njrat | 4a6fd719619ff72fa045f8fe1c386407d5819d321819119ffb5908bc40626865

General

Target

4a6fd719619ff72fa045f8fe1c386407d5819d321819119ffb5908bc40626865.exe
Size

252KB
MD5

6dc9f85dc63d88d82305ee118a6dc35b
SHA1

0ad2a307a342ddf2f5f24f6ef80bffcc51bf912f
SHA256

4a6fd719619ff72fa045f8fe1c386407d5819d321819119ffb5908bc40626865
SHA512

a051cbbf93e2854d4b4249c013606f6ac20a4d50cbdf597786e006d739cf78454eb0f0ca0bc4a3a8e102143cb9cfcd09b0d3aa184c6874a554fba8bba912d64c
SSDEEP

6144:bnx1pFOA758zGjdZAxlhGLnv4LNStRpRzAtpJkWl:DOA18zGuGDARSzAXl

Score

10^/10

njrat hacked evasion persistence trojan

Malware Config

Extracted

Family

njrat

Version

0.6.4

Botnet

HacKed

C2

snopi.ddns.net:9100

Mutex

5bfa04bf4e1b1b13538ee68039ccfeba

Attributes

reg_key
5bfa04bf4e1b1b13538ee68039ccfeba
splitter
|'|'|

Signatures

njRAT/Bladabindi
Widely used RAT written in .NET.
trojan njrat
Modifies Windows Firewall 2 TTPs 1 IoCs
evasion

Windows Service
T1543.003

Disable or Modify System Firewall
T1562.004

Processes:

netsh.exe

pid process

2684 netsh.exe
Executes dropped EXE 3 IoCs

Processes:

..exefb.exesmart.exe

pid process

2096 ..exe
2588 fb.exe
2500 smart.exe

pid	process
2684	netsh.exe

pid	process
2096	..exe
2588	fb.exe
2500	smart.exe

Loads dropped DLL 3 IoCs

Processes:

4a6fd719619ff72fa045f8fe1c386407d5819d321819119ffb5908bc40626865.exe..exe

pid	process
1908	4a6fd719619ff72fa045f8fe1c386407d5819d321819119ffb5908bc40626865.exe
1908	4a6fd719619ff72fa045f8fe1c386407d5819d321819119ffb5908bc40626865.exe
2096	..exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

smart.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000\Software\Microsoft\Windows\CurrentVersion\Run\5bfa04bf4e1b1b13538ee68039ccfeba = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\smart.exe\" .."	smart.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\5bfa04bf4e1b1b13538ee68039ccfeba = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\smart.exe\" .."	smart.exe

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

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 22 IoCs

Processes:

smart.exe

pid	process
2500	smart.exe
2500	smart.exe
2500	smart.exe
2500	smart.exe
2500	smart.exe
2500	smart.exe
2500	smart.exe
2500	smart.exe
2500	smart.exe
2500	smart.exe
2500	smart.exe
2500	smart.exe
2500	smart.exe
2500	smart.exe
2500	smart.exe
2500	smart.exe
2500	smart.exe
2500	smart.exe
2500	smart.exe
2500	smart.exe
2500	smart.exe
2500	smart.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

smart.exe

description pid process

Token: SeDebugPrivilege 2500 smart.exe

description	pid	process
Token: SeDebugPrivilege	2500	smart.exe

Suspicious use of WriteProcessMemory 16 IoCs

Processes:

4a6fd719619ff72fa045f8fe1c386407d5819d321819119ffb5908bc40626865.exe..exesmart.exe

description	pid	process	target process
PID 1908 wrote to memory of 2096	1908	4a6fd719619ff72fa045f8fe1c386407d5819d321819119ffb5908bc40626865.exe	..exe
PID 1908 wrote to memory of 2096	1908	4a6fd719619ff72fa045f8fe1c386407d5819d321819119ffb5908bc40626865.exe	..exe
PID 1908 wrote to memory of 2096	1908	4a6fd719619ff72fa045f8fe1c386407d5819d321819119ffb5908bc40626865.exe	..exe
PID 1908 wrote to memory of 2096	1908	4a6fd719619ff72fa045f8fe1c386407d5819d321819119ffb5908bc40626865.exe	..exe
PID 1908 wrote to memory of 2588	1908	4a6fd719619ff72fa045f8fe1c386407d5819d321819119ffb5908bc40626865.exe	fb.exe
PID 1908 wrote to memory of 2588	1908	4a6fd719619ff72fa045f8fe1c386407d5819d321819119ffb5908bc40626865.exe	fb.exe
PID 1908 wrote to memory of 2588	1908	4a6fd719619ff72fa045f8fe1c386407d5819d321819119ffb5908bc40626865.exe	fb.exe
PID 1908 wrote to memory of 2588	1908	4a6fd719619ff72fa045f8fe1c386407d5819d321819119ffb5908bc40626865.exe	fb.exe
PID 2096 wrote to memory of 2500	2096	..exe	smart.exe
PID 2096 wrote to memory of 2500	2096	..exe	smart.exe
PID 2096 wrote to memory of 2500	2096	..exe	smart.exe
PID 2096 wrote to memory of 2500	2096	..exe	smart.exe
PID 2500 wrote to memory of 2684	2500	smart.exe	netsh.exe
PID 2500 wrote to memory of 2684	2500	smart.exe	netsh.exe
PID 2500 wrote to memory of 2684	2500	smart.exe	netsh.exe
PID 2500 wrote to memory of 2684	2500	smart.exe	netsh.exe

C:\Users\Admin\AppData\Local\Temp\4a6fd719619ff72fa045f8fe1c386407d5819d321819119ffb5908bc40626865.exe
"C:\Users\Admin\AppData\Local\Temp\4a6fd719619ff72fa045f8fe1c386407d5819d321819119ffb5908bc40626865.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1908

C:\Users\Admin\AppData\Local\Temp\..exe
"C:\Users\Admin\AppData\Local\Temp\..exe"
2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2096

C:\Users\Admin\AppData\Local\Temp\smart.exe
"C:\Users\Admin\AppData\Local\Temp\smart.exe"
3⤵
- Executes dropped EXE
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2500

C:\Windows\SysWOW64\netsh.exe
netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\smart.exe" "smart.exe" ENABLE
4⤵
- Modifies Windows Firewall
PID:2684

C:\Users\Admin\AppData\Local\Temp\fb.exe
"C:\Users\Admin\AppData\Local\Temp\fb.exe"
2⤵
- Executes dropped EXE
PID:2588

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

Impair Defenses

1

T1562

Disable or Modify System Firewall

Modify Registry

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

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

Filesize
348KB

MD5
e4ef92e29a8783494b782f36b4945197

SHA1
f8cbd43814bee27349e88aec712c15fd5f8827e5

SHA256
934a506ab96759ed32ba1d0bd73191f0369b90af62ad52a934f577e5d1823161

SHA512
a1c38125b841e23223c7daf4230a6c4cfdec9dfef7d7a986ab6b037ba9de0be3744f6f53d24aa1ae03451ff7848695f33fb5effe8da3d5e455f3e630b54a4187

Download Submit
\Users\Admin\AppData\Local\Temp\..exe

Filesize
97KB

MD5
6b2f9bd816a587fc95b180165fc2de52

SHA1
883d0273809933c3f1c8c3028a3292a6b6b685a3

SHA256
3e724526d13e04bd577505dca03ce99a84ec6b51997b08bcb91b998ef724f5ec

SHA512
1b588c9ab8251c0f7389944cc9ba79c2ff17c37c1824743e06f0634c1a159835b3744b1a6e8718e1c2594832a913d657cb7d35b4eb7faed613f5e0fced8d1cea

Download Submit
memory/2096-15-0x00000000000D0000-0x00000000000F0000-memory.dmp

Filesize
128KB

Download
memory/2096-17-0x0000000073FB0000-0x000000007469E000-memory.dmp

Filesize
6.9MB

Download
memory/2096-18-0x0000000001D70000-0x0000000001D7E000-memory.dmp

Filesize
56KB

Download
memory/2096-27-0x0000000073FB0000-0x000000007469E000-memory.dmp

Filesize
6.9MB

Download
memory/2500-26-0x00000000013A0000-0x00000000013C0000-memory.dmp

Filesize
128KB

Download
memory/2588-14-0x0000000073FBE000-0x0000000073FBF000-memory.dmp

Filesize
4KB

Download
memory/2588-16-0x0000000000270000-0x00000000002CE000-memory.dmp

Filesize
376KB

Download
memory/2588-28-0x0000000073FBE000-0x0000000073FBF000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads