Analysis

  • max time kernel
    27s
  • max time network
    96s
  • platform
    windows10_x64
  • resource
    win10v20210408
  • submitted
    15/06/2021, 15:44

General

  • Target

    a8547eb9fa294dce3973378ffd1ff08f4bf72c71e4e9088e41574326d7ed2e93.dll

  • Size

    172KB

  • MD5

    1fd7e0298d8f9c65c17c31fd7c96a8fb

  • SHA1

    a5e12e3f15a6bc27c89966ade4e1e07d0b45562d

  • SHA256

    a8547eb9fa294dce3973378ffd1ff08f4bf72c71e4e9088e41574326d7ed2e93

  • SHA512

    3a0ffeda54bc1c2caee0f3210a443ef8e838ec741a0760a066c3dbf3193f7945335224d50a7dfa4c79e9e37ed5a0929dd6e469db72b429d60c915a71f7533089

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\a8547eb9fa294dce3973378ffd1ff08f4bf72c71e4e9088e41574326d7ed2e93.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:860
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\a8547eb9fa294dce3973378ffd1ff08f4bf72c71e4e9088e41574326d7ed2e93.dll,#1
      2⤵
        PID:1184
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 1184 -s 684
          3⤵
          • Program crash
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:2172

    Network

          MITRE ATT&CK Matrix

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • memory/1184-115-0x00000000738F0000-0x0000000073920000-memory.dmp

            Filesize

            192KB

          • memory/1184-117-0x00000000027F0000-0x00000000027F6000-memory.dmp

            Filesize

            24KB