Analysis

  • max time kernel
    25s
  • max time network
    66s
  • platform
    windows10_x64
  • resource
    win10v20210408
  • submitted
    29-06-2021 02:25

General

  • Target

    1c75a4bd7e519b953be156bdd8f5437013cae1b0a6d3c29035a552aae244b43b.dll

  • Size

    162KB

  • MD5

    2b5a6a2c597643692e3c3bdebf61992d

  • SHA1

    094d2c23f20fa80bc37d4e3d636bff20502cbdda

  • SHA256

    1c75a4bd7e519b953be156bdd8f5437013cae1b0a6d3c29035a552aae244b43b

  • SHA512

    f9cac0a6a4183e53e3fdc588b4ec316d718a2f9e7bf0b34746d803106c3ef55a6111f6d4d8e365a1d7613dbda0539b5c9c95e402e0d5dd3513fbdb6bdc508322

Malware Config

Extracted

Family

dridex

Botnet

40112

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\1c75a4bd7e519b953be156bdd8f5437013cae1b0a6d3c29035a552aae244b43b.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:904
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\1c75a4bd7e519b953be156bdd8f5437013cae1b0a6d3c29035a552aae244b43b.dll,#1
      2⤵
      • Checks whether UAC is enabled
      PID:1060

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • memory/1060-114-0x0000000000000000-mapping.dmp

  • memory/1060-115-0x0000000074160000-0x000000007418E000-memory.dmp

    Filesize

    184KB

  • memory/1060-117-0x0000000000B10000-0x0000000000B16000-memory.dmp

    Filesize

    24KB