Malware Analysis Report

2024-07-11 07:30

Sample ID 220625-na27yshghm
Target 83c80745049df08a9ce97ede3ce47531f88b5796b30290aa0e31b074c403fc59
SHA256 83c80745049df08a9ce97ede3ce47531f88b5796b30290aa0e31b074c403fc59
Tags
diamondfox botnet infostealer stealer
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK Matrix

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

83c80745049df08a9ce97ede3ce47531f88b5796b30290aa0e31b074c403fc59

Threat Level: Known bad

The file 83c80745049df08a9ce97ede3ce47531f88b5796b30290aa0e31b074c403fc59 was found to be: Known bad.

Malicious Activity Summary

diamondfox botnet infostealer stealer

DiamondFox

DiamondFox payload

Executes dropped EXE

Loads dropped DLL

Suspicious behavior: EnumeratesProcesses

Suspicious use of AdjustPrivilegeToken

Suspicious use of SetWindowsHookEx

Suspicious use of WriteProcessMemory

MITRE ATT&CK Matrix

N/A

Analysis: static1

Detonation Overview

Reported

2022-06-25 11:12

Signatures

N/A

Analysis: behavioral1

Detonation Overview

Submitted

2022-06-25 11:12

Reported

2022-06-25 13:21

Platform

win7-20220414-en

Max time kernel

142s

Max time network

147s

Command Line

"C:\Users\Admin\AppData\Local\Temp\83c80745049df08a9ce97ede3ce47531f88b5796b30290aa0e31b074c403fc59.exe"

Signatures

DiamondFox

botnet stealer diamondfox

DiamondFox payload

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

Executes dropped EXE

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

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe N/A
N/A N/A C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\83c80745049df08a9ce97ede3ce47531f88b5796b30290aa0e31b074c403fc59.exe

"C:\Users\Admin\AppData\Local\Temp\83c80745049df08a9ce97ede3ce47531f88b5796b30290aa0e31b074c403fc59.exe"

C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe

powershell Copy-Item -Path 'C:\Users\Admin\AppData\Local\Temp\83c80745049df08a9ce97ede3ce47531f88b5796b30290aa0e31b074c403fc59.exe' -Destination 'C:\Users\Admin\AppData\Local\rexednIhcraeS\SearchIndexer.exe';Start-Sleep -s 60;Start-Process 'C:\Users\Admin\AppData\Local\rexednIhcraeS\SearchIndexer.exe'

C:\Users\Admin\AppData\Local\rexednIhcraeS\SearchIndexer.exe

"C:\Users\Admin\AppData\Local\rexednIhcraeS\SearchIndexer.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 www.microsoft.com udp
BR 2.16.233.156:80 www.microsoft.com tcp
JP 139.162.104.143:80 tcp

Files

memory/1900-54-0x0000000002ED8000-0x0000000002EE4000-memory.dmp

memory/1900-57-0x0000000000020000-0x0000000000038000-memory.dmp

memory/1900-56-0x0000000002ED8000-0x0000000002EE4000-memory.dmp

memory/1900-59-0x0000000000400000-0x0000000002DE4000-memory.dmp

memory/1900-60-0x0000000002ED8000-0x0000000002EE4000-memory.dmp

memory/1900-61-0x0000000000400000-0x0000000002DE4000-memory.dmp

memory/2044-62-0x0000000000000000-mapping.dmp

memory/2044-63-0x0000000076011000-0x0000000076013000-memory.dmp

memory/2044-64-0x0000000074140000-0x00000000746EB000-memory.dmp

memory/1900-65-0x0000000002ED8000-0x0000000002EE4000-memory.dmp

memory/1900-66-0x0000000000400000-0x0000000002DE4000-memory.dmp

memory/2044-67-0x0000000074140000-0x00000000746EB000-memory.dmp

\Users\Admin\AppData\Local\rexednIhcraeS\SearchIndexer.exe

MD5 98fb3b4baacd9008282ba0e6028ce604
SHA1 beac13ccac2ac620c31dcc5b2882b28df4f444f9
SHA256 83c80745049df08a9ce97ede3ce47531f88b5796b30290aa0e31b074c403fc59
SHA512 c363f38222cc29a75ead651768822c9edf18ae654fbbe3422fbf6a89a237ffc85311f19653b181f2329cbd4ed73be9a7c2a087ce329923a0fb92a359ab192d86

\Users\Admin\AppData\Local\rexednIhcraeS\SearchIndexer.exe

MD5 98fb3b4baacd9008282ba0e6028ce604
SHA1 beac13ccac2ac620c31dcc5b2882b28df4f444f9
SHA256 83c80745049df08a9ce97ede3ce47531f88b5796b30290aa0e31b074c403fc59
SHA512 c363f38222cc29a75ead651768822c9edf18ae654fbbe3422fbf6a89a237ffc85311f19653b181f2329cbd4ed73be9a7c2a087ce329923a0fb92a359ab192d86

memory/888-70-0x0000000000000000-mapping.dmp

C:\Users\Admin\AppData\Local\rexednIhcraeS\SearchIndexer.exe

MD5 98fb3b4baacd9008282ba0e6028ce604
SHA1 beac13ccac2ac620c31dcc5b2882b28df4f444f9
SHA256 83c80745049df08a9ce97ede3ce47531f88b5796b30290aa0e31b074c403fc59
SHA512 c363f38222cc29a75ead651768822c9edf18ae654fbbe3422fbf6a89a237ffc85311f19653b181f2329cbd4ed73be9a7c2a087ce329923a0fb92a359ab192d86

memory/888-72-0x0000000003248000-0x0000000003254000-memory.dmp

memory/2044-75-0x0000000074140000-0x00000000746EB000-memory.dmp

memory/888-76-0x0000000003248000-0x0000000003254000-memory.dmp

memory/888-77-0x0000000000400000-0x0000000002DE4000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2022-06-25 11:12

Reported

2022-06-25 13:22

Platform

win10v2004-20220414-en

Max time kernel

158s

Max time network

182s

Command Line

"C:\Users\Admin\AppData\Local\Temp\83c80745049df08a9ce97ede3ce47531f88b5796b30290aa0e31b074c403fc59.exe"

Signatures

DiamondFox

botnet stealer diamondfox

DiamondFox payload

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

Executes dropped EXE

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

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe N/A
N/A N/A C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\83c80745049df08a9ce97ede3ce47531f88b5796b30290aa0e31b074c403fc59.exe

"C:\Users\Admin\AppData\Local\Temp\83c80745049df08a9ce97ede3ce47531f88b5796b30290aa0e31b074c403fc59.exe"

C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe

powershell Copy-Item -Path 'C:\Users\Admin\AppData\Local\Temp\83c80745049df08a9ce97ede3ce47531f88b5796b30290aa0e31b074c403fc59.exe' -Destination 'C:\Users\Admin\AppData\Local\rexednIhcraeS\SearchIndexer.exe';Start-Sleep -s 60;Start-Process 'C:\Users\Admin\AppData\Local\rexednIhcraeS\SearchIndexer.exe'

C:\Users\Admin\AppData\Local\rexednIhcraeS\SearchIndexer.exe

"C:\Users\Admin\AppData\Local\rexednIhcraeS\SearchIndexer.exe"

Network

Country Destination Domain Proto
NL 104.110.191.133:80 tcp
NL 104.110.191.133:80 tcp
US 52.168.112.66:443 tcp
US 209.197.3.8:80 tcp
US 209.197.3.8:80 tcp
US 8.8.8.8:53 226.101.242.52.in-addr.arpa udp
NL 2.17.222.14:80 tcp
US 8.8.8.8:53 9.9.0.0.0.0.0.0.0.0.0.0.0.0.0.0.3.0.0.0.2.0.0.0.0.2.0.1.3.0.6.2.ip6.arpa udp
US 8.8.8.8:53 www.microsoft.com udp
BR 2.16.233.156:80 www.microsoft.com tcp
JP 139.162.104.143:80 tcp

Files

memory/4740-132-0x0000000002E42000-0x0000000002E4E000-memory.dmp

memory/4740-133-0x00000000001C0000-0x00000000001D8000-memory.dmp

memory/4740-134-0x0000000000400000-0x0000000002DE4000-memory.dmp

memory/4648-135-0x0000000000000000-mapping.dmp

memory/4648-136-0x0000000005060000-0x0000000005096000-memory.dmp

memory/4648-137-0x0000000005780000-0x0000000005DA8000-memory.dmp

memory/4648-138-0x0000000005730000-0x0000000005752000-memory.dmp

memory/4648-139-0x0000000005E20000-0x0000000005E86000-memory.dmp

memory/4648-140-0x0000000005FC0000-0x0000000006026000-memory.dmp

memory/4648-141-0x0000000006600000-0x000000000661E000-memory.dmp

memory/4648-142-0x0000000007780000-0x0000000007816000-memory.dmp

memory/4648-143-0x0000000006AF0000-0x0000000006B0A000-memory.dmp

memory/4648-144-0x0000000006B40000-0x0000000006B62000-memory.dmp

memory/4648-145-0x0000000007DD0000-0x0000000008374000-memory.dmp

memory/4648-146-0x0000000008A00000-0x000000000907A000-memory.dmp

memory/5052-147-0x0000000000000000-mapping.dmp

C:\Users\Admin\AppData\Local\rexednIhcraeS\SearchIndexer.exe

MD5 98fb3b4baacd9008282ba0e6028ce604
SHA1 beac13ccac2ac620c31dcc5b2882b28df4f444f9
SHA256 83c80745049df08a9ce97ede3ce47531f88b5796b30290aa0e31b074c403fc59
SHA512 c363f38222cc29a75ead651768822c9edf18ae654fbbe3422fbf6a89a237ffc85311f19653b181f2329cbd4ed73be9a7c2a087ce329923a0fb92a359ab192d86

C:\Users\Admin\AppData\Local\rexednIhcraeS\SearchIndexer.exe

MD5 98fb3b4baacd9008282ba0e6028ce604
SHA1 beac13ccac2ac620c31dcc5b2882b28df4f444f9
SHA256 83c80745049df08a9ce97ede3ce47531f88b5796b30290aa0e31b074c403fc59
SHA512 c363f38222cc29a75ead651768822c9edf18ae654fbbe3422fbf6a89a237ffc85311f19653b181f2329cbd4ed73be9a7c2a087ce329923a0fb92a359ab192d86

memory/5052-152-0x0000000002FA3000-0x0000000002FAF000-memory.dmp

memory/5052-153-0x0000000000400000-0x0000000002DE4000-memory.dmp