Analysis

  • max time kernel
    18s
  • max time network
    121s
  • platform
    windows10_x64
  • resource
    win10v20210410
  • submitted
    11-06-2021 03:32

General

  • Target

    afd1f820e3f6db2a92725e967113a22643f40f05ea1f2a39cbaf8ca47e4f9782.dll

  • Size

    158KB

  • MD5

    5599c329238584d528f842c8c2fd2770

  • SHA1

    d38d86f5d40d62943b88a33bffbbf3bf7049a7c1

  • SHA256

    afd1f820e3f6db2a92725e967113a22643f40f05ea1f2a39cbaf8ca47e4f9782

  • SHA512

    e1477429787741c8ce8437be914990579e98592b9eb4e5484d930de4f253b14a5fd5a9d93b5f0c67ab8300edb63a17fa8e84e4d6380c1c9e40811e1379f34c66

Malware Config

Extracted

Family

dridex

Botnet

40111

C2

8.210.53.215:443

72.249.22.245:2303

188.40.137.206:8172

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\afd1f820e3f6db2a92725e967113a22643f40f05ea1f2a39cbaf8ca47e4f9782.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1852
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\afd1f820e3f6db2a92725e967113a22643f40f05ea1f2a39cbaf8ca47e4f9782.dll,#1
      2⤵
      • Checks whether UAC is enabled
      PID:1636

Network

MITRE ATT&CK Matrix ATT&CK v6

Discovery

System Information Discovery

1
T1082

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/1636-114-0x0000000000000000-mapping.dmp
  • memory/1636-115-0x0000000073E80000-0x0000000073EAD000-memory.dmp
    Filesize

    180KB

  • memory/1636-117-0x00000000005C0000-0x00000000005C6000-memory.dmp
    Filesize

    24KB