njrat | 60e1eda44bb1390a1405182caf9484e2a43ff9f93234f12108762522ef7c24b5

General

Target
svchost.exe
Size 27KB
Sample261102-sg352svshx
SHA256 60e1eda44bb1390a1405182caf9484e2a43ff9f93234f12108762522ef7c24b5
MD5 61bfdb63bb754c215a25188b3e60f95f
SHA1 1544957ab7ab26ce75e8cdec03220d5a97568e93
SHA512 ca9bb3503a8ea0683e4e114147b250e14c6a6706dfde89e4ec138f1ddb7f34aa3607e922e07472faff3ce9fc68d6b158cbbb42c95b77c6a7b9324e2b04f6e23d
SSDEEP 384:9LEBh0yOAUf9pLfAvWSJoPFMWW8MQAQk93vmhm7UMKmIEecKdbXTzm9bVhca286d:tQ493UdQA/vMHTi9bD
TLSH
T149C2F72C37B68232D1EE067E5562EA5042B4D04BE223FB0F0CD958ED4B5B3CA0A45EE4
MD5 SHA1 SHA512 SSDEEP TLSH

Score

10^/10

hacked by zix defense_evasion discovery njrat persistence privilege_escalation trojan

Malware Config

Extracted

Family

njrat

Version

v4.0

Botnet

HacKed by zix

C2

nsnosi-39204.portmap.host:39204

Mutex

Windows

Attributes

reg_key
Windows
splitter
|-F-|

Signatures

Family: njRAT/Bladabindi
Widely used RAT written in .NET.
trojan njrat

Creates a file in the Startup directory 1 TTPs 1 IoCs

A file was written to a Windows startup folder. Files in these directories are executed automatically when a user logs on or an application initializes.

persistence privilege_escalation

Registry Run Keys / Startup Folder

T1547.001

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Windows.lnk	svchost.exe

Executes a file named after a Windows system binary 1 TTPs 1 IoCs

The file runs from a user directory while carrying the name of an executable that normally only exists in System32.

defense_evasion

Match Legitimate Name or Location

T1036.005

description	ioc	Process
File opened (read-only)	C:\Users\Admin\AppData\Local\Temp\svchost.exe	svchost.exe

Adds Run key to start application 2 TTPs 4 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\Windows2 = "C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\Windows\\Templates\\Windows.URL"	svchost.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2814447569-4053889695-374664695-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Windows = "C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\Windows\\Templates\\Windows.URL"	svchost.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\Windows = "C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\Windows\\Templates\\Windows.URL"	svchost.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2814447569-4053889695-374664695-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Windows2 = "C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\Windows\\Templates\\Windows.URL"	svchost.exe

Enumerates video capture drivers 2 TTPs 1 IoCs

Queries the legacy Video for Windows capture drivers. This is commonly abused by RATs to check for available webcams on the system before reporting to their C2.

discovery defense_evasion

Peripheral Device Discovery

T1120

Video Capture

T1125

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows NT\CurrentVersion\Drivers32\msvideo9	svchost.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Reads the TCP/IP host and domain name from the registry 1 TTPs 2 IoCs

The configured hostname and DNS domain identify the machine and are commonly collected to profile a host before it reports in.

discovery

System Network Configuration Discovery

T1016

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Tcpip\Parameters\Hostname	svchost.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Tcpip\Parameters\Domain	svchost.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	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	attrib.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	attrib.exe

Suspicious use of AdjustPrivilegeToken 35 IoCs

description	pid	Process
Token: SeDebugPrivilege	3748	svchost.exe
Token: 33	3748	svchost.exe
Token: SeIncBasePriorityPrivilege	3748	svchost.exe
Token: 33	3748	svchost.exe
Token: SeIncBasePriorityPrivilege	3748	svchost.exe
Token: 33	3748	svchost.exe
Token: SeIncBasePriorityPrivilege	3748	svchost.exe
Token: 33	3748	svchost.exe
Token: SeIncBasePriorityPrivilege	3748	svchost.exe
Token: 33	3748	svchost.exe
Token: SeIncBasePriorityPrivilege	3748	svchost.exe
Token: 33	3748	svchost.exe
Token: SeIncBasePriorityPrivilege	3748	svchost.exe
Token: 33	3748	svchost.exe
Token: SeIncBasePriorityPrivilege	3748	svchost.exe
Token: 33	3748	svchost.exe
Token: SeIncBasePriorityPrivilege	3748	svchost.exe
Token: 33	3748	svchost.exe
Token: SeIncBasePriorityPrivilege	3748	svchost.exe
Token: 33	3748	svchost.exe
Token: SeIncBasePriorityPrivilege	3748	svchost.exe
Token: 33	3748	svchost.exe
Token: SeIncBasePriorityPrivilege	3748	svchost.exe
Token: 33	3748	svchost.exe
Token: SeIncBasePriorityPrivilege	3748	svchost.exe
Token: 33	3748	svchost.exe
Token: SeIncBasePriorityPrivilege	3748	svchost.exe
Token: 33	3748	svchost.exe
Token: SeIncBasePriorityPrivilege	3748	svchost.exe
Token: 33	3748	svchost.exe
Token: SeIncBasePriorityPrivilege	3748	svchost.exe
Token: 33	3748	svchost.exe
Token: SeIncBasePriorityPrivilege	3748	svchost.exe
Token: 33	3748	svchost.exe
Token: SeIncBasePriorityPrivilege	3748	svchost.exe

Suspicious use of WriteProcessMemory 2 IoCs

description	pid	Process	procid_target
PID 3748 wrote to memory of 648	3748	svchost.exe	90
PID 3748 wrote to memory of 4008	3748	svchost.exe	91

Views/modifies file attributes 1 TTPs 2 IoCs

defense_evasion

Hidden Files and Directories

T1564.001

pid	Process
648	attrib.exe
4008	attrib.exe

C:\Users\Admin\AppData\Local\Temp\svchost.exe
"C:\Users\Admin\AppData\Local\Temp\svchost.exe"
1⤵
- Creates a file in the Startup directory
- Executes a file named after a Windows system binary
- Adds Run key to start application
- Enumerates video capture drivers
- Reads the TCP/IP host and domain name from the registry
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3748
- C:\Windows\SysWOW64\attrib.exe
  attrib +h +r +s "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Windows.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Views/modifies file attributes
  PID:648
- C:\Windows\SysWOW64\attrib.exe
  attrib +h +r +s "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\Windows.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Views/modifies file attributes
  PID:4008