Analysis

  • max time kernel
    27s
  • max time network
    85s
  • platform
    windows7_x64
  • resource
    win7v20201028
  • submitted
    06-03-2021 14:12

General

  • Target

    cabc93925c2ba66db79e66fcb9adc1236a8851a3ac4d94638db2c13f9cb10dbc.dll

  • Size

    168KB

  • MD5

    2e18d0fc31d4d1f5ae8c6e72ccdcad7f

  • SHA1

    39e92914570abf24da063452f11099fbbb1f8330

  • SHA256

    cabc93925c2ba66db79e66fcb9adc1236a8851a3ac4d94638db2c13f9cb10dbc

  • SHA512

    5be4feb47da3584932dcd20fcfc9ed612c4c71b91a0490a76e368ad31c406a65feec2e7d3e3b9b2418fa49d81ad8688150a9bceffe195de0f6545e3b14ef6929

Malware Config

Extracted

Family

dridex

Botnet

111

C2

173.203.78.138:443

217.160.107.189:6601

77.220.64.150:5037

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\cabc93925c2ba66db79e66fcb9adc1236a8851a3ac4d94638db2c13f9cb10dbc.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:776
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\cabc93925c2ba66db79e66fcb9adc1236a8851a3ac4d94638db2c13f9cb10dbc.dll,#1
      2⤵
      • Blocklisted process makes network request
      • Checks whether UAC is enabled
      PID:2008

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/1524-7-0x000007FEF74B0000-0x000007FEF772A000-memory.dmp
    Filesize

    2.5MB

  • memory/2008-3-0x0000000076071000-0x0000000076073000-memory.dmp
    Filesize

    8KB

  • memory/2008-2-0x0000000000000000-mapping.dmp
  • memory/2008-4-0x0000000074C00000-0x0000000074C2C000-memory.dmp
    Filesize

    176KB

  • memory/2008-5-0x0000000000670000-0x0000000000676000-memory.dmp
    Filesize

    24KB

  • memory/2008-6-0x0000000074C00000-0x0000000074C1F000-memory.dmp
    Filesize

    124KB