Analysis

  • max time kernel
    142s
  • max time network
    132s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230621-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230621-enlocale:en-usos:windows10-2004-x64system
  • submitted
    30-06-2023 12:50

General

  • Target

    kqgnyb.dll

  • Size

    785KB

  • MD5

    29517d23a58b39ee49f9b966eeb114a2

  • SHA1

    ecb76eb685dce686ac2fb8d2a8a381a08dc540eb

  • SHA256

    24275f73c8faf326ccfe1dff433841bd84a13af9d37bae065585cb8a05589968

  • SHA512

    a9bd42d1448a35deaded45ca5e87fac381735dba7ef3dd67f239d7a24cf083d04ba3f32c5366149ffe71dd8d167a54fe6c01711d3233308f6c8065341c60aae5

  • SSDEEP

    12288:MbqkjZr1Vu8MpJYosZUmc16RWdrpo8+FFcLxT8HoxmRsDJteMKTO81MOU7qOkQR1:MbqkjZrqxYjxoArwQobmMKFiOUFkK1

Malware Config

Extracted

Family

dridex

Botnet

10444

C2

209.20.87.138:443

198.1.115.153:8172

151.236.29.248:6516

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\kqgnyb.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2932
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\kqgnyb.dll,#1
      2⤵
      • Blocklisted process makes network request
      • Checks whether UAC is enabled
      PID:3944

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/3944-133-0x0000000074D80000-0x0000000074E9B000-memory.dmp
    Filesize

    1MB

  • memory/3944-135-0x0000000000CD0000-0x0000000000CD1000-memory.dmp
    Filesize

    4KB

  • memory/3944-136-0x0000000074D80000-0x0000000074E9B000-memory.dmp
    Filesize

    1MB

  • memory/3944-139-0x0000000074D80000-0x0000000074E9B000-memory.dmp
    Filesize

    1MB