Analysis

  • max time kernel
    131s
  • max time network
    110s
  • platform
    windows10_x64
  • resource
    win10v20210408
  • submitted
    02-05-2021 01:36

General

  • Target

    k.exe.dll

  • Size

    460KB

  • MD5

    4ca59ce1eaccde2a28f140a0ebe33206

  • SHA1

    a2fe1117858eaeb990eec0d9202f0c0f1116f6d4

  • SHA256

    6ee4d0b3b4a397af8a6539b7f8d5a716de264bbed26c54ad6e7f9537468cf8cc

  • SHA512

    da43002d976e7c5dcd88fbd9d5aa964578e31fb4ff441907e395d271054edf97d95b7d00289dd158e2630830714d994bcd43865b26f33d294165be7f4b7808e4

Malware Config

Extracted

Family

qakbot

Version

402.12

Botnet

tr

Campaign

1618935072

C2

140.82.49.12:443

190.85.91.154:443

96.37.113.36:993

71.41.184.10:3389

186.31.46.121:443

73.25.124.140:2222

109.12.111.14:443

24.229.150.54:995

45.32.211.207:443

45.77.117.108:443

45.77.117.108:8443

149.28.98.196:443

149.28.98.196:2222

144.202.38.185:443

144.202.38.185:995

45.32.211.207:995

207.246.116.237:995

149.28.99.97:995

45.63.107.192:2222

149.28.101.90:995

Signatures

  • Qakbot/Qbot

    Qbot or Qakbot is a sophisticated worm with banking capabilities.

  • Loads dropped DLL 1 IoCs
  • Program crash 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 16 IoCs
  • Suspicious behavior: MapViewOfSection 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 14 IoCs

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\k.exe.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:4044
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\k.exe.dll,#1
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: MapViewOfSection
      • Suspicious use of WriteProcessMemory
      PID:3700
      • C:\Windows\SysWOW64\explorer.exe
        C:\Windows\SysWOW64\explorer.exe
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:3644
        • C:\Windows\SysWOW64\schtasks.exe
          "C:\Windows\system32\schtasks.exe" /Create /RU "NT AUTHORITY\SYSTEM" /tn sagovasli /tr "regsvr32.exe -s \"C:\Users\Admin\AppData\Local\Temp\k.exe.dll\"" /SC ONCE /Z /ST 03:41 /ET 03:53
          4⤵
          • Creates scheduled task(s)
          PID:200
  • \??\c:\windows\system32\regsvr32.exe
    regsvr32.exe -s "C:\Users\Admin\AppData\Local\Temp\k.exe.dll"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:3780
    • C:\Windows\SysWOW64\regsvr32.exe
      -s "C:\Users\Admin\AppData\Local\Temp\k.exe.dll"
      2⤵
      • Loads dropped DLL
      PID:2128
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 2128 -s 596
        3⤵
        • Program crash
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:644

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • memory/200-119-0x0000000000000000-mapping.dmp

  • memory/2128-123-0x0000000000000000-mapping.dmp

  • memory/3644-117-0x0000000000000000-mapping.dmp

  • memory/3644-118-0x0000000003250000-0x0000000003289000-memory.dmp

    Filesize

    228KB

  • memory/3700-114-0x0000000000000000-mapping.dmp

  • memory/3700-115-0x00000000008E0000-0x0000000000953000-memory.dmp

    Filesize

    460KB

  • memory/3700-116-0x0000000010000000-0x0000000010079000-memory.dmp

    Filesize

    484KB