njrat | 827a1d214bf0a27396eb6240034373e2cf7be6a82ff215bb9408c8c9e407c33b

Analysis

max time kernel
147s
max time network
146s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
17/08/2024, 01:00

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General

Target
73304b5c73a1c90b192c8748348509c213890807d3ca34b08c8fb84652b0cbd3.exe
Size 110KB
Sample240817-bcy7vsxgrc
SHA256 73304b5c73a1c90b192c8748348509c213890807d3ca34b08c8fb84652b0cbd3
MD5 0dcc21bdebe05957ca2922be486abe22
SHA1 8bcbd8a839a58e0050c17221e6a1cc775f07586b
SHA512 0752ba22340fd3383132243580cb28a147e67b42bb920af8c0fde491d550556fdfa296e70d94f2ce9798faddd0dad4664e2c2edda8f6604b9ba9e63e8f875e0f
SSDEEP 1536:orp5eznKUlIOp3YjVCguHEvQEbFqVC3woFRKpT4xtKegoxmOBh737:w5eznsjsguGDFqGx8egoxmO3r7
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

njrat neuf discovery evasion persistence privilege_escalation 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
4312	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-1-5-21-355097885-2402257403-2971294179-1000\Control Panel\International\Geo\Nation	73304b5c73a1c90b192c8748348509c213890807d3ca34b08c8fb84652b0cbd3.exe

Executes dropped EXE 3 IoCs

pid	Process
2976	chargeable.exe
4080	chargeable.exe
744	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-1-5-21-355097885-2402257403-2971294179-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\confuse = "C:\\Users\\Admin\\AppData\\Roaming\\confuse\\chargeable.exe"	73304b5c73a1c90b192c8748348509c213890807d3ca34b08c8fb84652b0cbd3.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-355097885-2402257403-2971294179-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\SysMain = "C:\\Users\\Admin\\AppData\\Local\\Temp\\73304b5c73a1c90b192c8748348509c213890807d3ca34b08c8fb84652b0cbd3.exe"	73304b5c73a1c90b192c8748348509c213890807d3ca34b08c8fb84652b0cbd3.exe

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 2976 set thread context of 4080	2976	chargeable.exe	99
PID 2976 set thread context of 744	2976	chargeable.exe	98

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

Program crash 1 IoCs

pid	pid_target	Process	procid_target
4044	744	WerFault.exe	98

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	73304b5c73a1c90b192c8748348509c213890807d3ca34b08c8fb84652b0cbd3.exe
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

Suspicious use of AdjustPrivilegeToken 33 IoCs

description	pid	Process
Token: SeDebugPrivilege	4080	chargeable.exe
Token: 33	4080	chargeable.exe
Token: SeIncBasePriorityPrivilege	4080	chargeable.exe
Token: 33	4080	chargeable.exe
Token: SeIncBasePriorityPrivilege	4080	chargeable.exe
Token: 33	4080	chargeable.exe
Token: SeIncBasePriorityPrivilege	4080	chargeable.exe
Token: 33	4080	chargeable.exe
Token: SeIncBasePriorityPrivilege	4080	chargeable.exe
Token: 33	4080	chargeable.exe
Token: SeIncBasePriorityPrivilege	4080	chargeable.exe
Token: 33	4080	chargeable.exe
Token: SeIncBasePriorityPrivilege	4080	chargeable.exe
Token: 33	4080	chargeable.exe
Token: SeIncBasePriorityPrivilege	4080	chargeable.exe
Token: 33	4080	chargeable.exe
Token: SeIncBasePriorityPrivilege	4080	chargeable.exe
Token: 33	4080	chargeable.exe
Token: SeIncBasePriorityPrivilege	4080	chargeable.exe
Token: 33	4080	chargeable.exe
Token: SeIncBasePriorityPrivilege	4080	chargeable.exe
Token: 33	4080	chargeable.exe
Token: SeIncBasePriorityPrivilege	4080	chargeable.exe
Token: 33	4080	chargeable.exe
Token: SeIncBasePriorityPrivilege	4080	chargeable.exe
Token: 33	4080	chargeable.exe
Token: SeIncBasePriorityPrivilege	4080	chargeable.exe
Token: 33	4080	chargeable.exe
Token: SeIncBasePriorityPrivilege	4080	chargeable.exe
Token: 33	4080	chargeable.exe
Token: SeIncBasePriorityPrivilege	4080	chargeable.exe
Token: 33	4080	chargeable.exe
Token: SeIncBasePriorityPrivilege	4080	chargeable.exe

Suspicious use of WriteProcessMemory 22 IoCs

description	pid	Process	procid_target
PID 1400 wrote to memory of 2976	1400	73304b5c73a1c90b192c8748348509c213890807d3ca34b08c8fb84652b0cbd3.exe	95
PID 1400 wrote to memory of 2976	1400	73304b5c73a1c90b192c8748348509c213890807d3ca34b08c8fb84652b0cbd3.exe	95
PID 1400 wrote to memory of 2976	1400	73304b5c73a1c90b192c8748348509c213890807d3ca34b08c8fb84652b0cbd3.exe	95
PID 2976 wrote to memory of 744	2976	chargeable.exe	98
PID 2976 wrote to memory of 744	2976	chargeable.exe	98
PID 2976 wrote to memory of 744	2976	chargeable.exe	98
PID 2976 wrote to memory of 4080	2976	chargeable.exe	99
PID 2976 wrote to memory of 4080	2976	chargeable.exe	99
PID 2976 wrote to memory of 4080	2976	chargeable.exe	99
PID 2976 wrote to memory of 4080	2976	chargeable.exe	99
PID 2976 wrote to memory of 4080	2976	chargeable.exe	99
PID 2976 wrote to memory of 4080	2976	chargeable.exe	99
PID 2976 wrote to memory of 4080	2976	chargeable.exe	99
PID 2976 wrote to memory of 4080	2976	chargeable.exe	99
PID 2976 wrote to memory of 744	2976	chargeable.exe	98
PID 2976 wrote to memory of 744	2976	chargeable.exe	98
PID 2976 wrote to memory of 744	2976	chargeable.exe	98
PID 2976 wrote to memory of 744	2976	chargeable.exe	98
PID 2976 wrote to memory of 744	2976	chargeable.exe	98
PID 4080 wrote to memory of 4312	4080	chargeable.exe	103
PID 4080 wrote to memory of 4312	4080	chargeable.exe	103
PID 4080 wrote to memory of 4312	4080	chargeable.exe	103

C:\Users\Admin\AppData\Local\Temp\73304b5c73a1c90b192c8748348509c213890807d3ca34b08c8fb84652b0cbd3.exe
"C:\Users\Admin\AppData\Local\Temp\73304b5c73a1c90b192c8748348509c213890807d3ca34b08c8fb84652b0cbd3.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1400
- 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:2976
- - C:\Users\Admin\AppData\Roaming\confuse\chargeable.exe
    C:\Users\Admin\AppData\Roaming\confuse\chargeable.exe
    3⤵
    - Executes dropped EXE
    PID:744
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 744 -s 80
      4⤵
      Program crash
      PID:4044
- - 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 AdjustPrivilegeToken
    - Suspicious use of WriteProcessMemory
    PID:4080
  - - 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:4312

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 744 -ip 744
1⤵
PID:3112

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

Event Triggered Execution

T1546

Netsh Helper DLL

T1546.007

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

Event Triggered Execution

T1546

Netsh Helper DLL

T1546.007

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

System Location Discovery

T1614

System Language Discovery

T1614.001

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 110KB
SHA256 758ea3ec52b00e4c83c6abc25100eb12608bc7594f67d4f531137ed159983c49
MD5 22c9ebd90b6842cc172bfcbb1df633bd
SHA1 cd6301c972630f1ecdde2d0c011a86e41d8ea8c5
SHA512 9ecb72092f5b6d753f7b3f9fbcde48c30abe14dc4ee054acb6b20a1d33b8bb621e466499edee2941cc7b5faca79a99e4ea417d43a2cc25709ed04f2aefb6f9f2
SSDEEP 1536:orp5eznKUlIOp3YjVCguHEvQEbFqVC3woFRKpT4xtKegoxmOBh73X:w5eznsjsguGDFqGx8egoxmO3rX
MD5 SHA1 SHA512 SSDEEP

Submit Download

memory/1400-19-0x0000000074930000-0x0000000074EE1000-memory.dmp

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memory/1400-6-0x0000000074932000-0x0000000074933000-memory.dmp

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memory/1400-7-0x0000000074930000-0x0000000074EE1000-memory.dmp

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memory/1400-2-0x0000000074930000-0x0000000074EE1000-memory.dmp

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memory/1400-20-0x0000000074930000-0x0000000074EE1000-memory.dmp

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memory/1400-1-0x0000000074930000-0x0000000074EE1000-memory.dmp

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memory/1400-0-0x0000000074932000-0x0000000074933000-memory.dmp

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memory/2976-22-0x0000000074930000-0x0000000074EE1000-memory.dmp

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memory/2976-21-0x0000000074930000-0x0000000074EE1000-memory.dmp

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memory/2976-30-0x0000000074930000-0x0000000074EE1000-memory.dmp

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memory/4080-23-0x0000000000400000-0x000000000040C000-memory.dmp

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memory/4080-31-0x0000000074930000-0x0000000074EE1000-memory.dmp

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memory/4080-29-0x0000000074930000-0x0000000074EE1000-memory.dmp

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memory/4080-32-0x0000000074930000-0x0000000074EE1000-memory.dmp

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memory/4080-33-0x0000000074930000-0x0000000074EE1000-memory.dmp

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Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads