Analysis

  • max time kernel
    156s
  • max time network
    152s
  • platform
    windows7_x64
  • resource
    win7-20231215-en
  • resource tags

    arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
  • submitted
    14-02-2024 03:25

General

  • Target

    2fa422d5cd19a34ae3e8d01127e95db53e7979fe43b6f1aa12a9cf51f33eb955.exe

  • Size

    1.1MB

  • MD5

    b0e6f24c119a66f4b9ce908068d3976a

  • SHA1

    d021cfc658c963bddb74668a0148cfd5655f06ad

  • SHA256

    2fa422d5cd19a34ae3e8d01127e95db53e7979fe43b6f1aa12a9cf51f33eb955

  • SHA512

    d2ea0acff0cdf669d41b669fc81a5c889b0f17164d183ba32aa67ba93e95b9b90fcdad1ddd88462dbccf1cebb620f37f2c37e0f2f6615a9432dc5096772a5d37

  • SSDEEP

    24576:gfOjaRF0g0tYUt6bSs/6gQynGQfuY88Rq0w:TaRj0C4gvnGQfL8Kq

Malware Config

Extracted

Family

njrat

Version

im523

Botnet

MCVzlom

C2

194.38.20.230:6666

Mutex

9f35c64e8328a96f5f95063ef2b234ce

Attributes
  • reg_key

    9f35c64e8328a96f5f95063ef2b234ce

  • splitter

    |'|'|

Signatures

  • njRAT/Bladabindi

    Widely used RAT written in .NET.

  • Modifies Windows Firewall 2 TTPs 1 IoCs
  • Drops startup file 2 IoCs
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 1 IoCs
  • Adds Run key to start application 2 TTPs 2 IoCs
  • Drops autorun.inf file 1 TTPs 5 IoCs

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

  • Suspicious use of NtSetInformationThreadHideFromDebugger 17 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Kills process with taskkill 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 36 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 12 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2fa422d5cd19a34ae3e8d01127e95db53e7979fe43b6f1aa12a9cf51f33eb955.exe
    "C:\Users\Admin\AppData\Local\Temp\2fa422d5cd19a34ae3e8d01127e95db53e7979fe43b6f1aa12a9cf51f33eb955.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:2196
    • C:\Users\Admin\AppData\Roaming\svchost.exe
      "C:\Users\Admin\AppData\Roaming\svchost.exe"
      2⤵
      • Drops startup file
      • Executes dropped EXE
      • Adds Run key to start application
      • Drops autorun.inf file
      • Suspicious use of NtSetInformationThreadHideFromDebugger
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: GetForegroundWindowSpam
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:2780
      • C:\Windows\SysWOW64\netsh.exe
        netsh firewall add allowedprogram "C:\Users\Admin\AppData\Roaming\svchost.exe" "svchost.exe" ENABLE
        3⤵
        • Modifies Windows Firewall
        PID:2716
      • C:\Windows\SysWOW64\taskkill.exe
        taskkill /F /IM Avastsvc.exe
        3⤵
        • Kills process with taskkill
        • Suspicious use of AdjustPrivilegeToken
        PID:1632

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

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

    Filesize

    1.1MB

    MD5

    b0e6f24c119a66f4b9ce908068d3976a

    SHA1

    d021cfc658c963bddb74668a0148cfd5655f06ad

    SHA256

    2fa422d5cd19a34ae3e8d01127e95db53e7979fe43b6f1aa12a9cf51f33eb955

    SHA512

    d2ea0acff0cdf669d41b669fc81a5c889b0f17164d183ba32aa67ba93e95b9b90fcdad1ddd88462dbccf1cebb620f37f2c37e0f2f6615a9432dc5096772a5d37

  • memory/2196-17-0x0000000001180000-0x00000000014F8000-memory.dmp

    Filesize

    3.5MB

  • memory/2196-1-0x0000000073E40000-0x00000000743EB000-memory.dmp

    Filesize

    5.7MB

  • memory/2196-2-0x0000000073E40000-0x00000000743EB000-memory.dmp

    Filesize

    5.7MB

  • memory/2196-3-0x00000000002E0000-0x0000000000320000-memory.dmp

    Filesize

    256KB

  • memory/2196-11-0x0000000005B90000-0x0000000005F08000-memory.dmp

    Filesize

    3.5MB

  • memory/2196-0-0x0000000001180000-0x00000000014F8000-memory.dmp

    Filesize

    3.5MB

  • memory/2196-18-0x0000000073E40000-0x00000000743EB000-memory.dmp

    Filesize

    5.7MB

  • memory/2780-12-0x00000000001D0000-0x0000000000548000-memory.dmp

    Filesize

    3.5MB

  • memory/2780-15-0x0000000073E40000-0x00000000743EB000-memory.dmp

    Filesize

    5.7MB

  • memory/2780-14-0x0000000073E40000-0x00000000743EB000-memory.dmp

    Filesize

    5.7MB

  • memory/2780-13-0x0000000002DC0000-0x0000000002E00000-memory.dmp

    Filesize

    256KB

  • memory/2780-30-0x0000000073E40000-0x00000000743EB000-memory.dmp

    Filesize

    5.7MB