njrat | b4d3e2a30b09d1f2f33476f5234bd7a045973ddbc41a72046c30bbdd19d5f1ef

General

Target

B4D3E2A30B09D1F2F33476F5234BD7A045973DDBC41A7.exe
Size

145KB
MD5

0598d93bdfe246d1ec2adb829fef6ef3
SHA1

09c7d8f4ad2172147da6f597b7160ee42bbad637
SHA256

b4d3e2a30b09d1f2f33476f5234bd7a045973ddbc41a72046c30bbdd19d5f1ef
SHA512

2ec32707470314c823f1f07e10f85662cbc0abd667016ff752d16ffca85b68aa65dccf45d56053058adbea38fed6533afaf7e261ee1fc67b27e16181988e2406

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:

Javaupdate.exe

pid process

4720 Javaupdate.exe
Modifies Windows Firewall 1 TTPs
evasion

Modify Existing Service
T1031

pid	process
4720	Javaupdate.exe

Drops startup file 2 IoCs

Processes:

Javaupdate.exe

description	ioc	process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\1b45b8ae1bd50e99100e5d24116274af.exe	Javaupdate.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\1b45b8ae1bd50e99100e5d24116274af.exe	Javaupdate.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:

Javaupdate.exe

description	pid	process
Token: SeDebugPrivilege	4720	Javaupdate.exe
Token: 33	4720	Javaupdate.exe
Token: SeIncBasePriorityPrivilege	4720	Javaupdate.exe
Token: 33	4720	Javaupdate.exe
Token: SeIncBasePriorityPrivilege	4720	Javaupdate.exe
Token: 33	4720	Javaupdate.exe
Token: SeIncBasePriorityPrivilege	4720	Javaupdate.exe
Token: 33	4720	Javaupdate.exe
Token: SeIncBasePriorityPrivilege	4720	Javaupdate.exe
Token: 33	4720	Javaupdate.exe
Token: SeIncBasePriorityPrivilege	4720	Javaupdate.exe
Token: 33	4720	Javaupdate.exe
Token: SeIncBasePriorityPrivilege	4720	Javaupdate.exe
Token: 33	4720	Javaupdate.exe
Token: SeIncBasePriorityPrivilege	4720	Javaupdate.exe
Token: 33	4720	Javaupdate.exe
Token: SeIncBasePriorityPrivilege	4720	Javaupdate.exe
Token: 33	4720	Javaupdate.exe
Token: SeIncBasePriorityPrivilege	4720	Javaupdate.exe
Token: 33	4720	Javaupdate.exe
Token: SeIncBasePriorityPrivilege	4720	Javaupdate.exe
Token: 33	4720	Javaupdate.exe
Token: SeIncBasePriorityPrivilege	4720	Javaupdate.exe
Token: 33	4720	Javaupdate.exe
Token: SeIncBasePriorityPrivilege	4720	Javaupdate.exe
Token: 33	4720	Javaupdate.exe
Token: SeIncBasePriorityPrivilege	4720	Javaupdate.exe
Token: 33	4720	Javaupdate.exe
Token: SeIncBasePriorityPrivilege	4720	Javaupdate.exe
Token: 33	4720	Javaupdate.exe
Token: SeIncBasePriorityPrivilege	4720	Javaupdate.exe
Token: 33	4720	Javaupdate.exe
Token: SeIncBasePriorityPrivilege	4720	Javaupdate.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

B4D3E2A30B09D1F2F33476F5234BD7A045973DDBC41A7.exeJavaupdate.exe

description	pid	process	target process
PID 4652 wrote to memory of 4720	4652	B4D3E2A30B09D1F2F33476F5234BD7A045973DDBC41A7.exe	Javaupdate.exe
PID 4652 wrote to memory of 4720	4652	B4D3E2A30B09D1F2F33476F5234BD7A045973DDBC41A7.exe	Javaupdate.exe
PID 4652 wrote to memory of 4720	4652	B4D3E2A30B09D1F2F33476F5234BD7A045973DDBC41A7.exe	Javaupdate.exe
PID 4720 wrote to memory of 4808	4720	Javaupdate.exe	netsh.exe
PID 4720 wrote to memory of 4808	4720	Javaupdate.exe	netsh.exe
PID 4720 wrote to memory of 4808	4720	Javaupdate.exe	netsh.exe

C:\Users\Admin\AppData\Local\Temp\B4D3E2A30B09D1F2F33476F5234BD7A045973DDBC41A7.exe
"C:\Users\Admin\AppData\Local\Temp\B4D3E2A30B09D1F2F33476F5234BD7A045973DDBC41A7.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:4652

C:\Users\Admin\AppData\Roaming\Javaupdate.exe
"C:\Users\Admin\AppData\Roaming\Javaupdate.exe"
2⤵
- Executes dropped EXE
- Drops startup file
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4720

C:\Windows\SysWOW64\netsh.exe
netsh firewall add allowedprogram "C:\Users\Admin\AppData\Roaming\Javaupdate.exe" "Javaupdate.exe" ENABLE
3⤵
PID:4808

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Modify Existing Service

1

T1031

Privilege Escalation

Defense Evasion

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\Roaming\Javaupdate.exe
MD5
0598d93bdfe246d1ec2adb829fef6ef3

SHA1
09c7d8f4ad2172147da6f597b7160ee42bbad637

SHA256
b4d3e2a30b09d1f2f33476f5234bd7a045973ddbc41a72046c30bbdd19d5f1ef

SHA512
2ec32707470314c823f1f07e10f85662cbc0abd667016ff752d16ffca85b68aa65dccf45d56053058adbea38fed6533afaf7e261ee1fc67b27e16181988e2406

Download Submit
C:\Users\Admin\AppData\Roaming\Javaupdate.exe
MD5
0598d93bdfe246d1ec2adb829fef6ef3

SHA1
09c7d8f4ad2172147da6f597b7160ee42bbad637

SHA256
b4d3e2a30b09d1f2f33476f5234bd7a045973ddbc41a72046c30bbdd19d5f1ef

SHA512
2ec32707470314c823f1f07e10f85662cbc0abd667016ff752d16ffca85b68aa65dccf45d56053058adbea38fed6533afaf7e261ee1fc67b27e16181988e2406

Download Submit
memory/4652-115-0x00000000031D0000-0x00000000031D1000-memory.dmp

Filesize
4KB

Download
memory/4652-116-0x00000000031D3000-0x00000000031D5000-memory.dmp

Filesize
8KB

Download
memory/4720-117-0x0000000000000000-mapping.dmp

Download
memory/4720-121-0x0000000000EC0000-0x000000000100A000-memory.dmp

Filesize
1.3MB

Download
memory/4720-120-0x0000000000EC0000-0x000000000100A000-memory.dmp

Filesize
1.3MB

Download
memory/4808-122-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads