njrat | e4a773a3fd811af52ce9a7ad8fd62b6ad4d982feca495c3f36628eaa5d1dc855

General

Target

e4a773a3fd811af52ce9a7ad8fd62b6ad4d982feca495c3f36628eaa5d1dc855N.exe
Size

146KB
MD5

c74de5c9d74cc46305a5b548b70e94d0
SHA1

ffe5388c48ec856a62c9269e7bb51cfd5c352317
SHA256

e4a773a3fd811af52ce9a7ad8fd62b6ad4d982feca495c3f36628eaa5d1dc855
SHA512

94ca7cee4ebbf3a4334925c775f843c38ec4f3d5eb1c1d5d75aa941639d93c5851ac080edd5227650824d82c98cb8a054efc09f135d4b3b1b0fc98765c00cba0
SSDEEP

3072:+kBJ7P8M5LKUCrLUM3QO8baRY7HIxiLsVi2NCanGFlY/Ru7AlfuBUTfZEPC5KNgi:zP8MVGLUD

Score

10^/10

njrat hacked evasion persistence privilege_escalation trojan

Malware Config

Extracted

Family

njrat

Version

0.7d

Botnet

HacKed

C2

127.0.0.1:5552

Mutex

279f6960ed84a752570aca7fb2dc1552

Attributes

reg_key
279f6960ed84a752570aca7fb2dc1552
splitter
|'|'|

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
3484	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-1-5-21-945322488-2060912225-3527527000-1000\Control Panel\International\Geo\Nation	e4a773a3fd811af52ce9a7ad8fd62b6ad4d982feca495c3f36628eaa5d1dc855N.exe

Executes dropped EXE 1 IoCs

pid	Process
4484	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\Microsoft\Windows\CurrentVersion\Run\279f6960ed84a752570aca7fb2dc1552 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\server.exe\" .."	server.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-945322488-2060912225-3527527000-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\279f6960ed84a752570aca7fb2dc1552 = "\"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\Microsoft\NetSh	netsh.exe
Key opened	\REGISTRY\MACHINE\SOFTWARE\Microsoft\NetSh	netsh.exe
Key queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\NetSh	netsh.exe

Suspicious use of AdjustPrivilegeToken 27 IoCs

description	pid	Process
Token: SeDebugPrivilege	4484	server.exe
Token: 33	4484	server.exe
Token: SeIncBasePriorityPrivilege	4484	server.exe
Token: 33	4484	server.exe
Token: SeIncBasePriorityPrivilege	4484	server.exe
Token: 33	4484	server.exe
Token: SeIncBasePriorityPrivilege	4484	server.exe
Token: 33	4484	server.exe
Token: SeIncBasePriorityPrivilege	4484	server.exe
Token: 33	4484	server.exe
Token: SeIncBasePriorityPrivilege	4484	server.exe
Token: 33	4484	server.exe
Token: SeIncBasePriorityPrivilege	4484	server.exe
Token: 33	4484	server.exe
Token: SeIncBasePriorityPrivilege	4484	server.exe
Token: 33	4484	server.exe
Token: SeIncBasePriorityPrivilege	4484	server.exe
Token: 33	4484	server.exe
Token: SeIncBasePriorityPrivilege	4484	server.exe
Token: 33	4484	server.exe
Token: SeIncBasePriorityPrivilege	4484	server.exe
Token: 33	4484	server.exe
Token: SeIncBasePriorityPrivilege	4484	server.exe
Token: 33	4484	server.exe
Token: SeIncBasePriorityPrivilege	4484	server.exe
Token: 33	4484	server.exe
Token: SeIncBasePriorityPrivilege	4484	server.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 812 wrote to memory of 4484	812	e4a773a3fd811af52ce9a7ad8fd62b6ad4d982feca495c3f36628eaa5d1dc855N.exe	84
PID 812 wrote to memory of 4484	812	e4a773a3fd811af52ce9a7ad8fd62b6ad4d982feca495c3f36628eaa5d1dc855N.exe	84
PID 4484 wrote to memory of 3484	4484	server.exe	88
PID 4484 wrote to memory of 3484	4484	server.exe	88

C:\Users\Admin\AppData\Local\Temp\e4a773a3fd811af52ce9a7ad8fd62b6ad4d982feca495c3f36628eaa5d1dc855N.exe
"C:\Users\Admin\AppData\Local\Temp\e4a773a3fd811af52ce9a7ad8fd62b6ad4d982feca495c3f36628eaa5d1dc855N.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:812
- 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
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:4484
- - C:\Windows\SYSTEM32\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
    PID:3484

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\Local\Temp\server.exe

Filesize
146KB

MD5
c74de5c9d74cc46305a5b548b70e94d0

SHA1
ffe5388c48ec856a62c9269e7bb51cfd5c352317

SHA256
e4a773a3fd811af52ce9a7ad8fd62b6ad4d982feca495c3f36628eaa5d1dc855

SHA512
94ca7cee4ebbf3a4334925c775f843c38ec4f3d5eb1c1d5d75aa941639d93c5851ac080edd5227650824d82c98cb8a054efc09f135d4b3b1b0fc98765c00cba0

Download Submit
memory/812-3-0x00007FFE70A20000-0x00007FFE713C1000-memory.dmp

Filesize
9.6MB

Download
memory/812-2-0x00007FFE70A20000-0x00007FFE713C1000-memory.dmp

Filesize
9.6MB

Download
memory/812-0-0x00007FFE70CD5000-0x00007FFE70CD6000-memory.dmp

Filesize
4KB

Download
memory/812-4-0x000000001B6B0000-0x000000001B6BC000-memory.dmp

Filesize
48KB

Download
memory/812-5-0x000000001BCC0000-0x000000001C18E000-memory.dmp

Filesize
4.8MB

Download
memory/812-1-0x000000001B740000-0x000000001B7E6000-memory.dmp

Filesize
664KB

Download
memory/812-19-0x00007FFE70A20000-0x00007FFE713C1000-memory.dmp

Filesize
9.6MB

Download
memory/4484-18-0x00007FFE70A20000-0x00007FFE713C1000-memory.dmp

Filesize
9.6MB

Download
memory/4484-20-0x00007FFE70A20000-0x00007FFE713C1000-memory.dmp

Filesize
9.6MB

Download
memory/4484-21-0x00007FFE70A20000-0x00007FFE713C1000-memory.dmp

Filesize
9.6MB

Download
memory/4484-22-0x000000001C8F0000-0x000000001C98C000-memory.dmp

Filesize
624KB

Download
memory/4484-23-0x00000000017F0000-0x00000000017F8000-memory.dmp

Filesize
32KB

Download
memory/4484-24-0x00007FFE70A20000-0x00007FFE713C1000-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