Analysis

  • max time kernel
    39s
  • max time network
    48s
  • platform
    windows10_x64
  • resource
    win10v20210408
  • submitted
    21-04-2021 23:59

General

  • Target

    b4097f699e2906dd5548bd1262b38a073afe9e887b916070ea302b009b331b35.dll

  • Size

    162KB

  • MD5

    559907fb12236bdd365daeffafd24ea4

  • SHA1

    5f12e9493f098ca5e4f9a1c80db1ecec0d2e015a

  • SHA256

    b4097f699e2906dd5548bd1262b38a073afe9e887b916070ea302b009b331b35

  • SHA512

    7af35273ad4dc28927c7fff6f510f96514cf103d9965a11063505a0f213c2e0f6af24ffeecfda83da2d882aa7179bf1a1ef3088416e280ac996584f64bdcd013

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\b4097f699e2906dd5548bd1262b38a073afe9e887b916070ea302b009b331b35.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:908
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\b4097f699e2906dd5548bd1262b38a073afe9e887b916070ea302b009b331b35.dll,#1
      2⤵
      • Checks whether UAC is enabled
      PID:1200

Network

MITRE ATT&CK Matrix ATT&CK v6

Discovery

System Information Discovery

1
T1082

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/1200-114-0x0000000000000000-mapping.dmp
  • memory/1200-115-0x0000000074160000-0x000000007418E000-memory.dmp
    Filesize

    184KB

  • memory/1200-117-0x00000000030E0000-0x00000000030E6000-memory.dmp
    Filesize

    24KB