Analysis

  • max time kernel
    595s
  • max time network
    602s
  • platform
    windows7_x64
  • resource
    win7-en-20211208
  • submitted
    21-12-2021 21:57

General

  • Target

    second_stage1.bin.dll

  • Size

    664KB

  • MD5

    60d10d0aa07877496fc18e82b540abdc

  • SHA1

    b540af55ae7f5f239104a9586aa58d3288e7ac56

  • SHA256

    1e7ef79feb151b4434c1d03c3729feb259de07f06fdb07efa04ff7df842ec7a6

  • SHA512

    9b41be602a514b690664077d5a657604aee448ac0f4c53e56ea79866ed5359d69553e31b4d05efc090ef57487399fadb11443765b234c9f20239b1a341328351

Malware Config

Extracted

Family

qakbot

Version

403.10

Botnet

cullinan

Campaign

1640084934

C2

95.5.133.68:995

188.159.122.122:443

140.82.49.12:443

32.221.229.7:443

24.152.219.253:995

31.35.28.29:443

96.37.113.36:993

109.12.111.14:443

14.96.72.249:61202

93.48.80.198:995

45.9.20.200:2211

24.95.61.62:443

79.167.192.206:995

37.210.226.125:61202

103.139.242.30:995

70.163.1.219:443

114.79.148.170:443

63.153.187.104:443

103.143.8.71:6881

24.53.49.240:443

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
  • Drops file in System32 directory 6 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 64 IoCs
  • Suspicious behavior: EnumeratesProcesses 42 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\second_stage1.bin.dll
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1572
    • C:\Windows\SysWOW64\regsvr32.exe
      /s C:\Users\Admin\AppData\Local\Temp\second_stage1.bin.dll
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: MapViewOfSection
      • Suspicious use of WriteProcessMemory
      PID:1088
      • C:\Windows\SysWOW64\explorer.exe
        C:\Windows\SysWOW64\explorer.exe
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:672
        • C:\Windows\SysWOW64\schtasks.exe
          "C:\Windows\system32\schtasks.exe" /Create /RU "NT AUTHORITY\SYSTEM" /tn wagqonifzp /tr "regsvr32.exe -s \"C:\Users\Admin\AppData\Local\Temp\second_stage1.bin.dll\"" /SC ONCE /Z /ST 21:59 /ET 22:11
          4⤵
          • Creates scheduled task(s)
          PID:1660
  • C:\Windows\system32\taskeng.exe
    taskeng.exe {886B7827-8771-46EE-A088-774A1BC44101} S-1-5-18:NT AUTHORITY\System:Service:
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1840
    • C:\Windows\system32\regsvr32.exe
      regsvr32.exe -s "C:\Users\Admin\AppData\Local\Temp\second_stage1.bin.dll"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1640
      • C:\Windows\SysWOW64\regsvr32.exe
        -s "C:\Users\Admin\AppData\Local\Temp\second_stage1.bin.dll"
        3⤵
        • Loads dropped DLL
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious behavior: MapViewOfSection
        • Suspicious use of WriteProcessMemory
        PID:1648
        • C:\Windows\SysWOW64\explorer.exe
          C:\Windows\SysWOW64\explorer.exe
          4⤵
          • Drops file in System32 directory
          • Modifies data under HKEY_USERS
          • Suspicious use of WriteProcessMemory
          PID:1900
          • 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\Naeqybz" /d "0"
            5⤵
              PID:1820
            • 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\Hrmxdhokou" /d "0"
              5⤵
                PID:1600

      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\second_stage1.bin.dll
        MD5

        60d10d0aa07877496fc18e82b540abdc

        SHA1

        b540af55ae7f5f239104a9586aa58d3288e7ac56

        SHA256

        1e7ef79feb151b4434c1d03c3729feb259de07f06fdb07efa04ff7df842ec7a6

        SHA512

        9b41be602a514b690664077d5a657604aee448ac0f4c53e56ea79866ed5359d69553e31b4d05efc090ef57487399fadb11443765b234c9f20239b1a341328351

      • \Users\Admin\AppData\Local\Temp\second_stage1.bin.dll
        MD5

        60d10d0aa07877496fc18e82b540abdc

        SHA1

        b540af55ae7f5f239104a9586aa58d3288e7ac56

        SHA256

        1e7ef79feb151b4434c1d03c3729feb259de07f06fdb07efa04ff7df842ec7a6

        SHA512

        9b41be602a514b690664077d5a657604aee448ac0f4c53e56ea79866ed5359d69553e31b4d05efc090ef57487399fadb11443765b234c9f20239b1a341328351

      • memory/672-66-0x00000000000D0000-0x00000000000F1000-memory.dmp
        Filesize

        132KB

      • memory/672-61-0x0000000000080000-0x0000000000082000-memory.dmp
        Filesize

        8KB

      • memory/672-62-0x0000000000000000-mapping.dmp
      • memory/672-64-0x0000000074D41000-0x0000000074D43000-memory.dmp
        Filesize

        8KB

      • memory/1088-57-0x0000000000360000-0x00000000003E0000-memory.dmp
        Filesize

        512KB

      • memory/1088-60-0x00000000020D0000-0x0000000002250000-memory.dmp
        Filesize

        1.5MB

      • memory/1088-59-0x0000000002010000-0x000000000208B000-memory.dmp
        Filesize

        492KB

      • memory/1088-56-0x0000000076C61000-0x0000000076C63000-memory.dmp
        Filesize

        8KB

      • memory/1088-65-0x0000000000360000-0x00000000003E0000-memory.dmp
        Filesize

        512KB

      • memory/1088-55-0x0000000000000000-mapping.dmp
      • memory/1572-54-0x000007FEFC321000-0x000007FEFC323000-memory.dmp
        Filesize

        8KB

      • memory/1600-84-0x0000000000000000-mapping.dmp
      • memory/1640-68-0x0000000000000000-mapping.dmp
      • memory/1648-71-0x0000000000000000-mapping.dmp
      • memory/1648-74-0x00000000004B0000-0x0000000000552000-memory.dmp
        Filesize

        648KB

      • memory/1648-82-0x00000000004B0000-0x0000000000552000-memory.dmp
        Filesize

        648KB

      • memory/1648-80-0x0000000000D10000-0x0000000000E90000-memory.dmp
        Filesize

        1.5MB

      • memory/1648-79-0x0000000000A20000-0x0000000000A9B000-memory.dmp
        Filesize

        492KB

      • memory/1660-67-0x0000000000000000-mapping.dmp
      • memory/1820-83-0x0000000000000000-mapping.dmp
      • memory/1900-77-0x0000000000000000-mapping.dmp
      • memory/1900-85-0x0000000000080000-0x00000000000A1000-memory.dmp
        Filesize

        132KB