njrat | 9caf7f30a4c05e494861099f3d883851850d3b0f66d08fd01f1b9abc049bcb07

General

Target

9caf7f30a4c05e494861099f3d883851850d3b0f66d08fd01f1b9abc049bcb07.exe
Size

552KB
MD5

78e3045f72689b705ce806b206363733
SHA1

3033541dfb593c52c9975ea919041e087610b468
SHA256

9caf7f30a4c05e494861099f3d883851850d3b0f66d08fd01f1b9abc049bcb07
SHA512

289193a3d43d1c09ba1fb809b279b7c4de7bfae2068bff187815cd72bc0b3c098cda4a302ab3e3738214f2b99a76244d586712a905fbb4424ea425b596a52921
SSDEEP

12288:R32kYn9YFZBsws0rwfQpP9p/yFUk6l6X3cWCauQWannR8fj:RGk69IS0rw4pP9p416QMaBnRCj

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 family
njrat
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	9caf7f30a4c05e494861099f3d883851850d3b0f66d08fd01f1b9abc049bcb07.exe

AutoIT Executable 5 IoCs

AutoIT scripts compiled to PE executables.

resource	yara_rule
behavioral2/memory/4460-1-0x0000000000400000-0x0000000000569000-memory.dmp	autoit_exe
behavioral2/memory/4460-2-0x0000000000400000-0x0000000000569000-memory.dmp	autoit_exe
behavioral2/memory/4460-3-0x0000000000400000-0x0000000000569000-memory.dmp	autoit_exe
behavioral2/memory/4460-4-0x0000000000400000-0x0000000000569000-memory.dmp	autoit_exe
behavioral2/memory/4460-17-0x0000000000400000-0x0000000000569000-memory.dmp	autoit_exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4460 set thread context of 212	4460	9caf7f30a4c05e494861099f3d883851850d3b0f66d08fd01f1b9abc049bcb07.exe	100

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	9caf7f30a4c05e494861099f3d883851850d3b0f66d08fd01f1b9abc049bcb07.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	RegAsm.exe

Suspicious use of AdjustPrivilegeToken 27 IoCs

description	pid	Process
Token: SeDebugPrivilege	212	RegAsm.exe
Token: 33	212	RegAsm.exe
Token: SeIncBasePriorityPrivilege	212	RegAsm.exe
Token: 33	212	RegAsm.exe
Token: SeIncBasePriorityPrivilege	212	RegAsm.exe
Token: 33	212	RegAsm.exe
Token: SeIncBasePriorityPrivilege	212	RegAsm.exe
Token: 33	212	RegAsm.exe
Token: SeIncBasePriorityPrivilege	212	RegAsm.exe
Token: 33	212	RegAsm.exe
Token: SeIncBasePriorityPrivilege	212	RegAsm.exe
Token: 33	212	RegAsm.exe
Token: SeIncBasePriorityPrivilege	212	RegAsm.exe
Token: 33	212	RegAsm.exe
Token: SeIncBasePriorityPrivilege	212	RegAsm.exe
Token: 33	212	RegAsm.exe
Token: SeIncBasePriorityPrivilege	212	RegAsm.exe
Token: 33	212	RegAsm.exe
Token: SeIncBasePriorityPrivilege	212	RegAsm.exe
Token: 33	212	RegAsm.exe
Token: SeIncBasePriorityPrivilege	212	RegAsm.exe
Token: 33	212	RegAsm.exe
Token: SeIncBasePriorityPrivilege	212	RegAsm.exe
Token: 33	212	RegAsm.exe
Token: SeIncBasePriorityPrivilege	212	RegAsm.exe
Token: 33	212	RegAsm.exe
Token: SeIncBasePriorityPrivilege	212	RegAsm.exe

Suspicious use of FindShellTrayWindow 3 IoCs

pid	Process
4460	9caf7f30a4c05e494861099f3d883851850d3b0f66d08fd01f1b9abc049bcb07.exe
4460	9caf7f30a4c05e494861099f3d883851850d3b0f66d08fd01f1b9abc049bcb07.exe
4460	9caf7f30a4c05e494861099f3d883851850d3b0f66d08fd01f1b9abc049bcb07.exe

Suspicious use of SendNotifyMessage 3 IoCs

pid	Process
4460	9caf7f30a4c05e494861099f3d883851850d3b0f66d08fd01f1b9abc049bcb07.exe
4460	9caf7f30a4c05e494861099f3d883851850d3b0f66d08fd01f1b9abc049bcb07.exe
4460	9caf7f30a4c05e494861099f3d883851850d3b0f66d08fd01f1b9abc049bcb07.exe

Suspicious use of WriteProcessMemory 5 IoCs

description	pid	Process	procid_target
PID 4460 wrote to memory of 212	4460	9caf7f30a4c05e494861099f3d883851850d3b0f66d08fd01f1b9abc049bcb07.exe	100
PID 4460 wrote to memory of 212	4460	9caf7f30a4c05e494861099f3d883851850d3b0f66d08fd01f1b9abc049bcb07.exe	100
PID 4460 wrote to memory of 212	4460	9caf7f30a4c05e494861099f3d883851850d3b0f66d08fd01f1b9abc049bcb07.exe	100
PID 4460 wrote to memory of 212	4460	9caf7f30a4c05e494861099f3d883851850d3b0f66d08fd01f1b9abc049bcb07.exe	100
PID 4460 wrote to memory of 212	4460	9caf7f30a4c05e494861099f3d883851850d3b0f66d08fd01f1b9abc049bcb07.exe	100

C:\Users\Admin\AppData\Local\Temp\9caf7f30a4c05e494861099f3d883851850d3b0f66d08fd01f1b9abc049bcb07.exe
"C:\Users\Admin\AppData\Local\Temp\9caf7f30a4c05e494861099f3d883851850d3b0f66d08fd01f1b9abc049bcb07.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:4460
- 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:212

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/212-19-0x0000000074760000-0x0000000074D11000-memory.dmp

Filesize
5.7MB

Download
memory/212-18-0x0000000074762000-0x0000000074763000-memory.dmp

Filesize
4KB

Download
memory/212-23-0x0000000074760000-0x0000000074D11000-memory.dmp

Filesize
5.7MB

Download
memory/212-22-0x0000000074760000-0x0000000074D11000-memory.dmp

Filesize
5.7MB

Download
memory/212-21-0x0000000074762000-0x0000000074763000-memory.dmp

Filesize
4KB

Download
memory/212-20-0x0000000074760000-0x0000000074D11000-memory.dmp

Filesize
5.7MB

Download
memory/212-11-0x0000000000400000-0x000000000041A000-memory.dmp

Filesize
104KB

Download
memory/4460-1-0x0000000000400000-0x0000000000569000-memory.dmp

Filesize
1.4MB

Download
memory/4460-10-0x0000000000B30000-0x0000000000B31000-memory.dmp

Filesize
4KB

Download
memory/4460-0-0x0000000000400000-0x0000000000569000-memory.dmp

Filesize
1.4MB

Download
memory/4460-17-0x0000000000400000-0x0000000000569000-memory.dmp

Filesize
1.4MB

Download
memory/4460-4-0x0000000000400000-0x0000000000569000-memory.dmp

Filesize
1.4MB

Download
memory/4460-3-0x0000000000400000-0x0000000000569000-memory.dmp

Filesize
1.4MB

Download
memory/4460-2-0x0000000000400000-0x0000000000569000-memory.dmp

Filesize
1.4MB

Download

Analysis

Sharing