njrat | a75953294db60977740433019e945b2022d5b6909fa4fee0dc4438f42b14a133

General

Target

JaffaCakes118_675b6ee617ceb012aa2098c1e0bffe20.exe
Size

324KB
MD5

675b6ee617ceb012aa2098c1e0bffe20
SHA1

57824e54f9a1a7be9f4de737fed65b9978c88ac6
SHA256

a75953294db60977740433019e945b2022d5b6909fa4fee0dc4438f42b14a133
SHA512

b1ae89904bc914580983025a67dad5a487aeb25ca94301ad2817362a7d7f6a5bee63d2cd277ac4fee437ad5a371549416ffb4abae95ac1cb51520917147aac9d
SSDEEP

6144:dR1ClN2OCGxLryGyT7DnnyQdHIMIL1UJ8l4QlO6R/Ikd2nANBmFYjZwlNDfrwnE+:MCGFryGyT7DnnyEfrpNHgowUJ7KDfNG9

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
1104	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-1-5-21-3227495264-2217614367-4027411560-1000\Control Panel\International\Geo\Nation	JaffaCakes118_675b6ee617ceb012aa2098c1e0bffe20.exe

Executes dropped EXE 1 IoCs

pid	Process
1080	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-1-5-21-3227495264-2217614367-4027411560-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\212683d986fb740ad6a40184df48e604 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\server.exe\" .."	server.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\212683d986fb740ad6a40184df48e604 = "\"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_675b6ee617ceb012aa2098c1e0bffe20.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	1080	server.exe
Token: 33	1080	server.exe
Token: SeIncBasePriorityPrivilege	1080	server.exe
Token: 33	1080	server.exe
Token: SeIncBasePriorityPrivilege	1080	server.exe
Token: 33	1080	server.exe
Token: SeIncBasePriorityPrivilege	1080	server.exe
Token: 33	1080	server.exe
Token: SeIncBasePriorityPrivilege	1080	server.exe
Token: 33	1080	server.exe
Token: SeIncBasePriorityPrivilege	1080	server.exe
Token: 33	1080	server.exe
Token: SeIncBasePriorityPrivilege	1080	server.exe
Token: 33	1080	server.exe
Token: SeIncBasePriorityPrivilege	1080	server.exe
Token: 33	1080	server.exe
Token: SeIncBasePriorityPrivilege	1080	server.exe
Token: 33	1080	server.exe
Token: SeIncBasePriorityPrivilege	1080	server.exe
Token: 33	1080	server.exe
Token: SeIncBasePriorityPrivilege	1080	server.exe
Token: 33	1080	server.exe
Token: SeIncBasePriorityPrivilege	1080	server.exe
Token: 33	1080	server.exe
Token: SeIncBasePriorityPrivilege	1080	server.exe
Token: 33	1080	server.exe
Token: SeIncBasePriorityPrivilege	1080	server.exe
Token: 33	1080	server.exe
Token: SeIncBasePriorityPrivilege	1080	server.exe
Token: 33	1080	server.exe
Token: SeIncBasePriorityPrivilege	1080	server.exe
Token: 33	1080	server.exe
Token: SeIncBasePriorityPrivilege	1080	server.exe
Token: 33	1080	server.exe
Token: SeIncBasePriorityPrivilege	1080	server.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 3440 wrote to memory of 1080	3440	JaffaCakes118_675b6ee617ceb012aa2098c1e0bffe20.exe	82
PID 3440 wrote to memory of 1080	3440	JaffaCakes118_675b6ee617ceb012aa2098c1e0bffe20.exe	82
PID 3440 wrote to memory of 1080	3440	JaffaCakes118_675b6ee617ceb012aa2098c1e0bffe20.exe	82
PID 1080 wrote to memory of 1104	1080	server.exe	87
PID 1080 wrote to memory of 1104	1080	server.exe	87
PID 1080 wrote to memory of 1104	1080	server.exe	87

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_675b6ee617ceb012aa2098c1e0bffe20.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_675b6ee617ceb012aa2098c1e0bffe20.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3440
- 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:1080
- - 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:1104

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
324KB

MD5
675b6ee617ceb012aa2098c1e0bffe20

SHA1
57824e54f9a1a7be9f4de737fed65b9978c88ac6

SHA256
a75953294db60977740433019e945b2022d5b6909fa4fee0dc4438f42b14a133

SHA512
b1ae89904bc914580983025a67dad5a487aeb25ca94301ad2817362a7d7f6a5bee63d2cd277ac4fee437ad5a371549416ffb4abae95ac1cb51520917147aac9d

Download Submit
memory/1080-15-0x00000000753F0000-0x00000000759A1000-memory.dmp

Filesize
5.7MB

Download
memory/1080-17-0x00000000753F0000-0x00000000759A1000-memory.dmp

Filesize
5.7MB

Download
memory/1080-18-0x00000000753F0000-0x00000000759A1000-memory.dmp

Filesize
5.7MB

Download
memory/1080-19-0x00000000753F0000-0x00000000759A1000-memory.dmp

Filesize
5.7MB

Download
memory/3440-0-0x00000000753F2000-0x00000000753F3000-memory.dmp

Filesize
4KB

Download
memory/3440-1-0x00000000753F0000-0x00000000759A1000-memory.dmp

Filesize
5.7MB

Download
memory/3440-2-0x00000000753F0000-0x00000000759A1000-memory.dmp

Filesize
5.7MB

Download
memory/3440-16-0x00000000753F0000-0x00000000759A1000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads