Analysis

  • max time kernel
    121s
  • max time network
    122s
  • platform
    windows7_x64
  • resource
    win7-20231129-en
  • resource tags

    arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
  • submitted
    25/12/2023, 11:52

General

  • Target

    1c2c40d5632e8c96c5c1c89ce25d509d.exe

  • Size

    1.1MB

  • MD5

    1c2c40d5632e8c96c5c1c89ce25d509d

  • SHA1

    ebdd17061924f8d9f6e2d22b4e47ea701f747fe9

  • SHA256

    40405a2957865a4a08f8a4aa99f75cae76e94892094cb459ed76969f75f1b6e2

  • SHA512

    8a89ae7f8ed93acdb49b0bfb3b8ef69ec40c8fd08394bc8552f906c7649176ead84f6c6c40a99d9375a91b8af4210aa8fb45431a68d0b8ec8e7b9d50f5c40685

  • SSDEEP

    12288:apqiC/2OjAt4CP4cejGSOCRK2CGYP/qts2V8f:apo/2xtxPJLfCRK2CGYPSe2Y

Malware Config

Signatures

  • Modifies WinLogon for persistence 2 TTPs 1 IoCs
  • Ramnit

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

  • Disables RegEdit via registry modification 1 IoCs
  • Disables Task Manager via registry modification
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 2 IoCs
  • UPX packed file 7 IoCs

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

  • Adds Run key to start application 2 TTPs 1 IoCs
  • AutoIT Executable 2 IoCs

    AutoIT scripts compiled to PE executables.

  • Drops file in Program Files directory 3 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Modifies Internet Explorer settings 1 TTPs 5 IoCs
  • Modifies Internet Explorer start page 1 TTPs 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 3 IoCs
  • Suspicious behavior: MapViewOfSection 45 IoCs
  • Suspicious use of AdjustPrivilegeToken 26 IoCs
  • Suspicious use of UnmapMainImage 1 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\1c2c40d5632e8c96c5c1c89ce25d509d.exe
    "C:\Users\Admin\AppData\Local\Temp\1c2c40d5632e8c96c5c1c89ce25d509d.exe"
    1⤵
    • Modifies WinLogon for persistence
    • Disables RegEdit via registry modification
    • Loads dropped DLL
    • Adds Run key to start application
    • Modifies Internet Explorer settings
    • Modifies Internet Explorer start page
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: MapViewOfSection
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2732
    • C:\Users\Admin\AppData\Local\Temp\1c2c40d5632e8c96c5c1c89ce25d509dmgr.exe
      C:\Users\Admin\AppData\Local\Temp\1c2c40d5632e8c96c5c1c89ce25d509dmgr.exe
      2⤵
      • Executes dropped EXE
      • Drops file in Program Files directory
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: MapViewOfSection
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of UnmapMainImage
      PID:1728
  • C:\Windows\system32\sppsvc.exe
    C:\Windows\system32\sppsvc.exe
    1⤵
      PID:2156
    • C:\Windows\system32\svchost.exe
      C:\Windows\system32\svchost.exe -k LocalServiceAndNoImpersonation
      1⤵
        PID:3024
      • C:\Windows\system32\DllHost.exe
        C:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}
        1⤵
          PID:904
        • C:\Windows\Explorer.EXE
          C:\Windows\Explorer.EXE
          1⤵
            PID:1276
          • C:\Windows\system32\Dwm.exe
            "C:\Windows\system32\Dwm.exe"
            1⤵
              PID:1224
            • C:\Windows\system32\taskhost.exe
              "taskhost.exe"
              1⤵
                PID:1148
              • C:\Windows\system32\svchost.exe
                C:\Windows\system32\svchost.exe -k LocalServiceNoNetwork
                1⤵
                  PID:112
                • C:\Windows\System32\spoolsv.exe
                  C:\Windows\System32\spoolsv.exe
                  1⤵
                    PID:920
                  • C:\Windows\system32\svchost.exe
                    C:\Windows\system32\svchost.exe -k NetworkService
                    1⤵
                      PID:296
                    • C:\Windows\system32\svchost.exe
                      C:\Windows\system32\svchost.exe -k LocalService
                      1⤵
                        PID:996
                      • C:\Windows\system32\svchost.exe
                        C:\Windows\system32\svchost.exe -k netsvcs
                        1⤵
                          PID:852
                        • C:\Windows\System32\svchost.exe
                          C:\Windows\System32\svchost.exe -k LocalSystemNetworkRestricted
                          1⤵
                            PID:816
                          • C:\Windows\System32\svchost.exe
                            C:\Windows\System32\svchost.exe -k LocalServiceNetworkRestricted
                            1⤵
                              PID:748
                            • C:\Windows\system32\svchost.exe
                              C:\Windows\system32\svchost.exe -k RPCSS
                              1⤵
                                PID:676
                              • C:\Windows\system32\svchost.exe
                                C:\Windows\system32\svchost.exe -k DcomLaunch
                                1⤵
                                  PID:596
                                • C:\Windows\system32\lsm.exe
                                  C:\Windows\system32\lsm.exe
                                  1⤵
                                    PID:500
                                  • C:\Windows\system32\lsass.exe
                                    C:\Windows\system32\lsass.exe
                                    1⤵
                                      PID:492
                                    • C:\Windows\system32\services.exe
                                      C:\Windows\system32\services.exe
                                      1⤵
                                        PID:484
                                      • C:\Windows\system32\winlogon.exe
                                        winlogon.exe
                                        1⤵
                                          PID:436
                                        • 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:400
                                          • C:\Windows\system32\wininit.exe
                                            wininit.exe
                                            1⤵
                                              PID:384

                                            Network

                                            MITRE ATT&CK Enterprise v15

                                            Replay Monitor

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                                            Downloads

                                            • C:\Users\Admin\AppData\Local\Temp\1c2c40d5632e8c96c5c1c89ce25d509dmgr.exe

                                              Filesize

                                              159KB

                                              MD5

                                              b5dd6ddb9a082cf03530700ba4c62da1

                                              SHA1

                                              16a0094c75225491aa6a22f8484b108506e1d329

                                              SHA256

                                              4f6db8a4473e1f2033c98aa9f882bdc5152b805d7c8727ed3bd600ef8636ee10

                                              SHA512

                                              a0e31060b058e9d53e870b69e7ef3d00c9f4ff005e1176e17f482f504b2309ff2f9e9e6f04a7a68b012e2edc1a2aa5a6153aac9e624c4084e16c3335fcd6971e

                                            • memory/1728-19-0x0000000000400000-0x0000000000421000-memory.dmp

                                              Filesize

                                              132KB

                                            • memory/1728-14-0x0000000000400000-0x0000000000421000-memory.dmp

                                              Filesize

                                              132KB

                                            • memory/1728-16-0x0000000000400000-0x0000000000421000-memory.dmp

                                              Filesize

                                              132KB

                                            • memory/1728-18-0x0000000000400000-0x0000000000421000-memory.dmp

                                              Filesize

                                              132KB

                                            • memory/1728-10-0x0000000000400000-0x0000000000433000-memory.dmp

                                              Filesize

                                              204KB

                                            • memory/1728-15-0x000000007711F000-0x0000000077120000-memory.dmp

                                              Filesize

                                              4KB

                                            • memory/1728-26-0x0000000000400000-0x0000000000421000-memory.dmp

                                              Filesize

                                              132KB

                                            • memory/1728-24-0x00000000001A0000-0x00000000001A1000-memory.dmp

                                              Filesize

                                              4KB

                                            • memory/1728-23-0x0000000000400000-0x0000000000421000-memory.dmp

                                              Filesize

                                              132KB

                                            • memory/1728-17-0x0000000077120000-0x0000000077121000-memory.dmp

                                              Filesize

                                              4KB

                                            • memory/1728-21-0x0000000000400000-0x0000000000421000-memory.dmp

                                              Filesize

                                              132KB

                                            • memory/2732-22-0x0000000000260000-0x0000000000293000-memory.dmp

                                              Filesize

                                              204KB

                                            • memory/2732-12-0x000000007711F000-0x0000000077120000-memory.dmp

                                              Filesize

                                              4KB

                                            • memory/2732-37-0x0000000000400000-0x0000000000538000-memory.dmp

                                              Filesize

                                              1.2MB

                                            • memory/2732-13-0x0000000077120000-0x0000000077121000-memory.dmp

                                              Filesize

                                              4KB

                                            • memory/2732-11-0x0000000077120000-0x0000000077121000-memory.dmp

                                              Filesize

                                              4KB

                                            • memory/2732-38-0x000000007FFF0000-0x000000007FFFA000-memory.dmp

                                              Filesize

                                              40KB

                                            • memory/2732-9-0x0000000000260000-0x0000000000293000-memory.dmp

                                              Filesize

                                              204KB

                                            • memory/2732-20-0x000000007FFF0000-0x000000007FFFA000-memory.dmp

                                              Filesize

                                              40KB

                                            • memory/2732-1-0x0000000000400000-0x0000000000538000-memory.dmp

                                              Filesize

                                              1.2MB