Analysis

  • max time kernel
    120s
  • max time network
    97s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    30-12-2024 23:47

General

  • Target

    d9e9744f18db014ef164c4fb1ac1a6fbe56995280bf481ed60c91968e4fb333dN.exe

  • Size

    172KB

  • MD5

    615e7480ad72e1972fc90fbb1fa23bb0

  • SHA1

    aec002a1465c11efcf492273bee97a22c8b6fa77

  • SHA256

    d9e9744f18db014ef164c4fb1ac1a6fbe56995280bf481ed60c91968e4fb333d

  • SHA512

    8d223c74d73d83a093bfdbbf5c5a94c2326a022750ff4b55b0a95156d8098de57444a4efbbb09762cae12c002fbe953a3361014431440230307228c3c70e1b19

  • SSDEEP

    3072:UVqoCl/YgjxEufVU0TbTyDDalRFvh4Bge+yJYL:UsLqdufVUNDaBh4GH

Malware Config

Extracted

Family

njrat

Version

im523

Botnet

HacKed

C2

learn-rage.gl.at.ply.gg:27556

Mutex

e456603c650484e45e47269f670d15a9

Attributes
  • reg_key

    e456603c650484e45e47269f670d15a9

  • splitter

    |'|'|

Signatures

  • Modifies visiblity of hidden/system files in Explorer 2 TTPs 2 IoCs
  • Njrat family
  • njRAT/Bladabindi

    Widely used RAT written in .NET.

  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Executes dropped EXE 10 IoCs
  • Adds Run key to start application 2 TTPs 4 IoCs
  • Drops file in System32 directory 2 IoCs
  • Drops file in Windows directory 6 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 11 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 2 IoCs
  • Suspicious use of SetWindowsHookEx 18 IoCs
  • Suspicious use of WriteProcessMemory 30 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\d9e9744f18db014ef164c4fb1ac1a6fbe56995280bf481ed60c91968e4fb333dN.exe
    "C:\Users\Admin\AppData\Local\Temp\d9e9744f18db014ef164c4fb1ac1a6fbe56995280bf481ed60c91968e4fb333dN.exe"
    1⤵
    • Drops file in Windows directory
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:2980
    • \??\c:\users\admin\appdata\local\temp\d9e9744f18db014ef164c4fb1ac1a6fbe56995280bf481ed60c91968e4fb333dn.exe 
      c:\users\admin\appdata\local\temp\d9e9744f18db014ef164c4fb1ac1a6fbe56995280bf481ed60c91968e4fb333dn.exe 
      2⤵
      • Checks computer location settings
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:2660
      • C:\Users\Admin\AppData\Local\Temp\server.exe
        "C:\Users\Admin\AppData\Local\Temp\server.exe"
        3⤵
        • Executes dropped EXE
        • Drops file in Windows directory
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:2632
        • \??\c:\users\admin\appdata\local\temp\server.exe 
          c:\users\admin\appdata\local\temp\server.exe 
          4⤵
          • Executes dropped EXE
          • System Location Discovery: System Language Discovery
          PID:2784
        • C:\Windows\Resources\Themes\icsys.icn.exe
          C:\Windows\Resources\Themes\icsys.icn.exe
          4⤵
          • Executes dropped EXE
          • System Location Discovery: System Language Discovery
          • Suspicious use of SetWindowsHookEx
          • Suspicious use of WriteProcessMemory
          PID:4572
          • \??\c:\windows\resources\themes\explorer.exe
            c:\windows\resources\themes\explorer.exe
            5⤵
            • Executes dropped EXE
            • System Location Discovery: System Language Discovery
            • Suspicious use of SetWindowsHookEx
            PID:840
    • C:\Windows\Resources\Themes\icsys.icn.exe
      C:\Windows\Resources\Themes\icsys.icn.exe
      2⤵
      • Executes dropped EXE
      • Drops file in Windows directory
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:2416
      • \??\c:\windows\resources\themes\explorer.exe
        c:\windows\resources\themes\explorer.exe
        3⤵
        • Modifies visiblity of hidden/system files in Explorer
        • Executes dropped EXE
        • Adds Run key to start application
        • Drops file in System32 directory
        • Drops file in Windows directory
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: GetForegroundWindowSpam
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:4536
        • \??\c:\windows\resources\spoolsv.exe
          c:\windows\resources\spoolsv.exe SE
          4⤵
          • Executes dropped EXE
          • Drops file in Windows directory
          • System Location Discovery: System Language Discovery
          • Suspicious use of SetWindowsHookEx
          • Suspicious use of WriteProcessMemory
          PID:376
          • \??\c:\windows\resources\svchost.exe
            c:\windows\resources\svchost.exe
            5⤵
            • Modifies visiblity of hidden/system files in Explorer
            • Executes dropped EXE
            • Adds Run key to start application
            • Drops file in System32 directory
            • System Location Discovery: System Language Discovery
            • Suspicious behavior: GetForegroundWindowSpam
            • Suspicious use of SetWindowsHookEx
            • Suspicious use of WriteProcessMemory
            PID:2692
            • \??\c:\windows\resources\spoolsv.exe
              c:\windows\resources\spoolsv.exe PR
              6⤵
              • Executes dropped EXE
              • System Location Discovery: System Language Discovery
              • Suspicious use of SetWindowsHookEx
              PID:3132

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\d9e9744f18db014ef164c4fb1ac1a6fbe56995280bf481ed60c91968e4fb333dn.exe 

    Filesize

    37KB

    MD5

    266dab6809fcc7a59f79a36edfff6682

    SHA1

    ab0b69adea1fffa3f35705db40c9b4531624ea84

    SHA256

    72f1513b6c29378f8e7cb14a727ccdea12f1581ebcb84a2a5dd7da8a2b70cc6d

    SHA512

    4a8b8904023deb4b31f42bf50cb9d3e5018158a52fde270dac933f6978153b9c9bf801093d7aec22e654c7ff50e57f970db9b14ffbf4e3e61df5858ad2830f15

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

    Filesize

    172KB

    MD5

    615e7480ad72e1972fc90fbb1fa23bb0

    SHA1

    aec002a1465c11efcf492273bee97a22c8b6fa77

    SHA256

    d9e9744f18db014ef164c4fb1ac1a6fbe56995280bf481ed60c91968e4fb333d

    SHA512

    8d223c74d73d83a093bfdbbf5c5a94c2326a022750ff4b55b0a95156d8098de57444a4efbbb09762cae12c002fbe953a3361014431440230307228c3c70e1b19

  • C:\Windows\Resources\Themes\explorer.exe

    Filesize

    135KB

    MD5

    2c1d7bdf6fd0ab2cea4d94f46d082583

    SHA1

    d95685793d698e582b401b3041d818bfbb151e40

    SHA256

    a1ef829b4418329a57c2bf88d304850ae40f823a261b842f6367dac24c96ef0e

    SHA512

    c2ac552a14c18d369d3e20cf59355e4847dcdc43ff32f505efc9999e289f80fa35386dcbd6eb19cb736cc5c96560833be16a25cd1bb6dc8f8090963fee1d5816

  • C:\Windows\Resources\Themes\icsys.icn.exe

    Filesize

    135KB

    MD5

    9fcb365b27da55232f5db607c1a5684d

    SHA1

    906d0e0648cccc8aebbe79442e53fcab995442d6

    SHA256

    7dce4cb6b2200d874a50723ab3fe2f318f8628103eed95b3cfaa7727a89c3994

    SHA512

    ea219830897ca8b2d3dc39d90eefe4ced03f976ff128516878723ea505009b577c2e9a8169c050f440c97b54c750616acc14615740ca0f347d69a400fcf49dab

  • C:\Windows\Resources\spoolsv.exe

    Filesize

    135KB

    MD5

    1e6253ffecf5b6e42b027f909e4f1f9d

    SHA1

    78961e7f392e2895d71da5d91743c85eb54090c7

    SHA256

    a71bacd3af9ac4b1d804425c9af836edabaf3591df3d2ee279a3c5db0e383fcc

    SHA512

    4d84f0ebe744a1a23222f32ef85a9068e0b64a5ff3f9cb224eaff31dafe6daaeb9c8748bd099fb8a181b16f720876d134204b86daa7502253cd0a7ffbe2df238

  • C:\Windows\Resources\svchost.exe

    Filesize

    135KB

    MD5

    bd3f08dc88fae6a0776c3a1f346eefe5

    SHA1

    e204b3c95e800ae65e2f51c344a9f46547c78b54

    SHA256

    8cc0f068d682aa522ad7957a42bfb462629599f203e048f7187ada870475aaea

    SHA512

    c8804cec64d4dfe303034f8c2de6bf870f411f7ea102ae38893e06647a82b16d13d1f827071706e9c0b607689ee3e8dd83a1d881df7253d953a27cdd1ba1d4d4

  • memory/376-66-0x0000000000400000-0x000000000041F000-memory.dmp

    Filesize

    124KB

  • memory/840-82-0x0000000000400000-0x000000000041F000-memory.dmp

    Filesize

    124KB

  • memory/2416-71-0x0000000000400000-0x000000000041F000-memory.dmp

    Filesize

    124KB

  • memory/2632-54-0x0000000000400000-0x000000000041F000-memory.dmp

    Filesize

    124KB

  • memory/2632-84-0x0000000000400000-0x000000000041F000-memory.dmp

    Filesize

    124KB

  • memory/2660-24-0x00000000746A0000-0x0000000074C51000-memory.dmp

    Filesize

    5.7MB

  • memory/2660-23-0x00000000746A2000-0x00000000746A3000-memory.dmp

    Filesize

    4KB

  • memory/2660-10-0x00000000746A0000-0x0000000074C51000-memory.dmp

    Filesize

    5.7MB

  • memory/2660-11-0x00000000746A0000-0x0000000074C51000-memory.dmp

    Filesize

    5.7MB

  • memory/2660-9-0x00000000746A2000-0x00000000746A3000-memory.dmp

    Filesize

    4KB

  • memory/2660-58-0x00000000746A0000-0x0000000074C51000-memory.dmp

    Filesize

    5.7MB

  • memory/2692-86-0x0000000000400000-0x000000000041F000-memory.dmp

    Filesize

    124KB

  • memory/2980-0-0x0000000000400000-0x000000000041F000-memory.dmp

    Filesize

    124KB

  • memory/2980-72-0x0000000000400000-0x000000000041F000-memory.dmp

    Filesize

    124KB

  • memory/3132-65-0x0000000000400000-0x000000000041F000-memory.dmp

    Filesize

    124KB

  • memory/4536-85-0x0000000000400000-0x000000000041F000-memory.dmp

    Filesize

    124KB

  • memory/4572-83-0x0000000000400000-0x000000000041F000-memory.dmp

    Filesize

    124KB