Analysis

  • max time kernel
    150s
  • max time network
    126s
  • platform
    windows7_x64
  • resource
    win7-20231215-en
  • resource tags

    arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
  • submitted
    26-12-2023 00:29

General

  • Target

    4679898201806dc6de8e98d5fe539ed2.dll

  • Size

    644KB

  • MD5

    4679898201806dc6de8e98d5fe539ed2

  • SHA1

    0b0a13522449f99f2e4eae9253700b542fca3461

  • SHA256

    b60b7a922e6e0e011f495a1be04333582f76e52ddabefa0b020ed51a0d263cde

  • SHA512

    62b61499c7f1c8acf7665d18941d4f3a9b0b34f7476921950f92040c251a9f00f4cf59d9859fa8c1960943d412230aa17eaa536f0883745b168101e148a29633

  • SSDEEP

    12288:ZKYQ5LL540CV3UIeLPrleV1F0e8gMA/9L0l3HATpKR4:AYQ5p4f0POF0nkls3opKR

Malware Config

Signatures

  • Dridex

    Dridex(known as Bugat/Cridex) is a form of malware that specializes in stealing bank credentials.

  • Dridex Shellcode 1 IoCs

    Detects Dridex Payload shellcode injected in Explorer process.

  • Loads dropped DLL 1 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Checks whether UAC is enabled 1 TTPs 1 IoCs
  • Drops file in System32 directory 2 IoCs
  • 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 64 IoCs
  • Suspicious use of WriteProcessMemory 30 IoCs
  • Uses Task Scheduler COM API 1 TTPs

    The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\4679898201806dc6de8e98d5fe539ed2.dll,#1
    1⤵
    • Checks whether UAC is enabled
    • Suspicious behavior: EnumeratesProcesses
    PID:2600
  • C:\Windows\system32\dccw.exe
    C:\Windows\system32\dccw.exe
    1⤵
      PID:2636
    • C:\Windows\system32\cmd.exe
      "C:\Windows\system32\cmd.exe" /c C:\Users\Admin\AppData\Local\Temp\0FgA1.cmd
      1⤵
        PID:2564
      • C:\Windows\system32\SystemPropertiesDataExecutionPrevention.exe
        C:\Windows\system32\SystemPropertiesDataExecutionPrevention.exe
        1⤵
          PID:2700
        • C:\Windows\system32\cmd.exe
          "C:\Windows\system32\cmd.exe" /c C:\Users\Admin\AppData\Local\Temp\luhNUw.cmd
          1⤵
          • Drops file in System32 directory
          PID:2792
        • C:\Windows\system32\schtasks.exe
          "C:\Windows\system32\schtasks.exe" /Create /F /TN "Taqnqntix" /TR "C:\Windows\system32\bKA9EJ\SystemPropertiesDataExecutionPrevention.exe" /SC minute /MO 60 /RL highest
          1⤵
          • Creates scheduled task(s)
          PID:2900
        • C:\Windows\system32\schtasks.exe
          C:\Windows\system32\schtasks.exe /Query /TN "Taqnqntix"
          1⤵
            PID:1844
          • C:\Windows\system32\schtasks.exe
            C:\Windows\system32\schtasks.exe /Query /TN "Taqnqntix"
            1⤵
              PID:2020
            • C:\Windows\system32\schtasks.exe
              C:\Windows\system32\schtasks.exe /Query /TN "Taqnqntix"
              1⤵
                PID:1852
              • C:\Windows\system32\schtasks.exe
                C:\Windows\system32\schtasks.exe /Query /TN "Taqnqntix"
                1⤵
                  PID:1760
                • C:\Windows\system32\schtasks.exe
                  C:\Windows\system32\schtasks.exe /Query /TN "Taqnqntix"
                  1⤵
                    PID:396

                  Network

                  MITRE ATT&CK Enterprise v15

                  Replay Monitor

                  Loading Replay Monitor...

                  Downloads

                  • C:\Users\Admin\AppData\Local\Temp\0FgA1.cmd

                    Filesize

                    226B

                    MD5

                    44ef23122f9c6882172880580c3a9bd2

                    SHA1

                    9c6724bd938055cbecebb960994a7306ac2e0823

                    SHA256

                    1af4c5f60134c972014575aa65709648b21b67cd641908625122d04e2ab7a5a9

                    SHA512

                    38f60c31b6509629a94d5cc29a90b40b7dd898c59ec9937ff7432a140a2e3918ec1e51e2929507e46fc7dcbc50185e40a311c77c3ac8a00a726bc120d058840c

                  • C:\Users\Admin\AppData\Local\Temp\0IBC6D.tmp

                    Filesize

                    648KB

                    MD5

                    3ba00bb27baf3a06c49ed976d63a7e08

                    SHA1

                    356efc33877ca7cdd85e0188f4a76f3b9cd01b0a

                    SHA256

                    db299ecba0e57ddd72befafec1125bb7502232517cd60228aac4af8c6a33a494

                    SHA512

                    47e86386f9183c0bc5cfecaa19df13f4cc848c6f658ac2a342befbbc47cf8f10d360ff870accb724dbeec04cc057430fa8391d5bb0199b3310405fd9613369ca

                  • C:\Users\Admin\AppData\Local\Temp\J8CC5.tmp

                    Filesize

                    648KB

                    MD5

                    cda3d6b59074eed08ae89a3735c6a736

                    SHA1

                    0eaec007c3d670dd196029a6fd23245e0c4175e8

                    SHA256

                    86692bb36b0f8ed48076625e114804106ee01635ab889ae1e7e62462eb735b77

                    SHA512

                    050e09608eadde801217724082d83a23235cf2b5c2e6d06c19584e004ea0ea56548987608612f35f9ea7bed1436b53823b2aa7ca73927f0b930b23041a544b20

                  • C:\Users\Admin\AppData\Local\Temp\luhNUw.cmd

                    Filesize

                    229B

                    MD5

                    f08ca0cadd065ffb3995794e4836930c

                    SHA1

                    ef2e6971d53f6d0f701ae49a64bf8d754bcb4e1f

                    SHA256

                    431c39141868840b9fd09bb6d56f6f1065e2f6b6def1bb9d6a426c4fd3deabc4

                    SHA512

                    e37c9a68bee0a44ae2595ea9f81c700a0ac40c02a67a87500882a56cfa6fc9b8c85b442dcada5438ce64166918821eff3bb1fa8c5288c8534ef3d202db1f2dc2

                  • C:\Users\Admin\AppData\Roaming\5O2Cgz\dccw.exe

                    Filesize

                    861KB

                    MD5

                    a46cee731351eb4146db8e8a63a5c520

                    SHA1

                    8ea441e4a77642e12987ac842b36034230edd731

                    SHA256

                    283526a98a83524d21ff23f9109754c6587380b67f74cc02a9a4cd56fdb720d5

                    SHA512

                    3573c0ae21406db0c6fdda7c065fabde03235bde7f5589910822500bdfa37144f59f6e58e753e7347b899998db1dcb28050ac5a4e2c611558ae5fa405fbbc5cc

                  • C:\Users\Admin\AppData\Roaming\MICROS~1\Windows\STARTM~1\Programs\Startup\Niubkzso.lnk

                    Filesize

                    776B

                    MD5

                    3e3b29b4c915d23f0dc2907e6314c66c

                    SHA1

                    c8425f92e910e329e85869cdba9cd32f5f206831

                    SHA256

                    876a2117d85eb40da0dfd84e399acd22b22d3797f63123f0529fd5047ce6776e

                    SHA512

                    cd5acb9340c46d875555b307eddc89f458c3994268a6a84ac24a89791745a8918233a65e14f25d51190ce11916ac742a3056049367991061134e233b7c018687

                  • memory/1184-13-0x0000000140000000-0x00000001400A1000-memory.dmp

                    Filesize

                    644KB

                  • memory/1184-11-0x0000000140000000-0x00000001400A1000-memory.dmp

                    Filesize

                    644KB

                  • memory/1184-22-0x00000000029D0000-0x00000000029D7000-memory.dmp

                    Filesize

                    28KB

                  • memory/1184-19-0x0000000140000000-0x00000001400A1000-memory.dmp

                    Filesize

                    644KB

                  • memory/1184-20-0x0000000140000000-0x00000001400A1000-memory.dmp

                    Filesize

                    644KB

                  • memory/1184-18-0x0000000140000000-0x00000001400A1000-memory.dmp

                    Filesize

                    644KB

                  • memory/1184-17-0x0000000140000000-0x00000001400A1000-memory.dmp

                    Filesize

                    644KB

                  • memory/1184-31-0x0000000077C90000-0x0000000077C92000-memory.dmp

                    Filesize

                    8KB

                  • memory/1184-16-0x0000000140000000-0x00000001400A1000-memory.dmp

                    Filesize

                    644KB

                  • memory/1184-14-0x0000000140000000-0x00000001400A1000-memory.dmp

                    Filesize

                    644KB

                  • memory/1184-3-0x0000000077926000-0x0000000077927000-memory.dmp

                    Filesize

                    4KB

                  • memory/1184-40-0x0000000140000000-0x00000001400A1000-memory.dmp

                    Filesize

                    644KB

                  • memory/1184-12-0x0000000140000000-0x00000001400A1000-memory.dmp

                    Filesize

                    644KB

                  • memory/1184-29-0x0000000140000000-0x00000001400A1000-memory.dmp

                    Filesize

                    644KB

                  • memory/1184-9-0x0000000140000000-0x00000001400A1000-memory.dmp

                    Filesize

                    644KB

                  • memory/1184-10-0x0000000140000000-0x00000001400A1000-memory.dmp

                    Filesize

                    644KB

                  • memory/1184-8-0x0000000140000000-0x00000001400A1000-memory.dmp

                    Filesize

                    644KB

                  • memory/1184-15-0x0000000140000000-0x00000001400A1000-memory.dmp

                    Filesize

                    644KB

                  • memory/1184-6-0x0000000140000000-0x00000001400A1000-memory.dmp

                    Filesize

                    644KB

                  • memory/1184-4-0x00000000029F0000-0x00000000029F1000-memory.dmp

                    Filesize

                    4KB

                  • memory/1184-45-0x0000000140000000-0x00000001400A1000-memory.dmp

                    Filesize

                    644KB

                  • memory/1184-30-0x0000000077B31000-0x0000000077B32000-memory.dmp

                    Filesize

                    4KB

                  • memory/1184-23-0x0000000140000000-0x00000001400A1000-memory.dmp

                    Filesize

                    644KB

                  • memory/1184-57-0x0000000077926000-0x0000000077927000-memory.dmp

                    Filesize

                    4KB

                  • memory/1184-21-0x0000000140000000-0x00000001400A1000-memory.dmp

                    Filesize

                    644KB

                  • memory/2600-7-0x000007FEF79B0000-0x000007FEF7A51000-memory.dmp

                    Filesize

                    644KB

                  • memory/2600-0-0x000007FEF79B0000-0x000007FEF7A51000-memory.dmp

                    Filesize

                    644KB

                  • memory/2600-1-0x0000000000190000-0x0000000000197000-memory.dmp

                    Filesize

                    28KB