Malware Analysis Report

2025-01-02 07:19

Sample ID 240915-rl8qnaxclb
Target Virus.Win32.Floxif.H-a177fa8b3b8ff8996000f67a6d20955fadc8eec8fa9ddf455894ff9b213cd591-NeikiAnalytics
SHA256 a177fa8b3b8ff8996000f67a6d20955fadc8eec8fa9ddf455894ff9b213cd591
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

a177fa8b3b8ff8996000f67a6d20955fadc8eec8fa9ddf455894ff9b213cd591

Threat Level: Known bad

The file Virus.Win32.Floxif.H-a177fa8b3b8ff8996000f67a6d20955fadc8eec8fa9ddf455894ff9b213cd591-NeikiAnalytics 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

UPX packed file

Loads dropped DLL

Enumerates connected drives

Drops file in Program Files directory

System Location Discovery: System Language Discovery

Suspicious use of AdjustPrivilegeToken

Suspicious behavior: EnumeratesProcesses

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-09-15 14:18

Signatures

N/A

Analysis: behavioral1

Detonation Overview

Submitted

2024-09-15 14:18

Reported

2024-09-15 14:20

Platform

win7-20240903-en

Max time kernel

14s

Max time network

19s

Command Line

"C:\Users\Admin\AppData\Local\Temp\Virus.Win32.Floxif.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\Virus.Win32.Floxif.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\Virus.Win32.Floxif.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\Virus.Win32.Floxif.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\Virus.Win32.Floxif.exe N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\Virus.Win32.Floxif.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\Virus.Win32.Floxif.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\Virus.Win32.Floxif.exe

"C:\Users\Admin\AppData\Local\Temp\Virus.Win32.Floxif.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 5isohu.com udp
US 8.8.8.8:53 www.aieov.com udp
US 72.14.185.43:80 www.aieov.com tcp

Files

memory/904-3-0x0000000010000000-0x0000000010030000-memory.dmp

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

MD5 7574cf2c64f35161ab1292e2f532aabf
SHA1 14ba3fa927a06224dfe587014299e834def4644f
SHA256 de055a89de246e629a8694bde18af2b1605e4b9b493c7e4aef669dd67acf5085
SHA512 4db19f2d8d5bc1c7bbb812d3fa9c43b80fa22140b346d2760f090b73aed8a5177edb4bddc647a6ebd5a2db8565be5a1a36a602b0d759e38540d9a584ba5896ab

memory/904-5-0x0000000001005000-0x0000000001006000-memory.dmp

memory/904-10-0x0000000001000000-0x000000000101E000-memory.dmp

memory/904-11-0x0000000010000000-0x0000000010030000-memory.dmp

memory/904-12-0x0000000001000000-0x000000000101E000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-09-15 14:18

Reported

2024-09-15 14:20

Platform

win10v2004-20240802-en

Max time kernel

95s

Max time network

96s

Command Line

"C:\Users\Admin\AppData\Local\Temp\Virus.Win32.Floxif.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\Virus.Win32.Floxif.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\Virus.Win32.Floxif.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\Virus.Win32.Floxif.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\Virus.Win32.Floxif.exe N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\Virus.Win32.Floxif.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\Virus.Win32.Floxif.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\Virus.Win32.Floxif.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\Virus.Win32.Floxif.exe

"C:\Users\Admin\AppData\Local\Temp\Virus.Win32.Floxif.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 133.211.185.52.in-addr.arpa udp
US 8.8.8.8:53 5isohu.com udp
US 8.8.8.8:53 www.aieov.com udp
US 72.14.185.43:80 www.aieov.com tcp
US 8.8.8.8:53 240.143.123.92.in-addr.arpa udp
US 8.8.8.8:53 75.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 43.185.14.72.in-addr.arpa udp
US 8.8.8.8:53 5isohu.com udp
US 72.14.185.43:80 www.aieov.com tcp
US 8.8.8.8:53 58.55.71.13.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 8.8.8.8:53 217.135.221.88.in-addr.arpa udp
US 8.8.8.8:53 172.214.232.199.in-addr.arpa udp
US 8.8.8.8:53 43.229.111.52.in-addr.arpa udp

Files

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

MD5 7574cf2c64f35161ab1292e2f532aabf
SHA1 14ba3fa927a06224dfe587014299e834def4644f
SHA256 de055a89de246e629a8694bde18af2b1605e4b9b493c7e4aef669dd67acf5085
SHA512 4db19f2d8d5bc1c7bbb812d3fa9c43b80fa22140b346d2760f090b73aed8a5177edb4bddc647a6ebd5a2db8565be5a1a36a602b0d759e38540d9a584ba5896ab

memory/4808-4-0x0000000010000000-0x0000000010030000-memory.dmp

memory/4808-6-0x0000000001005000-0x0000000001006000-memory.dmp

memory/4808-11-0x0000000001000000-0x000000000101E000-memory.dmp

memory/4808-12-0x0000000001000000-0x000000000101E000-memory.dmp

memory/4808-14-0x0000000010000000-0x0000000010030000-memory.dmp

memory/4808-15-0x0000000001000000-0x000000000101E000-memory.dmp