njrat | e8561a2b79ca2be47a6d67e1ea56c05bba0bb82ceada5171b960b4041e98015a

Analysis

max time kernel
150s
max time network
123s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
14-11-2024 03:47

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General

Target

e8561a2b79ca2be47a6d67e1ea56c05bba0bb82ceada5171b960b4041e98015a.exe
Size

93KB
MD5

d7526430b723e5b9b90defdb347897d4
SHA1

00c6e39049ebbae9718f16ec6e12c6ddcff15ac3
SHA256

e8561a2b79ca2be47a6d67e1ea56c05bba0bb82ceada5171b960b4041e98015a
SHA512

3efa57f9ef73e6349c728406157dcd6b420910e6c41c5e4c4d6460f9c12dbe497dce2ee1a82de118f78c997e579596be8de7ec3d66df20622e036c43ede18afe
SSDEEP

768:hY3EcnD9O/pBcxYsbae6GIXb9pDX2t98PL0OXLeuXxrjEtCdnl2pi1Rz4Rk3+sGV:fcxOx6baIa9RZj00ljEwzGi1dDaDxgS

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

127.0.0.1:6666

Mutex

8a3cf8914d8cac12109f94013603d456

Attributes

reg_key
8a3cf8914d8cac12109f94013603d456
splitter
|'|'|

Signatures

Njrat family
njrat
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
2704	netsh.exe

Drops startup file 2 IoCs

description	ioc	Process
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

Executes dropped EXE 1 IoCs

pid	Process
2744	server.exe

Loads dropped DLL 2 IoCs

pid	Process
3028	e8561a2b79ca2be47a6d67e1ea56c05bba0bb82ceada5171b960b4041e98015a.exe
3028	e8561a2b79ca2be47a6d67e1ea56c05bba0bb82ceada5171b960b4041e98015a.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

Drops file in Program Files directory 2 IoCs

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

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	e8561a2b79ca2be47a6d67e1ea56c05bba0bb82ceada5171b960b4041e98015a.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	server.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
2744	server.exe
2744	server.exe
2744	server.exe
2744	server.exe
2744	server.exe
2744	server.exe
2744	server.exe
2744	server.exe
2744	server.exe
2744	server.exe
2744	server.exe
2744	server.exe
2744	server.exe
2744	server.exe
2744	server.exe
2744	server.exe
2744	server.exe
2744	server.exe
2744	server.exe
2744	server.exe
2744	server.exe
2744	server.exe
2744	server.exe
2744	server.exe
2744	server.exe
2744	server.exe
2744	server.exe
2744	server.exe
2744	server.exe
2744	server.exe
2744	server.exe
2744	server.exe
2744	server.exe
2744	server.exe
2744	server.exe
2744	server.exe
2744	server.exe
2744	server.exe
2744	server.exe
2744	server.exe
2744	server.exe
2744	server.exe
2744	server.exe
2744	server.exe
2744	server.exe
2744	server.exe
2744	server.exe
2744	server.exe
2744	server.exe
2744	server.exe
2744	server.exe
2744	server.exe
2744	server.exe
2744	server.exe
2744	server.exe
2744	server.exe
2744	server.exe
2744	server.exe
2744	server.exe
2744	server.exe
2744	server.exe
2744	server.exe
2744	server.exe
2744	server.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2744	server.exe

Suspicious use of AdjustPrivilegeToken 35 IoCs

description	pid	Process
Token: SeDebugPrivilege	2744	server.exe
Token: 33	2744	server.exe
Token: SeIncBasePriorityPrivilege	2744	server.exe
Token: 33	2744	server.exe
Token: SeIncBasePriorityPrivilege	2744	server.exe
Token: 33	2744	server.exe
Token: SeIncBasePriorityPrivilege	2744	server.exe
Token: 33	2744	server.exe
Token: SeIncBasePriorityPrivilege	2744	server.exe
Token: 33	2744	server.exe
Token: SeIncBasePriorityPrivilege	2744	server.exe
Token: 33	2744	server.exe
Token: SeIncBasePriorityPrivilege	2744	server.exe
Token: 33	2744	server.exe
Token: SeIncBasePriorityPrivilege	2744	server.exe
Token: 33	2744	server.exe
Token: SeIncBasePriorityPrivilege	2744	server.exe
Token: 33	2744	server.exe
Token: SeIncBasePriorityPrivilege	2744	server.exe
Token: 33	2744	server.exe
Token: SeIncBasePriorityPrivilege	2744	server.exe
Token: 33	2744	server.exe
Token: SeIncBasePriorityPrivilege	2744	server.exe
Token: 33	2744	server.exe
Token: SeIncBasePriorityPrivilege	2744	server.exe
Token: 33	2744	server.exe
Token: SeIncBasePriorityPrivilege	2744	server.exe
Token: 33	2744	server.exe
Token: SeIncBasePriorityPrivilege	2744	server.exe
Token: 33	2744	server.exe
Token: SeIncBasePriorityPrivilege	2744	server.exe
Token: 33	2744	server.exe
Token: SeIncBasePriorityPrivilege	2744	server.exe
Token: 33	2744	server.exe
Token: SeIncBasePriorityPrivilege	2744	server.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 3028 wrote to memory of 2744	3028	e8561a2b79ca2be47a6d67e1ea56c05bba0bb82ceada5171b960b4041e98015a.exe	30
PID 3028 wrote to memory of 2744	3028	e8561a2b79ca2be47a6d67e1ea56c05bba0bb82ceada5171b960b4041e98015a.exe	30
PID 3028 wrote to memory of 2744	3028	e8561a2b79ca2be47a6d67e1ea56c05bba0bb82ceada5171b960b4041e98015a.exe	30
PID 3028 wrote to memory of 2744	3028	e8561a2b79ca2be47a6d67e1ea56c05bba0bb82ceada5171b960b4041e98015a.exe	30
PID 2744 wrote to memory of 2704	2744	server.exe	31
PID 2744 wrote to memory of 2704	2744	server.exe	31
PID 2744 wrote to memory of 2704	2744	server.exe	31
PID 2744 wrote to memory of 2704	2744	server.exe	31

C:\Users\Admin\AppData\Local\Temp\e8561a2b79ca2be47a6d67e1ea56c05bba0bb82ceada5171b960b4041e98015a.exe
"C:\Users\Admin\AppData\Local\Temp\e8561a2b79ca2be47a6d67e1ea56c05bba0bb82ceada5171b960b4041e98015a.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3028
- C:\Users\Admin\AppData\Local\Temp\server.exe
  "C:\Users\Admin\AppData\Local\Temp\server.exe"
  2⤵
  - Drops startup file
  - Executes dropped EXE
  - Drops autorun.inf file
  - 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:2744
- - 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:2704

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 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\Local\Temp\server.exe

Filesize
93KB

MD5
d7526430b723e5b9b90defdb347897d4

SHA1
00c6e39049ebbae9718f16ec6e12c6ddcff15ac3

SHA256
e8561a2b79ca2be47a6d67e1ea56c05bba0bb82ceada5171b960b4041e98015a

SHA512
3efa57f9ef73e6349c728406157dcd6b420910e6c41c5e4c4d6460f9c12dbe497dce2ee1a82de118f78c997e579596be8de7ec3d66df20622e036c43ede18afe

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

Filesize
5B

MD5
8f11404a507cfb98455f89a534077f73

SHA1
0716c668f504450353527aff1a6457b8348cf435

SHA256
f7c301f3fcce1c2444b540090e5024f0cea1806ab8ae1d81901ecc3b63334cbb

SHA512
85403dd06da5851e8c4d727ca8d87cc0e7ff4974942ec22123366684ed0e51b543a29b6d2521e2e65784c69884fde8d711e5064f104b098293fcd18c44769492

Download Submit
memory/2744-15-0x0000000073E50000-0x00000000743FB000-memory.dmp

Filesize
5.7MB

Download
memory/2744-16-0x0000000073E50000-0x00000000743FB000-memory.dmp

Filesize
5.7MB

Download
memory/2744-47-0x0000000073E50000-0x00000000743FB000-memory.dmp

Filesize
5.7MB

Download
memory/3028-0-0x0000000073E51000-0x0000000073E52000-memory.dmp

Filesize
4KB

Download
memory/3028-1-0x0000000073E50000-0x00000000743FB000-memory.dmp

Filesize
5.7MB

Download
memory/3028-2-0x0000000073E50000-0x00000000743FB000-memory.dmp

Filesize
5.7MB

Download
memory/3028-14-0x0000000073E50000-0x00000000743FB000-memory.dmp

Filesize
5.7MB

Download