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Analysis

  • max time kernel
    150s
  • max time network
    126s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    03/12/2022, 12:17

General

  • Target

    81ecf1e8d5fc1b219decfaf8d374d25dc55665ab99ad3a57984b1eb9e56299bc.exe

  • Size

    326KB

  • MD5

    834352e9f4dc7be5490f3c537a3c67d8

  • SHA1

    b62006881416e5a622440d707675fccb71ff08d1

  • SHA256

    81ecf1e8d5fc1b219decfaf8d374d25dc55665ab99ad3a57984b1eb9e56299bc

  • SHA512

    cd54336a69d5f5fdd8fc239a2b74fd4b8e3bd687d76b87bf1c729e4c8ec9ab0ce7bb67411aacceeb8aad6d62e4b5418e86533742853edaa992e9ed0ed3688fb9

  • SSDEEP

    6144:G5BJM60rrnM5GDwDxIl3EIofWjcg96M6TgG3uP7Int0aQ7ZVUH0K5s:yq1rnM5VDalcfWjc7Tb33a9VsJ5s

Malware Config

Signatures

  • Modifies WinLogon for persistence 2 TTPs 1 IoCs
  • Ramnit

    Ramnit is a versatile family that holds viruses, worms, and Trojans.

  • Executes dropped EXE 2 IoCs
  • UPX packed file 6 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • Loads dropped DLL 4 IoCs
  • Drops file in System32 directory 2 IoCs
  • Drops file in Program Files directory 10 IoCs
  • Suspicious behavior: EnumeratesProcesses 25 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of UnmapMainImage 2 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Windows\system32\lsass.exe
    C:\Windows\system32\lsass.exe
    1⤵
      PID:476
    • C:\Windows\system32\services.exe
      C:\Windows\system32\services.exe
      1⤵
        PID:460
        • C:\Windows\System32\svchost.exe
          C:\Windows\System32\svchost.exe -k LocalServiceNetworkRestricted
          2⤵
            PID:724
          • C:\Windows\System32\svchost.exe
            C:\Windows\System32\svchost.exe -k LocalSystemNetworkRestricted
            2⤵
              PID:812
              • C:\Windows\system32\Dwm.exe
                "C:\Windows\system32\Dwm.exe"
                3⤵
                  PID:1184
              • C:\Windows\system32\svchost.exe
                C:\Windows\system32\svchost.exe -k netsvcs
                2⤵
                  PID:880
                  • \\?\C:\Windows\system32\wbem\WMIADAP.EXE
                    wmiadap.exe /F /T /R
                    3⤵
                      PID:1328
                  • C:\Windows\System32\spoolsv.exe
                    C:\Windows\System32\spoolsv.exe
                    2⤵
                      PID:656
                    • C:\Windows\system32\taskhost.exe
                      "taskhost.exe"
                      2⤵
                        PID:1128
                      • C:\Windows\system32\svchost.exe
                        C:\Windows\system32\svchost.exe -k LocalServiceNoNetwork
                        2⤵
                          PID:1056
                        • C:\Windows\system32\svchost.exe
                          C:\Windows\system32\svchost.exe -k LocalServiceAndNoImpersonation
                          2⤵
                            PID:1832
                          • C:\Windows\system32\svchost.exe
                            C:\Windows\system32\svchost.exe -k NetworkService
                            2⤵
                              PID:296
                            • C:\Windows\system32\svchost.exe
                              C:\Windows\system32\svchost.exe -k LocalService
                              2⤵
                                PID:844
                              • C:\Windows\system32\svchost.exe
                                C:\Windows\system32\svchost.exe -k RPCSS
                                2⤵
                                  PID:672
                                • C:\Windows\system32\sppsvc.exe
                                  C:\Windows\system32\sppsvc.exe
                                  2⤵
                                    PID:1996
                                  • C:\Windows\system32\svchost.exe
                                    C:\Windows\system32\svchost.exe -k DcomLaunch
                                    2⤵
                                      PID:596
                                  • C:\Windows\system32\winlogon.exe
                                    winlogon.exe
                                    1⤵
                                      PID:416
                                    • C:\Windows\system32\csrss.exe
                                      %SystemRoot%\system32\csrss.exe ObjectDirectory=\Windows SharedSection=1024,20480,768 Windows=On SubSystemType=Windows ServerDll=basesrv,1 ServerDll=winsrv:UserServerDllInitialization,3 ServerDll=winsrv:ConServerDllInitialization,2 ServerDll=sxssrv,4 ProfileControl=Off MaxRequestThreads=16
                                      1⤵
                                        PID:376
                                      • C:\Windows\system32\wininit.exe
                                        wininit.exe
                                        1⤵
                                          PID:368
                                          • C:\Windows\system32\lsm.exe
                                            C:\Windows\system32\lsm.exe
                                            2⤵
                                              PID:484
                                          • C:\Windows\system32\csrss.exe
                                            %SystemRoot%\system32\csrss.exe ObjectDirectory=\Windows SharedSection=1024,20480,768 Windows=On SubSystemType=Windows ServerDll=basesrv,1 ServerDll=winsrv:UserServerDllInitialization,3 ServerDll=winsrv:ConServerDllInitialization,2 ServerDll=sxssrv,4 ProfileControl=Off MaxRequestThreads=16
                                            1⤵
                                              PID:332
                                            • C:\Windows\System32\smss.exe
                                              \SystemRoot\System32\smss.exe
                                              1⤵
                                                PID:260
                                              • C:\Windows\Explorer.EXE
                                                C:\Windows\Explorer.EXE
                                                1⤵
                                                  PID:1212
                                                  • C:\Users\Admin\AppData\Local\Temp\81ecf1e8d5fc1b219decfaf8d374d25dc55665ab99ad3a57984b1eb9e56299bc.exe
                                                    "C:\Users\Admin\AppData\Local\Temp\81ecf1e8d5fc1b219decfaf8d374d25dc55665ab99ad3a57984b1eb9e56299bc.exe"
                                                    2⤵
                                                    • Loads dropped DLL
                                                    • Suspicious use of AdjustPrivilegeToken
                                                    • Suspicious use of SetWindowsHookEx
                                                    • Suspicious use of WriteProcessMemory
                                                    PID:1764
                                                    • C:\Users\Admin\AppData\Local\Temp\81ecf1e8d5fc1b219decfaf8d374d25dc55665ab99ad3a57984b1eb9e56299bcmgr.exe
                                                      C:\Users\Admin\AppData\Local\Temp\81ecf1e8d5fc1b219decfaf8d374d25dc55665ab99ad3a57984b1eb9e56299bcmgr.exe
                                                      3⤵
                                                      • Executes dropped EXE
                                                      • Loads dropped DLL
                                                      • Drops file in Program Files directory
                                                      • Suspicious use of UnmapMainImage
                                                      • Suspicious use of WriteProcessMemory
                                                      PID:1480
                                                      • C:\Program Files (x86)\Microsoft\WaterMark.exe
                                                        "C:\Program Files (x86)\Microsoft\WaterMark.exe"
                                                        4⤵
                                                        • Executes dropped EXE
                                                        • Suspicious behavior: EnumeratesProcesses
                                                        • Suspicious use of AdjustPrivilegeToken
                                                        • Suspicious use of UnmapMainImage
                                                        • Suspicious use of WriteProcessMemory
                                                        PID:520
                                                        • C:\Windows\SysWOW64\svchost.exe
                                                          C:\Windows\system32\svchost.exe
                                                          5⤵
                                                          • Modifies WinLogon for persistence
                                                          • Drops file in System32 directory
                                                          • Drops file in Program Files directory
                                                          PID:1680
                                                        • C:\Windows\SysWOW64\svchost.exe
                                                          C:\Windows\system32\svchost.exe
                                                          5⤵
                                                          • Suspicious behavior: EnumeratesProcesses
                                                          • Suspicious use of AdjustPrivilegeToken
                                                          • Suspicious use of WriteProcessMemory
                                                          PID:1632
                                                • C:\Windows\system32\wbem\wmiprvse.exe
                                                  C:\Windows\system32\wbem\wmiprvse.exe
                                                  1⤵
                                                    PID:1988

                                                  Network

                                                  MITRE ATT&CK Enterprise v6

                                                  Replay Monitor

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                                                  Downloads

                                                  • C:\Program Files (x86)\Microsoft\WaterMark.exe

                                                    Filesize

                                                    102KB

                                                    MD5

                                                    70b04c8c018befad3751d3f4d24d3bcb

                                                    SHA1

                                                    78df84b2b59d909efc9630ff1408f4b4c5392f7d

                                                    SHA256

                                                    90530f86af79995047d051ca4fdbe02456ff4445073fe6f4e0c13e3f97d6ccee

                                                    SHA512

                                                    649f6ba6af342d064981f2e02780ba6d68f204e3b8648685787a5e58e6cbeadec1d13c363c1d19a7136633cde8361f560d89311c6ef6b99dbb2b7c684aef9f06

                                                  • C:\Program Files (x86)\Microsoft\WaterMark.exe

                                                    Filesize

                                                    102KB

                                                    MD5

                                                    70b04c8c018befad3751d3f4d24d3bcb

                                                    SHA1

                                                    78df84b2b59d909efc9630ff1408f4b4c5392f7d

                                                    SHA256

                                                    90530f86af79995047d051ca4fdbe02456ff4445073fe6f4e0c13e3f97d6ccee

                                                    SHA512

                                                    649f6ba6af342d064981f2e02780ba6d68f204e3b8648685787a5e58e6cbeadec1d13c363c1d19a7136633cde8361f560d89311c6ef6b99dbb2b7c684aef9f06

                                                  • C:\Users\Admin\AppData\Local\Temp\81ecf1e8d5fc1b219decfaf8d374d25dc55665ab99ad3a57984b1eb9e56299bcmgr.exe

                                                    Filesize

                                                    102KB

                                                    MD5

                                                    70b04c8c018befad3751d3f4d24d3bcb

                                                    SHA1

                                                    78df84b2b59d909efc9630ff1408f4b4c5392f7d

                                                    SHA256

                                                    90530f86af79995047d051ca4fdbe02456ff4445073fe6f4e0c13e3f97d6ccee

                                                    SHA512

                                                    649f6ba6af342d064981f2e02780ba6d68f204e3b8648685787a5e58e6cbeadec1d13c363c1d19a7136633cde8361f560d89311c6ef6b99dbb2b7c684aef9f06

                                                  • C:\Users\Admin\AppData\Local\Temp\81ecf1e8d5fc1b219decfaf8d374d25dc55665ab99ad3a57984b1eb9e56299bcmgr.exe

                                                    Filesize

                                                    102KB

                                                    MD5

                                                    70b04c8c018befad3751d3f4d24d3bcb

                                                    SHA1

                                                    78df84b2b59d909efc9630ff1408f4b4c5392f7d

                                                    SHA256

                                                    90530f86af79995047d051ca4fdbe02456ff4445073fe6f4e0c13e3f97d6ccee

                                                    SHA512

                                                    649f6ba6af342d064981f2e02780ba6d68f204e3b8648685787a5e58e6cbeadec1d13c363c1d19a7136633cde8361f560d89311c6ef6b99dbb2b7c684aef9f06

                                                  • \Program Files (x86)\Microsoft\WaterMark.exe

                                                    Filesize

                                                    102KB

                                                    MD5

                                                    70b04c8c018befad3751d3f4d24d3bcb

                                                    SHA1

                                                    78df84b2b59d909efc9630ff1408f4b4c5392f7d

                                                    SHA256

                                                    90530f86af79995047d051ca4fdbe02456ff4445073fe6f4e0c13e3f97d6ccee

                                                    SHA512

                                                    649f6ba6af342d064981f2e02780ba6d68f204e3b8648685787a5e58e6cbeadec1d13c363c1d19a7136633cde8361f560d89311c6ef6b99dbb2b7c684aef9f06

                                                  • \Program Files (x86)\Microsoft\WaterMark.exe

                                                    Filesize

                                                    102KB

                                                    MD5

                                                    70b04c8c018befad3751d3f4d24d3bcb

                                                    SHA1

                                                    78df84b2b59d909efc9630ff1408f4b4c5392f7d

                                                    SHA256

                                                    90530f86af79995047d051ca4fdbe02456ff4445073fe6f4e0c13e3f97d6ccee

                                                    SHA512

                                                    649f6ba6af342d064981f2e02780ba6d68f204e3b8648685787a5e58e6cbeadec1d13c363c1d19a7136633cde8361f560d89311c6ef6b99dbb2b7c684aef9f06

                                                  • \Users\Admin\AppData\Local\Temp\81ecf1e8d5fc1b219decfaf8d374d25dc55665ab99ad3a57984b1eb9e56299bcmgr.exe

                                                    Filesize

                                                    102KB

                                                    MD5

                                                    70b04c8c018befad3751d3f4d24d3bcb

                                                    SHA1

                                                    78df84b2b59d909efc9630ff1408f4b4c5392f7d

                                                    SHA256

                                                    90530f86af79995047d051ca4fdbe02456ff4445073fe6f4e0c13e3f97d6ccee

                                                    SHA512

                                                    649f6ba6af342d064981f2e02780ba6d68f204e3b8648685787a5e58e6cbeadec1d13c363c1d19a7136633cde8361f560d89311c6ef6b99dbb2b7c684aef9f06

                                                  • \Users\Admin\AppData\Local\Temp\81ecf1e8d5fc1b219decfaf8d374d25dc55665ab99ad3a57984b1eb9e56299bcmgr.exe

                                                    Filesize

                                                    102KB

                                                    MD5

                                                    70b04c8c018befad3751d3f4d24d3bcb

                                                    SHA1

                                                    78df84b2b59d909efc9630ff1408f4b4c5392f7d

                                                    SHA256

                                                    90530f86af79995047d051ca4fdbe02456ff4445073fe6f4e0c13e3f97d6ccee

                                                    SHA512

                                                    649f6ba6af342d064981f2e02780ba6d68f204e3b8648685787a5e58e6cbeadec1d13c363c1d19a7136633cde8361f560d89311c6ef6b99dbb2b7c684aef9f06

                                                  • memory/520-87-0x0000000000400000-0x0000000000424000-memory.dmp

                                                    Filesize

                                                    144KB

                                                  • memory/520-205-0x0000000000400000-0x0000000000421000-memory.dmp

                                                    Filesize

                                                    132KB

                                                  • memory/1480-62-0x0000000000400000-0x0000000000421000-memory.dmp

                                                    Filesize

                                                    132KB

                                                  • memory/1480-68-0x0000000000400000-0x0000000000421000-memory.dmp

                                                    Filesize

                                                    132KB

                                                  • memory/1480-61-0x0000000000400000-0x0000000000421000-memory.dmp

                                                    Filesize

                                                    132KB

                                                  • memory/1632-93-0x0000000020010000-0x000000002001B000-memory.dmp

                                                    Filesize

                                                    44KB

                                                  • memory/1632-90-0x0000000020010000-0x000000002001B000-memory.dmp

                                                    Filesize

                                                    44KB

                                                  • memory/1680-80-0x0000000020010000-0x0000000020022000-memory.dmp

                                                    Filesize

                                                    72KB

                                                  • memory/1680-88-0x0000000020010000-0x0000000020022000-memory.dmp

                                                    Filesize

                                                    72KB

                                                  • memory/1680-76-0x0000000020010000-0x0000000020022000-memory.dmp

                                                    Filesize

                                                    72KB

                                                  • memory/1680-79-0x0000000076261000-0x0000000076263000-memory.dmp

                                                    Filesize

                                                    8KB

                                                  • memory/1680-206-0x0000000020010000-0x0000000020022000-memory.dmp

                                                    Filesize

                                                    72KB

                                                  • memory/1764-86-0x0000000000490000-0x00000000004B4000-memory.dmp

                                                    Filesize

                                                    144KB

                                                  • memory/1764-85-0x0000000000490000-0x00000000004B4000-memory.dmp

                                                    Filesize

                                                    144KB

                                                  • memory/1764-84-0x0000000000400000-0x000000000048F000-memory.dmp

                                                    Filesize

                                                    572KB

                                                  • memory/1764-861-0x0000000000490000-0x00000000004B4000-memory.dmp

                                                    Filesize

                                                    144KB

                                                  • memory/1764-862-0x0000000000490000-0x00000000004B4000-memory.dmp

                                                    Filesize

                                                    144KB