njrat | 099145c2e43747b2cb22755defd2eda3d470fb36644b0f79456ac7ee0e3ed6be

General

Target

099145c2e43747b2cb22755defd2eda3d470fb36644b0f79456ac7ee0e3ed6be.exe
Size

5.1MB
MD5

455221845bfa315bccfe26dbf2148284
SHA1

a0ceaa693c0b59d7d29b306ef95c7e362b1e5d3c
SHA256

099145c2e43747b2cb22755defd2eda3d470fb36644b0f79456ac7ee0e3ed6be
SHA512

a3d37f5703ea0ef9f21cec193de1ef980202932e1fc0e6f4f0ed1623fd002ebaf1a3acacd058919c84c7234c99e77992ee84e898b97d277d3a8e9449b436a175

Score

10^/10

njrat cuidadonoip evasion trojan

Malware Config

Extracted

Family

njrat

Version

0.7d

Botnet

cuidadonoip

C2

redlan1.hopto.org:5553

Mutex

ae9e817436635b16f6ddc3bfed8800fb

Attributes

reg_key
ae9e817436635b16f6ddc3bfed8800fb
splitter
|'|'|

Signatures

njRAT/Bladabindi
Widely used RAT written in .NET.
trojan njrat
Executes dropped EXE 1 IoCs

Processes:

Nordvpn.exe

pid process

4012 Nordvpn.exe
Modifies Windows Firewall 1 TTPs
evasion

Modify Existing Service
T1031

pid	process
4012	Nordvpn.exe

Drops startup file 1 IoCs

Processes:

099145c2e43747b2cb22755defd2eda3d470fb36644b0f79456ac7ee0e3ed6be.exe

description	ioc	process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\adprovider.url	099145c2e43747b2cb22755defd2eda3d470fb36644b0f79456ac7ee0e3ed6be.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

099145c2e43747b2cb22755defd2eda3d470fb36644b0f79456ac7ee0e3ed6be.exe

description	pid	process	target process
PID 4432 set thread context of 4164	4432	099145c2e43747b2cb22755defd2eda3d470fb36644b0f79456ac7ee0e3ed6be.exe	RegAsm.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 4 IoCs

Processes:

099145c2e43747b2cb22755defd2eda3d470fb36644b0f79456ac7ee0e3ed6be.exe

pid	process
4432	099145c2e43747b2cb22755defd2eda3d470fb36644b0f79456ac7ee0e3ed6be.exe
4432	099145c2e43747b2cb22755defd2eda3d470fb36644b0f79456ac7ee0e3ed6be.exe
4432	099145c2e43747b2cb22755defd2eda3d470fb36644b0f79456ac7ee0e3ed6be.exe
4432	099145c2e43747b2cb22755defd2eda3d470fb36644b0f79456ac7ee0e3ed6be.exe

Suspicious use of AdjustPrivilegeToken 19 IoCs

Processes:

RegAsm.exe

description	pid	process
Token: SeDebugPrivilege	4164	RegAsm.exe
Token: 33	4164	RegAsm.exe
Token: SeIncBasePriorityPrivilege	4164	RegAsm.exe
Token: 33	4164	RegAsm.exe
Token: SeIncBasePriorityPrivilege	4164	RegAsm.exe
Token: 33	4164	RegAsm.exe
Token: SeIncBasePriorityPrivilege	4164	RegAsm.exe
Token: 33	4164	RegAsm.exe
Token: SeIncBasePriorityPrivilege	4164	RegAsm.exe
Token: 33	4164	RegAsm.exe
Token: SeIncBasePriorityPrivilege	4164	RegAsm.exe
Token: 33	4164	RegAsm.exe
Token: SeIncBasePriorityPrivilege	4164	RegAsm.exe
Token: 33	4164	RegAsm.exe
Token: SeIncBasePriorityPrivilege	4164	RegAsm.exe
Token: 33	4164	RegAsm.exe
Token: SeIncBasePriorityPrivilege	4164	RegAsm.exe
Token: 33	4164	RegAsm.exe
Token: SeIncBasePriorityPrivilege	4164	RegAsm.exe

Suspicious use of FindShellTrayWindow 4 IoCs

Processes:

099145c2e43747b2cb22755defd2eda3d470fb36644b0f79456ac7ee0e3ed6be.exe

pid	process
4432	099145c2e43747b2cb22755defd2eda3d470fb36644b0f79456ac7ee0e3ed6be.exe
4432	099145c2e43747b2cb22755defd2eda3d470fb36644b0f79456ac7ee0e3ed6be.exe
4432	099145c2e43747b2cb22755defd2eda3d470fb36644b0f79456ac7ee0e3ed6be.exe
4432	099145c2e43747b2cb22755defd2eda3d470fb36644b0f79456ac7ee0e3ed6be.exe

Suspicious use of SendNotifyMessage 4 IoCs

Processes:

099145c2e43747b2cb22755defd2eda3d470fb36644b0f79456ac7ee0e3ed6be.exe

pid	process
4432	099145c2e43747b2cb22755defd2eda3d470fb36644b0f79456ac7ee0e3ed6be.exe
4432	099145c2e43747b2cb22755defd2eda3d470fb36644b0f79456ac7ee0e3ed6be.exe
4432	099145c2e43747b2cb22755defd2eda3d470fb36644b0f79456ac7ee0e3ed6be.exe
4432	099145c2e43747b2cb22755defd2eda3d470fb36644b0f79456ac7ee0e3ed6be.exe

Suspicious use of WriteProcessMemory 11 IoCs

Processes:

099145c2e43747b2cb22755defd2eda3d470fb36644b0f79456ac7ee0e3ed6be.exeRegAsm.exe

description	pid	process	target process
PID 4432 wrote to memory of 4012	4432	099145c2e43747b2cb22755defd2eda3d470fb36644b0f79456ac7ee0e3ed6be.exe	Nordvpn.exe
PID 4432 wrote to memory of 4012	4432	099145c2e43747b2cb22755defd2eda3d470fb36644b0f79456ac7ee0e3ed6be.exe	Nordvpn.exe
PID 4432 wrote to memory of 4012	4432	099145c2e43747b2cb22755defd2eda3d470fb36644b0f79456ac7ee0e3ed6be.exe	Nordvpn.exe
PID 4432 wrote to memory of 4164	4432	099145c2e43747b2cb22755defd2eda3d470fb36644b0f79456ac7ee0e3ed6be.exe	RegAsm.exe
PID 4432 wrote to memory of 4164	4432	099145c2e43747b2cb22755defd2eda3d470fb36644b0f79456ac7ee0e3ed6be.exe	RegAsm.exe
PID 4432 wrote to memory of 4164	4432	099145c2e43747b2cb22755defd2eda3d470fb36644b0f79456ac7ee0e3ed6be.exe	RegAsm.exe
PID 4432 wrote to memory of 4164	4432	099145c2e43747b2cb22755defd2eda3d470fb36644b0f79456ac7ee0e3ed6be.exe	RegAsm.exe
PID 4432 wrote to memory of 4164	4432	099145c2e43747b2cb22755defd2eda3d470fb36644b0f79456ac7ee0e3ed6be.exe	RegAsm.exe
PID 4164 wrote to memory of 4292	4164	RegAsm.exe	netsh.exe
PID 4164 wrote to memory of 4292	4164	RegAsm.exe	netsh.exe
PID 4164 wrote to memory of 4292	4164	RegAsm.exe	netsh.exe

C:\Users\Admin\AppData\Local\Temp\099145c2e43747b2cb22755defd2eda3d470fb36644b0f79456ac7ee0e3ed6be.exe
"C:\Users\Admin\AppData\Local\Temp\099145c2e43747b2cb22755defd2eda3d470fb36644b0f79456ac7ee0e3ed6be.exe"
1⤵
- Drops startup file
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:4432
- C:\Users\Admin\AppData\Local\Temp\Nordvpn.exe
  "C:\Users\Admin\AppData\Local\Temp\Nordvpn.exe"
  2⤵
  - Executes dropped EXE
  PID:4012
- C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
  "C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe"
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:4164
- - C:\Windows\SysWOW64\netsh.exe
    netsh firewall add allowedprogram "C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe" "RegAsm.exe" ENABLE
    3⤵
    PID:4292

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Modify Existing Service

1

T1031

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\Nordvpn.exe

MD5
e324a2a138171975017a01703f7f25c5

SHA1
72795be8fa85a9550ce048e776dc8cc93ff69001

SHA256
4789a7a58f6d8f72c60f5b55de162b440353827aac1caf0613733c9a47c3a364

SHA512
17244ca41ccb871932078f1f7a309e8f97dfe33bd0c28973102e83a7b5c7de4fa87e3885dbfbd4a7f8b758e7f279832931a7d37c9a65ffaaca2920a16336ed82

Download Submit
C:\Users\Admin\AppData\Local\Temp\Nordvpn.exe

MD5
e324a2a138171975017a01703f7f25c5

SHA1
72795be8fa85a9550ce048e776dc8cc93ff69001

SHA256
4789a7a58f6d8f72c60f5b55de162b440353827aac1caf0613733c9a47c3a364

SHA512
17244ca41ccb871932078f1f7a309e8f97dfe33bd0c28973102e83a7b5c7de4fa87e3885dbfbd4a7f8b758e7f279832931a7d37c9a65ffaaca2920a16336ed82

Download Submit
memory/4012-114-0x0000000000000000-mapping.dmp

Download
memory/4012-117-0x0000000000850000-0x0000000000851000-memory.dmp

Filesize
4KB

Download
memory/4012-118-0x00000000027D0000-0x0000000002829000-memory.dmp

Filesize
356KB

Download
memory/4164-119-0x0000000000400000-0x000000000040C000-memory.dmp

Filesize
48KB

Download
memory/4164-125-0x000000000040748E-mapping.dmp

Download
memory/4164-126-0x0000000000DB0000-0x0000000000DB1000-memory.dmp

Filesize
4KB

Download
memory/4292-127-0x0000000000000000-mapping.dmp

Download
memory/4432-124-0x0000000005A60000-0x0000000005A61000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads