njrat | faff7be904b05772bcb670f93264dadb9fb8609daa8ffb081f5482cfac0f2993

General

Target

faff7be904b05772bcb670f93264dadb9fb8609daa8ffb081f5482cfac0f2993.exe
Size

23KB
MD5

f4b693162935ffdf51f0cbdac0954866
SHA1

fb20c4fd60139625147149b740526afd7c14fce3
SHA256

faff7be904b05772bcb670f93264dadb9fb8609daa8ffb081f5482cfac0f2993
SHA512

4f18dca94a564b1bc911261e2737f65c69950c0f5e29c5958c876b1485a1c4732f4d2dd380088e8e1f5350e3478248b4c81cd9f1523de64ab6ca1afb6e162745
SSDEEP

384:DoWtkEwn65rgjAsGipk55D16xgXakhbZD0mRvR6JZlbw8hqIusZzZIS:87O89p2rRpcnuc

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
3248	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	faff7be904b05772bcb670f93264dadb9fb8609daa8ffb081f5482cfac0f2993.exe

Executes dropped EXE 1 IoCs

pid	Process
3212	server.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\7657c14284185fbd3fb108b43c7467ba = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\server.exe\" .."	server.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\7657c14284185fbd3fb108b43c7467ba = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\server.exe\" .."	server.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 value enumerated	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key opened	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key queried	\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	faff7be904b05772bcb670f93264dadb9fb8609daa8ffb081f5482cfac0f2993.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	server.exe

Suspicious use of AdjustPrivilegeToken 35 IoCs

description	pid	Process
Token: SeDebugPrivilege	3212	server.exe
Token: 33	3212	server.exe
Token: SeIncBasePriorityPrivilege	3212	server.exe
Token: 33	3212	server.exe
Token: SeIncBasePriorityPrivilege	3212	server.exe
Token: 33	3212	server.exe
Token: SeIncBasePriorityPrivilege	3212	server.exe
Token: 33	3212	server.exe
Token: SeIncBasePriorityPrivilege	3212	server.exe
Token: 33	3212	server.exe
Token: SeIncBasePriorityPrivilege	3212	server.exe
Token: 33	3212	server.exe
Token: SeIncBasePriorityPrivilege	3212	server.exe
Token: 33	3212	server.exe
Token: SeIncBasePriorityPrivilege	3212	server.exe
Token: 33	3212	server.exe
Token: SeIncBasePriorityPrivilege	3212	server.exe
Token: 33	3212	server.exe
Token: SeIncBasePriorityPrivilege	3212	server.exe
Token: 33	3212	server.exe
Token: SeIncBasePriorityPrivilege	3212	server.exe
Token: 33	3212	server.exe
Token: SeIncBasePriorityPrivilege	3212	server.exe
Token: 33	3212	server.exe
Token: SeIncBasePriorityPrivilege	3212	server.exe
Token: 33	3212	server.exe
Token: SeIncBasePriorityPrivilege	3212	server.exe
Token: 33	3212	server.exe
Token: SeIncBasePriorityPrivilege	3212	server.exe
Token: 33	3212	server.exe
Token: SeIncBasePriorityPrivilege	3212	server.exe
Token: 33	3212	server.exe
Token: SeIncBasePriorityPrivilege	3212	server.exe
Token: 33	3212	server.exe
Token: SeIncBasePriorityPrivilege	3212	server.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4520 wrote to memory of 3212	4520	faff7be904b05772bcb670f93264dadb9fb8609daa8ffb081f5482cfac0f2993.exe	89
PID 4520 wrote to memory of 3212	4520	faff7be904b05772bcb670f93264dadb9fb8609daa8ffb081f5482cfac0f2993.exe	89
PID 4520 wrote to memory of 3212	4520	faff7be904b05772bcb670f93264dadb9fb8609daa8ffb081f5482cfac0f2993.exe	89
PID 3212 wrote to memory of 3248	3212	server.exe	92
PID 3212 wrote to memory of 3248	3212	server.exe	92
PID 3212 wrote to memory of 3248	3212	server.exe	92

C:\Users\Admin\AppData\Local\Temp\faff7be904b05772bcb670f93264dadb9fb8609daa8ffb081f5482cfac0f2993.exe
"C:\Users\Admin\AppData\Local\Temp\faff7be904b05772bcb670f93264dadb9fb8609daa8ffb081f5482cfac0f2993.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4520
- C:\Users\Admin\AppData\Local\Temp\server.exe
  "C:\Users\Admin\AppData\Local\Temp\server.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:3212
- - C:\Windows\SysWOW64\netsh.exe
    netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\server.exe" "server.exe" ENABLE
    3⤵
    - Modifies Windows Firewall
    - Event Triggered Execution: Netsh Helper DLL
    - System Location Discovery: System Language Discovery
    PID:3248

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\server.exe

Filesize
23KB

MD5
f4b693162935ffdf51f0cbdac0954866

SHA1
fb20c4fd60139625147149b740526afd7c14fce3

SHA256
faff7be904b05772bcb670f93264dadb9fb8609daa8ffb081f5482cfac0f2993

SHA512
4f18dca94a564b1bc911261e2737f65c69950c0f5e29c5958c876b1485a1c4732f4d2dd380088e8e1f5350e3478248b4c81cd9f1523de64ab6ca1afb6e162745

Download Submit
memory/3212-12-0x0000000074B80000-0x0000000075131000-memory.dmp

Filesize
5.7MB

Download
memory/3212-15-0x0000000074B80000-0x0000000075131000-memory.dmp

Filesize
5.7MB

Download
memory/3212-14-0x0000000074B80000-0x0000000075131000-memory.dmp

Filesize
5.7MB

Download
memory/3212-16-0x0000000074B80000-0x0000000075131000-memory.dmp

Filesize
5.7MB

Download
memory/4520-0-0x0000000074B82000-0x0000000074B83000-memory.dmp

Filesize
4KB

Download
memory/4520-1-0x0000000074B80000-0x0000000075131000-memory.dmp

Filesize
5.7MB

Download
memory/4520-2-0x0000000074B80000-0x0000000075131000-memory.dmp

Filesize
5.7MB

Download
memory/4520-13-0x0000000074B80000-0x0000000075131000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads