Analysis

  • max time kernel
    149s
  • max time network
    52s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    02-10-2022 11:56

General

  • Target

    e8b5c4f51bcd44d478a94b80ab6a9a5a45eef78193189169b67010f43f320984.exe

  • Size

    29KB

  • MD5

    72602448b0926ef7fc368b4859e913e0

  • SHA1

    6452052283943b1a2044309712ee79ebde66ca91

  • SHA256

    e8b5c4f51bcd44d478a94b80ab6a9a5a45eef78193189169b67010f43f320984

  • SHA512

    bbb1d854df67ad981c71f093e6b6ecdd76feea92309230f05d32b9097239fcd91fee7af1ac9da0fd2d6216a92dea0f495ee8ccd3e3d93ad699871e5fdf5e0f19

  • SSDEEP

    384:VFUHEBl7p3hUw2s7bD55gEKemqDSqre/IDGBsbh0w4wlAokw9OhgOL1vYRGOZzn9:V57bUw2C3kEcqNreHBKh0p29SgRx/

Malware Config

Extracted

Family

njrat

Version

0.6.4

Botnet

HacKed

C2

zikorami.no-ip.biz:1177

Mutex

5cd8f17f4086744065eb0992a09e05a2

Attributes
  • reg_key

    5cd8f17f4086744065eb0992a09e05a2

  • splitter

    |'|'|

Signatures

  • njRAT/Bladabindi

    Widely used RAT written in .NET.

  • Executes dropped EXE 1 IoCs
  • Modifies Windows Firewall 1 TTPs 1 IoCs
  • Drops startup file 2 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 18 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\e8b5c4f51bcd44d478a94b80ab6a9a5a45eef78193189169b67010f43f320984.exe
    "C:\Users\Admin\AppData\Local\Temp\e8b5c4f51bcd44d478a94b80ab6a9a5a45eef78193189169b67010f43f320984.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:1488
    • C:\Users\Admin\AppData\Local\Temp\Trojan.exe
      "C:\Users\Admin\AppData\Local\Temp\Trojan.exe"
      2⤵
      • Executes dropped EXE
      • Drops startup file
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:1072
      • C:\Windows\SysWOW64\netsh.exe
        netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\Trojan.exe" "Trojan.exe" ENABLE
        3⤵
        • Modifies Windows Firewall
        PID:1724

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads

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

    Filesize

    29KB

    MD5

    72602448b0926ef7fc368b4859e913e0

    SHA1

    6452052283943b1a2044309712ee79ebde66ca91

    SHA256

    e8b5c4f51bcd44d478a94b80ab6a9a5a45eef78193189169b67010f43f320984

    SHA512

    bbb1d854df67ad981c71f093e6b6ecdd76feea92309230f05d32b9097239fcd91fee7af1ac9da0fd2d6216a92dea0f495ee8ccd3e3d93ad699871e5fdf5e0f19

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

    Filesize

    29KB

    MD5

    72602448b0926ef7fc368b4859e913e0

    SHA1

    6452052283943b1a2044309712ee79ebde66ca91

    SHA256

    e8b5c4f51bcd44d478a94b80ab6a9a5a45eef78193189169b67010f43f320984

    SHA512

    bbb1d854df67ad981c71f093e6b6ecdd76feea92309230f05d32b9097239fcd91fee7af1ac9da0fd2d6216a92dea0f495ee8ccd3e3d93ad699871e5fdf5e0f19

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

    Filesize

    29KB

    MD5

    72602448b0926ef7fc368b4859e913e0

    SHA1

    6452052283943b1a2044309712ee79ebde66ca91

    SHA256

    e8b5c4f51bcd44d478a94b80ab6a9a5a45eef78193189169b67010f43f320984

    SHA512

    bbb1d854df67ad981c71f093e6b6ecdd76feea92309230f05d32b9097239fcd91fee7af1ac9da0fd2d6216a92dea0f495ee8ccd3e3d93ad699871e5fdf5e0f19

  • memory/1072-56-0x0000000000000000-mapping.dmp

  • memory/1072-62-0x0000000074E70000-0x000000007541B000-memory.dmp

    Filesize

    5.7MB

  • memory/1072-64-0x0000000074E70000-0x000000007541B000-memory.dmp

    Filesize

    5.7MB

  • memory/1488-54-0x0000000076DC1000-0x0000000076DC3000-memory.dmp

    Filesize

    8KB

  • memory/1488-61-0x0000000074E70000-0x000000007541B000-memory.dmp

    Filesize

    5.7MB

  • memory/1724-60-0x0000000000000000-mapping.dmp