Overview

overview

10

Static

static

10

e2f7bf2592...1N.exe

windows7-x64

10

e2f7bf2592...1N.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    120s
  • max time network
    120s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    17-09-2024 21:39

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General

  • Target

    e2f7bf25926cbc3651657030af2d90e57675a1818d82134f424ef5f399bd3001N.exe

  • Size

    31KB

  • MD5

    e3e1748d9d2568a906e68e295603e340

  • SHA1

    471af2d45548dfe35ff0d29550b0b66adcfac58d

  • SHA256

    e2f7bf25926cbc3651657030af2d90e57675a1818d82134f424ef5f399bd3001

  • SHA512

    5910161f80aa3bddce57f1d1dd87df00d1775260a9954497657c164a98344e8216675b030af7fddbfa493d0ef288e5c8e859afaa44e4f1d43de2064baaa1816b

  • SSDEEP

    768:hHnTaeU+VfJFozxzC/Svev+z5vC3QmIDUu0tiwfj:douaxBAQVknj

Score
10/10
njratbttrdiscorddiscoveryevasionpersistenceprivilege_escalationtrojan

Malware Config

Extracted

Family

njrat

Version

0.7d

Botnet

bttrdiscord

C2

127.0.0.1:6522

Mutex

4b39a1369a07207d174180294d33b9a8

Attributes
  • reg_key

    4b39a1369a07207d174180294d33b9a8

  • splitter

    Y262SUCZ4UJJ

Signatures

  • njRAT/Bladabindi

    Widely used RAT written in .NET.

    trojannjrat
  • Modifies Windows Firewall 2 TTPs 1 IoCs
    evasion
  • Drops startup file 2 IoCs
  • Executes dropped EXE 1 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).

  • Event Triggered Execution: Netsh Helper DLL 1 TTPs 3 IoCs

    Netsh.exe (also referred to as Netshell) is a command-line scripting utility used to interact with the network configuration of a system.

    persistenceprivilege_escalation
  • System Location Discovery: System Language Discovery 1 TTPs 3 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

    discovery
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 28 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\e2f7bf25926cbc3651657030af2d90e57675a1818d82134f424ef5f399bd3001N.exe
    "C:\Users\Admin\AppData\Local\Temp\e2f7bf25926cbc3651657030af2d90e57675a1818d82134f424ef5f399bd3001N.exe"
    1⤵
    • Loads dropped DLL
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2980
    • C:\ProgramData\betterdiscord.exe
      "C:\ProgramData\betterdiscord.exe"
      2⤵
      • Drops startup file
      • Executes dropped EXE
      • Adds Run key to start application
      • System Location Discovery: System Language Discovery
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:2360
      • C:\Windows\SysWOW64\netsh.exe
        netsh firewall add allowedprogram "C:\ProgramData\betterdiscord.exe" "betterdiscord.exe" ENABLE
        3⤵
        • Modifies Windows Firewall
        • Event Triggered Execution: Netsh Helper DLL
        • System Location Discovery: System Language Discovery
        PID:2760

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Create or Modify System Process

1
T1543

Windows Service

1
T1543.003

Event Triggered Execution

1
T1546

Netsh Helper DLL

1
T1546.007

Privilege Escalation

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Create or Modify System Process

1
T1543

Windows Service

1
T1543.003

Event Triggered Execution

1
T1546

Netsh Helper DLL

1
T1546.007

Defense Evasion

Impair Defenses

1
T1562

Disable or Modify System Firewall

1
T1562.004

Modify Registry

1
T1112

Credential Access

Discovery

System Information Discovery

1
T1082

System Location Discovery

1
T1614

System Language Discovery

1
T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

  • \ProgramData\betterdiscord.exe
    Filesize

    31KB

    MD5

    e3e1748d9d2568a906e68e295603e340

    SHA1

    471af2d45548dfe35ff0d29550b0b66adcfac58d

    SHA256

    e2f7bf25926cbc3651657030af2d90e57675a1818d82134f424ef5f399bd3001

    SHA512

    5910161f80aa3bddce57f1d1dd87df00d1775260a9954497657c164a98344e8216675b030af7fddbfa493d0ef288e5c8e859afaa44e4f1d43de2064baaa1816b

    Download Submit

  • memory/2360-12-0x0000000074B70000-0x000000007511B000-memory.dmp

    Filesize

    5.7MB

    Download

  • memory/2360-15-0x0000000074B70000-0x000000007511B000-memory.dmp

    Filesize

    5.7MB

    Download

  • memory/2360-14-0x0000000074B70000-0x000000007511B000-memory.dmp

    Filesize

    5.7MB

    Download

  • memory/2360-17-0x0000000074B70000-0x000000007511B000-memory.dmp

    Filesize

    5.7MB

    Download

  • memory/2360-18-0x0000000074B70000-0x000000007511B000-memory.dmp

    Filesize

    5.7MB

    Download

  • memory/2360-19-0x0000000074B70000-0x000000007511B000-memory.dmp

    Filesize

    5.7MB

    Download

  • memory/2980-0-0x0000000074B71000-0x0000000074B72000-memory.dmp

    Filesize

    4KB

    Download

  • memory/2980-1-0x0000000074B70000-0x000000007511B000-memory.dmp

    Filesize

    5.7MB

    Download

  • memory/2980-2-0x0000000074B70000-0x000000007511B000-memory.dmp

    Filesize

    5.7MB

    Download

  • memory/2980-13-0x0000000074B70000-0x000000007511B000-memory.dmp

    Filesize

    5.7MB

    Download