njrat | 2c43d8a297448b14dacd130cf520c4c2a6626881454660a46b4d88415ae41e32

General

Target

2c43d8a297448b14dacd130cf520c4c2a6626881454660a46b4d88415ae41e32N.exe
Size

65KB
MD5

238a30e9eb78a74c018e0b2d602ea140
SHA1

ce425e2e719f1afb84f34e1a3ac6190302c414ba
SHA256

2c43d8a297448b14dacd130cf520c4c2a6626881454660a46b4d88415ae41e32
SHA512

d7faedc9814393945e052e6899f50d3cfda1812cdf499c1ab8fac449a16ae8381a70345f6e49fce421c4103bbf22cf07cf0e35da6876e19fbf23194d34048f7a
SSDEEP

768:jY+sNKqNHnSdRpcnuqhWYu2cbkxLuu0ycN:0+sdV+RWuq

Score

10^/10

njrat discovery evasion persistence privilege_escalation trojan

Malware Config

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
4144	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-1-5-21-3227495264-2217614367-4027411560-1000\Control Panel\International\Geo\Nation	2c43d8a297448b14dacd130cf520c4c2a6626881454660a46b4d88415ae41e32N.exe

Executes dropped EXE 1 IoCs

pid	Process
4520	teamsupdate.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-1-5-21-3227495264-2217614367-4027411560-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\9d253092f1a2b023ee6730bd5835421b = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\teamsupdate.exe\" .."	teamsupdate.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\9d253092f1a2b023ee6730bd5835421b = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\teamsupdate.exe\" .."	teamsupdate.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	2c43d8a297448b14dacd130cf520c4c2a6626881454660a46b4d88415ae41e32N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	teamsupdate.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe

Suspicious use of AdjustPrivilegeToken 27 IoCs

description	pid	Process
Token: SeDebugPrivilege	4520	teamsupdate.exe
Token: 33	4520	teamsupdate.exe
Token: SeIncBasePriorityPrivilege	4520	teamsupdate.exe
Token: 33	4520	teamsupdate.exe
Token: SeIncBasePriorityPrivilege	4520	teamsupdate.exe
Token: 33	4520	teamsupdate.exe
Token: SeIncBasePriorityPrivilege	4520	teamsupdate.exe
Token: 33	4520	teamsupdate.exe
Token: SeIncBasePriorityPrivilege	4520	teamsupdate.exe
Token: 33	4520	teamsupdate.exe
Token: SeIncBasePriorityPrivilege	4520	teamsupdate.exe
Token: 33	4520	teamsupdate.exe
Token: SeIncBasePriorityPrivilege	4520	teamsupdate.exe
Token: 33	4520	teamsupdate.exe
Token: SeIncBasePriorityPrivilege	4520	teamsupdate.exe
Token: 33	4520	teamsupdate.exe
Token: SeIncBasePriorityPrivilege	4520	teamsupdate.exe
Token: 33	4520	teamsupdate.exe
Token: SeIncBasePriorityPrivilege	4520	teamsupdate.exe
Token: 33	4520	teamsupdate.exe
Token: SeIncBasePriorityPrivilege	4520	teamsupdate.exe
Token: 33	4520	teamsupdate.exe
Token: SeIncBasePriorityPrivilege	4520	teamsupdate.exe
Token: 33	4520	teamsupdate.exe
Token: SeIncBasePriorityPrivilege	4520	teamsupdate.exe
Token: 33	4520	teamsupdate.exe
Token: SeIncBasePriorityPrivilege	4520	teamsupdate.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 3756 wrote to memory of 4520	3756	2c43d8a297448b14dacd130cf520c4c2a6626881454660a46b4d88415ae41e32N.exe	92
PID 3756 wrote to memory of 4520	3756	2c43d8a297448b14dacd130cf520c4c2a6626881454660a46b4d88415ae41e32N.exe	92
PID 3756 wrote to memory of 4520	3756	2c43d8a297448b14dacd130cf520c4c2a6626881454660a46b4d88415ae41e32N.exe	92
PID 4520 wrote to memory of 4144	4520	teamsupdate.exe	95
PID 4520 wrote to memory of 4144	4520	teamsupdate.exe	95
PID 4520 wrote to memory of 4144	4520	teamsupdate.exe	95

C:\Users\Admin\AppData\Local\Temp\2c43d8a297448b14dacd130cf520c4c2a6626881454660a46b4d88415ae41e32N.exe
"C:\Users\Admin\AppData\Local\Temp\2c43d8a297448b14dacd130cf520c4c2a6626881454660a46b4d88415ae41e32N.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3756
- C:\Users\Admin\AppData\Local\Temp\teamsupdate.exe
  "C:\Users\Admin\AppData\Local\Temp\teamsupdate.exe"
  2⤵
  - Executes dropped EXE
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:4520
- - C:\Windows\SysWOW64\netsh.exe
    netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\teamsupdate.exe" "teamsupdate.exe" ENABLE
    3⤵
    - Modifies Windows Firewall
    - Event Triggered Execution: Netsh Helper DLL
    - System Location Discovery: System Language Discovery
    PID:4144

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

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Downloads

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

Filesize
65KB

MD5
238a30e9eb78a74c018e0b2d602ea140

SHA1
ce425e2e719f1afb84f34e1a3ac6190302c414ba

SHA256
2c43d8a297448b14dacd130cf520c4c2a6626881454660a46b4d88415ae41e32

SHA512
d7faedc9814393945e052e6899f50d3cfda1812cdf499c1ab8fac449a16ae8381a70345f6e49fce421c4103bbf22cf07cf0e35da6876e19fbf23194d34048f7a

Download Submit
memory/3756-0-0x0000000074EA2000-0x0000000074EA3000-memory.dmp

Filesize
4KB

Download
memory/3756-1-0x0000000074EA0000-0x0000000075451000-memory.dmp

Filesize
5.7MB

Download
memory/3756-2-0x0000000074EA0000-0x0000000075451000-memory.dmp

Filesize
5.7MB

Download
memory/3756-12-0x0000000074EA0000-0x0000000075451000-memory.dmp

Filesize
5.7MB

Download
memory/4520-13-0x0000000074EA0000-0x0000000075451000-memory.dmp

Filesize
5.7MB

Download
memory/4520-14-0x0000000074EA0000-0x0000000075451000-memory.dmp

Filesize
5.7MB

Download
memory/4520-15-0x0000000074EA0000-0x0000000075451000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads