njrat | 727db57d3f4400665a5dcc64fd825cbe3f645ac80e511220eec440d715126e84

General

Target

JaffaCakes118_61809b010a8f9723a9ea094d2adf3920.exe
Size

23KB
MD5

61809b010a8f9723a9ea094d2adf3920
SHA1

fcf6a1d7b507ee1cfb8899f5e58122f7befc8790
SHA256

727db57d3f4400665a5dcc64fd825cbe3f645ac80e511220eec440d715126e84
SHA512

3d533e88e74245b5bea143234904b320cdca1595c32438b8b580f7e58ad948750ceac3c7767c41de135872b1b5c2fd6791555a57692654ca7812b7ca4d3b2d4b
SSDEEP

384:zsqS+ER6vRKXGYKRWVSujUtX9w6Dglo61Z5DVmRvR6JZlbw8hqIusZzZup:of65K2Yf1jKRpcnul

Score

10^/10

njrat discovery evasion persistence privilege_escalation trojan

Malware Config

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
4760	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-1-5-21-2437139445-1151884604-3026847218-1000\Control Panel\International\Geo\Nation	JaffaCakes118_61809b010a8f9723a9ea094d2adf3920.exe

Executes dropped EXE 1 IoCs

pid	Process
5016	server.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\864b3cef75155495138d6181b5847aeb = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\server.exe\" .."	server.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\864b3cef75155495138d6181b5847aeb = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\server.exe\" .."	server.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	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_61809b010a8f9723a9ea094d2adf3920.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	server.exe

Suspicious use of AdjustPrivilegeToken 35 IoCs

description	pid	Process
Token: SeDebugPrivilege	5016	server.exe
Token: 33	5016	server.exe
Token: SeIncBasePriorityPrivilege	5016	server.exe
Token: 33	5016	server.exe
Token: SeIncBasePriorityPrivilege	5016	server.exe
Token: 33	5016	server.exe
Token: SeIncBasePriorityPrivilege	5016	server.exe
Token: 33	5016	server.exe
Token: SeIncBasePriorityPrivilege	5016	server.exe
Token: 33	5016	server.exe
Token: SeIncBasePriorityPrivilege	5016	server.exe
Token: 33	5016	server.exe
Token: SeIncBasePriorityPrivilege	5016	server.exe
Token: 33	5016	server.exe
Token: SeIncBasePriorityPrivilege	5016	server.exe
Token: 33	5016	server.exe
Token: SeIncBasePriorityPrivilege	5016	server.exe
Token: 33	5016	server.exe
Token: SeIncBasePriorityPrivilege	5016	server.exe
Token: 33	5016	server.exe
Token: SeIncBasePriorityPrivilege	5016	server.exe
Token: 33	5016	server.exe
Token: SeIncBasePriorityPrivilege	5016	server.exe
Token: 33	5016	server.exe
Token: SeIncBasePriorityPrivilege	5016	server.exe
Token: 33	5016	server.exe
Token: SeIncBasePriorityPrivilege	5016	server.exe
Token: 33	5016	server.exe
Token: SeIncBasePriorityPrivilege	5016	server.exe
Token: 33	5016	server.exe
Token: SeIncBasePriorityPrivilege	5016	server.exe
Token: 33	5016	server.exe
Token: SeIncBasePriorityPrivilege	5016	server.exe
Token: 33	5016	server.exe
Token: SeIncBasePriorityPrivilege	5016	server.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 988 wrote to memory of 5016	988	JaffaCakes118_61809b010a8f9723a9ea094d2adf3920.exe	84
PID 988 wrote to memory of 5016	988	JaffaCakes118_61809b010a8f9723a9ea094d2adf3920.exe	84
PID 988 wrote to memory of 5016	988	JaffaCakes118_61809b010a8f9723a9ea094d2adf3920.exe	84
PID 5016 wrote to memory of 4760	5016	server.exe	91
PID 5016 wrote to memory of 4760	5016	server.exe	91
PID 5016 wrote to memory of 4760	5016	server.exe	91

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_61809b010a8f9723a9ea094d2adf3920.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_61809b010a8f9723a9ea094d2adf3920.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:988
- C:\Users\Admin\AppData\Local\Temp\server.exe
  "C:\Users\Admin\AppData\Local\Temp\server.exe"
  2⤵
  - Executes dropped EXE
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:5016
- - C:\Windows\SysWOW64\netsh.exe
    netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\server.exe" "server.exe" ENABLE
    3⤵
    - Modifies Windows Firewall
    - Event Triggered Execution: Netsh Helper DLL
    - System Location Discovery: System Language Discovery
    PID:4760

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

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Downloads

C:\Users\Admin\AppData\Local\Temp\server.exe

Filesize
23KB

MD5
61809b010a8f9723a9ea094d2adf3920

SHA1
fcf6a1d7b507ee1cfb8899f5e58122f7befc8790

SHA256
727db57d3f4400665a5dcc64fd825cbe3f645ac80e511220eec440d715126e84

SHA512
3d533e88e74245b5bea143234904b320cdca1595c32438b8b580f7e58ad948750ceac3c7767c41de135872b1b5c2fd6791555a57692654ca7812b7ca4d3b2d4b

Download Submit
memory/988-0-0x0000000074892000-0x0000000074893000-memory.dmp

Filesize
4KB

Download
memory/988-1-0x0000000074890000-0x0000000074E41000-memory.dmp

Filesize
5.7MB

Download
memory/988-2-0x0000000074890000-0x0000000074E41000-memory.dmp

Filesize
5.7MB

Download
memory/988-13-0x0000000074890000-0x0000000074E41000-memory.dmp

Filesize
5.7MB

Download
memory/5016-12-0x0000000074890000-0x0000000074E41000-memory.dmp

Filesize
5.7MB

Download
memory/5016-14-0x0000000074890000-0x0000000074E41000-memory.dmp

Filesize
5.7MB

Download
memory/5016-15-0x0000000074890000-0x0000000074E41000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads