Analysis

  • max time kernel
    19s
  • max time network
    136s
  • platform
    windows10_x64
  • resource
    win10v20210410
  • submitted
    29-06-2021 02:10

General

  • Target

    8a9d404591fbccff15a74533204c032a81f37e2972e9345a070052c98fa82a48.dll

  • Size

    162KB

  • MD5

    6f3f0ec4c61a419221e92293bfc73055

  • SHA1

    5ec1eb5dbc7c311c3431ec169b03045305fc9857

  • SHA256

    8a9d404591fbccff15a74533204c032a81f37e2972e9345a070052c98fa82a48

  • SHA512

    2e789d53ac44cce8911e2b723e4c73e8ac787a4d08e3248fc20cad60d26a90f473c3288a637a14d7c133ab178c7fceba2e6bd95960351e22def1e1483fdb3ea2

Malware Config

Extracted

Family

dridex

Botnet

40112

C2

107.172.227.10:443

172.93.133.123:2303

108.168.61.147:8172

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\8a9d404591fbccff15a74533204c032a81f37e2972e9345a070052c98fa82a48.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:3680
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\8a9d404591fbccff15a74533204c032a81f37e2972e9345a070052c98fa82a48.dll,#1
      2⤵
      • Checks whether UAC is enabled
      PID:3800

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • memory/3800-114-0x0000000000000000-mapping.dmp

  • memory/3800-115-0x00000000736B0000-0x00000000736DE000-memory.dmp

    Filesize

    184KB

  • memory/3800-117-0x00000000008F0000-0x0000000000A3A000-memory.dmp

    Filesize

    1.3MB