Analysis

  • max time kernel
    152s
  • max time network
    167s
  • platform
    windows10_x64
  • resource
    win10v20210408
  • submitted
    14-10-2021 07:04

General

  • Target

    ff32882e03c490121358ec7a804f3568b8ffd5a9e02ceedb0f66f7dfb951cbbe.dll

  • Size

    608KB

  • MD5

    dd8a6238fbf020c318d4a58692a833d0

  • SHA1

    4f8bd2f6783e060d51235179340a53784faca5a4

  • SHA256

    ff32882e03c490121358ec7a804f3568b8ffd5a9e02ceedb0f66f7dfb951cbbe

  • SHA512

    c53c4a9de92baf109de3f69087fc103f84014a6614f6fe9f0dc90bcb9fd28b77b7536850fc94d95acfe4d3ce2021bdd83c4b3817949fb3ee7598ead257386208

Malware Config

Extracted

Family

dridex

Botnet

10444

C2

174.128.245.202:443

51.83.3.52:13786

69.64.50.41:6602

rc4.plain
rc4.plain

Signatures

  • Dridex

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

  • Blocklisted process makes network request 2 IoCs
  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • 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\ff32882e03c490121358ec7a804f3568b8ffd5a9e02ceedb0f66f7dfb951cbbe.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:996
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\ff32882e03c490121358ec7a804f3568b8ffd5a9e02ceedb0f66f7dfb951cbbe.dll,#1
      2⤵
      • Blocklisted process makes network request
      • Checks whether UAC is enabled
      PID:3976

Network

MITRE ATT&CK Matrix ATT&CK v6

Discovery

Query Registry

1
T1012

System Information Discovery

1
T1082

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/3976-114-0x0000000000000000-mapping.dmp
  • memory/3976-115-0x0000000000C20000-0x0000000000D54000-memory.dmp
    Filesize

    1.2MB

  • memory/3976-117-0x0000000000C20000-0x0000000000D54000-memory.dmp
    Filesize

    1.2MB

  • memory/3976-118-0x0000000000C20000-0x0000000000C5D000-memory.dmp
    Filesize

    244KB

  • memory/3976-119-0x0000000000C20000-0x0000000000D54000-memory.dmp
    Filesize

    1.2MB

  • memory/3976-121-0x0000000000730000-0x0000000000731000-memory.dmp
    Filesize

    4KB

  • memory/3976-122-0x0000000000730000-0x0000000000731000-memory.dmp
    Filesize

    4KB

  • memory/3976-123-0x0000000000730000-0x0000000000731000-memory.dmp
    Filesize

    4KB

  • memory/3976-250-0x0000000000720000-0x0000000000721000-memory.dmp
    Filesize

    4KB