njrat | 87a40d2e8ebe033ff3d359309dda136f1bced5c5578c8ea7d05b9d97e5adb12f

Analysis

max time kernel
150s
max time network
119s
platform
windows7_x64
resource
win7-20240708-en
resource tags

arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
submitted
13-12-2024 11:02

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General

Target

mos ssssttttt.exe
Size

93KB
MD5

8be7cd574b5424c43a6d0ccc4a989412
SHA1

946d22547849765d756071f63be3417b30f39c6f
SHA256

87a40d2e8ebe033ff3d359309dda136f1bced5c5578c8ea7d05b9d97e5adb12f
SHA512

8aff9965a7c8ccb357b3e026c2b65eb0457d4967ddbbb269f781ce62c9c77667b3a7ed4e8794bdaff6a7adfd46757cf1579bf740ec5a0d2747efa824bcf18eeb
SSDEEP

1536:lIEQIBlfGQFk2ZonmzlMxjEwzGi1dD1DYgS:lICtFk2ZonmZMOi1dxB

Score

10^/10

njrat hacked discovery evasion persistence privilege_escalation trojan

Malware Config

Extracted

Family

njrat

Version

0.7d

Botnet

HacKed

hakim32.ddns.net:2000

127.0.0.1:444

Mutex

990be91699f271511aed6c9147533362

Attributes

reg_key
990be91699f271511aed6c9147533362
splitter
|'|'|

Signatures

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

Modifies Windows Firewall 2 TTPs 3 IoCs

evasion

Windows Service

T1543.003

Disable or Modify System Firewall

T1562.004

pid	Process
2108	netsh.exe
2684	netsh.exe
2452	netsh.exe

Executes dropped EXE 3 IoCs

pid	Process
2884	StUpdate.exe
2776	StUpdate.exe
1168	StUpdate.exe

Loads dropped DLL 9 IoCs

pid	Process
2884	StUpdate.exe
2884	StUpdate.exe
2884	StUpdate.exe
2776	StUpdate.exe
2776	StUpdate.exe
2776	StUpdate.exe
1168	StUpdate.exe
1168	StUpdate.exe
1168	StUpdate.exe

Event Triggered Execution: Netsh Helper DLL 1 TTPs 9 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 value enumerated	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh	netsh.exe
Key opened	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh	netsh.exe
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
Key queried	\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 8 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	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	StUpdate.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	StUpdate.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	StUpdate.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	mos ssssttttt.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe

Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence execution

Scheduled Task

T1053.005

pid	Process
2360	schtasks.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
1380	mos ssssttttt.exe
1380	mos ssssttttt.exe
1380	mos ssssttttt.exe
1380	mos ssssttttt.exe
1380	mos ssssttttt.exe
1380	mos ssssttttt.exe
1380	mos ssssttttt.exe
1380	mos ssssttttt.exe
1380	mos ssssttttt.exe
1380	mos ssssttttt.exe
1380	mos ssssttttt.exe
1380	mos ssssttttt.exe
1380	mos ssssttttt.exe
1380	mos ssssttttt.exe
1380	mos ssssttttt.exe
1380	mos ssssttttt.exe
1380	mos ssssttttt.exe
1380	mos ssssttttt.exe
1380	mos ssssttttt.exe
1380	mos ssssttttt.exe
1380	mos ssssttttt.exe
1380	mos ssssttttt.exe
1380	mos ssssttttt.exe
1380	mos ssssttttt.exe
1380	mos ssssttttt.exe
1380	mos ssssttttt.exe
1380	mos ssssttttt.exe
1380	mos ssssttttt.exe
1380	mos ssssttttt.exe
1380	mos ssssttttt.exe
1380	mos ssssttttt.exe
1380	mos ssssttttt.exe
1380	mos ssssttttt.exe
1380	mos ssssttttt.exe
1380	mos ssssttttt.exe
1380	mos ssssttttt.exe
1380	mos ssssttttt.exe
1380	mos ssssttttt.exe
1380	mos ssssttttt.exe
1380	mos ssssttttt.exe
1380	mos ssssttttt.exe
1380	mos ssssttttt.exe
1380	mos ssssttttt.exe
1380	mos ssssttttt.exe
1380	mos ssssttttt.exe
1380	mos ssssttttt.exe
1380	mos ssssttttt.exe
1380	mos ssssttttt.exe
1380	mos ssssttttt.exe
1380	mos ssssttttt.exe
1380	mos ssssttttt.exe
1380	mos ssssttttt.exe
1380	mos ssssttttt.exe
1380	mos ssssttttt.exe
1380	mos ssssttttt.exe
1380	mos ssssttttt.exe
1380	mos ssssttttt.exe
1380	mos ssssttttt.exe
1380	mos ssssttttt.exe
1380	mos ssssttttt.exe
1380	mos ssssttttt.exe
1380	mos ssssttttt.exe
1380	mos ssssttttt.exe
1380	mos ssssttttt.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
1380	mos ssssttttt.exe

Suspicious use of AdjustPrivilegeToken 37 IoCs

description	pid	Process
Token: SeDebugPrivilege	1380	mos ssssttttt.exe
Token: 33	1380	mos ssssttttt.exe
Token: SeIncBasePriorityPrivilege	1380	mos ssssttttt.exe
Token: 33	1380	mos ssssttttt.exe
Token: SeIncBasePriorityPrivilege	1380	mos ssssttttt.exe
Token: 33	1380	mos ssssttttt.exe
Token: SeIncBasePriorityPrivilege	1380	mos ssssttttt.exe
Token: 33	1380	mos ssssttttt.exe
Token: SeIncBasePriorityPrivilege	1380	mos ssssttttt.exe
Token: 33	1380	mos ssssttttt.exe
Token: SeIncBasePriorityPrivilege	1380	mos ssssttttt.exe
Token: 33	1380	mos ssssttttt.exe
Token: SeIncBasePriorityPrivilege	1380	mos ssssttttt.exe
Token: 33	1380	mos ssssttttt.exe
Token: SeIncBasePriorityPrivilege	1380	mos ssssttttt.exe
Token: 33	1380	mos ssssttttt.exe
Token: SeIncBasePriorityPrivilege	1380	mos ssssttttt.exe
Token: 33	1380	mos ssssttttt.exe
Token: SeIncBasePriorityPrivilege	1380	mos ssssttttt.exe
Token: 33	1380	mos ssssttttt.exe
Token: SeIncBasePriorityPrivilege	1380	mos ssssttttt.exe
Token: 33	1380	mos ssssttttt.exe
Token: SeIncBasePriorityPrivilege	1380	mos ssssttttt.exe
Token: 33	1380	mos ssssttttt.exe
Token: SeIncBasePriorityPrivilege	1380	mos ssssttttt.exe
Token: 33	1380	mos ssssttttt.exe
Token: SeIncBasePriorityPrivilege	1380	mos ssssttttt.exe
Token: 33	1380	mos ssssttttt.exe
Token: SeIncBasePriorityPrivilege	1380	mos ssssttttt.exe
Token: 33	1380	mos ssssttttt.exe
Token: SeIncBasePriorityPrivilege	1380	mos ssssttttt.exe
Token: 33	1380	mos ssssttttt.exe
Token: SeIncBasePriorityPrivilege	1380	mos ssssttttt.exe
Token: 33	1380	mos ssssttttt.exe
Token: SeIncBasePriorityPrivilege	1380	mos ssssttttt.exe
Token: 33	1380	mos ssssttttt.exe
Token: SeIncBasePriorityPrivilege	1380	mos ssssttttt.exe

Suspicious use of WriteProcessMemory 37 IoCs

description	pid	Process	procid_target
PID 1380 wrote to memory of 2108	1380	mos ssssttttt.exe	30
PID 1380 wrote to memory of 2108	1380	mos ssssttttt.exe	30
PID 1380 wrote to memory of 2108	1380	mos ssssttttt.exe	30
PID 1380 wrote to memory of 2108	1380	mos ssssttttt.exe	30
PID 1380 wrote to memory of 2684	1380	mos ssssttttt.exe	32
PID 1380 wrote to memory of 2684	1380	mos ssssttttt.exe	32
PID 1380 wrote to memory of 2684	1380	mos ssssttttt.exe	32
PID 1380 wrote to memory of 2684	1380	mos ssssttttt.exe	32
PID 1380 wrote to memory of 2452	1380	mos ssssttttt.exe	33
PID 1380 wrote to memory of 2452	1380	mos ssssttttt.exe	33
PID 1380 wrote to memory of 2452	1380	mos ssssttttt.exe	33
PID 1380 wrote to memory of 2452	1380	mos ssssttttt.exe	33
PID 1380 wrote to memory of 2360	1380	mos ssssttttt.exe	35
PID 1380 wrote to memory of 2360	1380	mos ssssttttt.exe	35
PID 1380 wrote to memory of 2360	1380	mos ssssttttt.exe	35
PID 1380 wrote to memory of 2360	1380	mos ssssttttt.exe	35
PID 2832 wrote to memory of 2884	2832	taskeng.exe	40
PID 2832 wrote to memory of 2884	2832	taskeng.exe	40
PID 2832 wrote to memory of 2884	2832	taskeng.exe	40
PID 2832 wrote to memory of 2884	2832	taskeng.exe	40
PID 2832 wrote to memory of 2884	2832	taskeng.exe	40
PID 2832 wrote to memory of 2884	2832	taskeng.exe	40
PID 2832 wrote to memory of 2884	2832	taskeng.exe	40
PID 2832 wrote to memory of 2776	2832	taskeng.exe	41
PID 2832 wrote to memory of 2776	2832	taskeng.exe	41
PID 2832 wrote to memory of 2776	2832	taskeng.exe	41
PID 2832 wrote to memory of 2776	2832	taskeng.exe	41
PID 2832 wrote to memory of 2776	2832	taskeng.exe	41
PID 2832 wrote to memory of 2776	2832	taskeng.exe	41
PID 2832 wrote to memory of 2776	2832	taskeng.exe	41
PID 2832 wrote to memory of 1168	2832	taskeng.exe	42
PID 2832 wrote to memory of 1168	2832	taskeng.exe	42
PID 2832 wrote to memory of 1168	2832	taskeng.exe	42
PID 2832 wrote to memory of 1168	2832	taskeng.exe	42
PID 2832 wrote to memory of 1168	2832	taskeng.exe	42
PID 2832 wrote to memory of 1168	2832	taskeng.exe	42
PID 2832 wrote to memory of 1168	2832	taskeng.exe	42

C:\Users\Admin\AppData\Local\Temp\mos ssssttttt.exe
"C:\Users\Admin\AppData\Local\Temp\mos ssssttttt.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1380
- C:\Windows\SysWOW64\netsh.exe
  netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\mos ssssttttt.exe" "mos ssssttttt.exe" ENABLE
  2⤵
  - Modifies Windows Firewall
  - Event Triggered Execution: Netsh Helper DLL
  - System Location Discovery: System Language Discovery
  PID:2108
- C:\Windows\SysWOW64\netsh.exe
  netsh firewall delete allowedprogram "C:\Users\Admin\AppData\Local\Temp\mos ssssttttt.exe"
  2⤵
  - Modifies Windows Firewall
  - Event Triggered Execution: Netsh Helper DLL
  - System Location Discovery: System Language Discovery
  PID:2684
- C:\Windows\SysWOW64\netsh.exe
  netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\mos ssssttttt.exe" "mos ssssttttt.exe" ENABLE
  2⤵
  - Modifies Windows Firewall
  - Event Triggered Execution: Netsh Helper DLL
  - System Location Discovery: System Language Discovery
  PID:2452
- C:\Windows\SysWOW64\schtasks.exe
  schtasks /create /sc minute /mo 1 /tn StUpdate /tr C:\Users\Admin\AppData\Local\Temp/StUpdate.exe
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:2360

C:\Windows\system32\taskeng.exe
taskeng.exe {8EF065FB-029F-4269-A3CE-AD8D1E3E016E} S-1-5-21-3551809350-4263495960-1443967649-1000:NNYJZAHP\Admin:Interactive:[1]
1⤵
- Suspicious use of WriteProcessMemory
PID:2832
- C:\Users\Admin\AppData\Local\Temp\StUpdate.exe
  C:\Users\Admin\AppData\Local\Temp/StUpdate.exe
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  PID:2884
- C:\Users\Admin\AppData\Local\Temp\StUpdate.exe
  C:\Users\Admin\AppData\Local\Temp/StUpdate.exe
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  PID:2776
- C:\Users\Admin\AppData\Local\Temp\StUpdate.exe
  C:\Users\Admin\AppData\Local\Temp/StUpdate.exe
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  PID:1168

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Persistence

Create or Modify System Process

T1543

Windows Service

T1543.003

Event Triggered Execution

T1546

Netsh Helper DLL

T1546.007

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Privilege Escalation

Create or Modify System Process

T1543

Windows Service

T1543.003

Event Triggered Execution

T1546

Netsh Helper DLL

T1546.007

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Defense Evasion

Impair Defenses

T1562

Disable or Modify System Firewall

T1562.004

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\StUpdate.exe

Filesize
93KB

MD5
8be7cd574b5424c43a6d0ccc4a989412

SHA1
946d22547849765d756071f63be3417b30f39c6f

SHA256
87a40d2e8ebe033ff3d359309dda136f1bced5c5578c8ea7d05b9d97e5adb12f

SHA512
8aff9965a7c8ccb357b3e026c2b65eb0457d4967ddbbb269f781ce62c9c77667b3a7ed4e8794bdaff6a7adfd46757cf1579bf740ec5a0d2747efa824bcf18eeb

Download Submit
C:\Users\Admin\AppData\Roaming\app

Filesize
5B

MD5
bbcd2be775370c1e106e66d077a93f3b

SHA1
a44b6a98f30e3275fc304bc3b29e0eab8ae47f20

SHA256
a7aa76f137ba550c381cfb8e5195a01963ae49db167e1cd1e0a8b902ed81eda1

SHA512
bb6e0d1f24253a9525fd538debf8ca68eb7078cb8539140c184331a854ecdea192fbcc314c4154a0a474c9aec41a79efeb8150922454c3c9e71eeb5297ae2f72

Download Submit
memory/1380-0-0x0000000074B71000-0x0000000074B72000-memory.dmp

Filesize
4KB

Download
memory/1380-1-0x0000000074B70000-0x000000007511B000-memory.dmp

Filesize
5.7MB

Download
memory/1380-2-0x0000000074B70000-0x000000007511B000-memory.dmp

Filesize
5.7MB

Download
memory/1380-5-0x0000000074B70000-0x000000007511B000-memory.dmp

Filesize
5.7MB

Download