njrat | b8c5e2c8477706f3f54e152443718dcec270889002289aa1730eabc5ba3f312f

Analysis

max time kernel
90s
max time network
122s
platform
windows7_x64
resource
win7-20250207-en
resource tags

arch:x64arch:x86image:win7-20250207-enlocale:en-usos:windows7-x64system
submitted
22/03/2025, 06:09

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General

Target

277de6643cae0dcc918de5342ba5f386.exe
Size

23KB
MD5

277de6643cae0dcc918de5342ba5f386
SHA1

21ea2be08f0383e17920bc69e0ca8093e736f6ce
SHA256

034571fe3806bfc17dba77d5b97ee76375df0989a4462f72d79287b7231dd040
SHA512

ad17ff0df3b8d13dc17752ed4e7d66ff69a8d52207b0b6c860a4ec0cdaeeb775fc69bac4c5f27d8f89f48a96d0598420cd45149edb3ac10eb578f2299da41f5e
SSDEEP

384:/AQ+SAN7uprgvM5OSUswZXg6rgbm4hfpFmRvR6JZlbw8hqIusZzZVb:vOaxVUxRpcnue

Score

10^/10

njrat tnakt fik defense_evasion discovery persistence privilege_escalation trojan

Malware Config

Extracted

Family

njrat

Version

0.7d

Botnet

tnakt fik

tnaktfik.ddns.net:1177

Mutex

6ccf4ee47554289234f96881f6819ddb

Attributes

reg_key
6ccf4ee47554289234f96881f6819ddb
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
3016	netsh.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\6ccf4ee47554289234f96881f6819ddb.exe	System.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\6ccf4ee47554289234f96881f6819ddb.exe	System.exe

Executes dropped EXE 1 IoCs

pid	Process
2880	System.exe

Loads dropped DLL 1 IoCs

pid	Process
2904	277de6643cae0dcc918de5342ba5f386.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 opened	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh	netsh.exe
Key queried	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh	netsh.exe
Key value enumerated	\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	277de6643cae0dcc918de5342ba5f386.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	System.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe

Suspicious use of AdjustPrivilegeToken 19 IoCs

description	pid	Process
Token: SeDebugPrivilege	2880	System.exe
Token: 33	2880	System.exe
Token: SeIncBasePriorityPrivilege	2880	System.exe
Token: 33	2880	System.exe
Token: SeIncBasePriorityPrivilege	2880	System.exe
Token: 33	2880	System.exe
Token: SeIncBasePriorityPrivilege	2880	System.exe
Token: 33	2880	System.exe
Token: SeIncBasePriorityPrivilege	2880	System.exe
Token: 33	2880	System.exe
Token: SeIncBasePriorityPrivilege	2880	System.exe
Token: 33	2880	System.exe
Token: SeIncBasePriorityPrivilege	2880	System.exe
Token: 33	2880	System.exe
Token: SeIncBasePriorityPrivilege	2880	System.exe
Token: 33	2880	System.exe
Token: SeIncBasePriorityPrivilege	2880	System.exe
Token: 33	2880	System.exe
Token: SeIncBasePriorityPrivilege	2880	System.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 2904 wrote to memory of 2880	2904	277de6643cae0dcc918de5342ba5f386.exe	31
PID 2904 wrote to memory of 2880	2904	277de6643cae0dcc918de5342ba5f386.exe	31
PID 2904 wrote to memory of 2880	2904	277de6643cae0dcc918de5342ba5f386.exe	31
PID 2904 wrote to memory of 2880	2904	277de6643cae0dcc918de5342ba5f386.exe	31
PID 2880 wrote to memory of 3016	2880	System.exe	32
PID 2880 wrote to memory of 3016	2880	System.exe	32
PID 2880 wrote to memory of 3016	2880	System.exe	32
PID 2880 wrote to memory of 3016	2880	System.exe	32

C:\Users\Admin\AppData\Local\Temp\277de6643cae0dcc918de5342ba5f386.exe
"C:\Users\Admin\AppData\Local\Temp\277de6643cae0dcc918de5342ba5f386.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2904
- C:\Users\Admin\AppData\Roaming\System.exe
  "C:\Users\Admin\AppData\Roaming\System.exe"
  2⤵
  - Drops startup file
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2880
- - C:\Windows\SysWOW64\netsh.exe
    netsh firewall add allowedprogram "C:\Users\Admin\AppData\Roaming\System.exe" "System.exe" ENABLE
    3⤵
    - Modifies Windows Firewall
    - Event Triggered Execution: Netsh Helper DLL
    - System Location Discovery: System Language Discovery
    PID:3016

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Create or Modify System Process

T1543

Windows Service

T1543.003

Event Triggered Execution

T1546

Netsh Helper DLL

T1546.007

Privilege Escalation

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

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

C:\Users\Admin\AppData\Roaming\System.exe

Filesize
23KB

MD5
277de6643cae0dcc918de5342ba5f386

SHA1
21ea2be08f0383e17920bc69e0ca8093e736f6ce

SHA256
034571fe3806bfc17dba77d5b97ee76375df0989a4462f72d79287b7231dd040

SHA512
ad17ff0df3b8d13dc17752ed4e7d66ff69a8d52207b0b6c860a4ec0cdaeeb775fc69bac4c5f27d8f89f48a96d0598420cd45149edb3ac10eb578f2299da41f5e

Download Submit
memory/2880-12-0x0000000074E80000-0x000000007542B000-memory.dmp

Filesize
5.7MB

Download
memory/2880-10-0x0000000074E80000-0x000000007542B000-memory.dmp

Filesize
5.7MB

Download
memory/2880-14-0x0000000074E80000-0x000000007542B000-memory.dmp

Filesize
5.7MB

Download
memory/2880-15-0x0000000074E80000-0x000000007542B000-memory.dmp

Filesize
5.7MB

Download
memory/2904-0-0x0000000074E81000-0x0000000074E82000-memory.dmp

Filesize
4KB

Download
memory/2904-1-0x0000000074E80000-0x000000007542B000-memory.dmp

Filesize
5.7MB

Download
memory/2904-2-0x0000000074E80000-0x000000007542B000-memory.dmp

Filesize
5.7MB

Download
memory/2904-11-0x0000000074E80000-0x000000007542B000-memory.dmp

Filesize
5.7MB

Download

Analysis

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General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads