Analysis

  • max time kernel
    123s
  • max time network
    143s
  • platform
    windows7_x64
  • resource
    win7-en-20211208
  • submitted
    20-12-2021 23:19

General

  • Target

    SecuriteInfo.com.W32.AIDetect.malware1.19988.15866.dll

  • Size

    468KB

  • MD5

    eb72af61199b77c1ef42f61b43c28abf

  • SHA1

    771925b37acbab76dfb973f24a0b08bc8c224fb3

  • SHA256

    649b719b3ee467ea1a1c824cfc5db7a1eae33b05b9182ee4190541d32bf96b8d

  • SHA512

    49b49e506b63d918fe077b4c620be9eca20b940db74f8527511f8b0863fa6326084fc2772d21982e4f52a9a6efcdd5503bd9f247a631fe615c7e2abc5dc3310a

Malware Config

Extracted

Family

dridex

Botnet

22206

C2

120.50.40.185:443

139.59.14.223:8172

121.40.104.209:6602

139.162.113.169:593

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\SecuriteInfo.com.W32.AIDetect.malware1.19988.15866.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:740
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.W32.AIDetect.malware1.19988.15866.dll,#1
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1864
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 1864 -s 248
        3⤵
        • Program crash
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious behavior: GetForegroundWindowSpam
        • Suspicious use of AdjustPrivilegeToken
        PID:1660

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

  • memory/1660-59-0x0000000000000000-mapping.dmp
  • memory/1660-60-0x0000000001C50000-0x0000000001C51000-memory.dmp
    Filesize

    4KB

  • memory/1864-54-0x0000000000000000-mapping.dmp
  • memory/1864-55-0x0000000076041000-0x0000000076043000-memory.dmp
    Filesize

    8KB

  • memory/1864-56-0x00000000747D0000-0x0000000074846000-memory.dmp
    Filesize

    472KB

  • memory/1864-58-0x00000000001F0000-0x00000000001F6000-memory.dmp
    Filesize

    24KB