njrat | d5f936e0948611fc301c4ca8b85fc1012356a3f6f83e09e7c959087a4d5d6442

General

Target

d5f936e0948611fc301c4ca8b85fc1012356a3f6f83e09e7c959087a4d5d6442.exe
Size

23KB
MD5

5a8b08e5b56260b53bbf1222e3dda7b3
SHA1

f035b6f669365f18329406c036d9428019cae1c4
SHA256

d5f936e0948611fc301c4ca8b85fc1012356a3f6f83e09e7c959087a4d5d6442
SHA512

6236b614444c293c8aeae0bd16d33ac48c6e8e299ff4004e3448a1a2a048c992a995012d94b0f0c767cdb686ded8296a41ec219d5b0c4ffd29fa73912602a706
SSDEEP

384:zQeCo2zmZbQHkJeCdUwBvQ61gjuQBnB9mRvR6JZlbw8hqIusZzZHjd:k5yBVd7RpcnuC

Score

10^/10

njrat hacked evasion persistence trojan

Malware Config

Extracted

Family

njrat

Version

0.7d

Botnet

HacKed

C2

sahinerol1.no-ip.org:1221

Mutex

dc3fcc213130c10fcc359eeec1ff3b0f

Attributes

reg_key
dc3fcc213130c10fcc359eeec1ff3b0f
splitter
|'|'|

Signatures

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

Processes:

server.exe

pid process

4008 server.exe
Modifies Windows Firewall 1 TTPs 1 IoCs
evasion

Modify Existing Service
T1031

Processes:

netsh.exe

pid process

2720 netsh.exe

pid	process
4008	server.exe

pid	process
2720	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:

d5f936e0948611fc301c4ca8b85fc1012356a3f6f83e09e7c959087a4d5d6442.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\Control Panel\International\Geo\Nation	d5f936e0948611fc301c4ca8b85fc1012356a3f6f83e09e7c959087a4d5d6442.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-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\dc3fcc213130c10fcc359eeec1ff3b0f = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\server.exe\" .."	server.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\dc3fcc213130c10fcc359eeec1ff3b0f = "\"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). Likely ransomware behaviour.

System Information Discovery
T1082

Suspicious use of AdjustPrivilegeToken 9 IoCs

Processes:

server.exe

description	pid	process
Token: SeDebugPrivilege	4008	server.exe
Token: 33	4008	server.exe
Token: SeIncBasePriorityPrivilege	4008	server.exe
Token: 33	4008	server.exe
Token: SeIncBasePriorityPrivilege	4008	server.exe
Token: 33	4008	server.exe
Token: SeIncBasePriorityPrivilege	4008	server.exe
Token: 33	4008	server.exe
Token: SeIncBasePriorityPrivilege	4008	server.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

d5f936e0948611fc301c4ca8b85fc1012356a3f6f83e09e7c959087a4d5d6442.exeserver.exe

description	pid	process	target process
PID 3536 wrote to memory of 4008	3536	d5f936e0948611fc301c4ca8b85fc1012356a3f6f83e09e7c959087a4d5d6442.exe	server.exe
PID 3536 wrote to memory of 4008	3536	d5f936e0948611fc301c4ca8b85fc1012356a3f6f83e09e7c959087a4d5d6442.exe	server.exe
PID 3536 wrote to memory of 4008	3536	d5f936e0948611fc301c4ca8b85fc1012356a3f6f83e09e7c959087a4d5d6442.exe	server.exe
PID 4008 wrote to memory of 2720	4008	server.exe	netsh.exe
PID 4008 wrote to memory of 2720	4008	server.exe	netsh.exe
PID 4008 wrote to memory of 2720	4008	server.exe	netsh.exe

C:\Users\Admin\AppData\Local\Temp\d5f936e0948611fc301c4ca8b85fc1012356a3f6f83e09e7c959087a4d5d6442.exe
"C:\Users\Admin\AppData\Local\Temp\d5f936e0948611fc301c4ca8b85fc1012356a3f6f83e09e7c959087a4d5d6442.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:3536

C:\Users\Admin\AppData\Local\Temp\server.exe
"C:\Users\Admin\AppData\Local\Temp\server.exe"
2⤵
- Executes dropped EXE
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4008

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:2720

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

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Downloads

C:\Users\Admin\AppData\Local\Temp\server.exe
Filesize
23KB

MD5
5a8b08e5b56260b53bbf1222e3dda7b3

SHA1
f035b6f669365f18329406c036d9428019cae1c4

SHA256
d5f936e0948611fc301c4ca8b85fc1012356a3f6f83e09e7c959087a4d5d6442

SHA512
6236b614444c293c8aeae0bd16d33ac48c6e8e299ff4004e3448a1a2a048c992a995012d94b0f0c767cdb686ded8296a41ec219d5b0c4ffd29fa73912602a706

Download Submit
C:\Users\Admin\AppData\Local\Temp\server.exe
Filesize
23KB

MD5
5a8b08e5b56260b53bbf1222e3dda7b3

SHA1
f035b6f669365f18329406c036d9428019cae1c4

SHA256
d5f936e0948611fc301c4ca8b85fc1012356a3f6f83e09e7c959087a4d5d6442

SHA512
6236b614444c293c8aeae0bd16d33ac48c6e8e299ff4004e3448a1a2a048c992a995012d94b0f0c767cdb686ded8296a41ec219d5b0c4ffd29fa73912602a706

Download Submit
memory/2720-139-0x0000000000000000-mapping.dmp

Download
memory/3536-132-0x0000000074E50000-0x0000000075401000-memory.dmp

Filesize
5.7MB

Download
memory/3536-133-0x0000000074E50000-0x0000000075401000-memory.dmp

Filesize
5.7MB

Download
memory/3536-137-0x0000000074E50000-0x0000000075401000-memory.dmp

Filesize
5.7MB

Download
memory/4008-134-0x0000000000000000-mapping.dmp

Download
memory/4008-138-0x0000000074E50000-0x0000000075401000-memory.dmp

Filesize
5.7MB

Download
memory/4008-140-0x0000000074E50000-0x0000000075401000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads