Analysis

  • max time kernel
    26s
  • max time network
    9s
  • platform
    windows7_x64
  • resource
    win7v20210410
  • submitted
    21-04-2021 15:03

General

  • Target

    65494e8cec2cb02632a6c5bfb6631806c54e6323543b0356bca4c64acf9b3c1c.dll

  • Size

    160KB

  • MD5

    e1cc9feb91d30697cbfd244351b07dc8

  • SHA1

    ceb5a34e40de959ecfb0a0b2bee297d98195de85

  • SHA256

    65494e8cec2cb02632a6c5bfb6631806c54e6323543b0356bca4c64acf9b3c1c

  • SHA512

    a32d3696bf36e7d87735af081e8def6a5ec5fc642e8bc5a7a0a4232d4261a2f0ce8f4a97e652553457a34d3351db16cb6cb7cc79eba4310e4f06d7351a61c849

Malware Config

Extracted

Family

dridex

Botnet

40111

C2

94.247.168.64:443

159.203.93.122:8172

50.116.27.97:2303

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\65494e8cec2cb02632a6c5bfb6631806c54e6323543b0356bca4c64acf9b3c1c.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1084
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\65494e8cec2cb02632a6c5bfb6631806c54e6323543b0356bca4c64acf9b3c1c.dll,#1
      2⤵
      • Checks whether UAC is enabled
      PID:1656

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • memory/1656-59-0x0000000000000000-mapping.dmp

  • memory/1656-60-0x00000000752F1000-0x00000000752F3000-memory.dmp

    Filesize

    8KB

  • memory/1656-61-0x0000000074E30000-0x0000000074E5E000-memory.dmp

    Filesize

    184KB

  • memory/1656-63-0x0000000000210000-0x0000000000216000-memory.dmp

    Filesize

    24KB