c71ac46fba2237c4a8f62a62ce687ce1

General
Target

c71ac46fba2237c4a8f62a62ce687ce1.dll

Filesize

890KB

Completed

21-10-2021 19:21

Score
10/10
MD5

c71ac46fba2237c4a8f62a62ce687ce1

SHA1

da6f18d68a8224d84491dd7ab175c8e6588c4575

SHA256

7e85568fd3f9ea14fc2a7f0f1a61499265b66001488413eaf2fd1ad86f97b05e

Malware Config

Extracted

Family qakbot
Version 402.363
Botnet biden54
Campaign 1634810637
C2

136.143.11.232:443

63.143.92.99:995

182.176.180.73:443

136.232.34.70:443

123.252.190.14:443

216.201.162.158:443

37.208.181.198:61200

140.82.49.12:443

197.89.144.102:443

89.137.52.44:443

109.12.111.14:443

78.191.24.189:995

105.198.236.99:995

196.207.140.40:995

41.235.69.115:443

2.222.167.138:443

117.198.156.56:443

24.231.209.2:6881

27.223.92.142:995

96.246.158.154:995

81.250.153.227:2222

120.150.218.241:995

76.25.142.196:443

89.101.97.139:443

81.213.59.22:443

173.21.10.71:2222

103.142.10.177:443

71.74.12.34:443

24.231.209.2:2222

75.188.35.168:443

209.210.95.228:995

73.151.236.31:443

220.255.25.187:2222

187.156.134.254:443

189.175.219.53:80

108.4.67.252:443

209.210.95.228:993

67.165.206.193:993

173.25.162.221:443

100.1.119.41:443

93.48.58.123:2222

65.100.174.110:443

201.137.10.225:443

24.229.150.54:995

146.66.238.74:443

68.204.7.158:443

37.208.181.198:443

41.86.42.158:995

189.135.16.92:443

187.75.66.160:995

Attributes
salt
jHxastDcds)oMc=jvh7wdUhxcsdt2
Signatures 8

Filter: none

Defense Evasion
Persistence
  • Qakbot/Qbot

    Description

    Qbot or Qakbot is a sophisticated worm with banking capabilities.

  • Windows security bypass

    TTPs

    Disabling Security ToolsModify Registry
  • Loads dropped DLL
    regsvr32.exe

    Reported IOCs

    pidprocess
    2988regsvr32.exe
  • Creates scheduled task(s)
    schtasks.exe

    Description

    Schtasks is often used by malware for persistence or to perform post-infection execution.

    TTPs

    Scheduled Task

    Reported IOCs

    pidprocess
    3044schtasks.exe
  • Modifies data under HKEY_USERS
    explorer.exe

    Reported IOCs

    descriptioniocprocess
    Set value (data)\REGISTRY\USER\.DEFAULT\Software\Microsoft\Oksayofiivr\4affb8e8 = 6b1ffeb938679b57a0fa255e1f96c9dba93b521ca8c7da77ca58abbab4bb3aec1758f0861eexplorer.exe
    Set value (data)\REGISTRY\USER\.DEFAULT\Software\Microsoft\Oksayofiivr\f243df8d = f47c34699efadf979e9eccbf6f9ede7a85f088035e25b5599f6cexplorer.exe
    Set value (data)\REGISTRY\USER\.DEFAULT\Software\Microsoft\Oksayofiivr\8f4b9007 = ec90d46c4cebf17fbabde6073bfa5164ca1be188c980b28647296802873436aff6f40e6474bf8430e7c753c8d496explorer.exe
    Set value (data)\REGISTRY\USER\.DEFAULT\Software\Microsoft\Oksayofiivr\7d2148da = 68b499cd7739de901ba26b0668a575b6842cd53cd6f4a3b4d3f31d4b893272c45626190373e173ebc7ad659e5c03de296058ccb8a682b19a2f29121f496861be78e4c34aa8f05db8a00cab2fc8012259cd77cafea6d6b7fc9e0ef003537c011f10144a3a2e8d7f0ce21d16564793cdd530d1787f5c28c8b50727bdb4explorer.exe
    Key created\REGISTRY\USER\.DEFAULT\Software\Microsoft\Oksayofiivrexplorer.exe
    Set value (data)\REGISTRY\USER\.DEFAULT\Software\Microsoft\Oksayofiivr\7d2148da = 68b48ecd7739eb9cc2b280f8d5638a05f6180ce643c8c73ebe0c2bf3a4588a1d14b4f7cd79784f0bc707c503567f6fc0043409cd5bafb5cff208f09dbeb0fad73bafbbb465c0b71571b0ebb5677534b5536c118331791082b6fba27a6a78a1cdcfc78f98f28ec7explorer.exe
    Set value (data)\REGISTRY\USER\.DEFAULT\Software\Microsoft\Oksayofiivr\48be9894 = 63c69c20338618d634879cf1fb0a77b5960b6e5cb6ec929e0ebde438aa58e9c2d664ffc235b53ac061ae0466a6c19d8cb1f5cad94906beb1463eaa4b2f95e98973a743505e6bd9b3ec6d9d85d3ff1e699abbafe20c68892d200ba843a665b39031c3008b94266f155ca2a758ae0f1c63931fe2c654fc229a0befc3485e11e03cb591e91aa56c8b9302a287bd3e22bf1fcebdb9198b2acf67d3cc323ad13441689900a5c55f1d5595explorer.exe
    Set value (data)\REGISTRY\USER\.DEFAULT\Software\Microsoft\Oksayofiivr\37f7f762 = 9ef369100f73143a1694fa39cd1df1b52f09c01ceda55d3e59a23e8e5e7fexplorer.exe
    Set value (data)\REGISTRY\USER\.DEFAULT\Software\Microsoft\Oksayofiivr\f002fff1 = 2d301a859661155b84ea3e5809341924ce9d48c4b9explorer.exe
    Set value (data)\REGISTRY\USER\.DEFAULT\Software\Microsoft\Oksayofiivr\268272c = a0afc64fac30d3a3e1f9e8b5fe65235b31fcae55ec0e504c910328812d2d5c7d0c6b0301c53a4d221b88d666fda0794e1dexplorer.exe
  • Suspicious behavior: EnumeratesProcesses
    rundll32.exeregsvr32.exe

    Reported IOCs

    pidprocess
    1308rundll32.exe
    1308rundll32.exe
    2988regsvr32.exe
    2988regsvr32.exe
  • Suspicious behavior: MapViewOfSection
    rundll32.exeregsvr32.exe

    Reported IOCs

    pidprocess
    1308rundll32.exe
    2988regsvr32.exe
  • Suspicious use of WriteProcessMemory
    rundll32.exerundll32.exeexplorer.exeregsvr32.exeregsvr32.exeexplorer.exe

    Reported IOCs

    descriptionpidprocesstarget process
    PID 2332 wrote to memory of 13082332rundll32.exerundll32.exe
    PID 2332 wrote to memory of 13082332rundll32.exerundll32.exe
    PID 2332 wrote to memory of 13082332rundll32.exerundll32.exe
    PID 1308 wrote to memory of 37641308rundll32.exeexplorer.exe
    PID 1308 wrote to memory of 37641308rundll32.exeexplorer.exe
    PID 1308 wrote to memory of 37641308rundll32.exeexplorer.exe
    PID 1308 wrote to memory of 37641308rundll32.exeexplorer.exe
    PID 1308 wrote to memory of 37641308rundll32.exeexplorer.exe
    PID 3764 wrote to memory of 30443764explorer.exeschtasks.exe
    PID 3764 wrote to memory of 30443764explorer.exeschtasks.exe
    PID 3764 wrote to memory of 30443764explorer.exeschtasks.exe
    PID 2460 wrote to memory of 29882460regsvr32.exeregsvr32.exe
    PID 2460 wrote to memory of 29882460regsvr32.exeregsvr32.exe
    PID 2460 wrote to memory of 29882460regsvr32.exeregsvr32.exe
    PID 2988 wrote to memory of 3482988regsvr32.exeexplorer.exe
    PID 2988 wrote to memory of 3482988regsvr32.exeexplorer.exe
    PID 2988 wrote to memory of 3482988regsvr32.exeexplorer.exe
    PID 2988 wrote to memory of 3482988regsvr32.exeexplorer.exe
    PID 2988 wrote to memory of 3482988regsvr32.exeexplorer.exe
    PID 348 wrote to memory of 1884348explorer.exereg.exe
    PID 348 wrote to memory of 1884348explorer.exereg.exe
    PID 348 wrote to memory of 1356348explorer.exereg.exe
    PID 348 wrote to memory of 1356348explorer.exereg.exe
Processes 9
  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\c71ac46fba2237c4a8f62a62ce687ce1.dll,#1
    Suspicious use of WriteProcessMemory
    PID:2332
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\c71ac46fba2237c4a8f62a62ce687ce1.dll,#1
      Suspicious behavior: EnumeratesProcesses
      Suspicious behavior: MapViewOfSection
      Suspicious use of WriteProcessMemory
      PID:1308
      • C:\Windows\SysWOW64\explorer.exe
        C:\Windows\SysWOW64\explorer.exe
        Suspicious use of WriteProcessMemory
        PID:3764
        • C:\Windows\SysWOW64\schtasks.exe
          "C:\Windows\system32\schtasks.exe" /Create /RU "NT AUTHORITY\SYSTEM" /tn wkubttvv /tr "regsvr32.exe -s \"C:\Users\Admin\AppData\Local\Temp\c71ac46fba2237c4a8f62a62ce687ce1.dll\"" /SC ONCE /Z /ST 10:34 /ET 10:46
          Creates scheduled task(s)
          PID:3044
  • \??\c:\windows\system32\regsvr32.exe
    regsvr32.exe -s "C:\Users\Admin\AppData\Local\Temp\c71ac46fba2237c4a8f62a62ce687ce1.dll"
    Suspicious use of WriteProcessMemory
    PID:2460
    • C:\Windows\SysWOW64\regsvr32.exe
      -s "C:\Users\Admin\AppData\Local\Temp\c71ac46fba2237c4a8f62a62ce687ce1.dll"
      Loads dropped DLL
      Suspicious behavior: EnumeratesProcesses
      Suspicious behavior: MapViewOfSection
      Suspicious use of WriteProcessMemory
      PID:2988
      • C:\Windows\SysWOW64\explorer.exe
        C:\Windows\SysWOW64\explorer.exe
        Modifies data under HKEY_USERS
        Suspicious use of WriteProcessMemory
        PID:348
        • 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\Zyyaws" /d "0"
          PID:1884
        • 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\Bvbdek" /d "0"
          PID:1356
Network
MITRE ATT&CK Matrix
Collection
    Command and Control
      Credential Access
        Discovery
          Execution
            Exfiltration
              Impact
                Initial Access
                  Lateral Movement
                    Persistence
                    Privilege Escalation
                      Replay Monitor
                      00:00 00:00
                      Downloads
                      • C:\Users\Admin\AppData\Local\Temp\c71ac46fba2237c4a8f62a62ce687ce1.dll

                        MD5

                        c71ac46fba2237c4a8f62a62ce687ce1

                        SHA1

                        da6f18d68a8224d84491dd7ab175c8e6588c4575

                        SHA256

                        7e85568fd3f9ea14fc2a7f0f1a61499265b66001488413eaf2fd1ad86f97b05e

                        SHA512

                        662c833fb3220010a0b9774e31c68a48d84c68cc3d011f2e64f8afd71bd98aac4fd7afaf5620e546ca8c1b9ede4aacb8c045d0efa18e8d94851ae30a39ae2e91

                      • \Users\Admin\AppData\Local\Temp\c71ac46fba2237c4a8f62a62ce687ce1.dll

                        MD5

                        c71ac46fba2237c4a8f62a62ce687ce1

                        SHA1

                        da6f18d68a8224d84491dd7ab175c8e6588c4575

                        SHA256

                        7e85568fd3f9ea14fc2a7f0f1a61499265b66001488413eaf2fd1ad86f97b05e

                        SHA512

                        662c833fb3220010a0b9774e31c68a48d84c68cc3d011f2e64f8afd71bd98aac4fd7afaf5620e546ca8c1b9ede4aacb8c045d0efa18e8d94851ae30a39ae2e91

                      • memory/348-132-0x0000000000000000-mapping.dmp

                      • memory/348-137-0x00000000036B0000-0x00000000036D1000-memory.dmp

                      • memory/348-136-0x00000000006D0000-0x00000000006D1000-memory.dmp

                      • memory/348-135-0x00000000006D0000-0x00000000006D1000-memory.dmp

                      • memory/1308-119-0x0000000003100000-0x000000000324A000-memory.dmp

                      • memory/1308-116-0x0000000073E90000-0x0000000073F83000-memory.dmp

                      • memory/1308-118-0x0000000073E90000-0x0000000073F83000-memory.dmp

                      • memory/1308-117-0x0000000073E90000-0x0000000073EB1000-memory.dmp

                      • memory/1308-115-0x0000000000000000-mapping.dmp

                      • memory/1356-134-0x0000000000000000-mapping.dmp

                      • memory/1884-133-0x0000000000000000-mapping.dmp

                      • memory/2988-129-0x0000000072B20000-0x0000000072B41000-memory.dmp

                      • memory/2988-130-0x0000000072B20000-0x0000000072C13000-memory.dmp

                      • memory/2988-131-0x0000000000800000-0x000000000094A000-memory.dmp

                      • memory/2988-128-0x0000000072B20000-0x0000000072C13000-memory.dmp

                      • memory/2988-126-0x0000000000000000-mapping.dmp

                      • memory/3044-122-0x0000000000000000-mapping.dmp

                      • memory/3764-124-0x0000000000D30000-0x0000000000D31000-memory.dmp

                      • memory/3764-123-0x0000000000D30000-0x0000000000D31000-memory.dmp

                      • memory/3764-121-0x0000000000920000-0x0000000000941000-memory.dmp

                      • memory/3764-120-0x0000000000000000-mapping.dmp