Analysis

  • max time kernel
    129s
  • max time network
    8s
  • platform
    windows7_x64
  • resource
    win7v20201028
  • submitted
    02-03-2021 12:57

General

  • Target

    IEUDLK.CJF.dll

  • Size

    424KB

  • MD5

    97e6abcad2140619ff150d6253f62b8f

  • SHA1

    0762a2db618f5dcc403139b671222aecb7c4aaf1

  • SHA256

    24753d9f0d691b6d582da3e301b98f75abbdb5382bb871ee00713c5029c56d44

  • SHA512

    54d55de10d22086a0d77cad5b833ceee0b1bcd62062e56c0af5deaa64b0bbc84f45ac47905b833967b611a3e41eeb7f5ccc437619648cf69f8f1f04d50faaf08

Malware Config

Extracted

Family

qakbot

Botnet

tr

Campaign

1614598087

C2

24.95.61.62:443

89.3.198.238:443

196.151.252.84:443

90.65.236.181:2222

2.232.253.79:995

217.133.54.140:32100

195.43.173.70:443

84.247.55.190:8443

136.232.34.70:443

45.63.107.192:443

45.77.115.208:443

149.28.98.196:995

45.32.211.207:8443

149.28.98.196:443

149.28.99.97:443

45.63.107.192:2222

207.246.77.75:443

207.246.77.75:8443

45.77.117.108:443

45.32.211.207:995

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 29 IoCs

Processes

  • C:\Windows\system32\regsvr32.exe
    regsvr32 /s C:\Users\Admin\AppData\Local\Temp\IEUDLK.CJF.dll
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2008
    • C:\Windows\SysWOW64\regsvr32.exe
      /s C:\Users\Admin\AppData\Local\Temp\IEUDLK.CJF.dll
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: MapViewOfSection
      • Suspicious use of WriteProcessMemory
      PID:1512
      • C:\Windows\SysWOW64\explorer.exe
        C:\Windows\SysWOW64\explorer.exe
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:544
        • C:\Windows\SysWOW64\schtasks.exe
          "C:\Windows\system32\schtasks.exe" /Create /RU "NT AUTHORITY\SYSTEM" /tn ieoqesk /tr "regsvr32.exe -s \"C:\Users\Admin\AppData\Local\Temp\IEUDLK.CJF.dll\"" /SC ONCE /Z /ST 12:55 /ET 13:07
          4⤵
          • Creates scheduled task(s)
          PID:1656
  • C:\Windows\system32\taskeng.exe
    taskeng.exe {3E0C2BC4-7F45-46F4-8E27-BC3661EFB620} S-1-5-18:NT AUTHORITY\System:Service:
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1476
    • C:\Windows\system32\regsvr32.exe
      regsvr32.exe -s "C:\Users\Admin\AppData\Local\Temp\IEUDLK.CJF.dll"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1144
      • C:\Windows\SysWOW64\regsvr32.exe
        -s "C:\Users\Admin\AppData\Local\Temp\IEUDLK.CJF.dll"
        3⤵
        • Loads dropped DLL
        PID:1620

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\IEUDLK.CJF.dll

    MD5

    124b74398650933bb47190a8cdee8d1b

    SHA1

    ad6a4e26763d25a4c101a3eabd98bcf105eb79b0

    SHA256

    0158409723e1ffc9ce2ff7db5c5721434dfcf49d91e7457a01d609ec404c85f6

    SHA512

    77d4edd8280d2cfeab55d36a008d6abdd50b7bc6af70a8943b42bdbb61c4838719e4855bb1d72b859e8ecbc390b2113d2e541047b8881f2bcc51d761967643d6

  • \Users\Admin\AppData\Local\Temp\IEUDLK.CJF.dll

    MD5

    124b74398650933bb47190a8cdee8d1b

    SHA1

    ad6a4e26763d25a4c101a3eabd98bcf105eb79b0

    SHA256

    0158409723e1ffc9ce2ff7db5c5721434dfcf49d91e7457a01d609ec404c85f6

    SHA512

    77d4edd8280d2cfeab55d36a008d6abdd50b7bc6af70a8943b42bdbb61c4838719e4855bb1d72b859e8ecbc390b2113d2e541047b8881f2bcc51d761967643d6

  • memory/544-12-0x0000000000080000-0x00000000000B5000-memory.dmp

    Filesize

    212KB

  • memory/544-7-0x0000000000000000-mapping.dmp

  • memory/544-9-0x0000000074A81000-0x0000000074A83000-memory.dmp

    Filesize

    8KB

  • memory/544-11-0x0000000000080000-0x00000000000B5000-memory.dmp

    Filesize

    212KB

  • memory/1144-13-0x0000000000000000-mapping.dmp

  • memory/1512-5-0x0000000000180000-0x0000000000181000-memory.dmp

    Filesize

    4KB

  • memory/1512-6-0x0000000001DD0000-0x0000000001E5D000-memory.dmp

    Filesize

    564KB

  • memory/1512-4-0x0000000076641000-0x0000000076643000-memory.dmp

    Filesize

    8KB

  • memory/1512-3-0x0000000000000000-mapping.dmp

  • memory/1620-16-0x0000000000000000-mapping.dmp

  • memory/1656-10-0x0000000000000000-mapping.dmp

  • memory/2008-2-0x000007FEFC371000-0x000007FEFC373000-memory.dmp

    Filesize

    8KB