Analysis

  • max time kernel
    47s
  • max time network
    54s
  • platform
    windows10_x64
  • resource
    win10v20210408
  • submitted
    21-04-2021 23:47

General

  • Target

    f6c9e5e3f14ac3ae283cfbfd03ee2220669f75c00f8eb1d094e4bda848d10dc5.dll

  • Size

    162KB

  • MD5

    e19c2d61dacb54a5e910ca0bceddf4e5

  • SHA1

    706b1069f9f271a5be6bbdf66a692f1ba3b57a05

  • SHA256

    f6c9e5e3f14ac3ae283cfbfd03ee2220669f75c00f8eb1d094e4bda848d10dc5

  • SHA512

    1155c60085aeb84f1f7c81044c4d2ea14957cc87bd26ee2d689f42cbc2635312231243480f3e6517b031209fad05f45f4cfe529a80b66ce841e70177a65ccf5b

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\f6c9e5e3f14ac3ae283cfbfd03ee2220669f75c00f8eb1d094e4bda848d10dc5.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:784
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\f6c9e5e3f14ac3ae283cfbfd03ee2220669f75c00f8eb1d094e4bda848d10dc5.dll,#1
      2⤵
      • Checks whether UAC is enabled
      PID:1016

Network

MITRE ATT&CK Matrix ATT&CK v6

Discovery

System Information Discovery

1
T1082

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/1016-114-0x0000000000000000-mapping.dmp
  • memory/1016-115-0x0000000074400000-0x000000007442E000-memory.dmp
    Filesize

    184KB

  • memory/1016-117-0x0000000000970000-0x0000000000ABA000-memory.dmp
    Filesize

    1.3MB