Analysis

  • max time kernel
    125s
  • max time network
    11s
  • platform
    windows7_x64
  • resource
    win7v20201028
  • submitted
    22/01/2021, 22:08

General

  • Target
    aRcEZj.tmp.dll
  • Size 552KB
  • Sample210122-dp3n522ade
  • SHA256 0f833d08789b9c7b5c9d23f4ddd30879ed7adc0407fe4dbb4b68aa95459b42fb
  • MD5 SHA1 SHA512

Malware Config

Extracted

Family
  • qakbot

Botnet
  • krk01

Campaign
  • 1611226305

C2
  • 193.248.221.184:2222

  • 69.123.179.70:443

  • 197.45.110.165:995

  • 85.132.36.111:2222

  • 88.233.91.244:443

  • 149.28.98.196:2222

  • 207.246.116.237:995

  • 45.32.211.207:995

  • 149.28.101.90:995

  • 207.246.116.237:2222

  • 144.202.38.185:443

  • 149.28.101.90:8443

  • 45.32.211.207:8443

  • 149.28.101.90:2222

  • 207.246.77.75:443

  • 207.246.116.237:443

  • 45.63.107.192:2222

  • 207.246.77.75:8443

  • 207.246.77.75:2222

  • 149.28.99.97:995

Signatures

  • Qakbot/Qbot

    Qbot or Qakbot is a sophisticated worm with banking capabilities.

  • Creates scheduled task(s) 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious behavior: MapViewOfSection 1 IoCs
  • Suspicious use of WriteProcessMemory 17 IoCs

Processes

  • C:\Windows\system32\regsvr32.exe
    regsvr32 /s C:\Users\Admin\AppData\Local\Temp\aRcEZj.tmp.dll
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1880
    • C:\Windows\SysWOW64\regsvr32.exe
      /s C:\Users\Admin\AppData\Local\Temp\aRcEZj.tmp.dll
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: MapViewOfSection
      • Suspicious use of WriteProcessMemory
      PID:1232
      • C:\Windows\SysWOW64\explorer.exe
        C:\Windows\SysWOW64\explorer.exe
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:1616
        • C:\Windows\SysWOW64\schtasks.exe
          "C:\Windows\system32\schtasks.exe" /Create /RU "NT AUTHORITY\SYSTEM" /tn fmmhcbmc /tr "regsvr32.exe -s \"C:\Users\Admin\AppData\Local\Temp\aRcEZj.tmp.dll\"" /SC ONCE /Z /ST 23:08 /ET 23:20
          4⤵
          • Creates scheduled task(s)
          PID:1612

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        memory/1232-4-0x00000000767E1000-0x00000000767E3000-memory.dmp

        memory/1232-5-0x0000000010000000-0x0000000010035000-memory.dmp

        memory/1232-6-0x0000000000180000-0x0000000000181000-memory.dmp

        memory/1616-9-0x0000000074B11000-0x0000000074B13000-memory.dmp

        memory/1616-10-0x0000000000310000-0x0000000000345000-memory.dmp

        memory/1616-12-0x0000000000310000-0x0000000000345000-memory.dmp

        memory/1880-2-0x000007FEFC1D1000-0x000007FEFC1D3000-memory.dmp