Analysis

  • max time kernel
    4294213s
  • max time network
    161s
  • platform
    windows7_x64
  • resource
    win7-20220223-en
  • submitted
    09-03-2022 17:48

General

  • Target

    1f67b271e2ab95fd8889b0f95752e17d4b489ea8bd51fff3e23d9e48e8b54c17.exe

  • Size

    3.2MB

  • MD5

    37185cf06ca09e939d74fa52692cd2bb

  • SHA1

    28d3d5093cb8e9a4cb41e27c345a755d171c4c91

  • SHA256

    1f67b271e2ab95fd8889b0f95752e17d4b489ea8bd51fff3e23d9e48e8b54c17

  • SHA512

    4a68a39f7c8c978f9762a0f6347002572e438503b202696c499eedcb60db6bf5bdc260ec6471db4a608a51c97349aa18dd6cadf84487e21e9f10c2043e54f1a2

Malware Config

Extracted

Family

njrat

Version

im523

Botnet

hacker

C2

0.tcp.ngrok.io:15460

Mutex

e16fcebad3ce9184f9d944ae59ba0549

Attributes
  • reg_key

    e16fcebad3ce9184f9d944ae59ba0549

  • 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)

  • Executes dropped EXE 3 IoCs
  • Modifies Windows Firewall 1 TTPs
  • Drops startup file 2 IoCs
  • Loads dropped DLL 10 IoCs
  • Adds Run key to start application 2 TTPs 4 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.

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 33 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 28 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\1f67b271e2ab95fd8889b0f95752e17d4b489ea8bd51fff3e23d9e48e8b54c17.exe
    "C:\Users\Admin\AppData\Local\Temp\1f67b271e2ab95fd8889b0f95752e17d4b489ea8bd51fff3e23d9e48e8b54c17.exe"
    1⤵
    • Loads dropped DLL
    • Adds Run key to start application
    • Suspicious use of WriteProcessMemory
    PID:1752
    • C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\CDS.exe
      C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\CDS.exe
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:1680
      • C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\crypted.exe
        "C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\crypted.exe"
        3⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • Suspicious use of WriteProcessMemory
        PID:1948
        • C:\Users\Admin\AppData\Local\Temp\svchost.exe
          "C:\Users\Admin\AppData\Local\Temp\svchost.exe"
          4⤵
          • Executes dropped EXE
          • Drops startup file
          • Loads dropped DLL
          • Adds Run key to start application
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious behavior: GetForegroundWindowSpam
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of WriteProcessMemory
          PID:1548
          • C:\Windows\SysWOW64\netsh.exe
            netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\svchost.exe" "svchost.exe" ENABLE
            5⤵
              PID:1524

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\630_10.png

      MD5

      340b294efc691d1b20c64175d565ebc7

      SHA1

      81cb9649bd1c9a62ae79e781818fc24d15c29ce7

      SHA256

      72566894059452101ea836bbff9ede5069141eeb52022ab55baa24e1666825c9

      SHA512

      1395a8e175c63a1a1ff459a9dac437156c74299272e020e7e078a087969251a8534f17244a529acbc1b6800a97d4c0abfa3c88f6fcb88423f56dfaae9b49fc3d

    • C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\CDS.cdd

      MD5

      3e7ecaeb51c2812d13b07ec852d74aaf

      SHA1

      e9bdab93596ffb0f7f8c65243c579180939acb26

      SHA256

      e7e942993864e8b18780ef10a415f7b93924c6378248c52f0c96895735222b96

      SHA512

      635cd5173b595f1905af9eeea65037601cf8496d519c506b6d082662d438c26a1bfe653eaf6edcb117ccf8767975c37ab0238ca4c77574e2706f9b238a15ad4d

    • C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\CDS.exe

      MD5

      424bf196deaeb4ddcafb78e137fa560a

      SHA1

      007738e9486c904a3115daa6e8ba2ee692af58c8

      SHA256

      0963cef2f742a31b2604fe975f4471ae6a76641490fe60805db744fef9bdd5d2

      SHA512

      a9be6dd5b2ed84baea34e0f1b1e8f5388ce3662c5dcb6a80c2d175be95f9598312837420c07b52cdfaa9e94bcffd8c7a2b9db2b551dfac171bce4b92f466e797

    • C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\CDS.exe

      MD5

      424bf196deaeb4ddcafb78e137fa560a

      SHA1

      007738e9486c904a3115daa6e8ba2ee692af58c8

      SHA256

      0963cef2f742a31b2604fe975f4471ae6a76641490fe60805db744fef9bdd5d2

      SHA512

      a9be6dd5b2ed84baea34e0f1b1e8f5388ce3662c5dcb6a80c2d175be95f9598312837420c07b52cdfaa9e94bcffd8c7a2b9db2b551dfac171bce4b92f466e797

    • C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\c.dat

      MD5

      cfcc6c116bbafc7edc788d23aef4e42e

      SHA1

      93059f9e73432101df03c8aae9212a520924c1a6

      SHA256

      7b6c3336aadbf0e04354091bec671ec910d0ab84c8d1efc41e78ce54a396dcc6

      SHA512

      9ba5d175d4f4758e4a0be01c8c4902e7ac170b23547f5276f921e032579af08147fc112436e430855e128dc51784a4511511a43417670139633d8d86d6b1ea9d

    • C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\crypted.exe

      MD5

      74eb284f990f386a431b29aa283b183a

      SHA1

      3d3b105507f2eb10401ff85d3dccb362bfa4be2c

      SHA256

      b7e864e25004fd10aa5af16c6cf43ef370dc8c1cb76deaaa684eef4291d5faa4

      SHA512

      d472d64de342a9197ea4d7cedf14ebf1a3ca7cd16a5f76218e0cf299b504e871f70345f9ce6960bb822d28345a4b4143b78aabc4a3abd8e45c2938e46eda5011

    • C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\crypted.exe

      MD5

      74eb284f990f386a431b29aa283b183a

      SHA1

      3d3b105507f2eb10401ff85d3dccb362bfa4be2c

      SHA256

      b7e864e25004fd10aa5af16c6cf43ef370dc8c1cb76deaaa684eef4291d5faa4

      SHA512

      d472d64de342a9197ea4d7cedf14ebf1a3ca7cd16a5f76218e0cf299b504e871f70345f9ce6960bb822d28345a4b4143b78aabc4a3abd8e45c2938e46eda5011

    • C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\fs.settings

      MD5

      68934a3e9455fa72420237eb05902327

      SHA1

      7cb6efb98ba5972a9b5090dc2e517fe14d12cb04

      SHA256

      fcbcf165908dd18a9e49f7ff27810176db8e9f63b4352213741664245224f8aa

      SHA512

      719fa67eef49c4b2a2b83f0c62bddd88c106aaadb7e21ae057c8802b700e36f81fe3f144812d8b05d66dc663d908b25645e153262cf6d457aa34e684af9e328d

    • C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\lua5.1.dll

      MD5

      c3256800dce47c14acc83ccca4c3e2ac

      SHA1

      9d126818c66991dbc3813a65eddb88bbcf77f30a

      SHA256

      f26f4f66022acc96d0319c09814ebeda60f4ab96b63b6262045dc786dc7c5866

      SHA512

      6865a98ad8a6bd02d1ba35a28b36b6306af393f5e9ad767cd6da027bb021f7399d629423f510c44436ac3e4603b6c606493edf8b14d21fabf3eab16d37bd0d25

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

      MD5

      74eb284f990f386a431b29aa283b183a

      SHA1

      3d3b105507f2eb10401ff85d3dccb362bfa4be2c

      SHA256

      b7e864e25004fd10aa5af16c6cf43ef370dc8c1cb76deaaa684eef4291d5faa4

      SHA512

      d472d64de342a9197ea4d7cedf14ebf1a3ca7cd16a5f76218e0cf299b504e871f70345f9ce6960bb822d28345a4b4143b78aabc4a3abd8e45c2938e46eda5011

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

      MD5

      74eb284f990f386a431b29aa283b183a

      SHA1

      3d3b105507f2eb10401ff85d3dccb362bfa4be2c

      SHA256

      b7e864e25004fd10aa5af16c6cf43ef370dc8c1cb76deaaa684eef4291d5faa4

      SHA512

      d472d64de342a9197ea4d7cedf14ebf1a3ca7cd16a5f76218e0cf299b504e871f70345f9ce6960bb822d28345a4b4143b78aabc4a3abd8e45c2938e46eda5011

    • \Users\Admin\AppData\Local\Temp\IXP000.TMP\CDS.exe

      MD5

      424bf196deaeb4ddcafb78e137fa560a

      SHA1

      007738e9486c904a3115daa6e8ba2ee692af58c8

      SHA256

      0963cef2f742a31b2604fe975f4471ae6a76641490fe60805db744fef9bdd5d2

      SHA512

      a9be6dd5b2ed84baea34e0f1b1e8f5388ce3662c5dcb6a80c2d175be95f9598312837420c07b52cdfaa9e94bcffd8c7a2b9db2b551dfac171bce4b92f466e797

    • \Users\Admin\AppData\Local\Temp\IXP000.TMP\CDS.exe

      MD5

      424bf196deaeb4ddcafb78e137fa560a

      SHA1

      007738e9486c904a3115daa6e8ba2ee692af58c8

      SHA256

      0963cef2f742a31b2604fe975f4471ae6a76641490fe60805db744fef9bdd5d2

      SHA512

      a9be6dd5b2ed84baea34e0f1b1e8f5388ce3662c5dcb6a80c2d175be95f9598312837420c07b52cdfaa9e94bcffd8c7a2b9db2b551dfac171bce4b92f466e797

    • \Users\Admin\AppData\Local\Temp\IXP000.TMP\CDS.exe

      MD5

      424bf196deaeb4ddcafb78e137fa560a

      SHA1

      007738e9486c904a3115daa6e8ba2ee692af58c8

      SHA256

      0963cef2f742a31b2604fe975f4471ae6a76641490fe60805db744fef9bdd5d2

      SHA512

      a9be6dd5b2ed84baea34e0f1b1e8f5388ce3662c5dcb6a80c2d175be95f9598312837420c07b52cdfaa9e94bcffd8c7a2b9db2b551dfac171bce4b92f466e797

    • \Users\Admin\AppData\Local\Temp\IXP000.TMP\crypted.exe

      MD5

      74eb284f990f386a431b29aa283b183a

      SHA1

      3d3b105507f2eb10401ff85d3dccb362bfa4be2c

      SHA256

      b7e864e25004fd10aa5af16c6cf43ef370dc8c1cb76deaaa684eef4291d5faa4

      SHA512

      d472d64de342a9197ea4d7cedf14ebf1a3ca7cd16a5f76218e0cf299b504e871f70345f9ce6960bb822d28345a4b4143b78aabc4a3abd8e45c2938e46eda5011

    • \Users\Admin\AppData\Local\Temp\IXP000.TMP\crypted.exe

      MD5

      74eb284f990f386a431b29aa283b183a

      SHA1

      3d3b105507f2eb10401ff85d3dccb362bfa4be2c

      SHA256

      b7e864e25004fd10aa5af16c6cf43ef370dc8c1cb76deaaa684eef4291d5faa4

      SHA512

      d472d64de342a9197ea4d7cedf14ebf1a3ca7cd16a5f76218e0cf299b504e871f70345f9ce6960bb822d28345a4b4143b78aabc4a3abd8e45c2938e46eda5011

    • \Users\Admin\AppData\Local\Temp\IXP000.TMP\crypted.exe

      MD5

      74eb284f990f386a431b29aa283b183a

      SHA1

      3d3b105507f2eb10401ff85d3dccb362bfa4be2c

      SHA256

      b7e864e25004fd10aa5af16c6cf43ef370dc8c1cb76deaaa684eef4291d5faa4

      SHA512

      d472d64de342a9197ea4d7cedf14ebf1a3ca7cd16a5f76218e0cf299b504e871f70345f9ce6960bb822d28345a4b4143b78aabc4a3abd8e45c2938e46eda5011

    • \Users\Admin\AppData\Local\Temp\IXP000.TMP\crypted.exe

      MD5

      74eb284f990f386a431b29aa283b183a

      SHA1

      3d3b105507f2eb10401ff85d3dccb362bfa4be2c

      SHA256

      b7e864e25004fd10aa5af16c6cf43ef370dc8c1cb76deaaa684eef4291d5faa4

      SHA512

      d472d64de342a9197ea4d7cedf14ebf1a3ca7cd16a5f76218e0cf299b504e871f70345f9ce6960bb822d28345a4b4143b78aabc4a3abd8e45c2938e46eda5011

    • \Users\Admin\AppData\Local\Temp\IXP000.TMP\lua5.1.dll

      MD5

      c3256800dce47c14acc83ccca4c3e2ac

      SHA1

      9d126818c66991dbc3813a65eddb88bbcf77f30a

      SHA256

      f26f4f66022acc96d0319c09814ebeda60f4ab96b63b6262045dc786dc7c5866

      SHA512

      6865a98ad8a6bd02d1ba35a28b36b6306af393f5e9ad767cd6da027bb021f7399d629423f510c44436ac3e4603b6c606493edf8b14d21fabf3eab16d37bd0d25

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

      MD5

      74eb284f990f386a431b29aa283b183a

      SHA1

      3d3b105507f2eb10401ff85d3dccb362bfa4be2c

      SHA256

      b7e864e25004fd10aa5af16c6cf43ef370dc8c1cb76deaaa684eef4291d5faa4

      SHA512

      d472d64de342a9197ea4d7cedf14ebf1a3ca7cd16a5f76218e0cf299b504e871f70345f9ce6960bb822d28345a4b4143b78aabc4a3abd8e45c2938e46eda5011

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

      MD5

      74eb284f990f386a431b29aa283b183a

      SHA1

      3d3b105507f2eb10401ff85d3dccb362bfa4be2c

      SHA256

      b7e864e25004fd10aa5af16c6cf43ef370dc8c1cb76deaaa684eef4291d5faa4

      SHA512

      d472d64de342a9197ea4d7cedf14ebf1a3ca7cd16a5f76218e0cf299b504e871f70345f9ce6960bb822d28345a4b4143b78aabc4a3abd8e45c2938e46eda5011

    • memory/1548-83-0x00000000008C0000-0x00000000008C1000-memory.dmp

      Filesize

      4KB

    • memory/1548-82-0x0000000073610000-0x0000000073BBB000-memory.dmp

      Filesize

      5.7MB

    • memory/1752-54-0x0000000076891000-0x0000000076893000-memory.dmp

      Filesize

      8KB

    • memory/1948-75-0x0000000000AA0000-0x0000000000AA1000-memory.dmp

      Filesize

      4KB

    • memory/1948-74-0x0000000073BC0000-0x000000007416B000-memory.dmp

      Filesize

      5.7MB

    • memory/1948-76-0x0000000073BC0000-0x000000007416B000-memory.dmp

      Filesize

      5.7MB