Analysis

  • max time kernel
    96s
  • max time network
    103s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-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
  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\a32d3d621eb984c0b1e1118d68affb540f93437ebe72aa617ef299b139ceb95a.exe
    "C:\Users\Admin\AppData\Local\Temp\a32d3d621eb984c0b1e1118d68affb540f93437ebe72aa617ef299b139ceb95a.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:2288
    • C:\Users\Admin\AppData\Local\Temp\photo.exe
      "C:\Users\Admin\AppData\Local\Temp\photo.exe"
      2⤵
      • Executes dropped EXE
      PID:932

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

  • memory/932-133-0x0000000000000000-mapping.dmp

  • memory/932-136-0x0000000075470000-0x0000000075A21000-memory.dmp

    Filesize

    5.7MB

  • memory/932-138-0x0000000075470000-0x0000000075A21000-memory.dmp

    Filesize

    5.7MB

  • memory/2288-132-0x0000000075470000-0x0000000075A21000-memory.dmp

    Filesize

    5.7MB

  • memory/2288-137-0x0000000075470000-0x0000000075A21000-memory.dmp

    Filesize

    5.7MB