njrat | 5ed4fa4e971369c1f624a68caf0a4ad0619e2a0fe5ca5708a98d2cd9a5adde0a

General

Target

5ed4fa4e971369c1f624a68caf0a4ad0619e2a0fe5ca5708a98d2cd9a5adde0a.exe
Size

29KB
MD5

55cf60a4842ef01b402ff44db6621bcb
SHA1

eaebe99a8f9a78a2b147d5be068372d2ae564161
SHA256

5ed4fa4e971369c1f624a68caf0a4ad0619e2a0fe5ca5708a98d2cd9a5adde0a
SHA512

55afc5cd8b64eccd0eeaed96a1238955b1c82aef0ed992bf56ab77b7e614f8bbc23fffbb45f4cd0cfc6c29bee09ff2a4b94ff61e5faa7be8f4d11e0b33c359d3
SSDEEP

384:LFpQjtl7jBnoKoK3JX15nHK4GumqDAEReIlGBsbh0w4wlAokw9OhgOL1vYRGOZz5:Li7hoKoGJFNK4Aq1RehBKh0p29SgRS6

Score

10^/10

njrat system evasion persistence trojan

Malware Config

Extracted

Family

njrat

Version

0.6.4

Botnet

system

C2

127.0.0.1:1177

Mutex

12ce4e06a81e8d54fd01d9b762f1b1bb

Attributes

reg_key
12ce4e06a81e8d54fd01d9b762f1b1bb
splitter
|'|'|

Signatures

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

Processes:

system.exe

pid process

932 system.exe
Modifies Windows Firewall 1 TTPs 1 IoCs
evasion

Modify Existing Service
T1031

Processes:

netsh.exe

pid process

1128 netsh.exe
Loads dropped DLL 1 IoCs

Processes:

5ed4fa4e971369c1f624a68caf0a4ad0619e2a0fe5ca5708a98d2cd9a5adde0a.exe

pid process

2020 5ed4fa4e971369c1f624a68caf0a4ad0619e2a0fe5ca5708a98d2cd9a5adde0a.exe

pid	process
1128	netsh.exe

pid	process
2020	5ed4fa4e971369c1f624a68caf0a4ad0619e2a0fe5ca5708a98d2cd9a5adde0a.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

system.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\12ce4e06a81e8d54fd01d9b762f1b1bb = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\system.exe\" .."	system.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\12ce4e06a81e8d54fd01d9b762f1b1bb = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\system.exe\" .."	system.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 18 IoCs

Processes:

system.exe

pid	process
932	system.exe
932	system.exe
932	system.exe
932	system.exe
932	system.exe
932	system.exe
932	system.exe
932	system.exe
932	system.exe
932	system.exe
932	system.exe
932	system.exe
932	system.exe
932	system.exe
932	system.exe
932	system.exe
932	system.exe
932	system.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

system.exe

description pid process

Token: SeDebugPrivilege 932 system.exe

description	pid	process
Token: SeDebugPrivilege	932	system.exe

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

5ed4fa4e971369c1f624a68caf0a4ad0619e2a0fe5ca5708a98d2cd9a5adde0a.exesystem.exe

description	pid	process	target process
PID 2020 wrote to memory of 932	2020	5ed4fa4e971369c1f624a68caf0a4ad0619e2a0fe5ca5708a98d2cd9a5adde0a.exe	system.exe
PID 2020 wrote to memory of 932	2020	5ed4fa4e971369c1f624a68caf0a4ad0619e2a0fe5ca5708a98d2cd9a5adde0a.exe	system.exe
PID 2020 wrote to memory of 932	2020	5ed4fa4e971369c1f624a68caf0a4ad0619e2a0fe5ca5708a98d2cd9a5adde0a.exe	system.exe
PID 2020 wrote to memory of 932	2020	5ed4fa4e971369c1f624a68caf0a4ad0619e2a0fe5ca5708a98d2cd9a5adde0a.exe	system.exe
PID 932 wrote to memory of 1128	932	system.exe	netsh.exe
PID 932 wrote to memory of 1128	932	system.exe	netsh.exe
PID 932 wrote to memory of 1128	932	system.exe	netsh.exe
PID 932 wrote to memory of 1128	932	system.exe	netsh.exe

C:\Users\Admin\AppData\Local\Temp\5ed4fa4e971369c1f624a68caf0a4ad0619e2a0fe5ca5708a98d2cd9a5adde0a.exe
"C:\Users\Admin\AppData\Local\Temp\5ed4fa4e971369c1f624a68caf0a4ad0619e2a0fe5ca5708a98d2cd9a5adde0a.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2020

C:\Users\Admin\AppData\Local\Temp\system.exe
"C:\Users\Admin\AppData\Local\Temp\system.exe"
2⤵
- Executes dropped EXE
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:932

C:\Windows\SysWOW64\netsh.exe
netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\system.exe" "system.exe" ENABLE
3⤵
- Modifies Windows Firewall
PID:1128

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Modify Existing Service

1

T1031

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\system.exe
Filesize
29KB

MD5
55cf60a4842ef01b402ff44db6621bcb

SHA1
eaebe99a8f9a78a2b147d5be068372d2ae564161

SHA256
5ed4fa4e971369c1f624a68caf0a4ad0619e2a0fe5ca5708a98d2cd9a5adde0a

SHA512
55afc5cd8b64eccd0eeaed96a1238955b1c82aef0ed992bf56ab77b7e614f8bbc23fffbb45f4cd0cfc6c29bee09ff2a4b94ff61e5faa7be8f4d11e0b33c359d3

Download Submit
C:\Users\Admin\AppData\Local\Temp\system.exe
Filesize
29KB

MD5
55cf60a4842ef01b402ff44db6621bcb

SHA1
eaebe99a8f9a78a2b147d5be068372d2ae564161

SHA256
5ed4fa4e971369c1f624a68caf0a4ad0619e2a0fe5ca5708a98d2cd9a5adde0a

SHA512
55afc5cd8b64eccd0eeaed96a1238955b1c82aef0ed992bf56ab77b7e614f8bbc23fffbb45f4cd0cfc6c29bee09ff2a4b94ff61e5faa7be8f4d11e0b33c359d3

Download Submit
\Users\Admin\AppData\Local\Temp\system.exe
Filesize
29KB

MD5
55cf60a4842ef01b402ff44db6621bcb

SHA1
eaebe99a8f9a78a2b147d5be068372d2ae564161

SHA256
5ed4fa4e971369c1f624a68caf0a4ad0619e2a0fe5ca5708a98d2cd9a5adde0a

SHA512
55afc5cd8b64eccd0eeaed96a1238955b1c82aef0ed992bf56ab77b7e614f8bbc23fffbb45f4cd0cfc6c29bee09ff2a4b94ff61e5faa7be8f4d11e0b33c359d3

Download Submit
memory/932-56-0x0000000000000000-mapping.dmp

Download
memory/932-62-0x0000000074C80000-0x000000007522B000-memory.dmp

Filesize
5.7MB

Download
memory/932-64-0x0000000074C80000-0x000000007522B000-memory.dmp

Filesize
5.7MB

Download
memory/1128-60-0x0000000000000000-mapping.dmp

Download
memory/2020-54-0x00000000756B1000-0x00000000756B3000-memory.dmp

Filesize
8KB

Download
memory/2020-61-0x0000000074C80000-0x000000007522B000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads