njrat | 6dd1214944c59f14b169821e77f312c22f08d292f4fc6de29280a884ad753b4b

General

Target

JaffaCakes118_77efd9421dd7faf39488107714d8f030.exe
Size

104KB
MD5

77efd9421dd7faf39488107714d8f030
SHA1

cb363e8c037e7f1b759383539f4314836648b368
SHA256

6dd1214944c59f14b169821e77f312c22f08d292f4fc6de29280a884ad753b4b
SHA512

9c378c330732e9cb0af433e9ea4afff4618cf4005952d7a8727a8f306d4730b703efc8af087ef752b38e273966a35faca2b34a6d541eb4b452343752879714e4
SSDEEP

1536:8uUgTct6IASo6M9ZwYjiBqbaInnGfIshKRWubSl:9dTfSo6MkWbaInqIs80h

Score

10^/10

njrat hacked discovery evasion persistence privilege_escalation trojan

Malware Config

Extracted

Family

njrat

Version

0.7d

Botnet

HacKed

C2

medohack.no-ip.biz:1117

Mutex

a03dbd339a1060aec9cf0c61af677399

Attributes

reg_key
a03dbd339a1060aec9cf0c61af677399
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
2724	netsh.exe

.NET Reactor proctector 1 IoCs

Detects an executable protected by an unregistered version of Eziriz's .NET Reactor.

resource	yara_rule
behavioral1/memory/3012-1-0x0000000000CD0000-0x0000000000CF2000-memory.dmp	net_reactor

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\a03dbd339a1060aec9cf0c61af677399.exe	google.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\a03dbd339a1060aec9cf0c61af677399.exe	google.exe

Executes dropped EXE 2 IoCs

pid	Process
2076	Tempserver.exe
2728	google.exe

Loads dropped DLL 2 IoCs

pid	Process
3012	JaffaCakes118_77efd9421dd7faf39488107714d8f030.exe
2076	Tempserver.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-1-5-21-1846800975-3917212583-2893086201-1000\Software\Microsoft\Windows\CurrentVersion\Run\a03dbd339a1060aec9cf0c61af677399 = "\"C:\\Users\\Admin\\AppData\\Roaming\\google.exe\" .."	google.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\a03dbd339a1060aec9cf0c61af677399 = "\"C:\\Users\\Admin\\AppData\\Roaming\\google.exe\" .."	google.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 queried	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh	netsh.exe
Key value enumerated	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh	netsh.exe
Key opened	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh	netsh.exe

System Location Discovery: System Language Discovery 1 TTPs 4 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	JaffaCakes118_77efd9421dd7faf39488107714d8f030.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Tempserver.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	google.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe

Suspicious use of AdjustPrivilegeToken 34 IoCs

description	pid	Process
Token: SeDebugPrivilege	3012	JaffaCakes118_77efd9421dd7faf39488107714d8f030.exe
Token: SeDebugPrivilege	2728	google.exe
Token: 33	2728	google.exe
Token: SeIncBasePriorityPrivilege	2728	google.exe
Token: 33	2728	google.exe
Token: SeIncBasePriorityPrivilege	2728	google.exe
Token: 33	2728	google.exe
Token: SeIncBasePriorityPrivilege	2728	google.exe
Token: 33	2728	google.exe
Token: SeIncBasePriorityPrivilege	2728	google.exe
Token: 33	2728	google.exe
Token: SeIncBasePriorityPrivilege	2728	google.exe
Token: 33	2728	google.exe
Token: SeIncBasePriorityPrivilege	2728	google.exe
Token: 33	2728	google.exe
Token: SeIncBasePriorityPrivilege	2728	google.exe
Token: 33	2728	google.exe
Token: SeIncBasePriorityPrivilege	2728	google.exe
Token: 33	2728	google.exe
Token: SeIncBasePriorityPrivilege	2728	google.exe
Token: 33	2728	google.exe
Token: SeIncBasePriorityPrivilege	2728	google.exe
Token: 33	2728	google.exe
Token: SeIncBasePriorityPrivilege	2728	google.exe
Token: 33	2728	google.exe
Token: SeIncBasePriorityPrivilege	2728	google.exe
Token: 33	2728	google.exe
Token: SeIncBasePriorityPrivilege	2728	google.exe
Token: 33	2728	google.exe
Token: SeIncBasePriorityPrivilege	2728	google.exe
Token: 33	2728	google.exe
Token: SeIncBasePriorityPrivilege	2728	google.exe
Token: 33	2728	google.exe
Token: SeIncBasePriorityPrivilege	2728	google.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 3012 wrote to memory of 2076	3012	JaffaCakes118_77efd9421dd7faf39488107714d8f030.exe	31
PID 3012 wrote to memory of 2076	3012	JaffaCakes118_77efd9421dd7faf39488107714d8f030.exe	31
PID 3012 wrote to memory of 2076	3012	JaffaCakes118_77efd9421dd7faf39488107714d8f030.exe	31
PID 3012 wrote to memory of 2076	3012	JaffaCakes118_77efd9421dd7faf39488107714d8f030.exe	31
PID 2076 wrote to memory of 2728	2076	Tempserver.exe	33
PID 2076 wrote to memory of 2728	2076	Tempserver.exe	33
PID 2076 wrote to memory of 2728	2076	Tempserver.exe	33
PID 2076 wrote to memory of 2728	2076	Tempserver.exe	33
PID 2728 wrote to memory of 2724	2728	google.exe	34
PID 2728 wrote to memory of 2724	2728	google.exe	34
PID 2728 wrote to memory of 2724	2728	google.exe	34
PID 2728 wrote to memory of 2724	2728	google.exe	34

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_77efd9421dd7faf39488107714d8f030.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_77efd9421dd7faf39488107714d8f030.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3012
- C:\Users\Admin\AppData\Local\Tempserver.exe
  "C:\Users\Admin\AppData\Local\Tempserver.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2076
- - C:\Users\Admin\AppData\Roaming\google.exe
    "C:\Users\Admin\AppData\Roaming\google.exe"
    3⤵
    - Drops startup file
    - Executes dropped EXE
    - Adds Run key to start application
    - System Location Discovery: System Language Discovery
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of WriteProcessMemory
    PID:2728
  - - C:\Windows\SysWOW64\netsh.exe
      netsh firewall add allowedprogram "C:\Users\Admin\AppData\Roaming\google.exe" "google.exe" ENABLE
      4⤵
      Modifies Windows Firewall
      Event Triggered Execution: Netsh Helper DLL
      System Location Discovery: System Language Discovery
      PID:2724

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

System Information Discovery

1

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

\Users\Admin\AppData\Local\Tempserver.exe

Filesize
23KB

MD5
40e29747ceb922c92e72aa226fcc463d

SHA1
04992f9590f27444e2489f41b7e562983b40d0a4

SHA256
19ea90e2d079da25248d961061ca3ccd614dff15276da04fc2c0e94e1f2301e4

SHA512
ce06999af386c47d7ef22e654f1a5e8711be6e2d8cc21340ee9342c28b82e6fbb985321daf8577d19d9142519cdc32f5aeb4d25c17948975a87eb4e0dbe2758b

Download Submit
memory/2076-11-0x000000006E801000-0x000000006E802000-memory.dmp

Filesize
4KB

Download
memory/2076-12-0x000000006E800000-0x000000006EDAB000-memory.dmp

Filesize
5.7MB

Download
memory/2076-13-0x000000006E800000-0x000000006EDAB000-memory.dmp

Filesize
5.7MB

Download
memory/2076-21-0x000000006E800000-0x000000006EDAB000-memory.dmp

Filesize
5.7MB

Download
memory/3012-0-0x000000007415E000-0x000000007415F000-memory.dmp

Filesize
4KB

Download
memory/3012-1-0x0000000000CD0000-0x0000000000CF2000-memory.dmp

Filesize
136KB

Download
memory/3012-2-0x0000000074150000-0x000000007483E000-memory.dmp

Filesize
6.9MB

Download
memory/3012-10-0x0000000074150000-0x000000007483E000-memory.dmp

Filesize
6.9MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads