njrat | abb90463c8ceed4773216ac8f49c35de06e6f25faa1575a38e410af97ef3aa64

General

Target

a911ec39ff21e50649b6317f55243799.exe
Size

31KB
MD5

a911ec39ff21e50649b6317f55243799
SHA1

28fed905673ae72831256d68e03f51704668197c
SHA256

abb90463c8ceed4773216ac8f49c35de06e6f25faa1575a38e410af97ef3aa64
SHA512

0bfa4d51707968643dc106ecda59f4c244c22d1bc441740b70e6c3e85b147e1ea40f19d0a63878e0524f09599d6b2a9475f085321dc5f9b0f43fed3917309242

Score

10^/10

njrat sys_bot evasion trojan

Malware Config

Extracted

Family

njrat

Version

0.7d

Botnet

Sys_bot

C2

4.tcp.ngrok.io:16142

Mutex

ca3804637eabfb47684db9e4afac4527

Attributes

reg_key
ca3804637eabfb47684db9e4afac4527
splitter
Y262SUCZ4UJJ

Signatures

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

Processes:

WindowsServices.exe

pid process

1080 WindowsServices.exe
Modifies Windows Firewall 1 TTPs
evasion

Modify Existing Service
T1031
Loads dropped DLL 1 IoCs

Processes:

a911ec39ff21e50649b6317f55243799.exe

pid process

1764 a911ec39ff21e50649b6317f55243799.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

pid	process
1080	WindowsServices.exe

pid	process
1764	a911ec39ff21e50649b6317f55243799.exe

Suspicious use of AdjustPrivilegeToken 31 IoCs

Processes:

WindowsServices.exe

description	pid	process
Token: SeDebugPrivilege	1080	WindowsServices.exe
Token: 33	1080	WindowsServices.exe
Token: SeIncBasePriorityPrivilege	1080	WindowsServices.exe
Token: 33	1080	WindowsServices.exe
Token: SeIncBasePriorityPrivilege	1080	WindowsServices.exe
Token: 33	1080	WindowsServices.exe
Token: SeIncBasePriorityPrivilege	1080	WindowsServices.exe
Token: 33	1080	WindowsServices.exe
Token: SeIncBasePriorityPrivilege	1080	WindowsServices.exe
Token: 33	1080	WindowsServices.exe
Token: SeIncBasePriorityPrivilege	1080	WindowsServices.exe
Token: 33	1080	WindowsServices.exe
Token: SeIncBasePriorityPrivilege	1080	WindowsServices.exe
Token: 33	1080	WindowsServices.exe
Token: SeIncBasePriorityPrivilege	1080	WindowsServices.exe
Token: 33	1080	WindowsServices.exe
Token: SeIncBasePriorityPrivilege	1080	WindowsServices.exe
Token: 33	1080	WindowsServices.exe
Token: SeIncBasePriorityPrivilege	1080	WindowsServices.exe
Token: 33	1080	WindowsServices.exe
Token: SeIncBasePriorityPrivilege	1080	WindowsServices.exe
Token: 33	1080	WindowsServices.exe
Token: SeIncBasePriorityPrivilege	1080	WindowsServices.exe
Token: 33	1080	WindowsServices.exe
Token: SeIncBasePriorityPrivilege	1080	WindowsServices.exe
Token: 33	1080	WindowsServices.exe
Token: SeIncBasePriorityPrivilege	1080	WindowsServices.exe
Token: 33	1080	WindowsServices.exe
Token: SeIncBasePriorityPrivilege	1080	WindowsServices.exe
Token: 33	1080	WindowsServices.exe
Token: SeIncBasePriorityPrivilege	1080	WindowsServices.exe

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

a911ec39ff21e50649b6317f55243799.exeWindowsServices.exe

description	pid	process	target process
PID 1764 wrote to memory of 1080	1764	a911ec39ff21e50649b6317f55243799.exe	WindowsServices.exe
PID 1764 wrote to memory of 1080	1764	a911ec39ff21e50649b6317f55243799.exe	WindowsServices.exe
PID 1764 wrote to memory of 1080	1764	a911ec39ff21e50649b6317f55243799.exe	WindowsServices.exe
PID 1764 wrote to memory of 1080	1764	a911ec39ff21e50649b6317f55243799.exe	WindowsServices.exe
PID 1080 wrote to memory of 1532	1080	WindowsServices.exe	netsh.exe
PID 1080 wrote to memory of 1532	1080	WindowsServices.exe	netsh.exe
PID 1080 wrote to memory of 1532	1080	WindowsServices.exe	netsh.exe
PID 1080 wrote to memory of 1532	1080	WindowsServices.exe	netsh.exe

C:\Users\Admin\AppData\Local\Temp\a911ec39ff21e50649b6317f55243799.exe
"C:\Users\Admin\AppData\Local\Temp\a911ec39ff21e50649b6317f55243799.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1764

C:\Users\Admin\AppData\Roaming\WindowsServices.exe
"C:\Users\Admin\AppData\Roaming\WindowsServices.exe"
2⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1080

C:\Windows\SysWOW64\netsh.exe
netsh firewall add allowedprogram "C:\Users\Admin\AppData\Roaming\WindowsServices.exe" "WindowsServices.exe" ENABLE
3⤵
PID:1532

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

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Roaming\WindowsServices.exe
MD5
a911ec39ff21e50649b6317f55243799

SHA1
28fed905673ae72831256d68e03f51704668197c

SHA256
abb90463c8ceed4773216ac8f49c35de06e6f25faa1575a38e410af97ef3aa64

SHA512
0bfa4d51707968643dc106ecda59f4c244c22d1bc441740b70e6c3e85b147e1ea40f19d0a63878e0524f09599d6b2a9475f085321dc5f9b0f43fed3917309242

Download Submit
C:\Users\Admin\AppData\Roaming\WindowsServices.exe
MD5
a911ec39ff21e50649b6317f55243799

SHA1
28fed905673ae72831256d68e03f51704668197c

SHA256
abb90463c8ceed4773216ac8f49c35de06e6f25faa1575a38e410af97ef3aa64

SHA512
0bfa4d51707968643dc106ecda59f4c244c22d1bc441740b70e6c3e85b147e1ea40f19d0a63878e0524f09599d6b2a9475f085321dc5f9b0f43fed3917309242

Download Submit
\Users\Admin\AppData\Roaming\WindowsServices.exe
MD5
a911ec39ff21e50649b6317f55243799

SHA1
28fed905673ae72831256d68e03f51704668197c

SHA256
abb90463c8ceed4773216ac8f49c35de06e6f25faa1575a38e410af97ef3aa64

SHA512
0bfa4d51707968643dc106ecda59f4c244c22d1bc441740b70e6c3e85b147e1ea40f19d0a63878e0524f09599d6b2a9475f085321dc5f9b0f43fed3917309242

Download Submit
memory/1080-58-0x0000000000000000-mapping.dmp

Download
memory/1080-62-0x0000000000AB0000-0x0000000000AB1000-memory.dmp

Filesize
4KB

Download
memory/1532-63-0x0000000000000000-mapping.dmp

Download
memory/1764-55-0x0000000075B71000-0x0000000075B73000-memory.dmp

Filesize
8KB

Download
memory/1764-56-0x0000000000C50000-0x0000000000C51000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing