njrat | 8b103a00fbc87604c88d42e7fe05522bdfb1d2a2f50dfa395a9ade7c3f7442ce

General

Target

8b103a00fbc87604c88d42e7fe05522bdfb1d2a2f50dfa395a9ade7c3f7442ce.exe
Size

11KB
MD5

498f96b5db1890dc06c35b8d64bab9ca
SHA1

0db2e0a9c96b61b6d093666dc12a935cbec0fbff
SHA256

8b103a00fbc87604c88d42e7fe05522bdfb1d2a2f50dfa395a9ade7c3f7442ce
SHA512

d48ae6179c2d22646bc0aa5aa8dfc986b11fa1ffc856719b953c2f21837a84a13585aecca7f5a6020081caea2159cac644f844f8bc94ebe39cff404b476e7add
SSDEEP

192:zUBrnLG6AgDbLcTsdUOkxF+QKwIW1YPno6HDa9/OYJ4DxYNlNKq:cjrvcToUPxF+QKdno6HDa9WMcwlNP

Score

10^/10

njrat hacked discovery evasion persistence privilege_escalation trojan

Malware Config

Extracted

Family

njrat

Version

0.7d

Botnet

HacKed

C2

slt3zgq8.ddns.net:555

Mutex

5f3acc7a45540b22cf4ac8daf77dcddb

Attributes

reg_key
5f3acc7a45540b22cf4ac8daf77dcddb
splitter
|'|'|

Signatures

Njrat family
njrat
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
4384	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-1-5-21-3442511616-637977696-3186306149-1000\Control Panel\International\Geo\Nation	8b103a00fbc87604c88d42e7fe05522bdfb1d2a2f50dfa395a9ade7c3f7442ce.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\5f3acc7a45540b22cf4ac8daf77dcddb.exe	Executor.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\5f3acc7a45540b22cf4ac8daf77dcddb.exe	Executor.exe

Executes dropped EXE 1 IoCs

pid	Process
2576	Executor.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-1-5-21-3442511616-637977696-3186306149-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\5f3acc7a45540b22cf4ac8daf77dcddb = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\Executor.exe\" .."	Executor.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\5f3acc7a45540b22cf4ac8daf77dcddb = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\Executor.exe\" .."	Executor.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	8b103a00fbc87604c88d42e7fe05522bdfb1d2a2f50dfa395a9ade7c3f7442ce.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Executor.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe

Suspicious use of AdjustPrivilegeToken 34 IoCs

description	pid	Process
Token: SeDebugPrivilege	2756	8b103a00fbc87604c88d42e7fe05522bdfb1d2a2f50dfa395a9ade7c3f7442ce.exe
Token: SeDebugPrivilege	2576	Executor.exe
Token: 33	2576	Executor.exe
Token: SeIncBasePriorityPrivilege	2576	Executor.exe
Token: 33	2576	Executor.exe
Token: SeIncBasePriorityPrivilege	2576	Executor.exe
Token: 33	2576	Executor.exe
Token: SeIncBasePriorityPrivilege	2576	Executor.exe
Token: 33	2576	Executor.exe
Token: SeIncBasePriorityPrivilege	2576	Executor.exe
Token: 33	2576	Executor.exe
Token: SeIncBasePriorityPrivilege	2576	Executor.exe
Token: 33	2576	Executor.exe
Token: SeIncBasePriorityPrivilege	2576	Executor.exe
Token: 33	2576	Executor.exe
Token: SeIncBasePriorityPrivilege	2576	Executor.exe
Token: 33	2576	Executor.exe
Token: SeIncBasePriorityPrivilege	2576	Executor.exe
Token: 33	2576	Executor.exe
Token: SeIncBasePriorityPrivilege	2576	Executor.exe
Token: 33	2576	Executor.exe
Token: SeIncBasePriorityPrivilege	2576	Executor.exe
Token: 33	2576	Executor.exe
Token: SeIncBasePriorityPrivilege	2576	Executor.exe
Token: 33	2576	Executor.exe
Token: SeIncBasePriorityPrivilege	2576	Executor.exe
Token: 33	2576	Executor.exe
Token: SeIncBasePriorityPrivilege	2576	Executor.exe
Token: 33	2576	Executor.exe
Token: SeIncBasePriorityPrivilege	2576	Executor.exe
Token: 33	2576	Executor.exe
Token: SeIncBasePriorityPrivilege	2576	Executor.exe
Token: 33	2576	Executor.exe
Token: SeIncBasePriorityPrivilege	2576	Executor.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 2756 wrote to memory of 2576	2756	8b103a00fbc87604c88d42e7fe05522bdfb1d2a2f50dfa395a9ade7c3f7442ce.exe	87
PID 2756 wrote to memory of 2576	2756	8b103a00fbc87604c88d42e7fe05522bdfb1d2a2f50dfa395a9ade7c3f7442ce.exe	87
PID 2756 wrote to memory of 2576	2756	8b103a00fbc87604c88d42e7fe05522bdfb1d2a2f50dfa395a9ade7c3f7442ce.exe	87
PID 2576 wrote to memory of 4384	2576	Executor.exe	90
PID 2576 wrote to memory of 4384	2576	Executor.exe	90
PID 2576 wrote to memory of 4384	2576	Executor.exe	90

C:\Users\Admin\AppData\Local\Temp\8b103a00fbc87604c88d42e7fe05522bdfb1d2a2f50dfa395a9ade7c3f7442ce.exe
"C:\Users\Admin\AppData\Local\Temp\8b103a00fbc87604c88d42e7fe05522bdfb1d2a2f50dfa395a9ade7c3f7442ce.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2756
- C:\Users\Admin\AppData\Local\Temp\Executor.exe
  "C:\Users\Admin\AppData\Local\Temp\Executor.exe"
  2⤵
  - Drops startup file
  - Executes dropped EXE
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2576
- - C:\Windows\SysWOW64\netsh.exe
    netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\Executor.exe" "Executor.exe" ENABLE
    3⤵
    - Modifies Windows Firewall
    - Event Triggered Execution: Netsh Helper DLL
    - System Location Discovery: System Language Discovery
    PID:4384

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Create or Modify System Process

1

T1543

Windows Service

1

T1543.003

Event Triggered Execution

1

T1546

Netsh Helper DLL

1

T1546.007

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Create or Modify System Process

1

T1543

Windows Service

1

T1543.003

Event Triggered Execution

1

T1546

Netsh Helper DLL

1

T1546.007

Defense Evasion

Impair Defenses

1

T1562

Disable or Modify System Firewall

Modify Registry

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

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

Filesize
11KB

MD5
498f96b5db1890dc06c35b8d64bab9ca

SHA1
0db2e0a9c96b61b6d093666dc12a935cbec0fbff

SHA256
8b103a00fbc87604c88d42e7fe05522bdfb1d2a2f50dfa395a9ade7c3f7442ce

SHA512
d48ae6179c2d22646bc0aa5aa8dfc986b11fa1ffc856719b953c2f21837a84a13585aecca7f5a6020081caea2159cac644f844f8bc94ebe39cff404b476e7add

Download Submit
memory/2576-26-0x00000000750A0000-0x0000000075850000-memory.dmp

Filesize
7.7MB

Download
memory/2576-25-0x00000000750A0000-0x0000000075850000-memory.dmp

Filesize
7.7MB

Download
memory/2576-24-0x00000000069E0000-0x00000000069EA000-memory.dmp

Filesize
40KB

Download
memory/2576-22-0x00000000750A0000-0x0000000075850000-memory.dmp

Filesize
7.7MB

Download
memory/2576-21-0x00000000750A0000-0x0000000075850000-memory.dmp

Filesize
7.7MB

Download
memory/2756-6-0x00000000063F0000-0x0000000006994000-memory.dmp

Filesize
5.6MB

Download
memory/2756-0-0x00000000750AE000-0x00000000750AF000-memory.dmp

Filesize
4KB

Download
memory/2756-5-0x0000000005B00000-0x0000000005B0C000-memory.dmp

Filesize
48KB

Download
memory/2756-20-0x00000000750A0000-0x0000000075850000-memory.dmp

Filesize
7.7MB

Download
memory/2756-19-0x00000000750AE000-0x00000000750AF000-memory.dmp

Filesize
4KB

Download
memory/2756-4-0x00000000750A0000-0x0000000075850000-memory.dmp

Filesize
7.7MB

Download
memory/2756-3-0x0000000004DA0000-0x0000000004E3C000-memory.dmp

Filesize
624KB

Download
memory/2756-2-0x0000000004D00000-0x0000000004D92000-memory.dmp

Filesize
584KB

Download
memory/2756-1-0x0000000000310000-0x000000000031A000-memory.dmp

Filesize
40KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads