njrat | a4b72bc722028cec151ea4989fc19607f6b78d7dba90ce89b23355cffab6a101

General

Target

report.exe
Size

171KB
MD5

0490e4682182beb78dbd1d38a0c06710
SHA1

21630d537409fc3543096ce2fbbff703a249cdf8
SHA256

b47ffaafc061171b1e974de37aa21fdc15fa27a70641e03b1c103cad70feb445
SHA512

9efc319632c067402e264b25157100082c6b7b10fe69447e081a174a2a4ec5b6cc7a5b8e487e83ff80d5e0c6760edea5dfdd197532cb7b65631ab6c67c4fffc6
SSDEEP

3072:EGq0qx4vehcVKrlgYTep7TReAQYgRU1f8Ev0VevFpP3Bm51bGAQJKuQ3:fq0qxvlyh7g/YgR4fJFpP3Bm51Ta

Score

10^/10

njrat hacked evasion persistence privilege_escalation trojan

Malware Config

Extracted

Family

njrat

Version

0.6.4

Botnet

HacKed

C2

m100.no-ip.info:7777

Mutex

152db0c690a8f99c617fcaae2b84e3d0

Attributes

reg_key
152db0c690a8f99c617fcaae2b84e3d0
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
4888	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-1-5-21-2718105630-359604950-2820636825-1000\Control Panel\International\Geo\Nation	report.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\152db0c690a8f99c617fcaae2b84e3d0.exe	nchost.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\152db0c690a8f99c617fcaae2b84e3d0.exe	nchost.exe

Executes dropped EXE 1 IoCs

pid	Process
1240	nchost.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\152db0c690a8f99c617fcaae2b84e3d0 = "\"C:\\Users\\Admin\\AppData\\Roaming\\nchost.exe\" .."	nchost.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2718105630-359604950-2820636825-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\152db0c690a8f99c617fcaae2b84e3d0 = "\"C:\\Users\\Admin\\AppData\\Roaming\\nchost.exe\" .."	nchost.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 behavior: EnumeratesProcesses 48 IoCs

pid	Process
1240	nchost.exe
1240	nchost.exe
1240	nchost.exe
1240	nchost.exe
1240	nchost.exe
1240	nchost.exe
1240	nchost.exe
1240	nchost.exe
1240	nchost.exe
1240	nchost.exe
1240	nchost.exe
1240	nchost.exe
1240	nchost.exe
1240	nchost.exe
1240	nchost.exe
1240	nchost.exe
1240	nchost.exe
1240	nchost.exe
1240	nchost.exe
1240	nchost.exe
1240	nchost.exe
1240	nchost.exe
1240	nchost.exe
1240	nchost.exe
1240	nchost.exe
1240	nchost.exe
1240	nchost.exe
1240	nchost.exe
1240	nchost.exe
1240	nchost.exe
1240	nchost.exe
1240	nchost.exe
1240	nchost.exe
1240	nchost.exe
1240	nchost.exe
1240	nchost.exe
1240	nchost.exe
1240	nchost.exe
1240	nchost.exe
1240	nchost.exe
1240	nchost.exe
1240	nchost.exe
1240	nchost.exe
1240	nchost.exe
1240	nchost.exe
1240	nchost.exe
1240	nchost.exe
1240	nchost.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1240	nchost.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1648 wrote to memory of 1240	1648	report.exe	82
PID 1648 wrote to memory of 1240	1648	report.exe	82
PID 1240 wrote to memory of 4888	1240	nchost.exe	83
PID 1240 wrote to memory of 4888	1240	nchost.exe	83

C:\Users\Admin\AppData\Local\Temp\report.exe
"C:\Users\Admin\AppData\Local\Temp\report.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:1648
- C:\Users\Admin\AppData\Roaming\nchost.exe
  "C:\Users\Admin\AppData\Roaming\nchost.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:1240
- - C:\Windows\SYSTEM32\netsh.exe
    netsh firewall add allowedprogram "C:\Users\Admin\AppData\Roaming\nchost.exe" "nchost.exe" ENABLE
    3⤵
    - Modifies Windows Firewall
    - Event Triggered Execution: Netsh Helper DLL
    PID:4888

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\nchost.exe

Filesize
171KB

MD5
0490e4682182beb78dbd1d38a0c06710

SHA1
21630d537409fc3543096ce2fbbff703a249cdf8

SHA256
b47ffaafc061171b1e974de37aa21fdc15fa27a70641e03b1c103cad70feb445

SHA512
9efc319632c067402e264b25157100082c6b7b10fe69447e081a174a2a4ec5b6cc7a5b8e487e83ff80d5e0c6760edea5dfdd197532cb7b65631ab6c67c4fffc6

Download Submit
memory/1240-23-0x00000000010A0000-0x00000000010B2000-memory.dmp

Filesize
72KB

Download
memory/1240-22-0x00007FFF287F0000-0x00007FFF29191000-memory.dmp

Filesize
9.6MB

Download
memory/1240-28-0x00007FFF287F0000-0x00007FFF29191000-memory.dmp

Filesize
9.6MB

Download
memory/1240-27-0x0000000001240000-0x0000000001248000-memory.dmp

Filesize
32KB

Download
memory/1240-20-0x00007FFF287F0000-0x00007FFF29191000-memory.dmp

Filesize
9.6MB

Download
memory/1240-26-0x000000001C6C0000-0x000000001C75C000-memory.dmp

Filesize
624KB

Download
memory/1240-24-0x00007FFF287F0000-0x00007FFF29191000-memory.dmp

Filesize
9.6MB

Download
memory/1648-7-0x000000001BE70000-0x000000001C33E000-memory.dmp

Filesize
4.8MB

Download
memory/1648-5-0x000000001B8F0000-0x000000001B996000-memory.dmp

Filesize
664KB

Download
memory/1648-21-0x00007FFF287F0000-0x00007FFF29191000-memory.dmp

Filesize
9.6MB

Download
memory/1648-1-0x00007FFF287F0000-0x00007FFF29191000-memory.dmp

Filesize
9.6MB

Download
memory/1648-0-0x00007FFF28AA5000-0x00007FFF28AA6000-memory.dmp

Filesize
4KB

Download
memory/1648-2-0x0000000000E90000-0x0000000000EA2000-memory.dmp

Filesize
72KB

Download
memory/1648-6-0x0000000000F00000-0x0000000000F0E000-memory.dmp

Filesize
56KB

Download
memory/1648-4-0x000000001B590000-0x000000001B5BC000-memory.dmp

Filesize
176KB

Download
memory/1648-3-0x00007FFF287F0000-0x00007FFF29191000-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