Analysis

  • max time kernel
    19s
  • max time network
    112s
  • platform
    windows10_x64
  • resource
    win10v20210410
  • submitted
    22-06-2021 09:24

General

  • Target

    99b5a16fb10b5d12896c451b281494ebfdff853f954f07a13115f33a0b871008.dll

  • Size

    158KB

  • MD5

    e0f2e5b33210faf05ad0831f0d8cdeab

  • SHA1

    3c742718d93a8349063f387023237182d8ed0ba2

  • SHA256

    99b5a16fb10b5d12896c451b281494ebfdff853f954f07a13115f33a0b871008

  • SHA512

    515495da690bd3dc69fa8f1ab320ba53e49f4829950b51876772e0a4b2ec37342a12c11533051735bf632df3df5d7581314f19238dba8b81558a693dd8bf7f8a

Malware Config

Extracted

Family

dridex

Botnet

40112

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\99b5a16fb10b5d12896c451b281494ebfdff853f954f07a13115f33a0b871008.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1968
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\99b5a16fb10b5d12896c451b281494ebfdff853f954f07a13115f33a0b871008.dll,#1
      2⤵
      • Checks whether UAC is enabled
      PID:2760

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • memory/2760-115-0x0000000073860000-0x000000007388D000-memory.dmp

    Filesize

    180KB

  • memory/2760-117-0x0000000000510000-0x000000000065A000-memory.dmp

    Filesize

    1.3MB