njrat | 188ba2b83622d600b04003888d1aca9d50f3ce87406dfcf328895db6c489a26f

Analysis

max time kernel
150s
max time network
148s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
27-12-2024 01:14

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General

Target

ef022f571bbe78532cc1d1d09689470933f629f5e3775929f8926d7b51e6f122.exe
Size

93KB
MD5

4951d592fac59ef8005596d2af5d116b
SHA1

536ab7195afefb6c8947a86b10adb8d0461f7115
SHA256

ef022f571bbe78532cc1d1d09689470933f629f5e3775929f8926d7b51e6f122
SHA512

3f551f1b653764dae9d75dbdf764389786a6004ef2c49f3c7ba81bb4412adc7c8c3315649e4c5a8f970b3f185f67e6f04bacf1264f233225511d45cb75d20ff1
SSDEEP

1536:ZYduiuNTXfL/AJbZNljEwzGi1dDFDugS:ZYdaTXfL/AhzSi1dJT

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

company-telecom.gl.at.ply.gg:42876

Mutex

445c7762b8f06a76352fcac2e22df159

Attributes

reg_key
445c7762b8f06a76352fcac2e22df159
splitter
|'|'|

Signatures

Njrat family
njrat
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
2688	netsh.exe
3008	netsh.exe
3020	netsh.exe

Drops startup file 6 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Microsoft Corporation.exe	server.exe
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\445c7762b8f06a76352fcac2e22df159Windows Update.exe	server.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\445c7762b8f06a76352fcac2e22df159Windows Update.exe	server.exe
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\DeadMom.exe	server.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\DeadMom.exe	server.exe

Executes dropped EXE 1 IoCs

pid	Process
2732	server.exe

Drops file in System32 directory 2 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\DeadMom.exe	server.exe
File opened for modification	C:\Windows\SysWOW64\DeadMom.exe	server.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\server.exe	ef022f571bbe78532cc1d1d09689470933f629f5e3775929f8926d7b51e6f122.exe
File opened for modification	C:\Windows\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 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 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 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 value enumerated	\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 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	ef022f571bbe78532cc1d1d09689470933f629f5e3775929f8926d7b51e6f122.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
2732	server.exe
2732	server.exe
2732	server.exe
2732	server.exe
2732	server.exe
2732	server.exe
2732	server.exe
2732	server.exe
2732	server.exe
2732	server.exe
2732	server.exe
2732	server.exe
2732	server.exe
2732	server.exe
2732	server.exe
2732	server.exe
2732	server.exe
2732	server.exe
2732	server.exe
2732	server.exe
2732	server.exe
2732	server.exe
2732	server.exe
2732	server.exe
2732	server.exe
2732	server.exe
2732	server.exe
2732	server.exe
2732	server.exe
2732	server.exe
2732	server.exe
2732	server.exe
2732	server.exe
2732	server.exe
2732	server.exe
2732	server.exe
2732	server.exe
2732	server.exe
2732	server.exe
2732	server.exe
2732	server.exe
2732	server.exe
2732	server.exe
2732	server.exe
2732	server.exe
2732	server.exe
2732	server.exe
2732	server.exe
2732	server.exe
2732	server.exe
2732	server.exe
2732	server.exe
2732	server.exe
2732	server.exe
2732	server.exe
2732	server.exe
2732	server.exe
2732	server.exe
2732	server.exe
2732	server.exe
2732	server.exe
2732	server.exe
2732	server.exe
2732	server.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2732	server.exe

Suspicious use of AdjustPrivilegeToken 37 IoCs

description	pid	Process
Token: SeDebugPrivilege	2732	server.exe
Token: 33	2732	server.exe
Token: SeIncBasePriorityPrivilege	2732	server.exe
Token: 33	2732	server.exe
Token: SeIncBasePriorityPrivilege	2732	server.exe
Token: 33	2732	server.exe
Token: SeIncBasePriorityPrivilege	2732	server.exe
Token: 33	2732	server.exe
Token: SeIncBasePriorityPrivilege	2732	server.exe
Token: 33	2732	server.exe
Token: SeIncBasePriorityPrivilege	2732	server.exe
Token: 33	2732	server.exe
Token: SeIncBasePriorityPrivilege	2732	server.exe
Token: 33	2732	server.exe
Token: SeIncBasePriorityPrivilege	2732	server.exe
Token: 33	2732	server.exe
Token: SeIncBasePriorityPrivilege	2732	server.exe
Token: 33	2732	server.exe
Token: SeIncBasePriorityPrivilege	2732	server.exe
Token: 33	2732	server.exe
Token: SeIncBasePriorityPrivilege	2732	server.exe
Token: 33	2732	server.exe
Token: SeIncBasePriorityPrivilege	2732	server.exe
Token: 33	2732	server.exe
Token: SeIncBasePriorityPrivilege	2732	server.exe
Token: 33	2732	server.exe
Token: SeIncBasePriorityPrivilege	2732	server.exe
Token: 33	2732	server.exe
Token: SeIncBasePriorityPrivilege	2732	server.exe
Token: 33	2732	server.exe
Token: SeIncBasePriorityPrivilege	2732	server.exe
Token: 33	2732	server.exe
Token: SeIncBasePriorityPrivilege	2732	server.exe
Token: 33	2732	server.exe
Token: SeIncBasePriorityPrivilege	2732	server.exe
Token: 33	2732	server.exe
Token: SeIncBasePriorityPrivilege	2732	server.exe

Suspicious use of WriteProcessMemory 16 IoCs

description	pid	Process	procid_target
PID 2400 wrote to memory of 2732	2400	ef022f571bbe78532cc1d1d09689470933f629f5e3775929f8926d7b51e6f122.exe	30
PID 2400 wrote to memory of 2732	2400	ef022f571bbe78532cc1d1d09689470933f629f5e3775929f8926d7b51e6f122.exe	30
PID 2400 wrote to memory of 2732	2400	ef022f571bbe78532cc1d1d09689470933f629f5e3775929f8926d7b51e6f122.exe	30
PID 2400 wrote to memory of 2732	2400	ef022f571bbe78532cc1d1d09689470933f629f5e3775929f8926d7b51e6f122.exe	30
PID 2732 wrote to memory of 2688	2732	server.exe	31
PID 2732 wrote to memory of 2688	2732	server.exe	31
PID 2732 wrote to memory of 2688	2732	server.exe	31
PID 2732 wrote to memory of 2688	2732	server.exe	31
PID 2732 wrote to memory of 3008	2732	server.exe	33
PID 2732 wrote to memory of 3008	2732	server.exe	33
PID 2732 wrote to memory of 3008	2732	server.exe	33
PID 2732 wrote to memory of 3008	2732	server.exe	33
PID 2732 wrote to memory of 3020	2732	server.exe	34
PID 2732 wrote to memory of 3020	2732	server.exe	34
PID 2732 wrote to memory of 3020	2732	server.exe	34
PID 2732 wrote to memory of 3020	2732	server.exe	34

C:\Users\Admin\AppData\Local\Temp\ef022f571bbe78532cc1d1d09689470933f629f5e3775929f8926d7b51e6f122.exe
"C:\Users\Admin\AppData\Local\Temp\ef022f571bbe78532cc1d1d09689470933f629f5e3775929f8926d7b51e6f122.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2400
- C:\Windows\server.exe
  "C:\Windows\server.exe"
  2⤵
  - Drops startup file
  - Executes dropped EXE
  - Drops file in System32 directory
  - Drops file in Windows directory
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: GetForegroundWindowSpam
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2732
- - C:\Windows\SysWOW64\netsh.exe
    netsh firewall add allowedprogram "C:\Windows\server.exe" "server.exe" ENABLE
    3⤵
    - Modifies Windows Firewall
    - Event Triggered Execution: Netsh Helper DLL
    - System Location Discovery: System Language Discovery
    PID:2688
- - C:\Windows\SysWOW64\netsh.exe
    netsh firewall delete allowedprogram "C:\Windows\server.exe"
    3⤵
    - Modifies Windows Firewall
    - Event Triggered Execution: Netsh Helper DLL
    - System Location Discovery: System Language Discovery
    PID:3008
- - C:\Windows\SysWOW64\netsh.exe
    netsh firewall add allowedprogram "C:\Windows\server.exe" "server.exe" ENABLE
    3⤵
    - Modifies Windows Firewall
    - Event Triggered Execution: Netsh Helper DLL
    - System Location Discovery: System Language Discovery
    PID:3020

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

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

Collection

Command and Control

Exfiltration

Impact

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Downloads

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

Filesize
5B

MD5
c60feebd511c87b86dea130692995a0f

SHA1
d64447a8b3d8949cab5a1f8d168f7c6fee6b6a0a

SHA256
632994320c04707e7ef564b3e983a694170561659552a24dfe14a922dcf0f511

SHA512
bf03fbf3329c6f7a21ecd620319ef1a6f676b22a27afd24aab546483c3fe5f6eee7bbcfdc14c5f6626957f2b96519bdd21aaea45d74a80253fa4220c8c12df7c

Download Submit
C:\Windows\server.exe

Filesize
93KB

MD5
4951d592fac59ef8005596d2af5d116b

SHA1
536ab7195afefb6c8947a86b10adb8d0461f7115

SHA256
ef022f571bbe78532cc1d1d09689470933f629f5e3775929f8926d7b51e6f122

SHA512
3f551f1b653764dae9d75dbdf764389786a6004ef2c49f3c7ba81bb4412adc7c8c3315649e4c5a8f970b3f185f67e6f04bacf1264f233225511d45cb75d20ff1

Download Submit
memory/2400-0-0x0000000074B41000-0x0000000074B42000-memory.dmp

Filesize
4KB

Download
memory/2400-1-0x0000000074B40000-0x00000000750EB000-memory.dmp

Filesize
5.7MB

Download
memory/2400-2-0x0000000074B40000-0x00000000750EB000-memory.dmp

Filesize
5.7MB

Download
memory/2400-13-0x0000000074B40000-0x00000000750EB000-memory.dmp

Filesize
5.7MB

Download
memory/2732-12-0x0000000074B40000-0x00000000750EB000-memory.dmp

Filesize
5.7MB

Download
memory/2732-14-0x0000000074B40000-0x00000000750EB000-memory.dmp

Filesize
5.7MB

Download
memory/2732-38-0x0000000074B40000-0x00000000750EB000-memory.dmp

Filesize
5.7MB

Download