njrat | f04597d7204b14de98b22b9495e5bbc25701b51bc7e8878a8ac0d4fc5a123c23

Analysis

max time kernel
150s
max time network
118s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
25-10-2024 08:56

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General

Target

Server.exe
Size

93KB
MD5

3715d6ae97ccefef54ecc91e874aea8c
SHA1

4a690c46ffa912deb60359655a021a297fb41383
SHA256

f04597d7204b14de98b22b9495e5bbc25701b51bc7e8878a8ac0d4fc5a123c23
SHA512

4eb40bde8bac03010bbcacc75a61d2734a64690dfc0f5c179f4ce4311ecbc545164390307c4243b507c035db1e003cbd09bc5c38126cd078a644cfd99bf6918b
SSDEEP

768:6Y3wM7yZnDQMMpAZrGSt6udttXy4sahkGJiXxrjEtCdnl2pi1Rz4Rk31sGdpygS7:6M+ZD3rGWNd7dhkhjEwzGi1dDFDygS

Score

10^/10

njrat hacked discovery evasion persistence privilege_escalation trojan

Malware Config

Extracted

Family

njrat

Version

0.7d

Botnet

HacKed

hakim32.ddns.net:2000

127.0.0.1:5552

Mutex

6145612c2bacdafee10132b5a5ecf5b1

Attributes

reg_key
6145612c2bacdafee10132b5a5ecf5b1
splitter
|'|'|

Signatures

njRAT/Bladabindi
Widely used RAT written in .NET.
trojan njrat
Disables Task Manager via registry modification
evasion

Modifies Windows Firewall 2 TTPs 3 IoCs

evasion

Windows Service

T1543.003

Disable or Modify System Firewall

T1562.004

pid	Process
2752	netsh.exe
564	netsh.exe
2964	netsh.exe

Drops startup file 6 IoCs

description	ioc	Process
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Microsoft Corporation.exe	server.exe
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\6145612c2bacdafee10132b5a5ecf5b1Windows Update.exe	server.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\6145612c2bacdafee10132b5a5ecf5b1Windows Update.exe	server.exe
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Explower.exe	server.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Explower.exe	server.exe
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Microsoft Corporation.exe	server.exe

Executes dropped EXE 1 IoCs

pid	Process
696	server.exe

Loads dropped DLL 2 IoCs

pid	Process
976	Server.exe
976	Server.exe

Drops autorun.inf file 1 TTPs 4 IoCs

Malware can abuse Windows Autorun to spread further via attached volumes.

Replication Through Removable Media

T1091

description	ioc	Process
File created	C:\autorun.inf	server.exe
File opened for modification	C:\autorun.inf	server.exe
File created	F:\autorun.inf	server.exe
File opened for modification	F:\autorun.inf	server.exe

Drops file in System32 directory 2 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\Explower.exe	server.exe
File opened for modification	C:\Windows\SysWOW64\Explower.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 9 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 value enumerated	\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
Key queried	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh	netsh.exe
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
Key opened	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh	netsh.exe
Key queried	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh	netsh.exe

System Location Discovery: System Language Discovery 1 TTPs 5 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	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Server.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	server.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
696	server.exe
696	server.exe
696	server.exe
696	server.exe
696	server.exe
696	server.exe
696	server.exe
696	server.exe
696	server.exe
696	server.exe
696	server.exe
696	server.exe
696	server.exe
696	server.exe
696	server.exe
696	server.exe
696	server.exe
696	server.exe
696	server.exe
696	server.exe
696	server.exe
696	server.exe
696	server.exe
696	server.exe
696	server.exe
696	server.exe
696	server.exe
696	server.exe
696	server.exe
696	server.exe
696	server.exe
696	server.exe
696	server.exe
696	server.exe
696	server.exe
696	server.exe
696	server.exe
696	server.exe
696	server.exe
696	server.exe
696	server.exe
696	server.exe
696	server.exe
696	server.exe
696	server.exe
696	server.exe
696	server.exe
696	server.exe
696	server.exe
696	server.exe
696	server.exe
696	server.exe
696	server.exe
696	server.exe
696	server.exe
696	server.exe
696	server.exe
696	server.exe
696	server.exe
696	server.exe
696	server.exe
696	server.exe
696	server.exe
696	server.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
696	server.exe

Suspicious use of AdjustPrivilegeToken 35 IoCs

description	pid	Process
Token: SeDebugPrivilege	696	server.exe
Token: 33	696	server.exe
Token: SeIncBasePriorityPrivilege	696	server.exe
Token: 33	696	server.exe
Token: SeIncBasePriorityPrivilege	696	server.exe
Token: 33	696	server.exe
Token: SeIncBasePriorityPrivilege	696	server.exe
Token: 33	696	server.exe
Token: SeIncBasePriorityPrivilege	696	server.exe
Token: 33	696	server.exe
Token: SeIncBasePriorityPrivilege	696	server.exe
Token: 33	696	server.exe
Token: SeIncBasePriorityPrivilege	696	server.exe
Token: 33	696	server.exe
Token: SeIncBasePriorityPrivilege	696	server.exe
Token: 33	696	server.exe
Token: SeIncBasePriorityPrivilege	696	server.exe
Token: 33	696	server.exe
Token: SeIncBasePriorityPrivilege	696	server.exe
Token: 33	696	server.exe
Token: SeIncBasePriorityPrivilege	696	server.exe
Token: 33	696	server.exe
Token: SeIncBasePriorityPrivilege	696	server.exe
Token: 33	696	server.exe
Token: SeIncBasePriorityPrivilege	696	server.exe
Token: 33	696	server.exe
Token: SeIncBasePriorityPrivilege	696	server.exe
Token: 33	696	server.exe
Token: SeIncBasePriorityPrivilege	696	server.exe
Token: 33	696	server.exe
Token: SeIncBasePriorityPrivilege	696	server.exe
Token: 33	696	server.exe
Token: SeIncBasePriorityPrivilege	696	server.exe
Token: 33	696	server.exe
Token: SeIncBasePriorityPrivilege	696	server.exe

Suspicious use of WriteProcessMemory 16 IoCs

description	pid	Process	procid_target
PID 976 wrote to memory of 696	976	Server.exe	31
PID 976 wrote to memory of 696	976	Server.exe	31
PID 976 wrote to memory of 696	976	Server.exe	31
PID 976 wrote to memory of 696	976	Server.exe	31
PID 696 wrote to memory of 564	696	server.exe	32
PID 696 wrote to memory of 564	696	server.exe	32
PID 696 wrote to memory of 564	696	server.exe	32
PID 696 wrote to memory of 564	696	server.exe	32
PID 696 wrote to memory of 2964	696	server.exe	34
PID 696 wrote to memory of 2964	696	server.exe	34
PID 696 wrote to memory of 2964	696	server.exe	34
PID 696 wrote to memory of 2964	696	server.exe	34
PID 696 wrote to memory of 2752	696	server.exe	35
PID 696 wrote to memory of 2752	696	server.exe	35
PID 696 wrote to memory of 2752	696	server.exe	35
PID 696 wrote to memory of 2752	696	server.exe	35

C:\Users\Admin\AppData\Local\Temp\Server.exe
"C:\Users\Admin\AppData\Local\Temp\Server.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:976
- C:\ProgramData\server.exe
  "C:\ProgramData\server.exe"
  2⤵
  - Drops startup file
  - Executes dropped EXE
  - Drops autorun.inf file
  - Drops file in System32 directory
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: GetForegroundWindowSpam
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:696
- - C:\Windows\SysWOW64\netsh.exe
    netsh firewall add allowedprogram "C:\ProgramData\server.exe" "server.exe" ENABLE
    3⤵
    - Modifies Windows Firewall
    - Event Triggered Execution: Netsh Helper DLL
    - System Location Discovery: System Language Discovery
    PID:564
- - C:\Windows\SysWOW64\netsh.exe
    netsh firewall delete allowedprogram "C:\ProgramData\server.exe"
    3⤵
    - Modifies Windows Firewall
    - Event Triggered Execution: Netsh Helper DLL
    - System Location Discovery: System Language Discovery
    PID:2964
- - C:\Windows\SysWOW64\netsh.exe
    netsh firewall add allowedprogram "C:\ProgramData\server.exe" "server.exe" ENABLE
    3⤵
    - Modifies Windows Firewall
    - Event Triggered Execution: Netsh Helper DLL
    - System Location Discovery: System Language Discovery
    PID:2752

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Replication Through Removable Media

T1091

Execution

Persistence

Create or Modify System Process

T1543

Windows Service

T1543.003

Event Triggered Execution

T1546

Netsh Helper DLL

T1546.007

Privilege Escalation

Create or Modify System Process

T1543

Windows Service

T1543.003

Event Triggered Execution

T1546

Netsh Helper DLL

T1546.007

Defense Evasion

Impair Defenses

T1562

Disable or Modify System Firewall

T1562.004

Credential Access

Discovery

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Replication Through Removable Media

T1091

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Roaming\app

Filesize
5B

MD5
cac4598fdc0f92181616d12833eb6ca1

SHA1
80a7b7a46a0e8e674b782b9eb569e5430a69c84b

SHA256
275918973c23ad700f278c69cc03c9c82ec9f4d9ed0f53111ad22bec197ff440

SHA512
01a7556bfcce6d9d8251aadc7f6e6169fdd0477d487ce88729c44bfe8b85b2eee500985d553c0479765ef5b5c6dc3517c0305efb9089814c3f8a9ea6fc51c713

Download Submit
\ProgramData\server.exe

Filesize
93KB

MD5
3715d6ae97ccefef54ecc91e874aea8c

SHA1
4a690c46ffa912deb60359655a021a297fb41383

SHA256
f04597d7204b14de98b22b9495e5bbc25701b51bc7e8878a8ac0d4fc5a123c23

SHA512
4eb40bde8bac03010bbcacc75a61d2734a64690dfc0f5c179f4ce4311ecbc545164390307c4243b507c035db1e003cbd09bc5c38126cd078a644cfd99bf6918b

Download Submit
memory/696-15-0x0000000074F90000-0x000000007553B000-memory.dmp

Filesize
5.7MB

Download
memory/696-16-0x0000000074F90000-0x000000007553B000-memory.dmp

Filesize
5.7MB

Download
memory/696-54-0x0000000074F90000-0x000000007553B000-memory.dmp

Filesize
5.7MB

Download
memory/696-53-0x0000000074F90000-0x000000007553B000-memory.dmp

Filesize
5.7MB

Download
memory/696-52-0x0000000074F90000-0x000000007553B000-memory.dmp

Filesize
5.7MB

Download
memory/976-0-0x0000000074F91000-0x0000000074F92000-memory.dmp

Filesize
4KB

Download
memory/976-1-0x0000000074F90000-0x000000007553B000-memory.dmp

Filesize
5.7MB

Download
memory/976-2-0x0000000074F90000-0x000000007553B000-memory.dmp

Filesize
5.7MB

Download
memory/976-14-0x0000000074F90000-0x000000007553B000-memory.dmp

Filesize
5.7MB

Download