Analysis

  • max time kernel
    50s
  • max time network
    87s
  • platform
    windows7_x64
  • resource
    win7v20201028
  • submitted
    04-03-2021 09:04

General

  • Target

    486770fa5f6579da6c4e36aa99ab1888bfd6769149375a7ba7e2ab918754a190.dll

  • Size

    196KB

  • MD5

    057473d1a8fbb4d0dc062d7d4f18d3a9

  • SHA1

    dddd727eb39caa3622626530f2108f2aa45ccbe1

  • SHA256

    486770fa5f6579da6c4e36aa99ab1888bfd6769149375a7ba7e2ab918754a190

  • SHA512

    e8ecbc3ed5e53c519de33b55fd4790c9e7a606cc605c16fa04245548fc5447f5ac1c54e51839dfbfaa8f8472312e80345b9457f54f0ed8eeda87e9e60d30bed5

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\486770fa5f6579da6c4e36aa99ab1888bfd6769149375a7ba7e2ab918754a190.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:844
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\486770fa5f6579da6c4e36aa99ab1888bfd6769149375a7ba7e2ab918754a190.dll,#1
      2⤵
      • Blocklisted process makes network request
      • Checks whether UAC is enabled
      PID:1800

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/656-7-0x000007FEF81B0000-0x000007FEF842A000-memory.dmp
    Filesize

    2.5MB

  • memory/1800-0-0x0000000000000000-mapping.dmp
  • memory/1800-1-0x00000000761E1000-0x00000000761E3000-memory.dmp
    Filesize

    8KB

  • memory/1800-4-0x0000000074A10000-0x0000000074A43000-memory.dmp
    Filesize

    204KB

  • memory/1800-5-0x0000000000160000-0x0000000000166000-memory.dmp
    Filesize

    24KB

  • memory/1800-6-0x0000000074A10000-0x0000000074A2F000-memory.dmp
    Filesize

    124KB