njrat | 7ac9dfebe780ce7e7b7d0b748ac8677686b6815aff215c5716f769386f5b897e

General

Target

7ac9dfebe780ce7e7b7d0b748ac8677686b6815aff215c5716f769386f5b897e.exe
Size

23KB
MD5

fd9a9956afb366f92f2007913bbef0f7
SHA1

a3e4886f082ae90b5a6e137a9a7d3a8c17fa98eb
SHA256

7ac9dfebe780ce7e7b7d0b748ac8677686b6815aff215c5716f769386f5b897e
SHA512

c6920e7f886f36cbdbe8171d4a10fdc450f24728620fe5d709e960e9e03d4d6f51dd8a32c3339359a289c40a1f48019ef324519eb37d483b31fe7f7f78e0bead
SSDEEP

384:roWtkEwn65rgjAsGipk55D16xgXakhbZD0mRvR6JZlbw8hqIusZzZI7:E7O89p2rRpcnuN

Score

10^/10

njrat hacked discovery evasion persistence privilege_escalation trojan

Malware Config

Extracted

Family

njrat

Version

0.7d

Botnet

HacKed

C2

10.10.1.11:5552

Mutex

7657c14284185fbd3fb108b43c7467ba

Attributes

reg_key
7657c14284185fbd3fb108b43c7467ba
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

Processes:

netsh.exe

pid process

2756 netsh.exe
Executes dropped EXE 1 IoCs

Processes:

server.exe

pid process

2944 server.exe
Loads dropped DLL 1 IoCs

Processes:

7ac9dfebe780ce7e7b7d0b748ac8677686b6815aff215c5716f769386f5b897e.exe

pid process

1908 7ac9dfebe780ce7e7b7d0b748ac8677686b6815aff215c5716f769386f5b897e.exe

pid	process
2756	netsh.exe

pid	process
2944	server.exe

pid	process
1908	7ac9dfebe780ce7e7b7d0b748ac8677686b6815aff215c5716f769386f5b897e.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

server.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-1488793075-819845221-1497111674-1000\Software\Microsoft\Windows\CurrentVersion\Run\7657c14284185fbd3fb108b43c7467ba = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\server.exe\" .."	server.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\7657c14284185fbd3fb108b43c7467ba = "\"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

Processes:

netsh.exe

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 queried	\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

Processes:

7ac9dfebe780ce7e7b7d0b748ac8677686b6815aff215c5716f769386f5b897e.exeserver.exenetsh.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	7ac9dfebe780ce7e7b7d0b748ac8677686b6815aff215c5716f769386f5b897e.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

Processes:

server.exe

description	pid	process
Token: SeDebugPrivilege	2944	server.exe
Token: 33	2944	server.exe
Token: SeIncBasePriorityPrivilege	2944	server.exe
Token: 33	2944	server.exe
Token: SeIncBasePriorityPrivilege	2944	server.exe
Token: 33	2944	server.exe
Token: SeIncBasePriorityPrivilege	2944	server.exe
Token: 33	2944	server.exe
Token: SeIncBasePriorityPrivilege	2944	server.exe
Token: 33	2944	server.exe
Token: SeIncBasePriorityPrivilege	2944	server.exe
Token: 33	2944	server.exe
Token: SeIncBasePriorityPrivilege	2944	server.exe
Token: 33	2944	server.exe
Token: SeIncBasePriorityPrivilege	2944	server.exe
Token: 33	2944	server.exe
Token: SeIncBasePriorityPrivilege	2944	server.exe
Token: 33	2944	server.exe
Token: SeIncBasePriorityPrivilege	2944	server.exe
Token: 33	2944	server.exe
Token: SeIncBasePriorityPrivilege	2944	server.exe
Token: 33	2944	server.exe
Token: SeIncBasePriorityPrivilege	2944	server.exe
Token: 33	2944	server.exe
Token: SeIncBasePriorityPrivilege	2944	server.exe
Token: 33	2944	server.exe
Token: SeIncBasePriorityPrivilege	2944	server.exe
Token: 33	2944	server.exe
Token: SeIncBasePriorityPrivilege	2944	server.exe
Token: 33	2944	server.exe
Token: SeIncBasePriorityPrivilege	2944	server.exe
Token: 33	2944	server.exe
Token: SeIncBasePriorityPrivilege	2944	server.exe
Token: 33	2944	server.exe
Token: SeIncBasePriorityPrivilege	2944	server.exe

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

7ac9dfebe780ce7e7b7d0b748ac8677686b6815aff215c5716f769386f5b897e.exeserver.exe

description	pid	process	target process
PID 1908 wrote to memory of 2944	1908	7ac9dfebe780ce7e7b7d0b748ac8677686b6815aff215c5716f769386f5b897e.exe	server.exe
PID 1908 wrote to memory of 2944	1908	7ac9dfebe780ce7e7b7d0b748ac8677686b6815aff215c5716f769386f5b897e.exe	server.exe
PID 1908 wrote to memory of 2944	1908	7ac9dfebe780ce7e7b7d0b748ac8677686b6815aff215c5716f769386f5b897e.exe	server.exe
PID 1908 wrote to memory of 2944	1908	7ac9dfebe780ce7e7b7d0b748ac8677686b6815aff215c5716f769386f5b897e.exe	server.exe
PID 2944 wrote to memory of 2756	2944	server.exe	netsh.exe
PID 2944 wrote to memory of 2756	2944	server.exe	netsh.exe
PID 2944 wrote to memory of 2756	2944	server.exe	netsh.exe
PID 2944 wrote to memory of 2756	2944	server.exe	netsh.exe

C:\Users\Admin\AppData\Local\Temp\7ac9dfebe780ce7e7b7d0b748ac8677686b6815aff215c5716f769386f5b897e.exe
"C:\Users\Admin\AppData\Local\Temp\7ac9dfebe780ce7e7b7d0b748ac8677686b6815aff215c5716f769386f5b897e.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1908
- C:\Users\Admin\AppData\Local\Temp\server.exe
  "C:\Users\Admin\AppData\Local\Temp\server.exe"
  2⤵
  - Executes dropped EXE
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2944
- - 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:2756

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
23KB

MD5
fd9a9956afb366f92f2007913bbef0f7

SHA1
a3e4886f082ae90b5a6e137a9a7d3a8c17fa98eb

SHA256
7ac9dfebe780ce7e7b7d0b748ac8677686b6815aff215c5716f769386f5b897e

SHA512
c6920e7f886f36cbdbe8171d4a10fdc450f24728620fe5d709e960e9e03d4d6f51dd8a32c3339359a289c40a1f48019ef324519eb37d483b31fe7f7f78e0bead

Download Submit
memory/1908-0-0x00000000741A1000-0x00000000741A2000-memory.dmp

Filesize
4KB

Download
memory/1908-1-0x00000000741A0000-0x000000007474B000-memory.dmp

Filesize
5.7MB

Download
memory/1908-2-0x00000000741A0000-0x000000007474B000-memory.dmp

Filesize
5.7MB

Download
memory/1908-10-0x00000000741A0000-0x000000007474B000-memory.dmp

Filesize
5.7MB

Download
memory/2944-12-0x00000000741A0000-0x000000007474B000-memory.dmp

Filesize
5.7MB

Download
memory/2944-11-0x00000000741A0000-0x000000007474B000-memory.dmp

Filesize
5.7MB

Download
memory/2944-13-0x00000000741A0000-0x000000007474B000-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