njrat | 782c435f307bc501180345266abad2dd01a8c555890e7df72537e7c1bb1130ac

Analysis

max time kernel
114s
max time network
120s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
03/08/2024, 19:05

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General

Target
d002658654c975947f9f605cb13eec30N.exe
Size 118KB
Sample240803-xrrbfssdlp
SHA256 782c435f307bc501180345266abad2dd01a8c555890e7df72537e7c1bb1130ac
MD5 d002658654c975947f9f605cb13eec30
SHA1 6f4a7c628a4899892276399308184e2db5d71ad5
SHA512 e22b30e2aceb1191abee5752d7221d11e5e9218e8474ac9156ebec86e8a845968e366d9396ca474a51adbad0814af9a097d74618bdc6f0f3fcda615989f1186d
SSDEEP 1536:WWp5eznKUlIOp3YjVCguHEvQEbFqVC3woFRKpT4XEQhuxzuMDLfQ:P5eznsjsguGDFqGZ2rDLfQ
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
4816	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-1-5-21-2412658365-3084825385-3340777666-1000\Control Panel\International\Geo\Nation	d002658654c975947f9f605cb13eec30N.exe

Executes dropped EXE 2 IoCs

pid	Process
1424	chargeable.exe
4272	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-1-5-21-2412658365-3084825385-3340777666-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\confuse = "C:\\Users\\Admin\\AppData\\Roaming\\confuse\\chargeable.exe"	d002658654c975947f9f605cb13eec30N.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2412658365-3084825385-3340777666-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\SysMain = "C:\\Users\\Admin\\AppData\\Local\\Temp\\d002658654c975947f9f605cb13eec30N.exe"	d002658654c975947f9f605cb13eec30N.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1424 set thread context of 4272	1424	chargeable.exe	87

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

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	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	d002658654c975947f9f605cb13eec30N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	chargeable.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	chargeable.exe

Suspicious use of AdjustPrivilegeToken 25 IoCs

description	pid	Process
Token: SeDebugPrivilege	4272	chargeable.exe
Token: 33	4272	chargeable.exe
Token: SeIncBasePriorityPrivilege	4272	chargeable.exe
Token: 33	4272	chargeable.exe
Token: SeIncBasePriorityPrivilege	4272	chargeable.exe
Token: 33	4272	chargeable.exe
Token: SeIncBasePriorityPrivilege	4272	chargeable.exe
Token: 33	4272	chargeable.exe
Token: SeIncBasePriorityPrivilege	4272	chargeable.exe
Token: 33	4272	chargeable.exe
Token: SeIncBasePriorityPrivilege	4272	chargeable.exe
Token: 33	4272	chargeable.exe
Token: SeIncBasePriorityPrivilege	4272	chargeable.exe
Token: 33	4272	chargeable.exe
Token: SeIncBasePriorityPrivilege	4272	chargeable.exe
Token: 33	4272	chargeable.exe
Token: SeIncBasePriorityPrivilege	4272	chargeable.exe
Token: 33	4272	chargeable.exe
Token: SeIncBasePriorityPrivilege	4272	chargeable.exe
Token: 33	4272	chargeable.exe
Token: SeIncBasePriorityPrivilege	4272	chargeable.exe
Token: 33	4272	chargeable.exe
Token: SeIncBasePriorityPrivilege	4272	chargeable.exe
Token: 33	4272	chargeable.exe
Token: SeIncBasePriorityPrivilege	4272	chargeable.exe

Suspicious use of WriteProcessMemory 14 IoCs

description	pid	Process	procid_target
PID 1788 wrote to memory of 1424	1788	d002658654c975947f9f605cb13eec30N.exe	86
PID 1788 wrote to memory of 1424	1788	d002658654c975947f9f605cb13eec30N.exe	86
PID 1788 wrote to memory of 1424	1788	d002658654c975947f9f605cb13eec30N.exe	86
PID 1424 wrote to memory of 4272	1424	chargeable.exe	87
PID 1424 wrote to memory of 4272	1424	chargeable.exe	87
PID 1424 wrote to memory of 4272	1424	chargeable.exe	87
PID 1424 wrote to memory of 4272	1424	chargeable.exe	87
PID 1424 wrote to memory of 4272	1424	chargeable.exe	87
PID 1424 wrote to memory of 4272	1424	chargeable.exe	87
PID 1424 wrote to memory of 4272	1424	chargeable.exe	87
PID 1424 wrote to memory of 4272	1424	chargeable.exe	87
PID 4272 wrote to memory of 4816	4272	chargeable.exe	88
PID 4272 wrote to memory of 4816	4272	chargeable.exe	88
PID 4272 wrote to memory of 4816	4272	chargeable.exe	88

C:\Users\Admin\AppData\Local\Temp\d002658654c975947f9f605cb13eec30N.exe
"C:\Users\Admin\AppData\Local\Temp\d002658654c975947f9f605cb13eec30N.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1788
- 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:1424
- - 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:4272
  - - 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:4816

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 1a31ac3b478b3e66c4a9a758073f74a2b67953eadf57d324733afffc90c7f475
MD5 2efe58667c6c0a891d6a05bbfc4c3540
SHA1 b4e89ab9b0fdd687dbfcaaef02cda501fd5396c4
SHA512 353347941e56d423bb1387f75d5598aec18ab9f62c2335d14ce4493c179aa5b25f1caede977142efd35b72b9117bf127fa06672f796186309fb976907ec4a174
SSDEEP 1536:WWp5eznKUlIOp3YjVCguHEvQEbFqVC3woFRKpT4XEQhuxzuMDLfw:P5eznsjsguGDFqGZ2rDLfw
MD5 SHA1 SHA512 SSDEEP

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memory/1424-26-0x0000000075240000-0x00000000757F1000-memory.dmp

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memory/1424-18-0x0000000075240000-0x00000000757F1000-memory.dmp

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memory/1788-1-0x0000000075240000-0x00000000757F1000-memory.dmp

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memory/1788-2-0x0000000075240000-0x00000000757F1000-memory.dmp

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memory/1788-17-0x0000000075240000-0x00000000757F1000-memory.dmp

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memory/1788-0-0x0000000075242000-0x0000000075243000-memory.dmp

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memory/4272-19-0x0000000000400000-0x000000000040C000-memory.dmp

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memory/4272-24-0x0000000075240000-0x00000000757F1000-memory.dmp

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memory/4272-23-0x0000000075240000-0x00000000757F1000-memory.dmp

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memory/4272-25-0x0000000075240000-0x00000000757F1000-memory.dmp

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memory/4272-27-0x0000000075240000-0x00000000757F1000-memory.dmp

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memory/4272-28-0x0000000075240000-0x00000000757F1000-memory.dmp

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Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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