Analysis

  • max time kernel
    131s
  • max time network
    53s
  • platform
    windows7_x64
  • resource
    win7v20201028
  • submitted
    24-02-2021 22:48

General

  • Target

    6b8430bb93953dd2eae27d8f65264f23cd98d97622cb6e591aa0667693329971.dll

  • Size

    298KB

  • MD5

    881a9e705fb2c47add8a5f30e39a40c2

  • SHA1

    8bb1ee2f3c0e597794a0a5a59193dc532900dee4

  • SHA256

    6b8430bb93953dd2eae27d8f65264f23cd98d97622cb6e591aa0667693329971

  • SHA512

    424c7db12a370d50c4653a708a9ff58301dee63cb0861dfab06551f5d9eb556bef2218b6850b2140f3983e224574a3cb7b926000f048ecd8642a23e1c68f808d

Malware Config

Extracted

Family

qakbot

Botnet

abc123

Campaign

1612275762

C2

196.151.252.84:443

216.201.162.158:443

83.110.12.140:2222

105.186.102.16:443

108.31.15.10:995

193.248.221.184:2222

68.225.60.77:995

197.45.110.165:995

89.3.198.238:443

81.97.154.100:443

81.214.126.173:2222

108.46.145.30:443

71.187.170.235:443

72.240.200.181:2222

81.88.254.62:443

98.240.24.57:443

86.97.8.249:443

75.136.40.155:443

79.129.121.81:995

37.211.90.175:995

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\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\6b8430bb93953dd2eae27d8f65264f23cd98d97622cb6e591aa0667693329971.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1088
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\6b8430bb93953dd2eae27d8f65264f23cd98d97622cb6e591aa0667693329971.dll,#1
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: MapViewOfSection
      • Suspicious use of WriteProcessMemory
      PID:1772
      • C:\Windows\SysWOW64\explorer.exe
        C:\Windows\SysWOW64\explorer.exe
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:1848
        • C:\Windows\SysWOW64\schtasks.exe
          "C:\Windows\system32\schtasks.exe" /Create /RU "NT AUTHORITY\SYSTEM" /tn wkzbfmgkmi /tr "regsvr32.exe -s \"C:\Users\Admin\AppData\Local\Temp\6b8430bb93953dd2eae27d8f65264f23cd98d97622cb6e591aa0667693329971.dll\"" /SC ONCE /Z /ST 23:47 /ET 23:59
          4⤵
          • Creates scheduled task(s)
          PID:1352
  • C:\Windows\system32\taskeng.exe
    taskeng.exe {3E8866A4-171C-4BCF-8BCC-0BF17F968DC9} S-1-5-18:NT AUTHORITY\System:Service:
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:584
    • C:\Windows\system32\regsvr32.exe
      regsvr32.exe -s "C:\Users\Admin\AppData\Local\Temp\6b8430bb93953dd2eae27d8f65264f23cd98d97622cb6e591aa0667693329971.dll"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:868
      • C:\Windows\SysWOW64\regsvr32.exe
        -s "C:\Users\Admin\AppData\Local\Temp\6b8430bb93953dd2eae27d8f65264f23cd98d97622cb6e591aa0667693329971.dll"
        3⤵
        • Loads dropped DLL
        PID:1012

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\6b8430bb93953dd2eae27d8f65264f23cd98d97622cb6e591aa0667693329971.dll
    MD5

    a90bbd89d76fbcde4a1b5ba2aa476267

    SHA1

    d43c9e9c0c6d4e7e198d4dc8741ded379707e1c0

    SHA256

    441b9edfa8194bf34a144b11a99d5b3b1da3b526ea26bd7c654eccf865982ccb

    SHA512

    7c606ce28c474ac8683ec7a5c31699650ce55334c8a041c73c77a76ab2e236b0226002e7606f9f11d568f078c95329f05273576db7dbf4749527bac6fee38719

  • \Users\Admin\AppData\Local\Temp\6b8430bb93953dd2eae27d8f65264f23cd98d97622cb6e591aa0667693329971.dll
    MD5

    a90bbd89d76fbcde4a1b5ba2aa476267

    SHA1

    d43c9e9c0c6d4e7e198d4dc8741ded379707e1c0

    SHA256

    441b9edfa8194bf34a144b11a99d5b3b1da3b526ea26bd7c654eccf865982ccb

    SHA512

    7c606ce28c474ac8683ec7a5c31699650ce55334c8a041c73c77a76ab2e236b0226002e7606f9f11d568f078c95329f05273576db7dbf4749527bac6fee38719

  • memory/868-12-0x0000000000000000-mapping.dmp
  • memory/868-13-0x000007FEFBDA1000-0x000007FEFBDA3000-memory.dmp
    Filesize

    8KB

  • memory/1012-15-0x0000000000000000-mapping.dmp
  • memory/1352-9-0x0000000000000000-mapping.dmp
  • memory/1772-2-0x0000000000000000-mapping.dmp
  • memory/1772-5-0x0000000000690000-0x00000000006C5000-memory.dmp
    Filesize

    212KB

  • memory/1772-4-0x00000000006E0000-0x0000000000714000-memory.dmp
    Filesize

    208KB

  • memory/1772-3-0x0000000075D61000-0x0000000075D63000-memory.dmp
    Filesize

    8KB

  • memory/1848-10-0x0000000000080000-0x00000000000B5000-memory.dmp
    Filesize

    212KB

  • memory/1848-11-0x0000000000080000-0x00000000000B5000-memory.dmp
    Filesize

    212KB

  • memory/1848-8-0x00000000749F1000-0x00000000749F3000-memory.dmp
    Filesize

    8KB

  • memory/1848-6-0x0000000000000000-mapping.dmp