njrat | 4a67b99e3b666fdb104edeb7e51db77269fb93744027d8c67022f8ecdaf5141f

General

Target

4a67b99e3b666fdb104edeb7e51db77269fb93744027d8c67022f8ecdaf5141f.exe
Size

1.5MB
MD5

4c471dbef461ae0fc6401bff21f00ecb
SHA1

80a2f9c98e682e53da78fdd9c6dc3e81c43c225b
SHA256

4a67b99e3b666fdb104edeb7e51db77269fb93744027d8c67022f8ecdaf5141f
SHA512

52150ebe1eafec1a550c7451ad75aa65713b1ad9552195cf8029ac05dcbb03575c69d8dc6cf6157494a984fbe66284a598734b3701823ab3b9c9e30c3ff69ab8
SSDEEP

24576:8NLiXDlSnES+fok9RRpYtUFLWkfRSr2cXcmbS0Kt:aGDl4+JReBcRw3+/t

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
184	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-1-5-21-945322488-2060912225-3527527000-1000\Control Panel\International\Geo\Nation	4a67b99e3b666fdb104edeb7e51db77269fb93744027d8c67022f8ecdaf5141f.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\36db42ed563b740681ec3918ded7c343.exe	facebok.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\36db42ed563b740681ec3918ded7c343.exe	facebok.exe

Executes dropped EXE 1 IoCs

pid	Process
4924	facebok.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-1-5-21-945322488-2060912225-3527527000-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\36db42ed563b740681ec3918ded7c343 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\facebok.exe\" .."	facebok.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\36db42ed563b740681ec3918ded7c343 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\facebok.exe\" .."	facebok.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	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	4a67b99e3b666fdb104edeb7e51db77269fb93744027d8c67022f8ecdaf5141f.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	facebok.exe

Suspicious use of AdjustPrivilegeToken 33 IoCs

description	pid	Process
Token: SeDebugPrivilege	4924	facebok.exe
Token: 33	4924	facebok.exe
Token: SeIncBasePriorityPrivilege	4924	facebok.exe
Token: 33	4924	facebok.exe
Token: SeIncBasePriorityPrivilege	4924	facebok.exe
Token: 33	4924	facebok.exe
Token: SeIncBasePriorityPrivilege	4924	facebok.exe
Token: 33	4924	facebok.exe
Token: SeIncBasePriorityPrivilege	4924	facebok.exe
Token: 33	4924	facebok.exe
Token: SeIncBasePriorityPrivilege	4924	facebok.exe
Token: 33	4924	facebok.exe
Token: SeIncBasePriorityPrivilege	4924	facebok.exe
Token: 33	4924	facebok.exe
Token: SeIncBasePriorityPrivilege	4924	facebok.exe
Token: 33	4924	facebok.exe
Token: SeIncBasePriorityPrivilege	4924	facebok.exe
Token: 33	4924	facebok.exe
Token: SeIncBasePriorityPrivilege	4924	facebok.exe
Token: 33	4924	facebok.exe
Token: SeIncBasePriorityPrivilege	4924	facebok.exe
Token: 33	4924	facebok.exe
Token: SeIncBasePriorityPrivilege	4924	facebok.exe
Token: 33	4924	facebok.exe
Token: SeIncBasePriorityPrivilege	4924	facebok.exe
Token: 33	4924	facebok.exe
Token: SeIncBasePriorityPrivilege	4924	facebok.exe
Token: 33	4924	facebok.exe
Token: SeIncBasePriorityPrivilege	4924	facebok.exe
Token: 33	4924	facebok.exe
Token: SeIncBasePriorityPrivilege	4924	facebok.exe
Token: 33	4924	facebok.exe
Token: SeIncBasePriorityPrivilege	4924	facebok.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 1500 wrote to memory of 4924	1500	4a67b99e3b666fdb104edeb7e51db77269fb93744027d8c67022f8ecdaf5141f.exe	87
PID 1500 wrote to memory of 4924	1500	4a67b99e3b666fdb104edeb7e51db77269fb93744027d8c67022f8ecdaf5141f.exe	87
PID 1500 wrote to memory of 4924	1500	4a67b99e3b666fdb104edeb7e51db77269fb93744027d8c67022f8ecdaf5141f.exe	87
PID 4924 wrote to memory of 184	4924	facebok.exe	90
PID 4924 wrote to memory of 184	4924	facebok.exe	90
PID 4924 wrote to memory of 184	4924	facebok.exe	90

C:\Users\Admin\AppData\Local\Temp\4a67b99e3b666fdb104edeb7e51db77269fb93744027d8c67022f8ecdaf5141f.exe
"C:\Users\Admin\AppData\Local\Temp\4a67b99e3b666fdb104edeb7e51db77269fb93744027d8c67022f8ecdaf5141f.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1500
- C:\Users\Admin\AppData\Local\Temp\facebok.exe
  "C:\Users\Admin\AppData\Local\Temp\facebok.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:4924
- - C:\Windows\SysWOW64\netsh.exe
    netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\facebok.exe" "facebok.exe" ENABLE
    3⤵
    - Modifies Windows Firewall
    - Event Triggered Execution: Netsh Helper DLL
    - System Location Discovery: System Language Discovery
    PID:184

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\facebok.exe

Filesize
1.5MB

MD5
4c471dbef461ae0fc6401bff21f00ecb

SHA1
80a2f9c98e682e53da78fdd9c6dc3e81c43c225b

SHA256
4a67b99e3b666fdb104edeb7e51db77269fb93744027d8c67022f8ecdaf5141f

SHA512
52150ebe1eafec1a550c7451ad75aa65713b1ad9552195cf8029ac05dcbb03575c69d8dc6cf6157494a984fbe66284a598734b3701823ab3b9c9e30c3ff69ab8

Download Submit
memory/1500-0-0x0000000074A92000-0x0000000074A93000-memory.dmp

Filesize
4KB

Download
memory/1500-1-0x0000000074A90000-0x0000000075041000-memory.dmp

Filesize
5.7MB

Download
memory/1500-2-0x0000000074A90000-0x0000000075041000-memory.dmp

Filesize
5.7MB

Download
memory/1500-15-0x0000000074A90000-0x0000000075041000-memory.dmp

Filesize
5.7MB

Download
memory/4924-16-0x0000000074A90000-0x0000000075041000-memory.dmp

Filesize
5.7MB

Download
memory/4924-17-0x0000000074A90000-0x0000000075041000-memory.dmp

Filesize
5.7MB

Download
memory/4924-18-0x0000000074A90000-0x0000000075041000-memory.dmp

Filesize
5.7MB

Download
memory/4924-20-0x0000000074A90000-0x0000000075041000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads