Analysis

  • max time kernel
    50s
  • max time network
    61s
  • platform
    windows7_x64
  • resource
    win7v20201028
  • submitted
    04-03-2021 21:05

General

  • Target

    ee036bd07a646a078838ad082e833d0ef8a27f46375403a829f6938401ba0c83.dll

  • Size

    196KB

  • MD5

    0b7fbbc6c1d4c6556f9f84dfc7fce5bf

  • SHA1

    c43a53e56e59ec892f78d6fb90fd5dc0e3d4d50c

  • SHA256

    ee036bd07a646a078838ad082e833d0ef8a27f46375403a829f6938401ba0c83

  • SHA512

    3ebe524d8be14d3670f682ce6217820b0bc88b4b70c93087a5b80e3c9eb69d2b493791feb7ff927cfe24e40f5a734e09a7c33f0c05e6617a407a181750410b8c

Malware Config

Extracted

Family

dridex

Botnet

111

C2

37.247.35.132:443

50.243.30.51:6601

162.241.204.234:6516

rc4.plain
rc4.plain

Signatures

  • Dridex

    Dridex(known as Bugat/Cridex) is a form of malware that specializes in stealing bank credentials.

  • Dridex Loader 2 IoCs

    Detects Dridex both x86 and x64 loader in memory.

  • Blocklisted process makes network request 2 IoCs
  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • Checks whether UAC is enabled 1 TTPs 1 IoCs
  • Suspicious use of WriteProcessMemory 7 IoCs

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\ee036bd07a646a078838ad082e833d0ef8a27f46375403a829f6938401ba0c83.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1656
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\ee036bd07a646a078838ad082e833d0ef8a27f46375403a829f6938401ba0c83.dll,#1
      2⤵
      • Blocklisted process makes network request
      • Checks whether UAC is enabled
      PID:1940

Network

MITRE ATT&CK Matrix ATT&CK v6

Discovery

Query Registry

1
T1012

System Information Discovery

1
T1082

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/1440-7-0x000007FEF6C40000-0x000007FEF6EBA000-memory.dmp
    Filesize

    2.5MB

  • memory/1940-2-0x0000000000000000-mapping.dmp
  • memory/1940-3-0x00000000765A1000-0x00000000765A3000-memory.dmp
    Filesize

    8KB

  • memory/1940-4-0x0000000075300000-0x0000000075333000-memory.dmp
    Filesize

    204KB

  • memory/1940-5-0x00000000000D0000-0x00000000000D6000-memory.dmp
    Filesize

    24KB

  • memory/1940-6-0x0000000075300000-0x000000007531F000-memory.dmp
    Filesize

    124KB