njrat | c9fbbbf1018311655c832dfcbc8a3522306f42f99e1ad3b6935b963417d40bc0

General

Target

c9fbbbf1018311655c832dfcbc8a3522306f42f99e1ad3b6935b963417d40bc0N.exe
Size

23KB
MD5

7be2ecc0502a744bdc311aea1105b0f0
SHA1

613b480a50037f64d1a6406cf732dd8f62f806cf
SHA256

c9fbbbf1018311655c832dfcbc8a3522306f42f99e1ad3b6935b963417d40bc0
SHA512

60c2b39d3631e2a3420554ee3e29ad7c61c5e1b9a3b9c59d40872ac28915d0903ee50c488b9d88b5b4840f5807d4c2975ad6100acaca6231cf45fa8ca161139d
SSDEEP

384:boWtkEwn65rgjAsGipk55D16xgXakhbZD0mRvR6JZlbw8hqIusZzZID:07O89p2rRpcnu9

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
1792	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-1-5-21-2045521122-590294423-3465680274-1000\Control Panel\International\Geo\Nation	c9fbbbf1018311655c832dfcbc8a3522306f42f99e1ad3b6935b963417d40bc0N.exe

Executes dropped EXE 1 IoCs

pid	Process
2000	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-1-5-21-2045521122-590294423-3465680274-1000\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

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	c9fbbbf1018311655c832dfcbc8a3522306f42f99e1ad3b6935b963417d40bc0N.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	2000	server.exe
Token: 33	2000	server.exe
Token: SeIncBasePriorityPrivilege	2000	server.exe
Token: 33	2000	server.exe
Token: SeIncBasePriorityPrivilege	2000	server.exe
Token: 33	2000	server.exe
Token: SeIncBasePriorityPrivilege	2000	server.exe
Token: 33	2000	server.exe
Token: SeIncBasePriorityPrivilege	2000	server.exe
Token: 33	2000	server.exe
Token: SeIncBasePriorityPrivilege	2000	server.exe
Token: 33	2000	server.exe
Token: SeIncBasePriorityPrivilege	2000	server.exe
Token: 33	2000	server.exe
Token: SeIncBasePriorityPrivilege	2000	server.exe
Token: 33	2000	server.exe
Token: SeIncBasePriorityPrivilege	2000	server.exe
Token: 33	2000	server.exe
Token: SeIncBasePriorityPrivilege	2000	server.exe
Token: 33	2000	server.exe
Token: SeIncBasePriorityPrivilege	2000	server.exe
Token: 33	2000	server.exe
Token: SeIncBasePriorityPrivilege	2000	server.exe
Token: 33	2000	server.exe
Token: SeIncBasePriorityPrivilege	2000	server.exe
Token: 33	2000	server.exe
Token: SeIncBasePriorityPrivilege	2000	server.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 1448 wrote to memory of 2000	1448	c9fbbbf1018311655c832dfcbc8a3522306f42f99e1ad3b6935b963417d40bc0N.exe	93
PID 1448 wrote to memory of 2000	1448	c9fbbbf1018311655c832dfcbc8a3522306f42f99e1ad3b6935b963417d40bc0N.exe	93
PID 1448 wrote to memory of 2000	1448	c9fbbbf1018311655c832dfcbc8a3522306f42f99e1ad3b6935b963417d40bc0N.exe	93
PID 2000 wrote to memory of 1792	2000	server.exe	100
PID 2000 wrote to memory of 1792	2000	server.exe	100
PID 2000 wrote to memory of 1792	2000	server.exe	100

C:\Users\Admin\AppData\Local\Temp\c9fbbbf1018311655c832dfcbc8a3522306f42f99e1ad3b6935b963417d40bc0N.exe
"C:\Users\Admin\AppData\Local\Temp\c9fbbbf1018311655c832dfcbc8a3522306f42f99e1ad3b6935b963417d40bc0N.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1448
- 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:2000
- - 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:1792

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
7be2ecc0502a744bdc311aea1105b0f0

SHA1
613b480a50037f64d1a6406cf732dd8f62f806cf

SHA256
c9fbbbf1018311655c832dfcbc8a3522306f42f99e1ad3b6935b963417d40bc0

SHA512
60c2b39d3631e2a3420554ee3e29ad7c61c5e1b9a3b9c59d40872ac28915d0903ee50c488b9d88b5b4840f5807d4c2975ad6100acaca6231cf45fa8ca161139d

Download Submit
memory/1448-0-0x00000000750B2000-0x00000000750B3000-memory.dmp

Filesize
4KB

Download
memory/1448-1-0x00000000750B0000-0x0000000075661000-memory.dmp

Filesize
5.7MB

Download
memory/1448-2-0x00000000750B0000-0x0000000075661000-memory.dmp

Filesize
5.7MB

Download
memory/1448-12-0x00000000750B0000-0x0000000075661000-memory.dmp

Filesize
5.7MB

Download
memory/2000-13-0x00000000750B0000-0x0000000075661000-memory.dmp

Filesize
5.7MB

Download
memory/2000-14-0x00000000750B0000-0x0000000075661000-memory.dmp

Filesize
5.7MB

Download
memory/2000-15-0x00000000750B0000-0x0000000075661000-memory.dmp

Filesize
5.7MB

Download
memory/2000-16-0x00000000750B0000-0x0000000075661000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads