njrat | f1f4a97525f047c84ec6fcc2b6cbf23634cade68ee984584aff989d179f0a470

Analysis

max time kernel
149s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20240508-en
resource tags

arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
submitted
18/06/2024, 06:26

Sharing

Copy URL Twitter E-mail

Report Analysis Logs

General

Target
76403c3e644745fe244e51d4e97923db.exe
Size 115KB
Sample240618-g67c8averk
SHA256 f1f4a97525f047c84ec6fcc2b6cbf23634cade68ee984584aff989d179f0a470
MD5 76403c3e644745fe244e51d4e97923db
SHA1 886bf2da1720644dd9fdf8c6edf0b42bf00bc887
SHA512 a0d4dbd544e305942753a111336f98cf27247c6580d786401af681ded078308dc3654bf8c417f6528461d49457df1c0e15d7a16ed468c18000a279e70299bcc0
SSDEEP 1536:WWp5eznKUlIOp3YjVCguHEvQEbFqVC3woFRKpT4XEQhuxzuMiat6y:P5eznsjsguGDFqGZ2riy
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

njrat neuf evasion persistence trojan

Malware Config

Extracted

Family

njrat

Version

0.7d

Botnet

neuf

doddyfire.linkpc.net:10000

Mutex

e1a87040f2026369a233f9ae76301b7b

Attributes

reg_key
e1a87040f2026369a233f9ae76301b7b
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
4652	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-1-5-21-2539840389-1261165778-1087677076-1000\Control Panel\International\Geo\Nation	76403c3e644745fe244e51d4e97923db.exe

Executes dropped EXE 2 IoCs

pid	Process
3660	chargeable.exe
2656	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-1-5-21-2539840389-1261165778-1087677076-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\SysMain = "C:\\Users\\Admin\\AppData\\Local\\Temp\\76403c3e644745fe244e51d4e97923db.exe"	76403c3e644745fe244e51d4e97923db.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2539840389-1261165778-1087677076-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\confuse = "C:\\Users\\Admin\\AppData\\Roaming\\confuse\\chargeable.exe"	76403c3e644745fe244e51d4e97923db.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3660 set thread context of 2656	3660	chargeable.exe	82

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Suspicious use of AdjustPrivilegeToken 33 IoCs

description	pid	Process
Token: SeDebugPrivilege	2656	chargeable.exe
Token: 33	2656	chargeable.exe
Token: SeIncBasePriorityPrivilege	2656	chargeable.exe
Token: 33	2656	chargeable.exe
Token: SeIncBasePriorityPrivilege	2656	chargeable.exe
Token: 33	2656	chargeable.exe
Token: SeIncBasePriorityPrivilege	2656	chargeable.exe
Token: 33	2656	chargeable.exe
Token: SeIncBasePriorityPrivilege	2656	chargeable.exe
Token: 33	2656	chargeable.exe
Token: SeIncBasePriorityPrivilege	2656	chargeable.exe
Token: 33	2656	chargeable.exe
Token: SeIncBasePriorityPrivilege	2656	chargeable.exe
Token: 33	2656	chargeable.exe
Token: SeIncBasePriorityPrivilege	2656	chargeable.exe
Token: 33	2656	chargeable.exe
Token: SeIncBasePriorityPrivilege	2656	chargeable.exe
Token: 33	2656	chargeable.exe
Token: SeIncBasePriorityPrivilege	2656	chargeable.exe
Token: 33	2656	chargeable.exe
Token: SeIncBasePriorityPrivilege	2656	chargeable.exe
Token: 33	2656	chargeable.exe
Token: SeIncBasePriorityPrivilege	2656	chargeable.exe
Token: 33	2656	chargeable.exe
Token: SeIncBasePriorityPrivilege	2656	chargeable.exe
Token: 33	2656	chargeable.exe
Token: SeIncBasePriorityPrivilege	2656	chargeable.exe
Token: 33	2656	chargeable.exe
Token: SeIncBasePriorityPrivilege	2656	chargeable.exe
Token: 33	2656	chargeable.exe
Token: SeIncBasePriorityPrivilege	2656	chargeable.exe
Token: 33	2656	chargeable.exe
Token: SeIncBasePriorityPrivilege	2656	chargeable.exe

Suspicious use of WriteProcessMemory 14 IoCs

description	pid	Process	procid_target
PID 4624 wrote to memory of 3660	4624	76403c3e644745fe244e51d4e97923db.exe	81
PID 4624 wrote to memory of 3660	4624	76403c3e644745fe244e51d4e97923db.exe	81
PID 4624 wrote to memory of 3660	4624	76403c3e644745fe244e51d4e97923db.exe	81
PID 3660 wrote to memory of 2656	3660	chargeable.exe	82
PID 3660 wrote to memory of 2656	3660	chargeable.exe	82
PID 3660 wrote to memory of 2656	3660	chargeable.exe	82
PID 3660 wrote to memory of 2656	3660	chargeable.exe	82
PID 3660 wrote to memory of 2656	3660	chargeable.exe	82
PID 3660 wrote to memory of 2656	3660	chargeable.exe	82
PID 3660 wrote to memory of 2656	3660	chargeable.exe	82
PID 3660 wrote to memory of 2656	3660	chargeable.exe	82
PID 2656 wrote to memory of 4652	2656	chargeable.exe	83
PID 2656 wrote to memory of 4652	2656	chargeable.exe	83
PID 2656 wrote to memory of 4652	2656	chargeable.exe	83

C:\Users\Admin\AppData\Local\Temp\76403c3e644745fe244e51d4e97923db.exe
"C:\Users\Admin\AppData\Local\Temp\76403c3e644745fe244e51d4e97923db.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:4624
- C:\Users\Admin\AppData\Roaming\confuse\chargeable.exe
  "C:\Users\Admin\AppData\Roaming\confuse\chargeable.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetThreadContext
  - Suspicious use of WriteProcessMemory
  PID:3660
- - C:\Users\Admin\AppData\Roaming\confuse\chargeable.exe
    C:\Users\Admin\AppData\Roaming\confuse\chargeable.exe
    3⤵
    - Executes dropped EXE
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of WriteProcessMemory
    PID:2656
  - - C:\Windows\SysWOW64\netsh.exe
      netsh firewall add allowedprogram "C:\Users\Admin\AppData\Roaming\confuse\chargeable.exe" "chargeable.exe" ENABLE
      4⤵
      Modifies Windows Firewall
      PID:4652

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Create or Modify System Process

T1543

Windows Service

T1543.003

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Create or Modify System Process

T1543

Windows Service

T1543.003

Defense Evasion

Impair Defenses

T1562

Disable or Modify System Firewall

T1562.004

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

chargeable.exe.log

Path C:\Users\Admin\AppData\Local\Microsoft\CLR_v2.0_32\UsageLogs\chargeable.exe.log
Size 400B
SHA256 c7effe9cb81a70d738dee863991afefab040290d4c4b78b4202383bcb9f88fcd
MD5 0a9b4592cd49c3c21f6767c2dabda92f
SHA1 f534297527ae5ccc0ecb2221ddeb8e58daeb8b74
SHA512 6b878df474e5bbfb8e9e265f15a76560c2ef151dcebc6388c82d7f6f86ffaf83f5ade5a09f1842e493cb6c8fd63b0b88d088c728fd725f7139f965a5ee332307
MD5 SHA1 SHA512

Submit Download

chargeable.exe

Path C:\Users\Admin\AppData\Roaming\confuse\chargeable.exe
Size 115KB
SHA256 f69138392c8fcaa080db36f34977b6acc07673361eee323f9cc60b0c2947b58b
MD5 ad2d2ba217d11612261500c7c8e0e645
SHA1 f3eadb67475c36b69c761092d97a88f3635c4feb
SHA512 4a6a32d21bc877f8a2801242e882eb22478dcd48bdaa4036d27d82419450044383e1c0f6ee9a631d297b88fa5f143dfe83faccb8bcc0950a93bcf2db2d2832da
SSDEEP 1536:WWp5eznKUlIOp3YjVCguHEvQEbFqVC3woFRKpT4XEQhuxzuMiat6J:P5eznsjsguGDFqGZ2riJ
MD5 SHA1 SHA512 SSDEEP

Submit Download

memory/2656-21-0x0000000000400000-0x000000000040C000-memory.dmp

Download

memory/2656-25-0x0000000075020000-0x00000000755D1000-memory.dmp

Download

memory/2656-27-0x0000000075020000-0x00000000755D1000-memory.dmp

Download

memory/2656-28-0x0000000075020000-0x00000000755D1000-memory.dmp

Download

memory/3660-18-0x0000000075020000-0x00000000755D1000-memory.dmp

Download

memory/3660-20-0x0000000075020000-0x00000000755D1000-memory.dmp

Download

memory/3660-19-0x0000000075020000-0x00000000755D1000-memory.dmp

Download

memory/3660-26-0x0000000075020000-0x00000000755D1000-memory.dmp

Download

memory/4624-2-0x0000000075020000-0x00000000755D1000-memory.dmp

Download

memory/4624-0-0x0000000075022000-0x0000000075023000-memory.dmp

Download

memory/4624-17-0x0000000075020000-0x00000000755D1000-memory.dmp

Download

memory/4624-1-0x0000000075020000-0x00000000755D1000-memory.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads