njrat | dd9ec1c6a4be9bd962e1b1bd843d5750ef399c7c7cce60b368f627f5384e7a7c

Analysis

max time kernel
146s
max time network
138s
platform
windows10-2004_x64
resource
win10v2004-20240508-en
resource tags

arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
submitted
02/07/2024, 22:46

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General

Target
531b4ef4efcfd5f8c8f85094d8bf6840.exe
Size 117KB
Sample240702-2pyd7stena
SHA256 dd9ec1c6a4be9bd962e1b1bd843d5750ef399c7c7cce60b368f627f5384e7a7c
MD5 531b4ef4efcfd5f8c8f85094d8bf6840
SHA1 6719fd690baebc47313846eedd1eccaf197deb41
SHA512 b3017d2cf0a7bf78bb3fa385017c37e4efe0a1f5db7a28015ee4b825afab7bc356bbeb23639a9d2ee5a76b5fca3ef42f98522998ce0827f20ca12a1955dc7340
SSDEEP 1536:WWp5eznKUlIOp3YjVCguHEvQEbFqVC3woFRKpT4XEQhuxzuMDLZ2:P5eznsjsguGDFqGZ2rDLZ2
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

njrat neuf 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
2448	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-1-5-21-4124900551-4068476067-3491212533-1000\Control Panel\International\Geo\Nation	531b4ef4efcfd5f8c8f85094d8bf6840.exe

Executes dropped EXE 2 IoCs

pid	Process
996	chargeable.exe
3764	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-1-5-21-4124900551-4068476067-3491212533-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\confuse = "C:\\Users\\Admin\\AppData\\Roaming\\confuse\\chargeable.exe"	531b4ef4efcfd5f8c8f85094d8bf6840.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4124900551-4068476067-3491212533-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\SysMain = "C:\\Users\\Admin\\AppData\\Local\\Temp\\531b4ef4efcfd5f8c8f85094d8bf6840.exe"	531b4ef4efcfd5f8c8f85094d8bf6840.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 996 set thread context of 3764	996	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 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

Suspicious use of AdjustPrivilegeToken 33 IoCs

description	pid	Process
Token: SeDebugPrivilege	3764	chargeable.exe
Token: 33	3764	chargeable.exe
Token: SeIncBasePriorityPrivilege	3764	chargeable.exe
Token: 33	3764	chargeable.exe
Token: SeIncBasePriorityPrivilege	3764	chargeable.exe
Token: 33	3764	chargeable.exe
Token: SeIncBasePriorityPrivilege	3764	chargeable.exe
Token: 33	3764	chargeable.exe
Token: SeIncBasePriorityPrivilege	3764	chargeable.exe
Token: 33	3764	chargeable.exe
Token: SeIncBasePriorityPrivilege	3764	chargeable.exe
Token: 33	3764	chargeable.exe
Token: SeIncBasePriorityPrivilege	3764	chargeable.exe
Token: 33	3764	chargeable.exe
Token: SeIncBasePriorityPrivilege	3764	chargeable.exe
Token: 33	3764	chargeable.exe
Token: SeIncBasePriorityPrivilege	3764	chargeable.exe
Token: 33	3764	chargeable.exe
Token: SeIncBasePriorityPrivilege	3764	chargeable.exe
Token: 33	3764	chargeable.exe
Token: SeIncBasePriorityPrivilege	3764	chargeable.exe
Token: 33	3764	chargeable.exe
Token: SeIncBasePriorityPrivilege	3764	chargeable.exe
Token: 33	3764	chargeable.exe
Token: SeIncBasePriorityPrivilege	3764	chargeable.exe
Token: 33	3764	chargeable.exe
Token: SeIncBasePriorityPrivilege	3764	chargeable.exe
Token: 33	3764	chargeable.exe
Token: SeIncBasePriorityPrivilege	3764	chargeable.exe
Token: 33	3764	chargeable.exe
Token: SeIncBasePriorityPrivilege	3764	chargeable.exe
Token: 33	3764	chargeable.exe
Token: SeIncBasePriorityPrivilege	3764	chargeable.exe

Suspicious use of WriteProcessMemory 14 IoCs

description	pid	Process	procid_target
PID 3684 wrote to memory of 996	3684	531b4ef4efcfd5f8c8f85094d8bf6840.exe	85
PID 3684 wrote to memory of 996	3684	531b4ef4efcfd5f8c8f85094d8bf6840.exe	85
PID 3684 wrote to memory of 996	3684	531b4ef4efcfd5f8c8f85094d8bf6840.exe	85
PID 996 wrote to memory of 3764	996	chargeable.exe	87
PID 996 wrote to memory of 3764	996	chargeable.exe	87
PID 996 wrote to memory of 3764	996	chargeable.exe	87
PID 996 wrote to memory of 3764	996	chargeable.exe	87
PID 996 wrote to memory of 3764	996	chargeable.exe	87
PID 996 wrote to memory of 3764	996	chargeable.exe	87
PID 996 wrote to memory of 3764	996	chargeable.exe	87
PID 996 wrote to memory of 3764	996	chargeable.exe	87
PID 3764 wrote to memory of 2448	3764	chargeable.exe	90
PID 3764 wrote to memory of 2448	3764	chargeable.exe	90
PID 3764 wrote to memory of 2448	3764	chargeable.exe	90

C:\Users\Admin\AppData\Local\Temp\531b4ef4efcfd5f8c8f85094d8bf6840.exe
"C:\Users\Admin\AppData\Local\Temp\531b4ef4efcfd5f8c8f85094d8bf6840.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:3684
- 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:996
- - 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:3764
  - - 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
      PID:2448

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

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 117KB
SHA256 c94a9554ea38c836df066bd553e1b1679f5de8898e3ee7563e4ebecc47707f92
MD5 92b56345693f6c5c05a001f64c1c7332
SHA1 db98a1bed4b158cb5c15e05295ecdb8e1c174dea
SHA512 d789324d750a5f67048a172b24bbb00257e15ebf9b2e4bf7111dd56af278c7853cdb8d1e85fdcf2f6d8258d880477b1fd769953b2d1815ae08f548e7b7102416
SSDEEP 1536:WWp5eznKUlIOp3YjVCguHEvQEbFqVC3woFRKpT4XEQhuxzuMDLZM:P5eznsjsguGDFqGZ2rDLZM
MD5 SHA1 SHA512 SSDEEP

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memory/996-26-0x0000000074C00000-0x00000000751B1000-memory.dmp

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memory/996-18-0x0000000074C00000-0x00000000751B1000-memory.dmp

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memory/996-19-0x0000000074C00000-0x00000000751B1000-memory.dmp

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memory/996-20-0x0000000074C00000-0x00000000751B1000-memory.dmp

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memory/3684-0-0x0000000074C02000-0x0000000074C03000-memory.dmp

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memory/3684-17-0x0000000074C00000-0x00000000751B1000-memory.dmp

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memory/3684-2-0x0000000074C00000-0x00000000751B1000-memory.dmp

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memory/3684-1-0x0000000074C00000-0x00000000751B1000-memory.dmp

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memory/3764-21-0x0000000000400000-0x000000000040C000-memory.dmp

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memory/3764-28-0x0000000074C00000-0x00000000751B1000-memory.dmp

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memory/3764-27-0x0000000074C00000-0x00000000751B1000-memory.dmp

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memory/3764-25-0x0000000074C00000-0x00000000751B1000-memory.dmp

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memory/3764-29-0x0000000074C00000-0x00000000751B1000-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