njrat | 97dfa7469a3fd5751f30e091f4be7e5cc5cc0e9f4d82cd593438d471a212d9fe

General

Target

97dfa7469a3fd5751f30e091f4be7e5cc5cc0e9f4d82cd593438d471a212d9fe.exe
Size

23KB
MD5

3727aa4a3a0c22f4ee0973a532b4f0f1
SHA1

aa626e01fe50a2855cb74bb29ce0f0771003dd58
SHA256

97dfa7469a3fd5751f30e091f4be7e5cc5cc0e9f4d82cd593438d471a212d9fe
SHA512

6223b887288b9719ebf9aa0671b67f4e5c65217b2f5a615a9c11b13d7d672f15ba9d08cd016e4af673d1153740ce35b6f71fae2e77eb76d68a5f7824c63aae5e
SSDEEP

384:WoWtkEwn65rgjAsGipk55D16xgXakhbZD0mRvR6JZlbw8hqIusZzZId:J7O89p2rRpcnuz

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
3428	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-1-5-21-2045521122-590294423-3465680274-1000\Control Panel\International\Geo\Nation	97dfa7469a3fd5751f30e091f4be7e5cc5cc0e9f4d82cd593438d471a212d9fe.exe

Executes dropped EXE 1 IoCs

pid	Process
1544	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-1-5-21-2045521122-590294423-3465680274-1000\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	97dfa7469a3fd5751f30e091f4be7e5cc5cc0e9f4d82cd593438d471a212d9fe.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	1544	server.exe
Token: 33	1544	server.exe
Token: SeIncBasePriorityPrivilege	1544	server.exe
Token: 33	1544	server.exe
Token: SeIncBasePriorityPrivilege	1544	server.exe
Token: 33	1544	server.exe
Token: SeIncBasePriorityPrivilege	1544	server.exe
Token: 33	1544	server.exe
Token: SeIncBasePriorityPrivilege	1544	server.exe
Token: 33	1544	server.exe
Token: SeIncBasePriorityPrivilege	1544	server.exe
Token: 33	1544	server.exe
Token: SeIncBasePriorityPrivilege	1544	server.exe
Token: 33	1544	server.exe
Token: SeIncBasePriorityPrivilege	1544	server.exe
Token: 33	1544	server.exe
Token: SeIncBasePriorityPrivilege	1544	server.exe
Token: 33	1544	server.exe
Token: SeIncBasePriorityPrivilege	1544	server.exe
Token: 33	1544	server.exe
Token: SeIncBasePriorityPrivilege	1544	server.exe
Token: 33	1544	server.exe
Token: SeIncBasePriorityPrivilege	1544	server.exe
Token: 33	1544	server.exe
Token: SeIncBasePriorityPrivilege	1544	server.exe
Token: 33	1544	server.exe
Token: SeIncBasePriorityPrivilege	1544	server.exe
Token: 33	1544	server.exe
Token: SeIncBasePriorityPrivilege	1544	server.exe
Token: 33	1544	server.exe
Token: SeIncBasePriorityPrivilege	1544	server.exe
Token: 33	1544	server.exe
Token: SeIncBasePriorityPrivilege	1544	server.exe
Token: 33	1544	server.exe
Token: SeIncBasePriorityPrivilege	1544	server.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4564 wrote to memory of 1544	4564	97dfa7469a3fd5751f30e091f4be7e5cc5cc0e9f4d82cd593438d471a212d9fe.exe	94
PID 4564 wrote to memory of 1544	4564	97dfa7469a3fd5751f30e091f4be7e5cc5cc0e9f4d82cd593438d471a212d9fe.exe	94
PID 4564 wrote to memory of 1544	4564	97dfa7469a3fd5751f30e091f4be7e5cc5cc0e9f4d82cd593438d471a212d9fe.exe	94
PID 1544 wrote to memory of 3428	1544	server.exe	101
PID 1544 wrote to memory of 3428	1544	server.exe	101
PID 1544 wrote to memory of 3428	1544	server.exe	101

C:\Users\Admin\AppData\Local\Temp\97dfa7469a3fd5751f30e091f4be7e5cc5cc0e9f4d82cd593438d471a212d9fe.exe
"C:\Users\Admin\AppData\Local\Temp\97dfa7469a3fd5751f30e091f4be7e5cc5cc0e9f4d82cd593438d471a212d9fe.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4564
- 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:1544
- - 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:3428

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
3727aa4a3a0c22f4ee0973a532b4f0f1

SHA1
aa626e01fe50a2855cb74bb29ce0f0771003dd58

SHA256
97dfa7469a3fd5751f30e091f4be7e5cc5cc0e9f4d82cd593438d471a212d9fe

SHA512
6223b887288b9719ebf9aa0671b67f4e5c65217b2f5a615a9c11b13d7d672f15ba9d08cd016e4af673d1153740ce35b6f71fae2e77eb76d68a5f7824c63aae5e

Download Submit
memory/1544-13-0x0000000075430000-0x00000000759E1000-memory.dmp

Filesize
5.7MB

Download
memory/1544-14-0x0000000075430000-0x00000000759E1000-memory.dmp

Filesize
5.7MB

Download
memory/1544-15-0x0000000075430000-0x00000000759E1000-memory.dmp

Filesize
5.7MB

Download
memory/1544-16-0x0000000075430000-0x00000000759E1000-memory.dmp

Filesize
5.7MB

Download
memory/1544-17-0x0000000075430000-0x00000000759E1000-memory.dmp

Filesize
5.7MB

Download
memory/4564-0-0x0000000075432000-0x0000000075433000-memory.dmp

Filesize
4KB

Download
memory/4564-1-0x0000000075430000-0x00000000759E1000-memory.dmp

Filesize
5.7MB

Download
memory/4564-2-0x0000000075430000-0x00000000759E1000-memory.dmp

Filesize
5.7MB

Download
memory/4564-12-0x0000000075430000-0x00000000759E1000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads