Analysis

  • max time kernel
    90s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220901-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system
  • submitted
    22-09-2022 06:23

General

  • Target

    3c4be1285b8069c2db590c1de6a77adef3198cc9c3f323aef5de73753421c2e8.dll

  • Size

    244KB

  • MD5

    94395a29f0cf16cc80c2a1a4aee0d8d4

  • SHA1

    c40574963b019d49fae4cffcefd970edf3957826

  • SHA256

    3c4be1285b8069c2db590c1de6a77adef3198cc9c3f323aef5de73753421c2e8

  • SHA512

    ca4fbefdfd4437f01d11545a28a3d21873f417a237a2e4a7e5c10abc2d59abbe5ffcdb146144e1c7dcfb304b9d747b119c8b1f0e72ac312c0a029cf12985d9f8

  • SSDEEP

    3072:2EmMHLYjs2g+ciAlYDyOWIsh0pMf+66C4FxTdCU1byGkGcyXDTEXlDkr/:9rHL+tg+cGyZzheB6b4fJCwb8d0E

Malware Config

Extracted

Family

dridex

Botnet

22201

C2

195.154.146.84:443

45.56.121.87:8116

157.245.222.44:5723

rc4.plain
rc4.plain

Signatures

  • Dridex

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

  • Dridex Loader ⋅ 2 IoCs

    Detects Dridex both x86 and x64 loader in memory.

  • Program crash ⋅ 1 IoCs
  • Suspicious use of WriteProcessMemory ⋅ 3 IoCs

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\3c4be1285b8069c2db590c1de6a77adef3198cc9c3f323aef5de73753421c2e8.dll,#1
    Suspicious use of WriteProcessMemory
    PID:820
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\3c4be1285b8069c2db590c1de6a77adef3198cc9c3f323aef5de73753421c2e8.dll,#1
      PID:5008
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 5008 -s 620
        Program crash
        PID:4756
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 424 -p 5008 -ip 5008
    PID:3080

Network

MITRE ATT&CK Matrix

Collection

    Command and Control

      Credential Access

        Defense Evasion

          Discovery

            Execution

              Exfiltration

                Impact

                  Initial Access

                    Lateral Movement

                      Persistence

                        Privilege Escalation

                          Replay Monitor

                          00:00 00:00

                          Downloads

                          • memory/5008-132-0x0000000000000000-mapping.dmp
                          • memory/5008-133-0x0000000075190000-0x00000000751CE000-memory.dmp
                          • memory/5008-137-0x0000000000320000-0x0000000000326000-memory.dmp
                          • memory/5008-138-0x0000000075190000-0x00000000751BF000-memory.dmp
                          • memory/5008-139-0x0000000075190000-0x00000000751CE000-memory.dmp
                          • memory/5008-140-0x0000000000260000-0x0000000000266000-memory.dmp