Analysis

  • max time kernel
    130s
  • max time network
    114s
  • platform
    windows10_x64
  • resource
    win10v20210408
  • submitted
    12/10/2021, 13:05

General

  • Target
    ocrafh.html.dll
  • Size 819KB
  • Sample211012-qbw4facdd7
  • SHA256 956ecb4afa437eafe56f958b34b6a78303ad626baee004715dc6634b7546bf85
  • MD5 SHA1 SHA512

Malware Config

Extracted

Family
  • qakbot

Version
  • 402.363

Botnet
  • tr

Campaign
  • 1633597626

C2
  • 120.150.218.241:995

  • 185.250.148.74:443

  • 89.137.52.44:443

  • 66.103.170.104:2222

  • 86.8.177.143:443

  • 216.201.162.158:443

  • 174.54.193.186:443

  • 103.148.120.144:443

  • 188.50.169.158:443

  • 124.123.42.115:2222

  • 140.82.49.12:443

  • 199.27.127.129:443

  • 81.241.252.59:2078

  • 209.142.97.161:995

  • 209.50.20.255:443

  • 73.230.205.91:443

  • 200.232.214.222:995

  • 103.142.10.177:443

  • 2.222.167.138:443

  • 41.228.22.180:443

Signatures

  • Qakbot/Qbot

    Qbot or Qakbot is a sophisticated worm with banking capabilities.

  • Loads dropped DLL 1 IoCs
  • 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 14 IoCs

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\ocrafh.html.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:532
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\ocrafh.html.dll,#1
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: MapViewOfSection
      • Suspicious use of WriteProcessMemory
      PID:3156
      • C:\Windows\SysWOW64\explorer.exe
        C:\Windows\SysWOW64\explorer.exe
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:3016
        • C:\Windows\SysWOW64\schtasks.exe
          "C:\Windows\system32\schtasks.exe" /Create /RU "NT AUTHORITY\SYSTEM" /tn aernstdhol /tr "regsvr32.exe -s \"C:\Users\Admin\AppData\Local\Temp\ocrafh.html.dll\"" /SC ONCE /Z /ST 20:24 /ET 20:36
          4⤵
          • Creates scheduled task(s)
          PID:3600
  • \??\c:\windows\system32\regsvr32.exe
    regsvr32.exe -s "C:\Users\Admin\AppData\Local\Temp\ocrafh.html.dll"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2004
    • C:\Windows\SysWOW64\regsvr32.exe
      -s "C:\Users\Admin\AppData\Local\Temp\ocrafh.html.dll"
      2⤵
      • Loads dropped DLL
      PID:2124

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        memory/3016-123-0x0000000000160000-0x0000000000161000-memory.dmp

        memory/3016-120-0x0000000000960000-0x0000000000981000-memory.dmp

        memory/3016-122-0x0000000000160000-0x0000000000161000-memory.dmp

        memory/3156-118-0x00000000034F0000-0x00000000034F1000-memory.dmp

        memory/3156-116-0x0000000074240000-0x0000000074261000-memory.dmp

        memory/3156-117-0x0000000074240000-0x00000000743B1000-memory.dmp

        memory/3156-115-0x0000000074240000-0x00000000743B1000-memory.dmp