njrat | 7559e6ca8b77400f88bf4e67208a1c32570a670068eccae9e3d226cc5471bd47

Resubmissions

20-09-2024 07:43

240920-jkdj5avhqa 10

16-09-2024 13:49

240916-q4rz7a1apg 10

Analysis

max time kernel
149s
max time network
139s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
16-09-2024 13:49

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General

Target

bazaar.2020.02/Backdoor.MSIL.Agent.exe
Size

23KB
MD5

a5c91c0df00109626c011eb185e94138
SHA1

d79d3612639318cf0e9d8fedd9529dd1017863b5
SHA256

aa918b196328f1fe341b5b48cb5d28f31a94b92b279fcf36baaea55a0a8886f1
SHA512

65d929307e1266ec6bf40e8b979e39a1ac867c27f094a4e987e469a176819e4efb6904826f57938be993a5c9b674b0ee440b4f62d9254f6cffd43f4787efadf9
SSDEEP

384:n8aZYC9twBNdcvFaly2H0dbJo6HghcASEJqc/ZmRvR6JZlbw8hqIusZzZPb6:rY+sNKqNHnSdRpcnug6

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

Processes:

netsh.exe

pid process

1500 netsh.exe

pid	process
1500	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

Processes:

Backdoor.MSIL.Agent.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-2718105630-359604950-2820636825-1000\Control Panel\International\Geo\Nation	Backdoor.MSIL.Agent.exe

Executes dropped EXE 1 IoCs

Processes:

Raw.exe

pid process

4884 Raw.exe

pid	process
4884	Raw.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

Raw.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\aeeb7a2903c8c537463f288bcc5eed2e = "\"C:\\ProgramData\\Raw.exe\" .."	Raw.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2718105630-359604950-2820636825-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\aeeb7a2903c8c537463f288bcc5eed2e = "\"C:\\ProgramData\\Raw.exe\" .."	Raw.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

Processes:

netsh.exe

description	ioc	process
Key value enumerated	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key opened	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key queried	\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

Processes:

Backdoor.MSIL.Agent.exeRaw.exenetsh.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Backdoor.MSIL.Agent.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Raw.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe

Suspicious use of AdjustPrivilegeToken 35 IoCs

Processes:

Raw.exe

description	pid	process
Token: SeDebugPrivilege	4884	Raw.exe
Token: 33	4884	Raw.exe
Token: SeIncBasePriorityPrivilege	4884	Raw.exe
Token: 33	4884	Raw.exe
Token: SeIncBasePriorityPrivilege	4884	Raw.exe
Token: 33	4884	Raw.exe
Token: SeIncBasePriorityPrivilege	4884	Raw.exe
Token: 33	4884	Raw.exe
Token: SeIncBasePriorityPrivilege	4884	Raw.exe
Token: 33	4884	Raw.exe
Token: SeIncBasePriorityPrivilege	4884	Raw.exe
Token: 33	4884	Raw.exe
Token: SeIncBasePriorityPrivilege	4884	Raw.exe
Token: 33	4884	Raw.exe
Token: SeIncBasePriorityPrivilege	4884	Raw.exe
Token: 33	4884	Raw.exe
Token: SeIncBasePriorityPrivilege	4884	Raw.exe
Token: 33	4884	Raw.exe
Token: SeIncBasePriorityPrivilege	4884	Raw.exe
Token: 33	4884	Raw.exe
Token: SeIncBasePriorityPrivilege	4884	Raw.exe
Token: 33	4884	Raw.exe
Token: SeIncBasePriorityPrivilege	4884	Raw.exe
Token: 33	4884	Raw.exe
Token: SeIncBasePriorityPrivilege	4884	Raw.exe
Token: 33	4884	Raw.exe
Token: SeIncBasePriorityPrivilege	4884	Raw.exe
Token: 33	4884	Raw.exe
Token: SeIncBasePriorityPrivilege	4884	Raw.exe
Token: 33	4884	Raw.exe
Token: SeIncBasePriorityPrivilege	4884	Raw.exe
Token: 33	4884	Raw.exe
Token: SeIncBasePriorityPrivilege	4884	Raw.exe
Token: 33	4884	Raw.exe
Token: SeIncBasePriorityPrivilege	4884	Raw.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

Backdoor.MSIL.Agent.exeRaw.exe

description	pid	process	target process
PID 5024 wrote to memory of 4884	5024	Backdoor.MSIL.Agent.exe	Raw.exe
PID 5024 wrote to memory of 4884	5024	Backdoor.MSIL.Agent.exe	Raw.exe
PID 5024 wrote to memory of 4884	5024	Backdoor.MSIL.Agent.exe	Raw.exe
PID 4884 wrote to memory of 1500	4884	Raw.exe	netsh.exe
PID 4884 wrote to memory of 1500	4884	Raw.exe	netsh.exe
PID 4884 wrote to memory of 1500	4884	Raw.exe	netsh.exe

C:\Users\Admin\AppData\Local\Temp\bazaar.2020.02\Backdoor.MSIL.Agent.exe
"C:\Users\Admin\AppData\Local\Temp\bazaar.2020.02\Backdoor.MSIL.Agent.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:5024
- C:\ProgramData\Raw.exe
  "C:\ProgramData\Raw.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:4884
- - C:\Windows\SysWOW64\netsh.exe
    netsh firewall add allowedprogram "C:\ProgramData\Raw.exe" "Raw.exe" ENABLE
    3⤵
    - Modifies Windows Firewall
    - Event Triggered Execution: Netsh Helper DLL
    - System Location Discovery: System Language Discovery
    PID:1500

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

Create or Modify System Process

T1543

Windows Service

T1543.003

Event Triggered Execution

T1546

Netsh Helper DLL

T1546.007

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Create or Modify System Process

T1543

Windows Service

T1543.003

Event Triggered Execution

T1546

Netsh Helper DLL

T1546.007

Defense Evasion

Impair Defenses

T1562

Disable or Modify System Firewall

T1562.004

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\ProgramData\Raw.exe

Filesize
23KB

MD5
a5c91c0df00109626c011eb185e94138

SHA1
d79d3612639318cf0e9d8fedd9529dd1017863b5

SHA256
aa918b196328f1fe341b5b48cb5d28f31a94b92b279fcf36baaea55a0a8886f1

SHA512
65d929307e1266ec6bf40e8b979e39a1ac867c27f094a4e987e469a176819e4efb6904826f57938be993a5c9b674b0ee440b4f62d9254f6cffd43f4787efadf9

Download Submit
memory/4884-12-0x0000000074BC0000-0x0000000075171000-memory.dmp

Filesize
5.7MB

Download
memory/4884-14-0x0000000074BC0000-0x0000000075171000-memory.dmp

Filesize
5.7MB

Download
memory/4884-15-0x0000000074BC0000-0x0000000075171000-memory.dmp

Filesize
5.7MB

Download
memory/4884-16-0x0000000074BC0000-0x0000000075171000-memory.dmp

Filesize
5.7MB

Download
memory/4884-17-0x0000000074BC0000-0x0000000075171000-memory.dmp

Filesize
5.7MB

Download
memory/5024-0-0x0000000074BC2000-0x0000000074BC3000-memory.dmp

Filesize
4KB

Download
memory/5024-1-0x0000000074BC0000-0x0000000075171000-memory.dmp

Filesize
5.7MB

Download
memory/5024-2-0x0000000074BC0000-0x0000000075171000-memory.dmp

Filesize
5.7MB

Download
memory/5024-13-0x0000000074BC0000-0x0000000075171000-memory.dmp

Filesize
5.7MB

Download