Analysis

  • max time kernel
    150s
  • max time network
    46s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    03-10-2022 14:20

General

  • Target

    7471608bfd253164064f1c3a81021ba971fab0a53326c9d16f25b80c8559afa5.exe

  • Size

    449KB

  • MD5

    55451c97044f34a04bdec331e8683b60

  • SHA1

    b57ed0ff7ab076e8fd365da17c43e3e41660396d

  • SHA256

    7471608bfd253164064f1c3a81021ba971fab0a53326c9d16f25b80c8559afa5

  • SHA512

    68405cea40e57541ea66ab8573ad59a28df798991b945f7645bfec62e08c735a13001529e870846107c8329ff62b7bafcbfbe15c96e0de7f3c4725f2b9473767

  • SSDEEP

    3072:exH+sKG5uRmeBJe+dcVFsIwvsex0TBGXp6a+bM8m2B+kTJEDPLTOoqDZE/IOIFKR:ep+sv9R4254+bM8m2UkeL3nQclL9

Malware Config

Extracted

Family

njrat

Version

0.6.4

Botnet

HacKed

C2

aiss123.no-ip.biz:1177

Mutex

babe8364d0b44de2ea6e4bcccd70281e

Attributes
  • reg_key

    babe8364d0b44de2ea6e4bcccd70281e

  • splitter

    |'|'|

Signatures

  • njRAT/Bladabindi

    Widely used RAT written in .NET.

  • Executes dropped EXE 2 IoCs
  • Modifies Windows Firewall 1 TTPs 1 IoCs
  • Loads dropped DLL 2 IoCs
  • Adds Run key to start application 2 TTPs 2 IoCs
  • Suspicious use of SetThreadContext 2 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious behavior: EnumeratesProcesses 8 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 20 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\7471608bfd253164064f1c3a81021ba971fab0a53326c9d16f25b80c8559afa5.exe
    "C:\Users\Admin\AppData\Local\Temp\7471608bfd253164064f1c3a81021ba971fab0a53326c9d16f25b80c8559afa5.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:736
    • C:\Users\Admin\AppData\Local\Temp\7471608bfd253164064f1c3a81021ba971fab0a53326c9d16f25b80c8559afa5.exe
      C:\Users\Admin\AppData\Local\Temp\7471608bfd253164064f1c3a81021ba971fab0a53326c9d16f25b80c8559afa5.exe
      2⤵
      • Loads dropped DLL
      • Suspicious use of WriteProcessMemory
      PID:1152
      • C:\Users\Admin\AppData\Local\Temp\server.exe
        "C:\Users\Admin\AppData\Local\Temp\server.exe"
        3⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • Suspicious use of SetThreadContext
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:2040
        • C:\Users\Admin\AppData\Local\Temp\server.exe
          C:\Users\Admin\AppData\Local\Temp\server.exe
          4⤵
          • Executes dropped EXE
          • Adds Run key to start application
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of WriteProcessMemory
          PID:2016
          • C:\Windows\SysWOW64\netsh.exe
            netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\server.exe" "server.exe" ENABLE
            5⤵
            • Modifies Windows Firewall
            PID:1060

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

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

    Filesize

    449KB

    MD5

    55451c97044f34a04bdec331e8683b60

    SHA1

    b57ed0ff7ab076e8fd365da17c43e3e41660396d

    SHA256

    7471608bfd253164064f1c3a81021ba971fab0a53326c9d16f25b80c8559afa5

    SHA512

    68405cea40e57541ea66ab8573ad59a28df798991b945f7645bfec62e08c735a13001529e870846107c8329ff62b7bafcbfbe15c96e0de7f3c4725f2b9473767

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

    Filesize

    449KB

    MD5

    55451c97044f34a04bdec331e8683b60

    SHA1

    b57ed0ff7ab076e8fd365da17c43e3e41660396d

    SHA256

    7471608bfd253164064f1c3a81021ba971fab0a53326c9d16f25b80c8559afa5

    SHA512

    68405cea40e57541ea66ab8573ad59a28df798991b945f7645bfec62e08c735a13001529e870846107c8329ff62b7bafcbfbe15c96e0de7f3c4725f2b9473767

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

    Filesize

    449KB

    MD5

    55451c97044f34a04bdec331e8683b60

    SHA1

    b57ed0ff7ab076e8fd365da17c43e3e41660396d

    SHA256

    7471608bfd253164064f1c3a81021ba971fab0a53326c9d16f25b80c8559afa5

    SHA512

    68405cea40e57541ea66ab8573ad59a28df798991b945f7645bfec62e08c735a13001529e870846107c8329ff62b7bafcbfbe15c96e0de7f3c4725f2b9473767

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

    Filesize

    449KB

    MD5

    55451c97044f34a04bdec331e8683b60

    SHA1

    b57ed0ff7ab076e8fd365da17c43e3e41660396d

    SHA256

    7471608bfd253164064f1c3a81021ba971fab0a53326c9d16f25b80c8559afa5

    SHA512

    68405cea40e57541ea66ab8573ad59a28df798991b945f7645bfec62e08c735a13001529e870846107c8329ff62b7bafcbfbe15c96e0de7f3c4725f2b9473767

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

    Filesize

    449KB

    MD5

    55451c97044f34a04bdec331e8683b60

    SHA1

    b57ed0ff7ab076e8fd365da17c43e3e41660396d

    SHA256

    7471608bfd253164064f1c3a81021ba971fab0a53326c9d16f25b80c8559afa5

    SHA512

    68405cea40e57541ea66ab8573ad59a28df798991b945f7645bfec62e08c735a13001529e870846107c8329ff62b7bafcbfbe15c96e0de7f3c4725f2b9473767

  • memory/736-55-0x0000000076201000-0x0000000076203000-memory.dmp

    Filesize

    8KB

  • memory/736-56-0x0000000000450000-0x000000000045A000-memory.dmp

    Filesize

    40KB

  • memory/736-54-0x0000000000980000-0x00000000009F6000-memory.dmp

    Filesize

    472KB

  • memory/736-76-0x0000000004185000-0x0000000004196000-memory.dmp

    Filesize

    68KB

  • memory/1060-80-0x0000000000000000-mapping.dmp

  • memory/1152-58-0x0000000000408AFE-mapping.dmp

  • memory/1152-62-0x0000000000400000-0x000000000040E000-memory.dmp

    Filesize

    56KB

  • memory/1152-60-0x0000000000400000-0x000000000040E000-memory.dmp

    Filesize

    56KB

  • memory/1152-57-0x0000000000400000-0x000000000040E000-memory.dmp

    Filesize

    56KB

  • memory/2016-72-0x0000000000408AFE-mapping.dmp

  • memory/2016-83-0x0000000002385000-0x0000000002396000-memory.dmp

    Filesize

    68KB

  • memory/2040-68-0x0000000000160000-0x00000000001D6000-memory.dmp

    Filesize

    472KB

  • memory/2040-65-0x0000000000000000-mapping.dmp

  • memory/2040-78-0x0000000004AD5000-0x0000000004AE6000-memory.dmp

    Filesize

    68KB