Malware Analysis Report

2025-01-02 07:21

Sample ID 240916-srz65svdpm
Target 2024-09-16_163197198eea18070d76eb4a5d06494b_floxif_magniber
SHA256 a61c854176f852e2391ce87ff9e3d61a9fdf8e5400397d3131fb27d750e61e5d
Tags
floxif backdoor discovery trojan upx persistence privilege_escalation
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Enterprise Matrix V15

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

a61c854176f852e2391ce87ff9e3d61a9fdf8e5400397d3131fb27d750e61e5d

Threat Level: Known bad

The file 2024-09-16_163197198eea18070d76eb4a5d06494b_floxif_magniber was found to be: Known bad.

Malicious Activity Summary

floxif backdoor discovery trojan upx persistence privilege_escalation

Floxif, Floodfix

Detects Floxif payload

Event Triggered Execution: AppInit DLLs

Checks BIOS information in registry

UPX packed file

Loads dropped DLL

ACProtect 1.3x - 1.4x DLL software

Enumerates connected drives

Drops file in Program Files directory

System Location Discovery: System Language Discovery

Program crash

Unsigned PE

Suspicious use of WriteProcessMemory

Suspicious use of AdjustPrivilegeToken

Suspicious behavior: EnumeratesProcesses

Modifies registry class

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-09-16 15:22

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-09-16 15:22

Reported

2024-09-16 15:24

Platform

win7-20240729-en

Max time kernel

93s

Max time network

16s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2024-09-16_163197198eea18070d76eb4a5d06494b_floxif_magniber.exe"

Signatures

Floxif, Floodfix

backdoor trojan floxif

Detects Floxif payload

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

ACProtect 1.3x - 1.4x DLL software

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

Checks BIOS information in registry

Description Indicator Process Target
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosDate C:\Users\Admin\AppData\Local\Temp\2024-09-16_163197198eea18070d76eb4a5d06494b_floxif_magniber.exe N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion C:\Users\Admin\AppData\Local\Temp\2024-09-16_163197198eea18070d76eb4a5d06494b_floxif_magniber.exe N/A

UPX packed file

upx
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
N/A N/A N/A N/A
N/A N/A N/A N/A

Enumerates connected drives

Description Indicator Process Target
File opened (read-only) \??\e: C:\Users\Admin\AppData\Local\Temp\2024-09-16_163197198eea18070d76eb4a5d06494b_floxif_magniber.exe N/A

Drops file in Program Files directory

Description Indicator Process Target
File created C:\Program Files\Common Files\System\symsrv.dll C:\Users\Admin\AppData\Local\Temp\2024-09-16_163197198eea18070d76eb4a5d06494b_floxif_magniber.exe N/A
File created \??\c:\program files\common files\system\symsrv.dll.000 C:\Users\Admin\AppData\Local\Temp\2024-09-16_163197198eea18070d76eb4a5d06494b_floxif_magniber.exe N/A

System Location Discovery: System Language Discovery

discovery
Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\2024-09-16_163197198eea18070d76eb4a5d06494b_floxif_magniber.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\2024-09-16_163197198eea18070d76eb4a5d06494b_floxif_magniber.exe N/A

Modifies registry class

Description Indicator Process Target
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{F404ECE4-0F0D-51C0-E1A8-25212FD86B6E} C:\Users\Admin\AppData\Local\Temp\2024-09-16_163197198eea18070d76eb4a5d06494b_floxif_magniber.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{F404ECE4-0F0D-51C0-E1A8-25212FD86B6E}\ = "CLSID_PathCompleteProvider" C:\Users\Admin\AppData\Local\Temp\2024-09-16_163197198eea18070d76eb4a5d06494b_floxif_magniber.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{F404ECE4-0F0D-51C0-E1A8-25212FD86B6E}\InProcServer32 C:\Users\Admin\AppData\Local\Temp\2024-09-16_163197198eea18070d76eb4a5d06494b_floxif_magniber.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{F404ECE4-0F0D-51C0-E1A8-25212FD86B6E}\InProcServer32\ = "%SystemRoot%\\SysWow64\\SearchFolder.dll" C:\Users\Admin\AppData\Local\Temp\2024-09-16_163197198eea18070d76eb4a5d06494b_floxif_magniber.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{F404ECE4-0F0D-51C0-E1A8-25212FD86B6E}\InProcServer32\ThreadingModel = "Both" C:\Users\Admin\AppData\Local\Temp\2024-09-16_163197198eea18070d76eb4a5d06494b_floxif_magniber.exe N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\2024-09-16_163197198eea18070d76eb4a5d06494b_floxif_magniber.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\2024-09-16_163197198eea18070d76eb4a5d06494b_floxif_magniber.exe

"C:\Users\Admin\AppData\Local\Temp\2024-09-16_163197198eea18070d76eb4a5d06494b_floxif_magniber.exe"

C:\Users\Admin\AppData\Local\Temp\2024-09-16_163197198eea18070d76eb4a5d06494b_floxif_magniber.exe

"C:\Users\Admin\AppData\Local\Temp\2024-09-16_163197198eea18070d76eb4a5d06494b_floxif_magniber.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 5isohu.com udp
US 8.8.8.8:53 www.aieov.com udp
US 96.126.123.244:80 www.aieov.com tcp
US 96.126.123.244:80 www.aieov.com tcp

Files

\Program Files\Common Files\System\symsrv.dll

MD5 7574cf2c64f35161ab1292e2f532aabf
SHA1 14ba3fa927a06224dfe587014299e834def4644f
SHA256 de055a89de246e629a8694bde18af2b1605e4b9b493c7e4aef669dd67acf5085
SHA512 4db19f2d8d5bc1c7bbb812d3fa9c43b80fa22140b346d2760f090b73aed8a5177edb4bddc647a6ebd5a2db8565be5a1a36a602b0d759e38540d9a584ba5896ab

memory/376-4-0x0000000000400000-0x0000000000FE5000-memory.dmp

memory/376-5-0x0000000010000000-0x0000000010030000-memory.dmp

memory/376-6-0x00000000039B0000-0x0000000004595000-memory.dmp

memory/2452-7-0x0000000000400000-0x0000000000FE5000-memory.dmp

memory/2452-10-0x0000000010000000-0x0000000010030000-memory.dmp

memory/2452-11-0x0000000003B70000-0x0000000003CAC000-memory.dmp

memory/2452-17-0x0000000003B70000-0x0000000003CAC000-memory.dmp

memory/2452-21-0x0000000000400000-0x0000000000FE5000-memory.dmp

memory/2452-25-0x0000000000400000-0x0000000000FE5000-memory.dmp

memory/2452-23-0x0000000000400000-0x0000000000FE5000-memory.dmp

memory/2452-22-0x0000000000400000-0x0000000000FE5000-memory.dmp

memory/2452-26-0x0000000000400000-0x0000000000FE5000-memory.dmp

memory/2452-29-0x0000000000400000-0x0000000000FE5000-memory.dmp

memory/2452-28-0x0000000000400000-0x0000000000FE5000-memory.dmp

memory/2452-30-0x0000000003B70000-0x0000000003CAC000-memory.dmp

memory/2452-32-0x0000000003B70000-0x0000000003CAC000-memory.dmp

memory/376-35-0x0000000010000000-0x0000000010030000-memory.dmp

memory/376-37-0x0000000010000000-0x0000000010030000-memory.dmp

memory/2452-40-0x0000000010000000-0x0000000010030000-memory.dmp

memory/376-36-0x0000000000400000-0x0000000000FE5000-memory.dmp

memory/2452-38-0x0000000000400000-0x0000000000FE5000-memory.dmp

memory/2452-41-0x0000000003B70000-0x0000000003CAC000-memory.dmp

memory/376-46-0x0000000010000000-0x0000000010030000-memory.dmp

memory/376-47-0x0000000000400000-0x0000000000FE5000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-09-16 15:22

Reported

2024-09-16 15:24

Platform

win10v2004-20240802-en

Max time kernel

125s

Max time network

127s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2024-09-16_163197198eea18070d76eb4a5d06494b_floxif_magniber.exe"

Signatures

Floxif, Floodfix

backdoor trojan floxif

Detects Floxif payload

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

Event Triggered Execution: AppInit DLLs

persistence privilege_escalation

ACProtect 1.3x - 1.4x DLL software

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

Checks BIOS information in registry

Description Indicator Process Target
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion C:\Users\Admin\AppData\Local\Temp\2024-09-16_163197198eea18070d76eb4a5d06494b_floxif_magniber.exe N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosDate C:\Users\Admin\AppData\Local\Temp\2024-09-16_163197198eea18070d76eb4a5d06494b_floxif_magniber.exe N/A

UPX packed file

upx
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
N/A N/A N/A N/A

Enumerates connected drives

Description Indicator Process Target
File opened (read-only) \??\e: C:\Users\Admin\AppData\Local\Temp\2024-09-16_163197198eea18070d76eb4a5d06494b_floxif_magniber.exe N/A

Drops file in Program Files directory

Description Indicator Process Target
File created C:\Program Files\Common Files\System\symsrv.dll C:\Users\Admin\AppData\Local\Temp\2024-09-16_163197198eea18070d76eb4a5d06494b_floxif_magniber.exe N/A
File created \??\c:\program files\common files\system\symsrv.dll.000 C:\Users\Admin\AppData\Local\Temp\2024-09-16_163197198eea18070d76eb4a5d06494b_floxif_magniber.exe N/A

System Location Discovery: System Language Discovery

discovery
Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\2024-09-16_163197198eea18070d76eb4a5d06494b_floxif_magniber.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\2024-09-16_163197198eea18070d76eb4a5d06494b_floxif_magniber.exe N/A

Modifies registry class

Description Indicator Process Target
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{F404ECE4-0F0D-51C0-E1A8-25212FD86B6E}\InprocServer32\RuntimeVersion = "v2.0.50727" C:\Users\Admin\AppData\Local\Temp\2024-09-16_163197198eea18070d76eb4a5d06494b_floxif_magniber.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{F404ECE4-0F0D-51C0-E1A8-25212FD86B6E}\InprocServer32\ThreadingModel = "Both" C:\Users\Admin\AppData\Local\Temp\2024-09-16_163197198eea18070d76eb4a5d06494b_floxif_magniber.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{F404ECE4-0F0D-51C0-E1A8-25212FD86B6E}\Implemented Categories C:\Users\Admin\AppData\Local\Temp\2024-09-16_163197198eea18070d76eb4a5d06494b_floxif_magniber.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{F404ECE4-0F0D-51C0-E1A8-25212FD86B6E}\Implemented Categories\{62C8FE65-4EBB-45E7-B440-6E39B2CDBF29} C:\Users\Admin\AppData\Local\Temp\2024-09-16_163197198eea18070d76eb4a5d06494b_floxif_magniber.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{F404ECE4-0F0D-51C0-E1A8-25212FD86B6E}\InprocServer32 C:\Users\Admin\AppData\Local\Temp\2024-09-16_163197198eea18070d76eb4a5d06494b_floxif_magniber.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{F404ECE4-0F0D-51C0-E1A8-25212FD86B6E}\InprocServer32\Assembly = "Microsoft.Vsa.Vb.CodeDOMProcessor, Version=8.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a" C:\Users\Admin\AppData\Local\Temp\2024-09-16_163197198eea18070d76eb4a5d06494b_floxif_magniber.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{F404ECE4-0F0D-51C0-E1A8-25212FD86B6E} C:\Users\Admin\AppData\Local\Temp\2024-09-16_163197198eea18070d76eb4a5d06494b_floxif_magniber.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{F404ECE4-0F0D-51C0-E1A8-25212FD86B6E}\ = "Microsoft.Vsa.Vb.CodeDOM.Location" C:\Users\Admin\AppData\Local\Temp\2024-09-16_163197198eea18070d76eb4a5d06494b_floxif_magniber.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{F404ECE4-0F0D-51C0-E1A8-25212FD86B6E}\InprocServer32\ = "C:\\Windows\\SysWOW64\\MSCorEE.dll" C:\Users\Admin\AppData\Local\Temp\2024-09-16_163197198eea18070d76eb4a5d06494b_floxif_magniber.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{F404ECE4-0F0D-51C0-E1A8-25212FD86B6E}\InprocServer32\Class = "Microsoft.Vsa.Vb.CodeDOM.Location" C:\Users\Admin\AppData\Local\Temp\2024-09-16_163197198eea18070d76eb4a5d06494b_floxif_magniber.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\2024-09-16_163197198eea18070d76eb4a5d06494b_floxif_magniber.exe

"C:\Users\Admin\AppData\Local\Temp\2024-09-16_163197198eea18070d76eb4a5d06494b_floxif_magniber.exe"

C:\Users\Admin\AppData\Local\Temp\2024-09-16_163197198eea18070d76eb4a5d06494b_floxif_magniber.exe

"C:\Users\Admin\AppData\Local\Temp\2024-09-16_163197198eea18070d76eb4a5d06494b_floxif_magniber.exe"

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe

"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --field-trial-handle=4132,i,13995403245988825027,7033610968827661507,262144 --variations-seed-version --mojo-platform-channel-handle=4256 /prefetch:8

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 428 -p 1624 -ip 1624

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 1624 -s 1096

Network

Country Destination Domain Proto
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 5isohu.com udp
US 8.8.8.8:53 228.249.119.40.in-addr.arpa udp
US 8.8.8.8:53 www.aieov.com udp
US 45.33.20.235:80 www.aieov.com tcp
US 8.8.8.8:53 25.140.123.92.in-addr.arpa udp
US 8.8.8.8:53 235.20.33.45.in-addr.arpa udp
US 45.33.20.235:80 www.aieov.com tcp
US 8.8.8.8:53 5isohu.com udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 68.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 28.118.140.52.in-addr.arpa udp
US 45.33.20.235:80 www.aieov.com tcp
US 8.8.8.8:53 5isohu.com udp
US 8.8.8.8:53 13.86.106.20.in-addr.arpa udp
US 8.8.8.8:53 133.211.185.52.in-addr.arpa udp
US 8.8.8.8:53 157.123.68.40.in-addr.arpa udp
US 8.8.8.8:53 171.39.242.20.in-addr.arpa udp
US 8.8.8.8:53 18.134.221.88.in-addr.arpa udp
US 8.8.8.8:53 48.229.111.52.in-addr.arpa udp

Files

memory/1492-1-0x0000000000400000-0x0000000000FE5000-memory.dmp

C:\Program Files\Common Files\System\symsrv.dll

MD5 7574cf2c64f35161ab1292e2f532aabf
SHA1 14ba3fa927a06224dfe587014299e834def4644f
SHA256 de055a89de246e629a8694bde18af2b1605e4b9b493c7e4aef669dd67acf5085
SHA512 4db19f2d8d5bc1c7bbb812d3fa9c43b80fa22140b346d2760f090b73aed8a5177edb4bddc647a6ebd5a2db8565be5a1a36a602b0d759e38540d9a584ba5896ab

memory/1492-6-0x0000000010000000-0x0000000010030000-memory.dmp

memory/1624-9-0x0000000000400000-0x0000000000FE5000-memory.dmp

memory/1624-12-0x0000000010000000-0x0000000010030000-memory.dmp

memory/1624-19-0x0000000003B30000-0x0000000003C6C000-memory.dmp

memory/1624-14-0x0000000003B30000-0x0000000003C6C000-memory.dmp

memory/1624-23-0x0000000000400000-0x0000000000FE5000-memory.dmp

memory/1624-24-0x0000000000400000-0x0000000000FE5000-memory.dmp

memory/1624-25-0x0000000000400000-0x0000000000FE5000-memory.dmp

memory/1624-27-0x0000000000400000-0x0000000000FE5000-memory.dmp

memory/1624-28-0x0000000000400000-0x0000000000FE5000-memory.dmp

memory/1624-32-0x0000000000400000-0x0000000000FE5000-memory.dmp

memory/1624-31-0x0000000000400000-0x0000000000FE5000-memory.dmp

memory/1624-33-0x0000000003B30000-0x0000000003C6C000-memory.dmp

memory/1624-35-0x0000000003B30000-0x0000000003C6C000-memory.dmp

memory/1624-36-0x0000000003B30000-0x0000000003C6C000-memory.dmp

memory/1624-42-0x0000000010000000-0x0000000010030000-memory.dmp

memory/1624-41-0x0000000000400000-0x0000000000FE5000-memory.dmp

memory/1492-40-0x0000000010000000-0x0000000010030000-memory.dmp

memory/1492-39-0x0000000000400000-0x0000000000FE5000-memory.dmp

memory/1624-47-0x0000000003B30000-0x0000000003C6C000-memory.dmp

memory/1492-48-0x0000000000400000-0x0000000000FE5000-memory.dmp

memory/1492-50-0x0000000010000000-0x0000000010030000-memory.dmp