njrat | 41126df4807fb0546c92d3b88279cef6681c963dbd62141079d3f9e788088f63

Analysis

max time kernel
147s
max time network
154s
platform
windows10-2004_x64
resource
win10v2004-20240611-en
resource tags

arch:x64arch:x86image:win10v2004-20240611-enlocale:en-usos:windows10-2004-x64system
submitted
27/06/2024, 01:14

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General

Target
41126df4807fb0546c92d3b88279cef6681c963dbd62141079d3f9e788088f63.exe
Size 116KB
Sample240627-bl3xeaxdnp
SHA256 41126df4807fb0546c92d3b88279cef6681c963dbd62141079d3f9e788088f63
MD5 1830989fbee9e2dff31ee863e52242c2
SHA1 0743303ca1c03b4736b410084e00ee0ad85fa099
SHA512 42e82a103b52744c8bbf2e30edfa9616bf35c0d024f020b7b1339f8f59e8b69a7fb81fcf8b38cf15702eb8aa5c98066ef848a3cd48cebfa76e76b963ebbdf16d
SSDEEP 1536:WWp5eznKUlIOp3YjVCguHEvQEbFqVC3woFRKpT4XEQhuxzuMDLZ3:P5eznsjsguGDFqGZ2rDLd
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
3284	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-1-5-21-2447855248-390457009-3660902674-1000\Control Panel\International\Geo\Nation	41126df4807fb0546c92d3b88279cef6681c963dbd62141079d3f9e788088f63.exe

Executes dropped EXE 2 IoCs

pid	Process
4780	chargeable.exe
3792	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-1-5-21-2447855248-390457009-3660902674-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\confuse = "C:\\Users\\Admin\\AppData\\Roaming\\confuse\\chargeable.exe"	41126df4807fb0546c92d3b88279cef6681c963dbd62141079d3f9e788088f63.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2447855248-390457009-3660902674-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\SysMain = "C:\\Users\\Admin\\AppData\\Local\\Temp\\41126df4807fb0546c92d3b88279cef6681c963dbd62141079d3f9e788088f63.exe"	41126df4807fb0546c92d3b88279cef6681c963dbd62141079d3f9e788088f63.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4780 set thread context of 3792	4780	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 queried	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key value enumerated	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key opened	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe

Suspicious use of AdjustPrivilegeToken 33 IoCs

description	pid	Process
Token: SeDebugPrivilege	3792	chargeable.exe
Token: 33	3792	chargeable.exe
Token: SeIncBasePriorityPrivilege	3792	chargeable.exe
Token: 33	3792	chargeable.exe
Token: SeIncBasePriorityPrivilege	3792	chargeable.exe
Token: 33	3792	chargeable.exe
Token: SeIncBasePriorityPrivilege	3792	chargeable.exe
Token: 33	3792	chargeable.exe
Token: SeIncBasePriorityPrivilege	3792	chargeable.exe
Token: 33	3792	chargeable.exe
Token: SeIncBasePriorityPrivilege	3792	chargeable.exe
Token: 33	3792	chargeable.exe
Token: SeIncBasePriorityPrivilege	3792	chargeable.exe
Token: 33	3792	chargeable.exe
Token: SeIncBasePriorityPrivilege	3792	chargeable.exe
Token: 33	3792	chargeable.exe
Token: SeIncBasePriorityPrivilege	3792	chargeable.exe
Token: 33	3792	chargeable.exe
Token: SeIncBasePriorityPrivilege	3792	chargeable.exe
Token: 33	3792	chargeable.exe
Token: SeIncBasePriorityPrivilege	3792	chargeable.exe
Token: 33	3792	chargeable.exe
Token: SeIncBasePriorityPrivilege	3792	chargeable.exe
Token: 33	3792	chargeable.exe
Token: SeIncBasePriorityPrivilege	3792	chargeable.exe
Token: 33	3792	chargeable.exe
Token: SeIncBasePriorityPrivilege	3792	chargeable.exe
Token: 33	3792	chargeable.exe
Token: SeIncBasePriorityPrivilege	3792	chargeable.exe
Token: 33	3792	chargeable.exe
Token: SeIncBasePriorityPrivilege	3792	chargeable.exe
Token: 33	3792	chargeable.exe
Token: SeIncBasePriorityPrivilege	3792	chargeable.exe

Suspicious use of WriteProcessMemory 14 IoCs

description	pid	Process	procid_target
PID 4624 wrote to memory of 4780	4624	41126df4807fb0546c92d3b88279cef6681c963dbd62141079d3f9e788088f63.exe	91
PID 4624 wrote to memory of 4780	4624	41126df4807fb0546c92d3b88279cef6681c963dbd62141079d3f9e788088f63.exe	91
PID 4624 wrote to memory of 4780	4624	41126df4807fb0546c92d3b88279cef6681c963dbd62141079d3f9e788088f63.exe	91
PID 4780 wrote to memory of 3792	4780	chargeable.exe	94
PID 4780 wrote to memory of 3792	4780	chargeable.exe	94
PID 4780 wrote to memory of 3792	4780	chargeable.exe	94
PID 4780 wrote to memory of 3792	4780	chargeable.exe	94
PID 4780 wrote to memory of 3792	4780	chargeable.exe	94
PID 4780 wrote to memory of 3792	4780	chargeable.exe	94
PID 4780 wrote to memory of 3792	4780	chargeable.exe	94
PID 4780 wrote to memory of 3792	4780	chargeable.exe	94
PID 3792 wrote to memory of 3284	3792	chargeable.exe	95
PID 3792 wrote to memory of 3284	3792	chargeable.exe	95
PID 3792 wrote to memory of 3284	3792	chargeable.exe	95

C:\Users\Admin\AppData\Local\Temp\41126df4807fb0546c92d3b88279cef6681c963dbd62141079d3f9e788088f63.exe
"C:\Users\Admin\AppData\Local\Temp\41126df4807fb0546c92d3b88279cef6681c963dbd62141079d3f9e788088f63.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:4624
- 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:4780
- - 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:3792
  - - 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:3284

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 116KB
SHA256 a0e691fe06a49f40cc1ee1c915d638a386caddb83cde0fc40b42d923e1a5f042
MD5 974ff8906ae05d5899e8840c89857948
SHA1 6f8ff807725bdae9c0d08ab1a1d75482e46f8d2c
SHA512 30a3bf52fcc7087ce7294a850a23548fec194ea1dc66493680b83f1fe625f98c275bbf28c15a7f1d1863b67d82efb46ee042ab71a30f44b1bf5b6edaa1829d27
SSDEEP 1536:WWp5eznKUlIOp3YjVCguHEvQEbFqVC3woFRKpT4XEQhuxzuMDLZl:P5eznsjsguGDFqGZ2rDLD
MD5 SHA1 SHA512 SSDEEP

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memory/3792-26-0x0000000074DB0000-0x0000000075361000-memory.dmp

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memory/3792-21-0x0000000000400000-0x000000000040C000-memory.dmp

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memory/3792-25-0x0000000074DB0000-0x0000000075361000-memory.dmp

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memory/3792-28-0x0000000074DB0000-0x0000000075361000-memory.dmp

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memory/3792-29-0x0000000074DB0000-0x0000000075361000-memory.dmp

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memory/4624-0-0x0000000074DB2000-0x0000000074DB3000-memory.dmp

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memory/4624-18-0x0000000074DB0000-0x0000000075361000-memory.dmp

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memory/4624-1-0x0000000074DB0000-0x0000000075361000-memory.dmp

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memory/4624-2-0x0000000074DB0000-0x0000000075361000-memory.dmp

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memory/4780-17-0x0000000074DB0000-0x0000000075361000-memory.dmp

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memory/4780-20-0x0000000074DB0000-0x0000000075361000-memory.dmp

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memory/4780-19-0x0000000074DB0000-0x0000000075361000-memory.dmp

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memory/4780-27-0x0000000074DB0000-0x0000000075361000-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