Analysis

  • max time kernel
    117s
  • max time network
    123s
  • platform
    windows7_x64
  • resource
    win7-en-20211208
  • submitted
    24-12-2021 08:11

General

  • Target

    63c22ce32346e029fa5a1ec1ae619d0f.dll

  • Size

    552KB

  • MD5

    63c22ce32346e029fa5a1ec1ae619d0f

  • SHA1

    222cf86c3b59f466292bb734be308cda77c3ddff

  • SHA256

    efbd76616dc1cd8210a8c54611f4ffa88e635f0f6ded2f8ff48311737635edda

  • SHA512

    413efdf48b13d8cd6cb9f799215a7c34588995ba5f48c4db855ad332c3b4b6b7c753ff361d0cd850a728ec68c76b47e96aaac604f3bdb069920d930c422bd0f4

Malware Config

Extracted

Family

dridex

Botnet

22201

C2

144.91.122.102:443

85.10.248.28:593

185.4.135.27:5228

80.211.3.13:8116

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 4 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 11 IoCs

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\63c22ce32346e029fa5a1ec1ae619d0f.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1260
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\63c22ce32346e029fa5a1ec1ae619d0f.dll,#1
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1472
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 1472 -s 224
        3⤵
        • Program crash
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious behavior: GetForegroundWindowSpam
        • Suspicious use of AdjustPrivilegeToken
        PID:1112

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

  • memory/1112-59-0x0000000000000000-mapping.dmp
  • memory/1112-61-0x0000000000350000-0x0000000000351000-memory.dmp
    Filesize

    4KB

  • memory/1472-54-0x0000000000000000-mapping.dmp
  • memory/1472-55-0x0000000075D61000-0x0000000075D63000-memory.dmp
    Filesize

    8KB

  • memory/1472-56-0x0000000075060000-0x00000000750EC000-memory.dmp
    Filesize

    560KB

  • memory/1472-58-0x0000000000130000-0x0000000000136000-memory.dmp
    Filesize

    24KB