Malware Analysis Report

2024-11-13 20:02

Sample ID 240909-3byy9avhkr
Target 2024-09-09_0a0001eaf7a533c3f3d81627eacb9f00_floxif_mafia
SHA256 467f7b81e6ca837a3bd6256337cecc0041081356321f688d60fe718abf8146cc
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

467f7b81e6ca837a3bd6256337cecc0041081356321f688d60fe718abf8146cc

Threat Level: Known bad

The file 2024-09-09_0a0001eaf7a533c3f3d81627eacb9f00_floxif_mafia 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

ACProtect 1.3x - 1.4x DLL software

Loads dropped DLL

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

2024-09-09 23:21

Signatures

N/A

Analysis: behavioral1

Detonation Overview

Submitted

2024-09-09 23:21

Reported

2024-09-09 23:23

Platform

win7-20240903-en

Max time kernel

14s

Max time network

18s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2024-09-09_0a0001eaf7a533c3f3d81627eacb9f00_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\2024-09-09_0a0001eaf7a533c3f3d81627eacb9f00_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\2024-09-09_0a0001eaf7a533c3f3d81627eacb9f00_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\2024-09-09_0a0001eaf7a533c3f3d81627eacb9f00_floxif_mafia.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\2024-09-09_0a0001eaf7a533c3f3d81627eacb9f00_floxif_mafia.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\2024-09-09_0a0001eaf7a533c3f3d81627eacb9f00_floxif_mafia.exe

"C:\Users\Admin\AppData\Local\Temp\2024-09-09_0a0001eaf7a533c3f3d81627eacb9f00_floxif_mafia.exe"

Network

N/A

Files

memory/2752-0-0x0000000000CDE000-0x0000000000CDF000-memory.dmp

memory/2752-4-0x0000000010000000-0x0000000010030000-memory.dmp

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

MD5 7574cf2c64f35161ab1292e2f532aabf
SHA1 14ba3fa927a06224dfe587014299e834def4644f
SHA256 de055a89de246e629a8694bde18af2b1605e4b9b493c7e4aef669dd67acf5085
SHA512 4db19f2d8d5bc1c7bbb812d3fa9c43b80fa22140b346d2760f090b73aed8a5177edb4bddc647a6ebd5a2db8565be5a1a36a602b0d759e38540d9a584ba5896ab

memory/2752-11-0x0000000010000000-0x0000000010030000-memory.dmp

memory/2752-9-0x0000000000C90000-0x0000000000D7E000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-09-09 23:21

Reported

2024-09-09 23:23

Platform

win10v2004-20240802-en

Max time kernel

94s

Max time network

146s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2024-09-09_0a0001eaf7a533c3f3d81627eacb9f00_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

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\2024-09-09_0a0001eaf7a533c3f3d81627eacb9f00_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\2024-09-09_0a0001eaf7a533c3f3d81627eacb9f00_floxif_mafia.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\2024-09-09_0a0001eaf7a533c3f3d81627eacb9f00_floxif_mafia.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\2024-09-09_0a0001eaf7a533c3f3d81627eacb9f00_floxif_mafia.exe

"C:\Users\Admin\AppData\Local\Temp\2024-09-09_0a0001eaf7a533c3f3d81627eacb9f00_floxif_mafia.exe"

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3960 -ip 3960

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 3960 -s 1284

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 424 -p 3960 -ip 3960

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 3960 -s 1292

Network

Country Destination Domain Proto
US 8.8.8.8:53 232.168.11.51.in-addr.arpa udp
US 8.8.8.8:53 73.144.22.2.in-addr.arpa udp
US 8.8.8.8:53 2.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 228.249.119.40.in-addr.arpa udp
US 8.8.8.8:53 97.17.167.52.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 50.23.12.20.in-addr.arpa udp
US 8.8.8.8:53 71.190.18.2.in-addr.arpa udp
US 8.8.8.8:53 172.214.232.199.in-addr.arpa udp

Files

memory/3960-1-0x000000000050E000-0x000000000050F000-memory.dmp

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

MD5 7574cf2c64f35161ab1292e2f532aabf
SHA1 14ba3fa927a06224dfe587014299e834def4644f
SHA256 de055a89de246e629a8694bde18af2b1605e4b9b493c7e4aef669dd67acf5085
SHA512 4db19f2d8d5bc1c7bbb812d3fa9c43b80fa22140b346d2760f090b73aed8a5177edb4bddc647a6ebd5a2db8565be5a1a36a602b0d759e38540d9a584ba5896ab

memory/3960-5-0x0000000010000000-0x0000000010030000-memory.dmp

memory/3960-7-0x00000000004C0000-0x00000000005AE000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\jusched.log

MD5 26a54ee30e389f48066d7e3deda76d96
SHA1 802dab3d5d9e70e41257aaf4237efe274a5bc3bf
SHA256 0171d0d831865e53a6c71f76739209b9f3918b630c6b30267279b1527ddcd33a
SHA512 b1b2467db24c307dd89526b5b0aae00c9ff1ca7a0492e11f67ec7c7ed903d381c387712fb0f282d8c7102a7c07569ea2b3ff0bb2b86c55d5b73c03b6aa9b5024

memory/3960-22-0x00000000004C0000-0x00000000005AE000-memory.dmp

memory/3960-21-0x0000000010000000-0x0000000010030000-memory.dmp