blacknet | 3306408888aafd826db9c4cdf7d2aeb587b8a667cc24115e93621f2cb9872c12

General

Target

3306408888aafd826db9c4cdf7d2aeb587b8a667cc24115e93621f2cb9872c12.exe
Size

70KB
MD5

1233eb5bada76ccd62168d01e03f95de
SHA1

0bf38b1d8c1408362317e8c30ac8eb77b2360e0e
SHA256

3306408888aafd826db9c4cdf7d2aeb587b8a667cc24115e93621f2cb9872c12
SHA512

bc63aed77f7b37389f5ee7652491fe9e24a2e50a04dc3d0c314905b32f301b88d1d2160c70658bd30a5e4d02451f637e2e4ad7b96d54b36f05efadf2e5768f30
SSDEEP

1536:gFTnqpKxynVcGeifCSzTPb542HkLbvJfxa:gFTlGeifrvb59H+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

Processes:

resource	yara_rule
behavioral2/files/0x000b000000023af0-18.dat	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.

Processes:

resource	yara_rule
behavioral2/files/0x000b000000023af0-18.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

Processes:

3306408888aafd826db9c4cdf7d2aeb587b8a667cc24115e93621f2cb9872c12.exe

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\Control Panel\International\Geo\Nation	3306408888aafd826db9c4cdf7d2aeb587b8a667cc24115e93621f2cb9872c12.exe

Executes dropped EXE 1 IoCs

Processes:

WindowsUpdate.exe

pid	Process
1404	WindowsUpdate.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

3306408888aafd826db9c4cdf7d2aeb587b8a667cc24115e93621f2cb9872c12.exe

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\2965b7eabf9eb6ce83de7d2260ab71ba = "C:\\Users\\Admin\\AppData\\Local\\Temp\\3306408888aafd826db9c4cdf7d2aeb587b8a667cc24115e93621f2cb9872c12.exe"	3306408888aafd826db9c4cdf7d2aeb587b8a667cc24115e93621f2cb9872c12.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\2965b7eabf9eb6ce83de7d2260ab71ba = "C:\\Users\\Admin\\AppData\\Local\\Temp\\Microsoft\\MyClient\\WindowsUpdate.exe"	3306408888aafd826db9c4cdf7d2aeb587b8a667cc24115e93621f2cb9872c12.exe

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

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 28 IoCs

Processes:

3306408888aafd826db9c4cdf7d2aeb587b8a667cc24115e93621f2cb9872c12.exe

pid	Process
8	3306408888aafd826db9c4cdf7d2aeb587b8a667cc24115e93621f2cb9872c12.exe
8	3306408888aafd826db9c4cdf7d2aeb587b8a667cc24115e93621f2cb9872c12.exe
8	3306408888aafd826db9c4cdf7d2aeb587b8a667cc24115e93621f2cb9872c12.exe
8	3306408888aafd826db9c4cdf7d2aeb587b8a667cc24115e93621f2cb9872c12.exe
8	3306408888aafd826db9c4cdf7d2aeb587b8a667cc24115e93621f2cb9872c12.exe
8	3306408888aafd826db9c4cdf7d2aeb587b8a667cc24115e93621f2cb9872c12.exe
8	3306408888aafd826db9c4cdf7d2aeb587b8a667cc24115e93621f2cb9872c12.exe
8	3306408888aafd826db9c4cdf7d2aeb587b8a667cc24115e93621f2cb9872c12.exe
8	3306408888aafd826db9c4cdf7d2aeb587b8a667cc24115e93621f2cb9872c12.exe
8	3306408888aafd826db9c4cdf7d2aeb587b8a667cc24115e93621f2cb9872c12.exe
8	3306408888aafd826db9c4cdf7d2aeb587b8a667cc24115e93621f2cb9872c12.exe
8	3306408888aafd826db9c4cdf7d2aeb587b8a667cc24115e93621f2cb9872c12.exe
8	3306408888aafd826db9c4cdf7d2aeb587b8a667cc24115e93621f2cb9872c12.exe
8	3306408888aafd826db9c4cdf7d2aeb587b8a667cc24115e93621f2cb9872c12.exe
8	3306408888aafd826db9c4cdf7d2aeb587b8a667cc24115e93621f2cb9872c12.exe
8	3306408888aafd826db9c4cdf7d2aeb587b8a667cc24115e93621f2cb9872c12.exe
8	3306408888aafd826db9c4cdf7d2aeb587b8a667cc24115e93621f2cb9872c12.exe
8	3306408888aafd826db9c4cdf7d2aeb587b8a667cc24115e93621f2cb9872c12.exe
8	3306408888aafd826db9c4cdf7d2aeb587b8a667cc24115e93621f2cb9872c12.exe
8	3306408888aafd826db9c4cdf7d2aeb587b8a667cc24115e93621f2cb9872c12.exe
8	3306408888aafd826db9c4cdf7d2aeb587b8a667cc24115e93621f2cb9872c12.exe
8	3306408888aafd826db9c4cdf7d2aeb587b8a667cc24115e93621f2cb9872c12.exe
8	3306408888aafd826db9c4cdf7d2aeb587b8a667cc24115e93621f2cb9872c12.exe
8	3306408888aafd826db9c4cdf7d2aeb587b8a667cc24115e93621f2cb9872c12.exe
8	3306408888aafd826db9c4cdf7d2aeb587b8a667cc24115e93621f2cb9872c12.exe
8	3306408888aafd826db9c4cdf7d2aeb587b8a667cc24115e93621f2cb9872c12.exe
8	3306408888aafd826db9c4cdf7d2aeb587b8a667cc24115e93621f2cb9872c12.exe
8	3306408888aafd826db9c4cdf7d2aeb587b8a667cc24115e93621f2cb9872c12.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

3306408888aafd826db9c4cdf7d2aeb587b8a667cc24115e93621f2cb9872c12.exe

description	pid	Process
Token: SeDebugPrivilege	8	3306408888aafd826db9c4cdf7d2aeb587b8a667cc24115e93621f2cb9872c12.exe

Suspicious use of WriteProcessMemory 2 IoCs

Processes:

3306408888aafd826db9c4cdf7d2aeb587b8a667cc24115e93621f2cb9872c12.exe

description	pid	Process	procid_target
PID 8 wrote to memory of 1404	8	3306408888aafd826db9c4cdf7d2aeb587b8a667cc24115e93621f2cb9872c12.exe	92
PID 8 wrote to memory of 1404	8	3306408888aafd826db9c4cdf7d2aeb587b8a667cc24115e93621f2cb9872c12.exe	92

C:\Users\Admin\AppData\Local\Temp\3306408888aafd826db9c4cdf7d2aeb587b8a667cc24115e93621f2cb9872c12.exe
"C:\Users\Admin\AppData\Local\Temp\3306408888aafd826db9c4cdf7d2aeb587b8a667cc24115e93621f2cb9872c12.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:8
- C:\Users\Admin\AppData\Local\Temp\Microsoft\MyClient\WindowsUpdate.exe
  "C:\Users\Admin\AppData\Local\Temp\Microsoft\MyClient\WindowsUpdate.exe"
  2⤵
  - Executes dropped EXE
  PID:1404

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

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
1233eb5bada76ccd62168d01e03f95de

SHA1
0bf38b1d8c1408362317e8c30ac8eb77b2360e0e

SHA256
3306408888aafd826db9c4cdf7d2aeb587b8a667cc24115e93621f2cb9872c12

SHA512
bc63aed77f7b37389f5ee7652491fe9e24a2e50a04dc3d0c314905b32f301b88d1d2160c70658bd30a5e4d02451f637e2e4ad7b96d54b36f05efadf2e5768f30

Download Submit
memory/8-28-0x00007FFEC6515000-0x00007FFEC6516000-memory.dmp

Filesize
4KB

Download
memory/8-2-0x00007FFEC6260000-0x00007FFEC6C01000-memory.dmp

Filesize
9.6MB

Download
memory/8-3-0x000000001BAE0000-0x000000001BFAE000-memory.dmp

Filesize
4.8MB

Download
memory/8-4-0x000000001C110000-0x000000001C1AC000-memory.dmp

Filesize
624KB

Download
memory/8-39-0x00007FFEC6260000-0x00007FFEC6C01000-memory.dmp

Filesize
9.6MB

Download
memory/8-6-0x000000001C270000-0x000000001C2BC000-memory.dmp

Filesize
304KB

Download
memory/8-7-0x00007FFEC6260000-0x00007FFEC6C01000-memory.dmp

Filesize
9.6MB

Download
memory/8-38-0x00007FFEC6260000-0x00007FFEC6C01000-memory.dmp

Filesize
9.6MB

Download
memory/8-9-0x00007FFEC6260000-0x00007FFEC6C01000-memory.dmp

Filesize
9.6MB

Download
memory/8-36-0x00007FFEC6260000-0x00007FFEC6C01000-memory.dmp

Filesize
9.6MB

Download
memory/8-13-0x00007FFEC6260000-0x00007FFEC6C01000-memory.dmp

Filesize
9.6MB

Download
memory/8-14-0x00007FFEC6260000-0x00007FFEC6C01000-memory.dmp

Filesize
9.6MB

Download
memory/8-15-0x00007FFEC6260000-0x00007FFEC6C01000-memory.dmp

Filesize
9.6MB

Download
memory/8-1-0x000000001B550000-0x000000001B5F6000-memory.dmp

Filesize
664KB

Download
memory/8-29-0x00007FFEC6260000-0x00007FFEC6C01000-memory.dmp

Filesize
9.6MB

Download
memory/8-0-0x00007FFEC6515000-0x00007FFEC6516000-memory.dmp

Filesize
4KB

Download
memory/8-5-0x000000001BFB0000-0x000000001BFB8000-memory.dmp

Filesize
32KB

Download
memory/8-8-0x00007FFEC6260000-0x00007FFEC6C01000-memory.dmp

Filesize
9.6MB

Download
memory/8-10-0x000000001CD30000-0x000000001CD92000-memory.dmp

Filesize
392KB

Download
memory/8-33-0x00007FFEC6260000-0x00007FFEC6C01000-memory.dmp

Filesize
9.6MB

Download
memory/1404-32-0x00007FFEC6260000-0x00007FFEC6C01000-memory.dmp

Filesize
9.6MB

Download
memory/1404-34-0x00007FFEC6260000-0x00007FFEC6C01000-memory.dmp

Filesize
9.6MB

Download
memory/1404-37-0x00007FFEC6260000-0x00007FFEC6C01000-memory.dmp

Filesize
9.6MB

Download
memory/1404-31-0x00007FFEC6260000-0x00007FFEC6C01000-memory.dmp

Filesize
9.6MB

Download
memory/1404-30-0x00007FFEC6260000-0x00007FFEC6C01000-memory.dmp

Filesize
9.6MB

Download
memory/1404-40-0x00007FFEC6260000-0x00007FFEC6C01000-memory.dmp

Filesize
9.6MB

Download
memory/1404-41-0x00007FFEC6260000-0x00007FFEC6C01000-memory.dmp

Filesize
9.6MB

Download
memory/1404-42-0x00007FFEC6260000-0x00007FFEC6C01000-memory.dmp

Filesize
9.6MB

Download
memory/1404-43-0x00007FFEC6260000-0x00007FFEC6C01000-memory.dmp

Filesize
9.6MB

Download
memory/1404-44-0x00007FFEC6260000-0x00007FFEC6C01000-memory.dmp

Filesize
9.6MB

Download
memory/1404-45-0x00007FFEC6260000-0x00007FFEC6C01000-memory.dmp

Filesize
9.6MB

Download
memory/1404-46-0x00007FFEC6260000-0x00007FFEC6C01000-memory.dmp

Filesize
9.6MB

Download
memory/1404-47-0x00007FFEC6260000-0x00007FFEC6C01000-memory.dmp

Filesize
9.6MB

Download
memory/1404-48-0x00007FFEC6260000-0x00007FFEC6C01000-memory.dmp

Filesize
9.6MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads