Malware Analysis Report

2025-08-05 08:55

Sample ID 250108-jhvevszqax
Target 2025-01-08_1199b01d4c3d26506cf672d5b8dcd0cf_floxif_mafia
SHA256 f5dfc5a5ce2e2cd6aeb165e1fabf84d354466b82b22640c02d5a6147958f5866
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

f5dfc5a5ce2e2cd6aeb165e1fabf84d354466b82b22640c02d5a6147958f5866

Threat Level: Known bad

The file 2025-01-08_1199b01d4c3d26506cf672d5b8dcd0cf_floxif_mafia was found to be: Known bad.

Malicious Activity Summary

floxif backdoor discovery trojan upx

Floxif family

Floxif, Floodfix

Detects Floxif payload

Loads dropped DLL

ACProtect 1.3x - 1.4x DLL software

Enumerates connected drives

UPX packed file

Drops file in Program Files directory

System Location Discovery: System Language Discovery

Program crash

Suspicious use of AdjustPrivilegeToken

Suspicious behavior: EnumeratesProcesses

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2025-01-08 07:40

Signatures

N/A

Analysis: behavioral1

Detonation Overview

Submitted

2025-01-08 07:40

Reported

2025-01-08 07:43

Platform

win7-20240903-en

Max time kernel

117s

Max time network

118s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2025-01-08_1199b01d4c3d26506cf672d5b8dcd0cf_floxif_mafia.exe"

Signatures

Floxif family

floxif

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\2025-01-08_1199b01d4c3d26506cf672d5b8dcd0cf_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

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\2025-01-08_1199b01d4c3d26506cf672d5b8dcd0cf_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\2025-01-08_1199b01d4c3d26506cf672d5b8dcd0cf_floxif_mafia.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\2025-01-08_1199b01d4c3d26506cf672d5b8dcd0cf_floxif_mafia.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\2025-01-08_1199b01d4c3d26506cf672d5b8dcd0cf_floxif_mafia.exe

"C:\Users\Admin\AppData\Local\Temp\2025-01-08_1199b01d4c3d26506cf672d5b8dcd0cf_floxif_mafia.exe"

Network

N/A

Files

memory/2532-3-0x0000000010000000-0x0000000010030000-memory.dmp

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

MD5 7574cf2c64f35161ab1292e2f532aabf
SHA1 14ba3fa927a06224dfe587014299e834def4644f
SHA256 de055a89de246e629a8694bde18af2b1605e4b9b493c7e4aef669dd67acf5085
SHA512 4db19f2d8d5bc1c7bbb812d3fa9c43b80fa22140b346d2760f090b73aed8a5177edb4bddc647a6ebd5a2db8565be5a1a36a602b0d759e38540d9a584ba5896ab

memory/2532-7-0x0000000010000000-0x0000000010030000-memory.dmp

memory/2532-5-0x00000000012D0000-0x000000000153A000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2025-01-08 07:40

Reported

2025-01-08 07:43

Platform

win10v2004-20241007-en

Max time kernel

94s

Max time network

145s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2025-01-08_1199b01d4c3d26506cf672d5b8dcd0cf_floxif_mafia.exe"

Signatures

Floxif family

floxif

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\2025-01-08_1199b01d4c3d26506cf672d5b8dcd0cf_floxif_mafia.exe N/A

Enumerates connected drives

Description Indicator Process Target
File opened (read-only) \??\e: C:\Users\Admin\AppData\Local\Temp\2025-01-08_1199b01d4c3d26506cf672d5b8dcd0cf_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

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\2025-01-08_1199b01d4c3d26506cf672d5b8dcd0cf_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\2025-01-08_1199b01d4c3d26506cf672d5b8dcd0cf_floxif_mafia.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\2025-01-08_1199b01d4c3d26506cf672d5b8dcd0cf_floxif_mafia.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\2025-01-08_1199b01d4c3d26506cf672d5b8dcd0cf_floxif_mafia.exe

"C:\Users\Admin\AppData\Local\Temp\2025-01-08_1199b01d4c3d26506cf672d5b8dcd0cf_floxif_mafia.exe"

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 440 -p 2524 -ip 2524

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 2524 -ip 2524

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 2524 -s 832

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 2524 -s 852

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 552 -p 2524 -ip 2524

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 2524 -s 840

Network

Country Destination Domain Proto
US 8.8.8.8:53 com.google.input_tools.skinui udp
US 8.8.8.8:53 com.google.input_tools.keyboard_input udp
US 8.8.8.8:53 com.google.input_tools.input_method_switch udp
US 8.8.8.8:53 97.17.167.52.in-addr.arpa udp
US 8.8.8.8:53 73.31.126.40.in-addr.arpa udp
US 8.8.8.8:53 217.106.137.52.in-addr.arpa udp
US 8.8.8.8:53 212.20.149.52.in-addr.arpa udp
US 8.8.8.8:53 18.31.95.13.in-addr.arpa udp
US 8.8.8.8:53 22.49.80.91.in-addr.arpa udp
US 8.8.8.8:53 8.153.16.2.in-addr.arpa udp
US 8.8.8.8:53 11.227.111.52.in-addr.arpa udp

Files

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

MD5 7574cf2c64f35161ab1292e2f532aabf
SHA1 14ba3fa927a06224dfe587014299e834def4644f
SHA256 de055a89de246e629a8694bde18af2b1605e4b9b493c7e4aef669dd67acf5085
SHA512 4db19f2d8d5bc1c7bbb812d3fa9c43b80fa22140b346d2760f090b73aed8a5177edb4bddc647a6ebd5a2db8565be5a1a36a602b0d759e38540d9a584ba5896ab

memory/2524-4-0x0000000010000000-0x0000000010030000-memory.dmp

memory/2524-6-0x0000000000741000-0x0000000000742000-memory.dmp

memory/2524-13-0x0000000010000000-0x0000000010030000-memory.dmp

memory/2524-11-0x0000000000740000-0x00000000009AA000-memory.dmp