIDkih24KNWnnVOYvWUo/+K1DEn0q9qkzlM4uM:SMrIy90+IJKNcOb/+K2nzokzlMM

Malware Config

Extracted

Family

amadey

Version

3.86

C2

http://5.42.92.67

Attributes
  • install_dir

    ebb444342c

  • install_file

    legola.exe

  • strings_key

    5680b049188ecacbfa57b1b29c2f35a7

  • url_paths

    /norm/index.php

rc4.plain

Extracted

Family

redline

Botnet

krast

C2

77.91.68.68:19071

Attributes
  • auth_value

    9059ea331e4599de3746df73ccb24514

Signatures

  • Amadey

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

  • Detects Healer an antivirus disabler dropper 2 IoCs
  • Healer

    Healer an antivirus disabler dropper.

  • Modifies Windows Defender Real-time Protection settings 3 TTPs 6 IoCs
  • 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
  • Windows security modification 2 TTPs 1 IoCs
  • Adds Run key to start application 2 TTPs 2 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 behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of WriteProcessMemory 38 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\00dc3a43dda255a61bd370ebbf0fc0431112da3c176a205489b4a2113c396878.exe
    "C:\Users\Admin\AppData\Local\Temp\00dc3a43dda255a61bd370ebbf0fc0431112da3c176a205489b4a2113c396878.exe"
    1⤵
    • Adds Run key to start application
    • Suspicious use of WriteProcessMemory
    PID:2432
    • C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\z4914129.exe
      C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\z4914129.exe
      2⤵
      • Executes dropped EXE
      • Adds Run key to start application
      • Suspicious use of WriteProcessMemory
      PID:3448
      • C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\p1338143.exe
        C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\p1338143.exe
        3⤵
        • Modifies Windows Defender Real-time Protection settings
        • Executes dropped EXE
        • Windows security modification
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:732
      • C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\r8000492.exe
        C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\r8000492.exe
        3⤵
        • Checks computer location settings
        • Executes dropped EXE
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of WriteProcessMemory
        PID:4264
        • C:\Users\Admin\AppData\Local\Temp\ebb444342c\legola.exe
          "C:\Users\Admin\AppData\Local\Temp\ebb444342c\legola.exe"
          4⤵
          • Checks computer location settings
          • Executes dropped EXE
          • Suspicious use of WriteProcessMemory
          PID:4444
          • C:\Windows\SysWOW64\schtasks.exe
            "C:\Windows\System32\schtasks.exe" /Create /SC MINUTE /MO 1 /TN legola.exe /TR "C:\Users\Admin\AppData\Local\Temp\ebb444342c\legola.exe" /F
            5⤵
            • Creates scheduled task(s)
            PID:3544
          • C:\Windows\SysWOW64\cmd.exe
            "C:\Windows\System32\cmd.exe" /k echo Y|CACLS "legola.exe" /P "Admin:N"&&CACLS "legola.exe" /P "Admin:R" /E&&echo Y|CACLS "..\ebb444342c" /P "Admin:N"&&CACLS "..\ebb444342c" /P "Admin:R" /E&&Exit
            5⤵
            • Suspicious use of WriteProcessMemory
            PID:4784
            • C:\Windows\SysWOW64\cmd.exe
              C:\Windows\system32\cmd.exe /S /D /c" echo Y"
              6⤵
                PID:4996
              • C:\Windows\SysWOW64\cacls.exe
                CACLS "legola.exe" /P "Admin:N"
                6⤵
                  PID:3308
                • C:\Windows\SysWOW64\cacls.exe
                  CACLS "legola.exe" /P "Admin:R" /E
                  6⤵
                    PID:3968
                  • C:\Windows\SysWOW64\cmd.exe
                    C:\Windows\system32\cmd.exe /S /D /c" echo Y"
                    6⤵
                      PID:4144
                    • C:\Windows\SysWOW64\cacls.exe
                      CACLS "..\ebb444342c" /P "Admin:N"
                      6⤵
                        PID:3212
                      • C:\Windows\SysWOW64\cacls.exe
                        CACLS "..\ebb444342c" /P "Admin:R" /E
                        6⤵
                          PID:3104
                • C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\t6075708.exe
                  C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\t6075708.exe
                  2⤵
                  • Executes dropped EXE
                  PID:2628
              • C:\Users\Admin\AppData\Local\Temp\ebb444342c\legola.exe
                C:\Users\Admin\AppData\Local\Temp\ebb444342c\legola.exe
                1⤵
                • Executes dropped EXE
                PID:3504
              • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=3936 --field-trial-handle=2744,i,16362475727591565961,3676688664819797550,262144 --variations-seed-version /prefetch:8
                1⤵
                  PID:2904
                • C:\Users\Admin\AppData\Local\Temp\ebb444342c\legola.exe
                  C:\Users\Admin\AppData\Local\Temp\ebb444342c\legola.exe
                  1⤵
                  • Executes dropped EXE
                  PID:2568
                • C:\Users\Admin\AppData\Local\Temp\ebb444342c\legola.exe
                  C:\Users\Admin\AppData\Local\Temp\ebb444342c\legola.exe
                  1⤵
                  • Executes dropped EXE
                  PID:2336

                Network

                MITRE ATT&CK Enterprise v15

                Replay Monitor

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                Downloads

                • C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\t6075708.exe

                  Filesize

                  174KB

                  MD5

                  8da782a1b6654af76b13201fd64b998b

                  SHA1

                  ff9964fe94e4e2af8426b0c011cb47235b58eaee

                  SHA256

                  a1f40df21d5d45e6ecf8cd80b567eb002cbc3895c527519d23d0d86dfb7dbc77

                  SHA512

                  0d76b25034788ca9c8ef2896ba5b2c2a3b82e8d73bbfc4c8c426bdfc85a9ef93dc088660867d426de740e35d83bb5f5f75a8012bfb37456612a3f6d3a3e52545

                • C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\z4914129.exe

                  Filesize

                  234KB

                  MD5

                  f2ff1b96e7ad02a8fec772d48caaefb2

                  SHA1

                  3567d0d7c6fcc186af300490f1d4ea777cbfefef

                  SHA256

                  cb8148d39bb144e32c8e4eced6081e2a11f162e1c8061de3096c652aa64bc652

                  SHA512

                  04b7c0e07bb249010c21725ddbcc4267b4ec2b09a2cd16c031719d6d17c8d8ecaf03e9ffb4d154c407bbe8c5ec567e8484185fad5a8bcb77576d6a101dd48a2d

                • C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\p1338143.exe

                  Filesize

                  11KB

                  MD5

                  2daf21140ef736623a838840c7d683c6

                  SHA1

                  9e44e8e94072bec6aee371de55a6ba5bd82d2129

                  SHA256

                  29d231389bb9d6ee847960edfbe9be3e4dd4e4910891c06052c31a0568aa10e6

                  SHA512

                  c48b3a4936ff03c838e047b5c623fbd2663a613af9fcd3d973fdd564e0819d977d2c86631319bb4dd4155b255cdca4328c6ee7370ccafae9159b880cd971c256

                • C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\r8000492.exe

                  Filesize

                  223KB

                  MD5

                  f15b4c2bcdedc878427d5fac4d89a541

                  SHA1

                  84f4b89b281e42b0b67e1a1c14347b1bd151a024

                  SHA256

                  daa7fdb4063dac06672ff968a5ba19922dd31b7f9c3800685a0ae1e10effebc9

                  SHA512

                  595c261a58b8bcbe99fe4200a2ea7b72baa8c270f322adbd013e345c7d4f21e391d315db98d35db24fb24290f054e9df2cd150dd90e2ab0505ca29a3f5c14003

                • memory/732-14-0x00007FF82D943000-0x00007FF82D945000-memory.dmp

                  Filesize

                  8KB

                • memory/732-15-0x00000000005F0000-0x00000000005FA000-memory.dmp

                  Filesize

                  40KB

                • memory/2628-33-0x0000000000E70000-0x0000000000EA0000-memory.dmp

                  Filesize

                  192KB

                • memory/2628-34-0x0000000003440000-0x0000000003446000-memory.dmp

                  Filesize

                  24KB

                • memory/2628-36-0x0000000005F30000-0x0000000006548000-memory.dmp

                  Filesize

                  6.1MB

                • memory/2628-37-0x0000000005A20000-0x0000000005B2A000-memory.dmp

                  Filesize

                  1.0MB

                • memory/2628-38-0x0000000005940000-0x0000000005952000-memory.dmp

                  Filesize

                  72KB

                • memory/2628-39-0x00000000059A0000-0x00000000059DC000-memory.dmp

                  Filesize

                  240KB

                • memory/2628-40-0x0000000005B30000-0x0000000005B7C000-memory.dmp

                  Filesize

                  304KB