njrat | d5eaaa22cd69c6ddf1da7b0c8bd0cabbcda679810ed2d95839c08244235fbf81

General

Target

d5eaaa22cd69c6ddf1da7b0c8bd0cabbcda679810ed2d95839c08244235fbf81.exe
Size

23KB
MD5

a7a2022d715b3ecb85ea55de936f011b
SHA1

0200512447f2e95d1675b1833d008ea4a7ddaa94
SHA256

d5eaaa22cd69c6ddf1da7b0c8bd0cabbcda679810ed2d95839c08244235fbf81
SHA512

7a0910ef562cb5936ab94fa94dce05eec2d6add7d6c3be3e8ad79a9710bc4fc283aec2d2f20dc6d4b0d641df5a8b1e368e6438f8e04c8f24a61b262d60ce5901
SSDEEP

384:KY324bcgPiJLQrfARGSRUJsbY6vgvSMBD3t8mRvR6JZlbw8hqIusZzZMT:dL2s+tRARpcnu1

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
5024	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-1-5-21-493223053-2004649691-1575712786-1000\Control Panel\International\Geo\Nation	d5eaaa22cd69c6ddf1da7b0c8bd0cabbcda679810ed2d95839c08244235fbf81.exe

Executes dropped EXE 1 IoCs

pid	Process
4760	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-1-5-21-493223053-2004649691-1575712786-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\42db17215651017a223d2108cb096394 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\server.exe\" .."	server.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\42db17215651017a223d2108cb096394 = "\"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	d5eaaa22cd69c6ddf1da7b0c8bd0cabbcda679810ed2d95839c08244235fbf81.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	4760	server.exe
Token: 33	4760	server.exe
Token: SeIncBasePriorityPrivilege	4760	server.exe
Token: 33	4760	server.exe
Token: SeIncBasePriorityPrivilege	4760	server.exe
Token: 33	4760	server.exe
Token: SeIncBasePriorityPrivilege	4760	server.exe
Token: 33	4760	server.exe
Token: SeIncBasePriorityPrivilege	4760	server.exe
Token: 33	4760	server.exe
Token: SeIncBasePriorityPrivilege	4760	server.exe
Token: 33	4760	server.exe
Token: SeIncBasePriorityPrivilege	4760	server.exe
Token: 33	4760	server.exe
Token: SeIncBasePriorityPrivilege	4760	server.exe
Token: 33	4760	server.exe
Token: SeIncBasePriorityPrivilege	4760	server.exe
Token: 33	4760	server.exe
Token: SeIncBasePriorityPrivilege	4760	server.exe
Token: 33	4760	server.exe
Token: SeIncBasePriorityPrivilege	4760	server.exe
Token: 33	4760	server.exe
Token: SeIncBasePriorityPrivilege	4760	server.exe
Token: 33	4760	server.exe
Token: SeIncBasePriorityPrivilege	4760	server.exe
Token: 33	4760	server.exe
Token: SeIncBasePriorityPrivilege	4760	server.exe
Token: 33	4760	server.exe
Token: SeIncBasePriorityPrivilege	4760	server.exe
Token: 33	4760	server.exe
Token: SeIncBasePriorityPrivilege	4760	server.exe
Token: 33	4760	server.exe
Token: SeIncBasePriorityPrivilege	4760	server.exe
Token: 33	4760	server.exe
Token: SeIncBasePriorityPrivilege	4760	server.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 220 wrote to memory of 4760	220	d5eaaa22cd69c6ddf1da7b0c8bd0cabbcda679810ed2d95839c08244235fbf81.exe	84
PID 220 wrote to memory of 4760	220	d5eaaa22cd69c6ddf1da7b0c8bd0cabbcda679810ed2d95839c08244235fbf81.exe	84
PID 220 wrote to memory of 4760	220	d5eaaa22cd69c6ddf1da7b0c8bd0cabbcda679810ed2d95839c08244235fbf81.exe	84
PID 4760 wrote to memory of 5024	4760	server.exe	92
PID 4760 wrote to memory of 5024	4760	server.exe	92
PID 4760 wrote to memory of 5024	4760	server.exe	92

C:\Users\Admin\AppData\Local\Temp\d5eaaa22cd69c6ddf1da7b0c8bd0cabbcda679810ed2d95839c08244235fbf81.exe
"C:\Users\Admin\AppData\Local\Temp\d5eaaa22cd69c6ddf1da7b0c8bd0cabbcda679810ed2d95839c08244235fbf81.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:220
- 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:4760
- - 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:5024

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

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\server.exe

Filesize
23KB

MD5
a7a2022d715b3ecb85ea55de936f011b

SHA1
0200512447f2e95d1675b1833d008ea4a7ddaa94

SHA256
d5eaaa22cd69c6ddf1da7b0c8bd0cabbcda679810ed2d95839c08244235fbf81

SHA512
7a0910ef562cb5936ab94fa94dce05eec2d6add7d6c3be3e8ad79a9710bc4fc283aec2d2f20dc6d4b0d641df5a8b1e368e6438f8e04c8f24a61b262d60ce5901

Download Submit
memory/220-0-0x0000000075042000-0x0000000075043000-memory.dmp

Filesize
4KB

Download
memory/220-1-0x0000000075040000-0x00000000755F1000-memory.dmp

Filesize
5.7MB

Download
memory/220-2-0x0000000075040000-0x00000000755F1000-memory.dmp

Filesize
5.7MB

Download
memory/220-13-0x0000000075040000-0x00000000755F1000-memory.dmp

Filesize
5.7MB

Download
memory/4760-12-0x0000000075040000-0x00000000755F1000-memory.dmp

Filesize
5.7MB

Download
memory/4760-14-0x0000000075040000-0x00000000755F1000-memory.dmp

Filesize
5.7MB

Download
memory/4760-15-0x0000000075040000-0x00000000755F1000-memory.dmp

Filesize
5.7MB

Download
memory/4760-16-0x0000000075040000-0x00000000755F1000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads