njrat | 06de3a6428e56b4a9acefd4216f73bb900379f2c28f115e71831779043296dff

General

Target
1fa80ac8ff18713af90f4e7f544b06d0N.exe
Size 23KB
Sample240720-2yrb9azakb
SHA256 06de3a6428e56b4a9acefd4216f73bb900379f2c28f115e71831779043296dff
MD5 1fa80ac8ff18713af90f4e7f544b06d0
SHA1 24d46d966a5b7a18704015797d67ecc5873c5d3e
SHA512 8f80039714fece2c5a7f86c7a7269f75242ff6ce43560e6d84ea14dd7c97f932da8e672f550d5e1690fed09b7cba85cbf63fb998552ce89dac8f8da2519ef6f9
SSDEEP 384:yoWtkEwn65rgjAsGipk55D16xgXakhbZD0mRvR6JZlbw8hqIusZzZIn:17O89p2rRpcnuJ
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

njrat evasion persistence privilege_escalation trojan

Malware Config

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
3540	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-1-5-21-2636447293-1148739154-93880854-1000\Control Panel\International\Geo\Nation	1fa80ac8ff18713af90f4e7f544b06d0N.exe

Executes dropped EXE 1 IoCs

pid	Process
1828	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-1-5-21-2636447293-1148739154-93880854-1000\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 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

Suspicious use of AdjustPrivilegeToken 27 IoCs

description	pid	Process
Token: SeDebugPrivilege	1828	server.exe
Token: 33	1828	server.exe
Token: SeIncBasePriorityPrivilege	1828	server.exe
Token: 33	1828	server.exe
Token: SeIncBasePriorityPrivilege	1828	server.exe
Token: 33	1828	server.exe
Token: SeIncBasePriorityPrivilege	1828	server.exe
Token: 33	1828	server.exe
Token: SeIncBasePriorityPrivilege	1828	server.exe
Token: 33	1828	server.exe
Token: SeIncBasePriorityPrivilege	1828	server.exe
Token: 33	1828	server.exe
Token: SeIncBasePriorityPrivilege	1828	server.exe
Token: 33	1828	server.exe
Token: SeIncBasePriorityPrivilege	1828	server.exe
Token: 33	1828	server.exe
Token: SeIncBasePriorityPrivilege	1828	server.exe
Token: 33	1828	server.exe
Token: SeIncBasePriorityPrivilege	1828	server.exe
Token: 33	1828	server.exe
Token: SeIncBasePriorityPrivilege	1828	server.exe
Token: 33	1828	server.exe
Token: SeIncBasePriorityPrivilege	1828	server.exe
Token: 33	1828	server.exe
Token: SeIncBasePriorityPrivilege	1828	server.exe
Token: 33	1828	server.exe
Token: SeIncBasePriorityPrivilege	1828	server.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 1700 wrote to memory of 1828	1700	1fa80ac8ff18713af90f4e7f544b06d0N.exe	91
PID 1700 wrote to memory of 1828	1700	1fa80ac8ff18713af90f4e7f544b06d0N.exe	91
PID 1700 wrote to memory of 1828	1700	1fa80ac8ff18713af90f4e7f544b06d0N.exe	91
PID 1828 wrote to memory of 3540	1828	server.exe	94
PID 1828 wrote to memory of 3540	1828	server.exe	94
PID 1828 wrote to memory of 3540	1828	server.exe	94

C:\Users\Admin\AppData\Local\Temp\1fa80ac8ff18713af90f4e7f544b06d0N.exe
"C:\Users\Admin\AppData\Local\Temp\1fa80ac8ff18713af90f4e7f544b06d0N.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:1700
- 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
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:1828
- - 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
    PID:3540

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

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

server.exe

Path C:\Users\Admin\AppData\Local\Temp\server.exe
Size 23KB
SHA256 06de3a6428e56b4a9acefd4216f73bb900379f2c28f115e71831779043296dff
MD5 1fa80ac8ff18713af90f4e7f544b06d0
SHA1 24d46d966a5b7a18704015797d67ecc5873c5d3e
SHA512 8f80039714fece2c5a7f86c7a7269f75242ff6ce43560e6d84ea14dd7c97f932da8e672f550d5e1690fed09b7cba85cbf63fb998552ce89dac8f8da2519ef6f9
SSDEEP 384:yoWtkEwn65rgjAsGipk55D16xgXakhbZD0mRvR6JZlbw8hqIusZzZIn:17O89p2rRpcnuJ
MD5 SHA1 SHA512 SSDEEP

Submit Download

memory/1700-0-0x0000000074FB2000-0x0000000074FB3000-memory.dmp

Download

memory/1700-1-0x0000000074FB0000-0x0000000075561000-memory.dmp

Download

memory/1700-2-0x0000000074FB0000-0x0000000075561000-memory.dmp

Download

memory/1700-12-0x0000000074FB0000-0x0000000075561000-memory.dmp

Download

memory/1828-13-0x0000000074FB0000-0x0000000075561000-memory.dmp

Download

memory/1828-14-0x0000000074FB0000-0x0000000075561000-memory.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads