Malware Analysis Report

2025-06-16 02:05

Sample ID 240728-pmgmfsxcpp
Target 2024-07-28_307eb5a0dd1d6f2cda15c61d8924b290_floxif_mafia
SHA256 549c33c13f2a0b44eaa7067c07d6ac0220251d99e56337b615aefaad7bd55153
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

549c33c13f2a0b44eaa7067c07d6ac0220251d99e56337b615aefaad7bd55153

Threat Level: Known bad

The file 2024-07-28_307eb5a0dd1d6f2cda15c61d8924b290_floxif_mafia was found to be: Known bad.

Malicious Activity Summary

floxif backdoor discovery trojan upx

Floxif, Floodfix

Detects Floxif payload

Loads dropped DLL

UPX packed file

ACProtect 1.3x - 1.4x DLL software

Enumerates connected drives

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

2024-07-28 12:26

Signatures

N/A

Analysis: behavioral1

Detonation Overview

Submitted

2024-07-28 12:26

Reported

2024-07-28 12:29

Platform

win7-20240704-en

Max time kernel

120s

Max time network

124s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2024-07-28_307eb5a0dd1d6f2cda15c61d8924b290_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\2024-07-28_307eb5a0dd1d6f2cda15c61d8924b290_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\2024-07-28_307eb5a0dd1d6f2cda15c61d8924b290_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\2024-07-28_307eb5a0dd1d6f2cda15c61d8924b290_floxif_mafia.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\2024-07-28_307eb5a0dd1d6f2cda15c61d8924b290_floxif_mafia.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\2024-07-28_307eb5a0dd1d6f2cda15c61d8924b290_floxif_mafia.exe

"C:\Users\Admin\AppData\Local\Temp\2024-07-28_307eb5a0dd1d6f2cda15c61d8924b290_floxif_mafia.exe"

Network

N/A

Files

memory/2120-3-0x0000000010000000-0x0000000010030000-memory.dmp

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

MD5 7574cf2c64f35161ab1292e2f532aabf
SHA1 14ba3fa927a06224dfe587014299e834def4644f
SHA256 de055a89de246e629a8694bde18af2b1605e4b9b493c7e4aef669dd67acf5085
SHA512 4db19f2d8d5bc1c7bbb812d3fa9c43b80fa22140b346d2760f090b73aed8a5177edb4bddc647a6ebd5a2db8565be5a1a36a602b0d759e38540d9a584ba5896ab

memory/2120-7-0x0000000010000000-0x0000000010030000-memory.dmp

memory/2120-5-0x0000000000BC0000-0x0000000000E2A000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-07-28 12:26

Reported

2024-07-28 12:29

Platform

win10v2004-20240709-en

Max time kernel

142s

Max time network

154s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2024-07-28_307eb5a0dd1d6f2cda15c61d8924b290_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\2024-07-28_307eb5a0dd1d6f2cda15c61d8924b290_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\2024-07-28_307eb5a0dd1d6f2cda15c61d8924b290_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\2024-07-28_307eb5a0dd1d6f2cda15c61d8924b290_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\2024-07-28_307eb5a0dd1d6f2cda15c61d8924b290_floxif_mafia.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\2024-07-28_307eb5a0dd1d6f2cda15c61d8924b290_floxif_mafia.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\2024-07-28_307eb5a0dd1d6f2cda15c61d8924b290_floxif_mafia.exe

"C:\Users\Admin\AppData\Local\Temp\2024-07-28_307eb5a0dd1d6f2cda15c61d8924b290_floxif_mafia.exe"

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 556 -ip 556

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 428 -p 556 -ip 556

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 556 -s 912

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 556 -s 848

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 556 -p 556 -ip 556

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 556 -s 856

Network

Country Destination Domain Proto
US 8.8.8.8:53 g.bing.com udp
US 13.107.21.237:443 g.bing.com tcp
US 8.8.8.8:53 228.249.119.40.in-addr.arpa udp
US 8.8.8.8:53 237.21.107.13.in-addr.arpa udp
US 8.8.8.8:53 81.144.22.2.in-addr.arpa udp
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 8.8.8.8:53 133.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 88.156.103.20.in-addr.arpa udp
US 8.8.8.8:53 232.168.11.51.in-addr.arpa udp
US 8.8.8.8:53 28.118.140.52.in-addr.arpa udp
US 8.8.8.8:53 196.249.167.52.in-addr.arpa udp
US 8.8.8.8:53 183.59.114.20.in-addr.arpa udp
US 8.8.8.8:53 198.187.3.20.in-addr.arpa udp
US 8.8.8.8:53 172.214.232.199.in-addr.arpa udp
US 8.8.8.8:53 43.58.199.20.in-addr.arpa udp
US 8.8.8.8:53 tse1.mm.bing.net udp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 150.171.28.10:443 tse1.mm.bing.net tcp

Files

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

MD5 7574cf2c64f35161ab1292e2f532aabf
SHA1 14ba3fa927a06224dfe587014299e834def4644f
SHA256 de055a89de246e629a8694bde18af2b1605e4b9b493c7e4aef669dd67acf5085
SHA512 4db19f2d8d5bc1c7bbb812d3fa9c43b80fa22140b346d2760f090b73aed8a5177edb4bddc647a6ebd5a2db8565be5a1a36a602b0d759e38540d9a584ba5896ab

memory/556-4-0x0000000010000000-0x0000000010030000-memory.dmp

memory/556-6-0x00000000005A1000-0x00000000005A2000-memory.dmp

memory/556-11-0x00000000005A0000-0x000000000080A000-memory.dmp

memory/556-13-0x0000000010000000-0x0000000010030000-memory.dmp