njrat | b27c09b124308ccac9fe09314acccce3832e80c3a08ce067b0bc798609ea367f

General

Target

b27c09b124308ccac9fe09314acccce3832e80c3a08ce067b0bc798609ea367fN.exe
Size

23KB
MD5

4078c5e6d1a746f0659b54fae5745510
SHA1

2468153b9107b6b8fa1a077f6d30082e66084b4a
SHA256

b27c09b124308ccac9fe09314acccce3832e80c3a08ce067b0bc798609ea367f
SHA512

467b12d5f42dc2bbc5bd46b590c85bbab18cb1a75d97e0991352d4e17199ade8372c694d83135cee927f4addb967e2ee96d5df233b6e04567a218d426b0bf41b
SSDEEP

384:sPQeCo2zmZbQHkJeCdUwBvQ61gjuQBnB9mRvR6JZlbw8hqIusZzZ7I:sQ5yBVd7Rpcnu/

Score

10^/10

njrat user discovery evasion persistence privilege_escalation trojan

Malware Config

Extracted

Family

njrat

Version

0.7d

Botnet

user

C2

windowssistem.duckdns.org:5020

Mutex

cff070eafb77e420cce40ff9e3f8a491

Attributes

reg_key
cff070eafb77e420cce40ff9e3f8a491
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
2788	netsh.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\cff070eafb77e420cce40ff9e3f8a491.exe	windows.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\cff070eafb77e420cce40ff9e3f8a491.exe	windows.exe

Executes dropped EXE 1 IoCs

pid	Process
2740	windows.exe

Loads dropped DLL 1 IoCs

pid	Process
2396	b27c09b124308ccac9fe09314acccce3832e80c3a08ce067b0bc798609ea367fN.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-1-5-21-3434294380-2554721341-1919518612-1000\Software\Microsoft\Windows\CurrentVersion\Run\cff070eafb77e420cce40ff9e3f8a491 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\windows.exe\" .."	windows.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\cff070eafb77e420cce40ff9e3f8a491 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\windows.exe\" .."	windows.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	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	b27c09b124308ccac9fe09314acccce3832e80c3a08ce067b0bc798609ea367fN.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	windows.exe

Suspicious use of AdjustPrivilegeToken 27 IoCs

description	pid	Process
Token: SeDebugPrivilege	2740	windows.exe
Token: 33	2740	windows.exe
Token: SeIncBasePriorityPrivilege	2740	windows.exe
Token: 33	2740	windows.exe
Token: SeIncBasePriorityPrivilege	2740	windows.exe
Token: 33	2740	windows.exe
Token: SeIncBasePriorityPrivilege	2740	windows.exe
Token: 33	2740	windows.exe
Token: SeIncBasePriorityPrivilege	2740	windows.exe
Token: 33	2740	windows.exe
Token: SeIncBasePriorityPrivilege	2740	windows.exe
Token: 33	2740	windows.exe
Token: SeIncBasePriorityPrivilege	2740	windows.exe
Token: 33	2740	windows.exe
Token: SeIncBasePriorityPrivilege	2740	windows.exe
Token: 33	2740	windows.exe
Token: SeIncBasePriorityPrivilege	2740	windows.exe
Token: 33	2740	windows.exe
Token: SeIncBasePriorityPrivilege	2740	windows.exe
Token: 33	2740	windows.exe
Token: SeIncBasePriorityPrivilege	2740	windows.exe
Token: 33	2740	windows.exe
Token: SeIncBasePriorityPrivilege	2740	windows.exe
Token: 33	2740	windows.exe
Token: SeIncBasePriorityPrivilege	2740	windows.exe
Token: 33	2740	windows.exe
Token: SeIncBasePriorityPrivilege	2740	windows.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 2396 wrote to memory of 2740	2396	b27c09b124308ccac9fe09314acccce3832e80c3a08ce067b0bc798609ea367fN.exe	30
PID 2396 wrote to memory of 2740	2396	b27c09b124308ccac9fe09314acccce3832e80c3a08ce067b0bc798609ea367fN.exe	30
PID 2396 wrote to memory of 2740	2396	b27c09b124308ccac9fe09314acccce3832e80c3a08ce067b0bc798609ea367fN.exe	30
PID 2396 wrote to memory of 2740	2396	b27c09b124308ccac9fe09314acccce3832e80c3a08ce067b0bc798609ea367fN.exe	30
PID 2740 wrote to memory of 2788	2740	windows.exe	31
PID 2740 wrote to memory of 2788	2740	windows.exe	31
PID 2740 wrote to memory of 2788	2740	windows.exe	31
PID 2740 wrote to memory of 2788	2740	windows.exe	31

C:\Users\Admin\AppData\Local\Temp\b27c09b124308ccac9fe09314acccce3832e80c3a08ce067b0bc798609ea367fN.exe
"C:\Users\Admin\AppData\Local\Temp\b27c09b124308ccac9fe09314acccce3832e80c3a08ce067b0bc798609ea367fN.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2396
- C:\Users\Admin\AppData\Local\Temp\windows.exe
  "C:\Users\Admin\AppData\Local\Temp\windows.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:2740
- - C:\Windows\SysWOW64\netsh.exe
    netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\windows.exe" "windows.exe" ENABLE
    3⤵
    - Modifies Windows Firewall
    - Event Triggered Execution: Netsh Helper DLL
    - System Location Discovery: System Language Discovery
    PID:2788

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\windows.exe

Filesize
23KB

MD5
4078c5e6d1a746f0659b54fae5745510

SHA1
2468153b9107b6b8fa1a077f6d30082e66084b4a

SHA256
b27c09b124308ccac9fe09314acccce3832e80c3a08ce067b0bc798609ea367f

SHA512
467b12d5f42dc2bbc5bd46b590c85bbab18cb1a75d97e0991352d4e17199ade8372c694d83135cee927f4addb967e2ee96d5df233b6e04567a218d426b0bf41b

Download Submit
memory/2396-0-0x0000000074B11000-0x0000000074B12000-memory.dmp

Filesize
4KB

Download
memory/2396-1-0x0000000074B10000-0x00000000750BB000-memory.dmp

Filesize
5.7MB

Download
memory/2396-2-0x0000000074B10000-0x00000000750BB000-memory.dmp

Filesize
5.7MB

Download
memory/2396-12-0x0000000074B10000-0x00000000750BB000-memory.dmp

Filesize
5.7MB

Download
memory/2396-13-0x0000000074B10000-0x00000000750BB000-memory.dmp

Filesize
5.7MB

Download
memory/2740-10-0x0000000074B10000-0x00000000750BB000-memory.dmp

Filesize
5.7MB

Download
memory/2740-11-0x0000000074B10000-0x00000000750BB000-memory.dmp

Filesize
5.7MB

Download
memory/2740-15-0x0000000074B10000-0x00000000750BB000-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