njrat | 639d28b15f1b7eacb0643ec4d0d01f616c67331e4922ff70fb0c11d159a71722

General

Target

639d28b15f1b7eacb0643ec4d0d01f616c67331e4922ff70fb0c11d159a71722.exe
Size

32KB
MD5

d215d82add10de20937f053fec9f0569
SHA1

65646c8357ca589202b7aa930a63204241940520
SHA256

639d28b15f1b7eacb0643ec4d0d01f616c67331e4922ff70fb0c11d159a71722
SHA512

17ce160fd3e7f4e711ef9514e5b254e7f4ffd82c922ae262873de5de70c41648546bb8f18c0aadb30fc2d50413cf6d98efb6c1381c24a082d76edab8a4d3544c
SSDEEP

384:8Vit2wUQCG+JexvsiOrhAh9kLAZFPI+uT00olDModg9TdFpyFEIGsJjwE7UMcrio:LiGtUrrhAAA/iouDbEEIGfRh+f

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
368	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-1-5-21-1302416131-1437503476-2806442725-1000\Control Panel\International\Geo\Nation	639d28b15f1b7eacb0643ec4d0d01f616c67331e4922ff70fb0c11d159a71722.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\6b39b87ae598b13f573812c34bd0e980.exe	System32.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\6b39b87ae598b13f573812c34bd0e980.exe	System32.exe

Executes dropped EXE 1 IoCs

pid	Process
3228	System32.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-1-5-21-1302416131-1437503476-2806442725-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\6b39b87ae598b13f573812c34bd0e980 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\System32.exe\" .."	System32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\6b39b87ae598b13f573812c34bd0e980 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\System32.exe\" .."	System32.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	639d28b15f1b7eacb0643ec4d0d01f616c67331e4922ff70fb0c11d159a71722.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	System32.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe

Suspicious use of AdjustPrivilegeToken 35 IoCs

description	pid	Process
Token: SeDebugPrivilege	3228	System32.exe
Token: 33	3228	System32.exe
Token: SeIncBasePriorityPrivilege	3228	System32.exe
Token: 33	3228	System32.exe
Token: SeIncBasePriorityPrivilege	3228	System32.exe
Token: 33	3228	System32.exe
Token: SeIncBasePriorityPrivilege	3228	System32.exe
Token: 33	3228	System32.exe
Token: SeIncBasePriorityPrivilege	3228	System32.exe
Token: 33	3228	System32.exe
Token: SeIncBasePriorityPrivilege	3228	System32.exe
Token: 33	3228	System32.exe
Token: SeIncBasePriorityPrivilege	3228	System32.exe
Token: 33	3228	System32.exe
Token: SeIncBasePriorityPrivilege	3228	System32.exe
Token: 33	3228	System32.exe
Token: SeIncBasePriorityPrivilege	3228	System32.exe
Token: 33	3228	System32.exe
Token: SeIncBasePriorityPrivilege	3228	System32.exe
Token: 33	3228	System32.exe
Token: SeIncBasePriorityPrivilege	3228	System32.exe
Token: 33	3228	System32.exe
Token: SeIncBasePriorityPrivilege	3228	System32.exe
Token: 33	3228	System32.exe
Token: SeIncBasePriorityPrivilege	3228	System32.exe
Token: 33	3228	System32.exe
Token: SeIncBasePriorityPrivilege	3228	System32.exe
Token: 33	3228	System32.exe
Token: SeIncBasePriorityPrivilege	3228	System32.exe
Token: 33	3228	System32.exe
Token: SeIncBasePriorityPrivilege	3228	System32.exe
Token: 33	3228	System32.exe
Token: SeIncBasePriorityPrivilege	3228	System32.exe
Token: 33	3228	System32.exe
Token: SeIncBasePriorityPrivilege	3228	System32.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 2204 wrote to memory of 3228	2204	639d28b15f1b7eacb0643ec4d0d01f616c67331e4922ff70fb0c11d159a71722.exe	86
PID 2204 wrote to memory of 3228	2204	639d28b15f1b7eacb0643ec4d0d01f616c67331e4922ff70fb0c11d159a71722.exe	86
PID 2204 wrote to memory of 3228	2204	639d28b15f1b7eacb0643ec4d0d01f616c67331e4922ff70fb0c11d159a71722.exe	86
PID 3228 wrote to memory of 368	3228	System32.exe	90
PID 3228 wrote to memory of 368	3228	System32.exe	90
PID 3228 wrote to memory of 368	3228	System32.exe	90

C:\Users\Admin\AppData\Local\Temp\639d28b15f1b7eacb0643ec4d0d01f616c67331e4922ff70fb0c11d159a71722.exe
"C:\Users\Admin\AppData\Local\Temp\639d28b15f1b7eacb0643ec4d0d01f616c67331e4922ff70fb0c11d159a71722.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2204
- C:\Users\Admin\AppData\Local\Temp\System32.exe
  "C:\Users\Admin\AppData\Local\Temp\System32.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\System32.exe" "System32.exe" ENABLE
    3⤵
    - Modifies Windows Firewall
    - Event Triggered Execution: Netsh Helper DLL
    - System Location Discovery: System Language Discovery
    PID:368

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\System32.exe

Filesize
32KB

MD5
d215d82add10de20937f053fec9f0569

SHA1
65646c8357ca589202b7aa930a63204241940520

SHA256
639d28b15f1b7eacb0643ec4d0d01f616c67331e4922ff70fb0c11d159a71722

SHA512
17ce160fd3e7f4e711ef9514e5b254e7f4ffd82c922ae262873de5de70c41648546bb8f18c0aadb30fc2d50413cf6d98efb6c1381c24a082d76edab8a4d3544c

Download Submit
memory/2204-0-0x0000000074D42000-0x0000000074D43000-memory.dmp

Filesize
4KB

Download
memory/2204-1-0x0000000074D40000-0x00000000752F1000-memory.dmp

Filesize
5.7MB

Download
memory/2204-2-0x0000000074D40000-0x00000000752F1000-memory.dmp

Filesize
5.7MB

Download
memory/2204-12-0x0000000074D40000-0x00000000752F1000-memory.dmp

Filesize
5.7MB

Download
memory/3228-13-0x0000000074D40000-0x00000000752F1000-memory.dmp

Filesize
5.7MB

Download
memory/3228-14-0x0000000074D40000-0x00000000752F1000-memory.dmp

Filesize
5.7MB

Download
memory/3228-16-0x0000000074D40000-0x00000000752F1000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads