njrat | e1d05919dc9857ac80d2dfebcfdb8aded6d74d5fa29e786d076bf5403d6455f6

General

Target

e1d05919dc9857ac80d2dfebcfdb8aded6d74d5fa29e786d076bf5403d6455f6N.exe
Size

552KB
MD5

bb4985bd673d0458a4f52a155e0eb4c0
SHA1

f009f6298dd924d3c3de26f6a5a17661ac543b94
SHA256

e1d05919dc9857ac80d2dfebcfdb8aded6d74d5fa29e786d076bf5403d6455f6
SHA512

ff8644baf277a1aa9160e278077ac8f26b2365b225535bc839289a73be31996acf06d9c75882e6e3bcca4b0f83cad894023a2d78af986c9b86178b22fc3b6830
SSDEEP

12288:R32kYn9YFZBsws0rwfQpP9p/yFUk6l6X3cWCauQWannR8fq:RGk69IS0rw4pP9p416QMaBnRCq

Score

10^/10

njrat oct discovery trojan

Malware Config

Extracted

Family

njrat

Version

0.7.3

Botnet

OCT

C2

film.royalprop.trade:8109

Mutex

update.exe

Attributes

reg_key
update.exe
splitter
0987

Signatures

njRAT/Bladabindi
Widely used RAT written in .NET.
trojan njrat

Drops startup file 1 IoCs

description	ioc	Process
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\sftp.url	e1d05919dc9857ac80d2dfebcfdb8aded6d74d5fa29e786d076bf5403d6455f6N.exe

AutoIT Executable 5 IoCs

AutoIT scripts compiled to PE executables.

resource	yara_rule
behavioral2/memory/4484-1-0x0000000000400000-0x0000000000569000-memory.dmp	autoit_exe
behavioral2/memory/4484-2-0x0000000000400000-0x0000000000569000-memory.dmp	autoit_exe
behavioral2/memory/4484-3-0x0000000000400000-0x0000000000569000-memory.dmp	autoit_exe
behavioral2/memory/4484-4-0x0000000000400000-0x0000000000569000-memory.dmp	autoit_exe
behavioral2/memory/4484-17-0x0000000000400000-0x0000000000569000-memory.dmp	autoit_exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4484 set thread context of 4052	4484	e1d05919dc9857ac80d2dfebcfdb8aded6d74d5fa29e786d076bf5403d6455f6N.exe	91

System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	e1d05919dc9857ac80d2dfebcfdb8aded6d74d5fa29e786d076bf5403d6455f6N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	RegAsm.exe

Suspicious use of AdjustPrivilegeToken 21 IoCs

description	pid	Process
Token: SeDebugPrivilege	4052	RegAsm.exe
Token: 33	4052	RegAsm.exe
Token: SeIncBasePriorityPrivilege	4052	RegAsm.exe
Token: 33	4052	RegAsm.exe
Token: SeIncBasePriorityPrivilege	4052	RegAsm.exe
Token: 33	4052	RegAsm.exe
Token: SeIncBasePriorityPrivilege	4052	RegAsm.exe
Token: 33	4052	RegAsm.exe
Token: SeIncBasePriorityPrivilege	4052	RegAsm.exe
Token: 33	4052	RegAsm.exe
Token: SeIncBasePriorityPrivilege	4052	RegAsm.exe
Token: 33	4052	RegAsm.exe
Token: SeIncBasePriorityPrivilege	4052	RegAsm.exe
Token: 33	4052	RegAsm.exe
Token: SeIncBasePriorityPrivilege	4052	RegAsm.exe
Token: 33	4052	RegAsm.exe
Token: SeIncBasePriorityPrivilege	4052	RegAsm.exe
Token: 33	4052	RegAsm.exe
Token: SeIncBasePriorityPrivilege	4052	RegAsm.exe
Token: 33	4052	RegAsm.exe
Token: SeIncBasePriorityPrivilege	4052	RegAsm.exe

Suspicious use of FindShellTrayWindow 3 IoCs

pid	Process
4484	e1d05919dc9857ac80d2dfebcfdb8aded6d74d5fa29e786d076bf5403d6455f6N.exe
4484	e1d05919dc9857ac80d2dfebcfdb8aded6d74d5fa29e786d076bf5403d6455f6N.exe
4484	e1d05919dc9857ac80d2dfebcfdb8aded6d74d5fa29e786d076bf5403d6455f6N.exe

Suspicious use of SendNotifyMessage 3 IoCs

pid	Process
4484	e1d05919dc9857ac80d2dfebcfdb8aded6d74d5fa29e786d076bf5403d6455f6N.exe
4484	e1d05919dc9857ac80d2dfebcfdb8aded6d74d5fa29e786d076bf5403d6455f6N.exe
4484	e1d05919dc9857ac80d2dfebcfdb8aded6d74d5fa29e786d076bf5403d6455f6N.exe

Suspicious use of WriteProcessMemory 5 IoCs

description	pid	Process	procid_target
PID 4484 wrote to memory of 4052	4484	e1d05919dc9857ac80d2dfebcfdb8aded6d74d5fa29e786d076bf5403d6455f6N.exe	91
PID 4484 wrote to memory of 4052	4484	e1d05919dc9857ac80d2dfebcfdb8aded6d74d5fa29e786d076bf5403d6455f6N.exe	91
PID 4484 wrote to memory of 4052	4484	e1d05919dc9857ac80d2dfebcfdb8aded6d74d5fa29e786d076bf5403d6455f6N.exe	91
PID 4484 wrote to memory of 4052	4484	e1d05919dc9857ac80d2dfebcfdb8aded6d74d5fa29e786d076bf5403d6455f6N.exe	91
PID 4484 wrote to memory of 4052	4484	e1d05919dc9857ac80d2dfebcfdb8aded6d74d5fa29e786d076bf5403d6455f6N.exe	91

C:\Users\Admin\AppData\Local\Temp\e1d05919dc9857ac80d2dfebcfdb8aded6d74d5fa29e786d076bf5403d6455f6N.exe
"C:\Users\Admin\AppData\Local\Temp\e1d05919dc9857ac80d2dfebcfdb8aded6d74d5fa29e786d076bf5403d6455f6N.exe"
1⤵
- Drops startup file
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:4484
- C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
  "C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  PID:4052

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

memory/4052-19-0x00000000749D0000-0x0000000074F81000-memory.dmp

Filesize
5.7MB

Download
memory/4052-18-0x00000000749D2000-0x00000000749D3000-memory.dmp

Filesize
4KB

Download
memory/4052-23-0x00000000749D0000-0x0000000074F81000-memory.dmp

Filesize
5.7MB

Download
memory/4052-22-0x00000000749D0000-0x0000000074F81000-memory.dmp

Filesize
5.7MB

Download
memory/4052-21-0x00000000749D2000-0x00000000749D3000-memory.dmp

Filesize
4KB

Download
memory/4052-20-0x00000000749D0000-0x0000000074F81000-memory.dmp

Filesize
5.7MB

Download
memory/4052-11-0x0000000000500000-0x000000000051A000-memory.dmp

Filesize
104KB

Download
memory/4484-1-0x0000000000400000-0x0000000000569000-memory.dmp

Filesize
1.4MB

Download
memory/4484-10-0x0000000000C60000-0x0000000000C61000-memory.dmp

Filesize
4KB

Download
memory/4484-0-0x0000000000400000-0x0000000000569000-memory.dmp

Filesize
1.4MB

Download
memory/4484-17-0x0000000000400000-0x0000000000569000-memory.dmp

Filesize
1.4MB

Download
memory/4484-4-0x0000000000400000-0x0000000000569000-memory.dmp

Filesize
1.4MB

Download
memory/4484-3-0x0000000000400000-0x0000000000569000-memory.dmp

Filesize
1.4MB

Download
memory/4484-2-0x0000000000400000-0x0000000000569000-memory.dmp

Filesize
1.4MB

Download

Analysis

Sharing