njrat | 6b891e0ea4eaccd85e90755915d90e9066646feea730b7fb834887984b81cf93

General

Target

6b891e0ea4eaccd85e90755915d90e9066646feea730b7fb834887984b81cf93.exe
Size

23KB
MD5

20a31ef8589534ff51715dc0dd0a221a
SHA1

848e661b90295ee198bb137344dd197df4d0f368
SHA256

6b891e0ea4eaccd85e90755915d90e9066646feea730b7fb834887984b81cf93
SHA512

3a1d1ff8bd12888ffc833133a41fce12ab778289d9d799a22067399735b819ef79d2a3645c325eab678d33402d0c45b2447ed5e07bb22f00e60e1c2050129341
SSDEEP

384:wnoWtkEwn65rgjAsGipk55D16xgXakhbZD0mRvR6JZlbw8hqIusZzZI47:17O89p2rRpcnu+7

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
392	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	6b891e0ea4eaccd85e90755915d90e9066646feea730b7fb834887984b81cf93.exe

Executes dropped EXE 1 IoCs

pid	Process
1528	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-1-5-21-3442511616-637977696-3186306149-1000\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 queried	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key value enumerated	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key opened	\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	6b891e0ea4eaccd85e90755915d90e9066646feea730b7fb834887984b81cf93.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	server.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe

Suspicious use of AdjustPrivilegeToken 27 IoCs

description	pid	Process
Token: SeDebugPrivilege	1528	server.exe
Token: 33	1528	server.exe
Token: SeIncBasePriorityPrivilege	1528	server.exe
Token: 33	1528	server.exe
Token: SeIncBasePriorityPrivilege	1528	server.exe
Token: 33	1528	server.exe
Token: SeIncBasePriorityPrivilege	1528	server.exe
Token: 33	1528	server.exe
Token: SeIncBasePriorityPrivilege	1528	server.exe
Token: 33	1528	server.exe
Token: SeIncBasePriorityPrivilege	1528	server.exe
Token: 33	1528	server.exe
Token: SeIncBasePriorityPrivilege	1528	server.exe
Token: 33	1528	server.exe
Token: SeIncBasePriorityPrivilege	1528	server.exe
Token: 33	1528	server.exe
Token: SeIncBasePriorityPrivilege	1528	server.exe
Token: 33	1528	server.exe
Token: SeIncBasePriorityPrivilege	1528	server.exe
Token: 33	1528	server.exe
Token: SeIncBasePriorityPrivilege	1528	server.exe
Token: 33	1528	server.exe
Token: SeIncBasePriorityPrivilege	1528	server.exe
Token: 33	1528	server.exe
Token: SeIncBasePriorityPrivilege	1528	server.exe
Token: 33	1528	server.exe
Token: SeIncBasePriorityPrivilege	1528	server.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4004 wrote to memory of 1528	4004	6b891e0ea4eaccd85e90755915d90e9066646feea730b7fb834887984b81cf93.exe	86
PID 4004 wrote to memory of 1528	4004	6b891e0ea4eaccd85e90755915d90e9066646feea730b7fb834887984b81cf93.exe	86
PID 4004 wrote to memory of 1528	4004	6b891e0ea4eaccd85e90755915d90e9066646feea730b7fb834887984b81cf93.exe	86
PID 1528 wrote to memory of 392	1528	server.exe	90
PID 1528 wrote to memory of 392	1528	server.exe	90
PID 1528 wrote to memory of 392	1528	server.exe	90

C:\Users\Admin\AppData\Local\Temp\6b891e0ea4eaccd85e90755915d90e9066646feea730b7fb834887984b81cf93.exe
"C:\Users\Admin\AppData\Local\Temp\6b891e0ea4eaccd85e90755915d90e9066646feea730b7fb834887984b81cf93.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4004
- 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:1528
- - 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:392

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
20a31ef8589534ff51715dc0dd0a221a

SHA1
848e661b90295ee198bb137344dd197df4d0f368

SHA256
6b891e0ea4eaccd85e90755915d90e9066646feea730b7fb834887984b81cf93

SHA512
3a1d1ff8bd12888ffc833133a41fce12ab778289d9d799a22067399735b819ef79d2a3645c325eab678d33402d0c45b2447ed5e07bb22f00e60e1c2050129341

Download Submit
memory/1528-12-0x0000000074850000-0x0000000074E01000-memory.dmp

Filesize
5.7MB

Download
memory/1528-14-0x0000000074850000-0x0000000074E01000-memory.dmp

Filesize
5.7MB

Download
memory/1528-15-0x0000000074850000-0x0000000074E01000-memory.dmp

Filesize
5.7MB

Download
memory/4004-0-0x0000000074852000-0x0000000074853000-memory.dmp

Filesize
4KB

Download
memory/4004-1-0x0000000074850000-0x0000000074E01000-memory.dmp

Filesize
5.7MB

Download
memory/4004-2-0x0000000074850000-0x0000000074E01000-memory.dmp

Filesize
5.7MB

Download
memory/4004-13-0x0000000074850000-0x0000000074E01000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads