njrat | 377a1d0fa30911193d9518f8db4910397998d710047884aaae474023a0d1bf4b

Analysis

max time kernel
61s
max time network
60s
platform
windows10-1703_x64
resource
win10-20240404-en
resource tags

arch:x64arch:x86image:win10-20240404-enlocale:en-usos:windows10-1703-x64system
submitted
18-06-2024 20:35

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General

Target

kay.ps1
Size

355KB
MD5

953f6ad46d857b89ecdd141940b89464
SHA1

0e1a9fc3c25340edb5c51cd55e74dd5b23ab58f6
SHA256

377a1d0fa30911193d9518f8db4910397998d710047884aaae474023a0d1bf4b
SHA512

a409ab3781cd56969025b36dd3d3ad721618b9ffc7bb60a35fc94857a38461988e8c140e3ce0983ea803c16f1ed68c99021f58914d0a1ac066953a7c6eb2be0f
SSDEEP

3072:yVg8cH9dJIRNjZZ4Ir8zKaCaDv1iRRqNhEuoTWk7:EzcpIbjr9C0HqsNF

Score

10^/10

njrat nyan cat execution trojan

Malware Config

Extracted

Family

njrat

Version

0.7NC

Botnet

NYAN CAT

142.202.240.47:4444

Mutex

e6049327f0d5465989

Attributes

reg_key
e6049327f0d5465989
splitter
@!#&^%$

Signatures

njRAT/Bladabindi
Widely used RAT written in .NET.
trojan njrat
Suspicious use of SetThreadContext 1 IoCs

Processes:

powershell.exe

description pid process target process

PID 1768 set thread context of 208 1768 powershell.exe aspnet_compiler.exe
Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs
Using powershell.exe command.
execution

PowerShell
T1059.001

Processes:

powershell.exe

pid process

1768 powershell.exe
Suspicious behavior: EnumeratesProcesses 3 IoCs

Processes:

powershell.exe

pid process

1768 powershell.exe
1768 powershell.exe
1768 powershell.exe

description	pid	process	target process
PID 1768 set thread context of 208	1768	powershell.exe	aspnet_compiler.exe

pid	process
1768	powershell.exe

pid	process
1768	powershell.exe
1768	powershell.exe
1768	powershell.exe

Suspicious use of AdjustPrivilegeToken 16 IoCs

Processes:

powershell.exeaspnet_compiler.exe

description	pid	process
Token: SeDebugPrivilege	1768	powershell.exe
Token: SeDebugPrivilege	208	aspnet_compiler.exe
Token: 33	208	aspnet_compiler.exe
Token: SeIncBasePriorityPrivilege	208	aspnet_compiler.exe
Token: 33	208	aspnet_compiler.exe
Token: SeIncBasePriorityPrivilege	208	aspnet_compiler.exe
Token: 33	208	aspnet_compiler.exe
Token: SeIncBasePriorityPrivilege	208	aspnet_compiler.exe
Token: 33	208	aspnet_compiler.exe
Token: SeIncBasePriorityPrivilege	208	aspnet_compiler.exe
Token: 33	208	aspnet_compiler.exe
Token: SeIncBasePriorityPrivilege	208	aspnet_compiler.exe
Token: 33	208	aspnet_compiler.exe
Token: SeIncBasePriorityPrivilege	208	aspnet_compiler.exe
Token: 33	208	aspnet_compiler.exe
Token: SeIncBasePriorityPrivilege	208	aspnet_compiler.exe

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

powershell.exe

description	pid	process	target process
PID 1768 wrote to memory of 208	1768	powershell.exe	aspnet_compiler.exe
PID 1768 wrote to memory of 208	1768	powershell.exe	aspnet_compiler.exe
PID 1768 wrote to memory of 208	1768	powershell.exe	aspnet_compiler.exe
PID 1768 wrote to memory of 208	1768	powershell.exe	aspnet_compiler.exe
PID 1768 wrote to memory of 208	1768	powershell.exe	aspnet_compiler.exe
PID 1768 wrote to memory of 208	1768	powershell.exe	aspnet_compiler.exe
PID 1768 wrote to memory of 208	1768	powershell.exe	aspnet_compiler.exe
PID 1768 wrote to memory of 208	1768	powershell.exe	aspnet_compiler.exe

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
powershell.exe -ExecutionPolicy bypass -File C:\Users\Admin\AppData\Local\Temp\kay.ps1
1⤵
- Suspicious use of SetThreadContext
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1768

C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
#cmd
2⤵
- Suspicious use of AdjustPrivilegeToken
PID:208

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Command and Scripting Interpreter

T1059

PowerShell

T1059.001

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_1bsp0qh1.h5y.ps1
Filesize
1B

MD5
c4ca4238a0b923820dcc509a6f75849b

SHA1
356a192b7913b04c54574d18c28d46e6395428ab

SHA256
6b86b273ff34fce19d6b804eff5a3f5747ada4eaa22f1d49c01e52ddb7875b4b

SHA512
4dff4ea340f0a823f15d3f4f01ab62eae0e5da579ccb851f8db9dfe84c58b2b37b89903a740e1ee172da793a6e79d560e5f7f9bd058a12a280433ed6fa46510a

Download Submit
memory/208-30-0x00000000055C0000-0x0000000005652000-memory.dmp

Filesize
584KB

Download
memory/208-22-0x0000000000400000-0x000000000040C000-memory.dmp

Filesize
48KB

Download
memory/208-33-0x0000000073980000-0x000000007406E000-memory.dmp

Filesize
6.9MB

Download
memory/208-32-0x0000000005540000-0x000000000554A000-memory.dmp

Filesize
40KB

Download
memory/208-27-0x000000007398E000-0x000000007398F000-memory.dmp

Filesize
4KB

Download
memory/208-31-0x0000000073980000-0x000000007406E000-memory.dmp

Filesize
6.9MB

Download
memory/208-29-0x0000000005960000-0x0000000005E5E000-memory.dmp

Filesize
5.0MB

Download
memory/208-28-0x00000000053C0000-0x000000000545C000-memory.dmp

Filesize
624KB

Download
memory/1768-5-0x00000273EC6A0000-0x00000273EC6C2000-memory.dmp

Filesize
136KB

Download
memory/1768-26-0x00007FFF50290000-0x00007FFF50C7C000-memory.dmp

Filesize
9.9MB

Download
memory/1768-8-0x00007FFF50290000-0x00007FFF50C7C000-memory.dmp

Filesize
9.9MB

Download
memory/1768-4-0x00007FFF50293000-0x00007FFF50294000-memory.dmp

Filesize
4KB

Download
memory/1768-21-0x00000273EC7F0000-0x00000273EC80A000-memory.dmp

Filesize
104KB

Download
memory/1768-10-0x00007FFF50290000-0x00007FFF50C7C000-memory.dmp

Filesize
9.9MB

Download
memory/1768-9-0x00000273EC850000-0x00000273EC8C6000-memory.dmp

Filesize
472KB

Download