njrat | 6720579a21fb8905db30dd2b3272ee501e3e4a49807f0045667699508d6c3819

Analysis

max time kernel
147s
max time network
146s
platform
windows10-2004_x64
resource
win10v2004-20240709-en
resource tags

arch:x64arch:x86image:win10v2004-20240709-enlocale:en-usos:windows10-2004-x64system
submitted
23/07/2024, 22:28

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General

Target
6720579a21fb8905db30dd2b3272ee501e3e4a49807f0045667699508d6c3819.exe
Size 115KB
Sample240723-2d43lssdmk
SHA256 6720579a21fb8905db30dd2b3272ee501e3e4a49807f0045667699508d6c3819
MD5 076396d21097fdf0a10f524e01334555
SHA1 bd9d2a65f4fc4d5f3f78304f4e3b3ae36f4c5d73
SHA512 d6641e3144aef504da178939f95c053d7c72e6ad87e2f57d351749720e7c86a97581ca8e185d7d9134102341380397ddd7159fc8cf1931e6be3a1cea617dd316
SSDEEP 1536:WWp5eznKUlIOp3YjVCguHEvQEbFqVC3woFRKpT4XEQhuxzuMIr:P5eznsjsguGDFqGZ2rIr
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
3660	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-1-5-21-1176886754-713327781-2233697964-1000\Control Panel\International\Geo\Nation	6720579a21fb8905db30dd2b3272ee501e3e4a49807f0045667699508d6c3819.exe

Executes dropped EXE 3 IoCs

pid	Process
212	chargeable.exe
1816	chargeable.exe
3048	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-1-5-21-1176886754-713327781-2233697964-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\confuse = "C:\\Users\\Admin\\AppData\\Roaming\\confuse\\chargeable.exe"	6720579a21fb8905db30dd2b3272ee501e3e4a49807f0045667699508d6c3819.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1176886754-713327781-2233697964-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\SysMain = "C:\\Users\\Admin\\AppData\\Local\\Temp\\6720579a21fb8905db30dd2b3272ee501e3e4a49807f0045667699508d6c3819.exe"	6720579a21fb8905db30dd2b3272ee501e3e4a49807f0045667699508d6c3819.exe

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 212 set thread context of 1816	212	chargeable.exe	98
PID 212 set thread context of 3048	212	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 value enumerated	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key opened	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key queried	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
972	3048	WerFault.exe	97

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	6720579a21fb8905db30dd2b3272ee501e3e4a49807f0045667699508d6c3819.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	1816	chargeable.exe
Token: 33	1816	chargeable.exe
Token: SeIncBasePriorityPrivilege	1816	chargeable.exe
Token: 33	1816	chargeable.exe
Token: SeIncBasePriorityPrivilege	1816	chargeable.exe
Token: 33	1816	chargeable.exe
Token: SeIncBasePriorityPrivilege	1816	chargeable.exe
Token: 33	1816	chargeable.exe
Token: SeIncBasePriorityPrivilege	1816	chargeable.exe
Token: 33	1816	chargeable.exe
Token: SeIncBasePriorityPrivilege	1816	chargeable.exe
Token: 33	1816	chargeable.exe
Token: SeIncBasePriorityPrivilege	1816	chargeable.exe
Token: 33	1816	chargeable.exe
Token: SeIncBasePriorityPrivilege	1816	chargeable.exe
Token: 33	1816	chargeable.exe
Token: SeIncBasePriorityPrivilege	1816	chargeable.exe
Token: 33	1816	chargeable.exe
Token: SeIncBasePriorityPrivilege	1816	chargeable.exe
Token: 33	1816	chargeable.exe
Token: SeIncBasePriorityPrivilege	1816	chargeable.exe
Token: 33	1816	chargeable.exe
Token: SeIncBasePriorityPrivilege	1816	chargeable.exe
Token: 33	1816	chargeable.exe
Token: SeIncBasePriorityPrivilege	1816	chargeable.exe
Token: 33	1816	chargeable.exe
Token: SeIncBasePriorityPrivilege	1816	chargeable.exe
Token: 33	1816	chargeable.exe
Token: SeIncBasePriorityPrivilege	1816	chargeable.exe
Token: 33	1816	chargeable.exe
Token: SeIncBasePriorityPrivilege	1816	chargeable.exe
Token: 33	1816	chargeable.exe
Token: SeIncBasePriorityPrivilege	1816	chargeable.exe

Suspicious use of WriteProcessMemory 22 IoCs

description	pid	Process	procid_target
PID 612 wrote to memory of 212	612	6720579a21fb8905db30dd2b3272ee501e3e4a49807f0045667699508d6c3819.exe	94
PID 612 wrote to memory of 212	612	6720579a21fb8905db30dd2b3272ee501e3e4a49807f0045667699508d6c3819.exe	94
PID 612 wrote to memory of 212	612	6720579a21fb8905db30dd2b3272ee501e3e4a49807f0045667699508d6c3819.exe	94
PID 212 wrote to memory of 3048	212	chargeable.exe	97
PID 212 wrote to memory of 3048	212	chargeable.exe	97
PID 212 wrote to memory of 3048	212	chargeable.exe	97
PID 212 wrote to memory of 1816	212	chargeable.exe	98
PID 212 wrote to memory of 1816	212	chargeable.exe	98
PID 212 wrote to memory of 1816	212	chargeable.exe	98
PID 212 wrote to memory of 1816	212	chargeable.exe	98
PID 212 wrote to memory of 1816	212	chargeable.exe	98
PID 212 wrote to memory of 1816	212	chargeable.exe	98
PID 212 wrote to memory of 1816	212	chargeable.exe	98
PID 212 wrote to memory of 1816	212	chargeable.exe	98
PID 212 wrote to memory of 3048	212	chargeable.exe	97
PID 212 wrote to memory of 3048	212	chargeable.exe	97
PID 212 wrote to memory of 3048	212	chargeable.exe	97
PID 212 wrote to memory of 3048	212	chargeable.exe	97
PID 212 wrote to memory of 3048	212	chargeable.exe	97
PID 1816 wrote to memory of 3660	1816	chargeable.exe	102
PID 1816 wrote to memory of 3660	1816	chargeable.exe	102
PID 1816 wrote to memory of 3660	1816	chargeable.exe	102

C:\Users\Admin\AppData\Local\Temp\6720579a21fb8905db30dd2b3272ee501e3e4a49807f0045667699508d6c3819.exe
"C:\Users\Admin\AppData\Local\Temp\6720579a21fb8905db30dd2b3272ee501e3e4a49807f0045667699508d6c3819.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:612
- 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:212
- - C:\Users\Admin\AppData\Roaming\confuse\chargeable.exe
    C:\Users\Admin\AppData\Roaming\confuse\chargeable.exe
    3⤵
    - Executes dropped EXE
    PID:3048
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3048 -s 84
      4⤵
      Program crash
      PID:972
- - 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:1816
  - - 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:3660

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 3048 -ip 3048
1⤵
PID:3444

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 115KB
SHA256 68863e3d17a20ee0475979d29424091cfa5baf6a98926fb5186d771f4505cc84
MD5 9811afa16879f78b76a79cdf1cb5d65d
SHA1 0a9bbeff600ee85ca11b20a0708fcd31919c6b85
SHA512 4d48f42b33f10021f730d5ed23e33215282eb36106ae6101336e6dd100b1d48761fc691e74fea4b38bf5f8a84c95eb76f72421cacb6585609574818ae3d09c03
SSDEEP 1536:WWp5eznKUlIOp3YjVCguHEvQEbFqVC3woFRKpT4XEQhuxzuMIs:P5eznsjsguGDFqGZ2rIs
MD5 SHA1 SHA512 SSDEEP

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memory/212-19-0x0000000074AE0000-0x0000000075091000-memory.dmp

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memory/212-18-0x0000000074AE0000-0x0000000075091000-memory.dmp

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memory/212-27-0x0000000074AE0000-0x0000000075091000-memory.dmp

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memory/612-2-0x0000000074AE0000-0x0000000075091000-memory.dmp

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memory/612-17-0x0000000074AE0000-0x0000000075091000-memory.dmp

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memory/612-0-0x0000000074AE2000-0x0000000074AE3000-memory.dmp

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memory/612-1-0x0000000074AE0000-0x0000000075091000-memory.dmp

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memory/1816-20-0x0000000000400000-0x000000000040C000-memory.dmp

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memory/1816-28-0x0000000074AE0000-0x0000000075091000-memory.dmp

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memory/1816-26-0x0000000074AE0000-0x0000000075091000-memory.dmp

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memory/1816-29-0x0000000074AE0000-0x0000000075091000-memory.dmp

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Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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