Resubmissions

07-11-2024 16:29

241107-tzeqvawbpe 10

07-11-2024 06:54

241107-hpd6sazqap 10

Analysis

  • max time kernel
    149s
  • max time network
    150s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    07-11-2024 16:29

General

  • Target

    61bb2c746d218b86b3b9e069899e4ec1bf16a61206e66bfda7badf06915456fd.exe

  • Size

    1.4MB

  • MD5

    c58f3effb9efb892109332a676aae546

  • SHA1

    c1dced7e3e3b49f23cc0125589cc5b29d4055924

  • SHA256

    61bb2c746d218b86b3b9e069899e4ec1bf16a61206e66bfda7badf06915456fd

  • SHA512

    9c9329df603ad34b10437fc6313d61d273b603996a82f88e0d57af9e50ea86bb0cbb2134a3d4905b40fd73cd40222235739f4140cf4de19a3bea352af947adec

  • SSDEEP

    24576:a27mrhic6gvYbAKsy5Ulh3iXWl9557sK6X3ZO0GinMSvTNWfshnGmg/ykTPnewlm:anrhr/vAcWKv6X3o0GQN0s/g/ybDT

Malware Config

Extracted

Family

njrat

Version

0.7d

Botnet

HacKed

C2

8.tcp.ngrok.io:12342

Mutex

602fdca88735a1a1338352d8ae49ef80

Attributes
  • reg_key

    602fdca88735a1a1338352d8ae49ef80

  • splitter

    |'|'|

Signatures

  • Njrat family
  • njRAT/Bladabindi

    Widely used RAT written in .NET.

  • Modifies Windows Firewall 2 TTPs 1 IoCs
  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 2 IoCs
  • Reads user/profile data of web browsers 3 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Adds Run key to start application 2 TTPs 2 IoCs
  • Legitimate hosting services abused for malware hosting/C2 1 TTPs 3 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Event Triggered Execution: Netsh Helper DLL 1 TTPs 3 IoCs

    Netsh.exe (also referred to as Netshell) is a command-line scripting utility used to interact with the network configuration of a system.

  • Program crash 1 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 4 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 6 IoCs
  • Suspicious use of AdjustPrivilegeToken 36 IoCs
  • Suspicious use of WriteProcessMemory 16 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\61bb2c746d218b86b3b9e069899e4ec1bf16a61206e66bfda7badf06915456fd.exe
    "C:\Users\Admin\AppData\Local\Temp\61bb2c746d218b86b3b9e069899e4ec1bf16a61206e66bfda7badf06915456fd.exe"
    1⤵
    • Loads dropped DLL
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2312
    • C:\Users\Admin\AppData\Local\Temp\XTdl5rknHl.exe
      "C:\Users\Admin\AppData\Local\Temp\XTdl5rknHl.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:2896
      • C:\Users\Admin\AppData\Local\Temp\server.exe
        "C:\Users\Admin\AppData\Local\Temp\server.exe"
        3⤵
        • Executes dropped EXE
        • Adds Run key to start application
        • System Location Discovery: System Language Discovery
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:2776
        • C:\Windows\SysWOW64\netsh.exe
          netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\server.exe" "server.exe" ENABLE
          4⤵
          • Modifies Windows Firewall
          • Event Triggered Execution: Netsh Helper DLL
          • System Location Discovery: System Language Discovery
          PID:2068
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2312 -s 1304
      2⤵
      • Program crash
      PID:2944

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • \Users\Admin\AppData\Local\Temp\XTdl5rknHl.exe

    Filesize

    23KB

    MD5

    059302e210a714b3cebd8c6400d7d12e

    SHA1

    eed4e297cdffff9815bf456e4f237b699b33de6d

    SHA256

    7b49bca136184f784b52ca6499108288da623944a0a97eff19e3318364a0a999

    SHA512

    5ae9f86dc384be6d7acb085132846ef690d0e069f43837e8e9edb89558bfb8c3a5232e47332df10b79ee8df2e4e84c509386c5fbb9f8b5a7659ff8cacb1a4dcc

  • memory/2312-6-0x0000000000FB0000-0x000000000102C000-memory.dmp

    Filesize

    496KB

  • memory/2312-17-0x00000000744BE000-0x00000000744BF000-memory.dmp

    Filesize

    4KB

  • memory/2312-3-0x00000000744B0000-0x0000000074B9E000-memory.dmp

    Filesize

    6.9MB

  • memory/2312-5-0x00000000744B0000-0x0000000074B9E000-memory.dmp

    Filesize

    6.9MB

  • memory/2312-4-0x00000000744B0000-0x0000000074B9E000-memory.dmp

    Filesize

    6.9MB

  • memory/2312-0-0x00000000744BE000-0x00000000744BF000-memory.dmp

    Filesize

    4KB

  • memory/2312-1-0x0000000001300000-0x00000000015A2000-memory.dmp

    Filesize

    2.6MB

  • memory/2312-19-0x00000000744B0000-0x0000000074B9E000-memory.dmp

    Filesize

    6.9MB

  • memory/2312-18-0x00000000744B0000-0x0000000074B9E000-memory.dmp

    Filesize

    6.9MB

  • memory/2312-2-0x00000000744B0000-0x0000000074B9E000-memory.dmp

    Filesize

    6.9MB

  • memory/2896-16-0x000000006FB30000-0x00000000700DB000-memory.dmp

    Filesize

    5.7MB

  • memory/2896-15-0x000000006FB30000-0x00000000700DB000-memory.dmp

    Filesize

    5.7MB

  • memory/2896-14-0x000000006FB31000-0x000000006FB32000-memory.dmp

    Filesize

    4KB

  • memory/2896-27-0x000000006FB30000-0x00000000700DB000-memory.dmp

    Filesize

    5.7MB