njrat | 3649f08ce04d03624303cef3c3c466df9ecb052b4360113ba1a5044632ec20a8

Analysis

max time kernel
341s
max time network
361s
platform
windows10-2004_x64
resource
win10v2004-20221111-en
resource tags

arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
submitted
26-11-2022 08:42

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

3649f08ce04d03624303cef3c3c466df9ecb052b4360113ba1a5044632ec20a8.exe
Size

23KB
MD5

901551435000e0fdd9fe8e1fbcad8ec1
SHA1

32f0c052e96880aeb930d023e89c2b76dde716c0
SHA256

3649f08ce04d03624303cef3c3c466df9ecb052b4360113ba1a5044632ec20a8
SHA512

36312aaf8fcf9bcd14a63cae80d6f31d06cb39d925d6425cbf39b7a1b4efcf3486b2fbd40db5ec6b02efb14a903c249f3c824ad801ae287d6fc0280e5d0097f8
SSDEEP

384:w4Q+SAN7uprgvM5OSUswZXg69gbm4hfpFmRvR6JZlbw8hqIusZzZO8K:COaxVULRpcnurv

Score

10^/10

njrat bedo victims evasion persistence trojan

Malware Config

Extracted

Family

njrat

Version

0.7d

Botnet

Bedo Victims

bedo112.ddns.net:5552

Mutex

2d49626530415c0068a82a7da9bb7a16

Attributes

reg_key
2d49626530415c0068a82a7da9bb7a16
splitter
|'|'|

Signatures

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

Processes:

server.exe

pid process

4948 server.exe
Modifies Windows Firewall 1 TTPs 1 IoCs
evasion

Modify Existing Service
T1031

Processes:

netsh.exe

pid process

2344 netsh.exe

pid	process
4948	server.exe

pid	process
2344	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:

3649f08ce04d03624303cef3c3c466df9ecb052b4360113ba1a5044632ec20a8.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-2971393436-602173351-1645505021-1000\Control Panel\International\Geo\Nation	3649f08ce04d03624303cef3c3c466df9ecb052b4360113ba1a5044632ec20a8.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-1-5-21-2971393436-602173351-1645505021-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\2d49626530415c0068a82a7da9bb7a16 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\server.exe\" .."	server.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\2d49626530415c0068a82a7da9bb7a16 = "\"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 WriteProcessMemory 6 IoCs

Processes:

3649f08ce04d03624303cef3c3c466df9ecb052b4360113ba1a5044632ec20a8.exeserver.exe

description	pid	process	target process
PID 732 wrote to memory of 4948	732	3649f08ce04d03624303cef3c3c466df9ecb052b4360113ba1a5044632ec20a8.exe	server.exe
PID 732 wrote to memory of 4948	732	3649f08ce04d03624303cef3c3c466df9ecb052b4360113ba1a5044632ec20a8.exe	server.exe
PID 732 wrote to memory of 4948	732	3649f08ce04d03624303cef3c3c466df9ecb052b4360113ba1a5044632ec20a8.exe	server.exe
PID 4948 wrote to memory of 2344	4948	server.exe	netsh.exe
PID 4948 wrote to memory of 2344	4948	server.exe	netsh.exe
PID 4948 wrote to memory of 2344	4948	server.exe	netsh.exe

C:\Users\Admin\AppData\Local\Temp\3649f08ce04d03624303cef3c3c466df9ecb052b4360113ba1a5044632ec20a8.exe
"C:\Users\Admin\AppData\Local\Temp\3649f08ce04d03624303cef3c3c466df9ecb052b4360113ba1a5044632ec20a8.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:732

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 WriteProcessMemory
PID:4948

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:2344

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Modify Existing Service

T1031

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

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

MD5
901551435000e0fdd9fe8e1fbcad8ec1

SHA1
32f0c052e96880aeb930d023e89c2b76dde716c0

SHA256
3649f08ce04d03624303cef3c3c466df9ecb052b4360113ba1a5044632ec20a8

SHA512
36312aaf8fcf9bcd14a63cae80d6f31d06cb39d925d6425cbf39b7a1b4efcf3486b2fbd40db5ec6b02efb14a903c249f3c824ad801ae287d6fc0280e5d0097f8

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

MD5
901551435000e0fdd9fe8e1fbcad8ec1

SHA1
32f0c052e96880aeb930d023e89c2b76dde716c0

SHA256
3649f08ce04d03624303cef3c3c466df9ecb052b4360113ba1a5044632ec20a8

SHA512
36312aaf8fcf9bcd14a63cae80d6f31d06cb39d925d6425cbf39b7a1b4efcf3486b2fbd40db5ec6b02efb14a903c249f3c824ad801ae287d6fc0280e5d0097f8

Download Submit
memory/732-132-0x00000000751A0000-0x0000000075751000-memory.dmp

Filesize
5.7MB

Download
memory/732-133-0x00000000751A0000-0x0000000075751000-memory.dmp

Filesize
5.7MB

Download
memory/732-137-0x00000000751A0000-0x0000000075751000-memory.dmp

Filesize
5.7MB

Download
memory/2344-139-0x0000000000000000-mapping.dmp

Download
memory/4948-134-0x0000000000000000-mapping.dmp

Download
memory/4948-138-0x00000000751A0000-0x0000000075751000-memory.dmp

Filesize
5.7MB

Download
memory/4948-140-0x00000000751A0000-0x0000000075751000-memory.dmp

Filesize
5.7MB

Download