Analysis

  • max time kernel
    45s
  • max time network
    53s
  • platform
    windows10_x64
  • resource
    win10v20210408
  • submitted
    21-04-2021 23:34

General

  • Target

    42d6ad1fbeb85debfa73b337c09db9764f2a13630046caf49120a71b35b42a54.dll

  • Size

    162KB

  • MD5

    492b1c2ee16b933ae5f927186d8329ec

  • SHA1

    6322da8b75ce7197bf24aa03063fe6a18ec2f331

  • SHA256

    42d6ad1fbeb85debfa73b337c09db9764f2a13630046caf49120a71b35b42a54

  • SHA512

    16fc0239ef86801974f4a77b76f6f853568cd506bb110567d1ed2f06803219ee817e40c0234b8f08ac565ec68a651f3b0bc9242eb33fcc2bdab72027bb698367

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\42d6ad1fbeb85debfa73b337c09db9764f2a13630046caf49120a71b35b42a54.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:640
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\42d6ad1fbeb85debfa73b337c09db9764f2a13630046caf49120a71b35b42a54.dll,#1
      2⤵
      • Checks whether UAC is enabled
      PID:1652

Network

MITRE ATT&CK Matrix ATT&CK v6

Discovery

System Information Discovery

1
T1082

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/1652-114-0x0000000000000000-mapping.dmp
  • memory/1652-115-0x0000000073FB0000-0x0000000073FDE000-memory.dmp
    Filesize

    184KB

  • memory/1652-117-0x0000000003410000-0x0000000003416000-memory.dmp
    Filesize

    24KB