njrat | adc330db21deb991339f4448ba8e2a7db493ab866a9929958507e339f23b8f84

Analysis

max time kernel
150s
max time network
153s
platform
windows10-2004_x64
resource
win10v2004-20220812-en
resource tags

arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
submitted
23-11-2022 20:45

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General

Target

adc330db21deb991339f4448ba8e2a7db493ab866a9929958507e339f23b8f84.exe
Size

280KB
MD5

389051ca33b4a3a4a9b11658cad9a2fb
SHA1

07700bc298e0137be832ab74b0790922969a1e85
SHA256

adc330db21deb991339f4448ba8e2a7db493ab866a9929958507e339f23b8f84
SHA512

f56b84c191f03fdf31759888a9538dca0bdb0ef40dd34ce9d1be930eba2c814ae6fde60ae5bb10af19740a1466ad2caaae4bdb744157cb58565b16b8a9d99852
SSDEEP

6144:TTZU1YEcpDmP1YJEr8YMfGNSl4t0xkQ8GU8:vLANYeA9GNq4t4kQ4

Score

10^/10

njrat evasion trojan

Malware Config

Signatures

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

Processes:

server.exe

pid process

4976 server.exe
Modifies Windows Firewall 1 TTPs 1 IoCs
evasion

Modify Existing Service
T1031

Processes:

netsh.exe

pid process

5068 netsh.exe

pid	process
4976	server.exe

pid	process
5068	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:

adc330db21deb991339f4448ba8e2a7db493ab866a9929958507e339f23b8f84.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Control Panel\International\Geo\Nation	adc330db21deb991339f4448ba8e2a7db493ab866a9929958507e339f23b8f84.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 29 IoCs

Processes:

server.exe

description	pid	process
Token: SeDebugPrivilege	4976	server.exe
Token: 33	4976	server.exe
Token: SeIncBasePriorityPrivilege	4976	server.exe
Token: 33	4976	server.exe
Token: SeIncBasePriorityPrivilege	4976	server.exe
Token: 33	4976	server.exe
Token: SeIncBasePriorityPrivilege	4976	server.exe
Token: 33	4976	server.exe
Token: SeIncBasePriorityPrivilege	4976	server.exe
Token: 33	4976	server.exe
Token: SeIncBasePriorityPrivilege	4976	server.exe
Token: 33	4976	server.exe
Token: SeIncBasePriorityPrivilege	4976	server.exe
Token: 33	4976	server.exe
Token: SeIncBasePriorityPrivilege	4976	server.exe
Token: 33	4976	server.exe
Token: SeIncBasePriorityPrivilege	4976	server.exe
Token: 33	4976	server.exe
Token: SeIncBasePriorityPrivilege	4976	server.exe
Token: 33	4976	server.exe
Token: SeIncBasePriorityPrivilege	4976	server.exe
Token: 33	4976	server.exe
Token: SeIncBasePriorityPrivilege	4976	server.exe
Token: 33	4976	server.exe
Token: SeIncBasePriorityPrivilege	4976	server.exe
Token: 33	4976	server.exe
Token: SeIncBasePriorityPrivilege	4976	server.exe
Token: 33	4976	server.exe
Token: SeIncBasePriorityPrivilege	4976	server.exe

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

adc330db21deb991339f4448ba8e2a7db493ab866a9929958507e339f23b8f84.exeserver.exe

description	pid	process	target process
PID 2008 wrote to memory of 4976	2008	adc330db21deb991339f4448ba8e2a7db493ab866a9929958507e339f23b8f84.exe	server.exe
PID 2008 wrote to memory of 4976	2008	adc330db21deb991339f4448ba8e2a7db493ab866a9929958507e339f23b8f84.exe	server.exe
PID 4976 wrote to memory of 5068	4976	server.exe	netsh.exe
PID 4976 wrote to memory of 5068	4976	server.exe	netsh.exe

C:\Users\Admin\AppData\Local\Temp\adc330db21deb991339f4448ba8e2a7db493ab866a9929958507e339f23b8f84.exe
"C:\Users\Admin\AppData\Local\Temp\adc330db21deb991339f4448ba8e2a7db493ab866a9929958507e339f23b8f84.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:2008

C:\Users\Admin\AppData\Local\Temp\server.exe
"C:\Users\Admin\AppData\Local\Temp\server.exe"
2⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4976

C:\Windows\SYSTEM32\netsh.exe
netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\server.exe" "server.exe" ENABLE
3⤵
- Modifies Windows Firewall
PID:5068

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Modify Existing Service

T1031

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\server.exe
Filesize
280KB

MD5
389051ca33b4a3a4a9b11658cad9a2fb

SHA1
07700bc298e0137be832ab74b0790922969a1e85

SHA256
adc330db21deb991339f4448ba8e2a7db493ab866a9929958507e339f23b8f84

SHA512
f56b84c191f03fdf31759888a9538dca0bdb0ef40dd34ce9d1be930eba2c814ae6fde60ae5bb10af19740a1466ad2caaae4bdb744157cb58565b16b8a9d99852

Download Submit
C:\Users\Admin\AppData\Local\Temp\server.exe
Filesize
280KB

MD5
389051ca33b4a3a4a9b11658cad9a2fb

SHA1
07700bc298e0137be832ab74b0790922969a1e85

SHA256
adc330db21deb991339f4448ba8e2a7db493ab866a9929958507e339f23b8f84

SHA512
f56b84c191f03fdf31759888a9538dca0bdb0ef40dd34ce9d1be930eba2c814ae6fde60ae5bb10af19740a1466ad2caaae4bdb744157cb58565b16b8a9d99852

Download Submit
memory/2008-132-0x00007FF8322B0000-0x00007FF832CE6000-memory.dmp

Filesize
10.2MB

Download
memory/4976-133-0x0000000000000000-mapping.dmp

Download
memory/4976-136-0x00007FF8322B0000-0x00007FF832CE6000-memory.dmp

Filesize
10.2MB

Download
memory/5068-137-0x0000000000000000-mapping.dmp

Download