njrat | 28db67940cab455eca46e4947d70edf2e04e39f9f037b0aa3a869b61a29ccf5b

General

Target

f87f2f4c612bc9e34b8b1d152b2d7b948eacd966.exe
Size

23KB
MD5

953d4e0f9a9ba08c721b4f45a64f04cb
SHA1

f87f2f4c612bc9e34b8b1d152b2d7b948eacd966
SHA256

28db67940cab455eca46e4947d70edf2e04e39f9f037b0aa3a869b61a29ccf5b
SHA512

eb98effbf6e0e2c0773e6263d11ece818d7f661b9c55ce1a682175d18bd3c3fc5d45c91f8eafb5dc2b06b6bd2182155378fe6ff409af0e112b6e12c200805a3a
SSDEEP

384:BoWtkEwn65rgjAsGipk55D16xgXakhbZD0mRvR6JZlbw8hqIusZzZI8:27O89p2rRpcnuG

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
1504	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-1-5-21-656926755-4116854191-210765258-1000\Control Panel\International\Geo\Nation	f87f2f4c612bc9e34b8b1d152b2d7b948eacd966.exe

Executes dropped EXE 1 IoCs

pid	Process
4136	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\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\7657c14284185fbd3fb108b43c7467ba = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\server.exe\" .."	server.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-656926755-4116854191-210765258-1000\SOFTWARE\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	f87f2f4c612bc9e34b8b1d152b2d7b948eacd966.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 35 IoCs

description	pid	Process
Token: SeDebugPrivilege	4136	server.exe
Token: 33	4136	server.exe
Token: SeIncBasePriorityPrivilege	4136	server.exe
Token: 33	4136	server.exe
Token: SeIncBasePriorityPrivilege	4136	server.exe
Token: 33	4136	server.exe
Token: SeIncBasePriorityPrivilege	4136	server.exe
Token: 33	4136	server.exe
Token: SeIncBasePriorityPrivilege	4136	server.exe
Token: 33	4136	server.exe
Token: SeIncBasePriorityPrivilege	4136	server.exe
Token: 33	4136	server.exe
Token: SeIncBasePriorityPrivilege	4136	server.exe
Token: 33	4136	server.exe
Token: SeIncBasePriorityPrivilege	4136	server.exe
Token: 33	4136	server.exe
Token: SeIncBasePriorityPrivilege	4136	server.exe
Token: 33	4136	server.exe
Token: SeIncBasePriorityPrivilege	4136	server.exe
Token: 33	4136	server.exe
Token: SeIncBasePriorityPrivilege	4136	server.exe
Token: 33	4136	server.exe
Token: SeIncBasePriorityPrivilege	4136	server.exe
Token: 33	4136	server.exe
Token: SeIncBasePriorityPrivilege	4136	server.exe
Token: 33	4136	server.exe
Token: SeIncBasePriorityPrivilege	4136	server.exe
Token: 33	4136	server.exe
Token: SeIncBasePriorityPrivilege	4136	server.exe
Token: 33	4136	server.exe
Token: SeIncBasePriorityPrivilege	4136	server.exe
Token: 33	4136	server.exe
Token: SeIncBasePriorityPrivilege	4136	server.exe
Token: 33	4136	server.exe
Token: SeIncBasePriorityPrivilege	4136	server.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 3044 wrote to memory of 4136	3044	f87f2f4c612bc9e34b8b1d152b2d7b948eacd966.exe	85
PID 3044 wrote to memory of 4136	3044	f87f2f4c612bc9e34b8b1d152b2d7b948eacd966.exe	85
PID 3044 wrote to memory of 4136	3044	f87f2f4c612bc9e34b8b1d152b2d7b948eacd966.exe	85
PID 4136 wrote to memory of 1504	4136	server.exe	89
PID 4136 wrote to memory of 1504	4136	server.exe	89
PID 4136 wrote to memory of 1504	4136	server.exe	89

C:\Users\Admin\AppData\Local\Temp\f87f2f4c612bc9e34b8b1d152b2d7b948eacd966.exe
"C:\Users\Admin\AppData\Local\Temp\f87f2f4c612bc9e34b8b1d152b2d7b948eacd966.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3044
- 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:4136
- - 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:1504

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
953d4e0f9a9ba08c721b4f45a64f04cb

SHA1
f87f2f4c612bc9e34b8b1d152b2d7b948eacd966

SHA256
28db67940cab455eca46e4947d70edf2e04e39f9f037b0aa3a869b61a29ccf5b

SHA512
eb98effbf6e0e2c0773e6263d11ece818d7f661b9c55ce1a682175d18bd3c3fc5d45c91f8eafb5dc2b06b6bd2182155378fe6ff409af0e112b6e12c200805a3a

Download Submit
memory/3044-0-0x0000000075412000-0x0000000075413000-memory.dmp

Filesize
4KB

Download
memory/3044-1-0x0000000075410000-0x00000000759C1000-memory.dmp

Filesize
5.7MB

Download
memory/3044-2-0x0000000075410000-0x00000000759C1000-memory.dmp

Filesize
5.7MB

Download
memory/3044-12-0x0000000075410000-0x00000000759C1000-memory.dmp

Filesize
5.7MB

Download
memory/4136-13-0x0000000075410000-0x00000000759C1000-memory.dmp

Filesize
5.7MB

Download
memory/4136-14-0x0000000075410000-0x00000000759C1000-memory.dmp

Filesize
5.7MB

Download
memory/4136-15-0x0000000075410000-0x00000000759C1000-memory.dmp

Filesize
5.7MB

Download
memory/4136-16-0x0000000075410000-0x00000000759C1000-memory.dmp

Filesize
5.7MB

Download
memory/4136-17-0x0000000075410000-0x00000000759C1000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads