njrat | faba2545712ac8049dcc8f3a00ec2be9ab18bbf93f0cd4f8b7582505a3cfec88

General

Target

Payload.exe
Size

55KB
MD5

9207071fcd7c38c11ebc273ebffb9231
SHA1

ab0825aafcf4f674f5f58e4174a24e6589e7e5f1
SHA256

faba2545712ac8049dcc8f3a00ec2be9ab18bbf93f0cd4f8b7582505a3cfec88
SHA512

15b09fae18cdbcb519f516f777e4e17fd16711296dc37b43902fecb9fb2007a518b9b3821cc49fa8342351fb6a8a7d9aced2b1fe828f5caaac349bc6710d5267
SSDEEP

768:+Ba6lOt1Man8E2N6FikUt34okSN/mwFvfu0YMDHPsfL7XJSxI3pmSm:+B1cDnCN6FikSJDOwsNMD2XExI3pmSm

Score

10^/10

njrat discovery persistence trojan

Malware Config

Signatures

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

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

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\Control Panel\International\Geo\Nation	Payload.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\e564aa028dc627deeaa119b78ed54d5e.exe	dllhost.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\e564aa028dc627deeaa119b78ed54d5e.exe	dllhost.exe

Executes dropped EXE 1 IoCs

pid	Process
3956	dllhost.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\e564aa028dc627deeaa119b78ed54d5e = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\dllhost.exe\" .."	dllhost.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\e564aa028dc627deeaa119b78ed54d5e = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\dllhost.exe\" .."	dllhost.exe

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

System Information Discovery
T1082

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	Payload.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	dllhost.exe

Suspicious use of AdjustPrivilegeToken 35 IoCs

description	pid	Process
Token: SeDebugPrivilege	3956	dllhost.exe
Token: 33	3956	dllhost.exe
Token: SeIncBasePriorityPrivilege	3956	dllhost.exe
Token: 33	3956	dllhost.exe
Token: SeIncBasePriorityPrivilege	3956	dllhost.exe
Token: 33	3956	dllhost.exe
Token: SeIncBasePriorityPrivilege	3956	dllhost.exe
Token: 33	3956	dllhost.exe
Token: SeIncBasePriorityPrivilege	3956	dllhost.exe
Token: 33	3956	dllhost.exe
Token: SeIncBasePriorityPrivilege	3956	dllhost.exe
Token: 33	3956	dllhost.exe
Token: SeIncBasePriorityPrivilege	3956	dllhost.exe
Token: 33	3956	dllhost.exe
Token: SeIncBasePriorityPrivilege	3956	dllhost.exe
Token: 33	3956	dllhost.exe
Token: SeIncBasePriorityPrivilege	3956	dllhost.exe
Token: 33	3956	dllhost.exe
Token: SeIncBasePriorityPrivilege	3956	dllhost.exe
Token: 33	3956	dllhost.exe
Token: SeIncBasePriorityPrivilege	3956	dllhost.exe
Token: 33	3956	dllhost.exe
Token: SeIncBasePriorityPrivilege	3956	dllhost.exe
Token: 33	3956	dllhost.exe
Token: SeIncBasePriorityPrivilege	3956	dllhost.exe
Token: 33	3956	dllhost.exe
Token: SeIncBasePriorityPrivilege	3956	dllhost.exe
Token: 33	3956	dllhost.exe
Token: SeIncBasePriorityPrivilege	3956	dllhost.exe
Token: 33	3956	dllhost.exe
Token: SeIncBasePriorityPrivilege	3956	dllhost.exe
Token: 33	3956	dllhost.exe
Token: SeIncBasePriorityPrivilege	3956	dllhost.exe
Token: 33	3956	dllhost.exe
Token: SeIncBasePriorityPrivilege	3956	dllhost.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 2968 wrote to memory of 3956	2968	Payload.exe	82
PID 2968 wrote to memory of 3956	2968	Payload.exe	82
PID 2968 wrote to memory of 3956	2968	Payload.exe	82

C:\Users\Admin\AppData\Local\Temp\Payload.exe
"C:\Users\Admin\AppData\Local\Temp\Payload.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2968
- C:\Users\Admin\AppData\Local\Temp\dllhost.exe
  "C:\Users\Admin\AppData\Local\Temp\dllhost.exe"
  2⤵
  - Drops startup file
  - Executes dropped EXE
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  PID:3956

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\dllhost.exe

Filesize
55KB

MD5
9207071fcd7c38c11ebc273ebffb9231

SHA1
ab0825aafcf4f674f5f58e4174a24e6589e7e5f1

SHA256
faba2545712ac8049dcc8f3a00ec2be9ab18bbf93f0cd4f8b7582505a3cfec88

SHA512
15b09fae18cdbcb519f516f777e4e17fd16711296dc37b43902fecb9fb2007a518b9b3821cc49fa8342351fb6a8a7d9aced2b1fe828f5caaac349bc6710d5267

Download Submit
memory/2968-14-0x0000000074F70000-0x0000000075521000-memory.dmp

Filesize
5.7MB

Download
memory/2968-2-0x0000000074F70000-0x0000000075521000-memory.dmp

Filesize
5.7MB

Download
memory/2968-1-0x0000000074F70000-0x0000000075521000-memory.dmp

Filesize
5.7MB

Download
memory/2968-0-0x0000000074F72000-0x0000000074F73000-memory.dmp

Filesize
4KB

Download
memory/3956-12-0x0000000074F70000-0x0000000075521000-memory.dmp

Filesize
5.7MB

Download
memory/3956-15-0x0000000074F70000-0x0000000075521000-memory.dmp

Filesize
5.7MB

Download
memory/3956-13-0x0000000074F70000-0x0000000075521000-memory.dmp

Filesize
5.7MB

Download
memory/3956-17-0x0000000074F70000-0x0000000075521000-memory.dmp

Filesize
5.7MB

Download
memory/3956-18-0x0000000074F70000-0x0000000075521000-memory.dmp

Filesize
5.7MB

Download
memory/3956-19-0x0000000074F70000-0x0000000075521000-memory.dmp

Filesize
5.7MB

Download
memory/3956-20-0x0000000074F70000-0x0000000075521000-memory.dmp

Filesize
5.7MB

Download
memory/3956-21-0x0000000074F70000-0x0000000075521000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads