njrat | 1e1161bb471db37a56a7026e1857ed0d1dc6acc9c7b735e0578d81511e3573cc

General

Target

1e1161bb471db37a56a7026e1857ed0d1dc6acc9c7b735e0578d81511e3573ccN.exe
Size

23KB
MD5

c71ac0327fa8739a207808cc911cb6c0
SHA1

3e2eb3221cdd7c7785c319d9d48899925770ad6d
SHA256

1e1161bb471db37a56a7026e1857ed0d1dc6acc9c7b735e0578d81511e3573cc
SHA512

b392324ecc403b2b685d8cd6644be58a86ff1888d411e2cb1f3c23b5ce0823c868ef131ad411cd0209e6608c1f3d514155974a3ebab56b3e87b821125bb60b2a
SSDEEP

384:GoWtkEwn65rgjAsGipk55D16xgXakhbZD0mRvR6JZlbw8hqIusZzZI+:57O89p2rRpcnuY

Score

10^/10

njrat discovery evasion persistence privilege_escalation trojan

Malware Config

Signatures

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
4356	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-1-5-21-656926755-4116854191-210765258-1000\Control Panel\International\Geo\Nation	1e1161bb471db37a56a7026e1857ed0d1dc6acc9c7b735e0578d81511e3573ccN.exe

Executes dropped EXE 1 IoCs

pid	Process
4736	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-1-5-21-656926755-4116854191-210765258-1000\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	1e1161bb471db37a56a7026e1857ed0d1dc6acc9c7b735e0578d81511e3573ccN.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	4736	server.exe
Token: 33	4736	server.exe
Token: SeIncBasePriorityPrivilege	4736	server.exe
Token: 33	4736	server.exe
Token: SeIncBasePriorityPrivilege	4736	server.exe
Token: 33	4736	server.exe
Token: SeIncBasePriorityPrivilege	4736	server.exe
Token: 33	4736	server.exe
Token: SeIncBasePriorityPrivilege	4736	server.exe
Token: 33	4736	server.exe
Token: SeIncBasePriorityPrivilege	4736	server.exe
Token: 33	4736	server.exe
Token: SeIncBasePriorityPrivilege	4736	server.exe
Token: 33	4736	server.exe
Token: SeIncBasePriorityPrivilege	4736	server.exe
Token: 33	4736	server.exe
Token: SeIncBasePriorityPrivilege	4736	server.exe
Token: 33	4736	server.exe
Token: SeIncBasePriorityPrivilege	4736	server.exe
Token: 33	4736	server.exe
Token: SeIncBasePriorityPrivilege	4736	server.exe
Token: 33	4736	server.exe
Token: SeIncBasePriorityPrivilege	4736	server.exe
Token: 33	4736	server.exe
Token: SeIncBasePriorityPrivilege	4736	server.exe
Token: 33	4736	server.exe
Token: SeIncBasePriorityPrivilege	4736	server.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 1300 wrote to memory of 4736	1300	1e1161bb471db37a56a7026e1857ed0d1dc6acc9c7b735e0578d81511e3573ccN.exe	84
PID 1300 wrote to memory of 4736	1300	1e1161bb471db37a56a7026e1857ed0d1dc6acc9c7b735e0578d81511e3573ccN.exe	84
PID 1300 wrote to memory of 4736	1300	1e1161bb471db37a56a7026e1857ed0d1dc6acc9c7b735e0578d81511e3573ccN.exe	84
PID 4736 wrote to memory of 4356	4736	server.exe	87
PID 4736 wrote to memory of 4356	4736	server.exe	87
PID 4736 wrote to memory of 4356	4736	server.exe	87

C:\Users\Admin\AppData\Local\Temp\1e1161bb471db37a56a7026e1857ed0d1dc6acc9c7b735e0578d81511e3573ccN.exe
"C:\Users\Admin\AppData\Local\Temp\1e1161bb471db37a56a7026e1857ed0d1dc6acc9c7b735e0578d81511e3573ccN.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1300
- 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:4736
- - 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:4356

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
c71ac0327fa8739a207808cc911cb6c0

SHA1
3e2eb3221cdd7c7785c319d9d48899925770ad6d

SHA256
1e1161bb471db37a56a7026e1857ed0d1dc6acc9c7b735e0578d81511e3573cc

SHA512
b392324ecc403b2b685d8cd6644be58a86ff1888d411e2cb1f3c23b5ce0823c868ef131ad411cd0209e6608c1f3d514155974a3ebab56b3e87b821125bb60b2a

Download Submit
memory/1300-0-0x0000000075272000-0x0000000075273000-memory.dmp

Filesize
4KB

Download
memory/1300-1-0x0000000075270000-0x0000000075821000-memory.dmp

Filesize
5.7MB

Download
memory/1300-2-0x0000000075270000-0x0000000075821000-memory.dmp

Filesize
5.7MB

Download
memory/1300-14-0x0000000075270000-0x0000000075821000-memory.dmp

Filesize
5.7MB

Download
memory/4736-12-0x0000000075270000-0x0000000075821000-memory.dmp

Filesize
5.7MB

Download
memory/4736-15-0x0000000075270000-0x0000000075821000-memory.dmp

Filesize
5.7MB

Download
memory/4736-13-0x0000000075270000-0x0000000075821000-memory.dmp

Filesize
5.7MB

Download
memory/4736-16-0x0000000075270000-0x0000000075821000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads