Analysis

  • max time kernel
    18s
  • max time network
    112s
  • platform
    windows10_x64
  • resource
    win10v20210410
  • submitted
    11-06-2021 03:16

General

  • Target

    b2ca530878324bcac74f0f0acc7794c7ea39e3a82e72a8b3b502e7f107421253.dll

  • Size

    174KB

  • MD5

    e86e0ed7241dfabdfdb42bba2663927b

  • SHA1

    39c7cab06e1fc1d9cf18a2ea7ab02a30e6b4ecd1

  • SHA256

    b2ca530878324bcac74f0f0acc7794c7ea39e3a82e72a8b3b502e7f107421253

  • SHA512

    46e20c41eedcdfe379f6a787e51edca7e3e14662f6519a42308062b0e9959d5a444ed21073f8425abb4c61d78d0183147c42e6147921c10fef39843f84376f79

Malware Config

Extracted

Family

dridex

Botnet

22201

C2

178.128.220.64:30333

45.79.91.89:9987

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\b2ca530878324bcac74f0f0acc7794c7ea39e3a82e72a8b3b502e7f107421253.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:4080
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\b2ca530878324bcac74f0f0acc7794c7ea39e3a82e72a8b3b502e7f107421253.dll,#1
      2⤵
        PID:3764
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 3764 -s 644
          3⤵
          • Program crash
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:2608

    Network

    MITRE ATT&CK Matrix

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/3764-114-0x0000000000000000-mapping.dmp
    • memory/3764-115-0x00000000742E0000-0x0000000074310000-memory.dmp
      Filesize

      192KB

    • memory/3764-117-0x0000000002AD0000-0x0000000002AD6000-memory.dmp
      Filesize

      24KB