Malware Analysis Report

2024-11-30 23:21

Sample ID 220413-bq9whsdgh2
Target b33d569af5e490875d6473c6402797ddb4ce639bb1f1cf7f67698eeafa625f09.exe
SHA256 b33d569af5e490875d6473c6402797ddb4ce639bb1f1cf7f67698eeafa625f09
Tags
hacked blacknet persistence trojan
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Enterprise Matrix V6

Analysis: static1

Detonation Overview

Signatures

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral2

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

b33d569af5e490875d6473c6402797ddb4ce639bb1f1cf7f67698eeafa625f09

Threat Level: Known bad

The file b33d569af5e490875d6473c6402797ddb4ce639bb1f1cf7f67698eeafa625f09.exe was found to be: Known bad.

Malicious Activity Summary

hacked blacknet persistence trojan

BlackNET Payload

BlackNET

Blacknet family

Contains code to disable Windows Defender

Adds Run key to start application

Suspicious behavior: EnumeratesProcesses

Suspicious use of WriteProcessMemory

Suspicious use of SetWindowsHookEx

Suspicious use of AdjustPrivilegeToken

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2022-04-13 01:22

Signatures

BlackNET Payload

Description Indicator Process Target
N/A N/A N/A N/A

Blacknet family

blacknet

Contains code to disable Windows Defender

Description Indicator Process Target
N/A N/A N/A N/A

Analysis: behavioral1

Detonation Overview

Submitted

2022-04-13 01:22

Reported

2022-04-13 01:31

Platform

win7-20220310-en

Max time kernel

4294135s

Max time network

173s

Command Line

"C:\Users\Admin\AppData\Local\Temp\b33d569af5e490875d6473c6402797ddb4ce639bb1f1cf7f67698eeafa625f09.exe"

Signatures

BlackNET

trojan blacknet

BlackNET Payload

Description Indicator Process Target
N/A N/A N/A N/A
N/A N/A N/A N/A

Contains code to disable Windows Defender

Description Indicator Process Target
N/A N/A N/A N/A
N/A N/A N/A N/A

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\USER\S-1-5-21-2932610838-281738825-1127631353-1000\Software\Microsoft\Windows\CurrentVersion\Run\df7427b5e05183e625345c3c37ef31c0 = "C:\\Users\\Admin\\AppData\\Local\\Temp\\b33d569af5e490875d6473c6402797ddb4ce639bb1f1cf7f67698eeafa625f09.exe" C:\Users\Admin\AppData\Local\Temp\b33d569af5e490875d6473c6402797ddb4ce639bb1f1cf7f67698eeafa625f09.exe N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\b33d569af5e490875d6473c6402797ddb4ce639bb1f1cf7f67698eeafa625f09.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\b33d569af5e490875d6473c6402797ddb4ce639bb1f1cf7f67698eeafa625f09.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\b33d569af5e490875d6473c6402797ddb4ce639bb1f1cf7f67698eeafa625f09.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\b33d569af5e490875d6473c6402797ddb4ce639bb1f1cf7f67698eeafa625f09.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\b33d569af5e490875d6473c6402797ddb4ce639bb1f1cf7f67698eeafa625f09.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\b33d569af5e490875d6473c6402797ddb4ce639bb1f1cf7f67698eeafa625f09.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\b33d569af5e490875d6473c6402797ddb4ce639bb1f1cf7f67698eeafa625f09.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\b33d569af5e490875d6473c6402797ddb4ce639bb1f1cf7f67698eeafa625f09.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\b33d569af5e490875d6473c6402797ddb4ce639bb1f1cf7f67698eeafa625f09.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\b33d569af5e490875d6473c6402797ddb4ce639bb1f1cf7f67698eeafa625f09.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\b33d569af5e490875d6473c6402797ddb4ce639bb1f1cf7f67698eeafa625f09.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\b33d569af5e490875d6473c6402797ddb4ce639bb1f1cf7f67698eeafa625f09.exe N/A
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N/A N/A C:\Users\Admin\AppData\Local\Temp\b33d569af5e490875d6473c6402797ddb4ce639bb1f1cf7f67698eeafa625f09.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\b33d569af5e490875d6473c6402797ddb4ce639bb1f1cf7f67698eeafa625f09.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\b33d569af5e490875d6473c6402797ddb4ce639bb1f1cf7f67698eeafa625f09.exe N/A
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N/A N/A C:\Users\Admin\AppData\Local\Temp\b33d569af5e490875d6473c6402797ddb4ce639bb1f1cf7f67698eeafa625f09.exe N/A
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N/A N/A C:\Users\Admin\AppData\Local\Temp\b33d569af5e490875d6473c6402797ddb4ce639bb1f1cf7f67698eeafa625f09.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\b33d569af5e490875d6473c6402797ddb4ce639bb1f1cf7f67698eeafa625f09.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\b33d569af5e490875d6473c6402797ddb4ce639bb1f1cf7f67698eeafa625f09.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\b33d569af5e490875d6473c6402797ddb4ce639bb1f1cf7f67698eeafa625f09.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\b33d569af5e490875d6473c6402797ddb4ce639bb1f1cf7f67698eeafa625f09.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\b33d569af5e490875d6473c6402797ddb4ce639bb1f1cf7f67698eeafa625f09.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\b33d569af5e490875d6473c6402797ddb4ce639bb1f1cf7f67698eeafa625f09.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\b33d569af5e490875d6473c6402797ddb4ce639bb1f1cf7f67698eeafa625f09.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\b33d569af5e490875d6473c6402797ddb4ce639bb1f1cf7f67698eeafa625f09.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\b33d569af5e490875d6473c6402797ddb4ce639bb1f1cf7f67698eeafa625f09.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\b33d569af5e490875d6473c6402797ddb4ce639bb1f1cf7f67698eeafa625f09.exe

"C:\Users\Admin\AppData\Local\Temp\b33d569af5e490875d6473c6402797ddb4ce639bb1f1cf7f67698eeafa625f09.exe"

C:\Users\Admin\AppData\Roaming\Microsoft\MyClient\WindowsUpdate.exe

"C:\Users\Admin\AppData\Roaming\Microsoft\MyClient\WindowsUpdate.exe"

C:\Users\Admin\AppData\Roaming\Microsoft\MyClient\svchosts.exe

"C:\Users\Admin\AppData\Roaming\Microsoft\MyClient\svchosts.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 finalb.xyz udp

Files

memory/1936-54-0x0000000001E30000-0x0000000001E32000-memory.dmp

memory/1936-55-0x000007FEED570000-0x000007FEEE606000-memory.dmp

memory/1936-56-0x0000000001E36000-0x0000000001E55000-memory.dmp

memory/1936-57-0x0000000001E6C000-0x0000000001E6E000-memory.dmp

memory/1936-59-0x0000000001E81000-0x0000000001E84000-memory.dmp

memory/1936-58-0x0000000001E71000-0x0000000001E74000-memory.dmp

memory/1936-60-0x0000000001E8D000-0x0000000001E90000-memory.dmp

memory/1936-61-0x0000000001E82000-0x0000000001E84000-memory.dmp

memory/1936-62-0x0000000001E8D000-0x0000000001E90000-memory.dmp

memory/1936-63-0x0000000001E5B000-0x0000000001E6F000-memory.dmp

memory/1936-65-0x0000000001E71000-0x0000000001E73000-memory.dmp

memory/1936-64-0x0000000001E6E000-0x0000000001E70000-memory.dmp

memory/1936-66-0x0000000001E73000-0x0000000001E75000-memory.dmp

memory/1936-67-0x0000000001E81000-0x0000000001E84000-memory.dmp

memory/1936-68-0x0000000001E81000-0x0000000001E84000-memory.dmp

memory/1936-69-0x0000000001E5B000-0x0000000001E6F000-memory.dmp

memory/1936-70-0x0000000001E71000-0x0000000001E74000-memory.dmp

memory/1936-71-0x0000000001E5B000-0x0000000001E6F000-memory.dmp

memory/1936-72-0x0000000001E75000-0x0000000001E77000-memory.dmp

memory/1936-73-0x0000000001E77000-0x0000000001E79000-memory.dmp

memory/1936-74-0x0000000001E8D000-0x0000000001E90000-memory.dmp

memory/1936-75-0x0000000001E79000-0x0000000001E7B000-memory.dmp

memory/1936-76-0x0000000001E7B000-0x0000000001E7D000-memory.dmp

memory/1936-77-0x0000000001E5E000-0x0000000001E66000-memory.dmp

memory/1936-78-0x0000000001E7D000-0x0000000001E81000-memory.dmp

memory/1936-79-0x0000000001E81000-0x0000000001E85000-memory.dmp

memory/1936-80-0x0000000001E85000-0x0000000001E89000-memory.dmp

memory/1936-81-0x0000000001E89000-0x0000000001E8D000-memory.dmp

memory/1936-82-0x0000000001E8D000-0x0000000001E91000-memory.dmp

memory/1936-83-0x0000000001E77000-0x0000000001E7A000-memory.dmp

memory/1748-84-0x0000000000000000-mapping.dmp

C:\Users\Admin\AppData\Roaming\Microsoft\MyClient\WindowsUpdate.exe

MD5 c4f79edc4498c5570495bb36fc942134
SHA1 00046b588252502480e8e708a22d25ae1d9b05fa
SHA256 b33d569af5e490875d6473c6402797ddb4ce639bb1f1cf7f67698eeafa625f09
SHA512 07bdeb39b35835a752886c2d308a68d263b36e8372d2bf320ede5b85252d14e284985d0889dfa9fcffec7ede7c3585a46cb0165b00be903755ffe63cacb21cef

C:\Users\Admin\AppData\Roaming\Microsoft\MyClient\WindowsUpdate.exe

MD5 c4f79edc4498c5570495bb36fc942134
SHA1 00046b588252502480e8e708a22d25ae1d9b05fa
SHA256 b33d569af5e490875d6473c6402797ddb4ce639bb1f1cf7f67698eeafa625f09
SHA512 07bdeb39b35835a752886c2d308a68d263b36e8372d2bf320ede5b85252d14e284985d0889dfa9fcffec7ede7c3585a46cb0165b00be903755ffe63cacb21cef

memory/1748-87-0x000007FEED570000-0x000007FEEE606000-memory.dmp

memory/1748-88-0x0000000000A90000-0x0000000000A92000-memory.dmp

memory/1748-89-0x0000000000A96000-0x0000000000AB5000-memory.dmp

memory/1748-100-0x0000000000AC9000-0x0000000000ACF000-memory.dmp

memory/1748-99-0x0000000000AD7000-0x0000000000ADA000-memory.dmp

memory/1748-98-0x0000000000AD1000-0x0000000000AD4000-memory.dmp

memory/1748-97-0x0000000000AE1000-0x0000000000AE5000-memory.dmp

memory/1748-96-0x0000000000ADD000-0x0000000000AE1000-memory.dmp

memory/1748-95-0x0000000000ADB000-0x0000000000ADD000-memory.dmp

memory/1748-94-0x0000000000AD5000-0x0000000000AD7000-memory.dmp

memory/1748-93-0x0000000000AD3000-0x0000000000AD5000-memory.dmp

memory/1748-92-0x0000000000AD1000-0x0000000000AD3000-memory.dmp

memory/1748-91-0x0000000000ACE000-0x0000000000AD0000-memory.dmp

memory/1748-90-0x0000000000ACC000-0x0000000000ACE000-memory.dmp

memory/1748-101-0x0000000000AC0000-0x0000000000AC6000-memory.dmp

memory/1748-102-0x0000000000AD7000-0x0000000000ADA000-memory.dmp

memory/2016-103-0x0000000000000000-mapping.dmp

C:\Users\Admin\AppData\Roaming\Microsoft\MyClient\svchosts.exe

MD5 89dd6e72358a669b7d6e2348307a7af7
SHA1 0db348f3c6114a45d71f4d218e0e088b71c7bb0a
SHA256 ad34794058212006ae974fcc6a0242598e6d020f08044439e3512773cd402b7e
SHA512 93b8a47686d7491281a0809b138a6244a535302ba0d6b2146849e9888632c72b6223ae8eb7a24f1006aaf57ab947a8f43719cff4837df559e7bf42f52c63856b

C:\Users\Admin\AppData\Roaming\Microsoft\MyClient\svchosts.exe

MD5 89dd6e72358a669b7d6e2348307a7af7
SHA1 0db348f3c6114a45d71f4d218e0e088b71c7bb0a
SHA256 ad34794058212006ae974fcc6a0242598e6d020f08044439e3512773cd402b7e
SHA512 93b8a47686d7491281a0809b138a6244a535302ba0d6b2146849e9888632c72b6223ae8eb7a24f1006aaf57ab947a8f43719cff4837df559e7bf42f52c63856b

memory/2016-107-0x0000000001E60000-0x0000000001E62000-memory.dmp

memory/2016-106-0x000007FEED570000-0x000007FEEE606000-memory.dmp

memory/2016-108-0x0000000001E66000-0x0000000001E85000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2022-04-13 01:22

Reported

2022-04-13 01:31

Platform

win10v2004-20220310-en

Max time kernel

127s

Max time network

174s

Command Line

"C:\Users\Admin\AppData\Local\Temp\b33d569af5e490875d6473c6402797ddb4ce639bb1f1cf7f67698eeafa625f09.exe"

Signatures

Processes

C:\Users\Admin\AppData\Local\Temp\b33d569af5e490875d6473c6402797ddb4ce639bb1f1cf7f67698eeafa625f09.exe

"C:\Users\Admin\AppData\Local\Temp\b33d569af5e490875d6473c6402797ddb4ce639bb1f1cf7f67698eeafa625f09.exe"

C:\Windows\system32\fondue.exe

"C:\Windows\system32\fondue.exe" /enable-feature:NetFx3 /caller-name:mscoreei.dll

Network

Country Destination Domain Proto
US 93.184.221.240:80 tcp
US 93.184.221.240:80 tcp
US 93.184.220.29:80 tcp
US 20.189.173.5:443 tcp

Files

memory/3380-134-0x0000000000000000-mapping.dmp