Analysis

  • max time kernel
    119s
  • max time network
    119s
  • platform
    windows10_x64
  • resource
    win10v20210410
  • submitted
    21-04-2021 18:02

General

  • Target

    33288e5a57352bafc3dda77f0a06befc8cb8b3e3092fe79c0df4079cf0d322b4.dll

  • Size

    157KB

  • MD5

    46835c97d60eaf24ffb1c653061eebd1

  • SHA1

    fe9d41e5c8c61b6f4b77a35235b19a0a5c045ac5

  • SHA256

    33288e5a57352bafc3dda77f0a06befc8cb8b3e3092fe79c0df4079cf0d322b4

  • SHA512

    7e9faa007959ad0a55501d822853bfb3c540705afee0db3b664a09d2193934be3fdd96e685f9d0eaea7a39efc970ebb283f442ff859ddd9cbe6e1ffb26ff65c3

Malware Config

Extracted

Family

dridex

Botnet

40112

C2

159.8.59.82:443

51.91.156.39:2303

67.196.50.240:8172

rc4.plain
rc4.plain

Signatures

  • Dridex

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

  • Dridex Loader 1 IoCs

    Detects Dridex both x86 and x64 loader in memory.

  • 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\33288e5a57352bafc3dda77f0a06befc8cb8b3e3092fe79c0df4079cf0d322b4.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:512
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\33288e5a57352bafc3dda77f0a06befc8cb8b3e3092fe79c0df4079cf0d322b4.dll,#1
      2⤵
      • Checks whether UAC is enabled
      PID:1724

Network

MITRE ATT&CK Matrix ATT&CK v6

Discovery

System Information Discovery

1
T1082

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/1724-114-0x0000000000000000-mapping.dmp
  • memory/1724-115-0x0000000073A90000-0x0000000073ABD000-memory.dmp
    Filesize

    180KB

  • memory/1724-117-0x0000000000790000-0x0000000000796000-memory.dmp
    Filesize

    24KB