Analysis

  • max time kernel
    26s
  • max time network
    87s
  • platform
    windows10_x64
  • resource
    win10v20210408
  • submitted
    15/06/2021, 15:41

General

  • Target

    fb92dfc03d4de79e6440e20781553f3f8defbf1b6968f69924d1293fbae23d8a.dll

  • Size

    172KB

  • MD5

    ca99b94951519d96a9f01a65fc82e696

  • SHA1

    b996ebd51bf9c973c0dad0e53c8c84d2c0a98968

  • SHA256

    fb92dfc03d4de79e6440e20781553f3f8defbf1b6968f69924d1293fbae23d8a

  • SHA512

    069fc3590fd9f8aa4926979cf0fef6f3ee2553416fa44f7f8df442ca0eba4a3a307f8f194ee6225e370329eeb3e2f1bf1fd577cb8bc3365fc6241506706ef67b

Malware Config

Extracted

Family

dridex

Botnet

40112

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.

  • 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\fb92dfc03d4de79e6440e20781553f3f8defbf1b6968f69924d1293fbae23d8a.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:604
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\fb92dfc03d4de79e6440e20781553f3f8defbf1b6968f69924d1293fbae23d8a.dll,#1
      2⤵
        PID:508
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 508 -s 680
          3⤵
          • Program crash
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:2868

    Network

          MITRE ATT&CK Matrix

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • memory/508-115-0x00000000735F0000-0x0000000073620000-memory.dmp

            Filesize

            192KB

          • memory/508-117-0x0000000002ED0000-0x0000000002EF3000-memory.dmp

            Filesize

            140KB