Malware Analysis Report

2024-12-08 02:39

Sample ID 240913-pswcss1gmb
Target 2024-09-13_154d2d3465689d40494b04bf5d54439b_floxif_hijackloader_mafia
SHA256 dc4586419f7ab5278827a6601f1420eac9797a4a56a17a4de40127287efbc58e
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

dc4586419f7ab5278827a6601f1420eac9797a4a56a17a4de40127287efbc58e

Threat Level: Known bad

The file 2024-09-13_154d2d3465689d40494b04bf5d54439b_floxif_hijackloader_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

Program crash

Suspicious use of AdjustPrivilegeToken

Suspicious use of SetWindowsHookEx

Suspicious behavior: EnumeratesProcesses

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-09-13 12:36

Signatures

N/A

Analysis: behavioral1

Detonation Overview

Submitted

2024-09-13 12:36

Reported

2024-09-13 12:38

Platform

win7-20240903-en

Max time kernel

120s

Max time network

125s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2024-09-13_154d2d3465689d40494b04bf5d54439b_floxif_hijackloader_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\2024-09-13_154d2d3465689d40494b04bf5d54439b_floxif_hijackloader_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_154d2d3465689d40494b04bf5d54439b_floxif_hijackloader_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_154d2d3465689d40494b04bf5d54439b_floxif_hijackloader_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_154d2d3465689d40494b04bf5d54439b_floxif_hijackloader_mafia.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\2024-09-13_154d2d3465689d40494b04bf5d54439b_floxif_hijackloader_mafia.exe

"C:\Users\Admin\AppData\Local\Temp\2024-09-13_154d2d3465689d40494b04bf5d54439b_floxif_hijackloader_mafia.exe"

Network

N/A

Files

memory/2704-3-0x0000000010000000-0x0000000010030000-memory.dmp

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

MD5 7574cf2c64f35161ab1292e2f532aabf
SHA1 14ba3fa927a06224dfe587014299e834def4644f
SHA256 de055a89de246e629a8694bde18af2b1605e4b9b493c7e4aef669dd67acf5085
SHA512 4db19f2d8d5bc1c7bbb812d3fa9c43b80fa22140b346d2760f090b73aed8a5177edb4bddc647a6ebd5a2db8565be5a1a36a602b0d759e38540d9a584ba5896ab

memory/2704-7-0x0000000010000000-0x0000000010030000-memory.dmp

memory/2704-5-0x00000000010B0000-0x0000000001358000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-09-13 12:36

Reported

2024-09-13 12:38

Platform

win10v2004-20240802-en

Max time kernel

94s

Max time network

95s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2024-09-13_154d2d3465689d40494b04bf5d54439b_floxif_hijackloader_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

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_154d2d3465689d40494b04bf5d54439b_floxif_hijackloader_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_154d2d3465689d40494b04bf5d54439b_floxif_hijackloader_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_154d2d3465689d40494b04bf5d54439b_floxif_hijackloader_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_154d2d3465689d40494b04bf5d54439b_floxif_hijackloader_mafia.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\2024-09-13_154d2d3465689d40494b04bf5d54439b_floxif_hijackloader_mafia.exe

"C:\Users\Admin\AppData\Local\Temp\2024-09-13_154d2d3465689d40494b04bf5d54439b_floxif_hijackloader_mafia.exe"

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 424 -p 1096 -ip 1096

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 1096 -s 804

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 524 -p 1096 -ip 1096

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 1096 -s 816

Network

Country Destination Domain Proto
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 154.239.44.20.in-addr.arpa udp
US 8.8.8.8:53 81.144.22.2.in-addr.arpa udp
US 8.8.8.8:53 17.160.190.20.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 58.55.71.13.in-addr.arpa udp
US 8.8.8.8:53 26.165.165.52.in-addr.arpa udp
US 8.8.8.8:53 18.31.95.13.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 172.214.232.199.in-addr.arpa udp

Files

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

MD5 7574cf2c64f35161ab1292e2f532aabf
SHA1 14ba3fa927a06224dfe587014299e834def4644f
SHA256 de055a89de246e629a8694bde18af2b1605e4b9b493c7e4aef669dd67acf5085
SHA512 4db19f2d8d5bc1c7bbb812d3fa9c43b80fa22140b346d2760f090b73aed8a5177edb4bddc647a6ebd5a2db8565be5a1a36a602b0d759e38540d9a584ba5896ab

memory/1096-4-0x0000000010000000-0x0000000010030000-memory.dmp

memory/1096-6-0x0000000000821000-0x0000000000822000-memory.dmp

memory/1096-9-0x0000000010000000-0x0000000010030000-memory.dmp

memory/1096-7-0x0000000000820000-0x0000000000AC8000-memory.dmp