Analysis

  • max time kernel
    26s
  • max time network
    83s
  • platform
    windows7_x64
  • resource
    win7v20201028
  • submitted
    04-03-2021 01:06

General

  • Target

    c46eb850f9920336b99f11049f6c3c018a08ccdb75d3fb5ee7c1ecc08fc779b4.dll

  • Size

    196KB

  • MD5

    9757f74735004a2338226799a7fefe25

  • SHA1

    57b95c655bd8a3cba07fc10dfeaded2f2456d9b5

  • SHA256

    c46eb850f9920336b99f11049f6c3c018a08ccdb75d3fb5ee7c1ecc08fc779b4

  • SHA512

    d4a2c0ae2abcd41dd56959a7ffd2f62eb45f4ef725ee37d1d1a9d351fcd67c9ec20e4b2976591d657afabe9000e16991b916ede2cf3965e3d6aa09569163b6f6

Malware Config

Extracted

Family

dridex

Botnet

111

C2

37.247.35.132:443

50.243.30.51:6601

162.241.204.234:6516

rc4.plain
rc4.plain

Signatures

  • Dridex

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

  • Dridex Loader 2 IoCs

    Detects Dridex both x86 and x64 loader in memory.

  • 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 7 IoCs

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\c46eb850f9920336b99f11049f6c3c018a08ccdb75d3fb5ee7c1ecc08fc779b4.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1832
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\c46eb850f9920336b99f11049f6c3c018a08ccdb75d3fb5ee7c1ecc08fc779b4.dll,#1
      2⤵
      • Blocklisted process makes network request
      • Checks whether UAC is enabled
      PID:2040

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/284-7-0x000007FEF5D50000-0x000007FEF5FCA000-memory.dmp

    Filesize

    2.5MB

  • memory/2040-2-0x0000000000000000-mapping.dmp

  • memory/2040-3-0x0000000075DE1000-0x0000000075DE3000-memory.dmp

    Filesize

    8KB

  • memory/2040-4-0x0000000074750000-0x0000000074783000-memory.dmp

    Filesize

    204KB

  • memory/2040-5-0x0000000000120000-0x0000000000126000-memory.dmp

    Filesize

    24KB

  • memory/2040-6-0x0000000074750000-0x000000007476F000-memory.dmp

    Filesize

    124KB