Analysis

  • max time kernel
    150s
  • max time network
    152s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220414-en
  • submitted
    11-07-2022 17:27

General

  • Target

    WindowsCodecs.dll

  • Size

    4KB

  • MD5

    491e9489c9e11f8b9d3d77239559a194

  • SHA1

    f5df8d4edfdc22646c106259c21abe8d79195e31

  • SHA256

    6e3661049bde832369781afa1d9034315442b1e4b87aa92d571cbe73186997c5

  • SHA512

    ef0bd113fe6b64d7673b33cce559bdc0cfc99c81baac78c4a15b00b7eeb07470aa36e0f29a695b615fe149858a23733015c467948d889ffbee9a1fc916e2ceae

Malware Config

Extracted

Family

qakbot

Version

403.780

Botnet

obama200

Campaign

1657548298

C2

172.115.177.204:2222

89.101.97.139:443

186.90.153.162:2222

38.70.253.226:2222

120.150.218.241:995

72.252.157.93:995

72.252.157.93:993

94.36.193.176:2222

47.23.89.60:993

89.211.209.234:2222

76.25.142.196:443

46.100.25.239:61202

24.158.23.166:995

69.14.172.24:443

92.132.132.81:2222

37.34.253.233:443

93.48.80.198:995

174.80.15.101:2083

24.178.196.158:2222

197.89.20.137:443

Attributes
  • salt

    jHxastDcds)oMc=jvh7wdUhxcsdt2

Signatures

  • Qakbot/Qbot

    Qbot or Qakbot is a sophisticated worm with banking capabilities.

  • Loads dropped DLL 2 IoCs
  • Drops file in System32 directory 2 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 41 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: MapViewOfSection 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 19 IoCs

Processes

  • C:\Windows\system32\regsvr32.exe
    regsvr32 /s C:\Users\Admin\AppData\Local\Temp\WindowsCodecs.dll
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:3124
    • C:\Windows\SysWOW64\regsvr32.exe
      /s C:\Users\Admin\AppData\Local\Temp\WindowsCodecs.dll
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:3040
      • C:\Windows\SysWOW64\regsvr32.exe
        C:\Windows\SysWOW64\regsvr32.exe 102755.dll
        3⤵
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious behavior: MapViewOfSection
        • Suspicious use of WriteProcessMemory
        PID:3660
        • C:\Windows\SysWOW64\explorer.exe
          C:\Windows\SysWOW64\explorer.exe
          4⤵
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of WriteProcessMemory
          PID:2664
          • C:\Windows\SysWOW64\schtasks.exe
            "C:\Windows\system32\schtasks.exe" /Create /RU "NT AUTHORITY\SYSTEM" /Z /ST 19:34 /tn ttwlbiti /ET 19:45 /tr "powershell.exe -encodedCommand cgBlAGcAcwB2AHIAMwAyAC4AZQB4AGUAIAAiAEMAOgBcAFUAcwBlAHIAcwBcAEEAZABtAGkAbgBcAEEAcABwAEQAYQB0AGEAXABMAG8AYwBhAGwAXABUAGUAbQBwAFwAMQAwADIANwA1ADUALgBkAGwAbAAiAA==" /SC ONCE
            5⤵
            • Creates scheduled task(s)
            PID:2900
  • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    powershell.exe -encodedCommand cgBlAGcAcwB2AHIAMwAyAC4AZQB4AGUAIAAiAEMAOgBcAFUAcwBlAHIAcwBcAEEAZABtAGkAbgBcAEEAcABwAEQAYQB0AGEAXABMAG8AYwBhAGwAXABUAGUAbQBwAFwAMQAwADIANwA1ADUALgBkAGwAbAAiAA==
    1⤵
    • Drops file in System32 directory
    • Modifies data under HKEY_USERS
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3228
    • C:\Windows\system32\regsvr32.exe
      "C:\Windows\system32\regsvr32.exe" C:\Users\Admin\AppData\Local\Temp\102755.dll
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1040
      • C:\Windows\SysWOW64\regsvr32.exe
        C:\Users\Admin\AppData\Local\Temp\102755.dll
        3⤵
        • Loads dropped DLL
        PID:4396

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\102755.dll
    Filesize

    686KB

    MD5

    628bb6106d55dc762ce439e5c33b06a4

    SHA1

    3888ef542fb1299258f83b0cd62f71d8887691e6

    SHA256

    c0ba083bff21c52e20f97ffb1d20ada082e328d6a4f5561c10f4944f9187d375

    SHA512

    1180a907bf5b06095d04cba610fa3571b325096b772aaec23b3cb1441200dd04ba3c824b8dfe3252e870c15a2967e8f37aea9f84f843ef27b302fe92dc760683

  • C:\Users\Admin\AppData\Local\Temp\102755.dll
    Filesize

    686KB

    MD5

    628bb6106d55dc762ce439e5c33b06a4

    SHA1

    3888ef542fb1299258f83b0cd62f71d8887691e6

    SHA256

    c0ba083bff21c52e20f97ffb1d20ada082e328d6a4f5561c10f4944f9187d375

    SHA512

    1180a907bf5b06095d04cba610fa3571b325096b772aaec23b3cb1441200dd04ba3c824b8dfe3252e870c15a2967e8f37aea9f84f843ef27b302fe92dc760683

  • C:\Users\Admin\AppData\Local\Temp\102755.dll
    Filesize

    686KB

    MD5

    628bb6106d55dc762ce439e5c33b06a4

    SHA1

    3888ef542fb1299258f83b0cd62f71d8887691e6

    SHA256

    c0ba083bff21c52e20f97ffb1d20ada082e328d6a4f5561c10f4944f9187d375

    SHA512

    1180a907bf5b06095d04cba610fa3571b325096b772aaec23b3cb1441200dd04ba3c824b8dfe3252e870c15a2967e8f37aea9f84f843ef27b302fe92dc760683

  • memory/1040-142-0x0000000000000000-mapping.dmp
  • memory/2664-138-0x0000000000380000-0x00000000003A2000-memory.dmp
    Filesize

    136KB

  • memory/2664-136-0x0000000000000000-mapping.dmp
  • memory/2664-140-0x0000000000380000-0x00000000003A2000-memory.dmp
    Filesize

    136KB

  • memory/2900-139-0x0000000000000000-mapping.dmp
  • memory/3040-130-0x0000000000000000-mapping.dmp
  • memory/3228-141-0x00000236F8210000-0x00000236F8232000-memory.dmp
    Filesize

    136KB

  • memory/3228-148-0x00007FF8A1960000-0x00007FF8A2421000-memory.dmp
    Filesize

    10.8MB

  • memory/3660-137-0x0000000002D50000-0x0000000002D72000-memory.dmp
    Filesize

    136KB

  • memory/3660-135-0x0000000002D50000-0x0000000002D72000-memory.dmp
    Filesize

    136KB

  • memory/3660-134-0x0000000002CF0000-0x0000000002D2F000-memory.dmp
    Filesize

    252KB

  • memory/3660-133-0x0000000002D50000-0x0000000002D72000-memory.dmp
    Filesize

    136KB

  • memory/3660-132-0x00000000022A0000-0x000000000234E000-memory.dmp
    Filesize

    696KB

  • memory/3660-131-0x0000000000000000-mapping.dmp
  • memory/4396-144-0x0000000000000000-mapping.dmp
  • memory/4396-147-0x0000000001620000-0x00000000016CE000-memory.dmp
    Filesize

    696KB