njrat | d79b50d337f0683e44b1c0ed18dcbaf9a85bcaa04ad0671c12a33736681d21c0

General

Target

d79b50d337f0683e44b1c0ed18dcbaf9a85bcaa04ad0671c12a33736681d21c0N.exe
Size

23KB
MD5

73553f0520d2bbb090228f78a93cd670
SHA1

0529a9d3fbac2784ba161827d14c31eae8f2f1ba
SHA256

d79b50d337f0683e44b1c0ed18dcbaf9a85bcaa04ad0671c12a33736681d21c0
SHA512

fab4f004efebe2eccc375269a82d6a94e6dc4be00c6b4c5d27a9b012fd64f39c1017932868951012818f2342873798245d163c9bd0fb1021bab578ccc9223184
SSDEEP

384:3W3qbCKml4hoo9IMVCGpOsjhEv6/ghrrgOpt3xmRvR6JZlbw8hqIusZzZyK:3SN0aatpAnARpcnuC

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
544	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-1-5-21-2878641211-696417878-3864914810-1000\Control Panel\International\Geo\Nation	d79b50d337f0683e44b1c0ed18dcbaf9a85bcaa04ad0671c12a33736681d21c0N.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\1e3469295dc52f6e1f2bb96a187dfd66.exe	server.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\1e3469295dc52f6e1f2bb96a187dfd66.exe	server.exe

Executes dropped EXE 1 IoCs

pid	Process
5048	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-1-5-21-2878641211-696417878-3864914810-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\1e3469295dc52f6e1f2bb96a187dfd66 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\server.exe\" .."	server.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\1e3469295dc52f6e1f2bb96a187dfd66 = "\"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 value enumerated	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key opened	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key queried	\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	d79b50d337f0683e44b1c0ed18dcbaf9a85bcaa04ad0671c12a33736681d21c0N.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	5048	server.exe
Token: 33	5048	server.exe
Token: SeIncBasePriorityPrivilege	5048	server.exe
Token: 33	5048	server.exe
Token: SeIncBasePriorityPrivilege	5048	server.exe
Token: 33	5048	server.exe
Token: SeIncBasePriorityPrivilege	5048	server.exe
Token: 33	5048	server.exe
Token: SeIncBasePriorityPrivilege	5048	server.exe
Token: 33	5048	server.exe
Token: SeIncBasePriorityPrivilege	5048	server.exe
Token: 33	5048	server.exe
Token: SeIncBasePriorityPrivilege	5048	server.exe
Token: 33	5048	server.exe
Token: SeIncBasePriorityPrivilege	5048	server.exe
Token: 33	5048	server.exe
Token: SeIncBasePriorityPrivilege	5048	server.exe
Token: 33	5048	server.exe
Token: SeIncBasePriorityPrivilege	5048	server.exe
Token: 33	5048	server.exe
Token: SeIncBasePriorityPrivilege	5048	server.exe
Token: 33	5048	server.exe
Token: SeIncBasePriorityPrivilege	5048	server.exe
Token: 33	5048	server.exe
Token: SeIncBasePriorityPrivilege	5048	server.exe
Token: 33	5048	server.exe
Token: SeIncBasePriorityPrivilege	5048	server.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 2152 wrote to memory of 5048	2152	d79b50d337f0683e44b1c0ed18dcbaf9a85bcaa04ad0671c12a33736681d21c0N.exe	91
PID 2152 wrote to memory of 5048	2152	d79b50d337f0683e44b1c0ed18dcbaf9a85bcaa04ad0671c12a33736681d21c0N.exe	91
PID 2152 wrote to memory of 5048	2152	d79b50d337f0683e44b1c0ed18dcbaf9a85bcaa04ad0671c12a33736681d21c0N.exe	91
PID 5048 wrote to memory of 544	5048	server.exe	98
PID 5048 wrote to memory of 544	5048	server.exe	98
PID 5048 wrote to memory of 544	5048	server.exe	98

C:\Users\Admin\AppData\Local\Temp\d79b50d337f0683e44b1c0ed18dcbaf9a85bcaa04ad0671c12a33736681d21c0N.exe
"C:\Users\Admin\AppData\Local\Temp\d79b50d337f0683e44b1c0ed18dcbaf9a85bcaa04ad0671c12a33736681d21c0N.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2152
- C:\Users\Admin\AppData\Local\Temp\server.exe
  "C:\Users\Admin\AppData\Local\Temp\server.exe"
  2⤵
  - Drops startup file
  - Executes dropped EXE
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:5048
- - 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:544

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
73553f0520d2bbb090228f78a93cd670

SHA1
0529a9d3fbac2784ba161827d14c31eae8f2f1ba

SHA256
d79b50d337f0683e44b1c0ed18dcbaf9a85bcaa04ad0671c12a33736681d21c0

SHA512
fab4f004efebe2eccc375269a82d6a94e6dc4be00c6b4c5d27a9b012fd64f39c1017932868951012818f2342873798245d163c9bd0fb1021bab578ccc9223184

Download Submit
memory/2152-0-0x0000000074EF2000-0x0000000074EF3000-memory.dmp

Filesize
4KB

Download
memory/2152-1-0x0000000074EF0000-0x00000000754A1000-memory.dmp

Filesize
5.7MB

Download
memory/2152-2-0x0000000074EF0000-0x00000000754A1000-memory.dmp

Filesize
5.7MB

Download
memory/2152-13-0x0000000074EF0000-0x00000000754A1000-memory.dmp

Filesize
5.7MB

Download
memory/5048-12-0x0000000074EF0000-0x00000000754A1000-memory.dmp

Filesize
5.7MB

Download
memory/5048-14-0x0000000074EF0000-0x00000000754A1000-memory.dmp

Filesize
5.7MB

Download
memory/5048-16-0x0000000074EF0000-0x00000000754A1000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads