Overview

overview

10

Static

static

10

383a6c0074...6e.exe

windows7_x64

10

383a6c0074...6e.exe

windows10-2004_x64

10

Analysis

  • max time kernel
    173s
  • max time network
    195s
  • platform
    windows7_x64
  • resource
    win7-20220414-en
  • submitted
    20-05-2022 22:49

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General

  • Target

    383a6c007466499cfa142ff0c9bbc3ba64b330e515af20c5bb92c096b80f2e6e.exe

  • Size

    31KB

  • MD5

    a2b35164fb4b92f7ef0065532ab82e78

  • SHA1

    603ba7b5558360f67e2b910d9cff37124b2d7efb

  • SHA256

    383a6c007466499cfa142ff0c9bbc3ba64b330e515af20c5bb92c096b80f2e6e

  • SHA512

    e786a41d5aba07d633a7b31f3cdac001da0412dc8236fa8baacb7019a9270c9e21308601caaeada50a02efa9db81da785972fc8781187d55f0ba05f54c72ee81

Score
10/10
njratарсенийevasionpersistencesuricatatrojan

Malware Config

Extracted

Family

njrat

Version

0.7d

Botnet

Арсений

C2

0.tcp.ngrok.io:19842

Mutex

ee1e6669233e31211cc8a553e5cd1041

Attributes
  • reg_key

    ee1e6669233e31211cc8a553e5cd1041

  • splitter

    Y262SUCZ4UJJ

Signatures

  • njRAT/Bladabindi

    Widely used RAT written in .NET.

    trojannjrat
  • suricata: ET MALWARE Generic njRAT/Bladabindi CnC Activity (ll)

    suricata: ET MALWARE Generic njRAT/Bladabindi CnC Activity (ll)

    suricata
  • Executes dropped EXE 1 IoCs
  • Modifies Windows Firewall 1 TTPs
    evasion
  • Drops startup file 2 IoCs
  • Loads dropped DLL 1 IoCs
  • Adds Run key to start application 2 TTPs 2 IoCs
    persistence
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 20 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\383a6c007466499cfa142ff0c9bbc3ba64b330e515af20c5bb92c096b80f2e6e.exe
    "C:\Users\Admin\AppData\Local\Temp\383a6c007466499cfa142ff0c9bbc3ba64b330e515af20c5bb92c096b80f2e6e.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1504
    • C:\Users\Admin\AppData\Local\Temp\WindowsServices.exe
      "C:\Users\Admin\AppData\Local\Temp\WindowsServices.exe"
      2⤵
      • Executes dropped EXE
      • Drops startup file
      • Adds Run key to start application
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:1004
      • C:\Windows\SysWOW64\netsh.exe
        netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\WindowsServices.exe" "WindowsServices.exe" ENABLE
        3⤵
          PID:1360

    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:\Users\Admin\AppData\Local\Temp\WindowsServices.exe
      Filesize

      31KB

      MD5

      a2b35164fb4b92f7ef0065532ab82e78

      SHA1

      603ba7b5558360f67e2b910d9cff37124b2d7efb

      SHA256

      383a6c007466499cfa142ff0c9bbc3ba64b330e515af20c5bb92c096b80f2e6e

      SHA512

      e786a41d5aba07d633a7b31f3cdac001da0412dc8236fa8baacb7019a9270c9e21308601caaeada50a02efa9db81da785972fc8781187d55f0ba05f54c72ee81

      Download Submit
    • C:\Users\Admin\AppData\Local\Temp\WindowsServices.exe
      Filesize

      31KB

      MD5

      a2b35164fb4b92f7ef0065532ab82e78

      SHA1

      603ba7b5558360f67e2b910d9cff37124b2d7efb

      SHA256

      383a6c007466499cfa142ff0c9bbc3ba64b330e515af20c5bb92c096b80f2e6e

      SHA512

      e786a41d5aba07d633a7b31f3cdac001da0412dc8236fa8baacb7019a9270c9e21308601caaeada50a02efa9db81da785972fc8781187d55f0ba05f54c72ee81

      Download Submit
    • \Users\Admin\AppData\Local\Temp\WindowsServices.exe
      Filesize

      31KB

      MD5

      a2b35164fb4b92f7ef0065532ab82e78

      SHA1

      603ba7b5558360f67e2b910d9cff37124b2d7efb

      SHA256

      383a6c007466499cfa142ff0c9bbc3ba64b330e515af20c5bb92c096b80f2e6e

      SHA512

      e786a41d5aba07d633a7b31f3cdac001da0412dc8236fa8baacb7019a9270c9e21308601caaeada50a02efa9db81da785972fc8781187d55f0ba05f54c72ee81

      Download Submit
    • memory/1004-57-0x0000000000000000-mapping.dmp
      Download
    • memory/1004-61-0x0000000074690000-0x0000000074C3B000-memory.dmp
      Filesize

      5.7MB

      Download
    • memory/1360-62-0x0000000000000000-mapping.dmp
      Download
    • memory/1504-54-0x0000000075EF1000-0x0000000075EF3000-memory.dmp
      Filesize

      8KB

      Download
    • memory/1504-55-0x0000000074690000-0x0000000074C3B000-memory.dmp
      Filesize

      5.7MB

      Download