Malware Analysis Report

2024-12-08 02:37

Sample ID 240913-ppldes1bnp
Target 2024-09-13_0ad1c22d3ec2e00abb9bf96e17d907fd_floxif_mafia
SHA256 7d690b08c9819cb6fb066b9c1327623e800908cdb135dd9f728e7cc8064e9521
Tags
floxif backdoor discovery persistence privilege_escalation 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

7d690b08c9819cb6fb066b9c1327623e800908cdb135dd9f728e7cc8064e9521

Threat Level: Known bad

The file 2024-09-13_0ad1c22d3ec2e00abb9bf96e17d907fd_floxif_mafia was found to be: Known bad.

Malicious Activity Summary

floxif backdoor discovery persistence privilege_escalation trojan upx

Floxif, Floodfix

Detects Floxif payload

Event Triggered Execution: AppInit DLLs

UPX packed file

ACProtect 1.3x - 1.4x DLL software

Loads dropped DLL

Drops file in Program Files directory

System Location Discovery: System Language Discovery

Suspicious use of AdjustPrivilegeToken

Suspicious use of SetWindowsHookEx

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-09-13 12:30

Signatures

N/A

Analysis: behavioral1

Detonation Overview

Submitted

2024-09-13 12:30

Reported

2024-09-13 12:32

Platform

win7-20240903-en

Max time kernel

119s

Max time network

122s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2024-09-13_0ad1c22d3ec2e00abb9bf96e17d907fd_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

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

Loads dropped DLL

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\2024-09-13_0ad1c22d3ec2e00abb9bf96e17d907fd_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\2024-09-13_0ad1c22d3ec2e00abb9bf96e17d907fd_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_0ad1c22d3ec2e00abb9bf96e17d907fd_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_0ad1c22d3ec2e00abb9bf96e17d907fd_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_0ad1c22d3ec2e00abb9bf96e17d907fd_floxif_mafia.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\2024-09-13_0ad1c22d3ec2e00abb9bf96e17d907fd_floxif_mafia.exe

"C:\Users\Admin\AppData\Local\Temp\2024-09-13_0ad1c22d3ec2e00abb9bf96e17d907fd_floxif_mafia.exe"

Network

N/A

Files

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

MD5 7574cf2c64f35161ab1292e2f532aabf
SHA1 14ba3fa927a06224dfe587014299e834def4644f
SHA256 de055a89de246e629a8694bde18af2b1605e4b9b493c7e4aef669dd67acf5085
SHA512 4db19f2d8d5bc1c7bbb812d3fa9c43b80fa22140b346d2760f090b73aed8a5177edb4bddc647a6ebd5a2db8565be5a1a36a602b0d759e38540d9a584ba5896ab

memory/2508-3-0x0000000010000000-0x0000000010030000-memory.dmp

memory/2508-7-0x0000000010000000-0x0000000010030000-memory.dmp

memory/2508-5-0x0000000000FF0000-0x00000000011B6000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-09-13 12:30

Reported

2024-09-13 12:32

Platform

win10v2004-20240802-en

Max time kernel

97s

Max time network

100s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2024-09-13_0ad1c22d3ec2e00abb9bf96e17d907fd_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

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

Loads dropped DLL

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\2024-09-13_0ad1c22d3ec2e00abb9bf96e17d907fd_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\2024-09-13_0ad1c22d3ec2e00abb9bf96e17d907fd_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_0ad1c22d3ec2e00abb9bf96e17d907fd_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_0ad1c22d3ec2e00abb9bf96e17d907fd_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_0ad1c22d3ec2e00abb9bf96e17d907fd_floxif_mafia.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\2024-09-13_0ad1c22d3ec2e00abb9bf96e17d907fd_floxif_mafia.exe

"C:\Users\Admin\AppData\Local\Temp\2024-09-13_0ad1c22d3ec2e00abb9bf96e17d907fd_floxif_mafia.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 241.150.49.20.in-addr.arpa udp
US 8.8.8.8:53 172.214.232.199.in-addr.arpa udp
US 8.8.8.8:53 23.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 86.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 56.126.166.20.in-addr.arpa udp
US 8.8.8.8:53 73.144.22.2.in-addr.arpa udp
US 8.8.8.8:53 23.236.111.52.in-addr.arpa udp

Files

memory/1180-3-0x0000000010000000-0x0000000010030000-memory.dmp

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

MD5 7574cf2c64f35161ab1292e2f532aabf
SHA1 14ba3fa927a06224dfe587014299e834def4644f
SHA256 de055a89de246e629a8694bde18af2b1605e4b9b493c7e4aef669dd67acf5085
SHA512 4db19f2d8d5bc1c7bbb812d3fa9c43b80fa22140b346d2760f090b73aed8a5177edb4bddc647a6ebd5a2db8565be5a1a36a602b0d759e38540d9a584ba5896ab

memory/1180-5-0x0000000000721000-0x0000000000722000-memory.dmp

memory/1180-8-0x0000000010000000-0x0000000010030000-memory.dmp

memory/1180-6-0x0000000000720000-0x00000000008E6000-memory.dmp