njrat | f52bdb3d24c155e723ebb13362792cd1733adfcbb29b994a497048dc6d9296a3

General

Target

f52bdb3d24c155e723ebb13362792cd1733adfcbb29b994a497048dc6d9296a3.exe
Size

37KB
MD5

31da8ae3d0c9133079dfc487944d9173
SHA1

f06095bab46e4619a72d444faaf48c6ff0460297
SHA256

f52bdb3d24c155e723ebb13362792cd1733adfcbb29b994a497048dc6d9296a3
SHA512

c1b22c19b1c42da7568d8b85fa8ccf8beebe32d270f78f7050cb4d847d46d98653941d40b017f9ad48923e9e4225fcce15e40e64f54fb9977ff39af90580f032
SSDEEP

384:6EG23hUidkGXR21cGMy8Pqq53tGFlymkirAF+rMRTyN/0L+EcoinblneHQM3epzD:HG23ZLGv8Pqq58imHrM+rMRa8Nuuot

Score

10^/10

njrat hacked discovery evasion persistence privilege_escalation trojan

Malware Config

Extracted

Family

njrat

Version

im523

Botnet

HacKed

C2

46.121.251.158:6666

Mutex

a254db2676bbd56fa67a1fb258b56c1a

Attributes

reg_key
a254db2676bbd56fa67a1fb258b56c1a
splitter
|'|'|

Signatures

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
2804	netsh.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\a254db2676bbd56fa67a1fb258b56c1a.exe	server.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\a254db2676bbd56fa67a1fb258b56c1a.exe	server.exe

Executes dropped EXE 1 IoCs

pid	Process
2288	server.exe

Loads dropped DLL 1 IoCs

pid	Process
2684	f52bdb3d24c155e723ebb13362792cd1733adfcbb29b994a497048dc6d9296a3.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-2703099537-420551529-3771253338-1000\Software\Microsoft\Windows\CurrentVersion\Run\a254db2676bbd56fa67a1fb258b56c1a = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\server.exe\" .."	server.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\a254db2676bbd56fa67a1fb258b56c1a = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\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 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	f52bdb3d24c155e723ebb13362792cd1733adfcbb29b994a497048dc6d9296a3.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	server.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe

Suspicious use of AdjustPrivilegeToken 35 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

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 2684 wrote to memory of 2288	2684	f52bdb3d24c155e723ebb13362792cd1733adfcbb29b994a497048dc6d9296a3.exe	30
PID 2684 wrote to memory of 2288	2684	f52bdb3d24c155e723ebb13362792cd1733adfcbb29b994a497048dc6d9296a3.exe	30
PID 2684 wrote to memory of 2288	2684	f52bdb3d24c155e723ebb13362792cd1733adfcbb29b994a497048dc6d9296a3.exe	30
PID 2684 wrote to memory of 2288	2684	f52bdb3d24c155e723ebb13362792cd1733adfcbb29b994a497048dc6d9296a3.exe	30
PID 2288 wrote to memory of 2804	2288	server.exe	31
PID 2288 wrote to memory of 2804	2288	server.exe	31
PID 2288 wrote to memory of 2804	2288	server.exe	31
PID 2288 wrote to memory of 2804	2288	server.exe	31

C:\Users\Admin\AppData\Local\Temp\f52bdb3d24c155e723ebb13362792cd1733adfcbb29b994a497048dc6d9296a3.exe
"C:\Users\Admin\AppData\Local\Temp\f52bdb3d24c155e723ebb13362792cd1733adfcbb29b994a497048dc6d9296a3.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2684
- C:\Users\Admin\AppData\Local\Temp\server.exe
  "C:\Users\Admin\AppData\Local\Temp\server.exe"
  2⤵
  - Drops startup file
  - Executes dropped EXE
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - 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:2804

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Create or Modify System Process

1

T1543

Windows Service

1

T1543.003

Event Triggered Execution

1

T1546

Netsh Helper DLL

1

T1546.007

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Create or Modify System Process

1

T1543

Windows Service

1

T1543.003

Event Triggered Execution

1

T1546

Netsh Helper DLL

1

T1546.007

Defense Evasion

Impair Defenses

1

T1562

Disable or Modify System Firewall

Modify Registry

Credential Access

Discovery

System Information Discovery

1

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

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

Filesize
37KB

MD5
31da8ae3d0c9133079dfc487944d9173

SHA1
f06095bab46e4619a72d444faaf48c6ff0460297

SHA256
f52bdb3d24c155e723ebb13362792cd1733adfcbb29b994a497048dc6d9296a3

SHA512
c1b22c19b1c42da7568d8b85fa8ccf8beebe32d270f78f7050cb4d847d46d98653941d40b017f9ad48923e9e4225fcce15e40e64f54fb9977ff39af90580f032

Download Submit
memory/2288-11-0x0000000074B20000-0x00000000750CB000-memory.dmp

Filesize
5.7MB

Download
memory/2288-12-0x0000000074B20000-0x00000000750CB000-memory.dmp

Filesize
5.7MB

Download
memory/2288-14-0x0000000074B20000-0x00000000750CB000-memory.dmp

Filesize
5.7MB

Download
memory/2684-0-0x0000000074B21000-0x0000000074B22000-memory.dmp

Filesize
4KB

Download
memory/2684-1-0x0000000074B20000-0x00000000750CB000-memory.dmp

Filesize
5.7MB

Download
memory/2684-2-0x0000000074B20000-0x00000000750CB000-memory.dmp

Filesize
5.7MB

Download
memory/2684-10-0x0000000074B20000-0x00000000750CB000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads