Analysis

  • max time kernel
    48s
  • max time network
    56s
  • platform
    windows10_x64
  • resource
    win10v20210408
  • submitted
    21-04-2021 18:07

General

  • Target

    604197a2332a0cba7bc7cb1dd981cd9b6ee08d7a9e9abe6bbd5ae37f83f95513.dll

  • Size

    157KB

  • MD5

    a42994b30648bb8f8b6011486f8a29d5

  • SHA1

    5b80aab2ba54acf786073d34cbf8bbc9a1839be7

  • SHA256

    604197a2332a0cba7bc7cb1dd981cd9b6ee08d7a9e9abe6bbd5ae37f83f95513

  • SHA512

    97e8890e2c1ad763c766f0981c7b723d46d84a177fdb7b8c01c1eac52675742806017804d8778cfbc81edbf22e95fcd8e33f7f5ba041194d0db3d1738fae2a5b

Malware Config

Extracted

Family

dridex

Botnet

40112

C2

159.8.59.82:443

51.91.156.39:2303

67.196.50.240:8172

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\604197a2332a0cba7bc7cb1dd981cd9b6ee08d7a9e9abe6bbd5ae37f83f95513.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:4820
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\604197a2332a0cba7bc7cb1dd981cd9b6ee08d7a9e9abe6bbd5ae37f83f95513.dll,#1
      2⤵
      • Checks whether UAC is enabled
      PID:4892

Network

MITRE ATT&CK Matrix ATT&CK v6

Discovery

System Information Discovery

1
T1082

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/4892-114-0x0000000000000000-mapping.dmp
  • memory/4892-115-0x0000000073880000-0x00000000738AD000-memory.dmp
    Filesize

    180KB

  • memory/4892-117-0x00000000032B0000-0x000000000335E000-memory.dmp
    Filesize

    696KB