Analysis

  • max time kernel
    26s
  • max time network
    112s
  • platform
    windows10_x64
  • resource
    win10v20210408
  • submitted
    26-06-2021 10:04

General

  • Target

    3d5f9670d7c7b0178fcd9c238096d4e7a1501e57694247075404eac9768a5f6a.dll

  • Size

    160KB

  • MD5

    a016af460ccd7c334cb4faad9bf57537

  • SHA1

    04388847dad4e47bbdcabb26acf6481ee24d452f

  • SHA256

    3d5f9670d7c7b0178fcd9c238096d4e7a1501e57694247075404eac9768a5f6a

  • SHA512

    fb00cd7ea6adf90c7122e00e4d61f379016b670a6537928c401ffad50a5188f121b3afa90f139cf0516a6fac5923d3b7a4a0995331a72674e2082c4d80e96f7d

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 3 IoCs

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\3d5f9670d7c7b0178fcd9c238096d4e7a1501e57694247075404eac9768a5f6a.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:532
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\3d5f9670d7c7b0178fcd9c238096d4e7a1501e57694247075404eac9768a5f6a.dll,#1
      2⤵
      • Checks whether UAC is enabled
      PID:3988

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • memory/3988-114-0x0000000000000000-mapping.dmp

  • memory/3988-115-0x0000000074390000-0x00000000743BE000-memory.dmp

    Filesize

    184KB

  • memory/3988-117-0x0000000002D50000-0x0000000002DFE000-memory.dmp

    Filesize

    696KB