Analysis

  • max time kernel
    38s
  • max time network
    46s
  • platform
    windows10_x64
  • resource
    win10v20210408
  • submitted
    21-04-2021 21:38

General

  • Target

    2cd9bc103723b9257c0e1616267b657609d6ad7e20feb4a8ccff4ed8eb4dfd11.dll

  • Size

    162KB

  • MD5

    e0767190ac0c354ed939d78a1ac95a6e

  • SHA1

    2cf41c134d4aed8b157cfbf80621ba0c72d4f05a

  • SHA256

    2cd9bc103723b9257c0e1616267b657609d6ad7e20feb4a8ccff4ed8eb4dfd11

  • SHA512

    200f75b9b93d243249ae95efc1e79750fd0da59f37714283dda6447fea6fd34f259a526965f73b140b594d605d41aa5bb8b5df72d2d7f2444f28985c50b95f08

Malware Config

Extracted

Family

dridex

Botnet

40112

C2

107.172.227.10:443

172.93.133.123:2303

108.168.61.147:8172

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 3 IoCs

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\2cd9bc103723b9257c0e1616267b657609d6ad7e20feb4a8ccff4ed8eb4dfd11.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:624
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\2cd9bc103723b9257c0e1616267b657609d6ad7e20feb4a8ccff4ed8eb4dfd11.dll,#1
      2⤵
      • Checks whether UAC is enabled
      PID:1048

Network

MITRE ATT&CK Matrix ATT&CK v6

Discovery

System Information Discovery

1
T1082

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/1048-114-0x0000000000000000-mapping.dmp
  • memory/1048-115-0x0000000074300000-0x000000007432E000-memory.dmp
    Filesize

    184KB

  • memory/1048-117-0x0000000002BF0000-0x0000000002BF6000-memory.dmp
    Filesize

    24KB