njrat | d955597ce66b897bd7032251713eb37170d4624b39be2cdec449a1e0ba160c79

General

Target

d955597ce66b897bd7032251713eb37170d4624b39be2cdec449a1e0ba160c79N.exe
Size

863KB
MD5

2211ba76a857777e0fb398f4a7dcb660
SHA1

7c4a5e49331eec455d7040c619543f95d5fc8ec1
SHA256

d955597ce66b897bd7032251713eb37170d4624b39be2cdec449a1e0ba160c79
SHA512

6cc3601c96c941dd3429edb3d03ad71d23856979cf72ec5e4cdef69c495536c3b66decc8e46c42dbc2a54b19e3e963efc5613e1216a297e883dbc7b9930bb287
SSDEEP

24576:e4lavt0LkLL9IMixoEgeasclqkq9MmCS:Jkwkn9IMHeasEPaPCS

Score

10^/10

njrat discovery evasion persistence privilege_escalation trojan

Malware Config

Signatures

Njrat family
njrat

UAC bypass 3 TTPs 2 IoCs

evasion trojan

Bypass User Account Control

T1548.002

Disable or Modify Tools

T1562.001

Modify Registry

T1112

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\ConsentPromptBehaviorAdmin = "0"	d955597ce66b897bd7032251713eb37170d4624b39be2cdec449a1e0ba160c79N.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	d955597ce66b897bd7032251713eb37170d4624b39be2cdec449a1e0ba160c79N.exe

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
1524	netsh.exe

Checks computer location settings 2 TTPs 2 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	d955597ce66b897bd7032251713eb37170d4624b39be2cdec449a1e0ba160c79N.exe
Key value queried	\REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\Control Panel\International\Geo\Nation	1240.exe

Executes dropped EXE 2 IoCs

pid	Process
4700	1240.exe
4452	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-1-5-21-1045960512-3948844814-3059691613-1000\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

Checks whether UAC is enabled 1 TTPs 1 IoCs

evasion trojan

System Information Discovery

T1082

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	d955597ce66b897bd7032251713eb37170d4624b39be2cdec449a1e0ba160c79N.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 4 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	d955597ce66b897bd7032251713eb37170d4624b39be2cdec449a1e0ba160c79N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	1240.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 35 IoCs

description	pid	Process
Token: SeDebugPrivilege	4452	server.exe
Token: 33	4452	server.exe
Token: SeIncBasePriorityPrivilege	4452	server.exe
Token: 33	4452	server.exe
Token: SeIncBasePriorityPrivilege	4452	server.exe
Token: 33	4452	server.exe
Token: SeIncBasePriorityPrivilege	4452	server.exe
Token: 33	4452	server.exe
Token: SeIncBasePriorityPrivilege	4452	server.exe
Token: 33	4452	server.exe
Token: SeIncBasePriorityPrivilege	4452	server.exe
Token: 33	4452	server.exe
Token: SeIncBasePriorityPrivilege	4452	server.exe
Token: 33	4452	server.exe
Token: SeIncBasePriorityPrivilege	4452	server.exe
Token: 33	4452	server.exe
Token: SeIncBasePriorityPrivilege	4452	server.exe
Token: 33	4452	server.exe
Token: SeIncBasePriorityPrivilege	4452	server.exe
Token: 33	4452	server.exe
Token: SeIncBasePriorityPrivilege	4452	server.exe
Token: 33	4452	server.exe
Token: SeIncBasePriorityPrivilege	4452	server.exe
Token: 33	4452	server.exe
Token: SeIncBasePriorityPrivilege	4452	server.exe
Token: 33	4452	server.exe
Token: SeIncBasePriorityPrivilege	4452	server.exe
Token: 33	4452	server.exe
Token: SeIncBasePriorityPrivilege	4452	server.exe
Token: 33	4452	server.exe
Token: SeIncBasePriorityPrivilege	4452	server.exe
Token: 33	4452	server.exe
Token: SeIncBasePriorityPrivilege	4452	server.exe
Token: 33	4452	server.exe
Token: SeIncBasePriorityPrivilege	4452	server.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 3940 wrote to memory of 4700	3940	d955597ce66b897bd7032251713eb37170d4624b39be2cdec449a1e0ba160c79N.exe	87
PID 3940 wrote to memory of 4700	3940	d955597ce66b897bd7032251713eb37170d4624b39be2cdec449a1e0ba160c79N.exe	87
PID 3940 wrote to memory of 4700	3940	d955597ce66b897bd7032251713eb37170d4624b39be2cdec449a1e0ba160c79N.exe	87
PID 4700 wrote to memory of 4452	4700	1240.exe	96
PID 4700 wrote to memory of 4452	4700	1240.exe	96
PID 4700 wrote to memory of 4452	4700	1240.exe	96
PID 4452 wrote to memory of 1524	4452	server.exe	102
PID 4452 wrote to memory of 1524	4452	server.exe	102
PID 4452 wrote to memory of 1524	4452	server.exe	102

System policy modification 1 TTPs 3 IoCs

evasion

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System	d955597ce66b897bd7032251713eb37170d4624b39be2cdec449a1e0ba160c79N.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\ConsentPromptBehaviorAdmin = "0"	d955597ce66b897bd7032251713eb37170d4624b39be2cdec449a1e0ba160c79N.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	d955597ce66b897bd7032251713eb37170d4624b39be2cdec449a1e0ba160c79N.exe

C:\Users\Admin\AppData\Local\Temp\d955597ce66b897bd7032251713eb37170d4624b39be2cdec449a1e0ba160c79N.exe
"C:\Users\Admin\AppData\Local\Temp\d955597ce66b897bd7032251713eb37170d4624b39be2cdec449a1e0ba160c79N.exe"
1⤵
- UAC bypass
- Checks computer location settings
- Checks whether UAC is enabled
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
- System policy modification
PID:3940
- C:\Users\Admin\AppData\Local\Temp\1240\1240.exe
  "C:\Users\Admin\AppData\Local\Temp\1240\1240.exe"
  2⤵
  - Checks computer location settings
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:4700
- - C:\Users\Admin\AppData\Local\Temp\server.exe
    "C:\Users\Admin\AppData\Local\Temp\server.exe"
    3⤵
    - Executes dropped EXE
    - Adds Run key to start application
    - System Location Discovery: System Language Discovery
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of WriteProcessMemory
    PID:4452
  - - C:\Windows\SysWOW64\netsh.exe
      netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\server.exe" "server.exe" ENABLE
      4⤵
      Modifies Windows Firewall
      Event Triggered Execution: Netsh Helper DLL
      System Location Discovery: System Language Discovery
      PID:1524

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

Abuse Elevation Control Mechanism

1

T1548

Bypass User Account Control

1

T1548.002

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

Abuse Elevation Control Mechanism

1

T1548

Bypass User Account Control

1

T1548.002

Impair Defenses

2

T1562

Disable or Modify System Firewall

1

T1562.004

Disable or Modify Tools

Modify Registry

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

3

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\1240\1240.exe

Filesize
23KB

MD5
7216a4369f49b3adf0374d455eed8269

SHA1
e4dea8828a3715f91777729a3eb2cca514516e0a

SHA256
03eabc1ceaa4c33bcc176c5d0b337d11773132b892c582e26303d61c9fa16a73

SHA512
d0982945a52cad902ac23ba0fa6a35bd1e8800e438f0007335c57bfad8e356a09a1b9ee98b60f724eac3eca7c64e9fb4335324e80015cedc3f335864308f2fc2

Download Submit
memory/4452-21-0x00000000731D0000-0x0000000073781000-memory.dmp

Filesize
5.7MB

Download
memory/4452-23-0x00000000731D0000-0x0000000073781000-memory.dmp

Filesize
5.7MB

Download
memory/4452-24-0x00000000731D0000-0x0000000073781000-memory.dmp

Filesize
5.7MB

Download
memory/4452-25-0x00000000731D0000-0x0000000073781000-memory.dmp

Filesize
5.7MB

Download
memory/4700-9-0x00000000731D2000-0x00000000731D3000-memory.dmp

Filesize
4KB

Download
memory/4700-10-0x00000000731D0000-0x0000000073781000-memory.dmp

Filesize
5.7MB

Download
memory/4700-11-0x00000000731D0000-0x0000000073781000-memory.dmp

Filesize
5.7MB

Download
memory/4700-22-0x00000000731D0000-0x0000000073781000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads