Analysis

  • max time kernel
    131s
  • max time network
    119s
  • platform
    windows7_x64
  • resource
    win7-en-20211208
  • submitted
    14-12-2021 12:00

General

  • Target

    186b5f0acbf214a1f442530198f213e675de3cd908b33501b646a5f8494d1ecc.dll

  • Size

    825KB

  • MD5

    3142cbf3b97b301f787b5dfdde5e4b62

  • SHA1

    d5c85a79f8afbaf828538e1544abcdf254cb2c6a

  • SHA256

    186b5f0acbf214a1f442530198f213e675de3cd908b33501b646a5f8494d1ecc

  • SHA512

    1b0c8ec21f42b5ca2cb7ab3a3b66c139c0a807c4cf399f4649f21f27913f351c04cb4676b37d7de5fe93bbca02119103d4b510ef6cfd819492292af4db5da0d7

Malware Config

Extracted

Family

qakbot

Version

403.10

Botnet

cullinan

Campaign

1639333530

C2

65.100.174.110:443

173.21.10.71:2222

140.82.49.12:443

190.73.3.148:2222

76.25.142.196:443

71.74.12.34:443

31.215.98.160:443

93.48.80.198:995

45.9.20.200:2211

41.228.22.180:443

109.12.111.14:443

63.143.92.99:995

120.150.218.241:995

94.60.254.81:443

86.148.6.51:443

218.101.110.3:995

216.238.71.31:443

207.246.112.221:443

216.238.72.121:443

216.238.71.31:995

Attributes
  • salt

    jHxastDcds)oMc=jvh7wdUhxcsdt2

Signatures

  • Qakbot/Qbot

    Qbot or Qakbot is a sophisticated worm with banking capabilities.

  • Windows security bypass 2 TTPs
  • 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.

  • Modifies data under HKEY_USERS 10 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious behavior: MapViewOfSection 2 IoCs
  • Suspicious use of WriteProcessMemory 43 IoCs

Processes

  • C:\Windows\system32\regsvr32.exe
    regsvr32 /s C:\Users\Admin\AppData\Local\Temp\186b5f0acbf214a1f442530198f213e675de3cd908b33501b646a5f8494d1ecc.dll
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:832
    • C:\Windows\SysWOW64\regsvr32.exe
      /s C:\Users\Admin\AppData\Local\Temp\186b5f0acbf214a1f442530198f213e675de3cd908b33501b646a5f8494d1ecc.dll
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: MapViewOfSection
      • Suspicious use of WriteProcessMemory
      PID:1212
      • C:\Windows\SysWOW64\explorer.exe
        C:\Windows\SysWOW64\explorer.exe
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:524
        • C:\Windows\SysWOW64\schtasks.exe
          "C:\Windows\system32\schtasks.exe" /Create /RU "NT AUTHORITY\SYSTEM" /tn dhgfbdex /tr "regsvr32.exe -s \"C:\Users\Admin\AppData\Local\Temp\186b5f0acbf214a1f442530198f213e675de3cd908b33501b646a5f8494d1ecc.dll\"" /SC ONCE /Z /ST 12:02 /ET 12:14
          4⤵
          • Creates scheduled task(s)
          PID:1388
  • C:\Windows\system32\taskeng.exe
    taskeng.exe {464865E1-346A-4A33-8EA3-28F1D2B62226} S-1-5-18:NT AUTHORITY\System:Service:
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1852
    • C:\Windows\system32\regsvr32.exe
      regsvr32.exe -s "C:\Users\Admin\AppData\Local\Temp\186b5f0acbf214a1f442530198f213e675de3cd908b33501b646a5f8494d1ecc.dll"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1692
      • C:\Windows\SysWOW64\regsvr32.exe
        -s "C:\Users\Admin\AppData\Local\Temp\186b5f0acbf214a1f442530198f213e675de3cd908b33501b646a5f8494d1ecc.dll"
        3⤵
        • Loads dropped DLL
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious behavior: MapViewOfSection
        • Suspicious use of WriteProcessMemory
        PID:1196
        • C:\Windows\SysWOW64\explorer.exe
          C:\Windows\SysWOW64\explorer.exe
          4⤵
          • Modifies data under HKEY_USERS
          • Suspicious use of WriteProcessMemory
          PID:1720
          • C:\Windows\system32\reg.exe
            C:\Windows\system32\reg.exe ADD "HKLM\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths" /f /t REG_DWORD /v "C:\ProgramData\Microsoft\Drzlasopmeis" /d "0"
            5⤵
              PID:1604
            • C:\Windows\system32\reg.exe
              C:\Windows\system32\reg.exe ADD "HKLM\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths" /f /t REG_DWORD /v "C:\Users\Admin\AppData\Roaming\Microsoft\Cngheaejiay" /d "0"
              5⤵
                PID:1120

      Network

      MITRE ATT&CK Matrix ATT&CK v6

      Execution

      Scheduled Task

      1
      T1053

      Persistence

      Scheduled Task

      1
      T1053

      Privilege Escalation

      Scheduled Task

      1
      T1053

      Defense Evasion

      Disabling Security Tools

      1
      T1089

      Modify Registry

      1
      T1112

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • C:\Users\Admin\AppData\Local\Temp\186b5f0acbf214a1f442530198f213e675de3cd908b33501b646a5f8494d1ecc.dll
        MD5

        3142cbf3b97b301f787b5dfdde5e4b62

        SHA1

        d5c85a79f8afbaf828538e1544abcdf254cb2c6a

        SHA256

        186b5f0acbf214a1f442530198f213e675de3cd908b33501b646a5f8494d1ecc

        SHA512

        1b0c8ec21f42b5ca2cb7ab3a3b66c139c0a807c4cf399f4649f21f27913f351c04cb4676b37d7de5fe93bbca02119103d4b510ef6cfd819492292af4db5da0d7

      • \??\PIPE\wkssvc
        MD5

        d41d8cd98f00b204e9800998ecf8427e

        SHA1

        da39a3ee5e6b4b0d3255bfef95601890afd80709

        SHA256

        e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855

        SHA512

        cf83e1357eefb8bdf1542850d66d8007d620e4050b5715dc83f4a921d36ce9ce47d0d13c5d85f2b0ff8318d2877eec2f63b931bd47417a81a538327af927da3e

      • \Users\Admin\AppData\Local\Temp\186b5f0acbf214a1f442530198f213e675de3cd908b33501b646a5f8494d1ecc.dll
        MD5

        3142cbf3b97b301f787b5dfdde5e4b62

        SHA1

        d5c85a79f8afbaf828538e1544abcdf254cb2c6a

        SHA256

        186b5f0acbf214a1f442530198f213e675de3cd908b33501b646a5f8494d1ecc

        SHA512

        1b0c8ec21f42b5ca2cb7ab3a3b66c139c0a807c4cf399f4649f21f27913f351c04cb4676b37d7de5fe93bbca02119103d4b510ef6cfd819492292af4db5da0d7

      • memory/524-64-0x00000000000C0000-0x00000000000E1000-memory.dmp
        Filesize

        132KB

      • memory/524-57-0x00000000000F0000-0x00000000000F2000-memory.dmp
        Filesize

        8KB

      • memory/524-58-0x0000000000000000-mapping.dmp
      • memory/524-62-0x0000000074841000-0x0000000074843000-memory.dmp
        Filesize

        8KB

      • memory/832-54-0x000007FEFBE91000-0x000007FEFBE93000-memory.dmp
        Filesize

        8KB

      • memory/1120-78-0x0000000000000000-mapping.dmp
      • memory/1196-68-0x0000000000000000-mapping.dmp
      • memory/1212-61-0x0000000010000000-0x00000000100FA000-memory.dmp
        Filesize

        1000KB

      • memory/1212-60-0x00000000001D0000-0x00000000001D1000-memory.dmp
        Filesize

        4KB

      • memory/1212-56-0x0000000075891000-0x0000000075893000-memory.dmp
        Filesize

        8KB

      • memory/1212-55-0x0000000000000000-mapping.dmp
      • memory/1388-63-0x0000000000000000-mapping.dmp
      • memory/1604-76-0x0000000000000000-mapping.dmp
      • memory/1692-65-0x0000000000000000-mapping.dmp
      • memory/1720-72-0x0000000000000000-mapping.dmp
      • memory/1720-77-0x0000000000080000-0x00000000000A1000-memory.dmp
        Filesize

        132KB