njrat | c23e5c3cd0787708772eeb611bcf95e0fcabeacc1a276e2fdf4a95ced33a7de4

General

Target

c23e5c3cd0787708772eeb611bcf95e0fcabeacc1a276e2fdf4a95ced33a7de4N.exe
Size

23KB
MD5

877b6a6f72faa6b0116aca386eda31c0
SHA1

7662c9661b815724aa24524dad25cd830c6a3f46
SHA256

c23e5c3cd0787708772eeb611bcf95e0fcabeacc1a276e2fdf4a95ced33a7de4
SHA512

57665b6d27d6ec0f37f54c0a1035d8b2b43bb5b96bcb362f5cfc5381c001a35bdc5f613d004b15ad23148758dc9bff1da93114b1f210694ab930a32c0f476435
SSDEEP

384:08aLWS0dABLYVq6RxP8MDFF09vK563gRMmJKUv0mRvR6JZlbw8hqIusZzZpD:TXcwt3tRpcnua

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
344	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-1-5-21-786284298-625481688-3210388970-1000\Control Panel\International\Geo\Nation	c23e5c3cd0787708772eeb611bcf95e0fcabeacc1a276e2fdf4a95ced33a7de4N.exe

Executes dropped EXE 1 IoCs

pid	Process
4296	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-1-5-21-786284298-625481688-3210388970-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\33f9e1d6fefce618b71a50ca08e3da67 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\server.exe\" .."	server.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\33f9e1d6fefce618b71a50ca08e3da67 = "\"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	server.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	c23e5c3cd0787708772eeb611bcf95e0fcabeacc1a276e2fdf4a95ced33a7de4N.exe

Suspicious use of AdjustPrivilegeToken 27 IoCs

description	pid	Process
Token: SeDebugPrivilege	4296	server.exe
Token: 33	4296	server.exe
Token: SeIncBasePriorityPrivilege	4296	server.exe
Token: 33	4296	server.exe
Token: SeIncBasePriorityPrivilege	4296	server.exe
Token: 33	4296	server.exe
Token: SeIncBasePriorityPrivilege	4296	server.exe
Token: 33	4296	server.exe
Token: SeIncBasePriorityPrivilege	4296	server.exe
Token: 33	4296	server.exe
Token: SeIncBasePriorityPrivilege	4296	server.exe
Token: 33	4296	server.exe
Token: SeIncBasePriorityPrivilege	4296	server.exe
Token: 33	4296	server.exe
Token: SeIncBasePriorityPrivilege	4296	server.exe
Token: 33	4296	server.exe
Token: SeIncBasePriorityPrivilege	4296	server.exe
Token: 33	4296	server.exe
Token: SeIncBasePriorityPrivilege	4296	server.exe
Token: 33	4296	server.exe
Token: SeIncBasePriorityPrivilege	4296	server.exe
Token: 33	4296	server.exe
Token: SeIncBasePriorityPrivilege	4296	server.exe
Token: 33	4296	server.exe
Token: SeIncBasePriorityPrivilege	4296	server.exe
Token: 33	4296	server.exe
Token: SeIncBasePriorityPrivilege	4296	server.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 2320 wrote to memory of 4296	2320	c23e5c3cd0787708772eeb611bcf95e0fcabeacc1a276e2fdf4a95ced33a7de4N.exe	84
PID 2320 wrote to memory of 4296	2320	c23e5c3cd0787708772eeb611bcf95e0fcabeacc1a276e2fdf4a95ced33a7de4N.exe	84
PID 2320 wrote to memory of 4296	2320	c23e5c3cd0787708772eeb611bcf95e0fcabeacc1a276e2fdf4a95ced33a7de4N.exe	84
PID 4296 wrote to memory of 344	4296	server.exe	88
PID 4296 wrote to memory of 344	4296	server.exe	88
PID 4296 wrote to memory of 344	4296	server.exe	88

C:\Users\Admin\AppData\Local\Temp\c23e5c3cd0787708772eeb611bcf95e0fcabeacc1a276e2fdf4a95ced33a7de4N.exe
"C:\Users\Admin\AppData\Local\Temp\c23e5c3cd0787708772eeb611bcf95e0fcabeacc1a276e2fdf4a95ced33a7de4N.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2320
- 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:4296
- - 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:344

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
877b6a6f72faa6b0116aca386eda31c0

SHA1
7662c9661b815724aa24524dad25cd830c6a3f46

SHA256
c23e5c3cd0787708772eeb611bcf95e0fcabeacc1a276e2fdf4a95ced33a7de4

SHA512
57665b6d27d6ec0f37f54c0a1035d8b2b43bb5b96bcb362f5cfc5381c001a35bdc5f613d004b15ad23148758dc9bff1da93114b1f210694ab930a32c0f476435

Download Submit
memory/2320-0-0x0000000074A52000-0x0000000074A53000-memory.dmp

Filesize
4KB

Download
memory/2320-1-0x0000000074A50000-0x0000000075001000-memory.dmp

Filesize
5.7MB

Download
memory/2320-2-0x0000000074A50000-0x0000000075001000-memory.dmp

Filesize
5.7MB

Download
memory/2320-13-0x0000000074A50000-0x0000000075001000-memory.dmp

Filesize
5.7MB

Download
memory/4296-12-0x0000000074A50000-0x0000000075001000-memory.dmp

Filesize
5.7MB

Download
memory/4296-14-0x0000000074A50000-0x0000000075001000-memory.dmp

Filesize
5.7MB

Download
memory/4296-15-0x0000000074A50000-0x0000000075001000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads