Analysis

  • max time kernel
    149s
  • max time network
    152s
  • platform
    windows7_x64
  • resource
    win7-en-20211208
  • submitted
    18-12-2021 21:22

General

  • Target

    0C588A633E7979A81579F3317DD735884F660CCC7B78E.exe

  • Size

    43KB

  • MD5

    77aab511a86f2bbd8770e837bced3f03

  • SHA1

    cf9e07c7543e7aa481fcb0d1c2544967f6b0ed94

  • SHA256

    0c588a633e7979a81579f3317dd735884f660ccc7b78ebf20be8654f2546a915

  • SHA512

    67c5cc26b04f7e55a8f8dfd7c5c4483c2af3d5c3e1b1fda99f6d6d329032d918e6d05ef7723ecc54ed0e8d541ab37f2ac71f7cfeb84eda2defa8290f34abf0aa

Malware Config

Extracted

Family

njrat

Version

Njrat 0.7 Golden By Hassan Amiri

Botnet

HacKed

C2

2.tcp.ngrok.io:14241

Mutex

Windows Update

Attributes
  • reg_key

    Windows Update

  • splitter

    |Hassan|

Signatures

  • njRAT/Bladabindi

    Widely used RAT written in .NET.

  • Executes dropped EXE 3 IoCs
  • Drops startup file 2 IoCs
  • Loads dropped DLL 1 IoCs
  • Adds Run key to start application 2 TTPs 2 IoCs
  • 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: GetForegroundWindowSpam 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 31 IoCs
  • Suspicious use of WriteProcessMemory 16 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\0C588A633E7979A81579F3317DD735884F660CCC7B78E.exe
    "C:\Users\Admin\AppData\Local\Temp\0C588A633E7979A81579F3317DD735884F660CCC7B78E.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious behavior: GetForegroundWindowSpam
    • Suspicious use of WriteProcessMemory
    PID:1668
    • C:\Users\Admin\AppData\Roaming\Dllhost.exe
      "C:\Users\Admin\AppData\Roaming\Dllhost.exe"
      2⤵
      • Executes dropped EXE
      • Drops startup file
      • Adds Run key to start application
      • Suspicious behavior: GetForegroundWindowSpam
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:520
      • C:\Windows\SysWOW64\schtasks.exe
        schtasks /create /sc minute /mo 1 /tn Server /tr C:\Users\Admin\AppData\Local\Temp/Server.exe
        3⤵
        • Creates scheduled task(s)
        PID:628
  • C:\Windows\system32\taskeng.exe
    taskeng.exe {28DFA90D-64AA-4FFA-A434-99291FE6B0DB} S-1-5-21-2329389628-4064185017-3901522362-1000:QSKGHMYQ\Admin:Interactive:[1]
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:604
    • C:\Users\Admin\AppData\Local\Temp\Server.exe
      C:\Users\Admin\AppData\Local\Temp/Server.exe
      2⤵
      • Executes dropped EXE
      PID:1192
    • C:\Users\Admin\AppData\Local\Temp\Server.exe
      C:\Users\Admin\AppData\Local\Temp/Server.exe
      2⤵
      • Executes dropped EXE
      PID:916

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

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

    MD5

    77aab511a86f2bbd8770e837bced3f03

    SHA1

    cf9e07c7543e7aa481fcb0d1c2544967f6b0ed94

    SHA256

    0c588a633e7979a81579f3317dd735884f660ccc7b78ebf20be8654f2546a915

    SHA512

    67c5cc26b04f7e55a8f8dfd7c5c4483c2af3d5c3e1b1fda99f6d6d329032d918e6d05ef7723ecc54ed0e8d541ab37f2ac71f7cfeb84eda2defa8290f34abf0aa

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

    MD5

    77aab511a86f2bbd8770e837bced3f03

    SHA1

    cf9e07c7543e7aa481fcb0d1c2544967f6b0ed94

    SHA256

    0c588a633e7979a81579f3317dd735884f660ccc7b78ebf20be8654f2546a915

    SHA512

    67c5cc26b04f7e55a8f8dfd7c5c4483c2af3d5c3e1b1fda99f6d6d329032d918e6d05ef7723ecc54ed0e8d541ab37f2ac71f7cfeb84eda2defa8290f34abf0aa

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

    MD5

    77aab511a86f2bbd8770e837bced3f03

    SHA1

    cf9e07c7543e7aa481fcb0d1c2544967f6b0ed94

    SHA256

    0c588a633e7979a81579f3317dd735884f660ccc7b78ebf20be8654f2546a915

    SHA512

    67c5cc26b04f7e55a8f8dfd7c5c4483c2af3d5c3e1b1fda99f6d6d329032d918e6d05ef7723ecc54ed0e8d541ab37f2ac71f7cfeb84eda2defa8290f34abf0aa

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

    MD5

    77aab511a86f2bbd8770e837bced3f03

    SHA1

    cf9e07c7543e7aa481fcb0d1c2544967f6b0ed94

    SHA256

    0c588a633e7979a81579f3317dd735884f660ccc7b78ebf20be8654f2546a915

    SHA512

    67c5cc26b04f7e55a8f8dfd7c5c4483c2af3d5c3e1b1fda99f6d6d329032d918e6d05ef7723ecc54ed0e8d541ab37f2ac71f7cfeb84eda2defa8290f34abf0aa

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

    MD5

    77aab511a86f2bbd8770e837bced3f03

    SHA1

    cf9e07c7543e7aa481fcb0d1c2544967f6b0ed94

    SHA256

    0c588a633e7979a81579f3317dd735884f660ccc7b78ebf20be8654f2546a915

    SHA512

    67c5cc26b04f7e55a8f8dfd7c5c4483c2af3d5c3e1b1fda99f6d6d329032d918e6d05ef7723ecc54ed0e8d541ab37f2ac71f7cfeb84eda2defa8290f34abf0aa

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

    MD5

    77aab511a86f2bbd8770e837bced3f03

    SHA1

    cf9e07c7543e7aa481fcb0d1c2544967f6b0ed94

    SHA256

    0c588a633e7979a81579f3317dd735884f660ccc7b78ebf20be8654f2546a915

    SHA512

    67c5cc26b04f7e55a8f8dfd7c5c4483c2af3d5c3e1b1fda99f6d6d329032d918e6d05ef7723ecc54ed0e8d541ab37f2ac71f7cfeb84eda2defa8290f34abf0aa

  • memory/520-65-0x0000000004B70000-0x0000000004B71000-memory.dmp

    Filesize

    4KB

  • memory/520-60-0x0000000000000000-mapping.dmp

  • memory/520-63-0x0000000000140000-0x0000000000141000-memory.dmp

    Filesize

    4KB

  • memory/628-66-0x0000000000000000-mapping.dmp

  • memory/916-73-0x0000000000000000-mapping.dmp

  • memory/916-75-0x0000000000E00000-0x0000000000E01000-memory.dmp

    Filesize

    4KB

  • memory/916-77-0x0000000004CA0000-0x0000000004CA1000-memory.dmp

    Filesize

    4KB

  • memory/1192-68-0x0000000000000000-mapping.dmp

  • memory/1192-70-0x0000000000190000-0x0000000000191000-memory.dmp

    Filesize

    4KB

  • memory/1192-72-0x0000000004C20000-0x0000000004C21000-memory.dmp

    Filesize

    4KB

  • memory/1668-54-0x00000000010A0000-0x00000000010A1000-memory.dmp

    Filesize

    4KB

  • memory/1668-58-0x00000000762C1000-0x00000000762C3000-memory.dmp

    Filesize

    8KB

  • memory/1668-56-0x0000000004890000-0x0000000004891000-memory.dmp

    Filesize

    4KB

  • memory/1668-57-0x0000000004890000-0x0000000004891000-memory.dmp

    Filesize

    4KB