Overview

overview

10

Static

static

10

56a93141da...b4.exe

windows7-x64

10

56a93141da...b4.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    192s
  • max time network
    207s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220721-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220721-enlocale:en-usos:windows10-2004-x64system
  • submitted
    30-07-2022 22:29

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General

  • Target

    56a93141da5e548bbb1b51d75c1c6eb4.exe

  • Size

    37KB

  • MD5

    56a93141da5e548bbb1b51d75c1c6eb4

  • SHA1

    220b3777cd9a82fb7ec3df41fe5671afbbff48e5

  • SHA256

    e9bf3fc00ed911d03f986e4ee8bc199835d75b2772c4089351a3e81f6a723558

  • SHA512

    48829aed487046290e28ab2e1e6db0f2084721e7fbf4766d148f17531dcca5fbc0e63cfdfbd9d9574a7c551320eb488e130be2f2776138abde7901bed5227abd

Score
10/10
njrathackedevasionpersistencetrojan

Malware Config

Extracted

Family

njrat

Version

im523

Botnet

HacKed

C2

6.tcp.eu.ngrok.io:12180

Mutex

27a24c123d1e61d690116d6e2ecb6791

Attributes
  • reg_key

    27a24c123d1e61d690116d6e2ecb6791

  • splitter

    |'|'|

Signatures

  • njRAT/Bladabindi

    Widely used RAT written in .NET.

    trojannjrat
  • Executes dropped EXE 1 IoCs
  • Modifies Windows Firewall 1 TTPs 1 IoCs
    evasion
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • 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 behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 27 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\56a93141da5e548bbb1b51d75c1c6eb4.exe
    "C:\Users\Admin\AppData\Local\Temp\56a93141da5e548bbb1b51d75c1c6eb4.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:4316
    • C:\Users\Admin\server.exe
      "C:\Users\Admin\server.exe"
      2⤵
      • Executes dropped EXE
      • Drops startup file
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: GetForegroundWindowSpam
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:2092
      • C:\Windows\SysWOW64\netsh.exe
        netsh firewall add allowedprogram "C:\Users\Admin\server.exe" "server.exe" ENABLE
        3⤵
        • Modifies Windows Firewall
        PID:1088

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

Query Registry

1
T1012

System Information Discovery

2
T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

  • C:\Users\Admin\server.exe
    Filesize

    37KB

    MD5

    56a93141da5e548bbb1b51d75c1c6eb4

    SHA1

    220b3777cd9a82fb7ec3df41fe5671afbbff48e5

    SHA256

    e9bf3fc00ed911d03f986e4ee8bc199835d75b2772c4089351a3e81f6a723558

    SHA512

    48829aed487046290e28ab2e1e6db0f2084721e7fbf4766d148f17531dcca5fbc0e63cfdfbd9d9574a7c551320eb488e130be2f2776138abde7901bed5227abd

    Download Submit
  • C:\Users\Admin\server.exe
    Filesize

    37KB

    MD5

    56a93141da5e548bbb1b51d75c1c6eb4

    SHA1

    220b3777cd9a82fb7ec3df41fe5671afbbff48e5

    SHA256

    e9bf3fc00ed911d03f986e4ee8bc199835d75b2772c4089351a3e81f6a723558

    SHA512

    48829aed487046290e28ab2e1e6db0f2084721e7fbf4766d148f17531dcca5fbc0e63cfdfbd9d9574a7c551320eb488e130be2f2776138abde7901bed5227abd

    Download Submit
  • memory/1088-139-0x0000000000000000-mapping.dmp
    Download
  • memory/2092-133-0x0000000000000000-mapping.dmp
    Download
  • memory/2092-137-0x0000000074EF0000-0x00000000754A1000-memory.dmp
    Filesize

    5.7MB

    Download
  • memory/2092-138-0x0000000074EF0000-0x00000000754A1000-memory.dmp
    Filesize

    5.7MB

    Download
  • memory/4316-131-0x0000000074EF0000-0x00000000754A1000-memory.dmp
    Filesize

    5.7MB

    Download
  • memory/4316-132-0x0000000074EF0000-0x00000000754A1000-memory.dmp
    Filesize

    5.7MB

    Download
  • memory/4316-136-0x0000000074EF0000-0x00000000754A1000-memory.dmp
    Filesize

    5.7MB

    Download