Analysis

  • max time kernel
    27s
  • max time network
    114s
  • platform
    windows10_x64
  • resource
    win10v20210408
  • submitted
    11-06-2021 03:15

General

  • Target

    b5e47790e27c29cd2a5e083563909a367e095e011365cf5ba657251e36790432.dll

  • Size

    170KB

  • MD5

    f0fc2d8a1e5b4117087bc0391085503f

  • SHA1

    def0cbe79338251707ca2926b8b0d2f2011fcc5d

  • SHA256

    b5e47790e27c29cd2a5e083563909a367e095e011365cf5ba657251e36790432

  • SHA512

    e3f2fc2529e2502a5e16ec5598cc9d3d57f86b82d4eb2b25ea4c20b1c5a7566bca71ef6d6900a33cfba6ab022a9e6a409d5c479df17c4d22826fa51ab6b50268

Malware Config

Extracted

Family

dridex

Botnet

22201

C2

210.65.244.187:443

162.241.41.92:2303

46.231.204.10:8172

185.183.159.100:4125

rc4.plain
rc4.plain

Signatures

  • Dridex

    Dridex(known as Bugat/Cridex) is a form of malware that specializes in stealing bank credentials.

  • Suspicious use of NtCreateProcessExOtherParentProcess 1 IoCs
  • Dridex Loader 1 IoCs

    Detects Dridex both x86 and x64 loader in memory.

  • Program crash 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 14 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\b5e47790e27c29cd2a5e083563909a367e095e011365cf5ba657251e36790432.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:624
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\b5e47790e27c29cd2a5e083563909a367e095e011365cf5ba657251e36790432.dll,#1
      2⤵
        PID:1252
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 1252 -s 648
          3⤵
          • Suspicious use of NtCreateProcessExOtherParentProcess
          • Program crash
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:2300

    Network

    MITRE ATT&CK Matrix

    Replay Monitor

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    Downloads

    • memory/1252-114-0x0000000000000000-mapping.dmp
    • memory/1252-115-0x0000000074300000-0x000000007432F000-memory.dmp
      Filesize

      188KB

    • memory/1252-117-0x00000000023F0000-0x00000000023F6000-memory.dmp
      Filesize

      24KB