njrat | 9bbc44253bb0da8ffb93efa7666097934ce3aa8f145d4985a7793b6ee284633a

General

Target

9bbc44253bb0da8ffb93efa7666097934ce3aa8f145d4985a7793b6ee284633aN.exe
Size

23KB
MD5

8a65396bf12047be09c5c7e900419480
SHA1

f766f115e39c13089a9a81bb5992aa14bec5c080
SHA256

9bbc44253bb0da8ffb93efa7666097934ce3aa8f145d4985a7793b6ee284633a
SHA512

0b6a5907f58e01f28a34de7749cce01e6fa162903073ba69cd6fa20fc69ccd6c2f7d0404d9476ad30bba41a8906ace30de92563821561dd4907ea44ae43472ec
SSDEEP

384:KoWtkEwn65rgjAsGipk55D16xgXakhbZD0mRvR6JZlbw8hqIusZzZIe:t7O89p2rRpcnuM

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
2136	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-1-5-21-493223053-2004649691-1575712786-1000\Control Panel\International\Geo\Nation	9bbc44253bb0da8ffb93efa7666097934ce3aa8f145d4985a7793b6ee284633aN.exe

Executes dropped EXE 1 IoCs

pid	Process
4364	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-1-5-21-493223053-2004649691-1575712786-1000\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	9bbc44253bb0da8ffb93efa7666097934ce3aa8f145d4985a7793b6ee284633aN.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	4364	server.exe
Token: 33	4364	server.exe
Token: SeIncBasePriorityPrivilege	4364	server.exe
Token: 33	4364	server.exe
Token: SeIncBasePriorityPrivilege	4364	server.exe
Token: 33	4364	server.exe
Token: SeIncBasePriorityPrivilege	4364	server.exe
Token: 33	4364	server.exe
Token: SeIncBasePriorityPrivilege	4364	server.exe
Token: 33	4364	server.exe
Token: SeIncBasePriorityPrivilege	4364	server.exe
Token: 33	4364	server.exe
Token: SeIncBasePriorityPrivilege	4364	server.exe
Token: 33	4364	server.exe
Token: SeIncBasePriorityPrivilege	4364	server.exe
Token: 33	4364	server.exe
Token: SeIncBasePriorityPrivilege	4364	server.exe
Token: 33	4364	server.exe
Token: SeIncBasePriorityPrivilege	4364	server.exe
Token: 33	4364	server.exe
Token: SeIncBasePriorityPrivilege	4364	server.exe
Token: 33	4364	server.exe
Token: SeIncBasePriorityPrivilege	4364	server.exe
Token: 33	4364	server.exe
Token: SeIncBasePriorityPrivilege	4364	server.exe
Token: 33	4364	server.exe
Token: SeIncBasePriorityPrivilege	4364	server.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4788 wrote to memory of 4364	4788	9bbc44253bb0da8ffb93efa7666097934ce3aa8f145d4985a7793b6ee284633aN.exe	93
PID 4788 wrote to memory of 4364	4788	9bbc44253bb0da8ffb93efa7666097934ce3aa8f145d4985a7793b6ee284633aN.exe	93
PID 4788 wrote to memory of 4364	4788	9bbc44253bb0da8ffb93efa7666097934ce3aa8f145d4985a7793b6ee284633aN.exe	93
PID 4364 wrote to memory of 2136	4364	server.exe	98
PID 4364 wrote to memory of 2136	4364	server.exe	98
PID 4364 wrote to memory of 2136	4364	server.exe	98

C:\Users\Admin\AppData\Local\Temp\9bbc44253bb0da8ffb93efa7666097934ce3aa8f145d4985a7793b6ee284633aN.exe
"C:\Users\Admin\AppData\Local\Temp\9bbc44253bb0da8ffb93efa7666097934ce3aa8f145d4985a7793b6ee284633aN.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4788
- 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:4364
- - 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:2136

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
8a65396bf12047be09c5c7e900419480

SHA1
f766f115e39c13089a9a81bb5992aa14bec5c080

SHA256
9bbc44253bb0da8ffb93efa7666097934ce3aa8f145d4985a7793b6ee284633a

SHA512
0b6a5907f58e01f28a34de7749cce01e6fa162903073ba69cd6fa20fc69ccd6c2f7d0404d9476ad30bba41a8906ace30de92563821561dd4907ea44ae43472ec

Download Submit
memory/4364-13-0x0000000074BC0000-0x0000000075171000-memory.dmp

Filesize
5.7MB

Download
memory/4364-14-0x0000000074BC0000-0x0000000075171000-memory.dmp

Filesize
5.7MB

Download
memory/4364-15-0x0000000074BC0000-0x0000000075171000-memory.dmp

Filesize
5.7MB

Download
memory/4364-16-0x0000000074BC0000-0x0000000075171000-memory.dmp

Filesize
5.7MB

Download
memory/4788-0-0x0000000074BC2000-0x0000000074BC3000-memory.dmp

Filesize
4KB

Download
memory/4788-1-0x0000000074BC0000-0x0000000075171000-memory.dmp

Filesize
5.7MB

Download
memory/4788-2-0x0000000074BC0000-0x0000000075171000-memory.dmp

Filesize
5.7MB

Download
memory/4788-12-0x0000000074BC0000-0x0000000075171000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads