Analysis

  • max time kernel
    129s
  • max time network
    15s
  • platform
    windows7_x64
  • resource
    win7v20210408
  • submitted
    05/05/2021, 22:04

General

  • Target
    3fc4c9ad_by_Libranalysis.dll
  • Size 161KB
  • Sample210505-676vllxpvx
  • SHA256 764f41b29285d1ad19f7bc5f0ad5d34255951cda7e24462e80bfe45847dbd545
  • MD5 SHA1 SHA512

Malware Config

Extracted

Family
  • dridex

Botnet
  • 22202

C2
  • 45.55.134.126:443

  • 67.207.83.96:8172

  • 193.160.214.95:4125

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 5 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\3fc4c9ad_by_Libranalysis.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1996
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\3fc4c9ad_by_Libranalysis.dll,#1
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1296
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 1296 -s 264
        3⤵
        • Program crash
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious behavior: GetForegroundWindowSpam
        • Suspicious use of AdjustPrivilegeToken
        PID:600

Network

        MITRE ATT&CK Matrix

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        memory/600-66-0x00000000003F0000-0x00000000003F1000-memory.dmp

        memory/1296-61-0x00000000767B1000-0x00000000767B3000-memory.dmp

        memory/1296-62-0x0000000010000000-0x000000001002E000-memory.dmp

        memory/1296-65-0x00000000001A0000-0x00000000001A6000-memory.dmp