Analysis

  • max time kernel
    151s
  • max time network
    92s
  • platform
    windows7_x64
  • resource
    win7-20220901-en
  • resource tags

    arch:x64arch:x86image:win7-20220901-enlocale:en-usos:windows7-x64system
  • submitted
    23-11-2022 13:39

General

  • Target

    91d83becf536a7503dd281fbd799fbca4ea957ead28d5b3d6fc94adc30fe97ac.exe

  • Size

    144KB

  • MD5

    3dcf062bb8a1676412f65399ac258461

  • SHA1

    78a093996ee01a05e01387904a9f32f35510edf2

  • SHA256

    91d83becf536a7503dd281fbd799fbca4ea957ead28d5b3d6fc94adc30fe97ac

  • SHA512

    cf2676b21452f34289b138d8077bb57342b7b10d18fcb1f7d76a293c3a2e6a44f3eacc3fdd91b78afea132064d935ab733b2af480903b6b1a1ca48ce51101f56

  • SSDEEP

    3072:u1a5yo1K4rFnHBXo/f+QqfABAh6S1/Z7iFAtp8VX:e4yOjNpzQAABAh6Srp8

Malware Config

Extracted

Family

njrat

Version

0.6.4

Botnet

admin

C2

nnew748.myvnc.com:1177

Mutex

749e61bd02cc756ea373bd81808cdf08

Attributes
  • reg_key

    749e61bd02cc756ea373bd81808cdf08

  • splitter

    |'|'|

Signatures

  • njRAT/Bladabindi

    Widely used RAT written in .NET.

  • Executes dropped EXE 7 IoCs
  • Modifies Windows Firewall 1 TTPs 1 IoCs
  • Drops startup file 2 IoCs
  • Loads dropped DLL 3 IoCs
  • Adds Run key to start application 2 TTPs 4 IoCs
  • Suspicious use of SetThreadContext 3 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 6 IoCs
  • Suspicious use of WriteProcessMemory 51 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\91d83becf536a7503dd281fbd799fbca4ea957ead28d5b3d6fc94adc30fe97ac.exe
    "C:\Users\Admin\AppData\Local\Temp\91d83becf536a7503dd281fbd799fbca4ea957ead28d5b3d6fc94adc30fe97ac.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1288
    • C:\Users\Admin\AppData\Local\Temp\91d83becf536a7503dd281fbd799fbca4ea957ead28d5b3d6fc94adc30fe97ac.exe
      "C:\Users\Admin\AppData\Local\Temp\91d83becf536a7503dd281fbd799fbca4ea957ead28d5b3d6fc94adc30fe97ac.exe"
      2⤵
      • Loads dropped DLL
      • Suspicious use of WriteProcessMemory
      PID:372
      • C:\Users\Admin\AppData\Roaming\notepad.exe
        "C:\Users\Admin\AppData\Roaming\notepad.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:516
        • C:\Users\Admin\AppData\Roaming\notepad.exe
          "C:\Users\Admin\AppData\Roaming\notepad.exe"
          4⤵
          • Executes dropped EXE
          • Drops startup file
          • Adds Run key to start application
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of WriteProcessMemory
          PID:1856
          • C:\Windows\SysWOW64\netsh.exe
            netsh firewall add allowedprogram "C:\Users\Admin\AppData\Roaming\notepad.exe" "notepad.exe" ENABLE
            5⤵
            • Modifies Windows Firewall
            PID:364
        • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\WUDHost.exe
          "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\WUDHost.exe"
          4⤵
          • Executes dropped EXE
          • Adds Run key to start application
          • Suspicious use of AdjustPrivilegeToken
          PID:1740
    • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\WUDHost.exe
      "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\WUDHost.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:1724
      • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Acctres.exe
        C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Acctres.exe
        3⤵
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:1704
        • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Acctres.exe
          "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Acctres.exe"
          4⤵
          • Executes dropped EXE
          PID:1940
    • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\WUDHost.exe
      "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\WUDHost.exe"
      2⤵
      • Executes dropped EXE
      PID:1192

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Acctres.exe

    Filesize

    144KB

    MD5

    3dcf062bb8a1676412f65399ac258461

    SHA1

    78a093996ee01a05e01387904a9f32f35510edf2

    SHA256

    91d83becf536a7503dd281fbd799fbca4ea957ead28d5b3d6fc94adc30fe97ac

    SHA512

    cf2676b21452f34289b138d8077bb57342b7b10d18fcb1f7d76a293c3a2e6a44f3eacc3fdd91b78afea132064d935ab733b2af480903b6b1a1ca48ce51101f56

  • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Acctres.exe

    Filesize

    144KB

    MD5

    3dcf062bb8a1676412f65399ac258461

    SHA1

    78a093996ee01a05e01387904a9f32f35510edf2

    SHA256

    91d83becf536a7503dd281fbd799fbca4ea957ead28d5b3d6fc94adc30fe97ac

    SHA512

    cf2676b21452f34289b138d8077bb57342b7b10d18fcb1f7d76a293c3a2e6a44f3eacc3fdd91b78afea132064d935ab733b2af480903b6b1a1ca48ce51101f56

  • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Acctres.exe

    Filesize

    144KB

    MD5

    3dcf062bb8a1676412f65399ac258461

    SHA1

    78a093996ee01a05e01387904a9f32f35510edf2

    SHA256

    91d83becf536a7503dd281fbd799fbca4ea957ead28d5b3d6fc94adc30fe97ac

    SHA512

    cf2676b21452f34289b138d8077bb57342b7b10d18fcb1f7d76a293c3a2e6a44f3eacc3fdd91b78afea132064d935ab733b2af480903b6b1a1ca48ce51101f56

  • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\WUDHost.exe

    Filesize

    13KB

    MD5

    87c7263aa4cb3444ef282661c4587035

    SHA1

    5e879db395d5ec83d7477c04fbb2fa63c6b0a6d9

    SHA256

    e84385b30e77b96b9461e34993a399cdcefbdea475a1ef3eb974d0744a42b46c

    SHA512

    1bbd4d4caad626282802e22a51211f0eb6afb08406eb8ac7868b0c06496d661c2c6ef67a506bf25f2a8296bbce82825fe00d67eda0b3caa40c9f30b4008f3426

  • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\WUDHost.exe

    Filesize

    13KB

    MD5

    87c7263aa4cb3444ef282661c4587035

    SHA1

    5e879db395d5ec83d7477c04fbb2fa63c6b0a6d9

    SHA256

    e84385b30e77b96b9461e34993a399cdcefbdea475a1ef3eb974d0744a42b46c

    SHA512

    1bbd4d4caad626282802e22a51211f0eb6afb08406eb8ac7868b0c06496d661c2c6ef67a506bf25f2a8296bbce82825fe00d67eda0b3caa40c9f30b4008f3426

  • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\WUDHost.exe

    Filesize

    13KB

    MD5

    87c7263aa4cb3444ef282661c4587035

    SHA1

    5e879db395d5ec83d7477c04fbb2fa63c6b0a6d9

    SHA256

    e84385b30e77b96b9461e34993a399cdcefbdea475a1ef3eb974d0744a42b46c

    SHA512

    1bbd4d4caad626282802e22a51211f0eb6afb08406eb8ac7868b0c06496d661c2c6ef67a506bf25f2a8296bbce82825fe00d67eda0b3caa40c9f30b4008f3426

  • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\WUDHost.exe

    Filesize

    13KB

    MD5

    87c7263aa4cb3444ef282661c4587035

    SHA1

    5e879db395d5ec83d7477c04fbb2fa63c6b0a6d9

    SHA256

    e84385b30e77b96b9461e34993a399cdcefbdea475a1ef3eb974d0744a42b46c

    SHA512

    1bbd4d4caad626282802e22a51211f0eb6afb08406eb8ac7868b0c06496d661c2c6ef67a506bf25f2a8296bbce82825fe00d67eda0b3caa40c9f30b4008f3426

  • C:\Users\Admin\AppData\Roaming\notepad.exe

    Filesize

    144KB

    MD5

    3dcf062bb8a1676412f65399ac258461

    SHA1

    78a093996ee01a05e01387904a9f32f35510edf2

    SHA256

    91d83becf536a7503dd281fbd799fbca4ea957ead28d5b3d6fc94adc30fe97ac

    SHA512

    cf2676b21452f34289b138d8077bb57342b7b10d18fcb1f7d76a293c3a2e6a44f3eacc3fdd91b78afea132064d935ab733b2af480903b6b1a1ca48ce51101f56

  • C:\Users\Admin\AppData\Roaming\notepad.exe

    Filesize

    144KB

    MD5

    3dcf062bb8a1676412f65399ac258461

    SHA1

    78a093996ee01a05e01387904a9f32f35510edf2

    SHA256

    91d83becf536a7503dd281fbd799fbca4ea957ead28d5b3d6fc94adc30fe97ac

    SHA512

    cf2676b21452f34289b138d8077bb57342b7b10d18fcb1f7d76a293c3a2e6a44f3eacc3fdd91b78afea132064d935ab733b2af480903b6b1a1ca48ce51101f56

  • C:\Users\Admin\AppData\Roaming\notepad.exe

    Filesize

    144KB

    MD5

    3dcf062bb8a1676412f65399ac258461

    SHA1

    78a093996ee01a05e01387904a9f32f35510edf2

    SHA256

    91d83becf536a7503dd281fbd799fbca4ea957ead28d5b3d6fc94adc30fe97ac

    SHA512

    cf2676b21452f34289b138d8077bb57342b7b10d18fcb1f7d76a293c3a2e6a44f3eacc3fdd91b78afea132064d935ab733b2af480903b6b1a1ca48ce51101f56

  • \Users\Admin\AppData\Roaming\Microsoft\Windows\Acctres.exe

    Filesize

    144KB

    MD5

    3dcf062bb8a1676412f65399ac258461

    SHA1

    78a093996ee01a05e01387904a9f32f35510edf2

    SHA256

    91d83becf536a7503dd281fbd799fbca4ea957ead28d5b3d6fc94adc30fe97ac

    SHA512

    cf2676b21452f34289b138d8077bb57342b7b10d18fcb1f7d76a293c3a2e6a44f3eacc3fdd91b78afea132064d935ab733b2af480903b6b1a1ca48ce51101f56

  • \Users\Admin\AppData\Roaming\Microsoft\Windows\WUDHost.exe

    Filesize

    13KB

    MD5

    87c7263aa4cb3444ef282661c4587035

    SHA1

    5e879db395d5ec83d7477c04fbb2fa63c6b0a6d9

    SHA256

    e84385b30e77b96b9461e34993a399cdcefbdea475a1ef3eb974d0744a42b46c

    SHA512

    1bbd4d4caad626282802e22a51211f0eb6afb08406eb8ac7868b0c06496d661c2c6ef67a506bf25f2a8296bbce82825fe00d67eda0b3caa40c9f30b4008f3426

  • \Users\Admin\AppData\Roaming\notepad.exe

    Filesize

    144KB

    MD5

    3dcf062bb8a1676412f65399ac258461

    SHA1

    78a093996ee01a05e01387904a9f32f35510edf2

    SHA256

    91d83becf536a7503dd281fbd799fbca4ea957ead28d5b3d6fc94adc30fe97ac

    SHA512

    cf2676b21452f34289b138d8077bb57342b7b10d18fcb1f7d76a293c3a2e6a44f3eacc3fdd91b78afea132064d935ab733b2af480903b6b1a1ca48ce51101f56

  • memory/364-136-0x0000000000000000-mapping.dmp

  • memory/372-71-0x00000000745E0000-0x0000000074B8B000-memory.dmp

    Filesize

    5.7MB

  • memory/372-61-0x0000000000400000-0x000000000040E000-memory.dmp

    Filesize

    56KB

  • memory/372-57-0x0000000000400000-0x000000000040E000-memory.dmp

    Filesize

    56KB

  • memory/372-67-0x0000000000400000-0x000000000040E000-memory.dmp

    Filesize

    56KB

  • memory/372-65-0x0000000000400000-0x000000000040E000-memory.dmp

    Filesize

    56KB

  • memory/372-80-0x00000000745E0000-0x0000000074B8B000-memory.dmp

    Filesize

    5.7MB

  • memory/372-58-0x0000000000400000-0x000000000040E000-memory.dmp

    Filesize

    56KB

  • memory/372-60-0x0000000000400000-0x000000000040E000-memory.dmp

    Filesize

    56KB

  • memory/372-63-0x0000000000408B0E-mapping.dmp

  • memory/372-62-0x0000000000400000-0x000000000040E000-memory.dmp

    Filesize

    56KB

  • memory/516-76-0x0000000000000000-mapping.dmp

  • memory/516-82-0x00000000745E0000-0x0000000074B8B000-memory.dmp

    Filesize

    5.7MB

  • memory/516-84-0x00000000745E0000-0x0000000074B8B000-memory.dmp

    Filesize

    5.7MB

  • memory/1192-95-0x00000000745E0000-0x0000000074B8B000-memory.dmp

    Filesize

    5.7MB

  • memory/1192-116-0x00000000745E0000-0x0000000074B8B000-memory.dmp

    Filesize

    5.7MB

  • memory/1192-117-0x00000000745E0000-0x0000000074B8B000-memory.dmp

    Filesize

    5.7MB

  • memory/1192-92-0x0000000000000000-mapping.dmp

  • memory/1288-55-0x00000000745E0000-0x0000000074B8B000-memory.dmp

    Filesize

    5.7MB

  • memory/1288-56-0x00000000745E0000-0x0000000074B8B000-memory.dmp

    Filesize

    5.7MB

  • memory/1288-54-0x0000000075FE1000-0x0000000075FE3000-memory.dmp

    Filesize

    8KB

  • memory/1704-115-0x00000000745E0000-0x0000000074B8B000-memory.dmp

    Filesize

    5.7MB

  • memory/1704-90-0x00000000745E0000-0x0000000074B8B000-memory.dmp

    Filesize

    5.7MB

  • memory/1704-87-0x0000000000000000-mapping.dmp

  • memory/1724-70-0x0000000000000000-mapping.dmp

  • memory/1724-81-0x00000000745E0000-0x0000000074B8B000-memory.dmp

    Filesize

    5.7MB

  • memory/1724-91-0x00000000745E0000-0x0000000074B8B000-memory.dmp

    Filesize

    5.7MB

  • memory/1724-83-0x00000000745E0000-0x0000000074B8B000-memory.dmp

    Filesize

    5.7MB

  • memory/1740-139-0x00000000745E0000-0x0000000074B8B000-memory.dmp

    Filesize

    5.7MB

  • memory/1740-121-0x00000000745E0000-0x0000000074B8B000-memory.dmp

    Filesize

    5.7MB

  • memory/1740-118-0x0000000000000000-mapping.dmp

  • memory/1856-114-0x00000000745E0000-0x0000000074B8B000-memory.dmp

    Filesize

    5.7MB

  • memory/1856-102-0x0000000000408B0E-mapping.dmp

  • memory/1856-105-0x0000000000080000-0x000000000008E000-memory.dmp

    Filesize

    56KB

  • memory/1856-112-0x0000000000080000-0x000000000008E000-memory.dmp

    Filesize

    56KB

  • memory/1856-138-0x00000000745E0000-0x0000000074B8B000-memory.dmp

    Filesize

    5.7MB

  • memory/1856-109-0x0000000000080000-0x000000000008E000-memory.dmp

    Filesize

    56KB

  • memory/1940-128-0x0000000000408B0E-mapping.dmp

  • memory/1940-135-0x00000000745E0000-0x0000000074B8B000-memory.dmp

    Filesize

    5.7MB