njrat | 5b030a8b4e1c9f8a81cac90c6cad0efc430151395cb3454816cf8ed1b62aa5a4

General

Target

68216278b9c4ccd9b43aebe265f7a7f3_JaffaCakes118.exe
Size

144KB
MD5

68216278b9c4ccd9b43aebe265f7a7f3
SHA1

e3600773483a7bf85592e81bdf640594bd65b29a
SHA256

5b030a8b4e1c9f8a81cac90c6cad0efc430151395cb3454816cf8ed1b62aa5a4
SHA512

76b5daaf49dd69b8f443352e7c1124e5c51da1f04f2208da07067acc4708080ff310becbe51485fc4827bdaeeee3f94cc9568c9b56968420ccb8be12c887fd4e
SSDEEP

1536:d58XlHlyzZy/1Hez3RUQxW0x0dGdxWG7ydSmq72Xb15ze7n95:b8XR83RUQkMgGd5AMCXx5ze7n95

Score

10^/10

njrat discovery evasion persistence privilege_escalation trojan

Malware Config

Signatures

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
3544	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-1-5-21-4089630652-1596403869-279772308-1000\Control Panel\International\Geo\Nation	68216278b9c4ccd9b43aebe265f7a7f3_JaffaCakes118.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\5a88734e91d46ecc477c9189ca67c2a2.exe	server.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\5a88734e91d46ecc477c9189ca67c2a2.exe	server.exe

Executes dropped EXE 1 IoCs

pid	Process
1812	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-1-5-21-4089630652-1596403869-279772308-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\5a88734e91d46ecc477c9189ca67c2a2 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\server.exe\" .."	server.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\5a88734e91d46ecc477c9189ca67c2a2 = "\"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	68216278b9c4ccd9b43aebe265f7a7f3_JaffaCakes118.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	1812	server.exe
Token: 33	1812	server.exe
Token: SeIncBasePriorityPrivilege	1812	server.exe
Token: 33	1812	server.exe
Token: SeIncBasePriorityPrivilege	1812	server.exe
Token: 33	1812	server.exe
Token: SeIncBasePriorityPrivilege	1812	server.exe
Token: 33	1812	server.exe
Token: SeIncBasePriorityPrivilege	1812	server.exe
Token: 33	1812	server.exe
Token: SeIncBasePriorityPrivilege	1812	server.exe
Token: 33	1812	server.exe
Token: SeIncBasePriorityPrivilege	1812	server.exe
Token: 33	1812	server.exe
Token: SeIncBasePriorityPrivilege	1812	server.exe
Token: 33	1812	server.exe
Token: SeIncBasePriorityPrivilege	1812	server.exe
Token: 33	1812	server.exe
Token: SeIncBasePriorityPrivilege	1812	server.exe
Token: 33	1812	server.exe
Token: SeIncBasePriorityPrivilege	1812	server.exe
Token: 33	1812	server.exe
Token: SeIncBasePriorityPrivilege	1812	server.exe
Token: 33	1812	server.exe
Token: SeIncBasePriorityPrivilege	1812	server.exe
Token: 33	1812	server.exe
Token: SeIncBasePriorityPrivilege	1812	server.exe
Token: 33	1812	server.exe
Token: SeIncBasePriorityPrivilege	1812	server.exe
Token: 33	1812	server.exe
Token: SeIncBasePriorityPrivilege	1812	server.exe
Token: 33	1812	server.exe
Token: SeIncBasePriorityPrivilege	1812	server.exe
Token: 33	1812	server.exe
Token: SeIncBasePriorityPrivilege	1812	server.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4840 wrote to memory of 1812	4840	68216278b9c4ccd9b43aebe265f7a7f3_JaffaCakes118.exe	92
PID 4840 wrote to memory of 1812	4840	68216278b9c4ccd9b43aebe265f7a7f3_JaffaCakes118.exe	92
PID 4840 wrote to memory of 1812	4840	68216278b9c4ccd9b43aebe265f7a7f3_JaffaCakes118.exe	92
PID 1812 wrote to memory of 3544	1812	server.exe	96
PID 1812 wrote to memory of 3544	1812	server.exe	96
PID 1812 wrote to memory of 3544	1812	server.exe	96

C:\Users\Admin\AppData\Local\Temp\68216278b9c4ccd9b43aebe265f7a7f3_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\68216278b9c4ccd9b43aebe265f7a7f3_JaffaCakes118.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4840
- 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
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:1812
- - 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:3544

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
144KB

MD5
68216278b9c4ccd9b43aebe265f7a7f3

SHA1
e3600773483a7bf85592e81bdf640594bd65b29a

SHA256
5b030a8b4e1c9f8a81cac90c6cad0efc430151395cb3454816cf8ed1b62aa5a4

SHA512
76b5daaf49dd69b8f443352e7c1124e5c51da1f04f2208da07067acc4708080ff310becbe51485fc4827bdaeeee3f94cc9568c9b56968420ccb8be12c887fd4e

Download Submit
memory/1812-12-0x0000000074C60000-0x0000000075211000-memory.dmp

Filesize
5.7MB

Download
memory/1812-15-0x0000000074C60000-0x0000000075211000-memory.dmp

Filesize
5.7MB

Download
memory/1812-14-0x0000000074C60000-0x0000000075211000-memory.dmp

Filesize
5.7MB

Download
memory/1812-17-0x0000000074C60000-0x0000000075211000-memory.dmp

Filesize
5.7MB

Download
memory/4840-0-0x0000000074C62000-0x0000000074C63000-memory.dmp

Filesize
4KB

Download
memory/4840-1-0x0000000074C60000-0x0000000075211000-memory.dmp

Filesize
5.7MB

Download
memory/4840-2-0x0000000074C60000-0x0000000075211000-memory.dmp

Filesize
5.7MB

Download
memory/4840-13-0x0000000074C60000-0x0000000075211000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads