njrat | 7559e6ca8b77400f88bf4e67208a1c32570a670068eccae9e3d226cc5471bd47

Analysis

max time kernel
149s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
17-09-2024 06:30

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General

Target

bazaar.2020.02/Backdoor.Win32.Parazit.exe
Size

48KB
MD5

d52448cb39e67d27dae28f60906affcc
SHA1

803c032ddeb9bcb46d828cf6bdc989d1a25cc660
SHA256

4f54c2e0def0a2a5b478220b3ddbccc3ee2a7302cddbfe0e8e1d394587589d88
SHA512

f5b9ada70e56f1e95dce6b95a612bf1ebef301be79328b802a7bce1e225ba78eabbaf825d8153215460625c1e6432add972f9c597a9d318973338a1a7895740d
SSDEEP

768:ULvM+2O7Gel5quISq41ET8n7efFKuaAu4ycpV0byA8Bw4/xv5fS5:cCvel5HnqDY6f4vBcpsraW

Score

10^/10

njrat discovery evasion persistence trojan

Malware Config

Signatures

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

Enumerates VirtualBox registry keys 2 TTPs 5 IoCs

evasion

Query Registry

T1012

Virtualization/Sandbox Evasion

T1497

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\VBoxSF	Backdoor.Win32.Parazit.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\VBoxVideo	Backdoor.Win32.Parazit.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\VBoxGuest	Backdoor.Win32.Parazit.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\VBoxMouse	Backdoor.Win32.Parazit.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\VBoxService	Backdoor.Win32.Parazit.exe

Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 3 IoCs

evasion

Query Registry

T1012

Virtualization/Sandbox Evasion

T1497

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	Backdoor.Win32.Parazit.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\FADT\VBOX__	Backdoor.Win32.Parazit.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\RSDT\VBOX__	Backdoor.Win32.Parazit.exe

Looks for VirtualBox Guest Additions in registry 2 TTPs 1 IoCs

evasion

Query Registry

T1012

Virtualization/Sandbox Evasion

T1497

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Oracle\VirtualBox Guest Additions	Backdoor.Win32.Parazit.exe

Looks for VMWare Tools registry key 2 TTPs 1 IoCs

evasion

Query Registry

T1012

Virtualization/Sandbox Evasion

T1497

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\VMware, Inc.\VMware Tools	Backdoor.Win32.Parazit.exe

Checks BIOS information in registry 2 TTPs 3 IoCs

BIOS information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	Backdoor.Win32.Parazit.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	Backdoor.Win32.Parazit.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosDate	Backdoor.Win32.Parazit.exe

Identifies Wine through registry keys 2 TTPs 1 IoCs

Wine is a compatibility layer capable of running Windows applications, which can be used as sandboxing environment.

evasion

Query Registry

T1012

Virtualization/Sandbox Evasion

T1497

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Wine	Backdoor.Win32.Parazit.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-2392887640-1187051047-2909758433-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ = "\"C:\\Users\\Admin\\AppData\\Roaming\\NAPJSQQJAG.exe\""	Backdoor.Win32.Parazit.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs

pid	Process
4620	Backdoor.Win32.Parazit.exe
4620	Backdoor.Win32.Parazit.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4620 set thread context of 1560	4620	Backdoor.Win32.Parazit.exe	81

System Location Discovery: System Language Discovery 1 TTPs 2 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	Backdoor.Win32.Parazit.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
4620	Backdoor.Win32.Parazit.exe
4620	Backdoor.Win32.Parazit.exe
4620	Backdoor.Win32.Parazit.exe
4620	Backdoor.Win32.Parazit.exe
4620	Backdoor.Win32.Parazit.exe
4620	Backdoor.Win32.Parazit.exe
4620	Backdoor.Win32.Parazit.exe
4620	Backdoor.Win32.Parazit.exe
4620	Backdoor.Win32.Parazit.exe
4620	Backdoor.Win32.Parazit.exe
4620	Backdoor.Win32.Parazit.exe
4620	Backdoor.Win32.Parazit.exe
4620	Backdoor.Win32.Parazit.exe
4620	Backdoor.Win32.Parazit.exe
4620	Backdoor.Win32.Parazit.exe
4620	Backdoor.Win32.Parazit.exe
4620	Backdoor.Win32.Parazit.exe
4620	Backdoor.Win32.Parazit.exe
4620	Backdoor.Win32.Parazit.exe
4620	Backdoor.Win32.Parazit.exe
4620	Backdoor.Win32.Parazit.exe
4620	Backdoor.Win32.Parazit.exe
4620	Backdoor.Win32.Parazit.exe
4620	Backdoor.Win32.Parazit.exe
4620	Backdoor.Win32.Parazit.exe
4620	Backdoor.Win32.Parazit.exe
4620	Backdoor.Win32.Parazit.exe
4620	Backdoor.Win32.Parazit.exe
4620	Backdoor.Win32.Parazit.exe
4620	Backdoor.Win32.Parazit.exe
4620	Backdoor.Win32.Parazit.exe
4620	Backdoor.Win32.Parazit.exe
4620	Backdoor.Win32.Parazit.exe
4620	Backdoor.Win32.Parazit.exe
4620	Backdoor.Win32.Parazit.exe
4620	Backdoor.Win32.Parazit.exe
4620	Backdoor.Win32.Parazit.exe
4620	Backdoor.Win32.Parazit.exe
4620	Backdoor.Win32.Parazit.exe
4620	Backdoor.Win32.Parazit.exe
4620	Backdoor.Win32.Parazit.exe
4620	Backdoor.Win32.Parazit.exe
4620	Backdoor.Win32.Parazit.exe
4620	Backdoor.Win32.Parazit.exe
4620	Backdoor.Win32.Parazit.exe
4620	Backdoor.Win32.Parazit.exe
4620	Backdoor.Win32.Parazit.exe
4620	Backdoor.Win32.Parazit.exe
4620	Backdoor.Win32.Parazit.exe
4620	Backdoor.Win32.Parazit.exe
4620	Backdoor.Win32.Parazit.exe
4620	Backdoor.Win32.Parazit.exe
4620	Backdoor.Win32.Parazit.exe
4620	Backdoor.Win32.Parazit.exe
4620	Backdoor.Win32.Parazit.exe
4620	Backdoor.Win32.Parazit.exe
4620	Backdoor.Win32.Parazit.exe
4620	Backdoor.Win32.Parazit.exe
4620	Backdoor.Win32.Parazit.exe
4620	Backdoor.Win32.Parazit.exe
4620	Backdoor.Win32.Parazit.exe
4620	Backdoor.Win32.Parazit.exe
4620	Backdoor.Win32.Parazit.exe
4620	Backdoor.Win32.Parazit.exe

Suspicious behavior: MapViewOfSection 1 IoCs

pid	Process
4620	Backdoor.Win32.Parazit.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 4620 wrote to memory of 1560	4620	Backdoor.Win32.Parazit.exe	81
PID 4620 wrote to memory of 1560	4620	Backdoor.Win32.Parazit.exe	81
PID 4620 wrote to memory of 1560	4620	Backdoor.Win32.Parazit.exe	81
PID 4620 wrote to memory of 1560	4620	Backdoor.Win32.Parazit.exe	81

C:\Users\Admin\AppData\Local\Temp\bazaar.2020.02\Backdoor.Win32.Parazit.exe
"C:\Users\Admin\AppData\Local\Temp\bazaar.2020.02\Backdoor.Win32.Parazit.exe"
1⤵
- Enumerates VirtualBox registry keys
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Looks for VirtualBox Guest Additions in registry
- Looks for VMWare Tools registry key
- Checks BIOS information in registry
- Identifies Wine through registry keys
- Adds Run key to start application
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:4620
- C:\Windows\SysWOW64\svchost.exe
  C:\Windows\syswow64\svchost.exe
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1560

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Virtualization/Sandbox Evasion

T1497

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Virtualization/Sandbox Evasion

T1497

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/1560-2-0x0000000000940000-0x0000000000951000-memory.dmp

Filesize
68KB

Download
memory/1560-1-0x0000000000940000-0x0000000000951000-memory.dmp

Filesize
68KB

Download
memory/1560-4-0x0000000000940000-0x0000000000951000-memory.dmp

Filesize
68KB

Download
memory/1560-3-0x0000000000940000-0x0000000000951000-memory.dmp

Filesize
68KB

Download
memory/1560-5-0x0000000000940000-0x0000000000951000-memory.dmp

Filesize
68KB

Download
memory/1560-6-0x0000000001160000-0x0000000002160000-memory.dmp

Filesize
16.0MB

Download
memory/1560-8-0x0000000001160000-0x0000000002160000-memory.dmp

Filesize
16.0MB

Download
memory/4620-7-0x00000000027D0000-0x0000000002810000-memory.dmp

Filesize
256KB

Download
memory/4620-9-0x00000000027D0000-0x0000000002810000-memory.dmp

Filesize
256KB

Download