Analysis

  • max time kernel
    18s
  • max time network
    126s
  • platform
    windows10_x64
  • resource
    win10v20210410
  • submitted
    22-06-2021 12:37

General

  • Target

    b7cf62fe8702cd28f979acfccd17ce44b8c4a0d2a72b47e46348e9c1d98e3a05.dll

  • Size

    162KB

  • MD5

    2af7b10dc4bd545f9ac31b394a53b928

  • SHA1

    ea5aabb2542fc7db02edeb391c75341b3ead14e3

  • SHA256

    b7cf62fe8702cd28f979acfccd17ce44b8c4a0d2a72b47e46348e9c1d98e3a05

  • SHA512

    d1660aea4ba7c74d66bb568eb25d9f4a0d225b0250434986917ece510fd0c7c2c865c177893b720b339acaec819912d984db502ca1fd2211868175799f6b6c04

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\b7cf62fe8702cd28f979acfccd17ce44b8c4a0d2a72b47e46348e9c1d98e3a05.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1696
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\b7cf62fe8702cd28f979acfccd17ce44b8c4a0d2a72b47e46348e9c1d98e3a05.dll,#1
      2⤵
      • Checks whether UAC is enabled
      PID:4072

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • memory/4072-115-0x0000000073A70000-0x0000000073A9E000-memory.dmp

    Filesize

    184KB

  • memory/4072-117-0x00000000028B0000-0x00000000029FA000-memory.dmp

    Filesize

    1.3MB