Analysis

  • max time kernel
    98s
  • max time network
    100s
  • platform
    windows10_x64
  • resource
    win10v20210408
  • submitted
    21-04-2021 18:17

General

  • Target

    9ba499a42056bd73b8c61dd0b716570211b3389ef4be7869f38f02c309613e51.dll

  • Size

    154KB

  • MD5

    5aad387340c592e059dea731da56f7ef

  • SHA1

    efae87e3d52a81b877c55716c8a7e6c16ded19fb

  • SHA256

    9ba499a42056bd73b8c61dd0b716570211b3389ef4be7869f38f02c309613e51

  • SHA512

    b659e0dfdbc55dcc0b6ed54e6d33d5e4b64c2e6cd66ee45fbec9297de0e65ae8a8e11b241d90142e8d4fa8f156d6aafce4d4d8a13e0319dcaa3ee58dc26285c1

Malware Config

Extracted

Family

dridex

Botnet

40111

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\9ba499a42056bd73b8c61dd0b716570211b3389ef4be7869f38f02c309613e51.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:4656
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\9ba499a42056bd73b8c61dd0b716570211b3389ef4be7869f38f02c309613e51.dll,#1
      2⤵
      • Checks whether UAC is enabled
      PID:4704

Network

MITRE ATT&CK Matrix ATT&CK v6

Discovery

System Information Discovery

1
T1082

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/4704-114-0x0000000000000000-mapping.dmp
  • memory/4704-115-0x0000000073C30000-0x0000000073C5D000-memory.dmp
    Filesize

    180KB

  • memory/4704-117-0x00000000032C0000-0x000000000340A000-memory.dmp
    Filesize

    1.3MB