Analysis

  • max time kernel
    141s
  • max time network
    36s
  • platform
    windows7_x64
  • resource
    win7v20210408
  • submitted
    14-05-2021 09:56

General

  • Target

    may13.exe.dll

  • Size

    675KB

  • MD5

    935e97076089beae8f61e5e1487fb3b2

  • SHA1

    44b3b3398ca306d20a9b28b0f7566ae80fc4f0ec

  • SHA256

    b0a2df285e3c2ebec59bf7827db9c6e6169850eb846d212ed71f469ac561643a

  • SHA512

    a09a323c50110c55b34a7fccb980be7bf4029ac430c8bdf190e17ee4d202cf169b7c9d14d23aa054465adadb559b2fa1fe4282591f99080c8e91e08b24b6f938

Malware Config

Extracted

Family

qakbot

Version

402.68

Botnet

clinton16

Campaign

1620911967

C2

71.41.184.10:3389

216.201.162.158:443

95.77.223.148:443

71.74.12.34:443

86.220.62.251:2222

24.229.150.54:995

24.55.112.61:443

76.25.142.196:443

136.232.34.70:443

149.28.99.97:443

45.63.107.192:2222

45.63.107.192:443

149.28.99.97:2222

149.28.99.97:995

45.63.107.192:995

86.248.16.253:2222

86.160.137.225:443

75.67.192.125:443

140.82.49.12:443

47.22.148.6:443

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 1 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\may13.exe.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:468
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\may13.exe.dll,#1
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: MapViewOfSection
      • Suspicious use of WriteProcessMemory
      PID:1888
      • C:\Windows\SysWOW64\explorer.exe
        C:\Windows\SysWOW64\explorer.exe
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:1672
        • C:\Windows\SysWOW64\schtasks.exe
          "C:\Windows\system32\schtasks.exe" /Create /RU "NT AUTHORITY\SYSTEM" /tn rfkaoqss /tr "regsvr32.exe -s \"C:\Users\Admin\AppData\Local\Temp\may13.exe.dll\"" /SC ONCE /Z /ST 12:03 /ET 12:15
          4⤵
          • Creates scheduled task(s)
          PID:1604
  • C:\Windows\system32\taskeng.exe
    taskeng.exe {0BAC58F5-DDDC-4586-A49F-81B5E3CD5185} S-1-5-18:NT AUTHORITY\System:Service:
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1044
    • C:\Windows\system32\regsvr32.exe
      regsvr32.exe -s "C:\Users\Admin\AppData\Local\Temp\may13.exe.dll"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1756
      • C:\Windows\SysWOW64\regsvr32.exe
        -s "C:\Users\Admin\AppData\Local\Temp\may13.exe.dll"
        3⤵
        • Loads dropped DLL
        PID:1932

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

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\may13.exe.dll
    MD5

    eacded74c8df72917e273689529efcd3

    SHA1

    69f855b1506d924b1be560b310f06237dfad5704

    SHA256

    b977e679b33b7a108748f3437c4a70bb393427420503ec92ff1a685f36e84f8d

    SHA512

    18495fa46521dc922c9f81bb9d9c35191cd6990e8eab15c9b93213525577cbb9c068578565a1d6099fe23e1051f28b1a8914a94d0e1784d5d1c1a920ca44af05

  • \Users\Admin\AppData\Local\Temp\may13.exe.dll
    MD5

    eacded74c8df72917e273689529efcd3

    SHA1

    69f855b1506d924b1be560b310f06237dfad5704

    SHA256

    b977e679b33b7a108748f3437c4a70bb393427420503ec92ff1a685f36e84f8d

    SHA512

    18495fa46521dc922c9f81bb9d9c35191cd6990e8eab15c9b93213525577cbb9c068578565a1d6099fe23e1051f28b1a8914a94d0e1784d5d1c1a920ca44af05

  • memory/1604-66-0x0000000000000000-mapping.dmp
  • memory/1672-67-0x00000000000F0000-0x000000000012D000-memory.dmp
    Filesize

    244KB

  • memory/1672-63-0x0000000000000000-mapping.dmp
  • memory/1672-65-0x0000000074201000-0x0000000074203000-memory.dmp
    Filesize

    8KB

  • memory/1756-69-0x000007FEFB531000-0x000007FEFB533000-memory.dmp
    Filesize

    8KB

  • memory/1756-68-0x0000000000000000-mapping.dmp
  • memory/1888-62-0x00000000002C0000-0x00000000002FD000-memory.dmp
    Filesize

    244KB

  • memory/1888-59-0x0000000000000000-mapping.dmp
  • memory/1888-61-0x00000000001E0000-0x0000000000220000-memory.dmp
    Filesize

    256KB

  • memory/1888-60-0x0000000075051000-0x0000000075053000-memory.dmp
    Filesize

    8KB

  • memory/1932-71-0x0000000000000000-mapping.dmp