Analysis

  • max time kernel
    17s
  • max time network
    115s
  • platform
    windows10_x64
  • resource
    win10v20210410
  • submitted
    15/06/2021, 15:46

General

  • Target

    cf6c75d3a8f768be2222a2c580eed7d9ddabea4f1ec3b0a63dabac9e77d2eade.dll

  • Size

    172KB

  • MD5

    86be87c097abbb65e447f43b4617c4a0

  • SHA1

    7af1c4678e7dd680b21ee8fee646317b525e5e5f

  • SHA256

    cf6c75d3a8f768be2222a2c580eed7d9ddabea4f1ec3b0a63dabac9e77d2eade

  • SHA512

    57dc956685a7d3b4f46062dc78624ceb309a7c378864fc8566bb87a6300c9cc9a2e51cfa84227afccba91ce5ca0e52d4f6f2eaec592bc30759f98f45ccf53bb0

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\cf6c75d3a8f768be2222a2c580eed7d9ddabea4f1ec3b0a63dabac9e77d2eade.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:4056
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\cf6c75d3a8f768be2222a2c580eed7d9ddabea4f1ec3b0a63dabac9e77d2eade.dll,#1
      2⤵
        PID:496
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 496 -s 680
          3⤵
          • Program crash
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:3672

    Network

          MITRE ATT&CK Matrix

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • memory/496-115-0x0000000073860000-0x0000000073890000-memory.dmp

            Filesize

            192KB

          • memory/496-117-0x00000000031F0000-0x00000000031F6000-memory.dmp

            Filesize

            24KB