njrat | 5ab75bde3a5b8fc855271e0d84b31deb5cea0c79bae87831b35a5fd0d0f30ea3

Analysis

max time kernel
119s
max time network
113s
platform
windows10-1703_x64
resource
win10-20240404-en
resource tags

arch:x64arch:x86image:win10-20240404-enlocale:en-usos:windows10-1703-x64system
submitted
01-10-2024 17:31

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General

Target

Plugin cmd.exe
Size

145KB
MD5

404d831747e7713f2ea6d859b52ce9b3
SHA1

dc26d4095a0362960985e0fd4e96d12f0b3279e6
SHA256

5ab75bde3a5b8fc855271e0d84b31deb5cea0c79bae87831b35a5fd0d0f30ea3
SHA512

84c1d6725123b84996d951a9d777c1bc070d06f2b060c9adaf01443dedacb95adddc6afdc42049f72bea90d3290bd38241cefbb167268e41c68f30e622420968
SSDEEP

3072:2HMO6QJ+yJAo/nJer3LaqVVVVVVVVVVVVVVVVVVVVVVVVVVl2wRp:PO6VknJerbF2

Score

10^/10

njrat hacked discovery evasion persistence privilege_escalation trojan

Malware Config

Extracted

Family

njrat

Version

im523

Botnet

HacKed

82.202.167.226:25563

Mutex

6223efa2e07c96185936fe49d82f6360

Attributes

reg_key
6223efa2e07c96185936fe49d82f6360
splitter
|'|'|

Signatures

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

Modifies Windows Firewall 2 TTPs 1 IoCs

evasion

Windows Service

T1543.003

Disable or Modify System Firewall

T1562.004

pid	Process
2764	netsh.exe

Drops startup file 2 IoCs

description	ioc	Process
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\6223efa2e07c96185936fe49d82f6360.exe	svchost.exe
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\6223efa2e07c96185936fe49d82f6360.exe	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
4308	svchost.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-1-5-21-3968772205-1713802336-1776639840-1000\Software\Microsoft\Windows\CurrentVersion\Run\6223efa2e07c96185936fe49d82f6360 = "\"C:\\Users\\Admin\\AppData\\Roaming\\svchost.exe\" .."	svchost.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\6223efa2e07c96185936fe49d82f6360 = "\"C:\\Users\\Admin\\AppData\\Roaming\\svchost.exe\" .."	svchost.exe

Drops autorun.inf file 1 TTPs 5 IoCs

Malware can abuse Windows Autorun to spread further via attached volumes.

Replication Through Removable Media

T1091

description	ioc	Process
File created	C:\autorun.inf	svchost.exe
File opened for modification	C:\autorun.inf	svchost.exe
File created	D:\autorun.inf	svchost.exe
File created	F:\autorun.inf	svchost.exe
File opened for modification	F:\autorun.inf	svchost.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 4 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	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	taskkill.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Plugin cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe

Kills process with taskkill 1 IoCs

evasion

pid	Process
4376	taskkill.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
4308	svchost.exe
4308	svchost.exe
4308	svchost.exe
4308	svchost.exe
4308	svchost.exe
4308	svchost.exe
4308	svchost.exe
4308	svchost.exe
4308	svchost.exe
4308	svchost.exe
4308	svchost.exe
4308	svchost.exe
4308	svchost.exe
4308	svchost.exe
4308	svchost.exe
4308	svchost.exe
4308	svchost.exe
4308	svchost.exe
4308	svchost.exe
4308	svchost.exe
4308	svchost.exe
4308	svchost.exe
4308	svchost.exe
4308	svchost.exe
4308	svchost.exe
4308	svchost.exe
4308	svchost.exe
4308	svchost.exe
4308	svchost.exe
4308	svchost.exe
4308	svchost.exe
4308	svchost.exe
4308	svchost.exe
4308	svchost.exe
4308	svchost.exe
4308	svchost.exe
4308	svchost.exe
4308	svchost.exe
4308	svchost.exe
4308	svchost.exe
4308	svchost.exe
4308	svchost.exe
4308	svchost.exe
4308	svchost.exe
4308	svchost.exe
4308	svchost.exe
4308	svchost.exe
4308	svchost.exe
4308	svchost.exe
4308	svchost.exe
4308	svchost.exe
4308	svchost.exe
4308	svchost.exe
4308	svchost.exe
4308	svchost.exe
4308	svchost.exe
4308	svchost.exe
4308	svchost.exe
4308	svchost.exe
4308	svchost.exe
4308	svchost.exe
4308	svchost.exe
4308	svchost.exe
4308	svchost.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
4308	svchost.exe

Suspicious use of AdjustPrivilegeToken 28 IoCs

description	pid	Process
Token: SeDebugPrivilege	4308	svchost.exe
Token: SeDebugPrivilege	4376	taskkill.exe
Token: 33	4308	svchost.exe
Token: SeIncBasePriorityPrivilege	4308	svchost.exe
Token: 33	4308	svchost.exe
Token: SeIncBasePriorityPrivilege	4308	svchost.exe
Token: 33	4308	svchost.exe
Token: SeIncBasePriorityPrivilege	4308	svchost.exe
Token: 33	4308	svchost.exe
Token: SeIncBasePriorityPrivilege	4308	svchost.exe
Token: 33	4308	svchost.exe
Token: SeIncBasePriorityPrivilege	4308	svchost.exe
Token: 33	4308	svchost.exe
Token: SeIncBasePriorityPrivilege	4308	svchost.exe
Token: 33	4308	svchost.exe
Token: SeIncBasePriorityPrivilege	4308	svchost.exe
Token: 33	4308	svchost.exe
Token: SeIncBasePriorityPrivilege	4308	svchost.exe
Token: 33	4308	svchost.exe
Token: SeIncBasePriorityPrivilege	4308	svchost.exe
Token: 33	4308	svchost.exe
Token: SeIncBasePriorityPrivilege	4308	svchost.exe
Token: 33	4308	svchost.exe
Token: SeIncBasePriorityPrivilege	4308	svchost.exe
Token: 33	4308	svchost.exe
Token: SeIncBasePriorityPrivilege	4308	svchost.exe
Token: 33	4308	svchost.exe
Token: SeIncBasePriorityPrivilege	4308	svchost.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 4124 wrote to memory of 4308	4124	Plugin cmd.exe	73
PID 4124 wrote to memory of 4308	4124	Plugin cmd.exe	73
PID 4124 wrote to memory of 4308	4124	Plugin cmd.exe	73
PID 4308 wrote to memory of 2764	4308	svchost.exe	74
PID 4308 wrote to memory of 2764	4308	svchost.exe	74
PID 4308 wrote to memory of 2764	4308	svchost.exe	74
PID 4308 wrote to memory of 4376	4308	svchost.exe	76
PID 4308 wrote to memory of 4376	4308	svchost.exe	76
PID 4308 wrote to memory of 4376	4308	svchost.exe	76

C:\Users\Admin\AppData\Local\Temp\Plugin cmd.exe
"C:\Users\Admin\AppData\Local\Temp\Plugin cmd.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4124
- C:\Users\Admin\AppData\Roaming\svchost.exe
  "C:\Users\Admin\AppData\Roaming\svchost.exe"
  2⤵
  - Drops startup file
  - Executes dropped EXE
  - Adds Run key to start application
  - Drops autorun.inf file
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: GetForegroundWindowSpam
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:4308
- - C:\Windows\SysWOW64\netsh.exe
    netsh firewall add allowedprogram "C:\Users\Admin\AppData\Roaming\svchost.exe" "svchost.exe" ENABLE
    3⤵
    - Modifies Windows Firewall
    - Event Triggered Execution: Netsh Helper DLL
    - System Location Discovery: System Language Discovery
    PID:2764
- - C:\Windows\SysWOW64\taskkill.exe
    taskkill /F /IM Exsample.exe
    3⤵
    - System Location Discovery: System Language Discovery
    - Kills process with taskkill
    - Suspicious use of AdjustPrivilegeToken
    PID:4376

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Replication Through Removable Media

T1091

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

Replication Through Removable Media

T1091

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

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

Filesize
145KB

MD5
404d831747e7713f2ea6d859b52ce9b3

SHA1
dc26d4095a0362960985e0fd4e96d12f0b3279e6

SHA256
5ab75bde3a5b8fc855271e0d84b31deb5cea0c79bae87831b35a5fd0d0f30ea3

SHA512
84c1d6725123b84996d951a9d777c1bc070d06f2b060c9adaf01443dedacb95adddc6afdc42049f72bea90d3290bd38241cefbb167268e41c68f30e622420968

Download Submit
memory/4124-0-0x0000000073841000-0x0000000073842000-memory.dmp

Filesize
4KB

Download
memory/4124-1-0x0000000073840000-0x0000000073DF0000-memory.dmp

Filesize
5.7MB

Download
memory/4124-2-0x0000000073840000-0x0000000073DF0000-memory.dmp

Filesize
5.7MB

Download
memory/4124-10-0x0000000073840000-0x0000000073DF0000-memory.dmp

Filesize
5.7MB

Download
memory/4308-9-0x0000000073840000-0x0000000073DF0000-memory.dmp

Filesize
5.7MB

Download
memory/4308-11-0x0000000073840000-0x0000000073DF0000-memory.dmp

Filesize
5.7MB

Download
memory/4308-21-0x0000000073840000-0x0000000073DF0000-memory.dmp

Filesize
5.7MB

Download
memory/4308-22-0x0000000073840000-0x0000000073DF0000-memory.dmp

Filesize
5.7MB

Download
memory/4308-23-0x0000000073840000-0x0000000073DF0000-memory.dmp

Filesize
5.7MB

Download