njrat | 88ca79c718f3f881dee6e611bede6f508bb4ad1914c7dbf0546af22524b71d82

General

Target

JaffaCakes118_68a39cf8442aacbc6bf955f1c4cf2e90.exe
Size

23KB
MD5

68a39cf8442aacbc6bf955f1c4cf2e90
SHA1

68d17ca7dad1bebd01721585b04896cf2269c88b
SHA256

88ca79c718f3f881dee6e611bede6f508bb4ad1914c7dbf0546af22524b71d82
SHA512

7177bb5fb73b8f9aabc9588fabc2834b74aa7fb00ad56b17ad45e0018ef2db4a56e304e43e6510183dde0d5a6f914b9e3c1904ca1abb807cf14b0eac2e2f78fc
SSDEEP

384:Nc6ze6e1PAhJVzC3tC1im/BsTx46PgZ0rap9HBmRvR6JZlbw8hqIusZzZmKI:ne9EJLN/yRpcnuT

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
4780	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-1-5-21-4050598569-1597076380-177084960-1000\Control Panel\International\Geo\Nation	JaffaCakes118_68a39cf8442aacbc6bf955f1c4cf2e90.exe

Executes dropped EXE 1 IoCs

pid	Process
3596	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\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\5a9ec245d72f27eba6af8c0e2d494050 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\server.exe\" .."	server.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4050598569-1597076380-177084960-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\5a9ec245d72f27eba6af8c0e2d494050 = "\"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	JaffaCakes118_68a39cf8442aacbc6bf955f1c4cf2e90.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	server.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe

Suspicious use of AdjustPrivilegeToken 35 IoCs

description	pid	Process
Token: SeDebugPrivilege	3596	server.exe
Token: 33	3596	server.exe
Token: SeIncBasePriorityPrivilege	3596	server.exe
Token: 33	3596	server.exe
Token: SeIncBasePriorityPrivilege	3596	server.exe
Token: 33	3596	server.exe
Token: SeIncBasePriorityPrivilege	3596	server.exe
Token: 33	3596	server.exe
Token: SeIncBasePriorityPrivilege	3596	server.exe
Token: 33	3596	server.exe
Token: SeIncBasePriorityPrivilege	3596	server.exe
Token: 33	3596	server.exe
Token: SeIncBasePriorityPrivilege	3596	server.exe
Token: 33	3596	server.exe
Token: SeIncBasePriorityPrivilege	3596	server.exe
Token: 33	3596	server.exe
Token: SeIncBasePriorityPrivilege	3596	server.exe
Token: 33	3596	server.exe
Token: SeIncBasePriorityPrivilege	3596	server.exe
Token: 33	3596	server.exe
Token: SeIncBasePriorityPrivilege	3596	server.exe
Token: 33	3596	server.exe
Token: SeIncBasePriorityPrivilege	3596	server.exe
Token: 33	3596	server.exe
Token: SeIncBasePriorityPrivilege	3596	server.exe
Token: 33	3596	server.exe
Token: SeIncBasePriorityPrivilege	3596	server.exe
Token: 33	3596	server.exe
Token: SeIncBasePriorityPrivilege	3596	server.exe
Token: 33	3596	server.exe
Token: SeIncBasePriorityPrivilege	3596	server.exe
Token: 33	3596	server.exe
Token: SeIncBasePriorityPrivilege	3596	server.exe
Token: 33	3596	server.exe
Token: SeIncBasePriorityPrivilege	3596	server.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 2804 wrote to memory of 3596	2804	JaffaCakes118_68a39cf8442aacbc6bf955f1c4cf2e90.exe	82
PID 2804 wrote to memory of 3596	2804	JaffaCakes118_68a39cf8442aacbc6bf955f1c4cf2e90.exe	82
PID 2804 wrote to memory of 3596	2804	JaffaCakes118_68a39cf8442aacbc6bf955f1c4cf2e90.exe	82
PID 3596 wrote to memory of 4780	3596	server.exe	83
PID 3596 wrote to memory of 4780	3596	server.exe	83
PID 3596 wrote to memory of 4780	3596	server.exe	83

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_68a39cf8442aacbc6bf955f1c4cf2e90.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_68a39cf8442aacbc6bf955f1c4cf2e90.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2804
- 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:3596
- - 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:4780

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
68a39cf8442aacbc6bf955f1c4cf2e90

SHA1
68d17ca7dad1bebd01721585b04896cf2269c88b

SHA256
88ca79c718f3f881dee6e611bede6f508bb4ad1914c7dbf0546af22524b71d82

SHA512
7177bb5fb73b8f9aabc9588fabc2834b74aa7fb00ad56b17ad45e0018ef2db4a56e304e43e6510183dde0d5a6f914b9e3c1904ca1abb807cf14b0eac2e2f78fc

Download Submit
memory/2804-0-0x00000000750B2000-0x00000000750B3000-memory.dmp

Filesize
4KB

Download
memory/2804-1-0x00000000750B0000-0x0000000075661000-memory.dmp

Filesize
5.7MB

Download
memory/2804-2-0x00000000750B0000-0x0000000075661000-memory.dmp

Filesize
5.7MB

Download
memory/2804-13-0x00000000750B0000-0x0000000075661000-memory.dmp

Filesize
5.7MB

Download
memory/3596-12-0x00000000750B0000-0x0000000075661000-memory.dmp

Filesize
5.7MB

Download
memory/3596-14-0x00000000750B0000-0x0000000075661000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads