Analysis

  • max time kernel
    150s
  • max time network
    127s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    04/07/2024, 01:40

General

  • Target

    1d8cf8997c79b9d5b0dabbcf698ff8ad.exe

  • Size

    492KB

  • MD5

    1d8cf8997c79b9d5b0dabbcf698ff8ad

  • SHA1

    04295f6f916e45d41ec632ff4e3b844d3f77bfde

  • SHA256

    25a144002a8255a86b41f65977f80a7939384b7c4a18aa4c9aa14cb8d5210359

  • SHA512

    8955eb287d22ddf60c4c80dc4b4adc2726e54184e8e59d03b0ab5792cb88044f94e4d5ccaf39d2513a8e55d9100385d1ceb9872dbb33f005e522d640838fde1d

  • SSDEEP

    12288:yjuTkMa586N2rAs3e3D35UQpXyjWz8iu6pqXALLbr2U7QFxyzw:ysUNl6yD2KXYWzj3rZQFz

Malware Config

Signatures

  • ModiLoader, DBatLoader

    ModiLoader is a Delphi loader that misuses cloud services to download other malicious families.

  • Modifies visiblity of hidden/system files in Explorer 2 TTPs 2 IoCs
  • ModiLoader Second Stage 2 IoCs
  • Deletes itself 1 IoCs
  • Executes dropped EXE 8 IoCs
  • Loads dropped DLL 14 IoCs
  • UPX packed file 6 IoCs

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

  • Adds Run key to start application 2 TTPs 52 IoCs
  • Drops desktop.ini file(s) 2 IoCs
  • Suspicious use of SetThreadContext 2 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Enumerates processes with tasklist 1 TTPs 3 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 5 IoCs
  • Suspicious use of FindShellTrayWindow 2 IoCs
  • Suspicious use of SendNotifyMessage 2 IoCs
  • Suspicious use of SetWindowsHookEx 5 IoCs
  • Suspicious use of UnmapMainImage 1 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • 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⤵
    • Executes dropped EXE
    • Drops desktop.ini file(s)
    • Suspicious use of UnmapMainImage
    • Suspicious use of WriteProcessMemory
    PID:336
  • C:\Windows\system32\svchost.exe
    C:\Windows\system32\svchost.exe -k netsvcs
    1⤵
      PID:852
      • C:\Windows\system32\wbem\WMIADAP.EXE
        wmiadap.exe /F /T /R
        2⤵
          PID:1324
      • C:\Windows\Explorer.EXE
        C:\Windows\Explorer.EXE
        1⤵
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of SendNotifyMessage
        PID:1192
        • C:\Users\Admin\AppData\Local\Temp\1d8cf8997c79b9d5b0dabbcf698ff8ad.exe
          "C:\Users\Admin\AppData\Local\Temp\1d8cf8997c79b9d5b0dabbcf698ff8ad.exe"
          2⤵
          • Loads dropped DLL
          • Suspicious use of SetWindowsHookEx
          • Suspicious use of WriteProcessMemory
          PID:2156
          • C:\Users\Admin\d3s3Jf2gX6.exe
            C:\Users\Admin\d3s3Jf2gX6.exe
            3⤵
            • Modifies visiblity of hidden/system files in Explorer
            • Executes dropped EXE
            • Loads dropped DLL
            • Adds Run key to start application
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of SetWindowsHookEx
            • Suspicious use of WriteProcessMemory
            PID:1240
            • C:\Users\Admin\yaaupot.exe
              "C:\Users\Admin\yaaupot.exe"
              4⤵
              • Modifies visiblity of hidden/system files in Explorer
              • Executes dropped EXE
              • Adds Run key to start application
              • Suspicious behavior: EnumeratesProcesses
              • Suspicious use of SetWindowsHookEx
              • Suspicious use of WriteProcessMemory
              PID:1904
            • C:\Windows\SysWOW64\cmd.exe
              "C:\Windows\System32\cmd.exe" /c tasklist&&del d3s3Jf2gX6.exe
              4⤵
              • Suspicious use of WriteProcessMemory
              PID:2928
              • C:\Windows\SysWOW64\tasklist.exe
                tasklist
                5⤵
                • Enumerates processes with tasklist
                • Suspicious use of AdjustPrivilegeToken
                PID:1572
          • C:\Users\Admin\ayhost.exe
            C:\Users\Admin\ayhost.exe
            3⤵
            • Executes dropped EXE
            • Suspicious use of SetThreadContext
            • Suspicious use of WriteProcessMemory
            PID:2492
            • C:\Users\Admin\ayhost.exe
              ayhost.exe
              4⤵
              • Executes dropped EXE
              • Suspicious behavior: EnumeratesProcesses
              PID:2496
          • C:\Users\Admin\bahost.exe
            C:\Users\Admin\bahost.exe
            3⤵
            • Executes dropped EXE
            • Suspicious use of SetThreadContext
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of AdjustPrivilegeToken
            • Suspicious use of WriteProcessMemory
            PID:848
            • C:\Windows\SysWOW64\cmd.exe
              "C:\Windows\system32\cmd.exe"
              4⤵
                PID:2748
            • C:\Users\Admin\djhost.exe
              C:\Users\Admin\djhost.exe
              3⤵
              • Executes dropped EXE
              • Suspicious use of SetWindowsHookEx
              PID:1776
            • C:\Users\Admin\ekhost.exe
              C:\Users\Admin\ekhost.exe
              3⤵
              • Executes dropped EXE
              • Loads dropped DLL
              • Suspicious use of SetWindowsHookEx
              • Suspicious use of WriteProcessMemory
              PID:3032
              • C:\Windows\SysWOW64\cmd.exe
                "C:\Windows\System32\cmd.exe" /c tasklist&&del ekhost.exe
                4⤵
                • Suspicious use of WriteProcessMemory
                PID:500
                • C:\Windows\SysWOW64\tasklist.exe
                  tasklist
                  5⤵
                  • Enumerates processes with tasklist
                  • Suspicious use of AdjustPrivilegeToken
                  PID:2008
            • C:\Windows\SysWOW64\cmd.exe
              "C:\Windows\System32\cmd.exe" /c tasklist&&del 1d8cf8997c79b9d5b0dabbcf698ff8ad.exe
              3⤵
              • Deletes itself
              • Suspicious use of WriteProcessMemory
              PID:676
              • C:\Windows\SysWOW64\tasklist.exe
                tasklist
                4⤵
                • Enumerates processes with tasklist
                • Suspicious use of AdjustPrivilegeToken
                PID:1120
        • C:\Windows\system32\DllHost.exe
          C:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}
          1⤵
            PID:1704
          • C:\Windows\system32\DllHost.exe
            C:\Windows\system32\DllHost.exe /Processid:{F9717507-6651-4EDB-BFF7-AE615179BCCF}
            1⤵
            • Loads dropped DLL
            PID:2908
          • C:\Windows\system32\wbem\wmiprvse.exe
            C:\Windows\system32\wbem\wmiprvse.exe -Embedding
            1⤵
              PID:952

            Network

            MITRE ATT&CK Enterprise v15

            Replay Monitor

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            Downloads

            • C:\Users\Admin\calc.exe

              Filesize

              764KB

              MD5

              e381b04abf596ed1573154cd41f418dc

              SHA1

              2ad1df7bebf1e4c0715adbf76c8c14b9162edf2e

              SHA256

              02b08664fcc196f15ff0e33e7ed43e9e78af7b564e3f7c5388dd7d0267905fe6

              SHA512

              44307e60bdc804b3abe710a21e2268960dcc9d29671cf8ce723e40721b6b38ae338c49cd1b9cfd4fa8fa4f644cc80414baeb70f136f39f73833f8373f8180858

            • C:\Windows\system32\consrv.dll

              Filesize

              53KB

              MD5

              4d7cde615a0f534bd5e359951829554b

              SHA1

              c885d00d9000f2a5dbc78f6193a052b36f4fe968

              SHA256

              414fdf9bdcae5136c1295d6d24740c50a484acd81f1f7d0fb5d5c138607cb80a

              SHA512

              33d632f9fbb694440a1ca568c90518784278efd1dc9ee2b57028149d56ebe1f7346d5b59dcfafee2eeaa10091dda05f48958e909d6bfc891e037ae1cfbd048d4

            • \??\globalroot\systemroot\assembly\temp\@

              Filesize

              2KB

              MD5

              bb7950e23de4cc1a030aff96408f61c3

              SHA1

              551d347d2673a40e899a970b5edcbd21317008db

              SHA256

              76155df2ff750895145b43ad644e1bca83412be569cfd2a21c23a04a06f2245e

              SHA512

              65bdbab46aec19adbff9c3c756e78ba446cb6c479dbf08f8a30a6d59b781a7409f2a6249ff8962aad861929ad71a097cc0138deceaca44be90490abd365fdb25

            • \Users\Admin\ayhost.exe

              Filesize

              80KB

              MD5

              8ccbe4f27f9710f3e7f75e1d1de57e49

              SHA1

              272e95e476477cd4a1715ee0bcf32318e0351718

              SHA256

              3d36ee15c25b2308f8552e121d885c26b46b4e7fc6dbb41a684bec53e0ae3b5d

              SHA512

              334f56b5158839f521513aff9de334536c86da633bf1a3b78592529275457973ed67fd55a54bef8f88ce918c2863c365cababfbd0ef888a27272906e281105d0

            • \Users\Admin\bahost.exe

              Filesize

              260KB

              MD5

              57d06744cbe8d579531f5704827605c1

              SHA1

              222404c29087c7481127d5616e209e8a8946b110

              SHA256

              42c00828ea0ca557e2f50c49ebc24d3e2ffbd207ad6128e002ee9487be0e7f1a

              SHA512

              1d22108dbca3e6566a14e687077cfca481adf2eb4d6a214e49c2242f4aa3701f1a31037993f3ba78c41f9242666b2b0b1424f983ee660eae2e89b3c492d93093

            • \Users\Admin\d3s3Jf2gX6.exe

              Filesize

              280KB

              MD5

              b3c7427a9509d61a373b377e668c8ddd

              SHA1

              80b7a9d3fea90879ac10e4cbbd70968aaf8f46d3

              SHA256

              b24dacfe819e4b8e04e3d1ae5a82ffda05ce5c870c0ce530f723c29c76fe5a28

              SHA512

              616411ce4b75b80bba9bb901848f9814624deb89a941d4f13b2bc66b63a2eab230354f320a61610bb9166d368a77a3036068f3a7c76d0d0078e71b653e10c7fe

            • \Users\Admin\djhost.exe

              Filesize

              32KB

              MD5

              af152804736fe7af65e4b49633a2d185

              SHA1

              3c2ecabfbdca7b4bfed2fbaae7cfeabe9d439d35

              SHA256

              45b8430d8053f791bfcd0033ae2cdfed2b253a0f6835395055345058ab18c40e

              SHA512

              749461feaacada8ddec990df90ae5f580fb9b6b0bad680015a7067d66ecd785822bb50223dc734d29016cb29dfa98c9efa08d53b99dc0e0fe26193ff12742cd6

            • \Users\Admin\ekhost.exe

              Filesize

              24KB

              MD5

              046275674448c41615014cf770ee4f53

              SHA1

              4f51eb674e199d6b901aaffb55c4aeafb94acfb3

              SHA256

              3c561abc78eb200f46286b30765a2f6bf6b6bc9c6f433b327955d2e0ef6aaa6f

              SHA512

              db35c805e516209d0ee02e182711360ea2a49f7de5c79a01fe448beb673abe83ac638cf1c0b04c4e45f608fad490cdd5f8d2bd99aa0c0c679fb3fc9a77bbe0e2

            • \Users\Admin\yaaupot.exe

              Filesize

              280KB

              MD5

              df3b05884d68c74c7011f225bf3a5da7

              SHA1

              7e08c8b383259ae44d97514ba3d5791287eca03d

              SHA256

              d2c6b9c0f7dcd70e8941dd359b5f7c8fc26999101537e44668932aa387e56b3f

              SHA512

              572ee79aeb2f34852e5705ae62a7c33e213fa3fd5b7d47758b23bfda75685af436068cfbe3850563826e30a12d5018fd16bebce71288bc929bab8a4e988e78de

            • \Windows\assembly\GAC_32\Desktop.ini

              Filesize

              4KB

              MD5

              878f9b6da85cb98fcbdf6abd1730a32f

              SHA1

              343007e658ea541f4680b4edf4513e69e1cc18a6

              SHA256

              75b5a460ed6f47fca8ec1bcd8a11b22f24fb33de4d5f307b851ad20c7f831b7d

              SHA512

              5425844e34ad5e717b08830020526f5c9465f654f3e9e29967b2983d5cb8dc225be2b89cd29a8e4cc99fcfc99e05556f66eefa0539283ab4569e603413a37293

            • \Windows\assembly\GAC_64\Desktop.ini

              Filesize

              5KB

              MD5

              9d7ec1e355ac35cbe6991721ef5ae3b8

              SHA1

              c35a00bd35c6e4a7516b93947be08ead966347e8

              SHA256

              68a3cec42215323100398a8eb2cbb37da7d58fe0fa9c6312e954e0f50a95ca98

              SHA512

              b7c4be28d8e179974672205a50e72fa1ec9e2e8170b3b8ee763e1751a3397c35afec7a72c88f0a79a8566749b2af1ff054660a96c3a6d6508c545d316a035dc0

            • memory/336-133-0x0000000000EA0000-0x0000000000EB2000-memory.dmp

              Filesize

              72KB

            • memory/336-86-0x0000000000EA0000-0x0000000000EB2000-memory.dmp

              Filesize

              72KB

            • memory/848-90-0x0000000000400000-0x0000000000446000-memory.dmp

              Filesize

              280KB

            • memory/848-67-0x00000000008A0000-0x00000000008E0000-memory.dmp

              Filesize

              256KB

            • memory/848-63-0x00000000008A0000-0x00000000008E0000-memory.dmp

              Filesize

              256KB

            • memory/848-59-0x00000000008A0000-0x00000000008E0000-memory.dmp

              Filesize

              256KB

            • memory/848-69-0x00000000008A0000-0x00000000008E0000-memory.dmp

              Filesize

              256KB

            • memory/848-71-0x00000000008A0000-0x00000000008E0000-memory.dmp

              Filesize

              256KB

            • memory/848-68-0x00000000008A0000-0x00000000008E0000-memory.dmp

              Filesize

              256KB

            • memory/852-143-0x0000000000460000-0x000000000046B000-memory.dmp

              Filesize

              44KB

            • memory/852-136-0x0000000000460000-0x000000000046B000-memory.dmp

              Filesize

              44KB

            • memory/852-139-0x0000000000460000-0x000000000046B000-memory.dmp

              Filesize

              44KB

            • memory/1192-80-0x0000000002510000-0x0000000002516000-memory.dmp

              Filesize

              24KB

            • memory/1192-76-0x0000000002510000-0x0000000002516000-memory.dmp

              Filesize

              24KB

            • memory/1192-72-0x0000000002510000-0x0000000002516000-memory.dmp

              Filesize

              24KB

            • memory/2492-51-0x0000000000400000-0x0000000000417000-memory.dmp

              Filesize

              92KB

            • memory/2496-49-0x0000000000400000-0x000000000040E000-memory.dmp

              Filesize

              56KB

            • memory/2496-50-0x0000000000400000-0x000000000040E000-memory.dmp

              Filesize

              56KB

            • memory/2496-48-0x0000000000400000-0x000000000040E000-memory.dmp

              Filesize

              56KB

            • memory/2496-44-0x0000000000400000-0x000000000040E000-memory.dmp

              Filesize

              56KB

            • memory/2496-43-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

              Filesize

              4KB

            • memory/2496-40-0x0000000000400000-0x000000000040E000-memory.dmp

              Filesize

              56KB

            • memory/2496-38-0x0000000000400000-0x000000000040E000-memory.dmp

              Filesize

              56KB

            • memory/2496-36-0x0000000000400000-0x000000000040E000-memory.dmp

              Filesize

              56KB