njrat | e9dd44bc93c6600e1de03f26f733cc003836f6fb58bfee6a89783ffa5bae86e5

General

Target

e9dd44bc93c6600e1de03f26f733cc003836f6fb58bfee6a89783ffa5bae86e5.exe
Size

179KB
MD5

05f591b5044b5e8689879cbd885c920b
SHA1

dc77c9a8e58497f86df64d22e24b2fc9852de49c
SHA256

e9dd44bc93c6600e1de03f26f733cc003836f6fb58bfee6a89783ffa5bae86e5
SHA512

545855689ec71d304dd48ffbf4a3db509ff5afcccdf40480d1c3c2e9a44ac18ef1912ea1be7c111fbe30ff1b6a16bbce24749943ca2c70b88cbcf74e3698e3a5

Score

10^/10

njrat system persistence trojan

Malware Config

Extracted

Family

njrat

Version

Njrat 0.7 Golden By Hassan Amiri

Botnet

system

C2

bozuksaatiniz.duckdns.org:1604

Mutex

Windows Update

Attributes

reg_key
Windows Update
splitter
|Hassan|

Signatures

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

Processes:

systemupdate.exe

pid process

1544 systemupdate.exe

pid	process
1544	systemupdate.exe

Drops startup file 2 IoCs

Processes:

systemupdate.exe

description	ioc	process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Windows Update.exe	systemupdate.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Windows Update.exe	systemupdate.exe

Loads dropped DLL 1 IoCs

Processes:

e9dd44bc93c6600e1de03f26f733cc003836f6fb58bfee6a89783ffa5bae86e5.exe

pid process

908 e9dd44bc93c6600e1de03f26f733cc003836f6fb58bfee6a89783ffa5bae86e5.exe

pid	process
908	e9dd44bc93c6600e1de03f26f733cc003836f6fb58bfee6a89783ffa5bae86e5.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

systemupdate.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Windows\CurrentVersion\Run\Windows Update = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\systemupdate.exe\" .."	systemupdate.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\Windows Update = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\systemupdate.exe\" .."	systemupdate.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: GetForegroundWindowSpam 1 IoCs

Processes:

systemupdate.exe

pid process

1544 systemupdate.exe

pid	process
1544	systemupdate.exe

Suspicious use of AdjustPrivilegeToken 9 IoCs

Processes:

systemupdate.exe

description	pid	process
Token: SeDebugPrivilege	1544	systemupdate.exe
Token: 33	1544	systemupdate.exe
Token: SeIncBasePriorityPrivilege	1544	systemupdate.exe
Token: 33	1544	systemupdate.exe
Token: SeIncBasePriorityPrivilege	1544	systemupdate.exe
Token: 33	1544	systemupdate.exe
Token: SeIncBasePriorityPrivilege	1544	systemupdate.exe
Token: 33	1544	systemupdate.exe
Token: SeIncBasePriorityPrivilege	1544	systemupdate.exe

Suspicious use of WriteProcessMemory 7 IoCs

Processes:

e9dd44bc93c6600e1de03f26f733cc003836f6fb58bfee6a89783ffa5bae86e5.exe

description	pid	process	target process
PID 908 wrote to memory of 1544	908	e9dd44bc93c6600e1de03f26f733cc003836f6fb58bfee6a89783ffa5bae86e5.exe	systemupdate.exe
PID 908 wrote to memory of 1544	908	e9dd44bc93c6600e1de03f26f733cc003836f6fb58bfee6a89783ffa5bae86e5.exe	systemupdate.exe
PID 908 wrote to memory of 1544	908	e9dd44bc93c6600e1de03f26f733cc003836f6fb58bfee6a89783ffa5bae86e5.exe	systemupdate.exe
PID 908 wrote to memory of 1544	908	e9dd44bc93c6600e1de03f26f733cc003836f6fb58bfee6a89783ffa5bae86e5.exe	systemupdate.exe
PID 908 wrote to memory of 1544	908	e9dd44bc93c6600e1de03f26f733cc003836f6fb58bfee6a89783ffa5bae86e5.exe	systemupdate.exe
PID 908 wrote to memory of 1544	908	e9dd44bc93c6600e1de03f26f733cc003836f6fb58bfee6a89783ffa5bae86e5.exe	systemupdate.exe
PID 908 wrote to memory of 1544	908	e9dd44bc93c6600e1de03f26f733cc003836f6fb58bfee6a89783ffa5bae86e5.exe	systemupdate.exe

C:\Users\Admin\AppData\Local\Temp\e9dd44bc93c6600e1de03f26f733cc003836f6fb58bfee6a89783ffa5bae86e5.exe
"C:\Users\Admin\AppData\Local\Temp\e9dd44bc93c6600e1de03f26f733cc003836f6fb58bfee6a89783ffa5bae86e5.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:908

C:\Users\Admin\AppData\Local\Temp\systemupdate.exe
"C:\Users\Admin\AppData\Local\Temp\systemupdate.exe"
2⤵
- Executes dropped EXE
- Drops startup file
- Adds Run key to start application
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
PID:1544

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\systemupdate.exe
Filesize
179KB

MD5
05f591b5044b5e8689879cbd885c920b

SHA1
dc77c9a8e58497f86df64d22e24b2fc9852de49c

SHA256
e9dd44bc93c6600e1de03f26f733cc003836f6fb58bfee6a89783ffa5bae86e5

SHA512
545855689ec71d304dd48ffbf4a3db509ff5afcccdf40480d1c3c2e9a44ac18ef1912ea1be7c111fbe30ff1b6a16bbce24749943ca2c70b88cbcf74e3698e3a5

Download Submit
C:\Users\Admin\AppData\Local\Temp\systemupdate.exe
Filesize
179KB

MD5
05f591b5044b5e8689879cbd885c920b

SHA1
dc77c9a8e58497f86df64d22e24b2fc9852de49c

SHA256
e9dd44bc93c6600e1de03f26f733cc003836f6fb58bfee6a89783ffa5bae86e5

SHA512
545855689ec71d304dd48ffbf4a3db509ff5afcccdf40480d1c3c2e9a44ac18ef1912ea1be7c111fbe30ff1b6a16bbce24749943ca2c70b88cbcf74e3698e3a5

Download Submit
\Users\Admin\AppData\Local\Temp\systemupdate.exe
Filesize
179KB

MD5
05f591b5044b5e8689879cbd885c920b

SHA1
dc77c9a8e58497f86df64d22e24b2fc9852de49c

SHA256
e9dd44bc93c6600e1de03f26f733cc003836f6fb58bfee6a89783ffa5bae86e5

SHA512
545855689ec71d304dd48ffbf4a3db509ff5afcccdf40480d1c3c2e9a44ac18ef1912ea1be7c111fbe30ff1b6a16bbce24749943ca2c70b88cbcf74e3698e3a5

Download Submit
memory/908-54-0x0000000000AD0000-0x0000000000B04000-memory.dmp

Filesize
208KB

Download
memory/908-55-0x0000000000230000-0x0000000000242000-memory.dmp

Filesize
72KB

Download
memory/908-56-0x0000000074E91000-0x0000000074E93000-memory.dmp

Filesize
8KB

Download
memory/1544-58-0x0000000000000000-mapping.dmp

Download
memory/1544-61-0x0000000001370000-0x00000000013A4000-memory.dmp

Filesize
208KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads