Analysis

  • max time kernel
    53s
  • max time network
    56s
  • platform
    windows7_x64
  • resource
    win7v20201028
  • submitted
    25-02-2021 06:42

General

  • Target

    e265bbda199d75b564b823038f80d49c1df46ccdb6953f72676df555847edd60.dll

  • Size

    188KB

  • MD5

    0a5c4f1b33c91de478499f3ee58dcabf

  • SHA1

    3645ba3eb69558119354189a0c132d5cc781d749

  • SHA256

    e265bbda199d75b564b823038f80d49c1df46ccdb6953f72676df555847edd60

  • SHA512

    8659421da509b15c6dd2387b7ab8508ebf3acaa4f1148fed69ada454d7cd44b3eb61d87d34032fd887222294c53f1a1c26770afb33408540ba2c4877ce594fc0

Malware Config

Extracted

Family

dridex

Botnet

111

C2

209.151.236.42:443

91.121.94.86:8172

5.189.144.136:6516

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\e265bbda199d75b564b823038f80d49c1df46ccdb6953f72676df555847edd60.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1856
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\e265bbda199d75b564b823038f80d49c1df46ccdb6953f72676df555847edd60.dll,#1
      2⤵
      • Blocklisted process makes network request
      • Checks whether UAC is enabled
      PID:2024

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/1648-8-0x000007FEF67C0000-0x000007FEF6A3A000-memory.dmp
    Filesize

    2.5MB

  • memory/2024-2-0x0000000000000000-mapping.dmp
  • memory/2024-3-0x00000000767E1000-0x00000000767E3000-memory.dmp
    Filesize

    8KB

  • memory/2024-4-0x0000000074EE0000-0x0000000075083000-memory.dmp
    Filesize

    1.6MB

  • memory/2024-5-0x0000000075250000-0x0000000075281000-memory.dmp
    Filesize

    196KB

  • memory/2024-6-0x00000000002B0000-0x00000000002B6000-memory.dmp
    Filesize

    24KB

  • memory/2024-7-0x0000000075250000-0x000000007526F000-memory.dmp
    Filesize

    124KB