Analysis

  • max time kernel
    149s
  • max time network
    153s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231222-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231222-enlocale:en-usos:windows10-2004-x64system
  • submitted
    05-01-2024 02:51

General

  • Target

    4293b792ab131741da2eda5f6dde7c87.exe

  • Size

    94KB

  • MD5

    4293b792ab131741da2eda5f6dde7c87

  • SHA1

    ae19da32badbaf720e7339c56e86654c579ed6a6

  • SHA256

    c250a4606ea37c51fa0b4afb1739597014abfe04424cbabd502b1a6382758635

  • SHA512

    af27032eaf3d0badb3a386df760c1f260c540307858eec9301fdbcb4748ec2602367c3f4bffe5de9767651c15e821a0069baf29c669b39f3823232c5499cf6af

  • SSDEEP

    1536:xQ+if/nwvn32SVo6CFDR/SwSz+e2dAS3F4ozjlFBN9WG5E8k8jwaaHw7Koj4rrw3:xQ5fqGko6CFgQeGV4UlFBNAGFk8jwaa9

Malware Config

Signatures

  • Ramnit

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

  • 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
  • Modifies Internet Explorer settings 1 TTPs 38 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\4293b792ab131741da2eda5f6dde7c87.exe
    "C:\Users\Admin\AppData\Local\Temp\4293b792ab131741da2eda5f6dde7c87.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4512
    • C:\Windows\SysWOW64\svchost.exe
      C:\Windows\system32\svchost.exe
      2⤵
        PID:4908
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 4908 -s 204
          3⤵
          • Program crash
          PID:2024
      • C:\Program Files (x86)\Internet Explorer\iexplore.exe
        "C:\Program Files (x86)\Internet Explorer\iexplore.exe"
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:3848
        • 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:5112
          • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
            "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:5112 CREDAT:17410 /prefetch:2
            4⤵
            • Modifies Internet Explorer settings
            • Suspicious use of SetWindowsHookEx
            PID:4500
          • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
            "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:5112 CREDAT:17416 /prefetch:2
            4⤵
            • Modifies Internet Explorer settings
            • Suspicious use of SetWindowsHookEx
            PID:1380
      • C:\Windows\SysWOW64\svchost.exe
        C:\Windows\system32\svchost.exe
        2⤵
          PID:4456
          • C:\Windows\SysWOW64\WerFault.exe
            C:\Windows\SysWOW64\WerFault.exe -u -p 4456 -s 208
            3⤵
            • Program crash
            PID:2368
        • C:\Program Files (x86)\Internet Explorer\iexplore.exe
          "C:\Program Files (x86)\Internet Explorer\iexplore.exe"
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:2128
          • C:\Program Files\Internet Explorer\IEXPLORE.EXE
            "C:\Program Files\Internet Explorer\IEXPLORE.EXE"
            3⤵
            • Modifies Internet Explorer settings
            PID:3992
        • C:\Users\Admin\AppData\Local\Temp\qorbeywwubbwjyxn.exe
          "C:\Users\Admin\AppData\Local\Temp\qorbeywwubbwjyxn.exe"
          2⤵
          • Executes dropped EXE
          • Suspicious use of AdjustPrivilegeToken
          PID:2936
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -pss -s 424 -p 4908 -ip 4908
        1⤵
          PID:672
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -pss -s 572 -p 4456 -ip 4456
          1⤵
            PID:3264

          Network

          MITRE ATT&CK Matrix ATT&CK v13

          Defense Evasion

          Modify Registry

          1
          T1112

          Discovery

          Query Registry

          1
          T1012

          System Information Discovery

          2
          T1082

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • C:\Users\Admin\AppData\Local\Microsoft\Internet Explorer\VersionManager\verEC92.tmp
            Filesize

            15KB

            MD5

            1a545d0052b581fbb2ab4c52133846bc

            SHA1

            62f3266a9b9925cd6d98658b92adec673cbe3dd3

            SHA256

            557472aeaebf4c1c800b9df14c190f66d62cbabb011300dbedde2dcddd27a6c1

            SHA512

            bd326d111589d87cd6d019378ec725ac9ac7ad4c36f22453941f7d52f90b747ede4783a83dfff6cae1b3bb46690ad49cffa77f2afda019b22863ac485b406e8d

          • C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\R977VUU4\suggestions[1].en-US
            Filesize

            17KB

            MD5

            5a34cb996293fde2cb7a4ac89587393a

            SHA1

            3c96c993500690d1a77873cd62bc639b3a10653f

            SHA256

            c6a5377cbc07eece33790cfc70572e12c7a48ad8296be25c0cc805a1f384dbad

            SHA512

            e1b7d0107733f81937415104e70f68b1be6fd0ca65dccf4ff72637943d44278d3a77f704aedff59d2dbc0d56a609b2590c8ec0dd6bc48ab30f1dad0c07a0a3ee

          • C:\Users\Admin\AppData\Local\Temp\qorbeywwubbwjyxn.exe
            Filesize

            94KB

            MD5

            4293b792ab131741da2eda5f6dde7c87

            SHA1

            ae19da32badbaf720e7339c56e86654c579ed6a6

            SHA256

            c250a4606ea37c51fa0b4afb1739597014abfe04424cbabd502b1a6382758635

            SHA512

            af27032eaf3d0badb3a386df760c1f260c540307858eec9301fdbcb4748ec2602367c3f4bffe5de9767651c15e821a0069baf29c669b39f3823232c5499cf6af

          • memory/2936-38-0x0000000000400000-0x0000000000439AE8-memory.dmp
            Filesize

            230KB

          • memory/2936-36-0x0000000000670000-0x0000000000672000-memory.dmp
            Filesize

            8KB

          • memory/4512-5-0x0000000000A10000-0x0000000000A11000-memory.dmp
            Filesize

            4KB

          • memory/4512-10-0x0000000000400000-0x0000000000439AE8-memory.dmp
            Filesize

            230KB

          • memory/4512-14-0x0000000000400000-0x0000000000439AE8-memory.dmp
            Filesize

            230KB

          • memory/4512-16-0x0000000000400000-0x0000000000439AE8-memory.dmp
            Filesize

            230KB

          • memory/4512-17-0x00000000775F2000-0x00000000775F3000-memory.dmp
            Filesize

            4KB

          • memory/4512-7-0x00000000775F2000-0x00000000775F3000-memory.dmp
            Filesize

            4KB

          • memory/4512-0-0x0000000000400000-0x0000000000439AE8-memory.dmp
            Filesize

            230KB

          • memory/4512-4-0x0000000000A00000-0x0000000000A01000-memory.dmp
            Filesize

            4KB

          • memory/4512-2-0x0000000000610000-0x0000000000612000-memory.dmp
            Filesize

            8KB

          • memory/4512-1-0x0000000000400000-0x0000000000439AE8-memory.dmp
            Filesize

            230KB

          • memory/4908-8-0x0000000000EE0000-0x0000000000EE1000-memory.dmp
            Filesize

            4KB

          • memory/4908-9-0x0000000000F00000-0x0000000000F01000-memory.dmp
            Filesize

            4KB