njrat | 128216965909750c3c0d86a972015d4152b56cadfefec98612354fc034c8d437

General

Target

JaffaCakes118_6ce642a5f5b85d4413e5d5208ef63bb0.exe
Size

252KB
MD5

6ce642a5f5b85d4413e5d5208ef63bb0
SHA1

d5cb29d0ee8a79d0cac7fb7c3f931ff1ef9dfe8d
SHA256

128216965909750c3c0d86a972015d4152b56cadfefec98612354fc034c8d437
SHA512

0b5ecd7077b6c9e1c6e85fe13cf9ad1677ba03b0802e6c3cac9110bf47d5e30b861e4a22cb65740e7a6f8126ba9e4c909f985323b05744368627a4beb8226422
SSDEEP

3072:7x+QMgSXupDSbLiArQm7xf1f1V9oOqKPggd9pcTm5MRplHZs8pHgTvdj2k9Hc3/1:RTSeRSXBf1tHfH9N+Rr55ATvMk96kAD

Score

10^/10

njrat twetter discovery evasion persistence privilege_escalation trojan

Malware Config

Extracted

Family

njrat

Version

0.6.4

Botnet

twetter

C2

ezzbn.noip.me:1177

Mutex

5cd8f17f4086744065eb0992a09e05a2

Attributes

reg_key
5cd8f17f4086744065eb0992a09e05a2
splitter
|'|'|

Signatures

Njrat family
njrat
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
1044	netsh.exe

Checks computer location settings 2 TTPs 2 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-1-5-21-2437139445-1151884604-3026847218-1000\Control Panel\International\Geo\Nation	LocalyihyLmVTEK.exe
Key value queried	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\Control Panel\International\Geo\Nation	JaffaCakes118_6ce642a5f5b85d4413e5d5208ef63bb0.exe

Drops startup file 2 IoCs

description	ioc	Process
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\5cd8f17f4086744065eb0992a09e05a2.exe	Trojan.exe
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\5cd8f17f4086744065eb0992a09e05a2.exe	Trojan.exe

Executes dropped EXE 2 IoCs

pid	Process
4844	LocalyihyLmVTEK.exe
1892	Trojan.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\5cd8f17f4086744065eb0992a09e05a2 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\Trojan.exe\" .."	Trojan.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\5cd8f17f4086744065eb0992a09e05a2 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\Trojan.exe\" .."	Trojan.exe

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

System Information Discovery
T1082

Event Triggered Execution: Netsh Helper DLL 1 TTPs 3 IoCs

Netsh.exe (also referred to as Netshell) is a command-line scripting utility used to interact with the network configuration of a system.

persistence privilege_escalation

Netsh Helper DLL

T1546.007

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key queried	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key value enumerated	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe

System Location Discovery: System Language Discovery 1 TTPs 3 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Trojan.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	LocalyihyLmVTEK.exe

Suspicious behavior: EnumeratesProcesses 30 IoCs

pid	Process
1892	Trojan.exe
1892	Trojan.exe
1892	Trojan.exe
1892	Trojan.exe
1892	Trojan.exe
1892	Trojan.exe
1892	Trojan.exe
1892	Trojan.exe
1892	Trojan.exe
1892	Trojan.exe
1892	Trojan.exe
1892	Trojan.exe
1892	Trojan.exe
1892	Trojan.exe
1892	Trojan.exe
1892	Trojan.exe
1892	Trojan.exe
1892	Trojan.exe
1892	Trojan.exe
1892	Trojan.exe
1892	Trojan.exe
1892	Trojan.exe
1892	Trojan.exe
1892	Trojan.exe
1892	Trojan.exe
1892	Trojan.exe
1892	Trojan.exe
1892	Trojan.exe
1892	Trojan.exe
1892	Trojan.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1892	Trojan.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 384 wrote to memory of 4844	384	JaffaCakes118_6ce642a5f5b85d4413e5d5208ef63bb0.exe	83
PID 384 wrote to memory of 4844	384	JaffaCakes118_6ce642a5f5b85d4413e5d5208ef63bb0.exe	83
PID 384 wrote to memory of 4844	384	JaffaCakes118_6ce642a5f5b85d4413e5d5208ef63bb0.exe	83
PID 4844 wrote to memory of 1892	4844	LocalyihyLmVTEK.exe	84
PID 4844 wrote to memory of 1892	4844	LocalyihyLmVTEK.exe	84
PID 4844 wrote to memory of 1892	4844	LocalyihyLmVTEK.exe	84
PID 1892 wrote to memory of 1044	1892	Trojan.exe	85
PID 1892 wrote to memory of 1044	1892	Trojan.exe	85
PID 1892 wrote to memory of 1044	1892	Trojan.exe	85

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6ce642a5f5b85d4413e5d5208ef63bb0.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6ce642a5f5b85d4413e5d5208ef63bb0.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:384
- C:\Users\Admin\AppData\LocalyihyLmVTEK.exe
  "C:\Users\Admin\AppData\LocalyihyLmVTEK.exe"
  2⤵
  - Checks computer location settings
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:4844
- - C:\Users\Admin\AppData\Local\Temp\Trojan.exe
    "C:\Users\Admin\AppData\Local\Temp\Trojan.exe"
    3⤵
    - Drops startup file
    - Executes dropped EXE
    - Adds Run key to start application
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of WriteProcessMemory
    PID:1892
  - - C:\Windows\SysWOW64\netsh.exe
      netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\Trojan.exe" "Trojan.exe" ENABLE
      4⤵
      Modifies Windows Firewall
      Event Triggered Execution: Netsh Helper DLL
      System Location Discovery: System Language Discovery
      PID:1044

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Create or Modify System Process

1

T1543

Windows Service

1

T1543.003

Event Triggered Execution

1

T1546

Netsh Helper DLL

1

T1546.007

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Create or Modify System Process

1

T1543

Windows Service

1

T1543.003

Event Triggered Execution

1

T1546

Netsh Helper DLL

1

T1546.007

Defense Evasion

Impair Defenses

1

T1562

Disable or Modify System Firewall

Modify Registry

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\LocalyihyLmVTEK.exe

Filesize
154KB

MD5
40a5a0a1ccaeaca94c4dbb14d251acc5

SHA1
c31ff4b035641538898d248474e64960ef5d483b

SHA256
93f39aaf800b8f903546dceafedd8d507ed9dfbdcb83cf4a6fa4d507e99598ac

SHA512
ede24252673be34e0d3525e33d98ce82e93ded4f325eb3fbcfb652bcb7a536b3f1142331b40d8d2f594b570e9176176002248e7612dddd5fc50cfb5d1d008535

Download Submit
memory/384-17-0x00007FFB5C3A0000-0x00007FFB5CD41000-memory.dmp

Filesize
9.6MB

Download
memory/384-1-0x00007FFB5C3A0000-0x00007FFB5CD41000-memory.dmp

Filesize
9.6MB

Download
memory/384-3-0x00007FFB5C3A0000-0x00007FFB5CD41000-memory.dmp

Filesize
9.6MB

Download
memory/384-0-0x00007FFB5C655000-0x00007FFB5C656000-memory.dmp

Filesize
4KB

Download
memory/4844-18-0x0000000000D60000-0x0000000000D8E000-memory.dmp

Filesize
184KB

Download
memory/4844-16-0x00000000749CE000-0x00000000749CF000-memory.dmp

Filesize
4KB

Download
memory/4844-19-0x0000000005E10000-0x00000000063B4000-memory.dmp

Filesize
5.6MB

Download
memory/4844-20-0x0000000005750000-0x00000000057E2000-memory.dmp

Filesize
584KB

Download
memory/4844-21-0x0000000005900000-0x000000000599C000-memory.dmp

Filesize
624KB

Download
memory/4844-22-0x00000000749C0000-0x0000000075170000-memory.dmp

Filesize
7.7MB

Download
memory/4844-23-0x0000000005810000-0x000000000581A000-memory.dmp

Filesize
40KB

Download
memory/4844-24-0x0000000005BF0000-0x0000000005BFC000-memory.dmp

Filesize
48KB

Download
memory/4844-37-0x00000000749C0000-0x0000000075170000-memory.dmp

Filesize
7.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads