Analysis

  • max time kernel
    135s
  • max time network
    137s
  • platform
    windows7_x64
  • resource
    win7v20210408
  • submitted
    21-04-2021 15:36

General

  • Target

    ff05100badfe66a35b8fb9e08f08c2a365416a18ce03f3f592ce8ab3a7058239.dll

  • Size

    162KB

  • MD5

    9bbe2a5eb5725ec06f449edd4d5a70c6

  • SHA1

    b97b233a63ef27afb223447f52ea6387d94612f8

  • SHA256

    ff05100badfe66a35b8fb9e08f08c2a365416a18ce03f3f592ce8ab3a7058239

  • SHA512

    c14ab80a1034f4638be2d91c77b7c30622e767ded4efc972906ce30ebd3514d850124752a07e1682a2d5b95d07b338e6ddde5416de0189de3ab28e482fa24e43

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 7 IoCs

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\ff05100badfe66a35b8fb9e08f08c2a365416a18ce03f3f592ce8ab3a7058239.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1348
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\ff05100badfe66a35b8fb9e08f08c2a365416a18ce03f3f592ce8ab3a7058239.dll,#1
      2⤵
      • Checks whether UAC is enabled
      PID:2028

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • memory/2028-60-0x0000000000000000-mapping.dmp

  • memory/2028-61-0x00000000762C1000-0x00000000762C3000-memory.dmp

    Filesize

    8KB

  • memory/2028-62-0x0000000075450000-0x000000007547E000-memory.dmp

    Filesize

    184KB

  • memory/2028-64-0x00000000000D0000-0x00000000000D6000-memory.dmp

    Filesize

    24KB