Analysis

  • max time kernel
    120s
  • max time network
    117s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    16-12-2024 01:59

General

  • Target

    78f87814abbd390bd7b19d7a5acf1fe238515c8568da2627395e7801c46ee682N.exe

  • Size

    103KB

  • MD5

    114b54b965fc5cbabb840eae3ec364d0

  • SHA1

    3d93b3b8b92576a965694bd9c4b3aa4ad7eb2665

  • SHA256

    78f87814abbd390bd7b19d7a5acf1fe238515c8568da2627395e7801c46ee682

  • SHA512

    f35d8b27a7f60d412f37debafef33f21c656fe1883db342906571b0035387a634e45ade7df54f45b90ee581c0133f61f1e8c4e0aee07cc122648bd3d4d0db79d

  • SSDEEP

    3072:U21gmmuo45f724vG63Q77NxYePeGk+xS:zjmuo4R7HZQ7JKKeT

Malware Config

Extracted

Family

njrat

Version

0.6.4

Botnet

HacKed

C2

g2016.no-ip.biz:1100

Mutex

6c3b7eded99a7f02b8ee3a6ee1c3ec2f

Attributes
  • reg_key

    6c3b7eded99a7f02b8ee3a6ee1c3ec2f

  • splitter

    |'|'|

Signatures

  • Njrat family
  • njRAT/Bladabindi

    Widely used RAT written in .NET.

  • Modifies Windows Firewall 2 TTPs 1 IoCs
  • Executes dropped EXE 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).

  • Event Triggered Execution: Netsh Helper DLL 1 TTPs 3 IoCs

    Netsh.exe (also referred to as Netshell) is a command-line scripting utility used to interact with the network configuration of a system.

  • Suspicious behavior: EnumeratesProcesses 26 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\78f87814abbd390bd7b19d7a5acf1fe238515c8568da2627395e7801c46ee682N.exe
    "C:\Users\Admin\AppData\Local\Temp\78f87814abbd390bd7b19d7a5acf1fe238515c8568da2627395e7801c46ee682N.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1732
    • C:\Users\Admin\AppData\Local\Temp\Tr.exe
      "C:\Users\Admin\AppData\Local\Temp\Tr.exe"
      2⤵
      • Executes dropped EXE
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:1052
      • C:\Windows\system32\netsh.exe
        netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\Tr.exe" "Tr.exe" ENABLE
        3⤵
        • Modifies Windows Firewall
        • Event Triggered Execution: Netsh Helper DLL
        PID:2388

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    103KB

    MD5

    114b54b965fc5cbabb840eae3ec364d0

    SHA1

    3d93b3b8b92576a965694bd9c4b3aa4ad7eb2665

    SHA256

    78f87814abbd390bd7b19d7a5acf1fe238515c8568da2627395e7801c46ee682

    SHA512

    f35d8b27a7f60d412f37debafef33f21c656fe1883db342906571b0035387a634e45ade7df54f45b90ee581c0133f61f1e8c4e0aee07cc122648bd3d4d0db79d

  • memory/1052-10-0x000007FEF5DE0000-0x000007FEF67CC000-memory.dmp

    Filesize

    9.9MB

  • memory/1052-9-0x000007FEF5DE0000-0x000007FEF67CC000-memory.dmp

    Filesize

    9.9MB

  • memory/1052-8-0x00000000008F0000-0x0000000000912000-memory.dmp

    Filesize

    136KB

  • memory/1052-11-0x000007FEF5DE0000-0x000007FEF67CC000-memory.dmp

    Filesize

    9.9MB

  • memory/1052-12-0x000007FEF5DE0000-0x000007FEF67CC000-memory.dmp

    Filesize

    9.9MB

  • memory/1732-2-0x0000000000370000-0x000000000037E000-memory.dmp

    Filesize

    56KB

  • memory/1732-1-0x0000000000090000-0x00000000000B2000-memory.dmp

    Filesize

    136KB

  • memory/1732-0-0x000007FEF5DE3000-0x000007FEF5DE4000-memory.dmp

    Filesize

    4KB