Overview

overview

10

Static

static

tools.exe

windows7_x64

10

tools.exe

windows10_x64

10

Analysis

  • max time kernel
    150s
  • max time network
    144s
  • platform
    windows10_x64
  • resource
    win10v20210410
  • submitted
    03-08-2021 07:03

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General

  • Target

    tools.exe

  • Size

    31KB

  • MD5

    49b8f905867aded45f1f5b3c9bd84209

  • SHA1

    0a87788428778dba567623ccc9be6825eba4b7c7

  • SHA256

    02883009e7e310bf670bff6336cb6c05c5ecfe0b40274a99b769e8fbfae19ad3

  • SHA512

    1c9d2b7bb3948ad8f3cae541602575b9eacc2a212ab0a6e7c148a24a72e36986e4c46d646244837dc3ea7c71f3db90629f7ee68ef18565d67f93d1f801308361

Score
10/10
njrathackevasionpersistencetrojan

Malware Config

Extracted

Family

njrat

Version

0.7d

Botnet

HACK

C2

43.229.151.64:5552

Mutex

6825da1e045502b22d4b02d4028214ab

Attributes
  • reg_key

    6825da1e045502b22d4b02d4028214ab

  • splitter

    Y262SUCZ4UJJ

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
  • 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 36 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\tools.exe
    "C:\Users\Admin\AppData\Local\Temp\tools.exe"
    1⤵
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3256
    • C:\Users\Admin\AppData\Local\Temp\svchost.exe
      "C:\Users\Admin\AppData\Local\Temp\svchost.exe"
      2⤵
      • Executes dropped EXE
      • Drops startup file
      • Adds Run key to start application
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:1356
      • C:\Windows\SysWOW64\netsh.exe
        netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\svchost.exe" "svchost.exe" ENABLE
        3⤵
          PID:1772

    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\svchost.exe
      MD5

      49b8f905867aded45f1f5b3c9bd84209

      SHA1

      0a87788428778dba567623ccc9be6825eba4b7c7

      SHA256

      02883009e7e310bf670bff6336cb6c05c5ecfe0b40274a99b769e8fbfae19ad3

      SHA512

      1c9d2b7bb3948ad8f3cae541602575b9eacc2a212ab0a6e7c148a24a72e36986e4c46d646244837dc3ea7c71f3db90629f7ee68ef18565d67f93d1f801308361

      Download Submit
    • C:\Users\Admin\AppData\Local\Temp\svchost.exe
      MD5

      49b8f905867aded45f1f5b3c9bd84209

      SHA1

      0a87788428778dba567623ccc9be6825eba4b7c7

      SHA256

      02883009e7e310bf670bff6336cb6c05c5ecfe0b40274a99b769e8fbfae19ad3

      SHA512

      1c9d2b7bb3948ad8f3cae541602575b9eacc2a212ab0a6e7c148a24a72e36986e4c46d646244837dc3ea7c71f3db90629f7ee68ef18565d67f93d1f801308361

      Download Submit
    • memory/1356-115-0x0000000000000000-mapping.dmp
      Download
    • memory/1356-118-0x0000000002E01000-0x0000000002E02000-memory.dmp
      Filesize

      4KB

      Download
    • memory/1772-119-0x0000000000000000-mapping.dmp
      Download
    • memory/3256-114-0x00000000025F0000-0x00000000025F1000-memory.dmp
      Filesize

      4KB

      Download