Analysis

  • max time kernel
    65s
  • max time network
    126s
  • submitted
    01-01-1970 00:00

General

  • Target

    f1ec18d4bba30a7685d24c47c27fcfb3.dll

  • Size

    750KB

  • MD5

    f1ec18d4bba30a7685d24c47c27fcfb3

  • SHA1

    54442998793413816475c8f15e8afae0c7cd71c6

  • SHA256

    d02b00600dcadb02302b00e26a087f3fa7b79a5e7b4c59e05ebec201e1865314

  • SHA512

    a7e2ffc93aaff715cbfc7bd4932b418b9f4bdc6095c2afca96e25eaae52c3d53914796588993294ed66bb7b36b84d282c5b4f89032347e0020599e72dc9a6541

Malware Config

Extracted

Family

dridex

Botnet

10555

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 2 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 7 IoCs

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\f1ec18d4bba30a7685d24c47c27fcfb3.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:320
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\f1ec18d4bba30a7685d24c47c27fcfb3.dll,#1
      2⤵
      • Blocklisted process makes network request
      • Checks whether UAC is enabled
      PID:776

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/776-54-0x0000000000000000-mapping.dmp
  • memory/776-55-0x00000000767F1000-0x00000000767F3000-memory.dmp
    Filesize

    8KB

  • memory/776-56-0x0000000075090000-0x0000000075159000-memory.dmp
    Filesize

    804KB

  • memory/776-57-0x0000000075090000-0x00000000750CD000-memory.dmp
    Filesize

    244KB

  • memory/776-58-0x0000000075090000-0x0000000075159000-memory.dmp
    Filesize

    804KB

  • memory/776-60-0x0000000000160000-0x0000000000161000-memory.dmp
    Filesize

    4KB