Malware Analysis Report

2024-12-08 02:37

Sample ID 240913-p54vpssbqc
Target 2024-09-13_527292900db9327c48d9cfb89a76359f_floxif_mafia
SHA256 88ee1ae11231d3b021955b95cb732fcb5cdeee3616f77904db7f0ee162f773df
Tags
floxif backdoor discovery trojan upx
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

88ee1ae11231d3b021955b95cb732fcb5cdeee3616f77904db7f0ee162f773df

Threat Level: Known bad

The file 2024-09-13_527292900db9327c48d9cfb89a76359f_floxif_mafia was found to be: Known bad.

Malicious Activity Summary

floxif backdoor discovery trojan upx

Floxif, Floodfix

Detects Floxif payload

UPX packed file

ACProtect 1.3x - 1.4x DLL software

Loads dropped DLL

Enumerates connected drives

Drops file in Program Files directory

System Location Discovery: System Language Discovery

Suspicious behavior: EnumeratesProcesses

Suspicious use of AdjustPrivilegeToken

Suspicious use of SetWindowsHookEx

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-09-13 12:55

Signatures

N/A

Analysis: behavioral1

Detonation Overview

Submitted

2024-09-13 12:55

Reported

2024-09-13 12:58

Platform

win7-20240708-en

Max time kernel

119s

Max time network

120s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2024-09-13_527292900db9327c48d9cfb89a76359f_floxif_mafia.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

Loads dropped DLL

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\2024-09-13_527292900db9327c48d9cfb89a76359f_floxif_mafia.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

Enumerates connected drives

Description Indicator Process Target
File opened (read-only) \??\e: C:\Users\Admin\AppData\Local\Temp\2024-09-13_527292900db9327c48d9cfb89a76359f_floxif_mafia.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\2024-09-13_527292900db9327c48d9cfb89a76359f_floxif_mafia.exe N/A
File created \??\c:\program files\common files\system\symsrv.dll.000 C:\Users\Admin\AppData\Local\Temp\2024-09-13_527292900db9327c48d9cfb89a76359f_floxif_mafia.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\2024-09-13_527292900db9327c48d9cfb89a76359f_floxif_mafia.exe N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\2024-09-13_527292900db9327c48d9cfb89a76359f_floxif_mafia.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\2024-09-13_527292900db9327c48d9cfb89a76359f_floxif_mafia.exe N/A

Suspicious use of SetWindowsHookEx

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\2024-09-13_527292900db9327c48d9cfb89a76359f_floxif_mafia.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\2024-09-13_527292900db9327c48d9cfb89a76359f_floxif_mafia.exe

"C:\Users\Admin\AppData\Local\Temp\2024-09-13_527292900db9327c48d9cfb89a76359f_floxif_mafia.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 45.56.79.23:80 www.aieov.com tcp

Files

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

MD5 7574cf2c64f35161ab1292e2f532aabf
SHA1 14ba3fa927a06224dfe587014299e834def4644f
SHA256 de055a89de246e629a8694bde18af2b1605e4b9b493c7e4aef669dd67acf5085
SHA512 4db19f2d8d5bc1c7bbb812d3fa9c43b80fa22140b346d2760f090b73aed8a5177edb4bddc647a6ebd5a2db8565be5a1a36a602b0d759e38540d9a584ba5896ab

memory/2964-3-0x0000000010000000-0x0000000010030000-memory.dmp

memory/2964-12-0x0000000010000000-0x0000000010030000-memory.dmp

memory/2964-10-0x00000000002F0000-0x000000000073C000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-09-13 12:55

Reported

2024-09-13 12:58

Platform

win10v2004-20240802-en

Max time kernel

149s

Max time network

151s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2024-09-13_527292900db9327c48d9cfb89a76359f_floxif_mafia.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

Loads dropped DLL

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\2024-09-13_527292900db9327c48d9cfb89a76359f_floxif_mafia.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

Enumerates connected drives

Description Indicator Process Target
File opened (read-only) \??\e: C:\Users\Admin\AppData\Local\Temp\2024-09-13_527292900db9327c48d9cfb89a76359f_floxif_mafia.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\2024-09-13_527292900db9327c48d9cfb89a76359f_floxif_mafia.exe N/A
File created \??\c:\program files\common files\system\symsrv.dll.000 C:\Users\Admin\AppData\Local\Temp\2024-09-13_527292900db9327c48d9cfb89a76359f_floxif_mafia.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\2024-09-13_527292900db9327c48d9cfb89a76359f_floxif_mafia.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\2024-09-13_527292900db9327c48d9cfb89a76359f_floxif_mafia.exe N/A

Suspicious use of SetWindowsHookEx

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\2024-09-13_527292900db9327c48d9cfb89a76359f_floxif_mafia.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\2024-09-13_527292900db9327c48d9cfb89a76359f_floxif_mafia.exe

"C:\Users\Admin\AppData\Local\Temp\2024-09-13_527292900db9327c48d9cfb89a76359f_floxif_mafia.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 28.118.140.52.in-addr.arpa udp
US 8.8.8.8:53 172.214.232.199.in-addr.arpa udp
US 8.8.8.8:53 5isohu.com udp
US 8.8.8.8:53 www.aieov.com udp
US 45.79.19.196:80 www.aieov.com tcp
US 8.8.8.8:53 67.31.126.40.in-addr.arpa udp
US 8.8.8.8:53 196.19.79.45.in-addr.arpa udp
US 8.8.8.8:53 149.220.183.52.in-addr.arpa udp
US 8.8.8.8:53 50.23.12.20.in-addr.arpa udp
US 8.8.8.8:53 56.126.166.20.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 81.144.22.2.in-addr.arpa udp
US 8.8.8.8:53 23.236.111.52.in-addr.arpa udp

Files

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

MD5 7574cf2c64f35161ab1292e2f532aabf
SHA1 14ba3fa927a06224dfe587014299e834def4644f
SHA256 de055a89de246e629a8694bde18af2b1605e4b9b493c7e4aef669dd67acf5085
SHA512 4db19f2d8d5bc1c7bbb812d3fa9c43b80fa22140b346d2760f090b73aed8a5177edb4bddc647a6ebd5a2db8565be5a1a36a602b0d759e38540d9a584ba5896ab

memory/1800-4-0x0000000010000000-0x0000000010030000-memory.dmp

memory/1800-6-0x0000000000A67000-0x0000000000A68000-memory.dmp

memory/1800-14-0x0000000010000000-0x0000000010030000-memory.dmp

memory/1800-12-0x0000000000A60000-0x0000000000EAC000-memory.dmp