blacknet | 0cfd96c0bef9061e95adbc2f00f6e0bd39c1103ca4761c9af850528d28455b44

Analysis

max time kernel
8s
max time network
43s
platform
windows10-2004_x64
resource
win10v2004-20221111-en
resource tags

arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
submitted
16/11/2022, 06:50

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General

Target

0cfd96c0bef9061e95adbc2f00f6e0bd39c1103ca4761c9af850528d28455b44.exe
Size

356KB
MD5

354d20e21be15dd24eb8a9b2b18a8407
SHA1

f3c9182f5a8a45ee8f9cbcf2e4584c38ff670533
SHA256

0cfd96c0bef9061e95adbc2f00f6e0bd39c1103ca4761c9af850528d28455b44
SHA512

7bcfd0d2bca8a7bc3f0836c012438125cabdac11e7978f3d8a55ace928fe98ceac8ddf7cab146847ad9c9299c9231711df5b52cb0e429bcb5f519fae7353edb5
SSDEEP

6144:XBlALeoB8aMc2d4XPRSdUGACTse5kjVPqpc2NgqDIZYm8dDb1tqisSc85AjPdA4/:XkqGofP/HRLRoveIP95TDKkg30XS

Score

10^/10

blacknet round3 evasion persistence trojan

Malware Config

Extracted

Family

blacknet

Version

v3.7.0 Public

Botnet

Round3

http://zee.zight.ru

Mutex

BN[d396d077ee81b07d64cc8bbff27bbccb]

Attributes

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

aes.plain

Signatures

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

BlackNET payload 1 IoCs

resource	yara_rule
behavioral1/memory/2300-138-0x0000000000770000-0x0000000000792000-memory.dmp	family_blacknet

Contains code to disable Windows Defender 1 IoCs

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

resource	yara_rule
behavioral1/memory/2300-138-0x0000000000770000-0x0000000000792000-memory.dmp	disable_win_def

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

evasion trojan

Modify Registry

T1112

Modify Existing Service

T1031

Disabling Security Tools

T1089

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableBehaviorMonitoring = "1"	0cfd96c0bef9061e95adbc2f00f6e0bd39c1103ca4761c9af850528d28455b44.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableOnAccessProtection = "1"	0cfd96c0bef9061e95adbc2f00f6e0bd39c1103ca4761c9af850528d28455b44.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableScanOnRealtimeEnable = "1"	0cfd96c0bef9061e95adbc2f00f6e0bd39c1103ca4761c9af850528d28455b44.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Policies\Microsoft\Windows Defender\Real-Time Protection	0cfd96c0bef9061e95adbc2f00f6e0bd39c1103ca4761c9af850528d28455b44.exe

Windows security modification 2 TTPs 2 IoCs

evasion trojan

Disabling Security Tools

T1089

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows Defender\Features	0cfd96c0bef9061e95adbc2f00f6e0bd39c1103ca4761c9af850528d28455b44.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows Defender\Features\TamperProtection = "0"	0cfd96c0bef9061e95adbc2f00f6e0bd39c1103ca4761c9af850528d28455b44.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-2971393436-602173351-1645505021-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\e162b1333458a713bc6916cc8ac4110c = "C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\MyClient\\GPUpdate.exe"	0cfd96c0bef9061e95adbc2f00f6e0bd39c1103ca4761c9af850528d28455b44.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3384 set thread context of 2300	3384	0cfd96c0bef9061e95adbc2f00f6e0bd39c1103ca4761c9af850528d28455b44.exe	82

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

System Information Discovery
T1082

Program crash 1 IoCs

pid	pid_target	Process	procid_target
4148	2300	WerFault.exe	82

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

T1053

pid	Process
4064	schtasks.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
2300	0cfd96c0bef9061e95adbc2f00f6e0bd39c1103ca4761c9af850528d28455b44.exe
2300	0cfd96c0bef9061e95adbc2f00f6e0bd39c1103ca4761c9af850528d28455b44.exe
2300	0cfd96c0bef9061e95adbc2f00f6e0bd39c1103ca4761c9af850528d28455b44.exe
2300	0cfd96c0bef9061e95adbc2f00f6e0bd39c1103ca4761c9af850528d28455b44.exe
2300	0cfd96c0bef9061e95adbc2f00f6e0bd39c1103ca4761c9af850528d28455b44.exe
2300	0cfd96c0bef9061e95adbc2f00f6e0bd39c1103ca4761c9af850528d28455b44.exe
2300	0cfd96c0bef9061e95adbc2f00f6e0bd39c1103ca4761c9af850528d28455b44.exe
2300	0cfd96c0bef9061e95adbc2f00f6e0bd39c1103ca4761c9af850528d28455b44.exe
2300	0cfd96c0bef9061e95adbc2f00f6e0bd39c1103ca4761c9af850528d28455b44.exe
2300	0cfd96c0bef9061e95adbc2f00f6e0bd39c1103ca4761c9af850528d28455b44.exe
2300	0cfd96c0bef9061e95adbc2f00f6e0bd39c1103ca4761c9af850528d28455b44.exe
2300	0cfd96c0bef9061e95adbc2f00f6e0bd39c1103ca4761c9af850528d28455b44.exe
2300	0cfd96c0bef9061e95adbc2f00f6e0bd39c1103ca4761c9af850528d28455b44.exe
2300	0cfd96c0bef9061e95adbc2f00f6e0bd39c1103ca4761c9af850528d28455b44.exe
2300	0cfd96c0bef9061e95adbc2f00f6e0bd39c1103ca4761c9af850528d28455b44.exe
2300	0cfd96c0bef9061e95adbc2f00f6e0bd39c1103ca4761c9af850528d28455b44.exe
2300	0cfd96c0bef9061e95adbc2f00f6e0bd39c1103ca4761c9af850528d28455b44.exe
2300	0cfd96c0bef9061e95adbc2f00f6e0bd39c1103ca4761c9af850528d28455b44.exe
2300	0cfd96c0bef9061e95adbc2f00f6e0bd39c1103ca4761c9af850528d28455b44.exe
2300	0cfd96c0bef9061e95adbc2f00f6e0bd39c1103ca4761c9af850528d28455b44.exe
2300	0cfd96c0bef9061e95adbc2f00f6e0bd39c1103ca4761c9af850528d28455b44.exe
1352	powershell.exe
1352	powershell.exe
2300	0cfd96c0bef9061e95adbc2f00f6e0bd39c1103ca4761c9af850528d28455b44.exe
2300	0cfd96c0bef9061e95adbc2f00f6e0bd39c1103ca4761c9af850528d28455b44.exe
2300	0cfd96c0bef9061e95adbc2f00f6e0bd39c1103ca4761c9af850528d28455b44.exe
2300	0cfd96c0bef9061e95adbc2f00f6e0bd39c1103ca4761c9af850528d28455b44.exe
2300	0cfd96c0bef9061e95adbc2f00f6e0bd39c1103ca4761c9af850528d28455b44.exe
2300	0cfd96c0bef9061e95adbc2f00f6e0bd39c1103ca4761c9af850528d28455b44.exe
2300	0cfd96c0bef9061e95adbc2f00f6e0bd39c1103ca4761c9af850528d28455b44.exe
2300	0cfd96c0bef9061e95adbc2f00f6e0bd39c1103ca4761c9af850528d28455b44.exe
2300	0cfd96c0bef9061e95adbc2f00f6e0bd39c1103ca4761c9af850528d28455b44.exe
2300	0cfd96c0bef9061e95adbc2f00f6e0bd39c1103ca4761c9af850528d28455b44.exe
2300	0cfd96c0bef9061e95adbc2f00f6e0bd39c1103ca4761c9af850528d28455b44.exe
2300	0cfd96c0bef9061e95adbc2f00f6e0bd39c1103ca4761c9af850528d28455b44.exe
2300	0cfd96c0bef9061e95adbc2f00f6e0bd39c1103ca4761c9af850528d28455b44.exe
2300	0cfd96c0bef9061e95adbc2f00f6e0bd39c1103ca4761c9af850528d28455b44.exe
2300	0cfd96c0bef9061e95adbc2f00f6e0bd39c1103ca4761c9af850528d28455b44.exe
2300	0cfd96c0bef9061e95adbc2f00f6e0bd39c1103ca4761c9af850528d28455b44.exe
2300	0cfd96c0bef9061e95adbc2f00f6e0bd39c1103ca4761c9af850528d28455b44.exe
2300	0cfd96c0bef9061e95adbc2f00f6e0bd39c1103ca4761c9af850528d28455b44.exe
2300	0cfd96c0bef9061e95adbc2f00f6e0bd39c1103ca4761c9af850528d28455b44.exe
2300	0cfd96c0bef9061e95adbc2f00f6e0bd39c1103ca4761c9af850528d28455b44.exe
2300	0cfd96c0bef9061e95adbc2f00f6e0bd39c1103ca4761c9af850528d28455b44.exe
2300	0cfd96c0bef9061e95adbc2f00f6e0bd39c1103ca4761c9af850528d28455b44.exe
2300	0cfd96c0bef9061e95adbc2f00f6e0bd39c1103ca4761c9af850528d28455b44.exe
2300	0cfd96c0bef9061e95adbc2f00f6e0bd39c1103ca4761c9af850528d28455b44.exe
2300	0cfd96c0bef9061e95adbc2f00f6e0bd39c1103ca4761c9af850528d28455b44.exe
2300	0cfd96c0bef9061e95adbc2f00f6e0bd39c1103ca4761c9af850528d28455b44.exe
2300	0cfd96c0bef9061e95adbc2f00f6e0bd39c1103ca4761c9af850528d28455b44.exe
2300	0cfd96c0bef9061e95adbc2f00f6e0bd39c1103ca4761c9af850528d28455b44.exe
2300	0cfd96c0bef9061e95adbc2f00f6e0bd39c1103ca4761c9af850528d28455b44.exe
2300	0cfd96c0bef9061e95adbc2f00f6e0bd39c1103ca4761c9af850528d28455b44.exe
2300	0cfd96c0bef9061e95adbc2f00f6e0bd39c1103ca4761c9af850528d28455b44.exe
2300	0cfd96c0bef9061e95adbc2f00f6e0bd39c1103ca4761c9af850528d28455b44.exe
2300	0cfd96c0bef9061e95adbc2f00f6e0bd39c1103ca4761c9af850528d28455b44.exe
2300	0cfd96c0bef9061e95adbc2f00f6e0bd39c1103ca4761c9af850528d28455b44.exe
2300	0cfd96c0bef9061e95adbc2f00f6e0bd39c1103ca4761c9af850528d28455b44.exe
2300	0cfd96c0bef9061e95adbc2f00f6e0bd39c1103ca4761c9af850528d28455b44.exe
2300	0cfd96c0bef9061e95adbc2f00f6e0bd39c1103ca4761c9af850528d28455b44.exe
2300	0cfd96c0bef9061e95adbc2f00f6e0bd39c1103ca4761c9af850528d28455b44.exe
2300	0cfd96c0bef9061e95adbc2f00f6e0bd39c1103ca4761c9af850528d28455b44.exe
2300	0cfd96c0bef9061e95adbc2f00f6e0bd39c1103ca4761c9af850528d28455b44.exe
2300	0cfd96c0bef9061e95adbc2f00f6e0bd39c1103ca4761c9af850528d28455b44.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2300	0cfd96c0bef9061e95adbc2f00f6e0bd39c1103ca4761c9af850528d28455b44.exe
Token: SeDebugPrivilege	1352	powershell.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2300	0cfd96c0bef9061e95adbc2f00f6e0bd39c1103ca4761c9af850528d28455b44.exe
2300	0cfd96c0bef9061e95adbc2f00f6e0bd39c1103ca4761c9af850528d28455b44.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 3384 wrote to memory of 2300	3384	0cfd96c0bef9061e95adbc2f00f6e0bd39c1103ca4761c9af850528d28455b44.exe	82
PID 3384 wrote to memory of 2300	3384	0cfd96c0bef9061e95adbc2f00f6e0bd39c1103ca4761c9af850528d28455b44.exe	82
PID 3384 wrote to memory of 2300	3384	0cfd96c0bef9061e95adbc2f00f6e0bd39c1103ca4761c9af850528d28455b44.exe	82
PID 3384 wrote to memory of 2300	3384	0cfd96c0bef9061e95adbc2f00f6e0bd39c1103ca4761c9af850528d28455b44.exe	82
PID 3384 wrote to memory of 2300	3384	0cfd96c0bef9061e95adbc2f00f6e0bd39c1103ca4761c9af850528d28455b44.exe	82
PID 3384 wrote to memory of 2300	3384	0cfd96c0bef9061e95adbc2f00f6e0bd39c1103ca4761c9af850528d28455b44.exe	82
PID 3384 wrote to memory of 2300	3384	0cfd96c0bef9061e95adbc2f00f6e0bd39c1103ca4761c9af850528d28455b44.exe	82
PID 3384 wrote to memory of 2300	3384	0cfd96c0bef9061e95adbc2f00f6e0bd39c1103ca4761c9af850528d28455b44.exe	82
PID 3384 wrote to memory of 4676	3384	0cfd96c0bef9061e95adbc2f00f6e0bd39c1103ca4761c9af850528d28455b44.exe	83
PID 3384 wrote to memory of 4676	3384	0cfd96c0bef9061e95adbc2f00f6e0bd39c1103ca4761c9af850528d28455b44.exe	83
PID 3384 wrote to memory of 4676	3384	0cfd96c0bef9061e95adbc2f00f6e0bd39c1103ca4761c9af850528d28455b44.exe	83
PID 3384 wrote to memory of 1712	3384	0cfd96c0bef9061e95adbc2f00f6e0bd39c1103ca4761c9af850528d28455b44.exe	85
PID 3384 wrote to memory of 1712	3384	0cfd96c0bef9061e95adbc2f00f6e0bd39c1103ca4761c9af850528d28455b44.exe	85
PID 3384 wrote to memory of 1712	3384	0cfd96c0bef9061e95adbc2f00f6e0bd39c1103ca4761c9af850528d28455b44.exe	85
PID 3384 wrote to memory of 3260	3384	0cfd96c0bef9061e95adbc2f00f6e0bd39c1103ca4761c9af850528d28455b44.exe	88
PID 3384 wrote to memory of 3260	3384	0cfd96c0bef9061e95adbc2f00f6e0bd39c1103ca4761c9af850528d28455b44.exe	88
PID 3384 wrote to memory of 3260	3384	0cfd96c0bef9061e95adbc2f00f6e0bd39c1103ca4761c9af850528d28455b44.exe	88
PID 1712 wrote to memory of 4064	1712	cmd.exe	89
PID 1712 wrote to memory of 4064	1712	cmd.exe	89
PID 1712 wrote to memory of 4064	1712	cmd.exe	89
PID 2300 wrote to memory of 1352	2300	0cfd96c0bef9061e95adbc2f00f6e0bd39c1103ca4761c9af850528d28455b44.exe	90
PID 2300 wrote to memory of 1352	2300	0cfd96c0bef9061e95adbc2f00f6e0bd39c1103ca4761c9af850528d28455b44.exe	90
PID 2300 wrote to memory of 1352	2300	0cfd96c0bef9061e95adbc2f00f6e0bd39c1103ca4761c9af850528d28455b44.exe	90

C:\Users\Admin\AppData\Local\Temp\0cfd96c0bef9061e95adbc2f00f6e0bd39c1103ca4761c9af850528d28455b44.exe
"C:\Users\Admin\AppData\Local\Temp\0cfd96c0bef9061e95adbc2f00f6e0bd39c1103ca4761c9af850528d28455b44.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:3384
- C:\Users\Admin\AppData\Local\Temp\0cfd96c0bef9061e95adbc2f00f6e0bd39c1103ca4761c9af850528d28455b44.exe
  "C:\Users\Admin\AppData\Local\Temp\0cfd96c0bef9061e95adbc2f00f6e0bd39c1103ca4761c9af850528d28455b44.exe"
  2⤵
  - Modifies Windows Defender Real-time Protection settings
  - Windows security modification
  - Adds Run key to start application
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:2300
- - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
    "powershell" Get-MpPreference -verbose
    3⤵
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:1352
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2300 -s 1644
    3⤵
    - Program crash
    PID:4148
- C:\Windows\SysWOW64\cmd.exe
  "cmd" /c mkdir "C:\Users\Admin\AppData\Roaming\RegStart"
  2⤵
  PID:4676
- C:\Windows\SysWOW64\cmd.exe
  "cmd" /c schtasks /create /sc minute /mo 1 /tn "Nafifas" /tr "'C:\Users\Admin\AppData\Roaming\RegStart\RegStart.exe'" /f
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:1712
- - C:\Windows\SysWOW64\schtasks.exe
    schtasks /create /sc minute /mo 1 /tn "Nafifas" /tr "'C:\Users\Admin\AppData\Roaming\RegStart\RegStart.exe'" /f
    3⤵
    - Creates scheduled task(s)
    PID:4064
- C:\Windows\SysWOW64\cmd.exe
  "cmd" /c copy "C:\Users\Admin\AppData\Local\Temp\0cfd96c0bef9061e95adbc2f00f6e0bd39c1103ca4761c9af850528d28455b44.exe" "C:\Users\Admin\AppData\Roaming\RegStart\RegStart.exe"
  2⤵
  PID:3260

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 360 -p 2300 -ip 2300
1⤵
PID:3508

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Scheduled Task

T1053

Persistence

Modify Existing Service

T1031

Registry Run Keys / Startup Folder

T1060

Scheduled Task

T1053

Privilege Escalation

Scheduled Task

T1053

Defense Evasion

Disabling Security Tools

T1089

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/1352-157-0x0000000006E50000-0x0000000006E5A000-memory.dmp

Filesize
40KB

Download
memory/1352-158-0x0000000007060000-0x00000000070F6000-memory.dmp

Filesize
600KB

Download
memory/1352-165-0x0000000007100000-0x0000000007108000-memory.dmp

Filesize
32KB

Download
memory/1352-164-0x0000000007120000-0x000000000713A000-memory.dmp

Filesize
104KB

Download
memory/1352-163-0x0000000007010000-0x000000000701E000-memory.dmp

Filesize
56KB

Download
memory/1352-151-0x0000000005AE0000-0x0000000005AFE000-memory.dmp

Filesize
120KB

Download
memory/1352-156-0x0000000006DE0000-0x0000000006DFA000-memory.dmp

Filesize
104KB

Download
memory/1352-155-0x0000000007420000-0x0000000007A9A000-memory.dmp

Filesize
6.5MB

Download
memory/1352-154-0x0000000006080000-0x000000000609E000-memory.dmp

Filesize
120KB

Download
memory/1352-153-0x000000006E840000-0x000000006E88C000-memory.dmp

Filesize
304KB

Download
memory/1352-152-0x00000000060A0000-0x00000000060D2000-memory.dmp

Filesize
200KB

Download
memory/1352-149-0x0000000004A10000-0x0000000004A32000-memory.dmp

Filesize
136KB

Download
memory/1352-150-0x0000000004BB0000-0x0000000004C16000-memory.dmp

Filesize
408KB

Download
memory/1352-147-0x0000000000D50000-0x0000000000D86000-memory.dmp

Filesize
216KB

Download
memory/1352-148-0x0000000004DF0000-0x0000000005418000-memory.dmp

Filesize
6.2MB

Download
memory/2300-138-0x0000000000770000-0x0000000000792000-memory.dmp

Filesize
136KB

Download
memory/2300-159-0x0000000004D80000-0x0000000005324000-memory.dmp

Filesize
5.6MB

Download
memory/2300-142-0x0000000004D80000-0x0000000004E12000-memory.dmp

Filesize
584KB

Download
memory/2300-140-0x0000000004CE0000-0x0000000004D7C000-memory.dmp

Filesize
624KB

Download
memory/2300-162-0x000000000A357000-0x000000000A35A000-memory.dmp

Filesize
12KB

Download
memory/2300-144-0x0000000004C40000-0x0000000004C4A000-memory.dmp

Filesize
40KB

Download
memory/2300-161-0x000000000A354000-0x000000000A357000-memory.dmp

Filesize
12KB

Download
memory/2300-160-0x000000000A350000-0x000000000A354000-memory.dmp

Filesize
16KB

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memory/2300-145-0x0000000004E20000-0x0000000004E76000-memory.dmp

Filesize
344KB

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memory/3384-132-0x0000000000940000-0x000000000099E000-memory.dmp

Filesize
376KB

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memory/3384-133-0x00000000057A0000-0x0000000005D44000-memory.dmp

Filesize
5.6MB

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memory/3384-134-0x00000000051F0000-0x0000000005256000-memory.dmp

Filesize
408KB

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