blacknet | 13e2a1bcc72fa5a6366d3ce2a21f283ed8bdd50d5f41038c909f0a6b9633337c

Analysis

max time kernel
9s
max time network
122s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
26-10-2024 03:04

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General

Target

13e2a1bcc72fa5a6366d3ce2a21f283ed8bdd50d5f41038c909f0a6b9633337cN.exe
Size

70KB
MD5

d94ef7acefbc20ddea7c5509b4b0bc90
SHA1

f6dd42a0e47980823acedbba7d063b63f17fe8e4
SHA256

13e2a1bcc72fa5a6366d3ce2a21f283ed8bdd50d5f41038c909f0a6b9633337c
SHA512

c8a10a85cdaea99360a45119e803a7059983f9453731eb58174b9409f85b182dbbc6fabab49137bc8946d9f4e3afd1df03853818557656b66760b0832f0f1062
SSDEEP

1536:gFTnqpKxynVWGeifCSzTPb542HkLbvJfxa:gFTPGeifrvb59H+bvJ5a

Score

10^/10

blacknet persistence trojan

Malware Config

Signatures

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

BlackNET payload 1 IoCs

resource	yara_rule
behavioral2/files/0x000d000000023b6c-19.dat	family_blacknet

Blacknet 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
behavioral2/files/0x000d000000023b6c-19.dat	disable_win_def

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-1-5-21-493223053-2004649691-1575712786-1000\Control Panel\International\Geo\Nation	13e2a1bcc72fa5a6366d3ce2a21f283ed8bdd50d5f41038c909f0a6b9633337cN.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-1-5-21-493223053-2004649691-1575712786-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\2965b7eabf9eb6ce83de7d2260ab71ba = "C:\\Users\\Admin\\AppData\\Local\\Temp\\13e2a1bcc72fa5a6366d3ce2a21f283ed8bdd50d5f41038c909f0a6b9633337cN.exe"	13e2a1bcc72fa5a6366d3ce2a21f283ed8bdd50d5f41038c909f0a6b9633337cN.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\2965b7eabf9eb6ce83de7d2260ab71ba = "C:\\Users\\Admin\\AppData\\Local\\Temp\\Microsoft\\MyClient\\WindowsUpdate.exe"	13e2a1bcc72fa5a6366d3ce2a21f283ed8bdd50d5f41038c909f0a6b9633337cN.exe

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

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 29 IoCs

pid	Process
2324	13e2a1bcc72fa5a6366d3ce2a21f283ed8bdd50d5f41038c909f0a6b9633337cN.exe
2324	13e2a1bcc72fa5a6366d3ce2a21f283ed8bdd50d5f41038c909f0a6b9633337cN.exe
2324	13e2a1bcc72fa5a6366d3ce2a21f283ed8bdd50d5f41038c909f0a6b9633337cN.exe
2324	13e2a1bcc72fa5a6366d3ce2a21f283ed8bdd50d5f41038c909f0a6b9633337cN.exe
2324	13e2a1bcc72fa5a6366d3ce2a21f283ed8bdd50d5f41038c909f0a6b9633337cN.exe
2324	13e2a1bcc72fa5a6366d3ce2a21f283ed8bdd50d5f41038c909f0a6b9633337cN.exe
2324	13e2a1bcc72fa5a6366d3ce2a21f283ed8bdd50d5f41038c909f0a6b9633337cN.exe
2324	13e2a1bcc72fa5a6366d3ce2a21f283ed8bdd50d5f41038c909f0a6b9633337cN.exe
2324	13e2a1bcc72fa5a6366d3ce2a21f283ed8bdd50d5f41038c909f0a6b9633337cN.exe
2324	13e2a1bcc72fa5a6366d3ce2a21f283ed8bdd50d5f41038c909f0a6b9633337cN.exe
2324	13e2a1bcc72fa5a6366d3ce2a21f283ed8bdd50d5f41038c909f0a6b9633337cN.exe
2324	13e2a1bcc72fa5a6366d3ce2a21f283ed8bdd50d5f41038c909f0a6b9633337cN.exe
2324	13e2a1bcc72fa5a6366d3ce2a21f283ed8bdd50d5f41038c909f0a6b9633337cN.exe
2324	13e2a1bcc72fa5a6366d3ce2a21f283ed8bdd50d5f41038c909f0a6b9633337cN.exe
2324	13e2a1bcc72fa5a6366d3ce2a21f283ed8bdd50d5f41038c909f0a6b9633337cN.exe
2324	13e2a1bcc72fa5a6366d3ce2a21f283ed8bdd50d5f41038c909f0a6b9633337cN.exe
2324	13e2a1bcc72fa5a6366d3ce2a21f283ed8bdd50d5f41038c909f0a6b9633337cN.exe
2324	13e2a1bcc72fa5a6366d3ce2a21f283ed8bdd50d5f41038c909f0a6b9633337cN.exe
2324	13e2a1bcc72fa5a6366d3ce2a21f283ed8bdd50d5f41038c909f0a6b9633337cN.exe
2324	13e2a1bcc72fa5a6366d3ce2a21f283ed8bdd50d5f41038c909f0a6b9633337cN.exe
2324	13e2a1bcc72fa5a6366d3ce2a21f283ed8bdd50d5f41038c909f0a6b9633337cN.exe
2324	13e2a1bcc72fa5a6366d3ce2a21f283ed8bdd50d5f41038c909f0a6b9633337cN.exe
2324	13e2a1bcc72fa5a6366d3ce2a21f283ed8bdd50d5f41038c909f0a6b9633337cN.exe
2324	13e2a1bcc72fa5a6366d3ce2a21f283ed8bdd50d5f41038c909f0a6b9633337cN.exe
2324	13e2a1bcc72fa5a6366d3ce2a21f283ed8bdd50d5f41038c909f0a6b9633337cN.exe
2324	13e2a1bcc72fa5a6366d3ce2a21f283ed8bdd50d5f41038c909f0a6b9633337cN.exe
2324	13e2a1bcc72fa5a6366d3ce2a21f283ed8bdd50d5f41038c909f0a6b9633337cN.exe
2324	13e2a1bcc72fa5a6366d3ce2a21f283ed8bdd50d5f41038c909f0a6b9633337cN.exe
2324	13e2a1bcc72fa5a6366d3ce2a21f283ed8bdd50d5f41038c909f0a6b9633337cN.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2324	13e2a1bcc72fa5a6366d3ce2a21f283ed8bdd50d5f41038c909f0a6b9633337cN.exe

Suspicious use of WriteProcessMemory 2 IoCs

description	pid	Process	procid_target
PID 2324 wrote to memory of 3168	2324	13e2a1bcc72fa5a6366d3ce2a21f283ed8bdd50d5f41038c909f0a6b9633337cN.exe	90
PID 2324 wrote to memory of 3168	2324	13e2a1bcc72fa5a6366d3ce2a21f283ed8bdd50d5f41038c909f0a6b9633337cN.exe	90

C:\Users\Admin\AppData\Local\Temp\13e2a1bcc72fa5a6366d3ce2a21f283ed8bdd50d5f41038c909f0a6b9633337cN.exe
"C:\Users\Admin\AppData\Local\Temp\13e2a1bcc72fa5a6366d3ce2a21f283ed8bdd50d5f41038c909f0a6b9633337cN.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2324
- C:\Users\Admin\AppData\Local\Temp\Microsoft\MyClient\WindowsUpdate.exe
  "C:\Users\Admin\AppData\Local\Temp\Microsoft\MyClient\WindowsUpdate.exe"
  2⤵
  PID:3168

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

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\Microsoft\MyClient\WindowsUpdate.exe

Filesize
70KB

MD5
d94ef7acefbc20ddea7c5509b4b0bc90

SHA1
f6dd42a0e47980823acedbba7d063b63f17fe8e4

SHA256
13e2a1bcc72fa5a6366d3ce2a21f283ed8bdd50d5f41038c909f0a6b9633337c

SHA512
c8a10a85cdaea99360a45119e803a7059983f9453731eb58174b9409f85b182dbbc6fabab49137bc8946d9f4e3afd1df03853818557656b66760b0832f0f1062

Download Submit
memory/2324-10-0x000000001F2F0000-0x000000001F352000-memory.dmp

Filesize
392KB

Download
memory/2324-0-0x00007FFBF30D5000-0x00007FFBF30D6000-memory.dmp

Filesize
4KB

Download
memory/2324-3-0x000000001BD20000-0x000000001C1EE000-memory.dmp

Filesize
4.8MB

Download
memory/2324-4-0x00007FFBF2E20000-0x00007FFBF37C1000-memory.dmp

Filesize
9.6MB

Download
memory/2324-5-0x000000001C350000-0x000000001C3EC000-memory.dmp

Filesize
624KB

Download
memory/2324-6-0x000000001C1F0000-0x000000001C1F8000-memory.dmp

Filesize
32KB

Download
memory/2324-7-0x000000001C4B0000-0x000000001C4FC000-memory.dmp

Filesize
304KB

Download
memory/2324-11-0x00007FFBF2E20000-0x00007FFBF37C1000-memory.dmp

Filesize
9.6MB

Download
memory/2324-35-0x00007FFBF2E20000-0x00007FFBF37C1000-memory.dmp

Filesize
9.6MB

Download
memory/2324-2-0x00007FFBF2E20000-0x00007FFBF37C1000-memory.dmp

Filesize
9.6MB

Download
memory/2324-8-0x00007FFBF2E20000-0x00007FFBF37C1000-memory.dmp

Filesize
9.6MB

Download
memory/2324-14-0x00007FFBF30D5000-0x00007FFBF30D6000-memory.dmp

Filesize
4KB

Download
memory/2324-15-0x00007FFBF2E20000-0x00007FFBF37C1000-memory.dmp

Filesize
9.6MB

Download
memory/2324-1-0x000000001B790000-0x000000001B836000-memory.dmp

Filesize
664KB

Download
memory/2324-16-0x00007FFBF2E20000-0x00007FFBF37C1000-memory.dmp

Filesize
9.6MB

Download
memory/2324-26-0x00007FFBF2E20000-0x00007FFBF37C1000-memory.dmp

Filesize
9.6MB

Download
memory/2324-27-0x00007FFBF2E20000-0x00007FFBF37C1000-memory.dmp

Filesize
9.6MB

Download
memory/2324-34-0x00007FFBF2E20000-0x00007FFBF37C1000-memory.dmp

Filesize
9.6MB

Download
memory/2324-37-0x00007FFBF2E20000-0x00007FFBF37C1000-memory.dmp

Filesize
9.6MB

Download
memory/2324-9-0x00007FFBF2E20000-0x00007FFBF37C1000-memory.dmp

Filesize
9.6MB

Download
memory/3168-40-0x00007FFBF2E20000-0x00007FFBF37C1000-memory.dmp

Filesize
9.6MB

Download
memory/3168-52-0x00007FFBF2E20000-0x00007FFBF37C1000-memory.dmp

Filesize
9.6MB

Download
memory/3168-32-0x00007FFBF2E20000-0x00007FFBF37C1000-memory.dmp

Filesize
9.6MB

Download
memory/3168-38-0x00007FFBF2E20000-0x00007FFBF37C1000-memory.dmp

Filesize
9.6MB

Download
memory/3168-39-0x00007FFBF2E20000-0x00007FFBF37C1000-memory.dmp

Filesize
9.6MB

Download
memory/3168-31-0x00007FFBF2E20000-0x00007FFBF37C1000-memory.dmp

Filesize
9.6MB

Download
memory/3168-41-0x00007FFBF2E20000-0x00007FFBF37C1000-memory.dmp

Filesize
9.6MB

Download
memory/3168-42-0x00007FFBF2E20000-0x00007FFBF37C1000-memory.dmp

Filesize
9.6MB

Download
memory/3168-43-0x00007FFBF2E20000-0x00007FFBF37C1000-memory.dmp

Filesize
9.6MB

Download
memory/3168-44-0x00007FFBF2E20000-0x00007FFBF37C1000-memory.dmp

Filesize
9.6MB

Download
memory/3168-46-0x00007FFBF2E20000-0x00007FFBF37C1000-memory.dmp

Filesize
9.6MB

Download
memory/3168-45-0x00007FFBF2E20000-0x00007FFBF37C1000-memory.dmp

Filesize
9.6MB

Download
memory/3168-47-0x00007FFBF2E20000-0x00007FFBF37C1000-memory.dmp

Filesize
9.6MB

Download
memory/3168-48-0x00007FFBF2E20000-0x00007FFBF37C1000-memory.dmp

Filesize
9.6MB

Download
memory/3168-49-0x00007FFBF2E20000-0x00007FFBF37C1000-memory.dmp

Filesize
9.6MB

Download
memory/3168-50-0x00007FFBF2E20000-0x00007FFBF37C1000-memory.dmp

Filesize
9.6MB

Download
memory/3168-51-0x00007FFBF2E20000-0x00007FFBF37C1000-memory.dmp

Filesize
9.6MB

Download
memory/3168-33-0x00007FFBF2E20000-0x00007FFBF37C1000-memory.dmp

Filesize
9.6MB

Download
memory/3168-53-0x00007FFBF2E20000-0x00007FFBF37C1000-memory.dmp

Filesize
9.6MB

Download
memory/3168-54-0x00007FFBF2E20000-0x00007FFBF37C1000-memory.dmp

Filesize
9.6MB

Download
memory/3168-55-0x00007FFBF2E20000-0x00007FFBF37C1000-memory.dmp

Filesize
9.6MB

Download
memory/3168-56-0x00007FFBF2E20000-0x00007FFBF37C1000-memory.dmp

Filesize
9.6MB

Download
memory/3168-57-0x00007FFBF2E20000-0x00007FFBF37C1000-memory.dmp

Filesize
9.6MB

Download
memory/3168-58-0x00007FFBF2E20000-0x00007FFBF37C1000-memory.dmp

Filesize
9.6MB

Download
memory/3168-59-0x00007FFBF2E20000-0x00007FFBF37C1000-memory.dmp

Filesize
9.6MB

Download
memory/3168-60-0x00007FFBF2E20000-0x00007FFBF37C1000-memory.dmp

Filesize
9.6MB

Download
memory/3168-61-0x00007FFBF2E20000-0x00007FFBF37C1000-memory.dmp

Filesize
9.6MB

Download
memory/3168-62-0x00007FFBF2E20000-0x00007FFBF37C1000-memory.dmp

Filesize
9.6MB

Download
memory/3168-63-0x00007FFBF2E20000-0x00007FFBF37C1000-memory.dmp

Filesize
9.6MB

Download
memory/3168-64-0x00007FFBF2E20000-0x00007FFBF37C1000-memory.dmp

Filesize
9.6MB

Download
memory/3168-65-0x00007FFBF2E20000-0x00007FFBF37C1000-memory.dmp

Filesize
9.6MB

Download
memory/3168-66-0x00007FFBF2E20000-0x00007FFBF37C1000-memory.dmp

Filesize
9.6MB

Download
memory/3168-67-0x00007FFBF2E20000-0x00007FFBF37C1000-memory.dmp

Filesize
9.6MB

Download