njrat | 72f75f004779cc74a7e0a65003291fd2b6cb5cdd281e84770590c7332ba8ebf0

General

Target

72f75f004779cc74a7e0a65003291fd2b6cb5cdd281e84770590c7332ba8ebf0N.exe
Size

23KB
MD5

e5aa4c945fe4d8cbdbad1fb9d92797f0
SHA1

60e96f9fac150208f8572dbff2ca9bac8badda24
SHA256

72f75f004779cc74a7e0a65003291fd2b6cb5cdd281e84770590c7332ba8ebf0
SHA512

458ce846fe2762015f4446a3c5da251210ff342cfe5f98ad025672e95f3bd8c5554cba9718388eb3e156f0d81def9901f03c55573d5bf47ab9d5c4c6a8b25465
SSDEEP

384:OsqS+ER6vRKXGYKRWVSujUtX9w6Vglo61Z5DVmRvR6JZlbw8hqIusZzZ2rhy:Zf65K2Yf1jMRpcnu3o

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
3056	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	72f75f004779cc74a7e0a65003291fd2b6cb5cdd281e84770590c7332ba8ebf0N.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\82cdaf622e8d1a0dc8d010baf1364143.exe	server.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\82cdaf622e8d1a0dc8d010baf1364143.exe	server.exe

Executes dropped EXE 1 IoCs

pid	Process
4528	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\82cdaf622e8d1a0dc8d010baf1364143 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\server.exe\" .."	server.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\82cdaf622e8d1a0dc8d010baf1364143 = "\"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	72f75f004779cc74a7e0a65003291fd2b6cb5cdd281e84770590c7332ba8ebf0N.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	4528	server.exe
Token: 33	4528	server.exe
Token: SeIncBasePriorityPrivilege	4528	server.exe
Token: 33	4528	server.exe
Token: SeIncBasePriorityPrivilege	4528	server.exe
Token: 33	4528	server.exe
Token: SeIncBasePriorityPrivilege	4528	server.exe
Token: 33	4528	server.exe
Token: SeIncBasePriorityPrivilege	4528	server.exe
Token: 33	4528	server.exe
Token: SeIncBasePriorityPrivilege	4528	server.exe
Token: 33	4528	server.exe
Token: SeIncBasePriorityPrivilege	4528	server.exe
Token: 33	4528	server.exe
Token: SeIncBasePriorityPrivilege	4528	server.exe
Token: 33	4528	server.exe
Token: SeIncBasePriorityPrivilege	4528	server.exe
Token: 33	4528	server.exe
Token: SeIncBasePriorityPrivilege	4528	server.exe
Token: 33	4528	server.exe
Token: SeIncBasePriorityPrivilege	4528	server.exe
Token: 33	4528	server.exe
Token: SeIncBasePriorityPrivilege	4528	server.exe
Token: 33	4528	server.exe
Token: SeIncBasePriorityPrivilege	4528	server.exe
Token: 33	4528	server.exe
Token: SeIncBasePriorityPrivilege	4528	server.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 2284 wrote to memory of 4528	2284	72f75f004779cc74a7e0a65003291fd2b6cb5cdd281e84770590c7332ba8ebf0N.exe	92
PID 2284 wrote to memory of 4528	2284	72f75f004779cc74a7e0a65003291fd2b6cb5cdd281e84770590c7332ba8ebf0N.exe	92
PID 2284 wrote to memory of 4528	2284	72f75f004779cc74a7e0a65003291fd2b6cb5cdd281e84770590c7332ba8ebf0N.exe	92
PID 4528 wrote to memory of 3056	4528	server.exe	100
PID 4528 wrote to memory of 3056	4528	server.exe	100
PID 4528 wrote to memory of 3056	4528	server.exe	100

C:\Users\Admin\AppData\Local\Temp\72f75f004779cc74a7e0a65003291fd2b6cb5cdd281e84770590c7332ba8ebf0N.exe
"C:\Users\Admin\AppData\Local\Temp\72f75f004779cc74a7e0a65003291fd2b6cb5cdd281e84770590c7332ba8ebf0N.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2284
- C:\Users\Admin\AppData\Local\Temp\server.exe
  "C:\Users\Admin\AppData\Local\Temp\server.exe"
  2⤵
  - Drops startup file
  - Executes dropped EXE
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:4528
- - 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:3056

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
e5aa4c945fe4d8cbdbad1fb9d92797f0

SHA1
60e96f9fac150208f8572dbff2ca9bac8badda24

SHA256
72f75f004779cc74a7e0a65003291fd2b6cb5cdd281e84770590c7332ba8ebf0

SHA512
458ce846fe2762015f4446a3c5da251210ff342cfe5f98ad025672e95f3bd8c5554cba9718388eb3e156f0d81def9901f03c55573d5bf47ab9d5c4c6a8b25465

Download Submit
memory/2284-0-0x0000000075432000-0x0000000075433000-memory.dmp

Filesize
4KB

Download
memory/2284-1-0x0000000075430000-0x00000000759E1000-memory.dmp

Filesize
5.7MB

Download
memory/2284-2-0x0000000075430000-0x00000000759E1000-memory.dmp

Filesize
5.7MB

Download
memory/2284-13-0x0000000075430000-0x00000000759E1000-memory.dmp

Filesize
5.7MB

Download
memory/4528-12-0x0000000075430000-0x00000000759E1000-memory.dmp

Filesize
5.7MB

Download
memory/4528-14-0x0000000075430000-0x00000000759E1000-memory.dmp

Filesize
5.7MB

Download
memory/4528-16-0x0000000075430000-0x00000000759E1000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads