Analysis

  • max time kernel
    91s
  • max time network
    93s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    21-01-2025 02:56

General

  • Target

    cc935886c742fb4a4fd6e9c402c89f8fd3351a678ea27b3ea09be8bedc5a6a5f.exe

  • Size

    95KB

  • MD5

    b481e709f45d3e9dbb44338c5fcb8b33

  • SHA1

    addbce0b429a93b7c78b335bd527dbc31bbb7036

  • SHA256

    cc935886c742fb4a4fd6e9c402c89f8fd3351a678ea27b3ea09be8bedc5a6a5f

  • SHA512

    ea3c9811ed7af7278f6bccacf1c45edc9e86781c9e43b5b7e51231c97bbf442ea9a26e7661148e1331a93b0d68e208a91f603b914f8d351ff35304d3f12e61d3

  • SSDEEP

    1536:e3Ynb+B0cU3rkgqre/s9/Vbr27lbOgm3MhSn/s8Xo48FNSF5E8k8jwaaHw7Koj4g:EYnb+BR6X0/VbcbIMhe/nXo/eFFk8jwC

Malware Config

Signatures

  • Ramnit

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

  • Ramnit family
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Executes dropped EXE 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Program crash 2 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 6 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Modifies Internet Explorer settings 1 TTPs 32 IoCs
  • Suspicious behavior: LoadsDriver 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of FindShellTrayWindow 2 IoCs
  • Suspicious use of SetWindowsHookEx 12 IoCs
  • Suspicious use of WriteProcessMemory 37 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\cc935886c742fb4a4fd6e9c402c89f8fd3351a678ea27b3ea09be8bedc5a6a5f.exe
    "C:\Users\Admin\AppData\Local\Temp\cc935886c742fb4a4fd6e9c402c89f8fd3351a678ea27b3ea09be8bedc5a6a5f.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1496
    • C:\Windows\SysWOW64\svchost.exe
      C:\Windows\system32\svchost.exe
      2⤵
        PID:2412
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 2412 -s 204
          3⤵
          • Program crash
          PID:3580
      • C:\Program Files (x86)\Internet Explorer\iexplore.exe
        "C:\Program Files (x86)\Internet Explorer\iexplore.exe"
        2⤵
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:936
        • C:\Program Files\Internet Explorer\IEXPLORE.EXE
          "C:\Program Files\Internet Explorer\IEXPLORE.EXE"
          3⤵
          • Modifies Internet Explorer settings
          • Suspicious use of FindShellTrayWindow
          • Suspicious use of SetWindowsHookEx
          • Suspicious use of WriteProcessMemory
          PID:1328
          • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
            "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:1328 CREDAT:17410 /prefetch:2
            4⤵
            • System Location Discovery: System Language Discovery
            • Modifies Internet Explorer settings
            • Suspicious use of SetWindowsHookEx
            PID:2136
          • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
            "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:1328 CREDAT:17416 /prefetch:2
            4⤵
            • System Location Discovery: System Language Discovery
            • Modifies Internet Explorer settings
            • Suspicious use of SetWindowsHookEx
            PID:1044
      • C:\Windows\SysWOW64\svchost.exe
        C:\Windows\system32\svchost.exe
        2⤵
          PID:368
          • C:\Windows\SysWOW64\WerFault.exe
            C:\Windows\SysWOW64\WerFault.exe -u -p 368 -s 212
            3⤵
            • Program crash
            PID:392
        • C:\Program Files (x86)\Internet Explorer\iexplore.exe
          "C:\Program Files (x86)\Internet Explorer\iexplore.exe"
          2⤵
          • System Location Discovery: System Language Discovery
          • Suspicious use of WriteProcessMemory
          PID:3676
          • C:\Program Files\Internet Explorer\IEXPLORE.EXE
            "C:\Program Files\Internet Explorer\IEXPLORE.EXE"
            3⤵
            • Modifies Internet Explorer settings
            PID:1080
        • C:\Users\Admin\AppData\Local\Temp\mesvtrxtuyrkxkbh.exe
          "C:\Users\Admin\AppData\Local\Temp\mesvtrxtuyrkxkbh.exe"
          2⤵
          • Executes dropped EXE
          • System Location Discovery: System Language Discovery
          • Suspicious use of AdjustPrivilegeToken
          PID:2008
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 2412 -ip 2412
        1⤵
          PID:740
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -pss -s 440 -p 368 -ip 368
          1⤵
            PID:568

          Network

          MITRE ATT&CK Enterprise v15

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\7423F88C7F265F0DEFC08EA88C3BDE45_AA1E8580D4EBC816148CE81268683776

            Filesize

            471B

            MD5

            0ada2095c461df5a751955aa41dd491e

            SHA1

            8366c54b31e1ddc8016aa22aab8c83f73c690810

            SHA256

            80cd542688ed3a45669b53243c3f4922d6eb21a34d8dfeebc6c101484d3bac09

            SHA512

            135991affe343d4358bb15a693effa7a6813d6715e555729d2aa04a98555e13fded55d3100a41a92a5beb57c68fbdacb199a3e66407944e37880b28d42d79e7c

          • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\7423F88C7F265F0DEFC08EA88C3BDE45_AA1E8580D4EBC816148CE81268683776

            Filesize

            404B

            MD5

            b5ba81567c28c8f1b17823a469bb7dc0

            SHA1

            5471fbd94f21a8bd866bf86fb6aa18b8dac9d529

            SHA256

            bea4f06daa356fcf2795f155b0d9d3a2a678dd90a0538687eb5afc8f170f6f53

            SHA512

            1632c60832ed3bb1b8d7c43a8a6fdfcfaf436d89d0699b2f5598fb000974bebea4ce2cc52747254864b37d391201eadb18b02862c0c6ffb806fed854345e0389

          • C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\0BHOTC3C\suggestions[1].en-US

            Filesize

            17KB

            MD5

            5a34cb996293fde2cb7a4ac89587393a

            SHA1

            3c96c993500690d1a77873cd62bc639b3a10653f

            SHA256

            c6a5377cbc07eece33790cfc70572e12c7a48ad8296be25c0cc805a1f384dbad

            SHA512

            e1b7d0107733f81937415104e70f68b1be6fd0ca65dccf4ff72637943d44278d3a77f704aedff59d2dbc0d56a609b2590c8ec0dd6bc48ab30f1dad0c07a0a3ee

          • C:\Users\Admin\AppData\Local\Temp\mesvtrxtuyrkxkbh.exe

            Filesize

            95KB

            MD5

            b481e709f45d3e9dbb44338c5fcb8b33

            SHA1

            addbce0b429a93b7c78b335bd527dbc31bbb7036

            SHA256

            cc935886c742fb4a4fd6e9c402c89f8fd3351a678ea27b3ea09be8bedc5a6a5f

            SHA512

            ea3c9811ed7af7278f6bccacf1c45edc9e86781c9e43b5b7e51231c97bbf442ea9a26e7661148e1331a93b0d68e208a91f603b914f8d351ff35304d3f12e61d3

          • memory/1496-5-0x0000000000910000-0x0000000000911000-memory.dmp

            Filesize

            4KB

          • memory/1496-19-0x0000000000400000-0x000000000043A0B8-memory.dmp

            Filesize

            232KB

          • memory/1496-1-0x0000000000400000-0x000000000043B000-memory.dmp

            Filesize

            236KB

          • memory/1496-34-0x0000000000400000-0x000000000043B000-memory.dmp

            Filesize

            236KB

          • memory/1496-10-0x0000000000400000-0x000000000043B000-memory.dmp

            Filesize

            236KB

          • memory/1496-11-0x0000000000400000-0x000000000043A0B8-memory.dmp

            Filesize

            232KB

          • memory/1496-13-0x0000000000400000-0x000000000043A0B8-memory.dmp

            Filesize

            232KB

          • memory/1496-17-0x00000000773B2000-0x00000000773B3000-memory.dmp

            Filesize

            4KB

          • memory/1496-18-0x0000000000400000-0x000000000043A0B8-memory.dmp

            Filesize

            232KB

          • memory/1496-0-0x0000000000400000-0x000000000043A0B8-memory.dmp

            Filesize

            232KB

          • memory/1496-20-0x00000000773B2000-0x00000000773B3000-memory.dmp

            Filesize

            4KB

          • memory/1496-6-0x0000000000400000-0x000000000043A0B8-memory.dmp

            Filesize

            232KB

          • memory/1496-4-0x0000000000900000-0x0000000000901000-memory.dmp

            Filesize

            4KB

          • memory/1496-2-0x0000000000400000-0x000000000043A0B8-memory.dmp

            Filesize

            232KB

          • memory/2008-35-0x0000000000400000-0x000000000043A0B8-memory.dmp

            Filesize

            232KB

          • memory/2008-38-0x0000000000400000-0x000000000043A0B8-memory.dmp

            Filesize

            232KB

          • memory/2008-39-0x0000000000400000-0x000000000043B000-memory.dmp

            Filesize

            236KB

          • memory/2412-8-0x0000000000390000-0x0000000000391000-memory.dmp

            Filesize

            4KB

          • memory/2412-9-0x0000000000370000-0x0000000000371000-memory.dmp

            Filesize

            4KB