qz0h69pdf

General
Target

qz0h69pdf.dll

Filesize

539KB

Completed

19-11-2020 13:07

Score
10 /10
MD5

ba7ddbd663a50b149b22d810f4211207

SHA1

06faf7fce11b89e4119c70c5a8cb56d97ab68bab

SHA256

eb1a0c3677f4b416e43e2c4d88a30d1f5bd4d9b00b1e0c48efef31b034465e3c

Malware Config

Extracted

Family dridex
Botnet 10555
C2

162.241.44.26:9443

192.232.229.53:4443

77.220.64.34:443

193.90.12.121:3098

rc4.plain
rc4.plain
Signatures 6

Filter: none

Discovery
  • Dridex

    Description

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

  • Dridex Loader

    Description

    Detects Dridex both x86 and x64 loader in memory.

    Reported IOCs

    resourceyara_rule
    behavioral1/memory/1764-1-0x00000000003D0000-0x000000000040D000-memory.dmpdridex_ldr
  • Blocklisted process makes network request
    rundll32.exe

    Reported IOCs

    flowpidprocess
    41764rundll32.exe
    71764rundll32.exe
  • Checks installed software on the system

    Description

    Looks up Uninstall key entries in the registry to enumerate software on the system.

    Tags

    TTPs

    Query Registry
  • Checks whether UAC is enabled
    rundll32.exe

    TTPs

    System Information Discovery

    Reported IOCs

    descriptioniocprocess
    Key value queried\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUArundll32.exe
  • Suspicious use of WriteProcessMemory
    rundll32.exe

    Reported IOCs

    descriptionpidprocesstarget process
    PID 744 wrote to memory of 1764744rundll32.exerundll32.exe
    PID 744 wrote to memory of 1764744rundll32.exerundll32.exe
    PID 744 wrote to memory of 1764744rundll32.exerundll32.exe
    PID 744 wrote to memory of 1764744rundll32.exerundll32.exe
    PID 744 wrote to memory of 1764744rundll32.exerundll32.exe
    PID 744 wrote to memory of 1764744rundll32.exerundll32.exe
    PID 744 wrote to memory of 1764744rundll32.exerundll32.exe
Processes 2
  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\qz0h69pdf.dll,#1
    Suspicious use of WriteProcessMemory
    PID:744
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\qz0h69pdf.dll,#1
      Blocklisted process makes network request
      Checks whether UAC is enabled
      PID:1764
Network
MITRE ATT&CK Matrix
Collection
    Command and Control
      Credential Access
        Defense Evasion
          Execution
            Exfiltration
              Impact
                Initial Access
                  Lateral Movement
                    Persistence
                      Privilege Escalation
                        Replay Monitor
                        00:00 00:00
                        Downloads
                        • memory/1756-2-0x000007FEF7900000-0x000007FEF7B7A000-memory.dmp

                        • memory/1764-0-0x0000000000000000-mapping.dmp

                        • memory/1764-1-0x00000000003D0000-0x000000000040D000-memory.dmp