Analysis

  • max time kernel
    50s
  • max time network
    50s
  • platform
    windows7_x64
  • resource
    win7v20210410
  • submitted
    21-04-2021 14:10

General

  • Target

    984e51118273305ffd06262f35a0549b52e85dbd9644666c613846715ab932fe.dll

  • Size

    158KB

  • MD5

    26962e187838653215cb16c2a370139d

  • SHA1

    55fee76ba6563e6c688dfb71672f15de4e94cafd

  • SHA256

    984e51118273305ffd06262f35a0549b52e85dbd9644666c613846715ab932fe

  • SHA512

    950c841b18fc56f63c72b7cc0fc58fb7e95fbff288f5510c23ed600486120d9e9ae7f37dffd92724d6457b8ed483dc947f37a012d33d700b47c95e5f9e7b4d56

Malware Config

Extracted

Family

dridex

Botnet

40112

C2

8.210.53.215:443

72.249.22.245:2303

188.40.137.206:8172

rc4.plain
rc4.plain

Signatures

  • Dridex

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

  • Dridex Loader 1 IoCs

    Detects Dridex both x86 and x64 loader in memory.

  • Checks whether UAC is enabled 1 TTPs 1 IoCs
  • Suspicious use of WriteProcessMemory 7 IoCs

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\984e51118273305ffd06262f35a0549b52e85dbd9644666c613846715ab932fe.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1240
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\984e51118273305ffd06262f35a0549b52e85dbd9644666c613846715ab932fe.dll,#1
      2⤵
      • Checks whether UAC is enabled
      PID:1636

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • memory/1636-59-0x0000000000000000-mapping.dmp

  • memory/1636-60-0x00000000752B1000-0x00000000752B3000-memory.dmp

    Filesize

    8KB

  • memory/1636-61-0x0000000074530000-0x000000007455D000-memory.dmp

    Filesize

    180KB

  • memory/1636-63-0x0000000000190000-0x0000000000196000-memory.dmp

    Filesize

    24KB