njrat | ab5d169e4e341c46b6555d63f3ed530b9d63bf072d44581b56c37bf896b3ddbd

General

Target

ab5d169e4e341c46b6555d63f3ed530b9d63bf072d44581b56c37bf896b3ddbdN.exe
Size

552KB
MD5

0c7d40b626d372d4a11cd4f8a4cb1d60
SHA1

338968dd963bdff857e6a0b49b0a928ee524c881
SHA256

ab5d169e4e341c46b6555d63f3ed530b9d63bf072d44581b56c37bf896b3ddbd
SHA512

f39cae0c20cec5b5c9ef87f59d62eb9a272f25a5cdcf444813c864d9b6fe95fb35cc2219637653ff5a656d54b27a68966f33496555a3fda6f387fc6a6942b5bc
SSDEEP

12288:R32kYn9YFZBsws0rwfQpP9p/yFUk6l6X3cWCauQWannR8fC:RGk69IS0rw4pP9p416QMaBnRCC

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

Processes:

ab5d169e4e341c46b6555d63f3ed530b9d63bf072d44581b56c37bf896b3ddbdN.exe

description	ioc	process
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\sftp.url	ab5d169e4e341c46b6555d63f3ed530b9d63bf072d44581b56c37bf896b3ddbdN.exe

AutoIT Executable 5 IoCs

AutoIT scripts compiled to PE executables.

Processes:

resource	yara_rule
behavioral2/memory/2448-1-0x0000000000400000-0x0000000000569000-memory.dmp	autoit_exe
behavioral2/memory/2448-2-0x0000000000400000-0x0000000000569000-memory.dmp	autoit_exe
behavioral2/memory/2448-3-0x0000000000400000-0x0000000000569000-memory.dmp	autoit_exe
behavioral2/memory/2448-4-0x0000000000400000-0x0000000000569000-memory.dmp	autoit_exe
behavioral2/memory/2448-17-0x0000000000400000-0x0000000000569000-memory.dmp	autoit_exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

ab5d169e4e341c46b6555d63f3ed530b9d63bf072d44581b56c37bf896b3ddbdN.exe

description	pid	process	target process
PID 2448 set thread context of 1288	2448	ab5d169e4e341c46b6555d63f3ed530b9d63bf072d44581b56c37bf896b3ddbdN.exe	RegAsm.exe

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

Processes:

ab5d169e4e341c46b6555d63f3ed530b9d63bf072d44581b56c37bf896b3ddbdN.exeRegAsm.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	ab5d169e4e341c46b6555d63f3ed530b9d63bf072d44581b56c37bf896b3ddbdN.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	RegAsm.exe

Suspicious use of AdjustPrivilegeToken 21 IoCs

Processes:

RegAsm.exe

description	pid	process
Token: SeDebugPrivilege	1288	RegAsm.exe
Token: 33	1288	RegAsm.exe
Token: SeIncBasePriorityPrivilege	1288	RegAsm.exe
Token: 33	1288	RegAsm.exe
Token: SeIncBasePriorityPrivilege	1288	RegAsm.exe
Token: 33	1288	RegAsm.exe
Token: SeIncBasePriorityPrivilege	1288	RegAsm.exe
Token: 33	1288	RegAsm.exe
Token: SeIncBasePriorityPrivilege	1288	RegAsm.exe
Token: 33	1288	RegAsm.exe
Token: SeIncBasePriorityPrivilege	1288	RegAsm.exe
Token: 33	1288	RegAsm.exe
Token: SeIncBasePriorityPrivilege	1288	RegAsm.exe
Token: 33	1288	RegAsm.exe
Token: SeIncBasePriorityPrivilege	1288	RegAsm.exe
Token: 33	1288	RegAsm.exe
Token: SeIncBasePriorityPrivilege	1288	RegAsm.exe
Token: 33	1288	RegAsm.exe
Token: SeIncBasePriorityPrivilege	1288	RegAsm.exe
Token: 33	1288	RegAsm.exe
Token: SeIncBasePriorityPrivilege	1288	RegAsm.exe

Suspicious use of FindShellTrayWindow 3 IoCs

Processes:

ab5d169e4e341c46b6555d63f3ed530b9d63bf072d44581b56c37bf896b3ddbdN.exe

pid	process
2448	ab5d169e4e341c46b6555d63f3ed530b9d63bf072d44581b56c37bf896b3ddbdN.exe
2448	ab5d169e4e341c46b6555d63f3ed530b9d63bf072d44581b56c37bf896b3ddbdN.exe
2448	ab5d169e4e341c46b6555d63f3ed530b9d63bf072d44581b56c37bf896b3ddbdN.exe

Suspicious use of SendNotifyMessage 3 IoCs

Processes:

ab5d169e4e341c46b6555d63f3ed530b9d63bf072d44581b56c37bf896b3ddbdN.exe

pid	process
2448	ab5d169e4e341c46b6555d63f3ed530b9d63bf072d44581b56c37bf896b3ddbdN.exe
2448	ab5d169e4e341c46b6555d63f3ed530b9d63bf072d44581b56c37bf896b3ddbdN.exe
2448	ab5d169e4e341c46b6555d63f3ed530b9d63bf072d44581b56c37bf896b3ddbdN.exe

Suspicious use of WriteProcessMemory 5 IoCs

Processes:

ab5d169e4e341c46b6555d63f3ed530b9d63bf072d44581b56c37bf896b3ddbdN.exe

description	pid	process	target process
PID 2448 wrote to memory of 1288	2448	ab5d169e4e341c46b6555d63f3ed530b9d63bf072d44581b56c37bf896b3ddbdN.exe	RegAsm.exe
PID 2448 wrote to memory of 1288	2448	ab5d169e4e341c46b6555d63f3ed530b9d63bf072d44581b56c37bf896b3ddbdN.exe	RegAsm.exe
PID 2448 wrote to memory of 1288	2448	ab5d169e4e341c46b6555d63f3ed530b9d63bf072d44581b56c37bf896b3ddbdN.exe	RegAsm.exe
PID 2448 wrote to memory of 1288	2448	ab5d169e4e341c46b6555d63f3ed530b9d63bf072d44581b56c37bf896b3ddbdN.exe	RegAsm.exe
PID 2448 wrote to memory of 1288	2448	ab5d169e4e341c46b6555d63f3ed530b9d63bf072d44581b56c37bf896b3ddbdN.exe	RegAsm.exe

C:\Users\Admin\AppData\Local\Temp\ab5d169e4e341c46b6555d63f3ed530b9d63bf072d44581b56c37bf896b3ddbdN.exe
"C:\Users\Admin\AppData\Local\Temp\ab5d169e4e341c46b6555d63f3ed530b9d63bf072d44581b56c37bf896b3ddbdN.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:2448
- 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:1288

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

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Downloads

memory/1288-20-0x0000000074910000-0x0000000074EC1000-memory.dmp

Filesize
5.7MB

Download
memory/1288-18-0x0000000074912000-0x0000000074913000-memory.dmp

Filesize
4KB

Download
memory/1288-23-0x0000000074910000-0x0000000074EC1000-memory.dmp

Filesize
5.7MB

Download
memory/1288-22-0x0000000074910000-0x0000000074EC1000-memory.dmp

Filesize
5.7MB

Download
memory/1288-21-0x0000000074912000-0x0000000074913000-memory.dmp

Filesize
4KB

Download
memory/1288-19-0x0000000074910000-0x0000000074EC1000-memory.dmp

Filesize
5.7MB

Download
memory/1288-11-0x0000000000500000-0x000000000051A000-memory.dmp

Filesize
104KB

Download
memory/2448-1-0x0000000000400000-0x0000000000569000-memory.dmp

Filesize
1.4MB

Download
memory/2448-10-0x0000000003400000-0x0000000003401000-memory.dmp

Filesize
4KB

Download
memory/2448-0-0x0000000000400000-0x0000000000569000-memory.dmp

Filesize
1.4MB

Download
memory/2448-17-0x0000000000400000-0x0000000000569000-memory.dmp

Filesize
1.4MB

Download
memory/2448-4-0x0000000000400000-0x0000000000569000-memory.dmp

Filesize
1.4MB

Download
memory/2448-3-0x0000000000400000-0x0000000000569000-memory.dmp

Filesize
1.4MB

Download
memory/2448-2-0x0000000000400000-0x0000000000569000-memory.dmp

Filesize
1.4MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads