njrat | 35ab7511173a1e1ffe18a4128e40f0ba50fe85e9e8d2995287b697fd4ae027e5

General

Target

35ab7511173a1e1ffe18a4128e40f0ba50fe85e9e8d2995287b697fd4ae027e5N.exe
Size

23KB
MD5

63cb4bfb8a75c831ad74e88a3302eb10
SHA1

ae9b155a83f7c41ef762a3b608142a170dba65ac
SHA256

35ab7511173a1e1ffe18a4128e40f0ba50fe85e9e8d2995287b697fd4ae027e5
SHA512

b912b9ac58df5ae6d46d60c594f09a4d9cc3e7f6539dd89123f8bd444f8b58f2ed3e51659c9d8c0ae1b55ba6ec3164adaa48208491074e7314b844708c1b6544
SSDEEP

384:/oWtkEwn65rgjAsGipk55D16xgXakhbZD0mRvR6JZlbw8hqIusZzZI0:Y7O89p2rRpcnuG

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
4576	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-1-5-21-4050598569-1597076380-177084960-1000\Control Panel\International\Geo\Nation	35ab7511173a1e1ffe18a4128e40f0ba50fe85e9e8d2995287b697fd4ae027e5N.exe

Executes dropped EXE 1 IoCs

pid	Process
860	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-1-5-21-4050598569-1597076380-177084960-1000\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 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	35ab7511173a1e1ffe18a4128e40f0ba50fe85e9e8d2995287b697fd4ae027e5N.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	860	server.exe
Token: 33	860	server.exe
Token: SeIncBasePriorityPrivilege	860	server.exe
Token: 33	860	server.exe
Token: SeIncBasePriorityPrivilege	860	server.exe
Token: 33	860	server.exe
Token: SeIncBasePriorityPrivilege	860	server.exe
Token: 33	860	server.exe
Token: SeIncBasePriorityPrivilege	860	server.exe
Token: 33	860	server.exe
Token: SeIncBasePriorityPrivilege	860	server.exe
Token: 33	860	server.exe
Token: SeIncBasePriorityPrivilege	860	server.exe
Token: 33	860	server.exe
Token: SeIncBasePriorityPrivilege	860	server.exe
Token: 33	860	server.exe
Token: SeIncBasePriorityPrivilege	860	server.exe
Token: 33	860	server.exe
Token: SeIncBasePriorityPrivilege	860	server.exe
Token: 33	860	server.exe
Token: SeIncBasePriorityPrivilege	860	server.exe
Token: 33	860	server.exe
Token: SeIncBasePriorityPrivilege	860	server.exe
Token: 33	860	server.exe
Token: SeIncBasePriorityPrivilege	860	server.exe
Token: 33	860	server.exe
Token: SeIncBasePriorityPrivilege	860	server.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 1524 wrote to memory of 860	1524	35ab7511173a1e1ffe18a4128e40f0ba50fe85e9e8d2995287b697fd4ae027e5N.exe	92
PID 1524 wrote to memory of 860	1524	35ab7511173a1e1ffe18a4128e40f0ba50fe85e9e8d2995287b697fd4ae027e5N.exe	92
PID 1524 wrote to memory of 860	1524	35ab7511173a1e1ffe18a4128e40f0ba50fe85e9e8d2995287b697fd4ae027e5N.exe	92
PID 860 wrote to memory of 4576	860	server.exe	95
PID 860 wrote to memory of 4576	860	server.exe	95
PID 860 wrote to memory of 4576	860	server.exe	95

C:\Users\Admin\AppData\Local\Temp\35ab7511173a1e1ffe18a4128e40f0ba50fe85e9e8d2995287b697fd4ae027e5N.exe
"C:\Users\Admin\AppData\Local\Temp\35ab7511173a1e1ffe18a4128e40f0ba50fe85e9e8d2995287b697fd4ae027e5N.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1524
- 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:860
- - 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:4576

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
63cb4bfb8a75c831ad74e88a3302eb10

SHA1
ae9b155a83f7c41ef762a3b608142a170dba65ac

SHA256
35ab7511173a1e1ffe18a4128e40f0ba50fe85e9e8d2995287b697fd4ae027e5

SHA512
b912b9ac58df5ae6d46d60c594f09a4d9cc3e7f6539dd89123f8bd444f8b58f2ed3e51659c9d8c0ae1b55ba6ec3164adaa48208491074e7314b844708c1b6544

Download Submit
memory/860-12-0x0000000074D20000-0x00000000752D1000-memory.dmp

Filesize
5.7MB

Download
memory/860-14-0x0000000074D20000-0x00000000752D1000-memory.dmp

Filesize
5.7MB

Download
memory/860-15-0x0000000074D20000-0x00000000752D1000-memory.dmp

Filesize
5.7MB

Download
memory/1524-0-0x0000000074D22000-0x0000000074D23000-memory.dmp

Filesize
4KB

Download
memory/1524-1-0x0000000074D20000-0x00000000752D1000-memory.dmp

Filesize
5.7MB

Download
memory/1524-2-0x0000000074D20000-0x00000000752D1000-memory.dmp

Filesize
5.7MB

Download
memory/1524-13-0x0000000074D20000-0x00000000752D1000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads