njrat | 8e1a79e5b3fb5504bf0ff03e5afee9b0e583c7c12e6948f9d2ef009fdaf7f411

General

Target

8e1a79e5b3fb5504bf0ff03e5afee9b0e583c7c12e6948f9d2ef009fdaf7f411N.exe
Size

863KB
MD5

eabac3adb5241da6df09c97b263811d0
SHA1

62a415bb864a72640160925d902e59a19f6a0b29
SHA256

8e1a79e5b3fb5504bf0ff03e5afee9b0e583c7c12e6948f9d2ef009fdaf7f411
SHA512

e466b1d065460c1adee33d2e3524fc2676784dcbc0383d227e7b4bbcd07805ee34fe0963b31e5f6b93b5406972bae003fe57b385ed090d32fbbd6d6c8b80f201
SSDEEP

12288:W4lsXvtCcmVVXzzn4PJAahPl/QEdIMiVbHydEIJnJWUgav7RyFq9MmCS:W4lavt0LkLL9IMixoEgeajRyFq9MmCS

Score

10^/10

njrat defense_evasion discovery persistence privilege_escalation trojan

Malware Config

Signatures

Njrat family
njrat

UAC bypass 3 TTPs 2 IoCs

defense_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"	8e1a79e5b3fb5504bf0ff03e5afee9b0e583c7c12e6948f9d2ef009fdaf7f411N.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	8e1a79e5b3fb5504bf0ff03e5afee9b0e583c7c12e6948f9d2ef009fdaf7f411N.exe

njRAT/Bladabindi
Widely used RAT written in .NET.
trojan njrat

Downloads MZ/PE file 1 IoCs

flow	pid	Process
39	2144	Process not Found

Modifies Windows Firewall 2 TTPs 1 IoCs

defense_evasion

Windows Service

T1543.003

Disable or Modify System Firewall

T1562.004

pid	Process
3664	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-1-5-21-1639772215-809007892-4072230623-1000\Control Panel\International\Geo\Nation	2116.exe
Key value queried	\REGISTRY\USER\S-1-5-21-1639772215-809007892-4072230623-1000\Control Panel\International\Geo\Nation	8e1a79e5b3fb5504bf0ff03e5afee9b0e583c7c12e6948f9d2ef009fdaf7f411N.exe

Executes dropped EXE 2 IoCs

pid	Process
1092	2116.exe
2660	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-1-5-21-1639772215-809007892-4072230623-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\279f6960ed84a752570aca7fb2dc1552 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\server.exe\" .."	server.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\279f6960ed84a752570aca7fb2dc1552 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\server.exe\" .."	server.exe

Checks whether UAC is enabled 1 TTPs 1 IoCs

defense_evasion trojan

System Information Discovery

T1082

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	8e1a79e5b3fb5504bf0ff03e5afee9b0e583c7c12e6948f9d2ef009fdaf7f411N.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 5 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	8e1a79e5b3fb5504bf0ff03e5afee9b0e583c7c12e6948f9d2ef009fdaf7f411N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2116.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	server.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	MicrosoftEdgeUpdate.exe

System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 1 IoCs

Adversaries may check for Internet connectivity on compromised systems.

discovery

Internet Connection Discovery

T1016.001

pid	Process
208	MicrosoftEdgeUpdate.exe

Suspicious use of AdjustPrivilegeToken 27 IoCs

description	pid	Process
Token: SeDebugPrivilege	2660	server.exe
Token: 33	2660	server.exe
Token: SeIncBasePriorityPrivilege	2660	server.exe
Token: 33	2660	server.exe
Token: SeIncBasePriorityPrivilege	2660	server.exe
Token: 33	2660	server.exe
Token: SeIncBasePriorityPrivilege	2660	server.exe
Token: 33	2660	server.exe
Token: SeIncBasePriorityPrivilege	2660	server.exe
Token: 33	2660	server.exe
Token: SeIncBasePriorityPrivilege	2660	server.exe
Token: 33	2660	server.exe
Token: SeIncBasePriorityPrivilege	2660	server.exe
Token: 33	2660	server.exe
Token: SeIncBasePriorityPrivilege	2660	server.exe
Token: 33	2660	server.exe
Token: SeIncBasePriorityPrivilege	2660	server.exe
Token: 33	2660	server.exe
Token: SeIncBasePriorityPrivilege	2660	server.exe
Token: 33	2660	server.exe
Token: SeIncBasePriorityPrivilege	2660	server.exe
Token: 33	2660	server.exe
Token: SeIncBasePriorityPrivilege	2660	server.exe
Token: 33	2660	server.exe
Token: SeIncBasePriorityPrivilege	2660	server.exe
Token: 33	2660	server.exe
Token: SeIncBasePriorityPrivilege	2660	server.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 3104 wrote to memory of 1092	3104	8e1a79e5b3fb5504bf0ff03e5afee9b0e583c7c12e6948f9d2ef009fdaf7f411N.exe	89
PID 3104 wrote to memory of 1092	3104	8e1a79e5b3fb5504bf0ff03e5afee9b0e583c7c12e6948f9d2ef009fdaf7f411N.exe	89
PID 3104 wrote to memory of 1092	3104	8e1a79e5b3fb5504bf0ff03e5afee9b0e583c7c12e6948f9d2ef009fdaf7f411N.exe	89
PID 1092 wrote to memory of 2660	1092	2116.exe	91
PID 1092 wrote to memory of 2660	1092	2116.exe	91
PID 1092 wrote to memory of 2660	1092	2116.exe	91
PID 2660 wrote to memory of 3664	2660	server.exe	92
PID 2660 wrote to memory of 3664	2660	server.exe	92
PID 2660 wrote to memory of 3664	2660	server.exe	92

System policy modification 1 TTPs 3 IoCs

defense_evasion

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System	8e1a79e5b3fb5504bf0ff03e5afee9b0e583c7c12e6948f9d2ef009fdaf7f411N.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\ConsentPromptBehaviorAdmin = "0"	8e1a79e5b3fb5504bf0ff03e5afee9b0e583c7c12e6948f9d2ef009fdaf7f411N.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	8e1a79e5b3fb5504bf0ff03e5afee9b0e583c7c12e6948f9d2ef009fdaf7f411N.exe

C:\Users\Admin\AppData\Local\Temp\8e1a79e5b3fb5504bf0ff03e5afee9b0e583c7c12e6948f9d2ef009fdaf7f411N.exe
"C:\Users\Admin\AppData\Local\Temp\8e1a79e5b3fb5504bf0ff03e5afee9b0e583c7c12e6948f9d2ef009fdaf7f411N.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:3104
- C:\Users\Admin\AppData\Local\Temp\2116\2116.exe
  "C:\Users\Admin\AppData\Local\Temp\2116\2116.exe"
  2⤵
  - Checks computer location settings
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:1092
- - 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:2660
  - - 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:3664

C:\Program Files (x86)\Microsoft\EdgeUpdate\MicrosoftEdgeUpdate.exe
"C:\Program Files (x86)\Microsoft\EdgeUpdate\MicrosoftEdgeUpdate.exe" /ping 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-PGFwcCBhcHBpZD0iezhBNjlEMzQ1LUQ1NjQtNDYzYy1BRkYxLUE2OUQ5RTUzMEY5Nn0iIHZlcnNpb249IjEyMy4wLjYzMTIuMTIzIiBuZXh0dmVyc2lvbj0iIiBsYW5nPSJlbiIgYnJhbmQ9IkdHTFMiIGNsaWVudD0iIiBpbnN0YWxsYWdlPSIxIiBpbnN0YWxsZGF0ZXRpbWU9IjE3Mzg5NDY4ODkiIG9vYmVfaW5zdGFsbF90aW1lPSIxMzM4MzQxOTM2NTgwOTAwMDAiPjxldmVudCBldmVudHR5cGU9IjMxIiBldmVudHJlc3VsdD0iMSIgZXJyb3Jjb2RlPSIwIiBleHRyYWNvZGUxPSIyMTc5ODYyIiBzeXN0ZW1fdXB0aW1lX3RpY2tzPSI1MzU4MjQ1ODE5Ii8-PC9hcHA-PC9yZXF1ZXN0Pg
1⤵
- System Location Discovery: System Language Discovery
- System Network Configuration Discovery: Internet Connection Discovery
PID:208

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

System Network Configuration Discovery

1

T1016

Internet Connection Discovery

1

T1016.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\2116\2116.exe

Filesize
23KB

MD5
b95f638c03d9aff47c4a08929319ffd7

SHA1
de6a8e03fe24b7982a1ed0b74c722ab7230c33b6

SHA256
28c07d58ab18392706f84c9e285ba484783bd6c30e012b5971c33db212aa0e51

SHA512
effdaee38e389abb97570b5e94e6c3acedb0b05fc200f2069b2c4bd54f4df0b1622f9332db983f1c563ca9c5152f02d95246e4fee832fd6a95ebe0159705cd56

Download Submit
memory/1092-9-0x00000000733B2000-0x00000000733B3000-memory.dmp

Filesize
4KB

Download
memory/1092-10-0x00000000733B0000-0x0000000073961000-memory.dmp

Filesize
5.7MB

Download
memory/1092-11-0x00000000733B0000-0x0000000073961000-memory.dmp

Filesize
5.7MB

Download
memory/1092-21-0x00000000733B0000-0x0000000073961000-memory.dmp

Filesize
5.7MB

Download
memory/2660-22-0x00000000733B0000-0x0000000073961000-memory.dmp

Filesize
5.7MB

Download
memory/2660-23-0x00000000733B0000-0x0000000073961000-memory.dmp

Filesize
5.7MB

Download
memory/2660-24-0x00000000733B0000-0x0000000073961000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads