njrat | cd9c6c3774a1465f229f729469ac9a73561f883a3f980625198571dc9c82a4c4

General

Target

tmp.exe
Size

23KB
MD5

a92ef911215a303fc49de97c4c6d837f
SHA1

cfbb4b778d946dde68746cc8160f75f02f975d1a
SHA256

cd9c6c3774a1465f229f729469ac9a73561f883a3f980625198571dc9c82a4c4
SHA512

7ebce5b426033cdf54bb006f2c8ceb3a47cb49b4cf7207c65425df535e707b27a2b4a901dd297ba14955a4ad873bfe76ca2442a18ad73db51f9b957c9645a615
SSDEEP

384:yY324bcgPiJLQrfARGSRUJsbY6ZgvSMBD3t8mRvR6JZlbw8hqIusZzZmM:lL2s+tRyRpcnus

Score

10^/10

njrat hacked evasion persistence trojan

Malware Config

Extracted

Family

njrat

Version

0.7d

Botnet

HacKed

C2

needforrat.hopto.org:7772

Mutex

47b887645f4457386c0b55e0a170685a

Attributes

reg_key
47b887645f4457386c0b55e0a170685a
splitter
|'|'|

Signatures

njRAT/Bladabindi
Widely used RAT written in .NET.
trojan njrat
Modifies Windows Firewall 1 TTPs 1 IoCs
evasion

Windows Service
T1543.003

Processes:

netsh.exe

pid process

1616 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:

tmp.exe

description ioc process

Key value queried \REGISTRY\USER\S-1-5-21-1873812795-1433807462-1429862679-1000\Control Panel\International\Geo\Nation tmp.exe

pid	process
1616	netsh.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-1873812795-1433807462-1429862679-1000\Control Panel\International\Geo\Nation	tmp.exe

Drops startup file 2 IoCs

Processes:

server.exe

description	ioc	process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\47b887645f4457386c0b55e0a170685a.exe	server.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\47b887645f4457386c0b55e0a170685a.exe	server.exe

Executes dropped EXE 1 IoCs

Processes:

server.exe

pid process

1168 server.exe

pid	process
1168	server.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

server.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\47b887645f4457386c0b55e0a170685a = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\server.exe\" .."	server.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1873812795-1433807462-1429862679-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\47b887645f4457386c0b55e0a170685a = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\server.exe\" .."	server.exe

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

System Information Discovery
T1082

Suspicious use of AdjustPrivilegeToken 33 IoCs

Processes:

server.exe

description	pid	process
Token: SeDebugPrivilege	1168	server.exe
Token: 33	1168	server.exe
Token: SeIncBasePriorityPrivilege	1168	server.exe
Token: 33	1168	server.exe
Token: SeIncBasePriorityPrivilege	1168	server.exe
Token: 33	1168	server.exe
Token: SeIncBasePriorityPrivilege	1168	server.exe
Token: 33	1168	server.exe
Token: SeIncBasePriorityPrivilege	1168	server.exe
Token: 33	1168	server.exe
Token: SeIncBasePriorityPrivilege	1168	server.exe
Token: 33	1168	server.exe
Token: SeIncBasePriorityPrivilege	1168	server.exe
Token: 33	1168	server.exe
Token: SeIncBasePriorityPrivilege	1168	server.exe
Token: 33	1168	server.exe
Token: SeIncBasePriorityPrivilege	1168	server.exe
Token: 33	1168	server.exe
Token: SeIncBasePriorityPrivilege	1168	server.exe
Token: 33	1168	server.exe
Token: SeIncBasePriorityPrivilege	1168	server.exe
Token: 33	1168	server.exe
Token: SeIncBasePriorityPrivilege	1168	server.exe
Token: 33	1168	server.exe
Token: SeIncBasePriorityPrivilege	1168	server.exe
Token: 33	1168	server.exe
Token: SeIncBasePriorityPrivilege	1168	server.exe
Token: 33	1168	server.exe
Token: SeIncBasePriorityPrivilege	1168	server.exe
Token: 33	1168	server.exe
Token: SeIncBasePriorityPrivilege	1168	server.exe
Token: 33	1168	server.exe
Token: SeIncBasePriorityPrivilege	1168	server.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

tmp.exeserver.exe

description	pid	process	target process
PID 4124 wrote to memory of 1168	4124	tmp.exe	server.exe
PID 4124 wrote to memory of 1168	4124	tmp.exe	server.exe
PID 4124 wrote to memory of 1168	4124	tmp.exe	server.exe
PID 1168 wrote to memory of 1616	1168	server.exe	netsh.exe
PID 1168 wrote to memory of 1616	1168	server.exe	netsh.exe
PID 1168 wrote to memory of 1616	1168	server.exe	netsh.exe

C:\Users\Admin\AppData\Local\Temp\tmp.exe
"C:\Users\Admin\AppData\Local\Temp\tmp.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4124

C:\Users\Admin\AppData\Local\Temp\server.exe
"C:\Users\Admin\AppData\Local\Temp\server.exe"
2⤵
- Drops startup file
- Executes dropped EXE
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1168

C:\Windows\SysWOW64\netsh.exe
netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\server.exe" "server.exe" ENABLE
3⤵
- Modifies Windows Firewall
PID:1616

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

Create or Modify System Process

1

T1543

Windows Service

1

T1543.003

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Create or Modify System Process

1

T1543

Windows Service

1

T1543.003

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

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Downloads

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

Filesize
23KB

MD5
a92ef911215a303fc49de97c4c6d837f

SHA1
cfbb4b778d946dde68746cc8160f75f02f975d1a

SHA256
cd9c6c3774a1465f229f729469ac9a73561f883a3f980625198571dc9c82a4c4

SHA512
7ebce5b426033cdf54bb006f2c8ceb3a47cb49b4cf7207c65425df535e707b27a2b4a901dd297ba14955a4ad873bfe76ca2442a18ad73db51f9b957c9645a615

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

Filesize
23KB

MD5
a92ef911215a303fc49de97c4c6d837f

SHA1
cfbb4b778d946dde68746cc8160f75f02f975d1a

SHA256
cd9c6c3774a1465f229f729469ac9a73561f883a3f980625198571dc9c82a4c4

SHA512
7ebce5b426033cdf54bb006f2c8ceb3a47cb49b4cf7207c65425df535e707b27a2b4a901dd297ba14955a4ad873bfe76ca2442a18ad73db51f9b957c9645a615

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

Filesize
23KB

MD5
a92ef911215a303fc49de97c4c6d837f

SHA1
cfbb4b778d946dde68746cc8160f75f02f975d1a

SHA256
cd9c6c3774a1465f229f729469ac9a73561f883a3f980625198571dc9c82a4c4

SHA512
7ebce5b426033cdf54bb006f2c8ceb3a47cb49b4cf7207c65425df535e707b27a2b4a901dd297ba14955a4ad873bfe76ca2442a18ad73db51f9b957c9645a615

Download Submit
memory/1168-13-0x0000000074680000-0x0000000074C31000-memory.dmp

Filesize
5.7MB

Download
memory/1168-14-0x0000000000E00000-0x0000000000E10000-memory.dmp

Filesize
64KB

Download
memory/1168-15-0x0000000074680000-0x0000000074C31000-memory.dmp

Filesize
5.7MB

Download
memory/1168-17-0x0000000074680000-0x0000000074C31000-memory.dmp

Filesize
5.7MB

Download
memory/1168-18-0x0000000000E00000-0x0000000000E10000-memory.dmp

Filesize
64KB

Download
memory/4124-0-0x0000000074680000-0x0000000074C31000-memory.dmp

Filesize
5.7MB

Download
memory/4124-1-0x0000000074680000-0x0000000074C31000-memory.dmp

Filesize
5.7MB

Download
memory/4124-2-0x0000000000E20000-0x0000000000E30000-memory.dmp

Filesize
64KB

Download
memory/4124-12-0x0000000074680000-0x0000000074C31000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads