njrat | eedbd3dacf55cd7cb9a367cfc67ad1bffe94094291397cb689ace2f76c7098f5

General

Target

eedbd3dacf55cd7cb9a367cfc67ad1bffe94094291397cb689ace2f76c7098f5N.exe
Size

23KB
MD5

d6fd585252e2b0938f6d90fce1b86010
SHA1

3c0db4b328a79f97b439739e87fcf87ba7fd6fd3
SHA256

eedbd3dacf55cd7cb9a367cfc67ad1bffe94094291397cb689ace2f76c7098f5
SHA512

432c8d4bca1c499e14b3ff8a0abb886861dd3f7664137c56b355f6134da791e12c365978ed0c1fe42f1cd921b67fe88f5d08a8059cb5063dbcded19a68df6615
SSDEEP

384:y8aY1ia0N/IH+WUiWiLcXyUTly2Rc87po6ngB8W+tqlf5mRvR6JZlbw8hqIusZzX:31Re/E+WUiW6ci6NR7tZRpcnuW

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
4924	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-1-5-21-4050598569-1597076380-177084960-1000\Control Panel\International\Geo\Nation	eedbd3dacf55cd7cb9a367cfc67ad1bffe94094291397cb689ace2f76c7098f5N.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\43e69094d76b8f4516f8f345104212b2.exe	server.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\43e69094d76b8f4516f8f345104212b2.exe	server.exe

Executes dropped EXE 1 IoCs

pid	Process
2892	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-1-5-21-4050598569-1597076380-177084960-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\43e69094d76b8f4516f8f345104212b2 = "\"C:\\ProgramData\\server.exe\" .."	server.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\43e69094d76b8f4516f8f345104212b2 = "\"C:\\ProgramData\\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	eedbd3dacf55cd7cb9a367cfc67ad1bffe94094291397cb689ace2f76c7098f5N.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	2892	server.exe
Token: 33	2892	server.exe
Token: SeIncBasePriorityPrivilege	2892	server.exe
Token: 33	2892	server.exe
Token: SeIncBasePriorityPrivilege	2892	server.exe
Token: 33	2892	server.exe
Token: SeIncBasePriorityPrivilege	2892	server.exe
Token: 33	2892	server.exe
Token: SeIncBasePriorityPrivilege	2892	server.exe
Token: 33	2892	server.exe
Token: SeIncBasePriorityPrivilege	2892	server.exe
Token: 33	2892	server.exe
Token: SeIncBasePriorityPrivilege	2892	server.exe
Token: 33	2892	server.exe
Token: SeIncBasePriorityPrivilege	2892	server.exe
Token: 33	2892	server.exe
Token: SeIncBasePriorityPrivilege	2892	server.exe
Token: 33	2892	server.exe
Token: SeIncBasePriorityPrivilege	2892	server.exe
Token: 33	2892	server.exe
Token: SeIncBasePriorityPrivilege	2892	server.exe
Token: 33	2892	server.exe
Token: SeIncBasePriorityPrivilege	2892	server.exe
Token: 33	2892	server.exe
Token: SeIncBasePriorityPrivilege	2892	server.exe
Token: 33	2892	server.exe
Token: SeIncBasePriorityPrivilege	2892	server.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 1004 wrote to memory of 2892	1004	eedbd3dacf55cd7cb9a367cfc67ad1bffe94094291397cb689ace2f76c7098f5N.exe	82
PID 1004 wrote to memory of 2892	1004	eedbd3dacf55cd7cb9a367cfc67ad1bffe94094291397cb689ace2f76c7098f5N.exe	82
PID 1004 wrote to memory of 2892	1004	eedbd3dacf55cd7cb9a367cfc67ad1bffe94094291397cb689ace2f76c7098f5N.exe	82
PID 2892 wrote to memory of 4924	2892	server.exe	87
PID 2892 wrote to memory of 4924	2892	server.exe	87
PID 2892 wrote to memory of 4924	2892	server.exe	87

C:\Users\Admin\AppData\Local\Temp\eedbd3dacf55cd7cb9a367cfc67ad1bffe94094291397cb689ace2f76c7098f5N.exe
"C:\Users\Admin\AppData\Local\Temp\eedbd3dacf55cd7cb9a367cfc67ad1bffe94094291397cb689ace2f76c7098f5N.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1004
- C:\ProgramData\server.exe
  "C:\ProgramData\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:2892
- - C:\Windows\SysWOW64\netsh.exe
    netsh firewall add allowedprogram "C:\ProgramData\server.exe" "server.exe" ENABLE
    3⤵
    - Modifies Windows Firewall
    - Event Triggered Execution: Netsh Helper DLL
    - System Location Discovery: System Language Discovery
    PID:4924

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:\ProgramData\server.exe

Filesize
23KB

MD5
d6fd585252e2b0938f6d90fce1b86010

SHA1
3c0db4b328a79f97b439739e87fcf87ba7fd6fd3

SHA256
eedbd3dacf55cd7cb9a367cfc67ad1bffe94094291397cb689ace2f76c7098f5

SHA512
432c8d4bca1c499e14b3ff8a0abb886861dd3f7664137c56b355f6134da791e12c365978ed0c1fe42f1cd921b67fe88f5d08a8059cb5063dbcded19a68df6615

Download Submit
memory/1004-0-0x0000000074B92000-0x0000000074B93000-memory.dmp

Filesize
4KB

Download
memory/1004-1-0x0000000074B90000-0x0000000075141000-memory.dmp

Filesize
5.7MB

Download
memory/1004-2-0x0000000074B90000-0x0000000075141000-memory.dmp

Filesize
5.7MB

Download
memory/1004-12-0x0000000074B90000-0x0000000075141000-memory.dmp

Filesize
5.7MB

Download
memory/2892-13-0x0000000074B90000-0x0000000075141000-memory.dmp

Filesize
5.7MB

Download
memory/2892-14-0x0000000074B90000-0x0000000075141000-memory.dmp

Filesize
5.7MB

Download
memory/2892-15-0x0000000074B90000-0x0000000075141000-memory.dmp

Filesize
5.7MB

Download
memory/2892-17-0x0000000074B90000-0x0000000075141000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads