njrat | 4a69898c4d1a747dcc91d35f11ddfdf6d743d1df0167dfa75ad27f385d38d62c

General

Target

4a69898c4d1a747dcc91d35f11ddfdf6d743d1df0167dfa75ad27f385d38d62cN.exe
Size

23KB
MD5

0ab49d41abd120b223162c88edcd16c0
SHA1

6960372e2605b3f38ece2497bbb9aa09a17cdb3b
SHA256

4a69898c4d1a747dcc91d35f11ddfdf6d743d1df0167dfa75ad27f385d38d62c
SHA512

f21ca14a434e3ff974cfb1b21daf6544593f8c8f37518b0a4952ce655f1fc72aa3a5512c5dd3cbb1d0bfb2260e7c858ad7500a2e6383d6c7c117250228841665
SSDEEP

384:WoWtkEwn65rgjAsGipk55D16xgXakhbZD0mRvR6JZlbw8hqIusZzZIe:J7O89p2rRpcnuk

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

2712 netsh.exe
Executes dropped EXE 1 IoCs

Processes:

server.exe

pid process

2728 server.exe
Loads dropped DLL 1 IoCs

Processes:

4a69898c4d1a747dcc91d35f11ddfdf6d743d1df0167dfa75ad27f385d38d62cN.exe

pid process

2400 4a69898c4d1a747dcc91d35f11ddfdf6d743d1df0167dfa75ad27f385d38d62cN.exe

pid	process
2712	netsh.exe

pid	process
2728	server.exe

pid	process
2400	4a69898c4d1a747dcc91d35f11ddfdf6d743d1df0167dfa75ad27f385d38d62cN.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-1-5-21-3063565911-2056067323-3330884624-1000\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 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

Processes:

4a69898c4d1a747dcc91d35f11ddfdf6d743d1df0167dfa75ad27f385d38d62cN.exeserver.exenetsh.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	4a69898c4d1a747dcc91d35f11ddfdf6d743d1df0167dfa75ad27f385d38d62cN.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 27 IoCs

Processes:

server.exe

description	pid	process
Token: SeDebugPrivilege	2728	server.exe
Token: 33	2728	server.exe
Token: SeIncBasePriorityPrivilege	2728	server.exe
Token: 33	2728	server.exe
Token: SeIncBasePriorityPrivilege	2728	server.exe
Token: 33	2728	server.exe
Token: SeIncBasePriorityPrivilege	2728	server.exe
Token: 33	2728	server.exe
Token: SeIncBasePriorityPrivilege	2728	server.exe
Token: 33	2728	server.exe
Token: SeIncBasePriorityPrivilege	2728	server.exe
Token: 33	2728	server.exe
Token: SeIncBasePriorityPrivilege	2728	server.exe
Token: 33	2728	server.exe
Token: SeIncBasePriorityPrivilege	2728	server.exe
Token: 33	2728	server.exe
Token: SeIncBasePriorityPrivilege	2728	server.exe
Token: 33	2728	server.exe
Token: SeIncBasePriorityPrivilege	2728	server.exe
Token: 33	2728	server.exe
Token: SeIncBasePriorityPrivilege	2728	server.exe
Token: 33	2728	server.exe
Token: SeIncBasePriorityPrivilege	2728	server.exe
Token: 33	2728	server.exe
Token: SeIncBasePriorityPrivilege	2728	server.exe
Token: 33	2728	server.exe
Token: SeIncBasePriorityPrivilege	2728	server.exe

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

4a69898c4d1a747dcc91d35f11ddfdf6d743d1df0167dfa75ad27f385d38d62cN.exeserver.exe

description	pid	process	target process
PID 2400 wrote to memory of 2728	2400	4a69898c4d1a747dcc91d35f11ddfdf6d743d1df0167dfa75ad27f385d38d62cN.exe	server.exe
PID 2400 wrote to memory of 2728	2400	4a69898c4d1a747dcc91d35f11ddfdf6d743d1df0167dfa75ad27f385d38d62cN.exe	server.exe
PID 2400 wrote to memory of 2728	2400	4a69898c4d1a747dcc91d35f11ddfdf6d743d1df0167dfa75ad27f385d38d62cN.exe	server.exe
PID 2400 wrote to memory of 2728	2400	4a69898c4d1a747dcc91d35f11ddfdf6d743d1df0167dfa75ad27f385d38d62cN.exe	server.exe
PID 2728 wrote to memory of 2712	2728	server.exe	netsh.exe
PID 2728 wrote to memory of 2712	2728	server.exe	netsh.exe
PID 2728 wrote to memory of 2712	2728	server.exe	netsh.exe
PID 2728 wrote to memory of 2712	2728	server.exe	netsh.exe

C:\Users\Admin\AppData\Local\Temp\4a69898c4d1a747dcc91d35f11ddfdf6d743d1df0167dfa75ad27f385d38d62cN.exe
"C:\Users\Admin\AppData\Local\Temp\4a69898c4d1a747dcc91d35f11ddfdf6d743d1df0167dfa75ad27f385d38d62cN.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2400
- 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:2728
- - 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:2712

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

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

Filesize
23KB

MD5
0ab49d41abd120b223162c88edcd16c0

SHA1
6960372e2605b3f38ece2497bbb9aa09a17cdb3b

SHA256
4a69898c4d1a747dcc91d35f11ddfdf6d743d1df0167dfa75ad27f385d38d62c

SHA512
f21ca14a434e3ff974cfb1b21daf6544593f8c8f37518b0a4952ce655f1fc72aa3a5512c5dd3cbb1d0bfb2260e7c858ad7500a2e6383d6c7c117250228841665

Download Submit
memory/2400-0-0x0000000074B41000-0x0000000074B42000-memory.dmp

Filesize
4KB

Download
memory/2400-1-0x0000000074B40000-0x00000000750EB000-memory.dmp

Filesize
5.7MB

Download
memory/2400-2-0x0000000074B40000-0x00000000750EB000-memory.dmp

Filesize
5.7MB

Download
memory/2400-11-0x0000000074B40000-0x00000000750EB000-memory.dmp

Filesize
5.7MB

Download
memory/2728-10-0x0000000074B40000-0x00000000750EB000-memory.dmp

Filesize
5.7MB

Download
memory/2728-12-0x0000000074B40000-0x00000000750EB000-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