njrat | df67b2bfef15688b2b3ea0987c3e7826068000704edab330b14d0f71856bab21

General

Target

419ece99dc9b500ee2575264c281b4e7.exe
Size

23KB
MD5

419ece99dc9b500ee2575264c281b4e7
SHA1

2883dfa794df393d497471cfb2f3e9d4ee76c78b
SHA256

df67b2bfef15688b2b3ea0987c3e7826068000704edab330b14d0f71856bab21
SHA512

b9714d20efbce321dd009da31ced829c240d82f8923ed5daf4b5b060df9319847e6312950831d6597c43a2addff6e12954f133abb0e1cd4d81b83c8120b8cf1a
SSDEEP

384:ksqS+ER6vRKXGYKRWVSujUtX9w6Dglo61Z5DVmRvR6JZlbw8hqIusZzZ/PL:Lf65K2Yf1jKRpcnug

Score

10^/10

njrat hacked evasion persistence trojan

Malware Config

Extracted

Family

njrat

Version

0.7d

Botnet

HacKed

C2

shakeu123.duckdns.org:1666

Mutex

5754ab9e1340992a5b2648d125137082

Attributes

reg_key
5754ab9e1340992a5b2648d125137082
splitter
|'|'|

Signatures

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

Processes:

Server.exe

pid process

1440 Server.exe
Modifies Windows Firewall 1 TTPs 1 IoCs
evasion

Modify Existing Service
T1031

Processes:

netsh.exe

pid process

3940 netsh.exe

pid	process
1440	Server.exe

pid	process
3940	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:

419ece99dc9b500ee2575264c281b4e7.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Control Panel\International\Geo\Nation	419ece99dc9b500ee2575264c281b4e7.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\5754ab9e1340992a5b2648d125137082.exe	Server.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\5754ab9e1340992a5b2648d125137082.exe	Server.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-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\5754ab9e1340992a5b2648d125137082 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\Server.exe\" .."	Server.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\5754ab9e1340992a5b2648d125137082 = "\"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 35 IoCs

Processes:

Server.exe

description	pid	process
Token: SeDebugPrivilege	1440	Server.exe
Token: 33	1440	Server.exe
Token: SeIncBasePriorityPrivilege	1440	Server.exe
Token: 33	1440	Server.exe
Token: SeIncBasePriorityPrivilege	1440	Server.exe
Token: 33	1440	Server.exe
Token: SeIncBasePriorityPrivilege	1440	Server.exe
Token: 33	1440	Server.exe
Token: SeIncBasePriorityPrivilege	1440	Server.exe
Token: 33	1440	Server.exe
Token: SeIncBasePriorityPrivilege	1440	Server.exe
Token: 33	1440	Server.exe
Token: SeIncBasePriorityPrivilege	1440	Server.exe
Token: 33	1440	Server.exe
Token: SeIncBasePriorityPrivilege	1440	Server.exe
Token: 33	1440	Server.exe
Token: SeIncBasePriorityPrivilege	1440	Server.exe
Token: 33	1440	Server.exe
Token: SeIncBasePriorityPrivilege	1440	Server.exe
Token: 33	1440	Server.exe
Token: SeIncBasePriorityPrivilege	1440	Server.exe
Token: 33	1440	Server.exe
Token: SeIncBasePriorityPrivilege	1440	Server.exe
Token: 33	1440	Server.exe
Token: SeIncBasePriorityPrivilege	1440	Server.exe
Token: 33	1440	Server.exe
Token: SeIncBasePriorityPrivilege	1440	Server.exe
Token: 33	1440	Server.exe
Token: SeIncBasePriorityPrivilege	1440	Server.exe
Token: 33	1440	Server.exe
Token: SeIncBasePriorityPrivilege	1440	Server.exe
Token: 33	1440	Server.exe
Token: SeIncBasePriorityPrivilege	1440	Server.exe
Token: 33	1440	Server.exe
Token: SeIncBasePriorityPrivilege	1440	Server.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

419ece99dc9b500ee2575264c281b4e7.exeServer.exe

description	pid	process	target process
PID 3764 wrote to memory of 1440	3764	419ece99dc9b500ee2575264c281b4e7.exe	Server.exe
PID 3764 wrote to memory of 1440	3764	419ece99dc9b500ee2575264c281b4e7.exe	Server.exe
PID 3764 wrote to memory of 1440	3764	419ece99dc9b500ee2575264c281b4e7.exe	Server.exe
PID 1440 wrote to memory of 3940	1440	Server.exe	netsh.exe
PID 1440 wrote to memory of 3940	1440	Server.exe	netsh.exe
PID 1440 wrote to memory of 3940	1440	Server.exe	netsh.exe

C:\Users\Admin\AppData\Local\Temp\419ece99dc9b500ee2575264c281b4e7.exe
"C:\Users\Admin\AppData\Local\Temp\419ece99dc9b500ee2575264c281b4e7.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:3764

C:\Users\Admin\AppData\Local\Temp\Server.exe
"C:\Users\Admin\AppData\Local\Temp\Server.exe"
2⤵
- Executes dropped EXE
- Drops startup file
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1440

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:3940

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

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Downloads

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

MD5
419ece99dc9b500ee2575264c281b4e7

SHA1
2883dfa794df393d497471cfb2f3e9d4ee76c78b

SHA256
df67b2bfef15688b2b3ea0987c3e7826068000704edab330b14d0f71856bab21

SHA512
b9714d20efbce321dd009da31ced829c240d82f8923ed5daf4b5b060df9319847e6312950831d6597c43a2addff6e12954f133abb0e1cd4d81b83c8120b8cf1a

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

MD5
419ece99dc9b500ee2575264c281b4e7

SHA1
2883dfa794df393d497471cfb2f3e9d4ee76c78b

SHA256
df67b2bfef15688b2b3ea0987c3e7826068000704edab330b14d0f71856bab21

SHA512
b9714d20efbce321dd009da31ced829c240d82f8923ed5daf4b5b060df9319847e6312950831d6597c43a2addff6e12954f133abb0e1cd4d81b83c8120b8cf1a

Download Submit
memory/1440-133-0x0000000000000000-mapping.dmp

Download
memory/1440-137-0x0000000075190000-0x0000000075741000-memory.dmp

Filesize
5.7MB

Download
memory/1440-139-0x0000000075190000-0x0000000075741000-memory.dmp

Filesize
5.7MB

Download
memory/3764-132-0x0000000075190000-0x0000000075741000-memory.dmp

Filesize
5.7MB

Download
memory/3764-136-0x0000000075190000-0x0000000075741000-memory.dmp

Filesize
5.7MB

Download
memory/3940-138-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads