njrat | 4a69898c4d1a747dcc91d35f11ddfdf6d743d1df0167dfa75ad27f385d38d62c

General

Target

4a69898c4d1a747dcc91d35f11ddfdf6d743d1df0167dfa75ad27f385d38d62cN.exe
Size

23KB
MD5

0ab49d41abd120b223162c88edcd16c0
SHA1

6960372e2605b3f38ece2497bbb9aa09a17cdb3b
SHA256

4a69898c4d1a747dcc91d35f11ddfdf6d743d1df0167dfa75ad27f385d38d62c
SHA512

f21ca14a434e3ff974cfb1b21daf6544593f8c8f37518b0a4952ce655f1fc72aa3a5512c5dd3cbb1d0bfb2260e7c858ad7500a2e6383d6c7c117250228841665
SSDEEP

384:WoWtkEwn65rgjAsGipk55D16xgXakhbZD0mRvR6JZlbw8hqIusZzZIe:J7O89p2rRpcnuk

Score

10^/10

njrat discovery evasion persistence privilege_escalation trojan

Malware Config

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
2880	netsh.exe

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\Control Panel\International\Geo\Nation	4a69898c4d1a747dcc91d35f11ddfdf6d743d1df0167dfa75ad27f385d38d62cN.exe

Executes dropped EXE 1 IoCs

pid	Process
5060	server.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-1-5-21-1045960512-3948844814-3059691613-1000\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

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

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

description	pid	Process
Token: SeDebugPrivilege	5060	server.exe
Token: 33	5060	server.exe
Token: SeIncBasePriorityPrivilege	5060	server.exe
Token: 33	5060	server.exe
Token: SeIncBasePriorityPrivilege	5060	server.exe
Token: 33	5060	server.exe
Token: SeIncBasePriorityPrivilege	5060	server.exe
Token: 33	5060	server.exe
Token: SeIncBasePriorityPrivilege	5060	server.exe
Token: 33	5060	server.exe
Token: SeIncBasePriorityPrivilege	5060	server.exe
Token: 33	5060	server.exe
Token: SeIncBasePriorityPrivilege	5060	server.exe
Token: 33	5060	server.exe
Token: SeIncBasePriorityPrivilege	5060	server.exe
Token: 33	5060	server.exe
Token: SeIncBasePriorityPrivilege	5060	server.exe
Token: 33	5060	server.exe
Token: SeIncBasePriorityPrivilege	5060	server.exe
Token: 33	5060	server.exe
Token: SeIncBasePriorityPrivilege	5060	server.exe
Token: 33	5060	server.exe
Token: SeIncBasePriorityPrivilege	5060	server.exe
Token: 33	5060	server.exe
Token: SeIncBasePriorityPrivilege	5060	server.exe
Token: 33	5060	server.exe
Token: SeIncBasePriorityPrivilege	5060	server.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 2412 wrote to memory of 5060	2412	4a69898c4d1a747dcc91d35f11ddfdf6d743d1df0167dfa75ad27f385d38d62cN.exe	93
PID 2412 wrote to memory of 5060	2412	4a69898c4d1a747dcc91d35f11ddfdf6d743d1df0167dfa75ad27f385d38d62cN.exe	93
PID 2412 wrote to memory of 5060	2412	4a69898c4d1a747dcc91d35f11ddfdf6d743d1df0167dfa75ad27f385d38d62cN.exe	93
PID 5060 wrote to memory of 2880	5060	server.exe	100
PID 5060 wrote to memory of 2880	5060	server.exe	100
PID 5060 wrote to memory of 2880	5060	server.exe	100

C:\Users\Admin\AppData\Local\Temp\4a69898c4d1a747dcc91d35f11ddfdf6d743d1df0167dfa75ad27f385d38d62cN.exe
"C:\Users\Admin\AppData\Local\Temp\4a69898c4d1a747dcc91d35f11ddfdf6d743d1df0167dfa75ad27f385d38d62cN.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2412
- 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:5060
- - 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:2880

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

Query Registry

1

T1012

System Information Discovery

2

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/2412-0-0x0000000075382000-0x0000000075383000-memory.dmp

Filesize
4KB

Download
memory/2412-1-0x0000000075380000-0x0000000075931000-memory.dmp

Filesize
5.7MB

Download
memory/2412-2-0x0000000075380000-0x0000000075931000-memory.dmp

Filesize
5.7MB

Download
memory/2412-13-0x0000000075380000-0x0000000075931000-memory.dmp

Filesize
5.7MB

Download
memory/5060-12-0x0000000075380000-0x0000000075931000-memory.dmp

Filesize
5.7MB

Download
memory/5060-14-0x0000000075380000-0x0000000075931000-memory.dmp

Filesize
5.7MB

Download
memory/5060-15-0x0000000075380000-0x0000000075931000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads