njrat | 3d90e73d4a2d7b46de5897b1db7fdbca33b49e713bd215743f76d582b547a230

Analysis

max time kernel
114s
max time network
118s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
16/08/2024, 08:20

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General

Target
e92558ae38e7e4265d09e8c75eea1fe0N.exe
Size 118KB
Sample240816-j8glpavakb
SHA256 3d90e73d4a2d7b46de5897b1db7fdbca33b49e713bd215743f76d582b547a230
MD5 e92558ae38e7e4265d09e8c75eea1fe0
SHA1 5de2f64c6126771c1b1b1c7e2441e709bd008a97
SHA512 2cd8e1cc4eee377b92cb0d8ab883a03355929fad404863c6e77276d0be4c8bdf232a4f7dc866e3c36ae38faca1f25ed141ddeb97c1ca08d5367bb71e31cd5bab
SSDEEP 1536:WWp5eznKUlIOp3YjVCguHEvQEbFqVC3woFRKpT4XEQhuxzuMDL14FgE:P5eznsjsguGDFqGZ2rDL14FgE
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
5000	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	e92558ae38e7e4265d09e8c75eea1fe0N.exe

Executes dropped EXE 2 IoCs

pid	Process
1452	chargeable.exe
3160	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"	e92558ae38e7e4265d09e8c75eea1fe0N.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\\e92558ae38e7e4265d09e8c75eea1fe0N.exe"	e92558ae38e7e4265d09e8c75eea1fe0N.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1452 set thread context of 3160	1452	chargeable.exe	94

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	e92558ae38e7e4265d09e8c75eea1fe0N.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 25 IoCs

description	pid	Process
Token: SeDebugPrivilege	3160	chargeable.exe
Token: 33	3160	chargeable.exe
Token: SeIncBasePriorityPrivilege	3160	chargeable.exe
Token: 33	3160	chargeable.exe
Token: SeIncBasePriorityPrivilege	3160	chargeable.exe
Token: 33	3160	chargeable.exe
Token: SeIncBasePriorityPrivilege	3160	chargeable.exe
Token: 33	3160	chargeable.exe
Token: SeIncBasePriorityPrivilege	3160	chargeable.exe
Token: 33	3160	chargeable.exe
Token: SeIncBasePriorityPrivilege	3160	chargeable.exe
Token: 33	3160	chargeable.exe
Token: SeIncBasePriorityPrivilege	3160	chargeable.exe
Token: 33	3160	chargeable.exe
Token: SeIncBasePriorityPrivilege	3160	chargeable.exe
Token: 33	3160	chargeable.exe
Token: SeIncBasePriorityPrivilege	3160	chargeable.exe
Token: 33	3160	chargeable.exe
Token: SeIncBasePriorityPrivilege	3160	chargeable.exe
Token: 33	3160	chargeable.exe
Token: SeIncBasePriorityPrivilege	3160	chargeable.exe
Token: 33	3160	chargeable.exe
Token: SeIncBasePriorityPrivilege	3160	chargeable.exe
Token: 33	3160	chargeable.exe
Token: SeIncBasePriorityPrivilege	3160	chargeable.exe

Suspicious use of WriteProcessMemory 14 IoCs

description	pid	Process	procid_target
PID 3868 wrote to memory of 1452	3868	e92558ae38e7e4265d09e8c75eea1fe0N.exe	92
PID 3868 wrote to memory of 1452	3868	e92558ae38e7e4265d09e8c75eea1fe0N.exe	92
PID 3868 wrote to memory of 1452	3868	e92558ae38e7e4265d09e8c75eea1fe0N.exe	92
PID 1452 wrote to memory of 3160	1452	chargeable.exe	94
PID 1452 wrote to memory of 3160	1452	chargeable.exe	94
PID 1452 wrote to memory of 3160	1452	chargeable.exe	94
PID 1452 wrote to memory of 3160	1452	chargeable.exe	94
PID 1452 wrote to memory of 3160	1452	chargeable.exe	94
PID 1452 wrote to memory of 3160	1452	chargeable.exe	94
PID 1452 wrote to memory of 3160	1452	chargeable.exe	94
PID 1452 wrote to memory of 3160	1452	chargeable.exe	94
PID 3160 wrote to memory of 5000	3160	chargeable.exe	96
PID 3160 wrote to memory of 5000	3160	chargeable.exe	96
PID 3160 wrote to memory of 5000	3160	chargeable.exe	96

C:\Users\Admin\AppData\Local\Temp\e92558ae38e7e4265d09e8c75eea1fe0N.exe
"C:\Users\Admin\AppData\Local\Temp\e92558ae38e7e4265d09e8c75eea1fe0N.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3868
- 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:1452
- - 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:3160
  - - 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:5000

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 118KB
SHA256 8bd4692aa627bd894a91a72874876e5990cab66f03af0f3a6782bad872d77c27
MD5 c28ab1e9ed5e50db5ec7afc3a94826c6
SHA1 7d339ec3a37857777289e343c1dc91d02133bb14
SHA512 db444820a00138ed506b2d17f596b69e83125a5682df01ece4522947fc4787f3786fbb956e217ded464cb95cf882b1c9a6900b92f76c6b733d0d76a437937a01
SSDEEP 1536:WWp5eznKUlIOp3YjVCguHEvQEbFqVC3woFRKpT4XEQhuxzuMDL14FgD:P5eznsjsguGDFqGZ2rDL14FgD
MD5 SHA1 SHA512 SSDEEP

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memory/1452-28-0x0000000074E40000-0x00000000753F1000-memory.dmp

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memory/1452-22-0x0000000074E40000-0x00000000753F1000-memory.dmp

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memory/1452-21-0x0000000074E40000-0x00000000753F1000-memory.dmp

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memory/3160-30-0x0000000074E40000-0x00000000753F1000-memory.dmp

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memory/3160-27-0x0000000074E40000-0x00000000753F1000-memory.dmp

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memory/3160-29-0x0000000074E40000-0x00000000753F1000-memory.dmp

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memory/3160-23-0x0000000000400000-0x000000000040C000-memory.dmp

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memory/3868-19-0x0000000074E40000-0x00000000753F1000-memory.dmp

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memory/3868-20-0x0000000074E40000-0x00000000753F1000-memory.dmp

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memory/3868-1-0x0000000074E40000-0x00000000753F1000-memory.dmp

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memory/3868-0-0x0000000074E42000-0x0000000074E43000-memory.dmp

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memory/3868-6-0x0000000074E42000-0x0000000074E43000-memory.dmp

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memory/3868-2-0x0000000074E40000-0x00000000753F1000-memory.dmp

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memory/3868-7-0x0000000074E40000-0x00000000753F1000-memory.dmp

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Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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