Analysis

  • max time kernel
    1800s
  • max time network
    1799s
  • platform
    windows10_x64
  • resource
    win10-en-20210920
  • submitted
    08-10-2021 17:59

General

  • Target

    rob.html.dll

  • Size

    846KB

  • MD5

    3283652c1e57afef22993b466cc7440f

  • SHA1

    412262cff6773355f271be7f2a3ebc1a01d73194

  • SHA256

    5d24821c2558cc18b84c341cde0a93dc090c9311864f65e85624b5746eda560d

  • SHA512

    90501854198a1ac9145223cedfb14880ef7507b13ce2cd0ac938c940d572e13e0155fc31f77f50907a01e1787245c3dff2f3f7206bd6dd13844cba4a56d04d80

Malware Config

Extracted

Family

qakbot

Version

402.363

Botnet

tr

Campaign

1633597626

C2

120.150.218.241:995

185.250.148.74:443

89.137.52.44:443

66.103.170.104:2222

86.8.177.143:443

216.201.162.158:443

174.54.193.186:443

103.148.120.144:443

188.50.169.158:443

124.123.42.115:2222

140.82.49.12:443

199.27.127.129:443

81.241.252.59:2078

209.142.97.161:995

209.50.20.255:443

73.230.205.91:443

200.232.214.222:995

103.142.10.177:443

2.222.167.138:443

41.228.22.180:443

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 12 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 4 IoCs
  • Suspicious behavior: MapViewOfSection 2 IoCs
  • Suspicious use of WriteProcessMemory 26 IoCs

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\rob.html.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1628
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\rob.html.dll,#1
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: MapViewOfSection
      • Suspicious use of WriteProcessMemory
      PID:3720
      • C:\Windows\SysWOW64\explorer.exe
        C:\Windows\SysWOW64\explorer.exe
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:1680
        • C:\Windows\SysWOW64\schtasks.exe
          "C:\Windows\system32\schtasks.exe" /Create /RU "NT AUTHORITY\SYSTEM" /tn qbleyqcjb /tr "regsvr32.exe -s \"C:\Users\Admin\AppData\Local\Temp\rob.html.dll\"" /SC ONCE /Z /ST 18:02 /ET 18:14
          4⤵
          • Creates scheduled task(s)
          PID:3632
  • \??\c:\windows\system32\regsvr32.exe
    regsvr32.exe -s "C:\Users\Admin\AppData\Local\Temp\rob.html.dll"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:708
    • C:\Windows\SysWOW64\regsvr32.exe
      -s "C:\Users\Admin\AppData\Local\Temp\rob.html.dll"
      2⤵
      • Loads dropped DLL
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: MapViewOfSection
      • Suspicious use of WriteProcessMemory
      PID:656
      • C:\Windows\SysWOW64\explorer.exe
        C:\Windows\SysWOW64\explorer.exe
        3⤵
        • Drops file in System32 directory
        • Modifies data under HKEY_USERS
        • Suspicious use of WriteProcessMemory
        PID:3176
        • 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\Djiexju" /d "0"
          4⤵
            PID:3280
          • 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\Yordcpjcmrsa" /d "0"
            4⤵
              PID:2256
      • \??\c:\windows\system32\regsvr32.exe
        regsvr32.exe -s "C:\Users\Admin\AppData\Local\Temp\rob.html.dll"
        1⤵
        • Suspicious use of WriteProcessMemory
        PID:3312
        • C:\Windows\SysWOW64\regsvr32.exe
          -s "C:\Users\Admin\AppData\Local\Temp\rob.html.dll"
          2⤵
            PID:2560

        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\rob.html.dll
          MD5

          3283652c1e57afef22993b466cc7440f

          SHA1

          412262cff6773355f271be7f2a3ebc1a01d73194

          SHA256

          5d24821c2558cc18b84c341cde0a93dc090c9311864f65e85624b5746eda560d

          SHA512

          90501854198a1ac9145223cedfb14880ef7507b13ce2cd0ac938c940d572e13e0155fc31f77f50907a01e1787245c3dff2f3f7206bd6dd13844cba4a56d04d80

        • C:\Users\Admin\AppData\Local\Temp\rob.html.dll
          MD5

          3b58aa34eb6f17bb84ce8d94d2383034

          SHA1

          fcea6b6b167f5aba835cafc77e0d4d5d8351e046

          SHA256

          58e9539f9b119def7e5389ab4d50876572686d6c72b270b8480b39d6554bf42e

          SHA512

          4184f8d24db51430d78f41d1bd27380ecb58637aa4501c6972fa47b80a57e23ba69c7d3a0a8e1a61a6dc6fc13423db33e2e26f1381babc26873e91b6ed6323f8

        • \Users\Admin\AppData\Local\Temp\rob.html.dll
          MD5

          3283652c1e57afef22993b466cc7440f

          SHA1

          412262cff6773355f271be7f2a3ebc1a01d73194

          SHA256

          5d24821c2558cc18b84c341cde0a93dc090c9311864f65e85624b5746eda560d

          SHA512

          90501854198a1ac9145223cedfb14880ef7507b13ce2cd0ac938c940d572e13e0155fc31f77f50907a01e1787245c3dff2f3f7206bd6dd13844cba4a56d04d80

        • memory/656-131-0x00000000008E0000-0x0000000000A2A000-memory.dmp
          Filesize

          1.3MB

        • memory/656-130-0x0000000072660000-0x00000000727D1000-memory.dmp
          Filesize

          1.4MB

        • memory/656-129-0x0000000072660000-0x0000000072681000-memory.dmp
          Filesize

          132KB

        • memory/656-128-0x0000000072660000-0x00000000727D1000-memory.dmp
          Filesize

          1.4MB

        • memory/656-126-0x0000000000000000-mapping.dmp
        • memory/1680-123-0x0000000000170000-0x0000000000171000-memory.dmp
          Filesize

          4KB

        • memory/1680-124-0x0000000000360000-0x0000000000381000-memory.dmp
          Filesize

          132KB

        • memory/1680-122-0x0000000000170000-0x0000000000171000-memory.dmp
          Filesize

          4KB

        • memory/1680-120-0x0000000000000000-mapping.dmp
        • memory/2256-134-0x0000000000000000-mapping.dmp
        • memory/2560-139-0x0000000000000000-mapping.dmp
        • memory/3176-136-0x0000000000760000-0x0000000000761000-memory.dmp
          Filesize

          4KB

        • memory/3176-135-0x0000000000760000-0x0000000000761000-memory.dmp
          Filesize

          4KB

        • memory/3176-137-0x0000000000A40000-0x0000000000A61000-memory.dmp
          Filesize

          132KB

        • memory/3176-132-0x0000000000000000-mapping.dmp
        • memory/3280-133-0x0000000000000000-mapping.dmp
        • memory/3632-121-0x0000000000000000-mapping.dmp
        • memory/3720-115-0x0000000000000000-mapping.dmp
        • memory/3720-119-0x00000000005F0000-0x00000000005F1000-memory.dmp
          Filesize

          4KB

        • memory/3720-118-0x0000000073900000-0x0000000073A71000-memory.dmp
          Filesize

          1.4MB

        • memory/3720-117-0x0000000073900000-0x0000000073921000-memory.dmp
          Filesize

          132KB

        • memory/3720-116-0x0000000073900000-0x0000000073A71000-memory.dmp
          Filesize

          1.4MB