Analysis

  • max time kernel
    18s
  • max time network
    124s
  • platform
    windows10_x64
  • resource
    win10v20210410
  • submitted
    15/06/2021, 15:20

General

  • Target

    87f9eac0a228e857cd89332378a23763a7b7c49b79438d80588fbd45207285b5.dll

  • Size

    172KB

  • MD5

    4f9e011f1056bbe45a3bd6bf74ed62c6

  • SHA1

    a3b99c21b728c952e7b02c34b4a4c6de546c2f4a

  • SHA256

    87f9eac0a228e857cd89332378a23763a7b7c49b79438d80588fbd45207285b5

  • SHA512

    1bcae9b09c77731152bac599f57b6739068477e0ac242bbdb3307a9d5ff09454f4279aacd7b7915b93be90fe78bde139f820b58a518d981cd3b8f1970677e4fa

Malware Config

Extracted

Family

dridex

Botnet

40112

C2

210.65.244.187:443

162.241.41.92:2303

46.231.204.10:8172

185.183.159.100:4125

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.

  • Program crash 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 14 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\87f9eac0a228e857cd89332378a23763a7b7c49b79438d80588fbd45207285b5.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:4452
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\87f9eac0a228e857cd89332378a23763a7b7c49b79438d80588fbd45207285b5.dll,#1
      2⤵
        PID:4524
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 4524 -s 684
          3⤵
          • Program crash
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:4136

    Network

          MITRE ATT&CK Matrix

          Replay Monitor

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          Downloads

          • memory/4524-115-0x0000000073820000-0x0000000073850000-memory.dmp

            Filesize

            192KB

          • memory/4524-117-0x0000000001140000-0x0000000001146000-memory.dmp

            Filesize

            24KB