njrat | e3f6501aaa3be057e71652fdf93468152af66cfe1b5a8a2f9160a574718d5fd3

General

Target

e3f6501aaa3be057e71652fdf93468152af66cfe1b5a8a2f9160a574718d5fd3.exe
Size

360KB
MD5

8fa430d15200fa6144308a89e197b592
SHA1

715be47225e20e324c5647a6b89fbeba462ef7e2
SHA256

e3f6501aaa3be057e71652fdf93468152af66cfe1b5a8a2f9160a574718d5fd3
SHA512

77b205f2d997c9f3fad307077d1b5d46bd7d687bf6059f0ee5ce897c9ba972dc3fc35c17e3db9a362dc6b9c48da7028134291d65cb77fcf0a42c72adf72a8490
SSDEEP

6144:G/ahq9fdsVc9yk9fPdzeGZndtGomtPdm5+S+oM/t7u022hoXA4huW5CsDniCQ4yT:h4fdFVZnd0omtFUk/A0h2uWAsjiCoFNb

Score

10^/10

njrat evasion persistence trojan

Malware Config

Signatures

njRAT/Bladabindi
Widely used RAT written in .NET.
trojan njrat
Executes dropped EXE 1 IoCs

Processes:

svchost.exe

pid process

3468 svchost.exe
Modifies Windows Firewall 1 TTPs 1 IoCs
evasion

Modify Existing Service
T1031

Processes:

netsh.exe

pid process

3572 netsh.exe

pid	process
3468	svchost.exe

pid	process
3572	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:

e3f6501aaa3be057e71652fdf93468152af66cfe1b5a8a2f9160a574718d5fd3.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Control Panel\International\Geo\Nation	e3f6501aaa3be057e71652fdf93468152af66cfe1b5a8a2f9160a574718d5fd3.exe

Drops startup file 2 IoCs

Processes:

svchost.exe

description	ioc	process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\3db166ddf8eda41ea0294b2b337cfbe9.exe	svchost.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\3db166ddf8eda41ea0294b2b337cfbe9.exe	svchost.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

svchost.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\3db166ddf8eda41ea0294b2b337cfbe9 = "\"C:\\Users\\Admin\\svchost.exe\" .."	svchost.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\3db166ddf8eda41ea0294b2b337cfbe9 = "\"C:\\Users\\Admin\\svchost.exe\" .."	svchost.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 33 IoCs

Processes:

svchost.exe

description	pid	process
Token: SeDebugPrivilege	3468	svchost.exe
Token: 33	3468	svchost.exe
Token: SeIncBasePriorityPrivilege	3468	svchost.exe
Token: 33	3468	svchost.exe
Token: SeIncBasePriorityPrivilege	3468	svchost.exe
Token: 33	3468	svchost.exe
Token: SeIncBasePriorityPrivilege	3468	svchost.exe
Token: 33	3468	svchost.exe
Token: SeIncBasePriorityPrivilege	3468	svchost.exe
Token: 33	3468	svchost.exe
Token: SeIncBasePriorityPrivilege	3468	svchost.exe
Token: 33	3468	svchost.exe
Token: SeIncBasePriorityPrivilege	3468	svchost.exe
Token: 33	3468	svchost.exe
Token: SeIncBasePriorityPrivilege	3468	svchost.exe
Token: 33	3468	svchost.exe
Token: SeIncBasePriorityPrivilege	3468	svchost.exe
Token: 33	3468	svchost.exe
Token: SeIncBasePriorityPrivilege	3468	svchost.exe
Token: 33	3468	svchost.exe
Token: SeIncBasePriorityPrivilege	3468	svchost.exe
Token: 33	3468	svchost.exe
Token: SeIncBasePriorityPrivilege	3468	svchost.exe
Token: 33	3468	svchost.exe
Token: SeIncBasePriorityPrivilege	3468	svchost.exe
Token: 33	3468	svchost.exe
Token: SeIncBasePriorityPrivilege	3468	svchost.exe
Token: 33	3468	svchost.exe
Token: SeIncBasePriorityPrivilege	3468	svchost.exe
Token: 33	3468	svchost.exe
Token: SeIncBasePriorityPrivilege	3468	svchost.exe
Token: 33	3468	svchost.exe
Token: SeIncBasePriorityPrivilege	3468	svchost.exe

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

e3f6501aaa3be057e71652fdf93468152af66cfe1b5a8a2f9160a574718d5fd3.exesvchost.exe

description	pid	process	target process
PID 1780 wrote to memory of 3468	1780	e3f6501aaa3be057e71652fdf93468152af66cfe1b5a8a2f9160a574718d5fd3.exe	svchost.exe
PID 1780 wrote to memory of 3468	1780	e3f6501aaa3be057e71652fdf93468152af66cfe1b5a8a2f9160a574718d5fd3.exe	svchost.exe
PID 3468 wrote to memory of 3572	3468	svchost.exe	netsh.exe
PID 3468 wrote to memory of 3572	3468	svchost.exe	netsh.exe

C:\Users\Admin\AppData\Local\Temp\e3f6501aaa3be057e71652fdf93468152af66cfe1b5a8a2f9160a574718d5fd3.exe
"C:\Users\Admin\AppData\Local\Temp\e3f6501aaa3be057e71652fdf93468152af66cfe1b5a8a2f9160a574718d5fd3.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:1780

C:\Users\Admin\svchost.exe
"C:\Users\Admin\svchost.exe"
2⤵
- Executes dropped EXE
- Drops startup file
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3468

C:\Windows\SYSTEM32\netsh.exe
netsh firewall add allowedprogram "C:\Users\Admin\svchost.exe" "svchost.exe" ENABLE
3⤵
- Modifies Windows Firewall
PID:3572

Network

MITRE ATT&CK Enterprise 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

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\svchost.exe

Filesize
360KB

MD5
8fa430d15200fa6144308a89e197b592

SHA1
715be47225e20e324c5647a6b89fbeba462ef7e2

SHA256
e3f6501aaa3be057e71652fdf93468152af66cfe1b5a8a2f9160a574718d5fd3

SHA512
77b205f2d997c9f3fad307077d1b5d46bd7d687bf6059f0ee5ce897c9ba972dc3fc35c17e3db9a362dc6b9c48da7028134291d65cb77fcf0a42c72adf72a8490

Download Submit
C:\Users\Admin\svchost.exe

Filesize
360KB

MD5
8fa430d15200fa6144308a89e197b592

SHA1
715be47225e20e324c5647a6b89fbeba462ef7e2

SHA256
e3f6501aaa3be057e71652fdf93468152af66cfe1b5a8a2f9160a574718d5fd3

SHA512
77b205f2d997c9f3fad307077d1b5d46bd7d687bf6059f0ee5ce897c9ba972dc3fc35c17e3db9a362dc6b9c48da7028134291d65cb77fcf0a42c72adf72a8490

Download Submit
memory/1780-132-0x0000000000C00000-0x0000000000C60000-memory.dmp

Filesize
384KB

Download
memory/1780-133-0x00007FFC52A60000-0x00007FFC53521000-memory.dmp

Filesize
10.8MB

Download
memory/1780-137-0x00007FFC52A60000-0x00007FFC53521000-memory.dmp

Filesize
10.8MB

Download
memory/3468-134-0x0000000000000000-mapping.dmp

Download
memory/3468-138-0x00007FFC52A60000-0x00007FFC53521000-memory.dmp

Filesize
10.8MB

Download
memory/3468-140-0x00007FFC52A60000-0x00007FFC53521000-memory.dmp

Filesize
10.8MB

Download
memory/3572-139-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads