njrat | b67bac97cb1ab1f7487b9b90a22de39cfac5c5e39f569e0e761ff40476ae0dd6

General

Target

b67bac97cb1ab1f7487b9b90a22de39cfac5c5e39f569e0e761ff40476ae0dd6N.exe
Size

71KB
MD5

a3e86a6a1a141f274851a3502037b980
SHA1

741c4ea32737cee7eb8e17580be198287065e693
SHA256

b67bac97cb1ab1f7487b9b90a22de39cfac5c5e39f569e0e761ff40476ae0dd6
SHA512

e60f2f13c555145e75505cacfef9edc6baf7bac37499ff4ccda52467c09fbed55a83c78b5152eb91abd6cc0ef3dd41c0fbb4f991fca87443460f43fc767d7ed6
SSDEEP

1536:6Uvs42tjhOUFWCsiSWS2RXEoZzD3lS3sKn61z1Fb9b:6U0DjkLfaR5hg3sdrt

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
3748	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-1-5-21-2412658365-3084825385-3340777666-1000\Control Panel\International\Geo\Nation	b67bac97cb1ab1f7487b9b90a22de39cfac5c5e39f569e0e761ff40476ae0dd6N.exe

Executes dropped EXE 1 IoCs

pid	Process
4220	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-1-5-21-2412658365-3084825385-3340777666-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\279f6960ed84a752570aca7fb2dc1552 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\server.exe\" .."	server.exe
Set value (str)	\REGISTRY\MACHINE\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 opened	\REGISTRY\MACHINE\SOFTWARE\Microsoft\NetSh	netsh.exe
Key queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\NetSh	netsh.exe
Key value enumerated	\REGISTRY\MACHINE\SOFTWARE\Microsoft\NetSh	netsh.exe

Suspicious use of AdjustPrivilegeToken 27 IoCs

description	pid	Process
Token: SeDebugPrivilege	4220	server.exe
Token: 33	4220	server.exe
Token: SeIncBasePriorityPrivilege	4220	server.exe
Token: 33	4220	server.exe
Token: SeIncBasePriorityPrivilege	4220	server.exe
Token: 33	4220	server.exe
Token: SeIncBasePriorityPrivilege	4220	server.exe
Token: 33	4220	server.exe
Token: SeIncBasePriorityPrivilege	4220	server.exe
Token: 33	4220	server.exe
Token: SeIncBasePriorityPrivilege	4220	server.exe
Token: 33	4220	server.exe
Token: SeIncBasePriorityPrivilege	4220	server.exe
Token: 33	4220	server.exe
Token: SeIncBasePriorityPrivilege	4220	server.exe
Token: 33	4220	server.exe
Token: SeIncBasePriorityPrivilege	4220	server.exe
Token: 33	4220	server.exe
Token: SeIncBasePriorityPrivilege	4220	server.exe
Token: 33	4220	server.exe
Token: SeIncBasePriorityPrivilege	4220	server.exe
Token: 33	4220	server.exe
Token: SeIncBasePriorityPrivilege	4220	server.exe
Token: 33	4220	server.exe
Token: SeIncBasePriorityPrivilege	4220	server.exe
Token: 33	4220	server.exe
Token: SeIncBasePriorityPrivilege	4220	server.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1836 wrote to memory of 4220	1836	b67bac97cb1ab1f7487b9b90a22de39cfac5c5e39f569e0e761ff40476ae0dd6N.exe	89
PID 1836 wrote to memory of 4220	1836	b67bac97cb1ab1f7487b9b90a22de39cfac5c5e39f569e0e761ff40476ae0dd6N.exe	89
PID 4220 wrote to memory of 3748	4220	server.exe	94
PID 4220 wrote to memory of 3748	4220	server.exe	94

C:\Users\Admin\AppData\Local\Temp\b67bac97cb1ab1f7487b9b90a22de39cfac5c5e39f569e0e761ff40476ae0dd6N.exe
"C:\Users\Admin\AppData\Local\Temp\b67bac97cb1ab1f7487b9b90a22de39cfac5c5e39f569e0e761ff40476ae0dd6N.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:1836
- 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:4220
- - 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:3748

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

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\server.exe

Filesize
71KB

MD5
a3e86a6a1a141f274851a3502037b980

SHA1
741c4ea32737cee7eb8e17580be198287065e693

SHA256
b67bac97cb1ab1f7487b9b90a22de39cfac5c5e39f569e0e761ff40476ae0dd6

SHA512
e60f2f13c555145e75505cacfef9edc6baf7bac37499ff4ccda52467c09fbed55a83c78b5152eb91abd6cc0ef3dd41c0fbb4f991fca87443460f43fc767d7ed6

Download Submit
memory/1836-0-0x00007FF9BBE83000-0x00007FF9BBE85000-memory.dmp

Filesize
8KB

Download
memory/1836-1-0x000001C8271D0000-0x000001C8271E8000-memory.dmp

Filesize
96KB

Download
memory/1836-2-0x000001C828EB0000-0x000001C828ED2000-memory.dmp

Filesize
136KB

Download
memory/1836-3-0x000001C828D40000-0x000001C828D4C000-memory.dmp

Filesize
48KB

Download
memory/1836-4-0x00007FF9BBE80000-0x00007FF9BC941000-memory.dmp

Filesize
10.8MB

Download
memory/1836-16-0x00007FF9BBE80000-0x00007FF9BC941000-memory.dmp

Filesize
10.8MB

Download
memory/4220-18-0x00007FF9BBE80000-0x00007FF9BC941000-memory.dmp

Filesize
10.8MB

Download
memory/4220-19-0x00007FF9BBE80000-0x00007FF9BC941000-memory.dmp

Filesize
10.8MB

Download
memory/4220-20-0x00007FF9BBE80000-0x00007FF9BC941000-memory.dmp

Filesize
10.8MB

Download
memory/4220-21-0x00007FF9BBE80000-0x00007FF9BC941000-memory.dmp

Filesize
10.8MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads