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Overview

overview

10

Static

static

10

b855fb58ce...ab.exe

windows7-x64

10

b855fb58ce...ab.exe

windows10-2004-x64

8

Analysis

  • max time kernel
    150s
  • max time network
    147s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    20/09/2024, 22:18

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General

  • Target

    b855fb58cec2d7b4d03058e0cedcbf9620c32d7f7c36c4e1f5434a22050c03ab.exe

  • Size

    28KB

  • MD5

    11e6d9c90a45a94d169ebd56d3d7715c

  • SHA1

    6e8d3c2c5d6af1dffd905fc66e87a1f837653cc2

  • SHA256

    b855fb58cec2d7b4d03058e0cedcbf9620c32d7f7c36c4e1f5434a22050c03ab

  • SHA512

    2934b48dcdf665983d0943c1d5ba2c2eb3733a9e304cb63cf92ad1f59f6b83e6cf579c3931392fefd654fee1a002bbdf6e3b1964f8ff234692a3eb45f7778bbb

  • SSDEEP

    384:hSSdBLFQTe5UvJwuZMeIGMnotlPaXjqxt0LE2wVGRbiNrxw8L7vnJSXt+jb:htyTeEwuvHtl0+D0LeVUbSQ9+n

Score
10/10
njratdiscoveryevasionpersistenceprivilege_escalationtrojan

Malware Config

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 39 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\b855fb58cec2d7b4d03058e0cedcbf9620c32d7f7c36c4e1f5434a22050c03ab.exe
    "C:\Users\Admin\AppData\Local\Temp\b855fb58cec2d7b4d03058e0cedcbf9620c32d7f7c36c4e1f5434a22050c03ab.exe"
    1⤵
    • Loads dropped DLL
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:1944
    • C:\Users\Admin\AppData\Local\Temp\SERVER.exe
      "C:\Users\Admin\AppData\Local\Temp\SERVER.exe"
      2⤵
      • Drops startup file
      • Executes dropped EXE
      • Adds Run key to start application
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:2480
      • C:\Windows\SysWOW64\netsh.exe
        netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\SERVER.exe" "SERVER.exe" ENABLE
        3⤵
        • Modifies Windows Firewall
        • Event Triggered Execution: Netsh Helper DLL
        • System Location Discovery: System Language Discovery
        PID:2940

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

  • \Users\Admin\AppData\Local\Temp\SERVER.exe
    Filesize

    28KB

    MD5

    11e6d9c90a45a94d169ebd56d3d7715c

    SHA1

    6e8d3c2c5d6af1dffd905fc66e87a1f837653cc2

    SHA256

    b855fb58cec2d7b4d03058e0cedcbf9620c32d7f7c36c4e1f5434a22050c03ab

    SHA512

    2934b48dcdf665983d0943c1d5ba2c2eb3733a9e304cb63cf92ad1f59f6b83e6cf579c3931392fefd654fee1a002bbdf6e3b1964f8ff234692a3eb45f7778bbb

    Download Submit

  • memory/1944-0-0x0000000074381000-0x0000000074382000-memory.dmp

    Filesize

    4KB

    Download

  • memory/1944-2-0x0000000074380000-0x000000007492B000-memory.dmp

    Filesize

    5.7MB

    Download

  • memory/1944-1-0x0000000074380000-0x000000007492B000-memory.dmp

    Filesize

    5.7MB

    Download

  • memory/1944-12-0x0000000074380000-0x000000007492B000-memory.dmp

    Filesize

    5.7MB

    Download

  • memory/2480-10-0x0000000074380000-0x000000007492B000-memory.dmp

    Filesize

    5.7MB

    Download

  • memory/2480-11-0x0000000074380000-0x000000007492B000-memory.dmp

    Filesize

    5.7MB

    Download

  • memory/2480-14-0x0000000074380000-0x000000007492B000-memory.dmp

    Filesize

    5.7MB

    Download