njrat | 3b19d51ba3c07f8704e0a543f555e1330a1aa8ef003b793dae805660094d2f57

General

Target

JaffaCakes118_6f800f323700b7f05152938f09a2dc70.exe
Size

40KB
MD5

6f800f323700b7f05152938f09a2dc70
SHA1

61cbb430864d5b89c372e945344ae231293ebb11
SHA256

3b19d51ba3c07f8704e0a543f555e1330a1aa8ef003b793dae805660094d2f57
SHA512

451faa622604a3d826852efc20bfbce75ee522ee5d0a6b64f8b815f9c203e65cb194ec486b9807a8851a71ca274b03135ffa671831d2d52ec23368e4e1fae3af
SSDEEP

768:VXGiOitxriLYayR3koYMYZzC6UUN3W6fTyoK:FtxricayR9YMYZ/NfTDK

Score

10^/10

njrat 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
2912	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-1-5-21-3756129449-3121373848-4276368241-1000\Control Panel\International\Geo\Nation	JaffaCakes118_6f800f323700b7f05152938f09a2dc70.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\206ce6224e9ce61636544e87e9f6565f.exe	server.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\206ce6224e9ce61636544e87e9f6565f.exe	server.exe

Executes dropped EXE 1 IoCs

pid	Process
1324	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-1-5-21-3756129449-3121373848-4276368241-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\206ce6224e9ce61636544e87e9f6565f = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\server.exe\" .."	server.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\206ce6224e9ce61636544e87e9f6565f = "\"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\Microsoft\NetSh	netsh.exe
Key queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\NetSh	netsh.exe
Key value enumerated	\REGISTRY\MACHINE\SOFTWARE\Microsoft\NetSh	netsh.exe

Suspicious use of AdjustPrivilegeToken 35 IoCs

description	pid	Process
Token: SeDebugPrivilege	1324	server.exe
Token: 33	1324	server.exe
Token: SeIncBasePriorityPrivilege	1324	server.exe
Token: 33	1324	server.exe
Token: SeIncBasePriorityPrivilege	1324	server.exe
Token: 33	1324	server.exe
Token: SeIncBasePriorityPrivilege	1324	server.exe
Token: 33	1324	server.exe
Token: SeIncBasePriorityPrivilege	1324	server.exe
Token: 33	1324	server.exe
Token: SeIncBasePriorityPrivilege	1324	server.exe
Token: 33	1324	server.exe
Token: SeIncBasePriorityPrivilege	1324	server.exe
Token: 33	1324	server.exe
Token: SeIncBasePriorityPrivilege	1324	server.exe
Token: 33	1324	server.exe
Token: SeIncBasePriorityPrivilege	1324	server.exe
Token: 33	1324	server.exe
Token: SeIncBasePriorityPrivilege	1324	server.exe
Token: 33	1324	server.exe
Token: SeIncBasePriorityPrivilege	1324	server.exe
Token: 33	1324	server.exe
Token: SeIncBasePriorityPrivilege	1324	server.exe
Token: 33	1324	server.exe
Token: SeIncBasePriorityPrivilege	1324	server.exe
Token: 33	1324	server.exe
Token: SeIncBasePriorityPrivilege	1324	server.exe
Token: 33	1324	server.exe
Token: SeIncBasePriorityPrivilege	1324	server.exe
Token: 33	1324	server.exe
Token: SeIncBasePriorityPrivilege	1324	server.exe
Token: 33	1324	server.exe
Token: SeIncBasePriorityPrivilege	1324	server.exe
Token: 33	1324	server.exe
Token: SeIncBasePriorityPrivilege	1324	server.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 3300 wrote to memory of 1324	3300	JaffaCakes118_6f800f323700b7f05152938f09a2dc70.exe	84
PID 3300 wrote to memory of 1324	3300	JaffaCakes118_6f800f323700b7f05152938f09a2dc70.exe	84
PID 1324 wrote to memory of 2912	1324	server.exe	88
PID 1324 wrote to memory of 2912	1324	server.exe	88

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6f800f323700b7f05152938f09a2dc70.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6f800f323700b7f05152938f09a2dc70.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:3300
- C:\Users\Admin\AppData\Local\Temp\server.exe
  "C:\Users\Admin\AppData\Local\Temp\server.exe"
  2⤵
  - Drops startup file
  - Executes dropped EXE
  - Adds Run key to start application
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:1324
- - C:\Windows\SYSTEM32\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
    PID:2912

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

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

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

Filesize
40KB

MD5
6f800f323700b7f05152938f09a2dc70

SHA1
61cbb430864d5b89c372e945344ae231293ebb11

SHA256
3b19d51ba3c07f8704e0a543f555e1330a1aa8ef003b793dae805660094d2f57

SHA512
451faa622604a3d826852efc20bfbce75ee522ee5d0a6b64f8b815f9c203e65cb194ec486b9807a8851a71ca274b03135ffa671831d2d52ec23368e4e1fae3af

Download Submit
memory/1324-20-0x00007FFB697A0000-0x00007FFB6A141000-memory.dmp

Filesize
9.6MB

Download
memory/1324-19-0x00007FFB697A0000-0x00007FFB6A141000-memory.dmp

Filesize
9.6MB

Download
memory/1324-21-0x00007FFB697A0000-0x00007FFB6A141000-memory.dmp

Filesize
9.6MB

Download
memory/1324-23-0x000000001CC60000-0x000000001CCFC000-memory.dmp

Filesize
624KB

Download
memory/1324-24-0x0000000001630000-0x0000000001638000-memory.dmp

Filesize
32KB

Download
memory/1324-25-0x00007FFB697A0000-0x00007FFB6A141000-memory.dmp

Filesize
9.6MB

Download
memory/3300-2-0x00007FFB697A0000-0x00007FFB6A141000-memory.dmp

Filesize
9.6MB

Download
memory/3300-3-0x000000001BBD0000-0x000000001BC76000-memory.dmp

Filesize
664KB

Download
memory/3300-4-0x000000001C150000-0x000000001C61E000-memory.dmp

Filesize
4.8MB

Download
memory/3300-5-0x00007FFB697A0000-0x00007FFB6A141000-memory.dmp

Filesize
9.6MB

Download
memory/3300-1-0x0000000001750000-0x000000000175C000-memory.dmp

Filesize
48KB

Download
memory/3300-18-0x00007FFB697A0000-0x00007FFB6A141000-memory.dmp

Filesize
9.6MB

Download
memory/3300-0-0x00007FFB69A55000-0x00007FFB69A56000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads