njrat | 652984db4fa609aa511588d230d1d649f99ab2b2b2406266767f338df9180809

General

Target

d9d6b4de0bcd753696416e79bf4326a8_JaffaCakes118.exe
Size

23KB
MD5

d9d6b4de0bcd753696416e79bf4326a8
SHA1

8709c533630cc4605a2026cefea3a318f7ac68a7
SHA256

652984db4fa609aa511588d230d1d649f99ab2b2b2406266767f338df9180809
SHA512

206b05a04e75931826047d27b27f3458c8ade2eff915755edd61897990b3731334a5fb9cf78768a3775350b23f531c91710f775d3590668d1926ae47f997e4a0
SSDEEP

384:qMK6b2GZsx/Yr1+liORH1kcPFQ6Lg9gSOYRr9mRvR6JZlbw8hqIusZzZZd:Vb9glF51LRpcnuw

Score

10^/10

njrat explerer.exe discovery evasion persistence privilege_escalation trojan

Malware Config

Extracted

Family

njrat

Version

0.7d

Botnet

Explerer.exe

C2

127.0.0.1:3158

Mutex

4c4aa92a215563e1cf8eab046cd035b7

Attributes

reg_key
4c4aa92a215563e1cf8eab046cd035b7
splitter
|'|'|

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
2312	netsh.exe

Executes dropped EXE 1 IoCs

pid	Process
1864	Explerer.exe

Loads dropped DLL 1 IoCs

pid	Process
2988	d9d6b4de0bcd753696416e79bf4326a8_JaffaCakes118.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-1-5-21-312935884-697965778-3955649944-1000\Software\Microsoft\Windows\CurrentVersion\Run\4c4aa92a215563e1cf8eab046cd035b7 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\Explerer.exe\" .."	Explerer.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\4c4aa92a215563e1cf8eab046cd035b7 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\Explerer.exe\" .."	Explerer.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 queried	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh	netsh.exe
Key value enumerated	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh	netsh.exe
Key opened	\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	d9d6b4de0bcd753696416e79bf4326a8_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Explerer.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe

Suspicious use of AdjustPrivilegeToken 35 IoCs

description	pid	Process
Token: SeDebugPrivilege	1864	Explerer.exe
Token: 33	1864	Explerer.exe
Token: SeIncBasePriorityPrivilege	1864	Explerer.exe
Token: 33	1864	Explerer.exe
Token: SeIncBasePriorityPrivilege	1864	Explerer.exe
Token: 33	1864	Explerer.exe
Token: SeIncBasePriorityPrivilege	1864	Explerer.exe
Token: 33	1864	Explerer.exe
Token: SeIncBasePriorityPrivilege	1864	Explerer.exe
Token: 33	1864	Explerer.exe
Token: SeIncBasePriorityPrivilege	1864	Explerer.exe
Token: 33	1864	Explerer.exe
Token: SeIncBasePriorityPrivilege	1864	Explerer.exe
Token: 33	1864	Explerer.exe
Token: SeIncBasePriorityPrivilege	1864	Explerer.exe
Token: 33	1864	Explerer.exe
Token: SeIncBasePriorityPrivilege	1864	Explerer.exe
Token: 33	1864	Explerer.exe
Token: SeIncBasePriorityPrivilege	1864	Explerer.exe
Token: 33	1864	Explerer.exe
Token: SeIncBasePriorityPrivilege	1864	Explerer.exe
Token: 33	1864	Explerer.exe
Token: SeIncBasePriorityPrivilege	1864	Explerer.exe
Token: 33	1864	Explerer.exe
Token: SeIncBasePriorityPrivilege	1864	Explerer.exe
Token: 33	1864	Explerer.exe
Token: SeIncBasePriorityPrivilege	1864	Explerer.exe
Token: 33	1864	Explerer.exe
Token: SeIncBasePriorityPrivilege	1864	Explerer.exe
Token: 33	1864	Explerer.exe
Token: SeIncBasePriorityPrivilege	1864	Explerer.exe
Token: 33	1864	Explerer.exe
Token: SeIncBasePriorityPrivilege	1864	Explerer.exe
Token: 33	1864	Explerer.exe
Token: SeIncBasePriorityPrivilege	1864	Explerer.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 2988 wrote to memory of 1864	2988	d9d6b4de0bcd753696416e79bf4326a8_JaffaCakes118.exe	31
PID 2988 wrote to memory of 1864	2988	d9d6b4de0bcd753696416e79bf4326a8_JaffaCakes118.exe	31
PID 2988 wrote to memory of 1864	2988	d9d6b4de0bcd753696416e79bf4326a8_JaffaCakes118.exe	31
PID 2988 wrote to memory of 1864	2988	d9d6b4de0bcd753696416e79bf4326a8_JaffaCakes118.exe	31
PID 1864 wrote to memory of 2312	1864	Explerer.exe	32
PID 1864 wrote to memory of 2312	1864	Explerer.exe	32
PID 1864 wrote to memory of 2312	1864	Explerer.exe	32
PID 1864 wrote to memory of 2312	1864	Explerer.exe	32

C:\Users\Admin\AppData\Local\Temp\d9d6b4de0bcd753696416e79bf4326a8_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\d9d6b4de0bcd753696416e79bf4326a8_JaffaCakes118.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2988
- C:\Users\Admin\AppData\Local\Temp\Explerer.exe
  "C:\Users\Admin\AppData\Local\Temp\Explerer.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:1864
- - C:\Windows\SysWOW64\netsh.exe
    netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\Explerer.exe" "Explerer.exe" ENABLE
    3⤵
    - Modifies Windows Firewall
    - Event Triggered Execution: Netsh Helper DLL
    - System Location Discovery: System Language Discovery
    PID:2312

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

System Information Discovery

1

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

\Users\Admin\AppData\Local\Temp\Explerer.exe

Filesize
23KB

MD5
d9d6b4de0bcd753696416e79bf4326a8

SHA1
8709c533630cc4605a2026cefea3a318f7ac68a7

SHA256
652984db4fa609aa511588d230d1d649f99ab2b2b2406266767f338df9180809

SHA512
206b05a04e75931826047d27b27f3458c8ade2eff915755edd61897990b3731334a5fb9cf78768a3775350b23f531c91710f775d3590668d1926ae47f997e4a0

Download Submit
memory/1864-10-0x0000000074B70000-0x000000007511B000-memory.dmp

Filesize
5.7MB

Download
memory/1864-11-0x0000000074B70000-0x000000007511B000-memory.dmp

Filesize
5.7MB

Download
memory/1864-12-0x0000000074B70000-0x000000007511B000-memory.dmp

Filesize
5.7MB

Download
memory/1864-15-0x0000000074B70000-0x000000007511B000-memory.dmp

Filesize
5.7MB

Download
memory/1864-16-0x0000000074B70000-0x000000007511B000-memory.dmp

Filesize
5.7MB

Download
memory/2988-0-0x0000000074B71000-0x0000000074B72000-memory.dmp

Filesize
4KB

Download
memory/2988-1-0x0000000074B70000-0x000000007511B000-memory.dmp

Filesize
5.7MB

Download
memory/2988-2-0x0000000074B70000-0x000000007511B000-memory.dmp

Filesize
5.7MB

Download
memory/2988-13-0x0000000074B70000-0x000000007511B000-memory.dmp

Filesize
5.7MB

Download
memory/2988-14-0x0000000074B70000-0x000000007511B000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads