Analysis

  • max time kernel
    129s
  • max time network
    8s
  • platform
    windows7_x64
  • resource
    win7v20201028
  • submitted
    15-12-2020 13:17

General

  • Target

    904400.dll

  • Size

    289KB

  • MD5

    849036c1ab456c53d6e871df262e0958

  • SHA1

    4d3d76f4d7ebcb9f4b3f258c079040cbcb8fdc82

  • SHA256

    d5d942ddb8b2d94691f043eb6059d5dd0a2ab658fa0c66132ded768c1fcc729b

  • SHA512

    9031e4116f65240b2627716c263069b62bfa44ba95f0efa88268ebb98c3c40ee8606649e5f855d6f025109d33303a3e052a1f98089253739f9621768e03e5cd4

Malware Config

Extracted

Family

qakbot

Botnet

abc104

Campaign

1606818862

C2

79.119.124.237:443

87.218.53.206:2222

181.169.88.203:443

82.12.157.95:995

94.49.188.240:443

46.124.107.124:6881

86.122.248.164:2222

83.202.68.220:2222

79.129.216.215:2222

37.21.231.245:995

47.187.49.3:2222

2.90.33.130:443

149.28.98.196:995

149.28.99.97:443

45.63.107.192:995

149.28.98.196:2222

45.63.107.192:2222

74.73.27.35:443

149.28.98.196:443

144.202.38.185:2222

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\904400.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1696
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\904400.dll,#1
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: MapViewOfSection
      • Suspicious use of WriteProcessMemory
      PID:1664
      • C:\Windows\SysWOW64\explorer.exe
        C:\Windows\SysWOW64\explorer.exe
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:1704
        • C:\Windows\SysWOW64\schtasks.exe
          "C:\Windows\system32\schtasks.exe" /Create /RU "NT AUTHORITY\SYSTEM" /tn tsaqucue /tr "regsvr32.exe -s \"C:\Users\Admin\AppData\Local\Temp\904400.dll\"" /SC ONCE /Z /ST 13:15 /ET 13:27
          4⤵
          • Creates scheduled task(s)
          PID:1196
  • C:\Windows\system32\taskeng.exe
    taskeng.exe {9591E4C8-DEB3-4202-AA8B-4229DEA4A9D2} S-1-5-18:NT AUTHORITY\System:Service:
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1680
    • C:\Windows\system32\regsvr32.exe
      regsvr32.exe -s "C:\Users\Admin\AppData\Local\Temp\904400.dll"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:268
      • C:\Windows\SysWOW64\regsvr32.exe
        -s "C:\Users\Admin\AppData\Local\Temp\904400.dll"
        3⤵
        • Loads dropped DLL
        PID:1492

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\904400.dll
    MD5

    2bf5d094d49fc849fdbcf58e580adb05

    SHA1

    3994a36a3c55998a9e16266792cc6bd85721b006

    SHA256

    0bc51a8278b4dc539d8c937d075ecba4c65d10b9a1006d912bb8ac7e357a5d60

    SHA512

    f422ba24a77c40a9033446b0b22876e0b5cd074d798274d762181306f31743a603a32edbadda57d913a7112fed73666fa62df4b6ddcdbc826cb897f81cfae73b

  • \Users\Admin\AppData\Local\Temp\904400.dll
    MD5

    2bf5d094d49fc849fdbcf58e580adb05

    SHA1

    3994a36a3c55998a9e16266792cc6bd85721b006

    SHA256

    0bc51a8278b4dc539d8c937d075ecba4c65d10b9a1006d912bb8ac7e357a5d60

    SHA512

    f422ba24a77c40a9033446b0b22876e0b5cd074d798274d762181306f31743a603a32edbadda57d913a7112fed73666fa62df4b6ddcdbc826cb897f81cfae73b

  • memory/268-8-0x0000000000000000-mapping.dmp
  • memory/1196-6-0x0000000000000000-mapping.dmp
  • memory/1492-10-0x0000000000000000-mapping.dmp
  • memory/1664-2-0x0000000000000000-mapping.dmp
  • memory/1664-4-0x0000000000250000-0x0000000000271000-memory.dmp
    Filesize

    132KB

  • memory/1704-3-0x00000000000F0000-0x00000000000F2000-memory.dmp
    Filesize

    8KB

  • memory/1704-5-0x0000000000000000-mapping.dmp
  • memory/1704-7-0x0000000000080000-0x00000000000A1000-memory.dmp
    Filesize

    132KB