Analysis

  • max time kernel
    150s
  • max time network
    48s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    24-11-2022 00:28

General

  • Target

    222ef1dc2bc2df6066b103fcc6cad965ddb021f8a373024189524b0d169ce909.exe

  • Size

    1.3MB

  • MD5

    2b586e4ba54ab2f732874e69f1f730c0

  • SHA1

    8bcc29f33ac664d489666fd71e0288abe4204193

  • SHA256

    222ef1dc2bc2df6066b103fcc6cad965ddb021f8a373024189524b0d169ce909

  • SHA512

    ec645247e4cc86db32f15412934df6d083c7dca898acfac79a41da194fa5b2a10b8e11e053a86134d56c4dc6eee241084fe9296127e1d2f7b5cf9e108e7add11

  • SSDEEP

    24576:6j7+XfFR8CZ/CvI3HmFZVbk+Zu4DO/cBx/fTwFk4w8Tmp54eGq6sncx/u+4c2ltC:6jSXf0aUsaXwk4HTmpNAsnM/u+UltHfa

Score
8/10

Malware Config

Signatures

  • Executes dropped EXE 3 IoCs
  • Deletes itself 1 IoCs
  • Loads dropped DLL 2 IoCs
  • Enumerates connected drives 3 TTPs 22 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • Drops file in Program Files directory 64 IoCs
  • Drops file in Windows directory 4 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Runs net.exe
  • Suspicious behavior: EnumeratesProcesses 43 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 45 IoCs

Processes

  • C:\Windows\Explorer.EXE
    C:\Windows\Explorer.EXE
    1⤵
      PID:1384
      • C:\Users\Admin\AppData\Local\Temp\222ef1dc2bc2df6066b103fcc6cad965ddb021f8a373024189524b0d169ce909.exe
        "C:\Users\Admin\AppData\Local\Temp\222ef1dc2bc2df6066b103fcc6cad965ddb021f8a373024189524b0d169ce909.exe"
        2⤵
        • Drops file in Windows directory
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of WriteProcessMemory
        PID:1692
        • C:\Windows\SysWOW64\net.exe
          net stop "Kingsoft AntiVirus Service"
          3⤵
          • Suspicious use of WriteProcessMemory
          PID:1644
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 stop "Kingsoft AntiVirus Service"
            4⤵
              PID:2004
          • C:\Windows\SysWOW64\cmd.exe
            cmd /c C:\Users\Admin\AppData\Local\Temp\$$a57E1.bat
            3⤵
            • Deletes itself
            • Loads dropped DLL
            • Suspicious use of WriteProcessMemory
            PID:1416
            • C:\Users\Admin\AppData\Local\Temp\222ef1dc2bc2df6066b103fcc6cad965ddb021f8a373024189524b0d169ce909.exe
              "C:\Users\Admin\AppData\Local\Temp\222ef1dc2bc2df6066b103fcc6cad965ddb021f8a373024189524b0d169ce909.exe"
              4⤵
              • Executes dropped EXE
              • Loads dropped DLL
              • Suspicious use of WriteProcessMemory
              PID:796
              • C:\Users\Admin\AppData\Local\Temp\B5_Uninst.exe
                C:\Users\Admin\AppData\Local\Temp\B5_Uninst.exe
                5⤵
                • Executes dropped EXE
                • Suspicious use of AdjustPrivilegeToken
                PID:564
          • C:\Windows\Logo1_.exe
            C:\Windows\Logo1_.exe
            3⤵
            • Executes dropped EXE
            • Enumerates connected drives
            • Drops file in Program Files directory
            • Drops file in Windows directory
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of WriteProcessMemory
            PID:1712
            • C:\Windows\SysWOW64\net.exe
              net stop "Kingsoft AntiVirus Service"
              4⤵
              • Suspicious use of WriteProcessMemory
              PID:1996
              • C:\Windows\SysWOW64\net1.exe
                C:\Windows\system32\net1 stop "Kingsoft AntiVirus Service"
                5⤵
                  PID:1172
              • C:\Windows\SysWOW64\net.exe
                net stop "Kingsoft AntiVirus Service"
                4⤵
                • Suspicious use of WriteProcessMemory
                PID:556
                • C:\Windows\SysWOW64\net1.exe
                  C:\Windows\system32\net1 stop "Kingsoft AntiVirus Service"
                  5⤵
                    PID:1812

          Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

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          Downloads

          • C:\Users\Admin\AppData\Local\Temp\$$a57E1.bat

            Filesize

            722B

            MD5

            35cf91d87c6180a368129f1be70e6e02

            SHA1

            cc4855552262340ccf9f28ba4487a7f16bb02d81

            SHA256

            a77cf716d2199c329900f15c013d870307d1f4329db940aacdce53c133dd8814

            SHA512

            98bd7ed174ec69d992c5607af5407c3f1b3480bfe2657c35e0de6cbe8403619bcf2b8d6e5766a3afc31fb3f54319d5fa44a9776d6a625e9164e55c94b08ff18b

          • C:\Users\Admin\AppData\Local\Temp\222ef1dc2bc2df6066b103fcc6cad965ddb021f8a373024189524b0d169ce909.exe

            Filesize

            1.3MB

            MD5

            9e4c8baf81435998229bcd0b8207ea6f

            SHA1

            201b8c988434fd2170e62eab4b061287de7a93f1

            SHA256

            43e4b4095b82ab5aba8975986221ab35f27b42926f0fb3763f6c122e32263bec

            SHA512

            22c5d6eda55479797ea71ac0d4e86ebf9d64e1551f82abbda19cfc9b5cf77d43b24985f580f233eb575b154a6f26c6049e3b8c0027cc4548319223f4ef87f99b

          • C:\Users\Admin\AppData\Local\Temp\222ef1dc2bc2df6066b103fcc6cad965ddb021f8a373024189524b0d169ce909.exe.exe

            Filesize

            1.3MB

            MD5

            9e4c8baf81435998229bcd0b8207ea6f

            SHA1

            201b8c988434fd2170e62eab4b061287de7a93f1

            SHA256

            43e4b4095b82ab5aba8975986221ab35f27b42926f0fb3763f6c122e32263bec

            SHA512

            22c5d6eda55479797ea71ac0d4e86ebf9d64e1551f82abbda19cfc9b5cf77d43b24985f580f233eb575b154a6f26c6049e3b8c0027cc4548319223f4ef87f99b

          • C:\Users\Admin\AppData\Local\Temp\B5_Uninst.exe

            Filesize

            1.1MB

            MD5

            3216880b01ede7be8ebc89e379223212

            SHA1

            d59d1f0b3994897354c054960a15d3c4d1e1d472

            SHA256

            7d106d9ac7288d186fd1960ebd1add3eb973c0f7bf8dd393e5fe38af4216c2d1

            SHA512

            aa135f889cce0ec6ad2da402adf21f058428566b075e8e486b18306327676d5f01cb5629c83c59f2cc124df4e10932d6c2be05584d29d22e37fb3cb668e0ee22

          • C:\Windows\Logo1_.exe

            Filesize

            33KB

            MD5

            5e98b79c3f45bf7e27810994a0c732a6

            SHA1

            8df5bd2705f9b25767380029ccc2c5ba1dce947a

            SHA256

            d20db8d04a27b89cf54309a4eecb307cd5ff7534830237708969376758a3443c

            SHA512

            c7554479c1d0787889d63632db9f633990a4316db5ad3ce059e42f2a9f345dac5eaf4e4f8f9fb48baeda903052cf242e14027456b431e5237b41ac78da1e3810

          • C:\Windows\Logo1_.exe

            Filesize

            33KB

            MD5

            5e98b79c3f45bf7e27810994a0c732a6

            SHA1

            8df5bd2705f9b25767380029ccc2c5ba1dce947a

            SHA256

            d20db8d04a27b89cf54309a4eecb307cd5ff7534830237708969376758a3443c

            SHA512

            c7554479c1d0787889d63632db9f633990a4316db5ad3ce059e42f2a9f345dac5eaf4e4f8f9fb48baeda903052cf242e14027456b431e5237b41ac78da1e3810

          • C:\Windows\rundl132.exe

            Filesize

            33KB

            MD5

            5e98b79c3f45bf7e27810994a0c732a6

            SHA1

            8df5bd2705f9b25767380029ccc2c5ba1dce947a

            SHA256

            d20db8d04a27b89cf54309a4eecb307cd5ff7534830237708969376758a3443c

            SHA512

            c7554479c1d0787889d63632db9f633990a4316db5ad3ce059e42f2a9f345dac5eaf4e4f8f9fb48baeda903052cf242e14027456b431e5237b41ac78da1e3810

          • \Users\Admin\AppData\Local\Temp\222ef1dc2bc2df6066b103fcc6cad965ddb021f8a373024189524b0d169ce909.exe

            Filesize

            1.3MB

            MD5

            9e4c8baf81435998229bcd0b8207ea6f

            SHA1

            201b8c988434fd2170e62eab4b061287de7a93f1

            SHA256

            43e4b4095b82ab5aba8975986221ab35f27b42926f0fb3763f6c122e32263bec

            SHA512

            22c5d6eda55479797ea71ac0d4e86ebf9d64e1551f82abbda19cfc9b5cf77d43b24985f580f233eb575b154a6f26c6049e3b8c0027cc4548319223f4ef87f99b

          • \Users\Admin\AppData\Local\Temp\B5_Uninst.exe

            Filesize

            1.1MB

            MD5

            3216880b01ede7be8ebc89e379223212

            SHA1

            d59d1f0b3994897354c054960a15d3c4d1e1d472

            SHA256

            7d106d9ac7288d186fd1960ebd1add3eb973c0f7bf8dd393e5fe38af4216c2d1

            SHA512

            aa135f889cce0ec6ad2da402adf21f058428566b075e8e486b18306327676d5f01cb5629c83c59f2cc124df4e10932d6c2be05584d29d22e37fb3cb668e0ee22

          • memory/556-71-0x0000000000000000-mapping.dmp

          • memory/564-74-0x0000000000000000-mapping.dmp

          • memory/564-77-0x0000000075921000-0x0000000075923000-memory.dmp

            Filesize

            8KB

          • memory/796-68-0x0000000000000000-mapping.dmp

          • memory/1172-65-0x0000000000000000-mapping.dmp

          • memory/1416-57-0x0000000000000000-mapping.dmp

          • memory/1644-54-0x0000000000000000-mapping.dmp

          • memory/1692-60-0x0000000000400000-0x0000000000440000-memory.dmp

            Filesize

            256KB

          • memory/1692-56-0x0000000000400000-0x0000000000440000-memory.dmp

            Filesize

            256KB

          • memory/1712-66-0x0000000000400000-0x0000000000440000-memory.dmp

            Filesize

            256KB

          • memory/1712-73-0x0000000000400000-0x0000000000440000-memory.dmp

            Filesize

            256KB

          • memory/1712-58-0x0000000000000000-mapping.dmp

          • memory/1812-76-0x0000000000000000-mapping.dmp

          • memory/1996-62-0x0000000000000000-mapping.dmp

          • memory/2004-55-0x0000000000000000-mapping.dmp