Analysis

  • max time kernel
    150s
  • max time network
    149s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240221-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240221-enlocale:en-usos:windows10-2004-x64system
  • submitted
    25/02/2024, 06:27

General

  • Target

    a31bada21fe1534531c065bde9f789f8.exe

  • Size

    95KB

  • MD5

    a31bada21fe1534531c065bde9f789f8

  • SHA1

    8843e2a81e47c5666f1d3f1e531c9e591dea543e

  • SHA256

    4b0b477f3376a36b2f7939c30a568069c17a583224e69ffa63e21e748955acfe

  • SHA512

    525dc5d5f865f3d6aa7fca2613ea8925e40a76d4c889d2b3dc39de795fe40a3b46dbc1946f8d511ddf7d3fb0d1151547a4aa064a5187dc91e567458b9838aa73

  • SSDEEP

    1536:QY5lAPkj6ri16pxNeRaNAj0yf+/2rlYlS+oqxYxBzHS82G5E8k8jwaaHw7Koj4r3:KkjN1acMAj0dNHxYbS/GFk8jwaaHw7Kw

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 36 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\a31bada21fe1534531c065bde9f789f8.exe
    "C:\Users\Admin\AppData\Local\Temp\a31bada21fe1534531c065bde9f789f8.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:384
    • C:\Windows\SysWOW64\svchost.exe
      C:\Windows\system32\svchost.exe
      2⤵
        PID:1296
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 1296 -s 208
          3⤵
          • Program crash
          PID:4460
      • C:\Program Files (x86)\Internet Explorer\iexplore.exe
        "C:\Program Files (x86)\Internet Explorer\iexplore.exe"
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:1056
        • 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:1184
          • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
            "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:1184 CREDAT:17410 /prefetch:2
            4⤵
            • Modifies Internet Explorer settings
            • Suspicious use of SetWindowsHookEx
            PID:3692
          • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
            "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:1184 CREDAT:17416 /prefetch:2
            4⤵
            • Modifies Internet Explorer settings
            • Suspicious use of SetWindowsHookEx
            PID:1932
      • C:\Windows\SysWOW64\svchost.exe
        C:\Windows\system32\svchost.exe
        2⤵
          PID:4508
          • C:\Windows\SysWOW64\WerFault.exe
            C:\Windows\SysWOW64\WerFault.exe -u -p 4508 -s 212
            3⤵
            • Program crash
            PID:2504
        • C:\Program Files (x86)\Internet Explorer\iexplore.exe
          "C:\Program Files (x86)\Internet Explorer\iexplore.exe"
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:1748
          • C:\Program Files\Internet Explorer\IEXPLORE.EXE
            "C:\Program Files\Internet Explorer\IEXPLORE.EXE"
            3⤵
            • Modifies Internet Explorer settings
            PID:2680
        • C:\Users\Admin\AppData\Local\Temp\rlygiwglewpddwht.exe
          "C:\Users\Admin\AppData\Local\Temp\rlygiwglewpddwht.exe"
          2⤵
          • Executes dropped EXE
          • Suspicious use of AdjustPrivilegeToken
          PID:920
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -pss -s 416 -p 1296 -ip 1296
        1⤵
          PID:1640
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -pss -s 508 -p 4508 -ip 4508
          1⤵
            PID:3872

          Network

          MITRE ATT&CK Enterprise v15

          Replay Monitor

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          Downloads

          • C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\8LUH2ELP\suggestions[1].en-US

            Filesize

            17KB

            MD5

            5a34cb996293fde2cb7a4ac89587393a

            SHA1

            3c96c993500690d1a77873cd62bc639b3a10653f

            SHA256

            c6a5377cbc07eece33790cfc70572e12c7a48ad8296be25c0cc805a1f384dbad

            SHA512

            e1b7d0107733f81937415104e70f68b1be6fd0ca65dccf4ff72637943d44278d3a77f704aedff59d2dbc0d56a609b2590c8ec0dd6bc48ab30f1dad0c07a0a3ee

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

            Filesize

            95KB

            MD5

            a31bada21fe1534531c065bde9f789f8

            SHA1

            8843e2a81e47c5666f1d3f1e531c9e591dea543e

            SHA256

            4b0b477f3376a36b2f7939c30a568069c17a583224e69ffa63e21e748955acfe

            SHA512

            525dc5d5f865f3d6aa7fca2613ea8925e40a76d4c889d2b3dc39de795fe40a3b46dbc1946f8d511ddf7d3fb0d1151547a4aa064a5187dc91e567458b9838aa73

          • memory/384-18-0x0000000000400000-0x0000000000439458-memory.dmp

            Filesize

            229KB

          • memory/384-16-0x0000000000400000-0x0000000000439458-memory.dmp

            Filesize

            229KB

          • memory/384-2-0x0000000000400000-0x0000000000439458-memory.dmp

            Filesize

            229KB

          • memory/384-6-0x0000000000BA0000-0x0000000000BA1000-memory.dmp

            Filesize

            4KB

          • memory/384-7-0x00000000006F0000-0x00000000006F2000-memory.dmp

            Filesize

            8KB

          • memory/384-9-0x00000000775B2000-0x00000000775B3000-memory.dmp

            Filesize

            4KB

          • memory/384-1-0x0000000000432000-0x000000000043A000-memory.dmp

            Filesize

            32KB

          • memory/384-4-0x0000000000B90000-0x0000000000B91000-memory.dmp

            Filesize

            4KB

          • memory/384-12-0x0000000000400000-0x0000000000439458-memory.dmp

            Filesize

            229KB

          • memory/384-5-0x0000000000400000-0x0000000000439458-memory.dmp

            Filesize

            229KB

          • memory/384-0-0x0000000000400000-0x0000000000439458-memory.dmp

            Filesize

            229KB

          • memory/384-19-0x00000000775B2000-0x00000000775B3000-memory.dmp

            Filesize

            4KB

          • memory/920-33-0x0000000000400000-0x0000000000439458-memory.dmp

            Filesize

            229KB

          • memory/920-36-0x0000000000400000-0x0000000000439458-memory.dmp

            Filesize

            229KB

          • memory/920-37-0x0000000000400000-0x0000000000439458-memory.dmp

            Filesize

            229KB

          • memory/1296-10-0x0000000000DF0000-0x0000000000DF1000-memory.dmp

            Filesize

            4KB

          • memory/1296-11-0x0000000000DD0000-0x0000000000DD1000-memory.dmp

            Filesize

            4KB