njrat | ef022f571bbe78532cc1d1d09689470933f629f5e3775929f8926d7b51e6f122

Analysis

max time kernel
150s
max time network
149s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
25-12-2024 18:26

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General

Target

4951d592fac59ef8005596d2af5d116b.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
864	netsh.exe
2624	netsh.exe
1040	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
2600	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	4951d592fac59ef8005596d2af5d116b.exe
File opened for modification	C:\Windows\server.exe	server.exe

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 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
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 queried	\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 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	4951d592fac59ef8005596d2af5d116b.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	server.exe
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	netsh.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
2600	server.exe
2600	server.exe
2600	server.exe
2600	server.exe
2600	server.exe
2600	server.exe
2600	server.exe
2600	server.exe
2600	server.exe
2600	server.exe
2600	server.exe
2600	server.exe
2600	server.exe
2600	server.exe
2600	server.exe
2600	server.exe
2600	server.exe
2600	server.exe
2600	server.exe
2600	server.exe
2600	server.exe
2600	server.exe
2600	server.exe
2600	server.exe
2600	server.exe
2600	server.exe
2600	server.exe
2600	server.exe
2600	server.exe
2600	server.exe
2600	server.exe
2600	server.exe
2600	server.exe
2600	server.exe
2600	server.exe
2600	server.exe
2600	server.exe
2600	server.exe
2600	server.exe
2600	server.exe
2600	server.exe
2600	server.exe
2600	server.exe
2600	server.exe
2600	server.exe
2600	server.exe
2600	server.exe
2600	server.exe
2600	server.exe
2600	server.exe
2600	server.exe
2600	server.exe
2600	server.exe
2600	server.exe
2600	server.exe
2600	server.exe
2600	server.exe
2600	server.exe
2600	server.exe
2600	server.exe
2600	server.exe
2600	server.exe
2600	server.exe
2600	server.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2600	server.exe

Suspicious use of AdjustPrivilegeToken 37 IoCs

description	pid	Process
Token: SeDebugPrivilege	2600	server.exe
Token: 33	2600	server.exe
Token: SeIncBasePriorityPrivilege	2600	server.exe
Token: 33	2600	server.exe
Token: SeIncBasePriorityPrivilege	2600	server.exe
Token: 33	2600	server.exe
Token: SeIncBasePriorityPrivilege	2600	server.exe
Token: 33	2600	server.exe
Token: SeIncBasePriorityPrivilege	2600	server.exe
Token: 33	2600	server.exe
Token: SeIncBasePriorityPrivilege	2600	server.exe
Token: 33	2600	server.exe
Token: SeIncBasePriorityPrivilege	2600	server.exe
Token: 33	2600	server.exe
Token: SeIncBasePriorityPrivilege	2600	server.exe
Token: 33	2600	server.exe
Token: SeIncBasePriorityPrivilege	2600	server.exe
Token: 33	2600	server.exe
Token: SeIncBasePriorityPrivilege	2600	server.exe
Token: 33	2600	server.exe
Token: SeIncBasePriorityPrivilege	2600	server.exe
Token: 33	2600	server.exe
Token: SeIncBasePriorityPrivilege	2600	server.exe
Token: 33	2600	server.exe
Token: SeIncBasePriorityPrivilege	2600	server.exe
Token: 33	2600	server.exe
Token: SeIncBasePriorityPrivilege	2600	server.exe
Token: 33	2600	server.exe
Token: SeIncBasePriorityPrivilege	2600	server.exe
Token: 33	2600	server.exe
Token: SeIncBasePriorityPrivilege	2600	server.exe
Token: 33	2600	server.exe
Token: SeIncBasePriorityPrivilege	2600	server.exe
Token: 33	2600	server.exe
Token: SeIncBasePriorityPrivilege	2600	server.exe
Token: 33	2600	server.exe
Token: SeIncBasePriorityPrivilege	2600	server.exe

Suspicious use of WriteProcessMemory 16 IoCs

description	pid	Process	procid_target
PID 2728 wrote to memory of 2600	2728	4951d592fac59ef8005596d2af5d116b.exe	30
PID 2728 wrote to memory of 2600	2728	4951d592fac59ef8005596d2af5d116b.exe	30
PID 2728 wrote to memory of 2600	2728	4951d592fac59ef8005596d2af5d116b.exe	30
PID 2728 wrote to memory of 2600	2728	4951d592fac59ef8005596d2af5d116b.exe	30
PID 2600 wrote to memory of 2624	2600	server.exe	31
PID 2600 wrote to memory of 2624	2600	server.exe	31
PID 2600 wrote to memory of 2624	2600	server.exe	31
PID 2600 wrote to memory of 2624	2600	server.exe	31
PID 2600 wrote to memory of 1040	2600	server.exe	33
PID 2600 wrote to memory of 1040	2600	server.exe	33
PID 2600 wrote to memory of 1040	2600	server.exe	33
PID 2600 wrote to memory of 1040	2600	server.exe	33
PID 2600 wrote to memory of 864	2600	server.exe	34
PID 2600 wrote to memory of 864	2600	server.exe	34
PID 2600 wrote to memory of 864	2600	server.exe	34
PID 2600 wrote to memory of 864	2600	server.exe	34

C:\Users\Admin\AppData\Local\Temp\4951d592fac59ef8005596d2af5d116b.exe
"C:\Users\Admin\AppData\Local\Temp\4951d592fac59ef8005596d2af5d116b.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2728
- 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:2600
- - 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:2624
- - 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:1040
- - 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:864

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 Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

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

Filesize
5B

MD5
cac4598fdc0f92181616d12833eb6ca1

SHA1
80a7b7a46a0e8e674b782b9eb569e5430a69c84b

SHA256
275918973c23ad700f278c69cc03c9c82ec9f4d9ed0f53111ad22bec197ff440

SHA512
01a7556bfcce6d9d8251aadc7f6e6169fdd0477d487ce88729c44bfe8b85b2eee500985d553c0479765ef5b5c6dc3517c0305efb9089814c3f8a9ea6fc51c713

Download Submit
C:\Windows\server.exe

Filesize
93KB

MD5
4951d592fac59ef8005596d2af5d116b

SHA1
536ab7195afefb6c8947a86b10adb8d0461f7115

SHA256
ef022f571bbe78532cc1d1d09689470933f629f5e3775929f8926d7b51e6f122

SHA512
3f551f1b653764dae9d75dbdf764389786a6004ef2c49f3c7ba81bb4412adc7c8c3315649e4c5a8f970b3f185f67e6f04bacf1264f233225511d45cb75d20ff1

Download Submit
memory/2600-12-0x0000000074080000-0x000000007462B000-memory.dmp

Filesize
5.7MB

Download
memory/2600-37-0x0000000074080000-0x000000007462B000-memory.dmp

Filesize
5.7MB

Download
memory/2728-0-0x0000000074081000-0x0000000074082000-memory.dmp

Filesize
4KB

Download
memory/2728-2-0x0000000074080000-0x000000007462B000-memory.dmp

Filesize
5.7MB

Download
memory/2728-1-0x0000000074080000-0x000000007462B000-memory.dmp

Filesize
5.7MB

Download
memory/2728-13-0x0000000074080000-0x000000007462B000-memory.dmp

Filesize
5.7MB

Download