njrat | bf01bd6b7f7aa984e24d4e1ad2bb56a422d7bf1f609256d5094020d8ff887dc8

General

Target

bf01bd6b7f7aa984e24d4e1ad2bb56a422d7bf1f609256d5094020d8ff887dc8.exe
Size

37KB
MD5

d4ae130ffb524a176b0f218ec461a32f
SHA1

41fae0afe0d112bed49658f9bde1191e90990138
SHA256

bf01bd6b7f7aa984e24d4e1ad2bb56a422d7bf1f609256d5094020d8ff887dc8
SHA512

a0ca2ef49f25e713aa30d57ed3b2402bc399e2753c0942611613ff20ff96a44c38f641994d39b740bd5216201947f3a96459d52d8c1bc669bd0bbcd16ddeadfe

Score

10^/10

njrat kric evasion trojan

Malware Config

Extracted

Family

njrat

Version

im523

Botnet

KRIC

C2

192.168.1.130:5552

Mutex

cdffbb02e1916328f4aa20d5c638f039

Attributes

reg_key
cdffbb02e1916328f4aa20d5c638f039
splitter
|'|'|

Signatures

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

Processes:

Java.exe

pid process

4884 Java.exe
Modifies Windows Firewall 1 TTPs
evasion

Modify Existing Service
T1031

pid	process
4884	Java.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:

bf01bd6b7f7aa984e24d4e1ad2bb56a422d7bf1f609256d5094020d8ff887dc8.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\Control Panel\International\Geo\Nation	bf01bd6b7f7aa984e24d4e1ad2bb56a422d7bf1f609256d5094020d8ff887dc8.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 33 IoCs

Processes:

Java.exe

description	pid	process
Token: SeDebugPrivilege	4884	Java.exe
Token: 33	4884	Java.exe
Token: SeIncBasePriorityPrivilege	4884	Java.exe
Token: 33	4884	Java.exe
Token: SeIncBasePriorityPrivilege	4884	Java.exe
Token: 33	4884	Java.exe
Token: SeIncBasePriorityPrivilege	4884	Java.exe
Token: 33	4884	Java.exe
Token: SeIncBasePriorityPrivilege	4884	Java.exe
Token: 33	4884	Java.exe
Token: SeIncBasePriorityPrivilege	4884	Java.exe
Token: 33	4884	Java.exe
Token: SeIncBasePriorityPrivilege	4884	Java.exe
Token: 33	4884	Java.exe
Token: SeIncBasePriorityPrivilege	4884	Java.exe
Token: 33	4884	Java.exe
Token: SeIncBasePriorityPrivilege	4884	Java.exe
Token: 33	4884	Java.exe
Token: SeIncBasePriorityPrivilege	4884	Java.exe
Token: 33	4884	Java.exe
Token: SeIncBasePriorityPrivilege	4884	Java.exe
Token: 33	4884	Java.exe
Token: SeIncBasePriorityPrivilege	4884	Java.exe
Token: 33	4884	Java.exe
Token: SeIncBasePriorityPrivilege	4884	Java.exe
Token: 33	4884	Java.exe
Token: SeIncBasePriorityPrivilege	4884	Java.exe
Token: 33	4884	Java.exe
Token: SeIncBasePriorityPrivilege	4884	Java.exe
Token: 33	4884	Java.exe
Token: SeIncBasePriorityPrivilege	4884	Java.exe
Token: 33	4884	Java.exe
Token: SeIncBasePriorityPrivilege	4884	Java.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

bf01bd6b7f7aa984e24d4e1ad2bb56a422d7bf1f609256d5094020d8ff887dc8.exeJava.exe

description	pid	process	target process
PID 4232 wrote to memory of 4884	4232	bf01bd6b7f7aa984e24d4e1ad2bb56a422d7bf1f609256d5094020d8ff887dc8.exe	Java.exe
PID 4232 wrote to memory of 4884	4232	bf01bd6b7f7aa984e24d4e1ad2bb56a422d7bf1f609256d5094020d8ff887dc8.exe	Java.exe
PID 4232 wrote to memory of 4884	4232	bf01bd6b7f7aa984e24d4e1ad2bb56a422d7bf1f609256d5094020d8ff887dc8.exe	Java.exe
PID 4884 wrote to memory of 2896	4884	Java.exe	netsh.exe
PID 4884 wrote to memory of 2896	4884	Java.exe	netsh.exe
PID 4884 wrote to memory of 2896	4884	Java.exe	netsh.exe

C:\Users\Admin\AppData\Local\Temp\bf01bd6b7f7aa984e24d4e1ad2bb56a422d7bf1f609256d5094020d8ff887dc8.exe
"C:\Users\Admin\AppData\Local\Temp\bf01bd6b7f7aa984e24d4e1ad2bb56a422d7bf1f609256d5094020d8ff887dc8.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4232

C:\Users\Admin\AppData\Local\Temp\Java.exe
"C:\Users\Admin\AppData\Local\Temp\Java.exe"
2⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4884

C:\Windows\SysWOW64\netsh.exe
netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\Java.exe" "Java.exe" ENABLE
3⤵
PID:2896

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Modify Existing Service

1

T1031

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\Java.exe

Filesize
37KB

MD5
d4ae130ffb524a176b0f218ec461a32f

SHA1
41fae0afe0d112bed49658f9bde1191e90990138

SHA256
bf01bd6b7f7aa984e24d4e1ad2bb56a422d7bf1f609256d5094020d8ff887dc8

SHA512
a0ca2ef49f25e713aa30d57ed3b2402bc399e2753c0942611613ff20ff96a44c38f641994d39b740bd5216201947f3a96459d52d8c1bc669bd0bbcd16ddeadfe

Download Submit
C:\Users\Admin\AppData\Local\Temp\Java.exe

Filesize
37KB

MD5
d4ae130ffb524a176b0f218ec461a32f

SHA1
41fae0afe0d112bed49658f9bde1191e90990138

SHA256
bf01bd6b7f7aa984e24d4e1ad2bb56a422d7bf1f609256d5094020d8ff887dc8

SHA512
a0ca2ef49f25e713aa30d57ed3b2402bc399e2753c0942611613ff20ff96a44c38f641994d39b740bd5216201947f3a96459d52d8c1bc669bd0bbcd16ddeadfe

Download Submit
memory/2896-135-0x0000000000000000-mapping.dmp

Download
memory/4232-130-0x0000000074ED0000-0x0000000075481000-memory.dmp

Filesize
5.7MB

Download
memory/4884-131-0x0000000000000000-mapping.dmp

Download
memory/4884-134-0x0000000074ED0000-0x0000000075481000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads