Overview

overview

10

Static

static

10

f123f3e05c...04.exe

windows7_x64

10

f123f3e05c...04.exe

windows10_x64

10

Analysis

  • max time kernel
    151s
  • max time network
    159s
  • platform
    windows10_x64
  • resource
    win10v20210408
  • submitted
    06-09-2021 06:46

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General

  • Target

    f123f3e05c72e402350046fd0f67e3820726b2cfa3f786dd38f6cac9c5841204.exe

  • Size

    37KB

  • MD5

    dcf9cc3c393993cf2d0b1d3b9e20b294

  • SHA1

    6e2a4e39c7ddfb02a54c91a7c20f7c42ed99dd23

  • SHA256

    f123f3e05c72e402350046fd0f67e3820726b2cfa3f786dd38f6cac9c5841204

  • SHA512

    fb728fb9cccae33b23ce5d3c9370d5e8af1968e920b3433b70498e47f20487960ef76e8a40aac52709b14d691e5aa3bbb4aa8d647df1af2986e065ad94cb7a73

Score
10/10
njratneonyngevasionpersistencetrojan

Malware Config

Extracted

Family

njrat

Version

im523

Botnet

Neonyng

C2

185.204.1.237:8503

Mutex

edf318264ac7ee8c6a8db0b60a665c11

Attributes
  • reg_key

    edf318264ac7ee8c6a8db0b60a665c11

  • splitter

    |'|'|

Signatures

  • njRAT/Bladabindi

    Widely used RAT written in .NET.

    trojannjrat
  • Executes dropped EXE 1 IoCs
  • Modifies Windows Firewall 1 TTPs
    evasion
  • Drops startup file 2 IoCs
  • Adds Run key to start application 2 TTPs 2 IoCs
    persistence
  • Drops file in Windows directory 3 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious use of AdjustPrivilegeToken 33 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\f123f3e05c72e402350046fd0f67e3820726b2cfa3f786dd38f6cac9c5841204.exe
    "C:\Users\Admin\AppData\Local\Temp\f123f3e05c72e402350046fd0f67e3820726b2cfa3f786dd38f6cac9c5841204.exe"
    1⤵
    • Drops file in Windows directory
    • Suspicious use of WriteProcessMemory
    PID:784
    • C:\Windows\wmn.exe
      "C:\Windows\wmn.exe"
      2⤵
      • Executes dropped EXE
      • Drops startup file
      • Adds Run key to start application
      • Drops file in Windows directory
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:2308
      • C:\Windows\SysWOW64\netsh.exe
        netsh firewall add allowedprogram "C:\Windows\wmn.exe" "wmn.exe" ENABLE
        3⤵
          PID:3940

    Network

    MITRE ATT&CK Matrix ATT&CK v6

    Initial Access

    Execution

    Persistence

    Modify Existing Service

    1
    T1031

    Registry Run Keys / Startup Folder

    1
    T1060

    Privilege Escalation

    Defense Evasion

    Modify Registry

    1
    T1112

    Credential Access

    Discovery

    System Information Discovery

    1
    T1082

    Lateral Movement

    Collection

    Exfiltration

    Command and Control

    Impact

    Replay Monitor

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    Downloads

    • C:\Windows\wmn.exe
      MD5

      dcf9cc3c393993cf2d0b1d3b9e20b294

      SHA1

      6e2a4e39c7ddfb02a54c91a7c20f7c42ed99dd23

      SHA256

      f123f3e05c72e402350046fd0f67e3820726b2cfa3f786dd38f6cac9c5841204

      SHA512

      fb728fb9cccae33b23ce5d3c9370d5e8af1968e920b3433b70498e47f20487960ef76e8a40aac52709b14d691e5aa3bbb4aa8d647df1af2986e065ad94cb7a73

      Download Submit
    • C:\Windows\wmn.exe
      MD5

      dcf9cc3c393993cf2d0b1d3b9e20b294

      SHA1

      6e2a4e39c7ddfb02a54c91a7c20f7c42ed99dd23

      SHA256

      f123f3e05c72e402350046fd0f67e3820726b2cfa3f786dd38f6cac9c5841204

      SHA512

      fb728fb9cccae33b23ce5d3c9370d5e8af1968e920b3433b70498e47f20487960ef76e8a40aac52709b14d691e5aa3bbb4aa8d647df1af2986e065ad94cb7a73

      Download Submit
    • memory/784-114-0x0000000002740000-0x0000000002741000-memory.dmp
      Filesize

      4KB

      Download
    • memory/2308-115-0x0000000000000000-mapping.dmp
      Download
    • memory/2308-118-0x00000000025D0000-0x00000000025D1000-memory.dmp
      Filesize

      4KB

      Download
    • memory/3940-119-0x0000000000000000-mapping.dmp
      Download