Analysis

  • max time kernel
    179s
  • max time network
    226s
  • platform
    windows7_x64
  • resource
    win7-20220414-en
  • submitted
    08-05-2022 03:23

General

  • Target

    22a54b44940c863a3d5ecab8a0c0db9adca5cabb209f39fde2a5d2d4467869f8.exe

  • Size

    3.2MB

  • MD5

    39a92446a2cda218e514994bbfa5163e

  • SHA1

    b85ff67f9f4e798cfcc8409d867d2b9c581c36a5

  • SHA256

    22a54b44940c863a3d5ecab8a0c0db9adca5cabb209f39fde2a5d2d4467869f8

  • SHA512

    71176a92c06a749cfc5455d2e2ed9395feddd88a4ed66a8d08343b69636b71731af5579a3600eb0c7a45e319c529a9d837449e5a83ed7fc938caecba054e539e

Malware Config

Extracted

Family

njrat

Botnet

Zombie

Mutex

09c32d2d0a299e9d040cc8b2a01b8e4f

Attributes
  • reg_key

    09c32d2d0a299e9d040cc8b2a01b8e4f

Signatures

  • njRAT/Bladabindi

    Widely used RAT written in .NET.

  • Executes dropped EXE 5 IoCs
  • Modifies Windows Firewall 1 TTPs
  • Drops startup file 2 IoCs
  • Loads dropped DLL 15 IoCs
  • Adds Run key to start application 2 TTPs 4 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Program crash 1 IoCs
  • Modifies system certificate store 2 TTPs 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 10 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 47 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\22a54b44940c863a3d5ecab8a0c0db9adca5cabb209f39fde2a5d2d4467869f8.exe
    "C:\Users\Admin\AppData\Local\Temp\22a54b44940c863a3d5ecab8a0c0db9adca5cabb209f39fde2a5d2d4467869f8.exe"
    1⤵
    • Loads dropped DLL
    • Adds Run key to start application
    • Suspicious use of WriteProcessMemory
    PID:1420
    • 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 behavior: EnumeratesProcesses
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:936
      • 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:1788
        • C:\Users\Admin\AppData\Roaming\Token_Build.exe
          "C:\Users\Admin\AppData\Roaming\Token_Build.exe"
          4⤵
          • Executes dropped EXE
          • Loads dropped DLL
          • Suspicious use of WriteProcessMemory
          PID:1760
          • C:\Users\Admin\AppData\Local\Temp\crss.exe
            "C:\Users\Admin\AppData\Local\Temp\crss.exe"
            5⤵
            • Executes dropped EXE
            • Drops startup file
            • Loads dropped DLL
            • Adds Run key to start application
            • Suspicious use of AdjustPrivilegeToken
            • Suspicious use of WriteProcessMemory
            PID:828
            • C:\Windows\SysWOW64\netsh.exe
              netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\crss.exe" "crss.exe" ENABLE
              6⤵
                PID:1952
          • C:\Users\Admin\AppData\Roaming\Token Build.exe
            "C:\Users\Admin\AppData\Roaming\Token Build.exe"
            4⤵
            • Executes dropped EXE
            • Modifies system certificate store
            • Suspicious use of AdjustPrivilegeToken
            • Suspicious use of WriteProcessMemory
            PID:464
            • C:\Windows\system32\WerFault.exe
              C:\Windows\system32\WerFault.exe -u -p 464 -s 1500
              5⤵
              • Program crash
              PID:1816
    • C:\Windows\system32\AUDIODG.EXE
      C:\Windows\system32\AUDIODG.EXE 0x2f0
      1⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:1128

    Network

    MITRE ATT&CK Matrix ATT&CK v6

    Persistence

    Modify Existing Service

    1
    T1031

    Registry Run Keys / Startup Folder

    1
    T1060

    Defense Evasion

    Modify Registry

    2
    T1112

    Install Root Certificate

    1
    T1130

    Discovery

    System Information Discovery

    1
    T1082

    Replay Monitor

    Loading Replay Monitor...

    Downloads

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

      2KB

      MD5

      340b294efc691d1b20c64175d565ebc7

      SHA1

      81cb9649bd1c9a62ae79e781818fc24d15c29ce7

      SHA256

      72566894059452101ea836bbff9ede5069141eeb52022ab55baa24e1666825c9

      SHA512

      1395a8e175c63a1a1ff459a9dac437156c74299272e020e7e078a087969251a8534f17244a529acbc1b6800a97d4c0abfa3c88f6fcb88423f56dfaae9b49fc3d

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

      13KB

      MD5

      3e7ecaeb51c2812d13b07ec852d74aaf

      SHA1

      e9bdab93596ffb0f7f8c65243c579180939acb26

      SHA256

      e7e942993864e8b18780ef10a415f7b93924c6378248c52f0c96895735222b96

      SHA512

      635cd5173b595f1905af9eeea65037601cf8496d519c506b6d082662d438c26a1bfe653eaf6edcb117ccf8767975c37ab0238ca4c77574e2706f9b238a15ad4d

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

      6.1MB

      MD5

      424bf196deaeb4ddcafb78e137fa560a

      SHA1

      007738e9486c904a3115daa6e8ba2ee692af58c8

      SHA256

      0963cef2f742a31b2604fe975f4471ae6a76641490fe60805db744fef9bdd5d2

      SHA512

      a9be6dd5b2ed84baea34e0f1b1e8f5388ce3662c5dcb6a80c2d175be95f9598312837420c07b52cdfaa9e94bcffd8c7a2b9db2b551dfac171bce4b92f466e797

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

      6.1MB

      MD5

      424bf196deaeb4ddcafb78e137fa560a

      SHA1

      007738e9486c904a3115daa6e8ba2ee692af58c8

      SHA256

      0963cef2f742a31b2604fe975f4471ae6a76641490fe60805db744fef9bdd5d2

      SHA512

      a9be6dd5b2ed84baea34e0f1b1e8f5388ce3662c5dcb6a80c2d175be95f9598312837420c07b52cdfaa9e94bcffd8c7a2b9db2b551dfac171bce4b92f466e797

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

      53KB

      MD5

      f59a3f249546f6364164a92de882e126

      SHA1

      bbd36f6fc13d13c16d5d3f0567322be5c14698ba

      SHA256

      0d6730a8d16c8e1f31dbdcbea32a17ffb9e59356137863dffc852dcb7bdf726f

      SHA512

      14f8b6e7737acaf229ae8d5e7c47a40d1466d92ccd1be17ebf4176f783591f27504dfba5cd3e5b2feadfb787788fdd038d7e3fdbb48be723b31245b3167ee1bb

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

      53KB

      MD5

      9ba8b7790a9c9ef4f086215e811d8249

      SHA1

      69f30d6bb7e5f2bc01a1eaae8c18b0ccce06d936

      SHA256

      fc10cbd3e1d997f933070bc7877b579af19d972f1617694f8bcb2eb25e9073db

      SHA512

      1b1ca5f3d200f946c72680e2d1fa1c290990fdd99fa47ce6a9600a6fe043eb8b7e06c44bdf6eb47a469444c811ac6cb2dfb5949b2c163c35d0f141c0fd69cc43

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

      53KB

      MD5

      9ba8b7790a9c9ef4f086215e811d8249

      SHA1

      69f30d6bb7e5f2bc01a1eaae8c18b0ccce06d936

      SHA256

      fc10cbd3e1d997f933070bc7877b579af19d972f1617694f8bcb2eb25e9073db

      SHA512

      1b1ca5f3d200f946c72680e2d1fa1c290990fdd99fa47ce6a9600a6fe043eb8b7e06c44bdf6eb47a469444c811ac6cb2dfb5949b2c163c35d0f141c0fd69cc43

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

      5B

      MD5

      68934a3e9455fa72420237eb05902327

      SHA1

      7cb6efb98ba5972a9b5090dc2e517fe14d12cb04

      SHA256

      fcbcf165908dd18a9e49f7ff27810176db8e9f63b4352213741664245224f8aa

      SHA512

      719fa67eef49c4b2a2b83f0c62bddd88c106aaadb7e21ae057c8802b700e36f81fe3f144812d8b05d66dc663d908b25645e153262cf6d457aa34e684af9e328d

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

      322KB

      MD5

      c3256800dce47c14acc83ccca4c3e2ac

      SHA1

      9d126818c66991dbc3813a65eddb88bbcf77f30a

      SHA256

      f26f4f66022acc96d0319c09814ebeda60f4ab96b63b6262045dc786dc7c5866

      SHA512

      6865a98ad8a6bd02d1ba35a28b36b6306af393f5e9ad767cd6da027bb021f7399d629423f510c44436ac3e4603b6c606493edf8b14d21fabf3eab16d37bd0d25

    • C:\Users\Admin\AppData\Local\Temp\crss.exe
      Filesize

      32KB

      MD5

      35a1e677c699dfef4db97b406e01c40c

      SHA1

      d9ce28092a979fbaf0fdae3cb7869159efa6c867

      SHA256

      5019177add4d0b65e09f3583d9e756375e90f09db56eb8154d1e92feba2e6551

      SHA512

      c90feca40ed1be1137c2f088e0ce780d6dd7d7e690afe69589a6d35f7f63bff099315623443dc4df81b723819b3641e84107b029ad65e9f2d2b71d9cd654696e

    • C:\Users\Admin\AppData\Local\Temp\crss.exe
      Filesize

      32KB

      MD5

      35a1e677c699dfef4db97b406e01c40c

      SHA1

      d9ce28092a979fbaf0fdae3cb7869159efa6c867

      SHA256

      5019177add4d0b65e09f3583d9e756375e90f09db56eb8154d1e92feba2e6551

      SHA512

      c90feca40ed1be1137c2f088e0ce780d6dd7d7e690afe69589a6d35f7f63bff099315623443dc4df81b723819b3641e84107b029ad65e9f2d2b71d9cd654696e

    • C:\Users\Admin\AppData\Roaming\Token Build.exe
      Filesize

      10KB

      MD5

      0bddd624c6431347244773434b9bdec2

      SHA1

      00b0c2d9372665983208d0a031197f9a946641d7

      SHA256

      1d2985dbeac7ad0b3d309345e054d98320f7178c00d1a27346e6ea829c229282

      SHA512

      a18dbc855edaae6ecbb1cc137014c0822778b1ef3763665ae192c97eb9eeab5d9fecdd3a296f982a9e002c651b554bc101ba3b7ff400843e9e714dcbc3c8d7e2

    • C:\Users\Admin\AppData\Roaming\Token Build.exe
      Filesize

      10KB

      MD5

      0bddd624c6431347244773434b9bdec2

      SHA1

      00b0c2d9372665983208d0a031197f9a946641d7

      SHA256

      1d2985dbeac7ad0b3d309345e054d98320f7178c00d1a27346e6ea829c229282

      SHA512

      a18dbc855edaae6ecbb1cc137014c0822778b1ef3763665ae192c97eb9eeab5d9fecdd3a296f982a9e002c651b554bc101ba3b7ff400843e9e714dcbc3c8d7e2

    • C:\Users\Admin\AppData\Roaming\Token_Build.exe
      Filesize

      32KB

      MD5

      35a1e677c699dfef4db97b406e01c40c

      SHA1

      d9ce28092a979fbaf0fdae3cb7869159efa6c867

      SHA256

      5019177add4d0b65e09f3583d9e756375e90f09db56eb8154d1e92feba2e6551

      SHA512

      c90feca40ed1be1137c2f088e0ce780d6dd7d7e690afe69589a6d35f7f63bff099315623443dc4df81b723819b3641e84107b029ad65e9f2d2b71d9cd654696e

    • C:\Users\Admin\AppData\Roaming\Token_Build.exe
      Filesize

      32KB

      MD5

      35a1e677c699dfef4db97b406e01c40c

      SHA1

      d9ce28092a979fbaf0fdae3cb7869159efa6c867

      SHA256

      5019177add4d0b65e09f3583d9e756375e90f09db56eb8154d1e92feba2e6551

      SHA512

      c90feca40ed1be1137c2f088e0ce780d6dd7d7e690afe69589a6d35f7f63bff099315623443dc4df81b723819b3641e84107b029ad65e9f2d2b71d9cd654696e

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

      6.1MB

      MD5

      424bf196deaeb4ddcafb78e137fa560a

      SHA1

      007738e9486c904a3115daa6e8ba2ee692af58c8

      SHA256

      0963cef2f742a31b2604fe975f4471ae6a76641490fe60805db744fef9bdd5d2

      SHA512

      a9be6dd5b2ed84baea34e0f1b1e8f5388ce3662c5dcb6a80c2d175be95f9598312837420c07b52cdfaa9e94bcffd8c7a2b9db2b551dfac171bce4b92f466e797

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

      6.1MB

      MD5

      424bf196deaeb4ddcafb78e137fa560a

      SHA1

      007738e9486c904a3115daa6e8ba2ee692af58c8

      SHA256

      0963cef2f742a31b2604fe975f4471ae6a76641490fe60805db744fef9bdd5d2

      SHA512

      a9be6dd5b2ed84baea34e0f1b1e8f5388ce3662c5dcb6a80c2d175be95f9598312837420c07b52cdfaa9e94bcffd8c7a2b9db2b551dfac171bce4b92f466e797

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

      6.1MB

      MD5

      424bf196deaeb4ddcafb78e137fa560a

      SHA1

      007738e9486c904a3115daa6e8ba2ee692af58c8

      SHA256

      0963cef2f742a31b2604fe975f4471ae6a76641490fe60805db744fef9bdd5d2

      SHA512

      a9be6dd5b2ed84baea34e0f1b1e8f5388ce3662c5dcb6a80c2d175be95f9598312837420c07b52cdfaa9e94bcffd8c7a2b9db2b551dfac171bce4b92f466e797

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

      53KB

      MD5

      9ba8b7790a9c9ef4f086215e811d8249

      SHA1

      69f30d6bb7e5f2bc01a1eaae8c18b0ccce06d936

      SHA256

      fc10cbd3e1d997f933070bc7877b579af19d972f1617694f8bcb2eb25e9073db

      SHA512

      1b1ca5f3d200f946c72680e2d1fa1c290990fdd99fa47ce6a9600a6fe043eb8b7e06c44bdf6eb47a469444c811ac6cb2dfb5949b2c163c35d0f141c0fd69cc43

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

      53KB

      MD5

      9ba8b7790a9c9ef4f086215e811d8249

      SHA1

      69f30d6bb7e5f2bc01a1eaae8c18b0ccce06d936

      SHA256

      fc10cbd3e1d997f933070bc7877b579af19d972f1617694f8bcb2eb25e9073db

      SHA512

      1b1ca5f3d200f946c72680e2d1fa1c290990fdd99fa47ce6a9600a6fe043eb8b7e06c44bdf6eb47a469444c811ac6cb2dfb5949b2c163c35d0f141c0fd69cc43

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

      53KB

      MD5

      9ba8b7790a9c9ef4f086215e811d8249

      SHA1

      69f30d6bb7e5f2bc01a1eaae8c18b0ccce06d936

      SHA256

      fc10cbd3e1d997f933070bc7877b579af19d972f1617694f8bcb2eb25e9073db

      SHA512

      1b1ca5f3d200f946c72680e2d1fa1c290990fdd99fa47ce6a9600a6fe043eb8b7e06c44bdf6eb47a469444c811ac6cb2dfb5949b2c163c35d0f141c0fd69cc43

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

      53KB

      MD5

      9ba8b7790a9c9ef4f086215e811d8249

      SHA1

      69f30d6bb7e5f2bc01a1eaae8c18b0ccce06d936

      SHA256

      fc10cbd3e1d997f933070bc7877b579af19d972f1617694f8bcb2eb25e9073db

      SHA512

      1b1ca5f3d200f946c72680e2d1fa1c290990fdd99fa47ce6a9600a6fe043eb8b7e06c44bdf6eb47a469444c811ac6cb2dfb5949b2c163c35d0f141c0fd69cc43

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

      53KB

      MD5

      9ba8b7790a9c9ef4f086215e811d8249

      SHA1

      69f30d6bb7e5f2bc01a1eaae8c18b0ccce06d936

      SHA256

      fc10cbd3e1d997f933070bc7877b579af19d972f1617694f8bcb2eb25e9073db

      SHA512

      1b1ca5f3d200f946c72680e2d1fa1c290990fdd99fa47ce6a9600a6fe043eb8b7e06c44bdf6eb47a469444c811ac6cb2dfb5949b2c163c35d0f141c0fd69cc43

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

      53KB

      MD5

      9ba8b7790a9c9ef4f086215e811d8249

      SHA1

      69f30d6bb7e5f2bc01a1eaae8c18b0ccce06d936

      SHA256

      fc10cbd3e1d997f933070bc7877b579af19d972f1617694f8bcb2eb25e9073db

      SHA512

      1b1ca5f3d200f946c72680e2d1fa1c290990fdd99fa47ce6a9600a6fe043eb8b7e06c44bdf6eb47a469444c811ac6cb2dfb5949b2c163c35d0f141c0fd69cc43

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

      322KB

      MD5

      c3256800dce47c14acc83ccca4c3e2ac

      SHA1

      9d126818c66991dbc3813a65eddb88bbcf77f30a

      SHA256

      f26f4f66022acc96d0319c09814ebeda60f4ab96b63b6262045dc786dc7c5866

      SHA512

      6865a98ad8a6bd02d1ba35a28b36b6306af393f5e9ad767cd6da027bb021f7399d629423f510c44436ac3e4603b6c606493edf8b14d21fabf3eab16d37bd0d25

    • \Users\Admin\AppData\Local\Temp\crss.exe
      Filesize

      32KB

      MD5

      35a1e677c699dfef4db97b406e01c40c

      SHA1

      d9ce28092a979fbaf0fdae3cb7869159efa6c867

      SHA256

      5019177add4d0b65e09f3583d9e756375e90f09db56eb8154d1e92feba2e6551

      SHA512

      c90feca40ed1be1137c2f088e0ce780d6dd7d7e690afe69589a6d35f7f63bff099315623443dc4df81b723819b3641e84107b029ad65e9f2d2b71d9cd654696e

    • \Users\Admin\AppData\Local\Temp\crss.exe
      Filesize

      32KB

      MD5

      35a1e677c699dfef4db97b406e01c40c

      SHA1

      d9ce28092a979fbaf0fdae3cb7869159efa6c867

      SHA256

      5019177add4d0b65e09f3583d9e756375e90f09db56eb8154d1e92feba2e6551

      SHA512

      c90feca40ed1be1137c2f088e0ce780d6dd7d7e690afe69589a6d35f7f63bff099315623443dc4df81b723819b3641e84107b029ad65e9f2d2b71d9cd654696e

    • \Users\Admin\AppData\Roaming\Token Build.exe
      Filesize

      10KB

      MD5

      0bddd624c6431347244773434b9bdec2

      SHA1

      00b0c2d9372665983208d0a031197f9a946641d7

      SHA256

      1d2985dbeac7ad0b3d309345e054d98320f7178c00d1a27346e6ea829c229282

      SHA512

      a18dbc855edaae6ecbb1cc137014c0822778b1ef3763665ae192c97eb9eeab5d9fecdd3a296f982a9e002c651b554bc101ba3b7ff400843e9e714dcbc3c8d7e2

    • \Users\Admin\AppData\Roaming\Token_Build.exe
      Filesize

      32KB

      MD5

      35a1e677c699dfef4db97b406e01c40c

      SHA1

      d9ce28092a979fbaf0fdae3cb7869159efa6c867

      SHA256

      5019177add4d0b65e09f3583d9e756375e90f09db56eb8154d1e92feba2e6551

      SHA512

      c90feca40ed1be1137c2f088e0ce780d6dd7d7e690afe69589a6d35f7f63bff099315623443dc4df81b723819b3641e84107b029ad65e9f2d2b71d9cd654696e

    • \Users\Admin\AppData\Roaming\Token_Build.exe
      Filesize

      32KB

      MD5

      35a1e677c699dfef4db97b406e01c40c

      SHA1

      d9ce28092a979fbaf0fdae3cb7869159efa6c867

      SHA256

      5019177add4d0b65e09f3583d9e756375e90f09db56eb8154d1e92feba2e6551

      SHA512

      c90feca40ed1be1137c2f088e0ce780d6dd7d7e690afe69589a6d35f7f63bff099315623443dc4df81b723819b3641e84107b029ad65e9f2d2b71d9cd654696e

    • memory/464-80-0x0000000000000000-mapping.dmp
    • memory/464-89-0x00000000012B0000-0x00000000012B8000-memory.dmp
      Filesize

      32KB

    • memory/828-92-0x0000000000000000-mapping.dmp
    • memory/828-97-0x0000000072F80000-0x000000007352B000-memory.dmp
      Filesize

      5.7MB

    • memory/936-56-0x0000000000000000-mapping.dmp
    • memory/1420-54-0x0000000075D21000-0x0000000075D23000-memory.dmp
      Filesize

      8KB

    • memory/1760-90-0x0000000072F80000-0x000000007352B000-memory.dmp
      Filesize

      5.7MB

    • memory/1760-83-0x0000000000000000-mapping.dmp
    • memory/1788-73-0x0000000000000000-mapping.dmp
    • memory/1788-78-0x0000000072F80000-0x000000007352B000-memory.dmp
      Filesize

      5.7MB

    • memory/1816-98-0x0000000000000000-mapping.dmp
    • memory/1952-99-0x0000000000000000-mapping.dmp