njrat | af9b13f209cb3854e56e139f4059ae664702e7d4d9ef61908d42492c1ecfdf00

General

Target

af9b13f209cb3854e56e139f4059ae664702e7d4d9ef61908d42492c1ecfdf00.exe
Size

23KB
MD5

c522ce8ab4ac33f7097a2a6a92988661
SHA1

d4107ab866a91c2b376bd55e727ea80f0aad98e3
SHA256

af9b13f209cb3854e56e139f4059ae664702e7d4d9ef61908d42492c1ecfdf00
SHA512

f93c2d16d459dfb6886888753a54dd4bca6e99cb7e8797bd861d51e189f1e84e1b6f3d99fa7b632409da2714d35a76055d0fac9c4b6a828cf7d545f900baa3f2
SSDEEP

384:XslUlEvOEJ8xWwYJOMiOBZEdJ156tgtwi5HhbQmRvR6JZlbw8hqIusZzZMfe:IeEvwIlLMRpcnua

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
216	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-1-5-21-3227495264-2217614367-4027411560-1000\Control Panel\International\Geo\Nation	af9b13f209cb3854e56e139f4059ae664702e7d4d9ef61908d42492c1ecfdf00.exe

Executes dropped EXE 1 IoCs

pid	Process
4856	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-1-5-21-3227495264-2217614367-4027411560-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\e13be9b20df56ddd0e76f11d87ee6557 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\server.exe\" .."	server.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\e13be9b20df56ddd0e76f11d87ee6557 = "\"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	af9b13f209cb3854e56e139f4059ae664702e7d4d9ef61908d42492c1ecfdf00.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	4856	server.exe
Token: 33	4856	server.exe
Token: SeIncBasePriorityPrivilege	4856	server.exe
Token: 33	4856	server.exe
Token: SeIncBasePriorityPrivilege	4856	server.exe
Token: 33	4856	server.exe
Token: SeIncBasePriorityPrivilege	4856	server.exe
Token: 33	4856	server.exe
Token: SeIncBasePriorityPrivilege	4856	server.exe
Token: 33	4856	server.exe
Token: SeIncBasePriorityPrivilege	4856	server.exe
Token: 33	4856	server.exe
Token: SeIncBasePriorityPrivilege	4856	server.exe
Token: 33	4856	server.exe
Token: SeIncBasePriorityPrivilege	4856	server.exe
Token: 33	4856	server.exe
Token: SeIncBasePriorityPrivilege	4856	server.exe
Token: 33	4856	server.exe
Token: SeIncBasePriorityPrivilege	4856	server.exe
Token: 33	4856	server.exe
Token: SeIncBasePriorityPrivilege	4856	server.exe
Token: 33	4856	server.exe
Token: SeIncBasePriorityPrivilege	4856	server.exe
Token: 33	4856	server.exe
Token: SeIncBasePriorityPrivilege	4856	server.exe
Token: 33	4856	server.exe
Token: SeIncBasePriorityPrivilege	4856	server.exe
Token: 33	4856	server.exe
Token: SeIncBasePriorityPrivilege	4856	server.exe
Token: 33	4856	server.exe
Token: SeIncBasePriorityPrivilege	4856	server.exe
Token: 33	4856	server.exe
Token: SeIncBasePriorityPrivilege	4856	server.exe
Token: 33	4856	server.exe
Token: SeIncBasePriorityPrivilege	4856	server.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 2332 wrote to memory of 4856	2332	af9b13f209cb3854e56e139f4059ae664702e7d4d9ef61908d42492c1ecfdf00.exe	85
PID 2332 wrote to memory of 4856	2332	af9b13f209cb3854e56e139f4059ae664702e7d4d9ef61908d42492c1ecfdf00.exe	85
PID 2332 wrote to memory of 4856	2332	af9b13f209cb3854e56e139f4059ae664702e7d4d9ef61908d42492c1ecfdf00.exe	85
PID 4856 wrote to memory of 216	4856	server.exe	90
PID 4856 wrote to memory of 216	4856	server.exe	90
PID 4856 wrote to memory of 216	4856	server.exe	90

C:\Users\Admin\AppData\Local\Temp\af9b13f209cb3854e56e139f4059ae664702e7d4d9ef61908d42492c1ecfdf00.exe
"C:\Users\Admin\AppData\Local\Temp\af9b13f209cb3854e56e139f4059ae664702e7d4d9ef61908d42492c1ecfdf00.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2332
- 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:4856
- - 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:216

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
c522ce8ab4ac33f7097a2a6a92988661

SHA1
d4107ab866a91c2b376bd55e727ea80f0aad98e3

SHA256
af9b13f209cb3854e56e139f4059ae664702e7d4d9ef61908d42492c1ecfdf00

SHA512
f93c2d16d459dfb6886888753a54dd4bca6e99cb7e8797bd861d51e189f1e84e1b6f3d99fa7b632409da2714d35a76055d0fac9c4b6a828cf7d545f900baa3f2

Download Submit
memory/2332-0-0x0000000074CC2000-0x0000000074CC3000-memory.dmp

Filesize
4KB

Download
memory/2332-1-0x0000000074CC0000-0x0000000075271000-memory.dmp

Filesize
5.7MB

Download
memory/2332-2-0x0000000074CC0000-0x0000000075271000-memory.dmp

Filesize
5.7MB

Download
memory/2332-13-0x0000000074CC0000-0x0000000075271000-memory.dmp

Filesize
5.7MB

Download
memory/4856-12-0x0000000074CC0000-0x0000000075271000-memory.dmp

Filesize
5.7MB

Download
memory/4856-14-0x0000000074CC0000-0x0000000075271000-memory.dmp

Filesize
5.7MB

Download
memory/4856-15-0x0000000074CC0000-0x0000000075271000-memory.dmp

Filesize
5.7MB

Download
memory/4856-16-0x0000000074CC0000-0x0000000075271000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads