njrat | 4ce4a034024c108c1ec4c38bc0235f3ab94b5f308199a5c60e3cd706bfb46854

Analysis

max time kernel
150s
max time network
148s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
27-01-2025 22:12

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General

Target

4ce4a034024c108c1ec4c38bc0235f3ab94b5f308199a5c60e3cd706bfb46854.exe
Size

183KB
MD5

0b786d749488d1dbce96ba6d70b81afb
SHA1

73d338f2788538fc3e082c0bcfda073bccb6c304
SHA256

4ce4a034024c108c1ec4c38bc0235f3ab94b5f308199a5c60e3cd706bfb46854
SHA512

a2e6478902481aba53f1cc6bd344c55aefc96d880939d33f8a91731983b329392ef75b7e11886809c5321e3e1176484bdd04e96eebd5f7021ba3a705f0f70585
SSDEEP

3072:kmh7/CUBBSUb4XVkF4HGaBEl6OygXlL2RFQoP7JmKWNFTkEt8QXrQQck+/lFOjzP:kmhbCdM4mMgR2RaKWfj8QXrAlMgM

Score

10^/10

njrat hacked defense_evasion discovery persistence privilege_escalation trojan

Malware Config

Extracted

Family

njrat

Version

im523

Botnet

HacKed

kkttyy.kro.kr:2859

Mutex

d059b6aa76c2da376867aa3188bcd31f

Attributes

reg_key
d059b6aa76c2da376867aa3188bcd31f
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
5080	netsh.exe

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\Control Panel\International\Geo\Nation	4ce4a034024c108c1ec4c38bc0235f3ab94b5f308199a5c60e3cd706bfb46854.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\d059b6aa76c2da376867aa3188bcd31f.exe	svchost.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\d059b6aa76c2da376867aa3188bcd31f.exe	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
4576	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-1-5-21-3756129449-3121373848-4276368241-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\d059b6aa76c2da376867aa3188bcd31f = "\"C:\\ProgramData\\svchost.exe\" .."	svchost.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\d059b6aa76c2da376867aa3188bcd31f = "\"C:\\ProgramData\\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	F:\autorun.inf	svchost.exe
File opened for modification	F:\autorun.inf	svchost.exe
File created	C:\autorun.inf	svchost.exe
File opened for modification	C:\autorun.inf	svchost.exe
File created	D:\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 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	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	4ce4a034024c108c1ec4c38bc0235f3ab94b5f308199a5c60e3cd706bfb46854.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
4576	svchost.exe
4576	svchost.exe
4576	svchost.exe
4576	svchost.exe
4576	svchost.exe
4576	svchost.exe
4576	svchost.exe
4576	svchost.exe
4576	svchost.exe
4576	svchost.exe
4576	svchost.exe
4576	svchost.exe
4576	svchost.exe
4576	svchost.exe
4576	svchost.exe
4576	svchost.exe
4576	svchost.exe
4576	svchost.exe
4576	svchost.exe
4576	svchost.exe
4576	svchost.exe
4576	svchost.exe
4576	svchost.exe
4576	svchost.exe
4576	svchost.exe
4576	svchost.exe
4576	svchost.exe
4576	svchost.exe
4576	svchost.exe
4576	svchost.exe
4576	svchost.exe
4576	svchost.exe
4576	svchost.exe
4576	svchost.exe
4576	svchost.exe
4576	svchost.exe
4576	svchost.exe
4576	svchost.exe
4576	svchost.exe
4576	svchost.exe
4576	svchost.exe
4576	svchost.exe
4576	svchost.exe
4576	svchost.exe
4576	svchost.exe
4576	svchost.exe
4576	svchost.exe
4576	svchost.exe
4576	svchost.exe
4576	svchost.exe
4576	svchost.exe
4576	svchost.exe
4576	svchost.exe
4576	svchost.exe
4576	svchost.exe
4576	svchost.exe
4576	svchost.exe
4576	svchost.exe
4576	svchost.exe
4576	svchost.exe
4576	svchost.exe
4576	svchost.exe
4576	svchost.exe
4576	svchost.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
4576	svchost.exe

Suspicious use of AdjustPrivilegeToken 35 IoCs

description	pid	Process
Token: SeDebugPrivilege	4576	svchost.exe
Token: 33	4576	svchost.exe
Token: SeIncBasePriorityPrivilege	4576	svchost.exe
Token: 33	4576	svchost.exe
Token: SeIncBasePriorityPrivilege	4576	svchost.exe
Token: 33	4576	svchost.exe
Token: SeIncBasePriorityPrivilege	4576	svchost.exe
Token: 33	4576	svchost.exe
Token: SeIncBasePriorityPrivilege	4576	svchost.exe
Token: 33	4576	svchost.exe
Token: SeIncBasePriorityPrivilege	4576	svchost.exe
Token: 33	4576	svchost.exe
Token: SeIncBasePriorityPrivilege	4576	svchost.exe
Token: 33	4576	svchost.exe
Token: SeIncBasePriorityPrivilege	4576	svchost.exe
Token: 33	4576	svchost.exe
Token: SeIncBasePriorityPrivilege	4576	svchost.exe
Token: 33	4576	svchost.exe
Token: SeIncBasePriorityPrivilege	4576	svchost.exe
Token: 33	4576	svchost.exe
Token: SeIncBasePriorityPrivilege	4576	svchost.exe
Token: 33	4576	svchost.exe
Token: SeIncBasePriorityPrivilege	4576	svchost.exe
Token: 33	4576	svchost.exe
Token: SeIncBasePriorityPrivilege	4576	svchost.exe
Token: 33	4576	svchost.exe
Token: SeIncBasePriorityPrivilege	4576	svchost.exe
Token: 33	4576	svchost.exe
Token: SeIncBasePriorityPrivilege	4576	svchost.exe
Token: 33	4576	svchost.exe
Token: SeIncBasePriorityPrivilege	4576	svchost.exe
Token: 33	4576	svchost.exe
Token: SeIncBasePriorityPrivilege	4576	svchost.exe
Token: 33	4576	svchost.exe
Token: SeIncBasePriorityPrivilege	4576	svchost.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4120 wrote to memory of 4576	4120	4ce4a034024c108c1ec4c38bc0235f3ab94b5f308199a5c60e3cd706bfb46854.exe	82
PID 4120 wrote to memory of 4576	4120	4ce4a034024c108c1ec4c38bc0235f3ab94b5f308199a5c60e3cd706bfb46854.exe	82
PID 4120 wrote to memory of 4576	4120	4ce4a034024c108c1ec4c38bc0235f3ab94b5f308199a5c60e3cd706bfb46854.exe	82
PID 4576 wrote to memory of 5080	4576	svchost.exe	87
PID 4576 wrote to memory of 5080	4576	svchost.exe	87
PID 4576 wrote to memory of 5080	4576	svchost.exe	87

C:\Users\Admin\AppData\Local\Temp\4ce4a034024c108c1ec4c38bc0235f3ab94b5f308199a5c60e3cd706bfb46854.exe
"C:\Users\Admin\AppData\Local\Temp\4ce4a034024c108c1ec4c38bc0235f3ab94b5f308199a5c60e3cd706bfb46854.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4120
- C:\ProgramData\svchost.exe
  "C:\ProgramData\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:4576
- - C:\Windows\SysWOW64\netsh.exe
    netsh firewall add allowedprogram "C:\ProgramData\svchost.exe" "svchost.exe" ENABLE
    3⤵
    - Modifies Windows Firewall
    - Event Triggered Execution: Netsh Helper DLL
    - System Location Discovery: System Language Discovery
    PID:5080

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

Query Registry

T1012

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:\ProgramData\svchost.exe

Filesize
183KB

MD5
0b786d749488d1dbce96ba6d70b81afb

SHA1
73d338f2788538fc3e082c0bcfda073bccb6c304

SHA256
4ce4a034024c108c1ec4c38bc0235f3ab94b5f308199a5c60e3cd706bfb46854

SHA512
a2e6478902481aba53f1cc6bd344c55aefc96d880939d33f8a91731983b329392ef75b7e11886809c5321e3e1176484bdd04e96eebd5f7021ba3a705f0f70585

Download Submit
memory/4120-7-0x00000000077C0000-0x000000000785C000-memory.dmp

Filesize
624KB

Download
memory/4120-2-0x0000000002BF0000-0x0000000002BFA000-memory.dmp

Filesize
40KB

Download
memory/4120-3-0x00000000744D0000-0x0000000074C80000-memory.dmp

Filesize
7.7MB

Download
memory/4120-4-0x0000000002D60000-0x0000000002D72000-memory.dmp

Filesize
72KB

Download
memory/4120-5-0x0000000007C90000-0x0000000008234000-memory.dmp

Filesize
5.6MB

Download
memory/4120-0-0x00000000744DE000-0x00000000744DF000-memory.dmp

Filesize
4KB

Download
memory/4120-6-0x0000000005330000-0x0000000005340000-memory.dmp

Filesize
64KB

Download
memory/4120-1-0x0000000000860000-0x0000000000894000-memory.dmp

Filesize
208KB

Download
memory/4120-20-0x00000000744D0000-0x0000000074C80000-memory.dmp

Filesize
7.7MB

Download
memory/4576-21-0x00000000744D0000-0x0000000074C80000-memory.dmp

Filesize
7.7MB

Download
memory/4576-31-0x00000000086E0000-0x0000000008772000-memory.dmp

Filesize
584KB

Download
memory/4576-32-0x0000000004F10000-0x0000000004F1A000-memory.dmp

Filesize
40KB

Download
memory/4576-33-0x00000000744D0000-0x0000000074C80000-memory.dmp

Filesize
7.7MB

Download