Analysis

  • max time kernel
    101s
  • max time network
    110s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220414-en
  • submitted
    26-06-2022 05:40

General

  • Target

    j7i4qif86.dll

  • Size

    1.0MB

  • MD5

    b42efe18ad2b37cb24daf1ee27db37dd

  • SHA1

    92f63db052ba2e576a538090b12665cb9761dc2d

  • SHA256

    f9f2bf64359f28b5c7c261321f5ee1da8207e138ea675287eb027235696649af

  • SHA512

    d6f24963529822b49928ae721f71836b849ce64c3ee978e6306cb40c5bea9c23ae844d34c3bbdca3f720badaff547a66ebd71f4fed2ccbfe91dd1521be284cf8

Malware Config

Extracted

Family

dridex

Botnet

10444

C2

192.46.210.220:443

143.244.140.214:808

45.77.0.96:6891

185.56.219.47:8116

rc4.plain
rc4.plain

Signatures

  • Dridex

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

  • Blocklisted process makes network request 1 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 3 IoCs

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\j7i4qif86.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1252
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\j7i4qif86.dll,#1
      2⤵
      • Blocklisted process makes network request
      • Checks whether UAC is enabled
      PID:804

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/804-130-0x0000000000000000-mapping.dmp
  • memory/804-131-0x0000000074F90000-0x00000000750AB000-memory.dmp
    Filesize

    1.1MB

  • memory/804-133-0x0000000074F90000-0x00000000750AB000-memory.dmp
    Filesize

    1.1MB

  • memory/804-132-0x0000000074F90000-0x0000000074FCD000-memory.dmp
    Filesize

    244KB

  • memory/804-135-0x0000000074F90000-0x00000000750AB000-memory.dmp
    Filesize

    1.1MB

  • memory/804-136-0x0000000074F90000-0x00000000750AB000-memory.dmp
    Filesize

    1.1MB