njrat | a2b3a50c599366afe2dad57ab644526a097bec4006c1c5638acfe4ce8f65a072

General

Target

sample.exe
Size

23KB
MD5

96773da9ac7d11e77764abcc20ba9ede
SHA1

05b228dbeb75265f5fde2e5022b5bab86d52099a
SHA256

25c9fd4a388d0232468b883a1b4d5a12d27df4ed82946e31982691e4002daa73
SHA512

3f7c61c79108920e2238bf11754b506724682ec4f82aeb29e483b6b02095ad95a3f7530844e8808c556a74b6767aa945b6e5663009217bc9bb63740ca4950c73
SSDEEP

384:ppMKFYuEEhERvoBG16Xuy0MHNw6Tg1Y+75JTFmRvR6JZlbw8hqIusZzZ1Z:pCW4V6+yDRpcnuE

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
4732	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-1-5-21-1045960512-3948844814-3059691613-1000\Control Panel\International\Geo\Nation	sample.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\48a6df58cd0d566695640a0527388455.exe	Googler.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\48a6df58cd0d566695640a0527388455.exe	Googler.exe

Executes dropped EXE 1 IoCs

pid	Process
4400	Googler.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-1-5-21-1045960512-3948844814-3059691613-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\48a6df58cd0d566695640a0527388455 = "\"C:\\Users\\Admin\\AppData\\Roaming\\Googler.exe\" .."	Googler.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\48a6df58cd0d566695640a0527388455 = "\"C:\\Users\\Admin\\AppData\\Roaming\\Googler.exe\" .."	Googler.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	sample.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Googler.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe

Suspicious use of AdjustPrivilegeToken 35 IoCs

description	pid	Process
Token: SeDebugPrivilege	4400	Googler.exe
Token: 33	4400	Googler.exe
Token: SeIncBasePriorityPrivilege	4400	Googler.exe
Token: 33	4400	Googler.exe
Token: SeIncBasePriorityPrivilege	4400	Googler.exe
Token: 33	4400	Googler.exe
Token: SeIncBasePriorityPrivilege	4400	Googler.exe
Token: 33	4400	Googler.exe
Token: SeIncBasePriorityPrivilege	4400	Googler.exe
Token: 33	4400	Googler.exe
Token: SeIncBasePriorityPrivilege	4400	Googler.exe
Token: 33	4400	Googler.exe
Token: SeIncBasePriorityPrivilege	4400	Googler.exe
Token: 33	4400	Googler.exe
Token: SeIncBasePriorityPrivilege	4400	Googler.exe
Token: 33	4400	Googler.exe
Token: SeIncBasePriorityPrivilege	4400	Googler.exe
Token: 33	4400	Googler.exe
Token: SeIncBasePriorityPrivilege	4400	Googler.exe
Token: 33	4400	Googler.exe
Token: SeIncBasePriorityPrivilege	4400	Googler.exe
Token: 33	4400	Googler.exe
Token: SeIncBasePriorityPrivilege	4400	Googler.exe
Token: 33	4400	Googler.exe
Token: SeIncBasePriorityPrivilege	4400	Googler.exe
Token: 33	4400	Googler.exe
Token: SeIncBasePriorityPrivilege	4400	Googler.exe
Token: 33	4400	Googler.exe
Token: SeIncBasePriorityPrivilege	4400	Googler.exe
Token: 33	4400	Googler.exe
Token: SeIncBasePriorityPrivilege	4400	Googler.exe
Token: 33	4400	Googler.exe
Token: SeIncBasePriorityPrivilege	4400	Googler.exe
Token: 33	4400	Googler.exe
Token: SeIncBasePriorityPrivilege	4400	Googler.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 396 wrote to memory of 4400	396	sample.exe	84
PID 396 wrote to memory of 4400	396	sample.exe	84
PID 396 wrote to memory of 4400	396	sample.exe	84
PID 4400 wrote to memory of 4732	4400	Googler.exe	85
PID 4400 wrote to memory of 4732	4400	Googler.exe	85
PID 4400 wrote to memory of 4732	4400	Googler.exe	85

C:\Users\Admin\AppData\Local\Temp\sample.exe
"C:\Users\Admin\AppData\Local\Temp\sample.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:396
- C:\Users\Admin\AppData\Roaming\Googler.exe
  "C:\Users\Admin\AppData\Roaming\Googler.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:4400
- - C:\Windows\SysWOW64\netsh.exe
    netsh firewall add allowedprogram "C:\Users\Admin\AppData\Roaming\Googler.exe" "Googler.exe" ENABLE
    3⤵
    - Modifies Windows Firewall
    - Event Triggered Execution: Netsh Helper DLL
    - System Location Discovery: System Language Discovery
    PID:4732

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\Roaming\Googler.exe

Filesize
23KB

MD5
96773da9ac7d11e77764abcc20ba9ede

SHA1
05b228dbeb75265f5fde2e5022b5bab86d52099a

SHA256
25c9fd4a388d0232468b883a1b4d5a12d27df4ed82946e31982691e4002daa73

SHA512
3f7c61c79108920e2238bf11754b506724682ec4f82aeb29e483b6b02095ad95a3f7530844e8808c556a74b6767aa945b6e5663009217bc9bb63740ca4950c73

Download Submit
memory/396-0-0x00000000749D2000-0x00000000749D3000-memory.dmp

Filesize
4KB

Download
memory/396-1-0x00000000749D0000-0x0000000074F81000-memory.dmp

Filesize
5.7MB

Download
memory/396-2-0x00000000749D0000-0x0000000074F81000-memory.dmp

Filesize
5.7MB

Download
memory/396-13-0x00000000749D0000-0x0000000074F81000-memory.dmp

Filesize
5.7MB

Download
memory/4400-14-0x00000000749D0000-0x0000000074F81000-memory.dmp

Filesize
5.7MB

Download
memory/4400-15-0x00000000749D0000-0x0000000074F81000-memory.dmp

Filesize
5.7MB

Download
memory/4400-12-0x00000000749D0000-0x0000000074F81000-memory.dmp

Filesize
5.7MB

Download
memory/4400-17-0x00000000749D0000-0x0000000074F81000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads