Analysis

  • max time kernel
    150s
  • max time network
    92s
  • platform
    windows7_x64
  • resource
    win7-20221111-en
  • resource tags

    arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
  • submitted
    23-11-2022 09:40

General

  • Target

    a32d3d621eb984c0b1e1118d68affb540f93437ebe72aa617ef299b139ceb95a.exe

  • Size

    110KB

  • MD5

    063c9b17cb6924d0f6397d6fb964a746

  • SHA1

    4b6731a10673ad11fdfd6e7c0e0fd43ed6741120

  • SHA256

    a32d3d621eb984c0b1e1118d68affb540f93437ebe72aa617ef299b139ceb95a

  • SHA512

    5222c6d70bb28870189ad3748c150cca56817d09cfcbaae2e96bd78e3b59f035e18dc0138574e6b8ad48fe35ef8877abdc1f9b0eb52753323e68301c3732a3bc

  • SSDEEP

    3072:ipYuA29RHtoahfwte+7M25WkS08i1PdPa4pa:g9RGahSMTL8z0

Malware Config

Extracted

Family

njrat

Version

0.6.4

Botnet

oday's friend

C2

njrat2k.no-ip.biz:1177

Mutex

9e16c401f72f35f8d08e45d698def37c

Attributes
  • reg_key

    9e16c401f72f35f8d08e45d698def37c

  • splitter

    |'|'|

Signatures

  • njRAT/Bladabindi

    Widely used RAT written in .NET.

  • Executes dropped EXE 1 IoCs
  • Modifies Windows Firewall 1 TTPs 1 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.

  • Suspicious behavior: EnumeratesProcesses 20 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\a32d3d621eb984c0b1e1118d68affb540f93437ebe72aa617ef299b139ceb95a.exe
    "C:\Users\Admin\AppData\Local\Temp\a32d3d621eb984c0b1e1118d68affb540f93437ebe72aa617ef299b139ceb95a.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:848
    • C:\Users\Admin\AppData\Local\Temp\photo.exe
      "C:\Users\Admin\AppData\Local\Temp\photo.exe"
      2⤵
      • Executes dropped EXE
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:1256
      • C:\Windows\SysWOW64\netsh.exe
        netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\photo.exe" "photo.exe" ENABLE
        3⤵
        • Modifies Windows Firewall
        PID:588

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads

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

    Filesize

    110KB

    MD5

    063c9b17cb6924d0f6397d6fb964a746

    SHA1

    4b6731a10673ad11fdfd6e7c0e0fd43ed6741120

    SHA256

    a32d3d621eb984c0b1e1118d68affb540f93437ebe72aa617ef299b139ceb95a

    SHA512

    5222c6d70bb28870189ad3748c150cca56817d09cfcbaae2e96bd78e3b59f035e18dc0138574e6b8ad48fe35ef8877abdc1f9b0eb52753323e68301c3732a3bc

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

    Filesize

    110KB

    MD5

    063c9b17cb6924d0f6397d6fb964a746

    SHA1

    4b6731a10673ad11fdfd6e7c0e0fd43ed6741120

    SHA256

    a32d3d621eb984c0b1e1118d68affb540f93437ebe72aa617ef299b139ceb95a

    SHA512

    5222c6d70bb28870189ad3748c150cca56817d09cfcbaae2e96bd78e3b59f035e18dc0138574e6b8ad48fe35ef8877abdc1f9b0eb52753323e68301c3732a3bc

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

    Filesize

    110KB

    MD5

    063c9b17cb6924d0f6397d6fb964a746

    SHA1

    4b6731a10673ad11fdfd6e7c0e0fd43ed6741120

    SHA256

    a32d3d621eb984c0b1e1118d68affb540f93437ebe72aa617ef299b139ceb95a

    SHA512

    5222c6d70bb28870189ad3748c150cca56817d09cfcbaae2e96bd78e3b59f035e18dc0138574e6b8ad48fe35ef8877abdc1f9b0eb52753323e68301c3732a3bc

  • memory/588-62-0x0000000000000000-mapping.dmp

  • memory/848-54-0x00000000766F1000-0x00000000766F3000-memory.dmp

    Filesize

    8KB

  • memory/848-57-0x0000000075000000-0x00000000755AB000-memory.dmp

    Filesize

    5.7MB

  • memory/848-61-0x0000000075000000-0x00000000755AB000-memory.dmp

    Filesize

    5.7MB

  • memory/1256-56-0x0000000000000000-mapping.dmp

  • memory/1256-63-0x0000000075000000-0x00000000755AB000-memory.dmp

    Filesize

    5.7MB

  • memory/1256-65-0x0000000075000000-0x00000000755AB000-memory.dmp

    Filesize

    5.7MB