Analysis

  • max time kernel
    119s
  • max time network
    9s
  • platform
    windows7_x64
  • resource
    win7v20201028
  • submitted
    24-02-2021 20:42

General

  • Target

    d4c575a5d522c8e2cc79685a526ce185d021aef9299c019b0ac52c4e10769ccf.dll

  • Size

    565KB

  • MD5

    d095925bb57851b311351b95e8d95457

  • SHA1

    a2816ed524260b45c62d9c1efe938af952d966ab

  • SHA256

    d4c575a5d522c8e2cc79685a526ce185d021aef9299c019b0ac52c4e10769ccf

  • SHA512

    ce9cc91ab9c5a1ee97d17a323536b5a93ef323274084e4f2c0d371ac89b12c27256faa03c46254cae96088b7b96b78dd10a242f9ed561ee9993a274992efd38e

Malware Config

Extracted

Family

qakbot

Botnet

krk01

Campaign

1611569149

C2

31.5.21.66:995

89.3.198.238:443

202.188.138.162:443

188.24.128.253:443

175.141.219.71:443

151.60.15.183:443

184.189.122.72:443

80.227.5.70:443

140.82.49.12:443

89.211.241.100:995

81.97.154.100:443

77.27.174.49:995

92.154.83.96:2078

42.3.8.54:443

71.187.170.235:443

46.153.36.53:995

71.182.142.63:443

105.186.102.16:443

50.244.112.106:443

78.63.226.32:443

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 29 IoCs

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\d4c575a5d522c8e2cc79685a526ce185d021aef9299c019b0ac52c4e10769ccf.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:292
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\d4c575a5d522c8e2cc79685a526ce185d021aef9299c019b0ac52c4e10769ccf.dll,#1
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: MapViewOfSection
      • Suspicious use of WriteProcessMemory
      PID:1924
      • C:\Windows\SysWOW64\explorer.exe
        C:\Windows\SysWOW64\explorer.exe
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:1504
        • C:\Windows\SysWOW64\schtasks.exe
          "C:\Windows\system32\schtasks.exe" /Create /RU "NT AUTHORITY\SYSTEM" /tn cefstvkx /tr "regsvr32.exe -s \"C:\Users\Admin\AppData\Local\Temp\d4c575a5d522c8e2cc79685a526ce185d021aef9299c019b0ac52c4e10769ccf.dll\"" /SC ONCE /Z /ST 20:43 /ET 20:55
          4⤵
          • Creates scheduled task(s)
          PID:1648
  • C:\Windows\system32\taskeng.exe
    taskeng.exe {D61F0B50-25EB-4411-8F14-82CD5A78CADA} S-1-5-18:NT AUTHORITY\System:Service:
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1956
    • C:\Windows\system32\regsvr32.exe
      regsvr32.exe -s "C:\Users\Admin\AppData\Local\Temp\d4c575a5d522c8e2cc79685a526ce185d021aef9299c019b0ac52c4e10769ccf.dll"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1472
      • C:\Windows\SysWOW64\regsvr32.exe
        -s "C:\Users\Admin\AppData\Local\Temp\d4c575a5d522c8e2cc79685a526ce185d021aef9299c019b0ac52c4e10769ccf.dll"
        3⤵
        • Loads dropped DLL
        PID:1888

Network

MITRE ATT&CK Matrix ATT&CK v6

Execution

Scheduled Task

1
T1053

Persistence

Scheduled Task

1
T1053

Privilege Escalation

Scheduled Task

1
T1053

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\d4c575a5d522c8e2cc79685a526ce185d021aef9299c019b0ac52c4e10769ccf.dll
    MD5

    8bac227baa397ac730b4c65c19a79fe5

    SHA1

    f8735861ae35590e841daf67b43787a054339435

    SHA256

    bf3872c7e85d2f9d330aa6dc52f54e4003fadbed386c75fe3f22713269302e1b

    SHA512

    72b7f7c54436f38e6baa71f329e4b79b63e3987f6f61322a0128356afd23ffe64d126cea43385cfeba02d6971ce293ad35c8236236c3073495372ac2ca56de80

  • \Users\Admin\AppData\Local\Temp\d4c575a5d522c8e2cc79685a526ce185d021aef9299c019b0ac52c4e10769ccf.dll
    MD5

    8bac227baa397ac730b4c65c19a79fe5

    SHA1

    f8735861ae35590e841daf67b43787a054339435

    SHA256

    bf3872c7e85d2f9d330aa6dc52f54e4003fadbed386c75fe3f22713269302e1b

    SHA512

    72b7f7c54436f38e6baa71f329e4b79b63e3987f6f61322a0128356afd23ffe64d126cea43385cfeba02d6971ce293ad35c8236236c3073495372ac2ca56de80

  • memory/1472-12-0x0000000000000000-mapping.dmp
  • memory/1472-13-0x000007FEFC4E1000-0x000007FEFC4E3000-memory.dmp
    Filesize

    8KB

  • memory/1504-9-0x00000000000F0000-0x0000000000125000-memory.dmp
    Filesize

    212KB

  • memory/1504-8-0x0000000075281000-0x0000000075283000-memory.dmp
    Filesize

    8KB

  • memory/1504-11-0x00000000000F0000-0x0000000000125000-memory.dmp
    Filesize

    212KB

  • memory/1504-6-0x0000000000000000-mapping.dmp
  • memory/1648-10-0x0000000000000000-mapping.dmp
  • memory/1888-15-0x0000000000000000-mapping.dmp
  • memory/1924-2-0x0000000000000000-mapping.dmp
  • memory/1924-5-0x0000000000650000-0x0000000000651000-memory.dmp
    Filesize

    4KB

  • memory/1924-4-0x00000000754A0000-0x00000000754D5000-memory.dmp
    Filesize

    212KB

  • memory/1924-3-0x0000000076861000-0x0000000076863000-memory.dmp
    Filesize

    8KB