njrat | 41b408aa63dfbb34c93d61206de020607822c3809efd07f006f07780c15f8a1c

General

Target

41b408aa63dfbb34c93d61206de020607822c3809efd07f006f07780c15f8a1cN.exe
Size

120KB
MD5

b15f2e47a62128a678121c801412bd20
SHA1

57d9f47b977b32fad210569fe619309f9ccb0b55
SHA256

41b408aa63dfbb34c93d61206de020607822c3809efd07f006f07780c15f8a1c
SHA512

9f001801c0894b57e991fe3cd7312679c8d0f094b9b541c867cff1969b97b198ffe3dd4d2b85c13fef3bb276f50e52df8187f4a8506bb9c2e8f361a558cd7c0e
SSDEEP

1536:WWp5eznKUlIOp3YjVCguHEvQEbFqVC3woFRKpT4XEQhuxzuMDL14FgOC:P5eznsjsguGDFqGZ2rDL14FgX

Score

10^/10

njrat neuf discovery evasion persistence privilege_escalation trojan

Malware Config

Extracted

Family

njrat

Version

0.7d

Botnet

neuf

C2

doddyfire.linkpc.net:10000

Mutex

e1a87040f2026369a233f9ae76301b7b

Attributes

reg_key
e1a87040f2026369a233f9ae76301b7b
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

pid	Process
4544	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	41b408aa63dfbb34c93d61206de020607822c3809efd07f006f07780c15f8a1cN.exe

Executes dropped EXE 2 IoCs

pid	Process
692	chargeable.exe
2276	chargeable.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\confuse = "C:\\Users\\Admin\\AppData\\Roaming\\confuse\\chargeable.exe"	41b408aa63dfbb34c93d61206de020607822c3809efd07f006f07780c15f8a1cN.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\SysMain = "C:\\Users\\Admin\\AppData\\Local\\Temp\\41b408aa63dfbb34c93d61206de020607822c3809efd07f006f07780c15f8a1cN.exe"	41b408aa63dfbb34c93d61206de020607822c3809efd07f006f07780c15f8a1cN.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 692 set thread context of 2276	692	chargeable.exe	97

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\WOW6432Node\Microsoft\NetSh	netsh.exe
Key queried	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key value enumerated	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe

System Location Discovery: System Language Discovery 1 TTPs 4 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	chargeable.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	chargeable.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	41b408aa63dfbb34c93d61206de020607822c3809efd07f006f07780c15f8a1cN.exe

Suspicious use of WriteProcessMemory 14 IoCs

description	pid	Process	procid_target
PID 3360 wrote to memory of 692	3360	41b408aa63dfbb34c93d61206de020607822c3809efd07f006f07780c15f8a1cN.exe	96
PID 3360 wrote to memory of 692	3360	41b408aa63dfbb34c93d61206de020607822c3809efd07f006f07780c15f8a1cN.exe	96
PID 3360 wrote to memory of 692	3360	41b408aa63dfbb34c93d61206de020607822c3809efd07f006f07780c15f8a1cN.exe	96
PID 692 wrote to memory of 2276	692	chargeable.exe	97
PID 692 wrote to memory of 2276	692	chargeable.exe	97
PID 692 wrote to memory of 2276	692	chargeable.exe	97
PID 692 wrote to memory of 2276	692	chargeable.exe	97
PID 692 wrote to memory of 2276	692	chargeable.exe	97
PID 692 wrote to memory of 2276	692	chargeable.exe	97
PID 692 wrote to memory of 2276	692	chargeable.exe	97
PID 692 wrote to memory of 2276	692	chargeable.exe	97
PID 2276 wrote to memory of 4544	2276	chargeable.exe	98
PID 2276 wrote to memory of 4544	2276	chargeable.exe	98
PID 2276 wrote to memory of 4544	2276	chargeable.exe	98

C:\Users\Admin\AppData\Local\Temp\41b408aa63dfbb34c93d61206de020607822c3809efd07f006f07780c15f8a1cN.exe
"C:\Users\Admin\AppData\Local\Temp\41b408aa63dfbb34c93d61206de020607822c3809efd07f006f07780c15f8a1cN.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3360
- C:\Users\Admin\AppData\Roaming\confuse\chargeable.exe
  "C:\Users\Admin\AppData\Roaming\confuse\chargeable.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:692
- - C:\Users\Admin\AppData\Roaming\confuse\chargeable.exe
    C:\Users\Admin\AppData\Roaming\confuse\chargeable.exe
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2276
  - - C:\Windows\SysWOW64\netsh.exe
      netsh firewall add allowedprogram "C:\Users\Admin\AppData\Roaming\confuse\chargeable.exe" "chargeable.exe" ENABLE
      4⤵
      Modifies Windows Firewall
      Event Triggered Execution: Netsh Helper DLL
      System Location Discovery: System Language Discovery
      PID:4544

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\Microsoft\CLR_v2.0_32\UsageLogs\chargeable.exe.log

Filesize
400B

MD5
0a9b4592cd49c3c21f6767c2dabda92f

SHA1
f534297527ae5ccc0ecb2221ddeb8e58daeb8b74

SHA256
c7effe9cb81a70d738dee863991afefab040290d4c4b78b4202383bcb9f88fcd

SHA512
6b878df474e5bbfb8e9e265f15a76560c2ef151dcebc6388c82d7f6f86ffaf83f5ade5a09f1842e493cb6c8fd63b0b88d088c728fd725f7139f965a5ee332307

Download Submit
C:\Users\Admin\AppData\Roaming\confuse\chargeable.exe

Filesize
120KB

MD5
ec8129461a21cb03199dfae917f8b7e5

SHA1
b35d50611676f19ec6a0440df15d9f778d20338d

SHA256
488d1f613ce84adcd66803e6ca9cc6d0e41fe5717f20f5442a7ea08ae53b6e16

SHA512
223a578eb5750a5f18c04e79b01eb4e2e76cb937cf1c88b2fd640280d5968cc80a9f759a6a97cf4023bca5d9cf1b03a9c0d179d5f828de6418b1afca09de5923

Download Submit
memory/692-28-0x0000000075560000-0x0000000075B11000-memory.dmp

Filesize
5.7MB

Download
memory/692-22-0x0000000075560000-0x0000000075B11000-memory.dmp

Filesize
5.7MB

Download
memory/692-21-0x0000000075560000-0x0000000075B11000-memory.dmp

Filesize
5.7MB

Download
memory/692-19-0x0000000075560000-0x0000000075B11000-memory.dmp

Filesize
5.7MB

Download
memory/2276-23-0x0000000000400000-0x000000000040C000-memory.dmp

Filesize
48KB

Download
memory/2276-27-0x0000000075560000-0x0000000075B11000-memory.dmp

Filesize
5.7MB

Download
memory/2276-30-0x0000000075560000-0x0000000075B11000-memory.dmp

Filesize
5.7MB

Download
memory/2276-29-0x0000000075560000-0x0000000075B11000-memory.dmp

Filesize
5.7MB

Download
memory/2276-31-0x0000000075560000-0x0000000075B11000-memory.dmp

Filesize
5.7MB

Download
memory/3360-2-0x0000000075560000-0x0000000075B11000-memory.dmp

Filesize
5.7MB

Download
memory/3360-20-0x0000000075560000-0x0000000075B11000-memory.dmp

Filesize
5.7MB

Download
memory/3360-7-0x0000000075560000-0x0000000075B11000-memory.dmp

Filesize
5.7MB

Download
memory/3360-6-0x0000000075562000-0x0000000075563000-memory.dmp

Filesize
4KB

Download
memory/3360-1-0x0000000075560000-0x0000000075B11000-memory.dmp

Filesize
5.7MB

Download
memory/3360-0-0x0000000075562000-0x0000000075563000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads