njrat | 4cd6ef9820ea5b23301424ea686104cee045173059a385062833e5b939416f91

Analysis

max time kernel
149s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20240508-en
resource tags

arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
submitted
14/06/2024, 02:52

Sharing

Copy URL Twitter E-mail

Report Analysis Logs

General

Target
a7c44819ab0540a1227173dbe437f8cb_JaffaCakes118.exe
Size 75KB
Sample240614-dc5ezssfkb
SHA256 4cd6ef9820ea5b23301424ea686104cee045173059a385062833e5b939416f91
MD5 a7c44819ab0540a1227173dbe437f8cb
SHA1 30669334b50f5d10004642ab67e837e1f85fa78f
SHA512 07644d3bfef051e7475cf7bbd71422ee72043983e8937df2e2b634c7a92695b06203a529569dc17bf6128258d867ce62a6d535f939fd0e93b84f1b5a7be033e5
SSDEEP 1536:QsLHxmZ4tU/zIIM0rJHvkdYcklynblAZIlTbRXiYYY0nnf:QsLHwZD8IvJH3cQqblAZYXiv
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

njrat evasion trojan

Malware Config

Signatures

njRAT/Bladabindi
Widely used RAT written in .NET.
trojan njrat

Modifies Windows Firewall 2 TTPs 1 IoCs

evasion

Windows Service

T1543.003

Disable or Modify System Firewall

T1562.004

pid	Process
2528	netsh.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

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-2804150937-2146708401-419095071-1000\Control Panel\International\Geo\Nation	a7c44819ab0540a1227173dbe437f8cb_JaffaCakes118.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\e1b9da69f2abff12ad404024ef7ee867.exe	Server.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\e1b9da69f2abff12ad404024ef7ee867.exe	Server.exe

Executes dropped EXE 1 IoCs

pid	Process
1364	Server.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Suspicious use of AdjustPrivilegeToken 35 IoCs

description	pid	Process
Token: SeDebugPrivilege	1364	Server.exe
Token: 33	1364	Server.exe
Token: SeIncBasePriorityPrivilege	1364	Server.exe
Token: 33	1364	Server.exe
Token: SeIncBasePriorityPrivilege	1364	Server.exe
Token: 33	1364	Server.exe
Token: SeIncBasePriorityPrivilege	1364	Server.exe
Token: 33	1364	Server.exe
Token: SeIncBasePriorityPrivilege	1364	Server.exe
Token: 33	1364	Server.exe
Token: SeIncBasePriorityPrivilege	1364	Server.exe
Token: 33	1364	Server.exe
Token: SeIncBasePriorityPrivilege	1364	Server.exe
Token: 33	1364	Server.exe
Token: SeIncBasePriorityPrivilege	1364	Server.exe
Token: 33	1364	Server.exe
Token: SeIncBasePriorityPrivilege	1364	Server.exe
Token: 33	1364	Server.exe
Token: SeIncBasePriorityPrivilege	1364	Server.exe
Token: 33	1364	Server.exe
Token: SeIncBasePriorityPrivilege	1364	Server.exe
Token: 33	1364	Server.exe
Token: SeIncBasePriorityPrivilege	1364	Server.exe
Token: 33	1364	Server.exe
Token: SeIncBasePriorityPrivilege	1364	Server.exe
Token: 33	1364	Server.exe
Token: SeIncBasePriorityPrivilege	1364	Server.exe
Token: 33	1364	Server.exe
Token: SeIncBasePriorityPrivilege	1364	Server.exe
Token: 33	1364	Server.exe
Token: SeIncBasePriorityPrivilege	1364	Server.exe
Token: 33	1364	Server.exe
Token: SeIncBasePriorityPrivilege	1364	Server.exe
Token: 33	1364	Server.exe
Token: SeIncBasePriorityPrivilege	1364	Server.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 1792 wrote to memory of 1364	1792	a7c44819ab0540a1227173dbe437f8cb_JaffaCakes118.exe	84
PID 1792 wrote to memory of 1364	1792	a7c44819ab0540a1227173dbe437f8cb_JaffaCakes118.exe	84
PID 1792 wrote to memory of 1364	1792	a7c44819ab0540a1227173dbe437f8cb_JaffaCakes118.exe	84
PID 1364 wrote to memory of 2528	1364	Server.exe	85
PID 1364 wrote to memory of 2528	1364	Server.exe	85
PID 1364 wrote to memory of 2528	1364	Server.exe	85

C:\Users\Admin\AppData\Local\Temp\a7c44819ab0540a1227173dbe437f8cb_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\a7c44819ab0540a1227173dbe437f8cb_JaffaCakes118.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:1792
- C:\Users\Admin\AppData\Local\Temp\Server.exe
  "C:\Users\Admin\AppData\Local\Temp\Server.exe"
  2⤵
  - Drops startup file
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:1364
- - C:\Windows\SysWOW64\netsh.exe
    netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\Server.exe" "Server.exe" ENABLE
    3⤵
    - Modifies Windows Firewall
    PID:2528

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Create or Modify System Process

T1543

Windows Service

T1543.003

Privilege Escalation

Create or Modify System Process

T1543

Windows Service

T1543.003

Defense Evasion

Impair Defenses

T1562

Disable or Modify System Firewall

T1562.004

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

Server.exe

Path C:\Users\Admin\AppData\Local\Temp\Server.exe
Size 75KB
SHA256 4cd6ef9820ea5b23301424ea686104cee045173059a385062833e5b939416f91
MD5 a7c44819ab0540a1227173dbe437f8cb
SHA1 30669334b50f5d10004642ab67e837e1f85fa78f
SHA512 07644d3bfef051e7475cf7bbd71422ee72043983e8937df2e2b634c7a92695b06203a529569dc17bf6128258d867ce62a6d535f939fd0e93b84f1b5a7be033e5
SSDEEP 1536:QsLHxmZ4tU/zIIM0rJHvkdYcklynblAZIlTbRXiYYY0nnf:QsLHwZD8IvJH3cQqblAZYXiv
MD5 SHA1 SHA512 SSDEEP

Submit Download

memory/1364-12-0x0000000074D30000-0x00000000752E1000-memory.dmp

Download

memory/1364-15-0x0000000074D30000-0x00000000752E1000-memory.dmp

Download

memory/1364-14-0x0000000074D30000-0x00000000752E1000-memory.dmp

Download

memory/1364-17-0x0000000074D30000-0x00000000752E1000-memory.dmp

Download

memory/1364-18-0x0000000074D30000-0x00000000752E1000-memory.dmp

Download

memory/1364-19-0x0000000074D30000-0x00000000752E1000-memory.dmp

Download

memory/1792-0-0x0000000074D32000-0x0000000074D33000-memory.dmp

Download

memory/1792-1-0x0000000074D30000-0x00000000752E1000-memory.dmp

Download

memory/1792-2-0x0000000074D30000-0x00000000752E1000-memory.dmp

Download

memory/1792-13-0x0000000074D30000-0x00000000752E1000-memory.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads