njrat | 8097383fc8d67a40c647b8e892fc7a28a68dc82fa16f51303ae99a5e82c61969

General

Target

8097383fc8d67a40c647b8e892fc7a28a68dc82fa16f51303ae99a5e82c61969.exe
Size

919KB
MD5

396b59946e1211f68e52677de66ccbc6
SHA1

fd051f956b1a6764945464666395b077f2ea5462
SHA256

8097383fc8d67a40c647b8e892fc7a28a68dc82fa16f51303ae99a5e82c61969
SHA512

65030131559f23b61503da19e5725527847247d349022441f07dfdb47a58085484f2825624a6a9feb8bbfe0048a46bd37afe73cd409262bcbbfdd9df538a4712

Score

10^/10

njrat fourth#4 evasion trojan

Malware Config

Extracted

Family

njrat

Version

0.7d

Botnet

fourth#4

C2

soft98.linkpc.net:5550

Mutex

10e93180d6481ad63a77c2b255d40864

Attributes

reg_key
10e93180d6481ad63a77c2b255d40864
splitter
|'|'|

Signatures

njRAT/Bladabindi
Widely used RAT written in .NET.
trojan njrat
Modifies Windows Firewall 1 TTPs 1 IoCs
evasion

Modify Existing Service
T1031

Processes:

netsh.exe

pid process

976 netsh.exe

pid	process
976	netsh.exe

Drops startup file 1 IoCs

Processes:

8097383fc8d67a40c647b8e892fc7a28a68dc82fa16f51303ae99a5e82c61969.exe

description	ioc	process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Host Process for Windows Services.url	8097383fc8d67a40c647b8e892fc7a28a68dc82fa16f51303ae99a5e82c61969.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

8097383fc8d67a40c647b8e892fc7a28a68dc82fa16f51303ae99a5e82c61969.exe

description	pid	process	target process
PID 1424 set thread context of 3680	1424	8097383fc8d67a40c647b8e892fc7a28a68dc82fa16f51303ae99a5e82c61969.exe	RegAsm.exe

Suspicious use of AdjustPrivilegeToken 29 IoCs

Processes:

RegAsm.exe

description	pid	process
Token: SeDebugPrivilege	3680	RegAsm.exe
Token: 33	3680	RegAsm.exe
Token: SeIncBasePriorityPrivilege	3680	RegAsm.exe
Token: 33	3680	RegAsm.exe
Token: SeIncBasePriorityPrivilege	3680	RegAsm.exe
Token: 33	3680	RegAsm.exe
Token: SeIncBasePriorityPrivilege	3680	RegAsm.exe
Token: 33	3680	RegAsm.exe
Token: SeIncBasePriorityPrivilege	3680	RegAsm.exe
Token: 33	3680	RegAsm.exe
Token: SeIncBasePriorityPrivilege	3680	RegAsm.exe
Token: 33	3680	RegAsm.exe
Token: SeIncBasePriorityPrivilege	3680	RegAsm.exe
Token: 33	3680	RegAsm.exe
Token: SeIncBasePriorityPrivilege	3680	RegAsm.exe
Token: 33	3680	RegAsm.exe
Token: SeIncBasePriorityPrivilege	3680	RegAsm.exe
Token: 33	3680	RegAsm.exe
Token: SeIncBasePriorityPrivilege	3680	RegAsm.exe
Token: 33	3680	RegAsm.exe
Token: SeIncBasePriorityPrivilege	3680	RegAsm.exe
Token: 33	3680	RegAsm.exe
Token: SeIncBasePriorityPrivilege	3680	RegAsm.exe
Token: 33	3680	RegAsm.exe
Token: SeIncBasePriorityPrivilege	3680	RegAsm.exe
Token: 33	3680	RegAsm.exe
Token: SeIncBasePriorityPrivilege	3680	RegAsm.exe
Token: 33	3680	RegAsm.exe
Token: SeIncBasePriorityPrivilege	3680	RegAsm.exe

Suspicious use of FindShellTrayWindow 3 IoCs

Processes:

8097383fc8d67a40c647b8e892fc7a28a68dc82fa16f51303ae99a5e82c61969.exe

pid	process
1424	8097383fc8d67a40c647b8e892fc7a28a68dc82fa16f51303ae99a5e82c61969.exe
1424	8097383fc8d67a40c647b8e892fc7a28a68dc82fa16f51303ae99a5e82c61969.exe
1424	8097383fc8d67a40c647b8e892fc7a28a68dc82fa16f51303ae99a5e82c61969.exe

Suspicious use of SendNotifyMessage 3 IoCs

Processes:

8097383fc8d67a40c647b8e892fc7a28a68dc82fa16f51303ae99a5e82c61969.exe

pid	process
1424	8097383fc8d67a40c647b8e892fc7a28a68dc82fa16f51303ae99a5e82c61969.exe
1424	8097383fc8d67a40c647b8e892fc7a28a68dc82fa16f51303ae99a5e82c61969.exe
1424	8097383fc8d67a40c647b8e892fc7a28a68dc82fa16f51303ae99a5e82c61969.exe

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

8097383fc8d67a40c647b8e892fc7a28a68dc82fa16f51303ae99a5e82c61969.exeRegAsm.exe

description	pid	process	target process
PID 1424 wrote to memory of 3680	1424	8097383fc8d67a40c647b8e892fc7a28a68dc82fa16f51303ae99a5e82c61969.exe	RegAsm.exe
PID 1424 wrote to memory of 3680	1424	8097383fc8d67a40c647b8e892fc7a28a68dc82fa16f51303ae99a5e82c61969.exe	RegAsm.exe
PID 1424 wrote to memory of 3680	1424	8097383fc8d67a40c647b8e892fc7a28a68dc82fa16f51303ae99a5e82c61969.exe	RegAsm.exe
PID 1424 wrote to memory of 3680	1424	8097383fc8d67a40c647b8e892fc7a28a68dc82fa16f51303ae99a5e82c61969.exe	RegAsm.exe
PID 1424 wrote to memory of 3680	1424	8097383fc8d67a40c647b8e892fc7a28a68dc82fa16f51303ae99a5e82c61969.exe	RegAsm.exe
PID 3680 wrote to memory of 976	3680	RegAsm.exe	netsh.exe
PID 3680 wrote to memory of 976	3680	RegAsm.exe	netsh.exe
PID 3680 wrote to memory of 976	3680	RegAsm.exe	netsh.exe

C:\Users\Admin\AppData\Local\Temp\8097383fc8d67a40c647b8e892fc7a28a68dc82fa16f51303ae99a5e82c61969.exe
"C:\Users\Admin\AppData\Local\Temp\8097383fc8d67a40c647b8e892fc7a28a68dc82fa16f51303ae99a5e82c61969.exe"
1⤵
- Drops startup file
- Suspicious use of SetThreadContext
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:1424

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:3680

C:\Windows\SysWOW64\netsh.exe
netsh firewall add allowedprogram "C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe" "RegAsm.exe" ENABLE
3⤵
- Modifies Windows Firewall
PID:976

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Modify Existing Service

1

T1031

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

memory/976-138-0x0000000000000000-mapping.dmp

Download
memory/3680-130-0x0000000000000000-mapping.dmp

Download
memory/3680-131-0x00000000005A0000-0x00000000005AC000-memory.dmp

Filesize
48KB

Download
memory/3680-136-0x0000000073E80000-0x0000000074431000-memory.dmp

Filesize
5.7MB

Download
memory/3680-137-0x0000000073E80000-0x0000000074431000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads