njrat | 7e5cdb1f90f0fe63a1ae0ae850d61da4e56ae23d53041fd9e14002761ffb4e2e

General

Target

7e5cdb1f90f0fe63a1ae0ae850d61da4e56ae23d53041fd9e14002761ffb4e2e.exe
Size

649KB
MD5

d5cfb8356001e1ea478e2f66648f132b
SHA1

5d4b419bbd52f0ac2f682b46fefffed6e7621b48
SHA256

7e5cdb1f90f0fe63a1ae0ae850d61da4e56ae23d53041fd9e14002761ffb4e2e
SHA512

9f02f9086f3f88914b9062fa41f225b32721d528f6036ce5430ec2225a51ba2ce596c98a51a2b85fcb261c196ac42e0c2a3f8c57a6254c264ee7cd9cc4477abf
SSDEEP

6144:TGxP9WE3Ow/2pVNqVotvLDkivApjJRVg+U/+vNl0MAyigSNiRU9/kXkxioatQ9U3:CxIExJiynfUerAyDQCkxjIfBWMt

Score

10^/10

njrat hacker evasion persistence privilege_escalation trojan

Malware Config

Extracted

Family

njrat

Version

0.6.4

Botnet

Hacker

C2

154.176.159.102:1177

Mutex

8b8934ec24fc05c5f20511aa61ac2fa9

Attributes

reg_key
8b8934ec24fc05c5f20511aa61ac2fa9
splitter
|'|'|

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

Processes:

netsh.exe

pid	Process
3788	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

Processes:

7e5cdb1f90f0fe63a1ae0ae850d61da4e56ae23d53041fd9e14002761ffb4e2e.exe

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\Control Panel\International\Geo\Nation	7e5cdb1f90f0fe63a1ae0ae850d61da4e56ae23d53041fd9e14002761ffb4e2e.exe

Drops startup file 2 IoCs

Processes:

Server.exe

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\8b8934ec24fc05c5f20511aa61ac2fa9.exe	Server.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\8b8934ec24fc05c5f20511aa61ac2fa9.exe	Server.exe

Executes dropped EXE 1 IoCs

Processes:

Server.exe

pid	Process
4796	Server.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

Server.exe

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\8b8934ec24fc05c5f20511aa61ac2fa9 = "\"C:\\Users\\Admin\\AppData\\Roaming\\Server.exe\" .."	Server.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\8b8934ec24fc05c5f20511aa61ac2fa9 = "\"C:\\Users\\Admin\\AppData\\Roaming\\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

Processes:

netsh.exe

description	ioc	Process
Key value enumerated	\REGISTRY\MACHINE\SOFTWARE\Microsoft\NetSh	netsh.exe
Key opened	\REGISTRY\MACHINE\SOFTWARE\Microsoft\NetSh	netsh.exe
Key queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\NetSh	netsh.exe

Suspicious behavior: EnumeratesProcesses 24 IoCs

Processes:

Server.exe

pid	Process
4796	Server.exe
4796	Server.exe
4796	Server.exe
4796	Server.exe
4796	Server.exe
4796	Server.exe
4796	Server.exe
4796	Server.exe
4796	Server.exe
4796	Server.exe
4796	Server.exe
4796	Server.exe
4796	Server.exe
4796	Server.exe
4796	Server.exe
4796	Server.exe
4796	Server.exe
4796	Server.exe
4796	Server.exe
4796	Server.exe
4796	Server.exe
4796	Server.exe
4796	Server.exe
4796	Server.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

Server.exe

description	pid	Process
Token: SeDebugPrivilege	4796	Server.exe

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

7e5cdb1f90f0fe63a1ae0ae850d61da4e56ae23d53041fd9e14002761ffb4e2e.exeServer.exe

description	pid	Process	procid_target
PID 3428 wrote to memory of 4796	3428	7e5cdb1f90f0fe63a1ae0ae850d61da4e56ae23d53041fd9e14002761ffb4e2e.exe	91
PID 3428 wrote to memory of 4796	3428	7e5cdb1f90f0fe63a1ae0ae850d61da4e56ae23d53041fd9e14002761ffb4e2e.exe	91
PID 4796 wrote to memory of 3788	4796	Server.exe	92
PID 4796 wrote to memory of 3788	4796	Server.exe	92

C:\Users\Admin\AppData\Local\Temp\7e5cdb1f90f0fe63a1ae0ae850d61da4e56ae23d53041fd9e14002761ffb4e2e.exe
"C:\Users\Admin\AppData\Local\Temp\7e5cdb1f90f0fe63a1ae0ae850d61da4e56ae23d53041fd9e14002761ffb4e2e.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:3428
- C:\Users\Admin\AppData\Roaming\Server.exe
  "C:\Users\Admin\AppData\Roaming\Server.exe"
  2⤵
  - Drops startup file
  - Executes dropped EXE
  - Adds Run key to start application
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:4796
- - C:\Windows\SYSTEM32\netsh.exe
    netsh firewall add allowedprogram "C:\Users\Admin\AppData\Roaming\Server.exe" "Server.exe" ENABLE
    3⤵
    - Modifies Windows Firewall
    - Event Triggered Execution: Netsh Helper DLL
    PID:3788

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

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Roaming\Server.exe

Filesize
649KB

MD5
d5cfb8356001e1ea478e2f66648f132b

SHA1
5d4b419bbd52f0ac2f682b46fefffed6e7621b48

SHA256
7e5cdb1f90f0fe63a1ae0ae850d61da4e56ae23d53041fd9e14002761ffb4e2e

SHA512
9f02f9086f3f88914b9062fa41f225b32721d528f6036ce5430ec2225a51ba2ce596c98a51a2b85fcb261c196ac42e0c2a3f8c57a6254c264ee7cd9cc4477abf

Download Submit
memory/3428-10-0x00007FF915CC5000-0x00007FF915CC6000-memory.dmp

Filesize
4KB

Download
memory/3428-5-0x000000001C940000-0x000000001C9DC000-memory.dmp

Filesize
624KB

Download
memory/3428-11-0x00007FF915A10000-0x00007FF9163B1000-memory.dmp

Filesize
9.6MB

Download
memory/3428-1-0x00007FF915A10000-0x00007FF9163B1000-memory.dmp

Filesize
9.6MB

Download
memory/3428-12-0x000000001CCB0000-0x000000001CCBE000-memory.dmp

Filesize
56KB

Download
memory/3428-6-0x00007FF915A10000-0x00007FF9163B1000-memory.dmp

Filesize
9.6MB

Download
memory/3428-7-0x0000000001520000-0x0000000001528000-memory.dmp

Filesize
32KB

Download
memory/3428-8-0x000000001CAB0000-0x000000001CAFC000-memory.dmp

Filesize
304KB

Download
memory/3428-9-0x00007FF915A10000-0x00007FF9163B1000-memory.dmp

Filesize
9.6MB

Download
memory/3428-0-0x00007FF915CC5000-0x00007FF915CC6000-memory.dmp

Filesize
4KB

Download
memory/3428-3-0x000000001BAB0000-0x000000001BAD6000-memory.dmp

Filesize
152KB

Download
memory/3428-2-0x000000001B9D0000-0x000000001BA76000-memory.dmp

Filesize
664KB

Download
memory/3428-4-0x000000001C3D0000-0x000000001C89E000-memory.dmp

Filesize
4.8MB

Download
memory/3428-26-0x00007FF915A10000-0x00007FF9163B1000-memory.dmp

Filesize
9.6MB

Download
memory/4796-27-0x00007FF915A10000-0x00007FF9163B1000-memory.dmp

Filesize
9.6MB

Download
memory/4796-25-0x00007FF915A10000-0x00007FF9163B1000-memory.dmp

Filesize
9.6MB

Download
memory/4796-28-0x00007FF915A10000-0x00007FF9163B1000-memory.dmp

Filesize
9.6MB

Download
memory/4796-29-0x00007FF915A10000-0x00007FF9163B1000-memory.dmp

Filesize
9.6MB

Download
memory/4796-30-0x00007FF915A10000-0x00007FF9163B1000-memory.dmp

Filesize
9.6MB

Download
memory/4796-32-0x00007FF915A10000-0x00007FF9163B1000-memory.dmp

Filesize
9.6MB

Download
memory/4796-33-0x00007FF915A10000-0x00007FF9163B1000-memory.dmp

Filesize
9.6MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads