Analysis

  • max time kernel
    137s
  • max time network
    90s
  • platform
    windows10_x64
  • resource
    win10v20210408
  • submitted
    24-09-2021 17:31

General

  • Target

    qrzteemm.dll

  • Size

    306KB

  • MD5

    271e46872af686276374f37977e91f5b

  • SHA1

    059c0c1e15d63f798770775e8722575e00645f21

  • SHA256

    10d1e5d1839bcc7516a19d02f50a354cb982603e25609e019300d1534f928efc

  • SHA512

    7afe86979bb4d4f766ea1027c41da38d8005771c646a90d14812de0577c34e30ff7462ab51e8d2c9d2a8912638d9dafd699fe2a25a5b95af84a9177fb291eeca

Malware Config

Extracted

Family

qakbot

Version

402.318

Botnet

tr

Campaign

1632152742

C2

45.46.53.140:2222

144.139.47.206:443

189.210.115.207:443

120.150.218.241:995

47.22.148.6:443

140.82.49.12:443

24.139.72.117:443

24.229.150.54:995

24.55.112.61:443

136.232.34.70:443

95.77.223.148:443

173.21.10.71:2222

76.25.142.196:443

96.37.113.36:993

71.74.12.34:443

73.151.236.31:443

67.165.206.193:993

109.12.111.14:443

68.204.7.158:443

105.198.236.99:443

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\qrzteemm.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:3492
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\qrzteemm.dll,#1
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: MapViewOfSection
      • Suspicious use of WriteProcessMemory
      PID:3476
      • C:\Windows\SysWOW64\explorer.exe
        C:\Windows\SysWOW64\explorer.exe
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:4012
        • C:\Windows\SysWOW64\schtasks.exe
          "C:\Windows\system32\schtasks.exe" /Create /RU "NT AUTHORITY\SYSTEM" /tn dnhmjio /tr "regsvr32.exe -s \"C:\Users\Admin\AppData\Local\Temp\qrzteemm.dll\"" /SC ONCE /Z /ST 19:34 /ET 19:46
          4⤵
          • Creates scheduled task(s)
          PID:1800
  • \??\c:\windows\system32\regsvr32.exe
    regsvr32.exe -s "C:\Users\Admin\AppData\Local\Temp\qrzteemm.dll"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2808
    • C:\Windows\SysWOW64\regsvr32.exe
      -s "C:\Users\Admin\AppData\Local\Temp\qrzteemm.dll"
      2⤵
      • Loads dropped DLL
      PID:2584
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 2584 -s 596
        3⤵
        • Program crash
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:3892

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/3476-115-0x0000000002D50000-0x0000000002E9A000-memory.dmp

    Filesize

    1.3MB

  • memory/3476-116-0x0000000010000000-0x000000001004C000-memory.dmp

    Filesize

    304KB

  • memory/4012-118-0x0000000003010000-0x0000000003031000-memory.dmp

    Filesize

    132KB