Analysis

  • max time kernel
    26s
  • max time network
    119s
  • platform
    windows10_x64
  • resource
    win10v20210408
  • submitted
    21-07-2021 20:03

General

  • Target

    45d9d9c13a4b2f77a5635a64cd58bd03.dll

  • Size

    175KB

  • MD5

    45d9d9c13a4b2f77a5635a64cd58bd03

  • SHA1

    be2b540f68f41a7a05e7d68c52712347f979b706

  • SHA256

    e26c7e7c111e41d766ab313e1c4c0f17cbc9710aee23248b017735caf97f2a0e

  • SHA512

    2f72bc059afaf29cfdbd207684486ea3c32ce7f640bc8b1002948a7bdf987b5c7dbd35b3dc917b54f853683d1b331e61c619c1c309e3bedd15308a4ebfa5f141

Malware Config

Extracted

Family

dridex

Botnet

22201

C2

178.238.236.59:443

104.245.52.73:5007

81.0.236.93:13786

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.

  • 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\45d9d9c13a4b2f77a5635a64cd58bd03.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:996
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\45d9d9c13a4b2f77a5635a64cd58bd03.dll,#1
      2⤵
        PID:1436
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 1436 -s 640
          3⤵
          • Program crash
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:1308

    Network

    MITRE ATT&CK Matrix

    Replay Monitor

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    Downloads

    • memory/1436-114-0x0000000000000000-mapping.dmp

    • memory/1436-115-0x0000000074260000-0x0000000074290000-memory.dmp

      Filesize

      192KB

    • memory/1436-117-0x0000000000DA0000-0x0000000000DA6000-memory.dmp

      Filesize

      24KB