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Analysis

  • max time kernel
    14s
  • max time network
    14s
  • platform
    windows7_x64
  • resource
    win7-20231129-en
  • resource tags

    arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
  • submitted
    18/01/2024, 15:51

General

  • Target

    start.exe

  • Size

    93KB

  • MD5

    937286297fbc003e6a69fdc0f02ce8b0

  • SHA1

    2ebd595bbb357264649f17f8b066941f05befefb

  • SHA256

    35b46563f4d1ef02e7e2a315df8bbf0f8c2e49803856af0cf1418ea19fba58cf

  • SHA512

    9c26792ef5102c7215afae12264e2eca6c2a0f9ed67d9b84918b720f4ca81b5fa2cdb59a28f4089e25abb93243a3d90e98d45dda9862286e2e074708eaf405f4

  • SSDEEP

    1536:t8NBNvGfr2p4dTc/hDjEwzGi1dDmD4gS:t8Yfr2p4dI/Gi1dwh

Malware Config

Extracted

Family

njrat

Version

0.7d

Botnet

HacKed

C2

hakim32.ddns.net:2000

dead-reviewer.gl.at.ply.gg:60161

Mutex

60742add55fe12a61a5fe6a3cf32e5c0

Attributes
  • reg_key

    60742add55fe12a61a5fe6a3cf32e5c0

  • splitter

    |'|'|

Signatures

  • njRAT/Bladabindi

    Widely used RAT written in .NET.

  • Modifies Windows Firewall 1 TTPs 1 IoCs
  • Drops startup file 6 IoCs
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 2 IoCs
  • Drops autorun.inf file 1 TTPs 4 IoCs

    Malware can abuse Windows Autorun to spread further via attached volumes.

  • Drops file in System32 directory 2 IoCs
  • Drops file in Program Files directory 2 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\start.exe
    "C:\Users\Admin\AppData\Local\Temp\start.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:2368
    • C:\Users\Admin\AppData\Local\Temp\server.exe
      "C:\Users\Admin\AppData\Local\Temp\server.exe"
      2⤵
      • Drops startup file
      • Executes dropped EXE
      • Drops autorun.inf file
      • Drops file in System32 directory
      • Drops file in Program Files directory
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: GetForegroundWindowSpam
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:2532
      • C:\Windows\SysWOW64\netsh.exe
        netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\server.exe" "server.exe" ENABLE
        3⤵
        • Modifies Windows Firewall
        PID:2716

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Roaming\app

    Filesize

    5B

    MD5

    410c3c7c3e0376e2f9b228980b58d042

    SHA1

    3aec3fa12cd88edca90fdc72a0d25cd071dc2052

    SHA256

    5c272042cede2596555e6b6f2c36857b015ccab9f34affbc63d6b000ccd08391

    SHA512

    2a1e382b045d59580271cb05b521d0c6e99772be7cd5ce38d3e5e1997a4cb9d3fe5d424a24c67383a5a2d0002d4a2194f71e1604fa9ff0199944f8cee9b26a57

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

    Filesize

    93KB

    MD5

    937286297fbc003e6a69fdc0f02ce8b0

    SHA1

    2ebd595bbb357264649f17f8b066941f05befefb

    SHA256

    35b46563f4d1ef02e7e2a315df8bbf0f8c2e49803856af0cf1418ea19fba58cf

    SHA512

    9c26792ef5102c7215afae12264e2eca6c2a0f9ed67d9b84918b720f4ca81b5fa2cdb59a28f4089e25abb93243a3d90e98d45dda9862286e2e074708eaf405f4

  • memory/2368-0-0x00000000749F0000-0x0000000074F9B000-memory.dmp

    Filesize

    5.7MB

  • memory/2368-1-0x00000000749F0000-0x0000000074F9B000-memory.dmp

    Filesize

    5.7MB

  • memory/2368-2-0x0000000000070000-0x00000000000B0000-memory.dmp

    Filesize

    256KB

  • memory/2368-14-0x00000000749F0000-0x0000000074F9B000-memory.dmp

    Filesize

    5.7MB

  • memory/2532-15-0x00000000749F0000-0x0000000074F9B000-memory.dmp

    Filesize

    5.7MB

  • memory/2532-16-0x0000000002000000-0x0000000002040000-memory.dmp

    Filesize

    256KB

  • memory/2532-17-0x00000000749F0000-0x0000000074F9B000-memory.dmp

    Filesize

    5.7MB