njrat | f9dfaeff5fd22709b5cd29cb23c6f7c81f392f3a2d88c2bcf09fb4b599fb6f30

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
17-10-2024 18:03

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General

Target

f9dfaeff5fd22709b5cd29cb23c6f7c81f392f3a2d88c2bcf09fb4b599fb6f30.exe
Size

93KB
MD5

97266b25a791e68493ea2563306c7cf0
SHA1

d161fff47235e7d60209b6feae74019e6d000297
SHA256

f9dfaeff5fd22709b5cd29cb23c6f7c81f392f3a2d88c2bcf09fb4b599fb6f30
SHA512

9eac60682d5ce4398dfd45449fde4272cba942fa01afe7034ef0b1393605f7a65997a52c9ae960d87d973dab1c9c2f0dfa339ae921470664f241a71cc9d82d09
SSDEEP

1536:cumC+xhUa9urgOB9mNvM4jEwzGi1dDZDLgS:cugUa9urgOidGi1dtE

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

susiahat24199a.ddns.net:5552

Mutex

a8f08fa23dbc544d76787e679872404a

Attributes

reg_key
a8f08fa23dbc544d76787e679872404a
splitter
|'|'|

Signatures

njRAT/Bladabindi
Widely used RAT written in .NET.
trojan njrat

Modifies Windows Firewall 2 TTPs 3 IoCs

evasion

Windows Service

T1543.003

Disable or Modify System Firewall

T1562.004

pid	Process
2668	netsh.exe
2552	netsh.exe
2568	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\a8f08fa23dbc544d76787e679872404aWindows Update.exe	server.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\a8f08fa23dbc544d76787e679872404aWindows Update.exe	server.exe
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Explorer.exe	server.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Explorer.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
2288	server.exe

Loads dropped DLL 2 IoCs

pid	Process
2080	f9dfaeff5fd22709b5cd29cb23c6f7c81f392f3a2d88c2bcf09fb4b599fb6f30.exe
2080	f9dfaeff5fd22709b5cd29cb23c6f7c81f392f3a2d88c2bcf09fb4b599fb6f30.exe

Drops file in System32 directory 1 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\Explorer.exe	server.exe

Drops file in Program Files directory 2 IoCs

description	ioc	Process
File created	C:\Program Files (x86)\Explorer.exe	server.exe
File opened for modification	C:\Program Files (x86)\Explorer.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 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 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	f9dfaeff5fd22709b5cd29cb23c6f7c81f392f3a2d88c2bcf09fb4b599fb6f30.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
2288	server.exe
2288	server.exe
2288	server.exe
2288	server.exe
2288	server.exe
2288	server.exe
2288	server.exe
2288	server.exe
2288	server.exe
2288	server.exe
2288	server.exe
2288	server.exe
2288	server.exe
2288	server.exe
2288	server.exe
2288	server.exe
2288	server.exe
2288	server.exe
2288	server.exe
2288	server.exe
2288	server.exe
2288	server.exe
2288	server.exe
2288	server.exe
2288	server.exe
2288	server.exe
2288	server.exe
2288	server.exe
2288	server.exe
2288	server.exe
2288	server.exe
2288	server.exe
2288	server.exe
2288	server.exe
2288	server.exe
2288	server.exe
2288	server.exe
2288	server.exe
2288	server.exe
2288	server.exe
2288	server.exe
2288	server.exe
2288	server.exe
2288	server.exe
2288	server.exe
2288	server.exe
2288	server.exe
2288	server.exe
2288	server.exe
2288	server.exe
2288	server.exe
2288	server.exe
2288	server.exe
2288	server.exe
2288	server.exe
2288	server.exe
2288	server.exe
2288	server.exe
2288	server.exe
2288	server.exe
2288	server.exe
2288	server.exe
2288	server.exe
2288	server.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2288	server.exe

Suspicious use of AdjustPrivilegeToken 37 IoCs

description	pid	Process
Token: SeDebugPrivilege	2288	server.exe
Token: 33	2288	server.exe
Token: SeIncBasePriorityPrivilege	2288	server.exe
Token: 33	2288	server.exe
Token: SeIncBasePriorityPrivilege	2288	server.exe
Token: 33	2288	server.exe
Token: SeIncBasePriorityPrivilege	2288	server.exe
Token: 33	2288	server.exe
Token: SeIncBasePriorityPrivilege	2288	server.exe
Token: 33	2288	server.exe
Token: SeIncBasePriorityPrivilege	2288	server.exe
Token: 33	2288	server.exe
Token: SeIncBasePriorityPrivilege	2288	server.exe
Token: 33	2288	server.exe
Token: SeIncBasePriorityPrivilege	2288	server.exe
Token: 33	2288	server.exe
Token: SeIncBasePriorityPrivilege	2288	server.exe
Token: 33	2288	server.exe
Token: SeIncBasePriorityPrivilege	2288	server.exe
Token: 33	2288	server.exe
Token: SeIncBasePriorityPrivilege	2288	server.exe
Token: 33	2288	server.exe
Token: SeIncBasePriorityPrivilege	2288	server.exe
Token: 33	2288	server.exe
Token: SeIncBasePriorityPrivilege	2288	server.exe
Token: 33	2288	server.exe
Token: SeIncBasePriorityPrivilege	2288	server.exe
Token: 33	2288	server.exe
Token: SeIncBasePriorityPrivilege	2288	server.exe
Token: 33	2288	server.exe
Token: SeIncBasePriorityPrivilege	2288	server.exe
Token: 33	2288	server.exe
Token: SeIncBasePriorityPrivilege	2288	server.exe
Token: 33	2288	server.exe
Token: SeIncBasePriorityPrivilege	2288	server.exe
Token: 33	2288	server.exe
Token: SeIncBasePriorityPrivilege	2288	server.exe

Suspicious use of WriteProcessMemory 16 IoCs

description	pid	Process	procid_target
PID 2080 wrote to memory of 2288	2080	f9dfaeff5fd22709b5cd29cb23c6f7c81f392f3a2d88c2bcf09fb4b599fb6f30.exe	31
PID 2080 wrote to memory of 2288	2080	f9dfaeff5fd22709b5cd29cb23c6f7c81f392f3a2d88c2bcf09fb4b599fb6f30.exe	31
PID 2080 wrote to memory of 2288	2080	f9dfaeff5fd22709b5cd29cb23c6f7c81f392f3a2d88c2bcf09fb4b599fb6f30.exe	31
PID 2080 wrote to memory of 2288	2080	f9dfaeff5fd22709b5cd29cb23c6f7c81f392f3a2d88c2bcf09fb4b599fb6f30.exe	31
PID 2288 wrote to memory of 2668	2288	server.exe	32
PID 2288 wrote to memory of 2668	2288	server.exe	32
PID 2288 wrote to memory of 2668	2288	server.exe	32
PID 2288 wrote to memory of 2668	2288	server.exe	32
PID 2288 wrote to memory of 2552	2288	server.exe	34
PID 2288 wrote to memory of 2552	2288	server.exe	34
PID 2288 wrote to memory of 2552	2288	server.exe	34
PID 2288 wrote to memory of 2552	2288	server.exe	34
PID 2288 wrote to memory of 2568	2288	server.exe	35
PID 2288 wrote to memory of 2568	2288	server.exe	35
PID 2288 wrote to memory of 2568	2288	server.exe	35
PID 2288 wrote to memory of 2568	2288	server.exe	35

C:\Users\Admin\AppData\Local\Temp\f9dfaeff5fd22709b5cd29cb23c6f7c81f392f3a2d88c2bcf09fb4b599fb6f30.exe
"C:\Users\Admin\AppData\Local\Temp\f9dfaeff5fd22709b5cd29cb23c6f7c81f392f3a2d88c2bcf09fb4b599fb6f30.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2080
- C:\Users\Admin\AppData\Local\Temp\server.exe
  "C:\Users\Admin\AppData\Local\Temp\server.exe"
  2⤵
  - Drops startup file
  - Executes dropped EXE
  - Drops file in System32 directory
  - Drops file in Program Files directory
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: GetForegroundWindowSpam
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2288
- - C:\Windows\SysWOW64\netsh.exe
    netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\server.exe" "server.exe" ENABLE
    3⤵
    - Modifies Windows Firewall
    - Event Triggered Execution: Netsh Helper DLL
    - System Location Discovery: System Language Discovery
    PID:2668
- - C:\Windows\SysWOW64\netsh.exe
    netsh firewall delete allowedprogram "C:\Users\Admin\AppData\Local\Temp\server.exe"
    3⤵
    - Modifies Windows Firewall
    - Event Triggered Execution: Netsh Helper DLL
    - System Location Discovery: System Language Discovery
    PID:2552
- - C:\Windows\SysWOW64\netsh.exe
    netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\server.exe" "server.exe" ENABLE
    3⤵
    - Modifies Windows Firewall
    - Event Triggered Execution: Netsh Helper DLL
    - System Location Discovery: System Language Discovery
    PID:2568

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
69cf10399d0d1350c3698099796624cb

SHA1
d0b58b76ff065f51172971853a7da414286d9ea7

SHA256
a7bff94c7cdef50b67a3bab142ebcec4d360491e339581c41f433fec6d002f48

SHA512
5e1c9745b2b529c026e51fbff7fd4e1e0bd208c705b7da830459758d28c01b32b9bc93caa7ad60228d3e785784023d8a739fda0dab62d3c76770ea84c257f1f7

Download Submit
\Users\Admin\AppData\Local\Temp\server.exe

Filesize
93KB

MD5
97266b25a791e68493ea2563306c7cf0

SHA1
d161fff47235e7d60209b6feae74019e6d000297

SHA256
f9dfaeff5fd22709b5cd29cb23c6f7c81f392f3a2d88c2bcf09fb4b599fb6f30

SHA512
9eac60682d5ce4398dfd45449fde4272cba942fa01afe7034ef0b1393605f7a65997a52c9ae960d87d973dab1c9c2f0dfa339ae921470664f241a71cc9d82d09

Download Submit
memory/2080-0-0x0000000074221000-0x0000000074222000-memory.dmp

Filesize
4KB

Download
memory/2080-1-0x0000000074220000-0x00000000747CB000-memory.dmp

Filesize
5.7MB

Download
memory/2080-2-0x0000000074220000-0x00000000747CB000-memory.dmp

Filesize
5.7MB

Download
memory/2080-15-0x0000000074220000-0x00000000747CB000-memory.dmp

Filesize
5.7MB

Download
memory/2288-14-0x0000000074220000-0x00000000747CB000-memory.dmp

Filesize
5.7MB

Download
memory/2288-16-0x0000000074220000-0x00000000747CB000-memory.dmp

Filesize
5.7MB

Download
memory/2288-45-0x0000000074220000-0x00000000747CB000-memory.dmp

Filesize
5.7MB

Download
memory/2288-46-0x0000000074220000-0x00000000747CB000-memory.dmp

Filesize
5.7MB

Download