njrat | b93964a24a76be614b5f938c93bd67dd1280ac10589e8cd7d7efe50e46bd2e96

General

Target

b93964a24a76be614b5f938c93bd67dd1280ac10589e8cd7d7efe50e46bd2e96.exe
Size

39KB
MD5

6c8428a6835c2f4a064087284ed79c80
SHA1

aba0d38fd50805873ffbeebf3e0bb4be61befacd
SHA256

b93964a24a76be614b5f938c93bd67dd1280ac10589e8cd7d7efe50e46bd2e96
SHA512

b08959b7fcd1bb748047f95bd04e3286a2b1c3d0aefdd4878c4cfdd3f754b11de1526de6d078bf8ffe3471a3b8dbf9d6c330bcd35ef9456377ca7226296fb1ab
SSDEEP

768:XGOy+4tZFblxitXM1vGelWw4+lDo1s3lMs+4coTzBo01+3VYmBYphQ:py+4tZFYM1DlWulDo1IA4co3B3+3JipS

Score

10^/10

njrat hacked evasion persistence trojan

Malware Config

Extracted

Family

njrat

Version

0.7d

Botnet

HacKed

C2

127.0.0.1:1177

Mutex

212683d986fb740ad6a40184df48e604

Attributes

reg_key
212683d986fb740ad6a40184df48e604
splitter
|'|'|

Signatures

njRAT/Bladabindi
Widely used RAT written in .NET.
trojan njrat
Executes dropped EXE 2 IoCs

Processes:

server.exeserver.exe

pid process

400 server.exe
4088 server.exe
Modifies Windows Firewall 1 TTPs 1 IoCs
evasion

Modify Existing Service
T1031

Processes:

netsh.exe

pid process

2580 netsh.exe

pid	process
400	server.exe
4088	server.exe

pid	process
2580	netsh.exe

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

Processes:

b93964a24a76be614b5f938c93bd67dd1280ac10589e8cd7d7efe50e46bd2e96.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Control Panel\International\Geo\Nation	b93964a24a76be614b5f938c93bd67dd1280ac10589e8cd7d7efe50e46bd2e96.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

server.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\212683d986fb740ad6a40184df48e604 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\server.exe\" .."	server.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\212683d986fb740ad6a40184df48e604 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\server.exe\" .."	server.exe

Suspicious use of SetThreadContext 2 IoCs

Processes:

b93964a24a76be614b5f938c93bd67dd1280ac10589e8cd7d7efe50e46bd2e96.exeserver.exe

description	pid	process	target process
PID 3164 set thread context of 1092	3164	b93964a24a76be614b5f938c93bd67dd1280ac10589e8cd7d7efe50e46bd2e96.exe	b93964a24a76be614b5f938c93bd67dd1280ac10589e8cd7d7efe50e46bd2e96.exe
PID 400 set thread context of 4088	400	server.exe	server.exe

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

System Information Discovery
T1082

Suspicious use of AdjustPrivilegeToken 21 IoCs

Processes:

server.exe

description	pid	process
Token: SeDebugPrivilege	4088	server.exe
Token: 33	4088	server.exe
Token: SeIncBasePriorityPrivilege	4088	server.exe
Token: 33	4088	server.exe
Token: SeIncBasePriorityPrivilege	4088	server.exe
Token: 33	4088	server.exe
Token: SeIncBasePriorityPrivilege	4088	server.exe
Token: 33	4088	server.exe
Token: SeIncBasePriorityPrivilege	4088	server.exe
Token: 33	4088	server.exe
Token: SeIncBasePriorityPrivilege	4088	server.exe
Token: 33	4088	server.exe
Token: SeIncBasePriorityPrivilege	4088	server.exe
Token: 33	4088	server.exe
Token: SeIncBasePriorityPrivilege	4088	server.exe
Token: 33	4088	server.exe
Token: SeIncBasePriorityPrivilege	4088	server.exe
Token: 33	4088	server.exe
Token: SeIncBasePriorityPrivilege	4088	server.exe
Token: 33	4088	server.exe
Token: SeIncBasePriorityPrivilege	4088	server.exe

Suspicious use of WriteProcessMemory 16 IoCs

Processes:

b93964a24a76be614b5f938c93bd67dd1280ac10589e8cd7d7efe50e46bd2e96.exeb93964a24a76be614b5f938c93bd67dd1280ac10589e8cd7d7efe50e46bd2e96.exeserver.exeserver.exe

description	pid	process	target process
PID 3164 wrote to memory of 1092	3164	b93964a24a76be614b5f938c93bd67dd1280ac10589e8cd7d7efe50e46bd2e96.exe	b93964a24a76be614b5f938c93bd67dd1280ac10589e8cd7d7efe50e46bd2e96.exe
PID 3164 wrote to memory of 1092	3164	b93964a24a76be614b5f938c93bd67dd1280ac10589e8cd7d7efe50e46bd2e96.exe	b93964a24a76be614b5f938c93bd67dd1280ac10589e8cd7d7efe50e46bd2e96.exe
PID 3164 wrote to memory of 1092	3164	b93964a24a76be614b5f938c93bd67dd1280ac10589e8cd7d7efe50e46bd2e96.exe	b93964a24a76be614b5f938c93bd67dd1280ac10589e8cd7d7efe50e46bd2e96.exe
PID 3164 wrote to memory of 1092	3164	b93964a24a76be614b5f938c93bd67dd1280ac10589e8cd7d7efe50e46bd2e96.exe	b93964a24a76be614b5f938c93bd67dd1280ac10589e8cd7d7efe50e46bd2e96.exe
PID 3164 wrote to memory of 1092	3164	b93964a24a76be614b5f938c93bd67dd1280ac10589e8cd7d7efe50e46bd2e96.exe	b93964a24a76be614b5f938c93bd67dd1280ac10589e8cd7d7efe50e46bd2e96.exe
PID 1092 wrote to memory of 400	1092	b93964a24a76be614b5f938c93bd67dd1280ac10589e8cd7d7efe50e46bd2e96.exe	server.exe
PID 1092 wrote to memory of 400	1092	b93964a24a76be614b5f938c93bd67dd1280ac10589e8cd7d7efe50e46bd2e96.exe	server.exe
PID 1092 wrote to memory of 400	1092	b93964a24a76be614b5f938c93bd67dd1280ac10589e8cd7d7efe50e46bd2e96.exe	server.exe
PID 400 wrote to memory of 4088	400	server.exe	server.exe
PID 400 wrote to memory of 4088	400	server.exe	server.exe
PID 400 wrote to memory of 4088	400	server.exe	server.exe
PID 400 wrote to memory of 4088	400	server.exe	server.exe
PID 400 wrote to memory of 4088	400	server.exe	server.exe
PID 4088 wrote to memory of 2580	4088	server.exe	netsh.exe
PID 4088 wrote to memory of 2580	4088	server.exe	netsh.exe
PID 4088 wrote to memory of 2580	4088	server.exe	netsh.exe

C:\Users\Admin\AppData\Local\Temp\b93964a24a76be614b5f938c93bd67dd1280ac10589e8cd7d7efe50e46bd2e96.exe
"C:\Users\Admin\AppData\Local\Temp\b93964a24a76be614b5f938c93bd67dd1280ac10589e8cd7d7efe50e46bd2e96.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:3164

C:\Users\Admin\AppData\Local\Temp\b93964a24a76be614b5f938c93bd67dd1280ac10589e8cd7d7efe50e46bd2e96.exe
C:\Users\Admin\AppData\Local\Temp\b93964a24a76be614b5f938c93bd67dd1280ac10589e8cd7d7efe50e46bd2e96.exe
2⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:1092

C:\Users\Admin\AppData\Local\Temp\server.exe
"C:\Users\Admin\AppData\Local\Temp\server.exe"
3⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:400

C:\Users\Admin\AppData\Local\Temp\server.exe
C:\Users\Admin\AppData\Local\Temp\server.exe
4⤵
- Executes dropped EXE
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4088

C:\Windows\SysWOW64\netsh.exe
netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\server.exe" "server.exe" ENABLE
5⤵
- Modifies Windows Firewall
PID:2580

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Modify Existing Service

1

T1031

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v2.0_32\UsageLogs\b93964a24a76be614b5f938c93bd67dd1280ac10589e8cd7d7efe50e46bd2e96.exe.log
Filesize
223B

MD5
cde6529abeea500fb852f29ba0da6115

SHA1
45f2f48492417ae6a0eade8aaa808d3d1d760743

SHA256
d7f4964443470b6729865676d76f5f1f416da633033071c34ea5eb19cdea53b5

SHA512
c95fa7faf6a90f32060dba70f79c4d66c68d6eec587306fb98f36fc3ba5d377ebf9dabf47298b71db208fb10f7ccb4e0ed82236c8f26bcc746552588bbb38234

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\CLR_v2.0_32\UsageLogs\server.exe.log
Filesize
223B

MD5
cde6529abeea500fb852f29ba0da6115

SHA1
45f2f48492417ae6a0eade8aaa808d3d1d760743

SHA256
d7f4964443470b6729865676d76f5f1f416da633033071c34ea5eb19cdea53b5

SHA512
c95fa7faf6a90f32060dba70f79c4d66c68d6eec587306fb98f36fc3ba5d377ebf9dabf47298b71db208fb10f7ccb4e0ed82236c8f26bcc746552588bbb38234

Download Submit
C:\Users\Admin\AppData\Local\Temp\server.exe
Filesize
39KB

MD5
6c8428a6835c2f4a064087284ed79c80

SHA1
aba0d38fd50805873ffbeebf3e0bb4be61befacd

SHA256
b93964a24a76be614b5f938c93bd67dd1280ac10589e8cd7d7efe50e46bd2e96

SHA512
b08959b7fcd1bb748047f95bd04e3286a2b1c3d0aefdd4878c4cfdd3f754b11de1526de6d078bf8ffe3471a3b8dbf9d6c330bcd35ef9456377ca7226296fb1ab

Download Submit
C:\Users\Admin\AppData\Local\Temp\server.exe
Filesize
39KB

MD5
6c8428a6835c2f4a064087284ed79c80

SHA1
aba0d38fd50805873ffbeebf3e0bb4be61befacd

SHA256
b93964a24a76be614b5f938c93bd67dd1280ac10589e8cd7d7efe50e46bd2e96

SHA512
b08959b7fcd1bb748047f95bd04e3286a2b1c3d0aefdd4878c4cfdd3f754b11de1526de6d078bf8ffe3471a3b8dbf9d6c330bcd35ef9456377ca7226296fb1ab

Download Submit
C:\Users\Admin\AppData\Local\Temp\server.exe
Filesize
39KB

MD5
6c8428a6835c2f4a064087284ed79c80

SHA1
aba0d38fd50805873ffbeebf3e0bb4be61befacd

SHA256
b93964a24a76be614b5f938c93bd67dd1280ac10589e8cd7d7efe50e46bd2e96

SHA512
b08959b7fcd1bb748047f95bd04e3286a2b1c3d0aefdd4878c4cfdd3f754b11de1526de6d078bf8ffe3471a3b8dbf9d6c330bcd35ef9456377ca7226296fb1ab

Download Submit
memory/400-140-0x0000000000000000-mapping.dmp

Download
memory/400-148-0x0000000074AB0000-0x0000000075061000-memory.dmp

Filesize
5.7MB

Download
memory/1092-135-0x0000000000400000-0x000000000040C000-memory.dmp

Filesize
48KB

Download
memory/1092-139-0x0000000074AB0000-0x0000000075061000-memory.dmp

Filesize
5.7MB

Download
memory/1092-138-0x0000000074AB0000-0x0000000075061000-memory.dmp

Filesize
5.7MB

Download
memory/1092-134-0x0000000000000000-mapping.dmp

Download
memory/1092-143-0x0000000074AB0000-0x0000000075061000-memory.dmp

Filesize
5.7MB

Download
memory/2580-150-0x0000000000000000-mapping.dmp

Download
memory/3164-137-0x0000000074AB0000-0x0000000075061000-memory.dmp

Filesize
5.7MB

Download
memory/3164-133-0x0000000074AB0000-0x0000000075061000-memory.dmp

Filesize
5.7MB

Download
memory/4088-149-0x0000000074AB0000-0x0000000075061000-memory.dmp

Filesize
5.7MB

Download
memory/4088-144-0x0000000000000000-mapping.dmp

Download
memory/4088-151-0x0000000074AB0000-0x0000000075061000-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