Analysis

  • max time kernel
    150s
  • max time network
    152s
  • platform
    windows7_x64
  • resource
    win7-en-20211208
  • submitted
    11-01-2022 07:55

General

  • Target

    93abd5fd5684804d71380d38d29229c4.exe

  • Size

    93KB

  • MD5

    93abd5fd5684804d71380d38d29229c4

  • SHA1

    37fc6c58c910d7ed3ad47d25698f52f5a8f7aeb9

  • SHA256

    13f740ded52b5779a1087e1d7a333b622ad3ed80a962e4211e76adf42cc0765b

  • SHA512

    036f32739370925d2362aa28aaf543b90e2facb7859b2ca0c46c59bcc749ec74f6823c70a20b50fd580a9ec77846c58a946ae933e404fc603b689d30bf095b0a

Malware Config

Extracted

Family

njrat

Version

0.7d

Botnet

HacKed

C2

Ni50Y3Aubmdyb2suaW8Strik:MTk5MzA=

Mutex

8ed939d5d78ac3a222ff6581695b4837

Attributes
  • reg_key

    8ed939d5d78ac3a222ff6581695b4837

  • splitter

    |'|'|

Signatures

  • njRAT/Bladabindi

    Widely used RAT written in .NET.

  • suricata: ET MALWARE Generic njRAT/Bladabindi CnC Activity (ll)

    suricata: ET MALWARE Generic njRAT/Bladabindi CnC Activity (ll)

  • Disables Task Manager via registry modification
  • Executes dropped EXE 3 IoCs
  • Modifies Windows Firewall 1 TTPs
  • Deletes itself 1 IoCs
  • Drops startup file 6 IoCs
  • Loads dropped DLL 8 IoCs
  • Drops autorun.inf file 1 TTPs

    Malware can abuse Windows Autorun to spread further via attached volumes.

  • Enumerates physical storage devices 1 TTPs

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

  • Creates scheduled task(s) 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 36 IoCs
  • Suspicious use of WriteProcessMemory 46 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\93abd5fd5684804d71380d38d29229c4.exe
    "C:\Users\Admin\AppData\Local\Temp\93abd5fd5684804d71380d38d29229c4.exe"
    1⤵
    • Drops startup file
    • Loads dropped DLL
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1320
    • C:\Windows\SysWOW64\netsh.exe
      netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\93abd5fd5684804d71380d38d29229c4.exe" "93abd5fd5684804d71380d38d29229c4.exe" ENABLE
      2⤵
        PID:268
      • C:\Windows\SysWOW64\netsh.exe
        netsh firewall delete allowedprogram "C:\Users\Admin\AppData\Local\Temp\93abd5fd5684804d71380d38d29229c4.exe"
        2⤵
          PID:784
        • C:\Windows\SysWOW64\netsh.exe
          netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\93abd5fd5684804d71380d38d29229c4.exe" "93abd5fd5684804d71380d38d29229c4.exe" ENABLE
          2⤵
            PID:840
          • C:\Users\Admin\AppData\Roaming\Microsoft\svchost.exe
            "C:\Users\Admin\AppData\Roaming\Microsoft\svchost.exe"
            2⤵
            • Executes dropped EXE
            • Deletes itself
            • Drops startup file
            • Suspicious behavior: GetForegroundWindowSpam
            • Suspicious use of AdjustPrivilegeToken
            • Suspicious use of WriteProcessMemory
            PID:1212
            • C:\Windows\SysWOW64\netsh.exe
              netsh firewall add allowedprogram "C:\Users\Admin\AppData\Roaming\Microsoft\svchost.exe" "svchost.exe" ENABLE
              3⤵
                PID:1544
              • C:\Windows\SysWOW64\netsh.exe
                netsh firewall delete allowedprogram "C:\Users\Admin\AppData\Roaming\Microsoft\svchost.exe"
                3⤵
                  PID:1752
                • C:\Windows\SysWOW64\netsh.exe
                  netsh firewall add allowedprogram "C:\Users\Admin\AppData\Roaming\Microsoft\svchost.exe" "svchost.exe" ENABLE
                  3⤵
                    PID:868
                  • C:\Windows\SysWOW64\schtasks.exe
                    schtasks /create /sc minute /mo 1 /tn StUpdate /tr C:\Users\Admin\AppData\Local\Temp/StUpdate.exe
                    3⤵
                    • Creates scheduled task(s)
                    PID:1636
              • C:\Windows\system32\taskeng.exe
                taskeng.exe {2881FA43-DE35-4459-B420-8CA174F1CAF9} S-1-5-21-2329389628-4064185017-3901522362-1000:QSKGHMYQ\Admin:Interactive:[1]
                1⤵
                • Suspicious use of WriteProcessMemory
                PID:820
                • C:\Users\Admin\AppData\Local\Temp\StUpdate.exe
                  C:\Users\Admin\AppData\Local\Temp/StUpdate.exe
                  2⤵
                  • Executes dropped EXE
                  • Loads dropped DLL
                  PID:1568
                • C:\Users\Admin\AppData\Local\Temp\StUpdate.exe
                  C:\Users\Admin\AppData\Local\Temp/StUpdate.exe
                  2⤵
                  • Executes dropped EXE
                  • Loads dropped DLL
                  PID:1928

              Network

              MITRE ATT&CK Enterprise v6

              Replay Monitor

              Loading Replay Monitor...

              Downloads

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

                MD5

                93abd5fd5684804d71380d38d29229c4

                SHA1

                37fc6c58c910d7ed3ad47d25698f52f5a8f7aeb9

                SHA256

                13f740ded52b5779a1087e1d7a333b622ad3ed80a962e4211e76adf42cc0765b

                SHA512

                036f32739370925d2362aa28aaf543b90e2facb7859b2ca0c46c59bcc749ec74f6823c70a20b50fd580a9ec77846c58a946ae933e404fc603b689d30bf095b0a

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

                MD5

                93abd5fd5684804d71380d38d29229c4

                SHA1

                37fc6c58c910d7ed3ad47d25698f52f5a8f7aeb9

                SHA256

                13f740ded52b5779a1087e1d7a333b622ad3ed80a962e4211e76adf42cc0765b

                SHA512

                036f32739370925d2362aa28aaf543b90e2facb7859b2ca0c46c59bcc749ec74f6823c70a20b50fd580a9ec77846c58a946ae933e404fc603b689d30bf095b0a

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

                MD5

                93abd5fd5684804d71380d38d29229c4

                SHA1

                37fc6c58c910d7ed3ad47d25698f52f5a8f7aeb9

                SHA256

                13f740ded52b5779a1087e1d7a333b622ad3ed80a962e4211e76adf42cc0765b

                SHA512

                036f32739370925d2362aa28aaf543b90e2facb7859b2ca0c46c59bcc749ec74f6823c70a20b50fd580a9ec77846c58a946ae933e404fc603b689d30bf095b0a

              • C:\Users\Admin\AppData\Local\Temp\melt.txt

                MD5

                a3915e48a30828a0186a05b0856e31d5

                SHA1

                6e90c35bfa1419e0fe69115d3988397712274876

                SHA256

                55f32f64f47be2498f13bd05d4a72f14589a9de37e069359fa8de22688d7a0ed

                SHA512

                f14a462dc1752fd1a6c4adb47337662024152230c5da7975b833f4d99d000bbc1fa32f1d41319b040228b968af8e9f5fd7ea530fb528dffdbf9661f7ab7fbfbc

              • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\8ed939d5d78ac3a222ff6581695b4837Windows Update.exe

                MD5

                93abd5fd5684804d71380d38d29229c4

                SHA1

                37fc6c58c910d7ed3ad47d25698f52f5a8f7aeb9

                SHA256

                13f740ded52b5779a1087e1d7a333b622ad3ed80a962e4211e76adf42cc0765b

                SHA512

                036f32739370925d2362aa28aaf543b90e2facb7859b2ca0c46c59bcc749ec74f6823c70a20b50fd580a9ec77846c58a946ae933e404fc603b689d30bf095b0a

              • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Microsoft Corporation.exe

                MD5

                93abd5fd5684804d71380d38d29229c4

                SHA1

                37fc6c58c910d7ed3ad47d25698f52f5a8f7aeb9

                SHA256

                13f740ded52b5779a1087e1d7a333b622ad3ed80a962e4211e76adf42cc0765b

                SHA512

                036f32739370925d2362aa28aaf543b90e2facb7859b2ca0c46c59bcc749ec74f6823c70a20b50fd580a9ec77846c58a946ae933e404fc603b689d30bf095b0a

              • C:\Users\Admin\AppData\Roaming\Microsoft\svchost.exe

                MD5

                93abd5fd5684804d71380d38d29229c4

                SHA1

                37fc6c58c910d7ed3ad47d25698f52f5a8f7aeb9

                SHA256

                13f740ded52b5779a1087e1d7a333b622ad3ed80a962e4211e76adf42cc0765b

                SHA512

                036f32739370925d2362aa28aaf543b90e2facb7859b2ca0c46c59bcc749ec74f6823c70a20b50fd580a9ec77846c58a946ae933e404fc603b689d30bf095b0a

              • C:\Users\Admin\AppData\Roaming\Microsoft\svchost.exe

                MD5

                93abd5fd5684804d71380d38d29229c4

                SHA1

                37fc6c58c910d7ed3ad47d25698f52f5a8f7aeb9

                SHA256

                13f740ded52b5779a1087e1d7a333b622ad3ed80a962e4211e76adf42cc0765b

                SHA512

                036f32739370925d2362aa28aaf543b90e2facb7859b2ca0c46c59bcc749ec74f6823c70a20b50fd580a9ec77846c58a946ae933e404fc603b689d30bf095b0a

              • C:\Users\Admin\AppData\Roaming\app

                MD5

                24e9e7d7eea4de90c8fc67ae1145abf2

                SHA1

                dd9bb46ccc6340ca892cf17ebe32b9bdbadee2d1

                SHA256

                bd6c1d15579254e8879ada07376f93cb2e959f45670374892fde2efaf4194f6c

                SHA512

                5572afd61c7ba666515a987f23ad0a05ab753bdc28cfa492adb30200207427a4a38699d3b7981e0750414775a4ce72a209511951d38a8673c709b08774fca01f

              • C:\Users\Admin\AppData\Roaming\app

                MD5

                24e9e7d7eea4de90c8fc67ae1145abf2

                SHA1

                dd9bb46ccc6340ca892cf17ebe32b9bdbadee2d1

                SHA256

                bd6c1d15579254e8879ada07376f93cb2e959f45670374892fde2efaf4194f6c

                SHA512

                5572afd61c7ba666515a987f23ad0a05ab753bdc28cfa492adb30200207427a4a38699d3b7981e0750414775a4ce72a209511951d38a8673c709b08774fca01f

              • C:\Users\Admin\AppData\Roaming\app

                MD5

                24e9e7d7eea4de90c8fc67ae1145abf2

                SHA1

                dd9bb46ccc6340ca892cf17ebe32b9bdbadee2d1

                SHA256

                bd6c1d15579254e8879ada07376f93cb2e959f45670374892fde2efaf4194f6c

                SHA512

                5572afd61c7ba666515a987f23ad0a05ab753bdc28cfa492adb30200207427a4a38699d3b7981e0750414775a4ce72a209511951d38a8673c709b08774fca01f

              • \Users\Admin\AppData\Local\Temp\StUpdate.exe

                MD5

                93abd5fd5684804d71380d38d29229c4

                SHA1

                37fc6c58c910d7ed3ad47d25698f52f5a8f7aeb9

                SHA256

                13f740ded52b5779a1087e1d7a333b622ad3ed80a962e4211e76adf42cc0765b

                SHA512

                036f32739370925d2362aa28aaf543b90e2facb7859b2ca0c46c59bcc749ec74f6823c70a20b50fd580a9ec77846c58a946ae933e404fc603b689d30bf095b0a

              • \Users\Admin\AppData\Local\Temp\StUpdate.exe

                MD5

                93abd5fd5684804d71380d38d29229c4

                SHA1

                37fc6c58c910d7ed3ad47d25698f52f5a8f7aeb9

                SHA256

                13f740ded52b5779a1087e1d7a333b622ad3ed80a962e4211e76adf42cc0765b

                SHA512

                036f32739370925d2362aa28aaf543b90e2facb7859b2ca0c46c59bcc749ec74f6823c70a20b50fd580a9ec77846c58a946ae933e404fc603b689d30bf095b0a

              • \Users\Admin\AppData\Local\Temp\StUpdate.exe

                MD5

                93abd5fd5684804d71380d38d29229c4

                SHA1

                37fc6c58c910d7ed3ad47d25698f52f5a8f7aeb9

                SHA256

                13f740ded52b5779a1087e1d7a333b622ad3ed80a962e4211e76adf42cc0765b

                SHA512

                036f32739370925d2362aa28aaf543b90e2facb7859b2ca0c46c59bcc749ec74f6823c70a20b50fd580a9ec77846c58a946ae933e404fc603b689d30bf095b0a

              • \Users\Admin\AppData\Local\Temp\StUpdate.exe

                MD5

                93abd5fd5684804d71380d38d29229c4

                SHA1

                37fc6c58c910d7ed3ad47d25698f52f5a8f7aeb9

                SHA256

                13f740ded52b5779a1087e1d7a333b622ad3ed80a962e4211e76adf42cc0765b

                SHA512

                036f32739370925d2362aa28aaf543b90e2facb7859b2ca0c46c59bcc749ec74f6823c70a20b50fd580a9ec77846c58a946ae933e404fc603b689d30bf095b0a

              • \Users\Admin\AppData\Local\Temp\StUpdate.exe

                MD5

                93abd5fd5684804d71380d38d29229c4

                SHA1

                37fc6c58c910d7ed3ad47d25698f52f5a8f7aeb9

                SHA256

                13f740ded52b5779a1087e1d7a333b622ad3ed80a962e4211e76adf42cc0765b

                SHA512

                036f32739370925d2362aa28aaf543b90e2facb7859b2ca0c46c59bcc749ec74f6823c70a20b50fd580a9ec77846c58a946ae933e404fc603b689d30bf095b0a

              • \Users\Admin\AppData\Local\Temp\StUpdate.exe

                MD5

                93abd5fd5684804d71380d38d29229c4

                SHA1

                37fc6c58c910d7ed3ad47d25698f52f5a8f7aeb9

                SHA256

                13f740ded52b5779a1087e1d7a333b622ad3ed80a962e4211e76adf42cc0765b

                SHA512

                036f32739370925d2362aa28aaf543b90e2facb7859b2ca0c46c59bcc749ec74f6823c70a20b50fd580a9ec77846c58a946ae933e404fc603b689d30bf095b0a

              • \Users\Admin\AppData\Roaming\Microsoft\svchost.exe

                MD5

                93abd5fd5684804d71380d38d29229c4

                SHA1

                37fc6c58c910d7ed3ad47d25698f52f5a8f7aeb9

                SHA256

                13f740ded52b5779a1087e1d7a333b622ad3ed80a962e4211e76adf42cc0765b

                SHA512

                036f32739370925d2362aa28aaf543b90e2facb7859b2ca0c46c59bcc749ec74f6823c70a20b50fd580a9ec77846c58a946ae933e404fc603b689d30bf095b0a

              • \Users\Admin\AppData\Roaming\Microsoft\svchost.exe

                MD5

                93abd5fd5684804d71380d38d29229c4

                SHA1

                37fc6c58c910d7ed3ad47d25698f52f5a8f7aeb9

                SHA256

                13f740ded52b5779a1087e1d7a333b622ad3ed80a962e4211e76adf42cc0765b

                SHA512

                036f32739370925d2362aa28aaf543b90e2facb7859b2ca0c46c59bcc749ec74f6823c70a20b50fd580a9ec77846c58a946ae933e404fc603b689d30bf095b0a

              • memory/268-57-0x0000000000000000-mapping.dmp

              • memory/784-59-0x0000000000000000-mapping.dmp

              • memory/840-60-0x0000000000000000-mapping.dmp

              • memory/868-76-0x0000000000000000-mapping.dmp

              • memory/1212-65-0x0000000000000000-mapping.dmp

              • memory/1212-69-0x0000000000600000-0x0000000000601000-memory.dmp

                Filesize

                4KB

              • memory/1320-56-0x00000000004C0000-0x00000000004C1000-memory.dmp

                Filesize

                4KB

              • memory/1320-55-0x0000000074B21000-0x0000000074B23000-memory.dmp

                Filesize

                8KB

              • memory/1544-71-0x0000000000000000-mapping.dmp

              • memory/1568-89-0x00000000006D0000-0x00000000006D1000-memory.dmp

                Filesize

                4KB

              • memory/1568-82-0x0000000000000000-mapping.dmp

              • memory/1636-78-0x0000000000000000-mapping.dmp

              • memory/1752-75-0x0000000000000000-mapping.dmp

              • memory/1928-90-0x0000000000000000-mapping.dmp

              • memory/1928-96-0x0000000000890000-0x0000000000891000-memory.dmp

                Filesize

                4KB