njrat | 7559e6ca8b77400f88bf4e67208a1c32570a670068eccae9e3d226cc5471bd47

Analysis

max time kernel
150s
max time network
141s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
31-01-2025 18:35

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General

Target

bazaar.2020.02/Trojan.MSIL.Disfa.exe
Size

23KB
MD5

9c691e60b7ffdaec80cb169114b784f2
SHA1

1d7df5d95f0e4ff3c5825c4aed7d3838d0c02f1e
SHA256

f489cba00e6d7bc606ea137f639ac40baca8871474066bec0a839fae75de4eaf
SHA512

84b9f8c7de1107f95c3833d0e556bbdffeafc33da9346ccc66d080e05b16946e048f271d6a84649792d1847ffb805b0ab24402d25d4eca2a77e2f9e80bc67264
SSDEEP

384:dcqbCK0l4h7o9SVyDGvENuh46/gJkOmMSW38mRvR6JZlbw8hqIusZzZiC:O30py6vhxaRpcnuy

Score

10^/10

njrat hacked defense_evasion discovery persistence privilege_escalation trojan

Malware Config

Extracted

Family

njrat

Version

0.7d

Botnet

HacKed

191.239.255.3:5552

Mutex

864692358947bbd64230700870762f06

Attributes

reg_key
864692358947bbd64230700870762f06
splitter
|'|'|

Signatures

Njrat family
njrat
njRAT/Bladabindi
Widely used RAT written in .NET.
trojan njrat

Modifies Windows Firewall 2 TTPs 1 IoCs

defense_evasion

Windows Service

T1543.003

Disable or Modify System Firewall

T1562.004

pid	Process
2744	netsh.exe

Executes dropped EXE 1 IoCs

pid	Process
2444	server.exe

Loads dropped DLL 1 IoCs

pid	Process
2612	Trojan.MSIL.Disfa.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-1488793075-819845221-1497111674-1000\Software\Microsoft\Windows\CurrentVersion\Run\864692358947bbd64230700870762f06 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\server.exe\" .."	server.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\864692358947bbd64230700870762f06 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\server.exe\" .."	server.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

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.

persistence privilege_escalation

Netsh Helper DLL

T1546.007

description	ioc	Process
Key value enumerated	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh	netsh.exe
Key opened	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh	netsh.exe
Key queried	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh	netsh.exe

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

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	server.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Trojan.MSIL.Disfa.exe

Suspicious use of AdjustPrivilegeToken 35 IoCs

description	pid	Process
Token: SeDebugPrivilege	2444	server.exe
Token: 33	2444	server.exe
Token: SeIncBasePriorityPrivilege	2444	server.exe
Token: 33	2444	server.exe
Token: SeIncBasePriorityPrivilege	2444	server.exe
Token: 33	2444	server.exe
Token: SeIncBasePriorityPrivilege	2444	server.exe
Token: 33	2444	server.exe
Token: SeIncBasePriorityPrivilege	2444	server.exe
Token: 33	2444	server.exe
Token: SeIncBasePriorityPrivilege	2444	server.exe
Token: 33	2444	server.exe
Token: SeIncBasePriorityPrivilege	2444	server.exe
Token: 33	2444	server.exe
Token: SeIncBasePriorityPrivilege	2444	server.exe
Token: 33	2444	server.exe
Token: SeIncBasePriorityPrivilege	2444	server.exe
Token: 33	2444	server.exe
Token: SeIncBasePriorityPrivilege	2444	server.exe
Token: 33	2444	server.exe
Token: SeIncBasePriorityPrivilege	2444	server.exe
Token: 33	2444	server.exe
Token: SeIncBasePriorityPrivilege	2444	server.exe
Token: 33	2444	server.exe
Token: SeIncBasePriorityPrivilege	2444	server.exe
Token: 33	2444	server.exe
Token: SeIncBasePriorityPrivilege	2444	server.exe
Token: 33	2444	server.exe
Token: SeIncBasePriorityPrivilege	2444	server.exe
Token: 33	2444	server.exe
Token: SeIncBasePriorityPrivilege	2444	server.exe
Token: 33	2444	server.exe
Token: SeIncBasePriorityPrivilege	2444	server.exe
Token: 33	2444	server.exe
Token: SeIncBasePriorityPrivilege	2444	server.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 2612 wrote to memory of 2444	2612	Trojan.MSIL.Disfa.exe	31
PID 2612 wrote to memory of 2444	2612	Trojan.MSIL.Disfa.exe	31
PID 2612 wrote to memory of 2444	2612	Trojan.MSIL.Disfa.exe	31
PID 2612 wrote to memory of 2444	2612	Trojan.MSIL.Disfa.exe	31
PID 2444 wrote to memory of 2744	2444	server.exe	32
PID 2444 wrote to memory of 2744	2444	server.exe	32
PID 2444 wrote to memory of 2744	2444	server.exe	32
PID 2444 wrote to memory of 2744	2444	server.exe	32

C:\Users\Admin\AppData\Local\Temp\bazaar.2020.02\Trojan.MSIL.Disfa.exe
"C:\Users\Admin\AppData\Local\Temp\bazaar.2020.02\Trojan.MSIL.Disfa.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2612
- C:\Users\Admin\AppData\Local\Temp\server.exe
  "C:\Users\Admin\AppData\Local\Temp\server.exe"
  2⤵
  - Executes dropped EXE
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2444
- - 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:2744

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Create or Modify System Process

T1543

Windows Service

T1543.003

Event Triggered Execution

T1546

Netsh Helper DLL

T1546.007

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Create or Modify System Process

T1543

Windows Service

T1543.003

Event Triggered Execution

T1546

Netsh Helper DLL

T1546.007

Defense Evasion

Impair Defenses

T1562

Disable or Modify System Firewall

T1562.004

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

\Users\Admin\AppData\Local\Temp\server.exe

Filesize
23KB

MD5
9c691e60b7ffdaec80cb169114b784f2

SHA1
1d7df5d95f0e4ff3c5825c4aed7d3838d0c02f1e

SHA256
f489cba00e6d7bc606ea137f639ac40baca8871474066bec0a839fae75de4eaf

SHA512
84b9f8c7de1107f95c3833d0e556bbdffeafc33da9346ccc66d080e05b16946e048f271d6a84649792d1847ffb805b0ab24402d25d4eca2a77e2f9e80bc67264

Download Submit
memory/2444-11-0x00000000746E0000-0x0000000074C8B000-memory.dmp

Filesize
5.7MB

Download
memory/2444-13-0x00000000746E0000-0x0000000074C8B000-memory.dmp

Filesize
5.7MB

Download
memory/2444-12-0x00000000746E0000-0x0000000074C8B000-memory.dmp

Filesize
5.7MB

Download
memory/2444-14-0x00000000746E0000-0x0000000074C8B000-memory.dmp

Filesize
5.7MB

Download
memory/2612-0-0x00000000746E1000-0x00000000746E2000-memory.dmp

Filesize
4KB

Download
memory/2612-1-0x00000000746E0000-0x0000000074C8B000-memory.dmp

Filesize
5.7MB

Download
memory/2612-2-0x00000000746E0000-0x0000000074C8B000-memory.dmp

Filesize
5.7MB

Download
memory/2612-10-0x00000000746E0000-0x0000000074C8B000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads