njrat | c9ab1615da4eb661e347aed48b91b4b1490322bc6a3a743cf87657df38150d1f

Analysis

max time kernel
147s
max time network
148s
platform
windows10-2004_x64
resource
win10v2004-20240508-en
resource tags

arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
submitted
27/05/2024, 01:15

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General

Target
c9ab1615da4eb661e347aed48b91b4b1490322bc6a3a743cf87657df38150d1f.exe
Size 114KB
Sample240527-bmkr8aba61
SHA256 c9ab1615da4eb661e347aed48b91b4b1490322bc6a3a743cf87657df38150d1f
MD5 051fbfff157042910851c479f8f54069
SHA1 035006543e908813d46f5ee95fb0f3c54af7e701
SHA512 ac582d3c3b666323aa29f96aa3574a1ffa3d7bca140608fbf8b22150accac8bd504e9dda4940694fcc2351b3099aa0c57b969438e949df5ae8dad4f6b57dcf4a
SSDEEP 1536:WWp5eznKUlIOp3YjVCguHEvQEbFqVC3woFRKpT4XEQhuxzuMDwT:P5eznsjsguGDFqGZ2rDwT
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
452	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	c9ab1615da4eb661e347aed48b91b4b1490322bc6a3a743cf87657df38150d1f.exe

Executes dropped EXE 2 IoCs

pid	Process
2320	chargeable.exe
4992	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\confuse = "C:\\Users\\Admin\\AppData\\Roaming\\confuse\\chargeable.exe"	c9ab1615da4eb661e347aed48b91b4b1490322bc6a3a743cf87657df38150d1f.exe
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\\c9ab1615da4eb661e347aed48b91b4b1490322bc6a3a743cf87657df38150d1f.exe"	c9ab1615da4eb661e347aed48b91b4b1490322bc6a3a743cf87657df38150d1f.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2320 set thread context of 4992	2320	chargeable.exe	96

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	4992	chargeable.exe
Token: 33	4992	chargeable.exe
Token: SeIncBasePriorityPrivilege	4992	chargeable.exe
Token: 33	4992	chargeable.exe
Token: SeIncBasePriorityPrivilege	4992	chargeable.exe
Token: 33	4992	chargeable.exe
Token: SeIncBasePriorityPrivilege	4992	chargeable.exe
Token: 33	4992	chargeable.exe
Token: SeIncBasePriorityPrivilege	4992	chargeable.exe
Token: 33	4992	chargeable.exe
Token: SeIncBasePriorityPrivilege	4992	chargeable.exe
Token: 33	4992	chargeable.exe
Token: SeIncBasePriorityPrivilege	4992	chargeable.exe
Token: 33	4992	chargeable.exe
Token: SeIncBasePriorityPrivilege	4992	chargeable.exe
Token: 33	4992	chargeable.exe
Token: SeIncBasePriorityPrivilege	4992	chargeable.exe
Token: 33	4992	chargeable.exe
Token: SeIncBasePriorityPrivilege	4992	chargeable.exe
Token: 33	4992	chargeable.exe
Token: SeIncBasePriorityPrivilege	4992	chargeable.exe
Token: 33	4992	chargeable.exe
Token: SeIncBasePriorityPrivilege	4992	chargeable.exe
Token: 33	4992	chargeable.exe
Token: SeIncBasePriorityPrivilege	4992	chargeable.exe
Token: 33	4992	chargeable.exe
Token: SeIncBasePriorityPrivilege	4992	chargeable.exe
Token: 33	4992	chargeable.exe
Token: SeIncBasePriorityPrivilege	4992	chargeable.exe
Token: 33	4992	chargeable.exe
Token: SeIncBasePriorityPrivilege	4992	chargeable.exe
Token: 33	4992	chargeable.exe
Token: SeIncBasePriorityPrivilege	4992	chargeable.exe

Suspicious use of WriteProcessMemory 14 IoCs

description	pid	Process	procid_target
PID 3176 wrote to memory of 2320	3176	c9ab1615da4eb661e347aed48b91b4b1490322bc6a3a743cf87657df38150d1f.exe	93
PID 3176 wrote to memory of 2320	3176	c9ab1615da4eb661e347aed48b91b4b1490322bc6a3a743cf87657df38150d1f.exe	93
PID 3176 wrote to memory of 2320	3176	c9ab1615da4eb661e347aed48b91b4b1490322bc6a3a743cf87657df38150d1f.exe	93
PID 2320 wrote to memory of 4992	2320	chargeable.exe	96
PID 2320 wrote to memory of 4992	2320	chargeable.exe	96
PID 2320 wrote to memory of 4992	2320	chargeable.exe	96
PID 2320 wrote to memory of 4992	2320	chargeable.exe	96
PID 2320 wrote to memory of 4992	2320	chargeable.exe	96
PID 2320 wrote to memory of 4992	2320	chargeable.exe	96
PID 2320 wrote to memory of 4992	2320	chargeable.exe	96
PID 2320 wrote to memory of 4992	2320	chargeable.exe	96
PID 4992 wrote to memory of 452	4992	chargeable.exe	97
PID 4992 wrote to memory of 452	4992	chargeable.exe	97
PID 4992 wrote to memory of 452	4992	chargeable.exe	97

C:\Users\Admin\AppData\Local\Temp\c9ab1615da4eb661e347aed48b91b4b1490322bc6a3a743cf87657df38150d1f.exe
"C:\Users\Admin\AppData\Local\Temp\c9ab1615da4eb661e347aed48b91b4b1490322bc6a3a743cf87657df38150d1f.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:3176
- 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:2320
- - 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:4992
  - - 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:452

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

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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

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chargeable.exe

Path C:\Users\Admin\AppData\Roaming\confuse\chargeable.exe
Size 114KB
SHA256 5cb6c414bb0d33e0dd898d9878b3e41758b1bad8177f83ffc287fbc90b2b44cc
MD5 05117ace4ac64802794d2523edaede55
SHA1 be4821fd10478ea7468141b78327d091d0e38492
SHA512 b0f4d4c0b2fa762cfa262b5ab081e40fe6931a748650fa8148416fddde910cab4ae845baf03bfc38ebd6f0abee7e510c4da9562752b7f2946aebb8ba0fba3dc8
SSDEEP 1536:WWp5eznKUlIOp3YjVCguHEvQEbFqVC3woFRKpT4XEQhuxzuMDw3:P5eznsjsguGDFqGZ2rDw3
MD5 SHA1 SHA512 SSDEEP

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memory/2320-19-0x0000000074FB0000-0x0000000075561000-memory.dmp

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memory/2320-18-0x0000000074FB0000-0x0000000075561000-memory.dmp

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memory/2320-25-0x0000000074FB0000-0x0000000075561000-memory.dmp

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memory/3176-2-0x0000000074FB0000-0x0000000075561000-memory.dmp

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memory/3176-17-0x0000000074FB0000-0x0000000075561000-memory.dmp

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memory/3176-0-0x0000000074FB2000-0x0000000074FB3000-memory.dmp

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memory/3176-1-0x0000000074FB0000-0x0000000075561000-memory.dmp

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memory/4992-20-0x0000000000400000-0x000000000040C000-memory.dmp

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memory/4992-24-0x0000000074FB0000-0x0000000075561000-memory.dmp

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memory/4992-26-0x0000000074FB0000-0x0000000075561000-memory.dmp

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memory/4992-27-0x0000000074FB0000-0x0000000075561000-memory.dmp

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memory/4992-28-0x0000000074FB0000-0x0000000075561000-memory.dmp

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Analysis

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General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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