njrat | aae3c9257e55dc25861fe04de3ea21b07420396d76f277a3d2d61884c52a3e30

General

Target

aae3c9257e55dc25861fe04de3ea21b07420396d76f277a3d2d61884c52a3e30N.exe
Size

23KB
MD5

40cf0a7718299af134ac9ac606ac89a0
SHA1

16eed8b7c444b7ee475ccd7332de233b3a7ec02e
SHA256

aae3c9257e55dc25861fe04de3ea21b07420396d76f277a3d2d61884c52a3e30
SHA512

2f6e36e32b7ca48969ed31adbf1b75107c6affa62933ac9d70696423cb50c882e8f9a022f01e96d4f6900e56ca4df189712a4b00e6d59fff1f071d2fca517aab
SSDEEP

384:boWtkEwn65rgjAsGipk55D16xgXakhbZD0mRvR6JZlbw8hqIusZzZIb:07O89p2rRpcnuV

Score

10^/10

njrat discovery 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
5088	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-1-5-21-3442511616-637977696-3186306149-1000\Control Panel\International\Geo\Nation	aae3c9257e55dc25861fe04de3ea21b07420396d76f277a3d2d61884c52a3e30N.exe

Executes dropped EXE 1 IoCs

pid	Process
3000	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-1-5-21-3442511616-637977696-3186306149-1000\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 queried	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key value enumerated	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key opened	\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	server.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	aae3c9257e55dc25861fe04de3ea21b07420396d76f277a3d2d61884c52a3e30N.exe

Suspicious use of AdjustPrivilegeToken 27 IoCs

description	pid	Process
Token: SeDebugPrivilege	3000	server.exe
Token: 33	3000	server.exe
Token: SeIncBasePriorityPrivilege	3000	server.exe
Token: 33	3000	server.exe
Token: SeIncBasePriorityPrivilege	3000	server.exe
Token: 33	3000	server.exe
Token: SeIncBasePriorityPrivilege	3000	server.exe
Token: 33	3000	server.exe
Token: SeIncBasePriorityPrivilege	3000	server.exe
Token: 33	3000	server.exe
Token: SeIncBasePriorityPrivilege	3000	server.exe
Token: 33	3000	server.exe
Token: SeIncBasePriorityPrivilege	3000	server.exe
Token: 33	3000	server.exe
Token: SeIncBasePriorityPrivilege	3000	server.exe
Token: 33	3000	server.exe
Token: SeIncBasePriorityPrivilege	3000	server.exe
Token: 33	3000	server.exe
Token: SeIncBasePriorityPrivilege	3000	server.exe
Token: 33	3000	server.exe
Token: SeIncBasePriorityPrivilege	3000	server.exe
Token: 33	3000	server.exe
Token: SeIncBasePriorityPrivilege	3000	server.exe
Token: 33	3000	server.exe
Token: SeIncBasePriorityPrivilege	3000	server.exe
Token: 33	3000	server.exe
Token: SeIncBasePriorityPrivilege	3000	server.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4748 wrote to memory of 3000	4748	aae3c9257e55dc25861fe04de3ea21b07420396d76f277a3d2d61884c52a3e30N.exe	92
PID 4748 wrote to memory of 3000	4748	aae3c9257e55dc25861fe04de3ea21b07420396d76f277a3d2d61884c52a3e30N.exe	92
PID 4748 wrote to memory of 3000	4748	aae3c9257e55dc25861fe04de3ea21b07420396d76f277a3d2d61884c52a3e30N.exe	92
PID 3000 wrote to memory of 5088	3000	server.exe	95
PID 3000 wrote to memory of 5088	3000	server.exe	95
PID 3000 wrote to memory of 5088	3000	server.exe	95

C:\Users\Admin\AppData\Local\Temp\aae3c9257e55dc25861fe04de3ea21b07420396d76f277a3d2d61884c52a3e30N.exe
"C:\Users\Admin\AppData\Local\Temp\aae3c9257e55dc25861fe04de3ea21b07420396d76f277a3d2d61884c52a3e30N.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4748
- 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:3000
- - 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:5088

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
40cf0a7718299af134ac9ac606ac89a0

SHA1
16eed8b7c444b7ee475ccd7332de233b3a7ec02e

SHA256
aae3c9257e55dc25861fe04de3ea21b07420396d76f277a3d2d61884c52a3e30

SHA512
2f6e36e32b7ca48969ed31adbf1b75107c6affa62933ac9d70696423cb50c882e8f9a022f01e96d4f6900e56ca4df189712a4b00e6d59fff1f071d2fca517aab

Download Submit
memory/3000-12-0x0000000074BF0000-0x00000000751A1000-memory.dmp

Filesize
5.7MB

Download
memory/3000-14-0x0000000074BF0000-0x00000000751A1000-memory.dmp

Filesize
5.7MB

Download
memory/3000-15-0x0000000074BF0000-0x00000000751A1000-memory.dmp

Filesize
5.7MB

Download
memory/4748-0-0x0000000074BF2000-0x0000000074BF3000-memory.dmp

Filesize
4KB

Download
memory/4748-1-0x0000000074BF0000-0x00000000751A1000-memory.dmp

Filesize
5.7MB

Download
memory/4748-2-0x0000000074BF0000-0x00000000751A1000-memory.dmp

Filesize
5.7MB

Download
memory/4748-13-0x0000000074BF0000-0x00000000751A1000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads