blacknet | b30eebf734354f55373978e395c912393f3c674aaa4717748ae449b09832f6ae

General

Target

b72d429d1d690165c7b0de4a074c4a58.exe
Size

117KB
MD5

b72d429d1d690165c7b0de4a074c4a58
SHA1

f0704d227482a80f2f90dab79ed4acd9770fe565
SHA256

b30eebf734354f55373978e395c912393f3c674aaa4717748ae449b09832f6ae
SHA512

f3b565e67d5a15d5305982701bd5f0d37eec0bfe2d152556584fa1d01faf1def6e616d0addea91e0663be084450b49f99e2108cc06a9b50c9e1482f9290b6c5c
SSDEEP

3072:qwS9xonGdoFlC5w/oV9RRKyfKW63beFEKyBFfa1:5CeSKyRPfKWybi1

Score

10^/10

blacknet bot evasion persistence trojan

Malware Config

Extracted

Family

blacknet

Version

v3.7.0 Public

Botnet

Bot

C2

http://furyx.de/panel

Mutex

BN[c1916af6f3a468e5b6f5c7f6b9c78982]

Attributes

antivm
false
elevate_uac
false
install_name
WindowsUpdate.exe
splitter
|BN|
start_name
e162b1333458a713bc6916cc8ac4110c
startup
false
usb_spread
true

aes.plain

Signatures

BlackNET
BlackNET is an open source remote access tool written in VB.NET.
trojan blacknet

BlackNET payload 3 IoCs

Processes:

resource	yara_rule
behavioral1/memory/2692-0-0x0000000000100000-0x0000000000122000-memory.dmp	family_blacknet
C:\Windows\Microsoft\MyClient\WindowsUpdate.exe	family_blacknet
behavioral1/memory/584-38-0x0000000000C50000-0x0000000000C72000-memory.dmp	family_blacknet

Contains code to disable Windows Defender 3 IoCs

A .NET executable tasked with disabling Windows Defender capabilities such as realtime monitoring, blocking at first seen, etc.

Processes:

resource	yara_rule
behavioral1/memory/2692-0-0x0000000000100000-0x0000000000122000-memory.dmp	disable_win_def
C:\Windows\Microsoft\MyClient\WindowsUpdate.exe	disable_win_def
behavioral1/memory/584-38-0x0000000000C50000-0x0000000000C72000-memory.dmp	disable_win_def

Modifies Windows Defender Real-time Protection settings 3 TTPs 4 IoCs

evasion trojan

Modify Registry

T1112

Windows Service

T1543.003

Disable or Modify Tools

T1562.001

Processes:

b72d429d1d690165c7b0de4a074c4a58.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection	b72d429d1d690165c7b0de4a074c4a58.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableBehaviorMonitoring = "1"	b72d429d1d690165c7b0de4a074c4a58.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableOnAccessProtection = "1"	b72d429d1d690165c7b0de4a074c4a58.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableScanOnRealtimeEnable = "1"	b72d429d1d690165c7b0de4a074c4a58.exe

Executes dropped EXE 1 IoCs

Processes:

WindowsUpdate.exe

pid process

584 WindowsUpdate.exe
Windows security modification 2 TTPs 1 IoCs
evasion trojan

Disable or Modify Tools
T1562.001

Modify Registry
T1112

Processes:

b72d429d1d690165c7b0de4a074c4a58.exe

description ioc process

Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Features b72d429d1d690165c7b0de4a074c4a58.exe

pid	process
584	WindowsUpdate.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Features	b72d429d1d690165c7b0de4a074c4a58.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

b72d429d1d690165c7b0de4a074c4a58.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000\Software\Microsoft\Windows\CurrentVersion\Run\e162b1333458a713bc6916cc8ac4110c = "C:\\Windows\\Microsoft\\MyClient\\WindowsUpdate.exe"	b72d429d1d690165c7b0de4a074c4a58.exe

Drops file in Windows directory 2 IoCs

Processes:

b72d429d1d690165c7b0de4a074c4a58.exe

description	ioc	process
File created	C:\Windows\Microsoft\MyClient\WindowsUpdate.exe	b72d429d1d690165c7b0de4a074c4a58.exe
File opened for modification	C:\Windows\Microsoft\MyClient\WindowsUpdate.exe	b72d429d1d690165c7b0de4a074c4a58.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082
Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
persistence

Scheduled Task/Job
T1053

Processes:

schtasks.exe

pid process

784 schtasks.exe

pid	process
784	schtasks.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

Processes:

b72d429d1d690165c7b0de4a074c4a58.exepowershell.exe

pid	process
2692	b72d429d1d690165c7b0de4a074c4a58.exe
2692	b72d429d1d690165c7b0de4a074c4a58.exe
2552	powershell.exe
2692	b72d429d1d690165c7b0de4a074c4a58.exe
2692	b72d429d1d690165c7b0de4a074c4a58.exe
2692	b72d429d1d690165c7b0de4a074c4a58.exe
2692	b72d429d1d690165c7b0de4a074c4a58.exe
2692	b72d429d1d690165c7b0de4a074c4a58.exe
2692	b72d429d1d690165c7b0de4a074c4a58.exe
2692	b72d429d1d690165c7b0de4a074c4a58.exe
2692	b72d429d1d690165c7b0de4a074c4a58.exe
2692	b72d429d1d690165c7b0de4a074c4a58.exe
2692	b72d429d1d690165c7b0de4a074c4a58.exe
2692	b72d429d1d690165c7b0de4a074c4a58.exe
2692	b72d429d1d690165c7b0de4a074c4a58.exe
2692	b72d429d1d690165c7b0de4a074c4a58.exe
2692	b72d429d1d690165c7b0de4a074c4a58.exe
2692	b72d429d1d690165c7b0de4a074c4a58.exe
2692	b72d429d1d690165c7b0de4a074c4a58.exe
2692	b72d429d1d690165c7b0de4a074c4a58.exe
2692	b72d429d1d690165c7b0de4a074c4a58.exe
2692	b72d429d1d690165c7b0de4a074c4a58.exe
2692	b72d429d1d690165c7b0de4a074c4a58.exe
2692	b72d429d1d690165c7b0de4a074c4a58.exe
2692	b72d429d1d690165c7b0de4a074c4a58.exe
2692	b72d429d1d690165c7b0de4a074c4a58.exe
2692	b72d429d1d690165c7b0de4a074c4a58.exe
2692	b72d429d1d690165c7b0de4a074c4a58.exe
2692	b72d429d1d690165c7b0de4a074c4a58.exe
2692	b72d429d1d690165c7b0de4a074c4a58.exe
2692	b72d429d1d690165c7b0de4a074c4a58.exe
2692	b72d429d1d690165c7b0de4a074c4a58.exe
2692	b72d429d1d690165c7b0de4a074c4a58.exe
2692	b72d429d1d690165c7b0de4a074c4a58.exe
2692	b72d429d1d690165c7b0de4a074c4a58.exe
2692	b72d429d1d690165c7b0de4a074c4a58.exe
2692	b72d429d1d690165c7b0de4a074c4a58.exe
2692	b72d429d1d690165c7b0de4a074c4a58.exe
2692	b72d429d1d690165c7b0de4a074c4a58.exe
2692	b72d429d1d690165c7b0de4a074c4a58.exe
2692	b72d429d1d690165c7b0de4a074c4a58.exe
2692	b72d429d1d690165c7b0de4a074c4a58.exe
2692	b72d429d1d690165c7b0de4a074c4a58.exe
2692	b72d429d1d690165c7b0de4a074c4a58.exe
2692	b72d429d1d690165c7b0de4a074c4a58.exe
2692	b72d429d1d690165c7b0de4a074c4a58.exe
2692	b72d429d1d690165c7b0de4a074c4a58.exe
2692	b72d429d1d690165c7b0de4a074c4a58.exe
2692	b72d429d1d690165c7b0de4a074c4a58.exe
2692	b72d429d1d690165c7b0de4a074c4a58.exe
2692	b72d429d1d690165c7b0de4a074c4a58.exe
2692	b72d429d1d690165c7b0de4a074c4a58.exe
2692	b72d429d1d690165c7b0de4a074c4a58.exe
2692	b72d429d1d690165c7b0de4a074c4a58.exe
2692	b72d429d1d690165c7b0de4a074c4a58.exe
2692	b72d429d1d690165c7b0de4a074c4a58.exe
2692	b72d429d1d690165c7b0de4a074c4a58.exe
2692	b72d429d1d690165c7b0de4a074c4a58.exe
2692	b72d429d1d690165c7b0de4a074c4a58.exe
2692	b72d429d1d690165c7b0de4a074c4a58.exe
2692	b72d429d1d690165c7b0de4a074c4a58.exe
2692	b72d429d1d690165c7b0de4a074c4a58.exe
2692	b72d429d1d690165c7b0de4a074c4a58.exe
2692	b72d429d1d690165c7b0de4a074c4a58.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

b72d429d1d690165c7b0de4a074c4a58.exepowershell.exeWindowsUpdate.exe

description	pid	process
Token: SeDebugPrivilege	2692	b72d429d1d690165c7b0de4a074c4a58.exe
Token: SeDebugPrivilege	2552	powershell.exe
Token: SeDebugPrivilege	584	WindowsUpdate.exe

Suspicious use of SetWindowsHookEx 5 IoCs

Processes:

b72d429d1d690165c7b0de4a074c4a58.exeWindowsUpdate.exe

pid	process
2692	b72d429d1d690165c7b0de4a074c4a58.exe
2692	b72d429d1d690165c7b0de4a074c4a58.exe
2692	b72d429d1d690165c7b0de4a074c4a58.exe
584	WindowsUpdate.exe
584	WindowsUpdate.exe

Suspicious use of WriteProcessMemory 15 IoCs

Processes:

b72d429d1d690165c7b0de4a074c4a58.exe

description	pid	process	target process
PID 2692 wrote to memory of 2552	2692	b72d429d1d690165c7b0de4a074c4a58.exe	powershell.exe
PID 2692 wrote to memory of 2552	2692	b72d429d1d690165c7b0de4a074c4a58.exe	powershell.exe
PID 2692 wrote to memory of 2552	2692	b72d429d1d690165c7b0de4a074c4a58.exe	powershell.exe
PID 2692 wrote to memory of 2436	2692	b72d429d1d690165c7b0de4a074c4a58.exe	schtasks.exe
PID 2692 wrote to memory of 2436	2692	b72d429d1d690165c7b0de4a074c4a58.exe	schtasks.exe
PID 2692 wrote to memory of 2436	2692	b72d429d1d690165c7b0de4a074c4a58.exe	schtasks.exe
PID 2692 wrote to memory of 380	2692	b72d429d1d690165c7b0de4a074c4a58.exe	WerFault.exe
PID 2692 wrote to memory of 380	2692	b72d429d1d690165c7b0de4a074c4a58.exe	WerFault.exe
PID 2692 wrote to memory of 380	2692	b72d429d1d690165c7b0de4a074c4a58.exe	WerFault.exe
PID 2692 wrote to memory of 584	2692	b72d429d1d690165c7b0de4a074c4a58.exe	WindowsUpdate.exe
PID 2692 wrote to memory of 584	2692	b72d429d1d690165c7b0de4a074c4a58.exe	WindowsUpdate.exe
PID 2692 wrote to memory of 584	2692	b72d429d1d690165c7b0de4a074c4a58.exe	WindowsUpdate.exe
PID 2692 wrote to memory of 784	2692	b72d429d1d690165c7b0de4a074c4a58.exe	schtasks.exe
PID 2692 wrote to memory of 784	2692	b72d429d1d690165c7b0de4a074c4a58.exe	schtasks.exe
PID 2692 wrote to memory of 784	2692	b72d429d1d690165c7b0de4a074c4a58.exe	schtasks.exe

Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
persistence

Query Registry
T1012

C:\Users\Admin\AppData\Local\Temp\b72d429d1d690165c7b0de4a074c4a58.exe
"C:\Users\Admin\AppData\Local\Temp\b72d429d1d690165c7b0de4a074c4a58.exe"
1⤵
- Modifies Windows Defender Real-time Protection settings
- Windows security modification
- Adds Run key to start application
- Drops file in Windows directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2692

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
"powershell" Get-MpPreference -verbose
2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2552

C:\Windows\system32\schtasks.exe
"schtasks" /delete /tn "WindowsUpdate.exe" /f
2⤵
PID:2436

C:\Windows\system32\WerFault.exe
C:\Windows\system32\WerFault.exe -u -p 2692 -s 1076
2⤵
PID:380

C:\Windows\Microsoft\MyClient\WindowsUpdate.exe
"C:\Windows\Microsoft\MyClient\WindowsUpdate.exe"
2⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
PID:584

C:\Windows\system32\schtasks.exe
"schtasks" /create /tn "WindowsUpdate.exe" /sc ONLOGON /tr "C:\Windows\WindowsUpdate.exe" /rl HIGHEST /f
2⤵
- Creates scheduled task(s)
PID:784

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Scheduled Task/Job

1

T1053

Persistence

Create or Modify System Process

1

T1543

Windows Service

1

T1543.003

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

Scheduled Task/Job

Privilege Escalation

Create or Modify System Process

1

T1543

Windows Service

1

T1543.003

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

Scheduled Task/Job

Defense Evasion

Modify Registry

3

T1112

Impair Defenses

2

T1562

Disable or Modify Tools

2

T1562.001

Credential Access

Discovery

System Information Discovery

1

T1082

Query Registry

1

T1012

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

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Downloads

C:\Windows\Microsoft\MyClient\WindowsUpdate.exe
Filesize
117KB

MD5
b72d429d1d690165c7b0de4a074c4a58

SHA1
f0704d227482a80f2f90dab79ed4acd9770fe565

SHA256
b30eebf734354f55373978e395c912393f3c674aaa4717748ae449b09832f6ae

SHA512
f3b565e67d5a15d5305982701bd5f0d37eec0bfe2d152556584fa1d01faf1def6e616d0addea91e0663be084450b49f99e2108cc06a9b50c9e1482f9290b6c5c

Download Submit
memory/584-46-0x000007FEF5D30000-0x000007FEF671C000-memory.dmp

Filesize
9.9MB

Download
memory/584-42-0x000000001AE50000-0x000000001AED0000-memory.dmp

Filesize
512KB

Download
memory/584-43-0x000000001AE50000-0x000000001AED0000-memory.dmp

Filesize
512KB

Download
memory/584-45-0x000000001AE50000-0x000000001AED0000-memory.dmp

Filesize
512KB

Download
memory/584-44-0x000000001AE50000-0x000000001AED0000-memory.dmp

Filesize
512KB

Download
memory/584-40-0x000007FEF5D30000-0x000007FEF671C000-memory.dmp

Filesize
9.9MB

Download
memory/584-38-0x0000000000C50000-0x0000000000C72000-memory.dmp

Filesize
136KB

Download
memory/2552-14-0x0000000002480000-0x0000000002500000-memory.dmp

Filesize
512KB

Download
memory/2552-13-0x000007FEEE250000-0x000007FEEEBED000-memory.dmp

Filesize
9.6MB

Download
memory/2552-9-0x000000001B370000-0x000000001B652000-memory.dmp

Filesize
2.9MB

Download
memory/2552-15-0x0000000002480000-0x0000000002500000-memory.dmp

Filesize
512KB

Download
memory/2552-16-0x0000000002480000-0x0000000002500000-memory.dmp

Filesize
512KB

Download
memory/2552-17-0x000007FEEE250000-0x000007FEEEBED000-memory.dmp

Filesize
9.6MB

Download
memory/2552-10-0x0000000002390000-0x0000000002398000-memory.dmp

Filesize
32KB

Download
memory/2552-11-0x000007FEEE250000-0x000007FEEEBED000-memory.dmp

Filesize
9.6MB

Download
memory/2552-12-0x0000000002480000-0x0000000002500000-memory.dmp

Filesize
512KB

Download
memory/2692-19-0x00000000002C0000-0x0000000000340000-memory.dmp

Filesize
512KB

Download
memory/2692-18-0x00000000002C0000-0x0000000000340000-memory.dmp

Filesize
512KB

Download
memory/2692-23-0x00000000002C0000-0x0000000000340000-memory.dmp

Filesize
512KB

Download
memory/2692-24-0x000000001F820000-0x000000001F920000-memory.dmp

Filesize
1024KB

Download
memory/2692-26-0x000000001F820000-0x000000001F920000-memory.dmp

Filesize
1024KB

Download
memory/2692-25-0x000000001F820000-0x000000001F920000-memory.dmp

Filesize
1024KB

Download
memory/2692-28-0x000000001F820000-0x000000001F920000-memory.dmp

Filesize
1024KB

Download
memory/2692-27-0x000000001F820000-0x000000001F920000-memory.dmp

Filesize
1024KB

Download
memory/2692-32-0x00000000002C0000-0x0000000000340000-memory.dmp

Filesize
512KB

Download
memory/2692-36-0x000000001F820000-0x000000001F920000-memory.dmp

Filesize
1024KB

Download
memory/2692-21-0x00000000002C0000-0x0000000000340000-memory.dmp

Filesize
512KB

Download
memory/2692-20-0x00000000002C0000-0x0000000000340000-memory.dmp

Filesize
512KB

Download
memory/2692-39-0x000000001F820000-0x000000001F920000-memory.dmp

Filesize
1024KB

Download
memory/2692-22-0x00000000002C0000-0x0000000000340000-memory.dmp

Filesize
512KB

Download
memory/2692-29-0x000000001F820000-0x000000001F920000-memory.dmp

Filesize
1024KB

Download
memory/2692-41-0x000007FEF5D30000-0x000007FEF671C000-memory.dmp

Filesize
9.9MB

Download
memory/2692-0-0x0000000000100000-0x0000000000122000-memory.dmp

Filesize
136KB

Download
memory/2692-4-0x00000000002C0000-0x0000000000340000-memory.dmp

Filesize
512KB

Download
memory/2692-3-0x00000000002C0000-0x0000000000340000-memory.dmp

Filesize
512KB

Download
memory/2692-2-0x00000000002C0000-0x0000000000340000-memory.dmp

Filesize
512KB

Download
memory/2692-1-0x000007FEF5D30000-0x000007FEF671C000-memory.dmp

Filesize
9.9MB

Download
memory/2692-47-0x00000000002C0000-0x0000000000340000-memory.dmp

Filesize
512KB

Download
memory/2692-48-0x000000001F820000-0x000000001F920000-memory.dmp

Filesize
1024KB

Download
memory/2692-50-0x000000001F820000-0x000000001F920000-memory.dmp

Filesize
1024KB

Download
memory/2692-49-0x000000001F820000-0x000000001F920000-memory.dmp

Filesize
1024KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v13

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Downloads