Overview

overview

10

Static

static

3

31D526F2A0...1F.exe

windows7-x64

10

31D526F2A0...1F.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    150s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240221-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240221-enlocale:en-usos:windows10-2004-x64system
  • submitted
    23-02-2024 20:36

Sharing

Copy URL
Twitter E-mail
Report Analysis Logs

General

  • Target

    31D526F2A0555E904ED31EC797E8151F.exe

  • Size

    1.1MB

  • MD5

    31d526f2a0555e904ed31ec797e8151f

  • SHA1

    742d84337a209d151eace5f6ab3aea0f3c1fac16

  • SHA256

    6d4056dce7464a436ab92a94702d79b48f861daa8f97d29c30b26c3461f3f0a1

  • SHA512

    99027eec040a091523060267406686512ed26f0d2ae720449e56fff59115cd31b4d760dab114ea6d2f7e976161ac1a664dc9eafc16c9f8a2c89a1afa7e1133a9

  • SSDEEP

    24576:1ffWAsmm6oDJksQSeW0maMjxc7RKm95rkwbfPH1CKUXpdIDFoas9:1ffWGoasOdM+gm95gOfPHnb+aC

Score
10/10
njrat2evasionpersistencetrojan

Malware Config

Extracted

Family

njrat

Version

im523

Botnet

2

C2

than-electoral.gl.at.ply.gg:36364

Mutex

0c8d792f9c21b154330684f6c50ab800

Attributes
  • reg_key

    0c8d792f9c21b154330684f6c50ab800

  • splitter

    |'|'|

Signatures

  • njRAT/Bladabindi

    Widely used RAT written in .NET.

    trojannjrat
  • Modifies Windows Firewall 2 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
  • Executes dropped EXE 1 IoCs
  • Adds Run key to start application 2 TTPs 2 IoCs
    persistence
  • Drops autorun.inf file 1 TTPs 5 IoCs

    Malware can abuse Windows Autorun to spread further via attached volumes.

  • Suspicious use of NtSetInformationThreadHideFromDebugger 16 IoCs
  • Drops file in Windows directory 3 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 35 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\31D526F2A0555E904ED31EC797E8151F.exe
    "C:\Users\Admin\AppData\Local\Temp\31D526F2A0555E904ED31EC797E8151F.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • Drops file in Windows directory
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:2324
    • C:\Windows\svhost.exe
      "C:\Windows\svhost.exe"
      2⤵
      • Drops startup file
      • Executes dropped EXE
      • Adds Run key to start application
      • Drops autorun.inf file
      • Suspicious use of NtSetInformationThreadHideFromDebugger
      • Drops file in Windows directory
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: GetForegroundWindowSpam
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:4936
      • C:\Windows\SysWOW64\netsh.exe
        netsh firewall add allowedprogram "C:\Windows\svhost.exe" "svhost.exe" ENABLE
        3⤵
        • Modifies Windows Firewall
        PID:3560

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Replication Through Removable Media

1
T1091

Execution

Persistence

Create or Modify System Process

1
T1543

Windows Service

1
T1543.003

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Privilege Escalation

Create or Modify System Process

1
T1543

Windows Service

1
T1543.003

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Defense Evasion

Impair Defenses

1
T1562

Disable or Modify System Firewall

1
T1562.004

Modify Registry

1
T1112

Credential Access

Discovery

Query Registry

1
T1012

System Information Discovery

2
T1082

Lateral Movement

Replication Through Removable Media

1
T1091

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Windows\svhost.exe
    Filesize

    1.1MB

    MD5

    31d526f2a0555e904ed31ec797e8151f

    SHA1

    742d84337a209d151eace5f6ab3aea0f3c1fac16

    SHA256

    6d4056dce7464a436ab92a94702d79b48f861daa8f97d29c30b26c3461f3f0a1

    SHA512

    99027eec040a091523060267406686512ed26f0d2ae720449e56fff59115cd31b4d760dab114ea6d2f7e976161ac1a664dc9eafc16c9f8a2c89a1afa7e1133a9

    Download Submit
  • memory/2324-15-0x0000000000E20000-0x0000000001194000-memory.dmp
    Filesize

    3.5MB

    Download
  • memory/2324-2-0x0000000003360000-0x0000000003370000-memory.dmp
    Filesize

    64KB

    Download
  • memory/2324-3-0x0000000073E70000-0x0000000074421000-memory.dmp
    Filesize

    5.7MB

    Download
  • memory/2324-1-0x0000000073E70000-0x0000000074421000-memory.dmp
    Filesize

    5.7MB

    Download
  • memory/2324-0-0x0000000000E20000-0x0000000001194000-memory.dmp
    Filesize

    3.5MB

    Download
  • memory/2324-16-0x0000000073E70000-0x0000000074421000-memory.dmp
    Filesize

    5.7MB

    Download
  • memory/4936-13-0x0000000000DF0000-0x0000000001164000-memory.dmp
    Filesize

    3.5MB

    Download
  • memory/4936-17-0x0000000073E70000-0x0000000074421000-memory.dmp
    Filesize

    5.7MB

    Download
  • memory/4936-18-0x0000000003470000-0x0000000003480000-memory.dmp
    Filesize

    64KB

    Download
  • memory/4936-19-0x0000000073E70000-0x0000000074421000-memory.dmp
    Filesize

    5.7MB

    Download
  • memory/4936-31-0x0000000000DF0000-0x0000000001164000-memory.dmp
    Filesize

    3.5MB

    Download
  • memory/4936-32-0x0000000073E70000-0x0000000074421000-memory.dmp
    Filesize

    5.7MB

    Download