Analysis

  • max time kernel
    26s
  • max time network
    68s
  • platform
    windows10_x64
  • resource
    win10v20210408
  • submitted
    29-06-2021 05:56

General

  • Target

    2b1b1c0031933bc14f3ba8920df850e3bcf3e27ba0677cf8b9ade3088e956f74.dll

  • Size

    162KB

  • MD5

    fcb6fa8d26a77c19ee5ce757dd67fe73

  • SHA1

    c51a385a5a2f407e72e9cbe796a8dc2303d098c5

  • SHA256

    2b1b1c0031933bc14f3ba8920df850e3bcf3e27ba0677cf8b9ade3088e956f74

  • SHA512

    77ad334baf193dcb701ca14dc19e1c842a8b7c54e961214e88bf16d1d4ebf315f23cb18a63a4a05da3b421f2a9e2dba42319186bbb630c4a3dd39b9b7d672227

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\2b1b1c0031933bc14f3ba8920df850e3bcf3e27ba0677cf8b9ade3088e956f74.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:528
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\2b1b1c0031933bc14f3ba8920df850e3bcf3e27ba0677cf8b9ade3088e956f74.dll,#1
      2⤵
      • Checks whether UAC is enabled
      PID:360

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • memory/360-114-0x0000000000000000-mapping.dmp

  • memory/360-115-0x00000000735F0000-0x000000007361E000-memory.dmp

    Filesize

    184KB

  • memory/360-117-0x00000000032D0000-0x00000000032D6000-memory.dmp

    Filesize

    24KB