Analysis

  • max time kernel
    17s
  • max time network
    113s
  • platform
    windows10_x64
  • resource
    win10v20210410
  • submitted
    15/06/2021, 16:17

General

  • Target

    20cfb7261b4b9a6b7dfa96d248b3d2444a4aa712ffce804102b72f0f2276766e.dll

  • Size

    172KB

  • MD5

    ead70c421880021a2ae0be1206103f58

  • SHA1

    f1d2b334df28e0af15d79f49de27c8b37d863a48

  • SHA256

    20cfb7261b4b9a6b7dfa96d248b3d2444a4aa712ffce804102b72f0f2276766e

  • SHA512

    4b9b1ea0f88e4a61154935012dadd89707f9fb563b44ee824ccdac943165ac61e73bcaf28e314280f20619fab20d07b93f79d7bf09e457031e0968e03ff46cc5

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\20cfb7261b4b9a6b7dfa96d248b3d2444a4aa712ffce804102b72f0f2276766e.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:3768
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\20cfb7261b4b9a6b7dfa96d248b3d2444a4aa712ffce804102b72f0f2276766e.dll,#1
      2⤵
        PID:3736
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 3736 -s 684
          3⤵
          • Program crash
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:3476

    Network

          MITRE ATT&CK Matrix

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • memory/3736-115-0x0000000073D70000-0x0000000073DA0000-memory.dmp

            Filesize

            192KB

          • memory/3736-117-0x0000000000FF0000-0x0000000001013000-memory.dmp

            Filesize

            140KB