Analysis

  • max time kernel
    46s
  • max time network
    55s
  • platform
    windows10_x64
  • resource
    win10v20210408
  • submitted
    21-04-2021 17:41

General

  • Target

    15ec7fe708c8dc9f01b07c423edb6c9e475b42a13b6e352c7c0cf7abd62435cb.dll

  • Size

    160KB

  • MD5

    4a8a46223992313e342faab7b6477ad8

  • SHA1

    3fe37d9be9626b5b8c7e0d2bdb13deada5729864

  • SHA256

    15ec7fe708c8dc9f01b07c423edb6c9e475b42a13b6e352c7c0cf7abd62435cb

  • SHA512

    3ca50231d6cd86ad0e55eafff1c597586eb9a84882ea36d55d17ed48bbb7ef8a030b9049148497c818f429c9eb3ecca0183c44f0b14dea0a2684ab5e4909b07a

Malware Config

Extracted

Family

dridex

Botnet

40111

C2

94.247.168.64:443

159.203.93.122:8172

50.116.27.97:2303

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\15ec7fe708c8dc9f01b07c423edb6c9e475b42a13b6e352c7c0cf7abd62435cb.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:572
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\15ec7fe708c8dc9f01b07c423edb6c9e475b42a13b6e352c7c0cf7abd62435cb.dll,#1
      2⤵
      • Checks whether UAC is enabled
      PID:956

Network

MITRE ATT&CK Matrix ATT&CK v6

Discovery

System Information Discovery

1
T1082

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/956-114-0x0000000000000000-mapping.dmp
  • memory/956-115-0x0000000074390000-0x00000000743BE000-memory.dmp
    Filesize

    184KB

  • memory/956-117-0x0000000003180000-0x0000000003186000-memory.dmp
    Filesize

    24KB