Analysis

  • max time kernel
    36s
  • max time network
    10s
  • platform
    windows7_x64
  • resource
    win7v20210408
  • submitted
    21-04-2021 18:11

General

  • Target

    dc50faec3e57c8b02204d2190b74e2c775e7b5f0aaa129ba807d4d65f4880b29.dll

  • Size

    157KB

  • MD5

    6c75ad377129a588ba7b91bab284f219

  • SHA1

    a7513a7655f6c2e283972977e57e044731c1b217

  • SHA256

    dc50faec3e57c8b02204d2190b74e2c775e7b5f0aaa129ba807d4d65f4880b29

  • SHA512

    fce22abbcb31327968067eefe393feab805859ff869161ec754a1054f8e03c8a4e9f79491d4d6dbda7a10e8edb01c8b3940b068e598259978955e01b14c409bc

Malware Config

Extracted

Family

dridex

Botnet

40112

C2

159.8.59.82:443

51.91.156.39:2303

67.196.50.240:8172

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.

  • 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\dc50faec3e57c8b02204d2190b74e2c775e7b5f0aaa129ba807d4d65f4880b29.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1840
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\dc50faec3e57c8b02204d2190b74e2c775e7b5f0aaa129ba807d4d65f4880b29.dll,#1
      2⤵
      • Checks whether UAC is enabled
      PID:1164

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • memory/1164-60-0x0000000000000000-mapping.dmp
  • memory/1164-61-0x0000000074D91000-0x0000000074D93000-memory.dmp
    Filesize

    8KB

  • memory/1164-62-0x0000000074510000-0x000000007453D000-memory.dmp
    Filesize

    180KB

  • memory/1164-64-0x0000000000150000-0x0000000000156000-memory.dmp
    Filesize

    24KB