Analysis

  • max time kernel
    26s
  • max time network
    33s
  • platform
    windows10_x64
  • resource
    win10v20210408
  • submitted
    04-05-2021 15:23

General

  • Target

    370bfc8f90993b94707e5ffad3ed4885a5d18ed807f08f71f80da15247cfe932.dll

  • Size

    161KB

  • MD5

    c353e0354a03129060352f3ea31fac56

  • SHA1

    ab9ebe6eba76e84705a348810aabb0d823cb5c42

  • SHA256

    370bfc8f90993b94707e5ffad3ed4885a5d18ed807f08f71f80da15247cfe932

  • SHA512

    706178996e8f1c692fc6af2a2ae195a6385618d2ba1b07e5f9d84d317d61c0bf70eff2f61a811f7ccfb1d507386e70a4614a5614e7b4b9f815cb524d37548d02

Malware Config

Extracted

Family

dridex

Botnet

40111

C2

107.172.227.10:443

172.93.133.123:2303

108.168.61.147:8172

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 3 IoCs

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\370bfc8f90993b94707e5ffad3ed4885a5d18ed807f08f71f80da15247cfe932.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:584
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\370bfc8f90993b94707e5ffad3ed4885a5d18ed807f08f71f80da15247cfe932.dll,#1
      2⤵
      • Checks whether UAC is enabled
      PID:1764

Network

MITRE ATT&CK Matrix ATT&CK v6

Discovery

System Information Discovery

1
T1082

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/1764-114-0x0000000000000000-mapping.dmp
  • memory/1764-115-0x0000000073620000-0x000000007364E000-memory.dmp
    Filesize

    184KB

  • memory/1764-117-0x0000000000A20000-0x0000000000A26000-memory.dmp
    Filesize

    24KB