njrat | 21faa14a2d83f66570059b5f4bbbf65112a8d39eed501e5c50dc8ca1c726a8da

Analysis

max time kernel
186s
max time network
184s
platform
windows10-2004_x64
resource
win10v2004-20220414-en
submitted
30-06-2022 17:30

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

21faa14a2d83f66570059b5f4bbbf65112a8d39eed501e5c50dc8ca1c726a8da.exe
Size

3.5MB
MD5

0a7e10c0a1303461f988b158f5be1a0f
SHA1

3a1a3abe6f4676a34b2ab00201ef09d39cbf9851
SHA256

21faa14a2d83f66570059b5f4bbbf65112a8d39eed501e5c50dc8ca1c726a8da
SHA512

da75b7be2267eeaf8c3ac6ea0fb23c89cf981f8ccb58d1b26f8db834c0d500571a6a5ee7cb00df1af740f291a5e0d63c9d2c0109b7ee536bb28479c385fa04b1

Score

10^/10

njrat pyhton evasion persistence trojan

Malware Config

Extracted

Family

njrat

Version

0.7d

Botnet

pyhton

FRANSESCOTI3LjAuFRANSESCOC4x:OTI5MQ==

Mutex

4b1517cc8c9c7814e25500e088df1ba7

Attributes

reg_key
4b1517cc8c9c7814e25500e088df1ba7
splitter
|'|'|

Signatures

njRAT/Bladabindi
Widely used RAT written in .NET.
trojan njrat
Executes dropped EXE 3 IoCs

Processes:

CDS.execrypted.exeserver.exe

pid process

4860 CDS.exe
2208 crypted.exe
1300 server.exe
Modifies Windows Firewall 1 TTPs 1 IoCs
evasion

Modify Existing Service
T1031

Processes:

netsh.exe

pid process

5032 netsh.exe

pid	process
4860	CDS.exe
2208	crypted.exe
1300	server.exe

pid	process
5032	netsh.exe

Checks computer location settings 2 TTPs 2 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

Processes:

crypted.exeCDS.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\Control Panel\International\Geo\Nation	crypted.exe
Key value queried	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\Control Panel\International\Geo\Nation	CDS.exe

Loads dropped DLL 1 IoCs

Processes:

CDS.exe

pid process

4860 CDS.exe

pid	process
4860	CDS.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

21faa14a2d83f66570059b5f4bbbf65112a8d39eed501e5c50dc8ca1c726a8da.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\Software\WOW6432Node\Microsoft\Windows\CurrentVersion\RunOnce	21faa14a2d83f66570059b5f4bbbf65112a8d39eed501e5c50dc8ca1c726a8da.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\RunOnce\wextract_cleanup0 = "rundll32.exe C:\\Windows\\system32\\advpack.dll,DelNodeRunDLL32 \"C:\\Users\\Admin\\AppData\\Local\\Temp\\IXP000.TMP\\\""	21faa14a2d83f66570059b5f4bbbf65112a8d39eed501e5c50dc8ca1c726a8da.exe

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

System Information Discovery
T1082
Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

CDS.exe

pid process

4860 CDS.exe
4860 CDS.exe
Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

server.exe

pid process

1300 server.exe

pid	process
4860	CDS.exe
4860	CDS.exe

pid	process
1300	server.exe

Suspicious use of AdjustPrivilegeToken 31 IoCs

Processes:

AUDIODG.EXEserver.exe

description	pid	process
Token: 33	4052	AUDIODG.EXE
Token: SeIncBasePriorityPrivilege	4052	AUDIODG.EXE
Token: SeDebugPrivilege	1300	server.exe
Token: 33	1300	server.exe
Token: SeIncBasePriorityPrivilege	1300	server.exe
Token: 33	1300	server.exe
Token: SeIncBasePriorityPrivilege	1300	server.exe
Token: 33	1300	server.exe
Token: SeIncBasePriorityPrivilege	1300	server.exe
Token: 33	1300	server.exe
Token: SeIncBasePriorityPrivilege	1300	server.exe
Token: 33	1300	server.exe
Token: SeIncBasePriorityPrivilege	1300	server.exe
Token: 33	1300	server.exe
Token: SeIncBasePriorityPrivilege	1300	server.exe
Token: 33	1300	server.exe
Token: SeIncBasePriorityPrivilege	1300	server.exe
Token: 33	1300	server.exe
Token: SeIncBasePriorityPrivilege	1300	server.exe
Token: 33	1300	server.exe
Token: SeIncBasePriorityPrivilege	1300	server.exe
Token: 33	1300	server.exe
Token: SeIncBasePriorityPrivilege	1300	server.exe
Token: 33	1300	server.exe
Token: SeIncBasePriorityPrivilege	1300	server.exe
Token: 33	1300	server.exe
Token: SeIncBasePriorityPrivilege	1300	server.exe
Token: 33	1300	server.exe
Token: SeIncBasePriorityPrivilege	1300	server.exe
Token: 33	1300	server.exe
Token: SeIncBasePriorityPrivilege	1300	server.exe

Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

CDS.exe

pid process

4860 CDS.exe
4860 CDS.exe

pid	process
4860	CDS.exe
4860	CDS.exe

Suspicious use of WriteProcessMemory 12 IoCs

Processes:

21faa14a2d83f66570059b5f4bbbf65112a8d39eed501e5c50dc8ca1c726a8da.exeCDS.execrypted.exeserver.exe

description	pid	process	target process
PID 5044 wrote to memory of 4860	5044	21faa14a2d83f66570059b5f4bbbf65112a8d39eed501e5c50dc8ca1c726a8da.exe	CDS.exe
PID 5044 wrote to memory of 4860	5044	21faa14a2d83f66570059b5f4bbbf65112a8d39eed501e5c50dc8ca1c726a8da.exe	CDS.exe
PID 5044 wrote to memory of 4860	5044	21faa14a2d83f66570059b5f4bbbf65112a8d39eed501e5c50dc8ca1c726a8da.exe	CDS.exe
PID 4860 wrote to memory of 2208	4860	CDS.exe	crypted.exe
PID 4860 wrote to memory of 2208	4860	CDS.exe	crypted.exe
PID 4860 wrote to memory of 2208	4860	CDS.exe	crypted.exe
PID 2208 wrote to memory of 1300	2208	crypted.exe	server.exe
PID 2208 wrote to memory of 1300	2208	crypted.exe	server.exe
PID 2208 wrote to memory of 1300	2208	crypted.exe	server.exe
PID 1300 wrote to memory of 5032	1300	server.exe	netsh.exe
PID 1300 wrote to memory of 5032	1300	server.exe	netsh.exe
PID 1300 wrote to memory of 5032	1300	server.exe	netsh.exe

C:\Users\Admin\AppData\Local\Temp\21faa14a2d83f66570059b5f4bbbf65112a8d39eed501e5c50dc8ca1c726a8da.exe
"C:\Users\Admin\AppData\Local\Temp\21faa14a2d83f66570059b5f4bbbf65112a8d39eed501e5c50dc8ca1c726a8da.exe"
1⤵
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:5044

C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\CDS.exe
C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\CDS.exe
2⤵
- Executes dropped EXE
- Checks computer location settings
- Loads dropped DLL
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4860

C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\crypted.exe
"C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\crypted.exe"
3⤵
- Executes dropped EXE
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:2208

C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\server.exe
"C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\server.exe"
4⤵
- Executes dropped EXE
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1300

C:\Windows\SysWOW64\netsh.exe
netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\server.exe" "server.exe" ENABLE
5⤵
- Modifies Windows Firewall
PID:5032

C:\Windows\system32\AUDIODG.EXE
C:\Windows\system32\AUDIODG.EXE 0x4ec 0x434
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:4052

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\IXP000.TMP\630_10.png
Filesize
2KB

MD5
340b294efc691d1b20c64175d565ebc7

SHA1
81cb9649bd1c9a62ae79e781818fc24d15c29ce7

SHA256
72566894059452101ea836bbff9ede5069141eeb52022ab55baa24e1666825c9

SHA512
1395a8e175c63a1a1ff459a9dac437156c74299272e020e7e078a087969251a8534f17244a529acbc1b6800a97d4c0abfa3c88f6fcb88423f56dfaae9b49fc3d

Download Submit
C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\BoCpARfKOyU.jpg
Filesize
96KB

MD5
c67248a43a8bb7f47726bcc2545bd78b

SHA1
5ff36678d0566ab1e39526e32eb2d10d17cb978a

SHA256
4dfbadd3c651e4484a43ee25c269813cd3abf0be4dcaad5db2cf79c4dbd2aaa2

SHA512
8cb2f4206b76b9c29cf3c3569d391a1788b5a5f8a0b8fce2a77a7cc5bbe9a3073ef3deed9c964a2745793c2d7c136a41113f355cd941039caeda90577ad67a96

Download Submit
C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\CDS.cdd
Filesize
13KB

MD5
3e7ecaeb51c2812d13b07ec852d74aaf

SHA1
e9bdab93596ffb0f7f8c65243c579180939acb26

SHA256
e7e942993864e8b18780ef10a415f7b93924c6378248c52f0c96895735222b96

SHA512
635cd5173b595f1905af9eeea65037601cf8496d519c506b6d082662d438c26a1bfe653eaf6edcb117ccf8767975c37ab0238ca4c77574e2706f9b238a15ad4d

Download Submit
C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\CDS.exe
Filesize
6.1MB

MD5
424bf196deaeb4ddcafb78e137fa560a

SHA1
007738e9486c904a3115daa6e8ba2ee692af58c8

SHA256
0963cef2f742a31b2604fe975f4471ae6a76641490fe60805db744fef9bdd5d2

SHA512
a9be6dd5b2ed84baea34e0f1b1e8f5388ce3662c5dcb6a80c2d175be95f9598312837420c07b52cdfaa9e94bcffd8c7a2b9db2b551dfac171bce4b92f466e797

Download Submit
C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\CDS.exe
Filesize
6.1MB

MD5
424bf196deaeb4ddcafb78e137fa560a

SHA1
007738e9486c904a3115daa6e8ba2ee692af58c8

SHA256
0963cef2f742a31b2604fe975f4471ae6a76641490fe60805db744fef9bdd5d2

SHA512
a9be6dd5b2ed84baea34e0f1b1e8f5388ce3662c5dcb6a80c2d175be95f9598312837420c07b52cdfaa9e94bcffd8c7a2b9db2b551dfac171bce4b92f466e797

Download Submit
C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\Server.exe
Filesize
93KB

MD5
bb468ccd7e41baef5b3a4d31a88065ad

SHA1
c857738574ee9655bf87c529eb889053bb39b5ee

SHA256
37b6265934e58869a78e5c8dd6d7ed7999215300709832dd3e3ebd7659db085b

SHA512
1ef53f4966da09ca834e3a2dc520db27a79290b69c52dce47c599a34a0846f08514bd2f83c000ee36e91c79bcfba381e7525cf714f086dbc16d9f95349be715f

Download Submit
C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\c.dat
Filesize
433KB

MD5
6aa2313fe4ed711bf253e5b2dd31c6e4

SHA1
70eab520a5bc8eb2c8585d6b9e93f52fb71f18e0

SHA256
b1b6d476d0598faa4493fa4c44a91b5a1781b151a90112ee5ecd7f28a2fbcce2

SHA512
a09b9431d0a724dd41a2cd93809d5ea5bf0cb0563ebc79b245ace3fa4d3174f23227a7962d6abc714521c08c129378222ed212f9e64d72d69f8eb704113dfcb6

Download Submit
C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\crypted.exe
Filesize
433KB

MD5
2556c36a91333983f48d7eecae4ca004

SHA1
6995fdfa37cc18b980fa09a3ddf4d8acb0088c84

SHA256
4c902d8159ee30f40c47d269f57ad92ece2dd20a3a24d7b918b9850e41fa9af2

SHA512
377b85e5aaaf1fe3cf12d225dd86ee5a454fa6ccc63b46412e7cffa7ae7f0151a26a481c319fd7715d6219aa0618cde29ef89e40f4496a3579934ce70897b825

Download Submit
C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\crypted.exe
Filesize
433KB

MD5
2556c36a91333983f48d7eecae4ca004

SHA1
6995fdfa37cc18b980fa09a3ddf4d8acb0088c84

SHA256
4c902d8159ee30f40c47d269f57ad92ece2dd20a3a24d7b918b9850e41fa9af2

SHA512
377b85e5aaaf1fe3cf12d225dd86ee5a454fa6ccc63b46412e7cffa7ae7f0151a26a481c319fd7715d6219aa0618cde29ef89e40f4496a3579934ce70897b825

Download Submit
C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\fs.settings
Filesize
5B

MD5
68934a3e9455fa72420237eb05902327

SHA1
7cb6efb98ba5972a9b5090dc2e517fe14d12cb04

SHA256
fcbcf165908dd18a9e49f7ff27810176db8e9f63b4352213741664245224f8aa

SHA512
719fa67eef49c4b2a2b83f0c62bddd88c106aaadb7e21ae057c8802b700e36f81fe3f144812d8b05d66dc663d908b25645e153262cf6d457aa34e684af9e328d

Download Submit
C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\lua5.1.dll
Filesize
322KB

MD5
c3256800dce47c14acc83ccca4c3e2ac

SHA1
9d126818c66991dbc3813a65eddb88bbcf77f30a

SHA256
f26f4f66022acc96d0319c09814ebeda60f4ab96b63b6262045dc786dc7c5866

SHA512
6865a98ad8a6bd02d1ba35a28b36b6306af393f5e9ad767cd6da027bb021f7399d629423f510c44436ac3e4603b6c606493edf8b14d21fabf3eab16d37bd0d25

Download Submit
C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\lua5.1.dll
Filesize
322KB

MD5
c3256800dce47c14acc83ccca4c3e2ac

SHA1
9d126818c66991dbc3813a65eddb88bbcf77f30a

SHA256
f26f4f66022acc96d0319c09814ebeda60f4ab96b63b6262045dc786dc7c5866

SHA512
6865a98ad8a6bd02d1ba35a28b36b6306af393f5e9ad767cd6da027bb021f7399d629423f510c44436ac3e4603b6c606493edf8b14d21fabf3eab16d37bd0d25

Download Submit
C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\server.exe
Filesize
93KB

MD5
bb468ccd7e41baef5b3a4d31a88065ad

SHA1
c857738574ee9655bf87c529eb889053bb39b5ee

SHA256
37b6265934e58869a78e5c8dd6d7ed7999215300709832dd3e3ebd7659db085b

SHA512
1ef53f4966da09ca834e3a2dc520db27a79290b69c52dce47c599a34a0846f08514bd2f83c000ee36e91c79bcfba381e7525cf714f086dbc16d9f95349be715f

Download Submit
memory/1300-142-0x0000000000000000-mapping.dmp

Download
memory/1300-145-0x0000000071B70000-0x0000000072121000-memory.dmp

Filesize
5.7MB

Download
memory/1300-147-0x0000000071B70000-0x0000000072121000-memory.dmp

Filesize
5.7MB

Download
memory/2208-139-0x0000000000000000-mapping.dmp

Download
memory/4860-130-0x0000000000000000-mapping.dmp

Download
memory/5032-146-0x0000000000000000-mapping.dmp

Download