njrat | b0e9c6186d3c44315e0e7ac52a30271c2452c4518738c21149d59a06f109cf5d

General

Target

b0e9c6186d3c44315e0e7ac52a30271c2452c4518738c21149d59a06f109cf5d.exe
Size

23KB
MD5

289096a7dfa86410c8d43dce1e3e1984
SHA1

81fbb841533c1fbfb8f3c26b00930b97b7cf08fd
SHA256

b0e9c6186d3c44315e0e7ac52a30271c2452c4518738c21149d59a06f109cf5d
SHA512

6558b90f9913526886c574b6da0b4ee27554eebd7a008fa3f6a73b4f82a3778f524d4269eefb6a502e6eb78ea91967c45d7631a88d84678826556bb288bfa06d
SSDEEP

384:y8aLWS0dABLYVq6RxP8MDFF09vK563gRMmJKUv0mRvR6JZlbw8hqIusZzZhBp:lXcwt3tRpcnugp

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
1964	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-1-5-21-2437139445-1151884604-3026847218-1000\Control Panel\International\Geo\Nation	b0e9c6186d3c44315e0e7ac52a30271c2452c4518738c21149d59a06f109cf5d.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\2239074f375016b7c06b239673132d3c.exe	hi.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\2239074f375016b7c06b239673132d3c.exe	hi.exe

Executes dropped EXE 1 IoCs

pid	Process
3228	hi.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-1-5-21-2437139445-1151884604-3026847218-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\2239074f375016b7c06b239673132d3c = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\hi.exe\" .."	hi.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\2239074f375016b7c06b239673132d3c = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\hi.exe\" .."	hi.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	b0e9c6186d3c44315e0e7ac52a30271c2452c4518738c21149d59a06f109cf5d.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	hi.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe

Suspicious use of AdjustPrivilegeToken 27 IoCs

description	pid	Process
Token: SeDebugPrivilege	3228	hi.exe
Token: 33	3228	hi.exe
Token: SeIncBasePriorityPrivilege	3228	hi.exe
Token: 33	3228	hi.exe
Token: SeIncBasePriorityPrivilege	3228	hi.exe
Token: 33	3228	hi.exe
Token: SeIncBasePriorityPrivilege	3228	hi.exe
Token: 33	3228	hi.exe
Token: SeIncBasePriorityPrivilege	3228	hi.exe
Token: 33	3228	hi.exe
Token: SeIncBasePriorityPrivilege	3228	hi.exe
Token: 33	3228	hi.exe
Token: SeIncBasePriorityPrivilege	3228	hi.exe
Token: 33	3228	hi.exe
Token: SeIncBasePriorityPrivilege	3228	hi.exe
Token: 33	3228	hi.exe
Token: SeIncBasePriorityPrivilege	3228	hi.exe
Token: 33	3228	hi.exe
Token: SeIncBasePriorityPrivilege	3228	hi.exe
Token: 33	3228	hi.exe
Token: SeIncBasePriorityPrivilege	3228	hi.exe
Token: 33	3228	hi.exe
Token: SeIncBasePriorityPrivilege	3228	hi.exe
Token: 33	3228	hi.exe
Token: SeIncBasePriorityPrivilege	3228	hi.exe
Token: 33	3228	hi.exe
Token: SeIncBasePriorityPrivilege	3228	hi.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4776 wrote to memory of 3228	4776	b0e9c6186d3c44315e0e7ac52a30271c2452c4518738c21149d59a06f109cf5d.exe	90
PID 4776 wrote to memory of 3228	4776	b0e9c6186d3c44315e0e7ac52a30271c2452c4518738c21149d59a06f109cf5d.exe	90
PID 4776 wrote to memory of 3228	4776	b0e9c6186d3c44315e0e7ac52a30271c2452c4518738c21149d59a06f109cf5d.exe	90
PID 3228 wrote to memory of 1964	3228	hi.exe	97
PID 3228 wrote to memory of 1964	3228	hi.exe	97
PID 3228 wrote to memory of 1964	3228	hi.exe	97

C:\Users\Admin\AppData\Local\Temp\b0e9c6186d3c44315e0e7ac52a30271c2452c4518738c21149d59a06f109cf5d.exe
"C:\Users\Admin\AppData\Local\Temp\b0e9c6186d3c44315e0e7ac52a30271c2452c4518738c21149d59a06f109cf5d.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4776
- C:\Users\Admin\AppData\Local\Temp\hi.exe
  "C:\Users\Admin\AppData\Local\Temp\hi.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:3228
- - C:\Windows\SysWOW64\netsh.exe
    netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\hi.exe" "hi.exe" ENABLE
    3⤵
    - Modifies Windows Firewall
    - Event Triggered Execution: Netsh Helper DLL
    - System Location Discovery: System Language Discovery
    PID:1964

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\hi.exe

Filesize
23KB

MD5
289096a7dfa86410c8d43dce1e3e1984

SHA1
81fbb841533c1fbfb8f3c26b00930b97b7cf08fd

SHA256
b0e9c6186d3c44315e0e7ac52a30271c2452c4518738c21149d59a06f109cf5d

SHA512
6558b90f9913526886c574b6da0b4ee27554eebd7a008fa3f6a73b4f82a3778f524d4269eefb6a502e6eb78ea91967c45d7631a88d84678826556bb288bfa06d

Download Submit
memory/3228-13-0x0000000074610000-0x0000000074BC1000-memory.dmp

Filesize
5.7MB

Download
memory/3228-14-0x0000000074610000-0x0000000074BC1000-memory.dmp

Filesize
5.7MB

Download
memory/3228-16-0x0000000074610000-0x0000000074BC1000-memory.dmp

Filesize
5.7MB

Download
memory/3228-17-0x0000000074610000-0x0000000074BC1000-memory.dmp

Filesize
5.7MB

Download
memory/4776-0-0x0000000074612000-0x0000000074613000-memory.dmp

Filesize
4KB

Download
memory/4776-1-0x0000000074610000-0x0000000074BC1000-memory.dmp

Filesize
5.7MB

Download
memory/4776-2-0x0000000074610000-0x0000000074BC1000-memory.dmp

Filesize
5.7MB

Download
memory/4776-12-0x0000000074610000-0x0000000074BC1000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads