Malware Analysis Report

2025-01-02 07:27

Sample ID 240816-sh7jvsverl
Target 20240816bed82ac6be5915a59ae6c46c8d1bc3e1floxifmafia
SHA256 b14ebf9950bb465852eb466a04b57f7473483d8d66ab26b6b6cf56d2f0fefb1d
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

b14ebf9950bb465852eb466a04b57f7473483d8d66ab26b6b6cf56d2f0fefb1d

Threat Level: Known bad

The file 20240816bed82ac6be5915a59ae6c46c8d1bc3e1floxifmafia 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

Unsigned PE

System Location Discovery: System Language Discovery

Suspicious use of AdjustPrivilegeToken

Suspicious use of SetWindowsHookEx

Suspicious behavior: EnumeratesProcesses

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-08-16 15:08

Signatures

Unsigned PE

Description Indicator Process Target
N/A N/A N/A N/A

Analysis: behavioral1

Detonation Overview

Submitted

2024-08-16 15:08

Reported

2024-08-16 15:11

Platform

win7-20240729-en

Max time kernel

16s

Max time network

17s

Command Line

"C:\Users\Admin\AppData\Local\Temp\20240816bed82ac6be5915a59ae6c46c8d1bc3e1floxifmafia.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\20240816bed82ac6be5915a59ae6c46c8d1bc3e1floxifmafia.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\20240816bed82ac6be5915a59ae6c46c8d1bc3e1floxifmafia.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\20240816bed82ac6be5915a59ae6c46c8d1bc3e1floxifmafia.exe N/A
File created \??\c:\program files\common files\system\symsrv.dll.000 C:\Users\Admin\AppData\Local\Temp\20240816bed82ac6be5915a59ae6c46c8d1bc3e1floxifmafia.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\20240816bed82ac6be5915a59ae6c46c8d1bc3e1floxifmafia.exe N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\20240816bed82ac6be5915a59ae6c46c8d1bc3e1floxifmafia.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\20240816bed82ac6be5915a59ae6c46c8d1bc3e1floxifmafia.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\20240816bed82ac6be5915a59ae6c46c8d1bc3e1floxifmafia.exe

"C:\Users\Admin\AppData\Local\Temp\20240816bed82ac6be5915a59ae6c46c8d1bc3e1floxifmafia.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 72.14.178.174:80 www.aieov.com tcp

Files

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

MD5 7574cf2c64f35161ab1292e2f532aabf
SHA1 14ba3fa927a06224dfe587014299e834def4644f
SHA256 de055a89de246e629a8694bde18af2b1605e4b9b493c7e4aef669dd67acf5085
SHA512 4db19f2d8d5bc1c7bbb812d3fa9c43b80fa22140b346d2760f090b73aed8a5177edb4bddc647a6ebd5a2db8565be5a1a36a602b0d759e38540d9a584ba5896ab

memory/628-3-0x0000000010000000-0x0000000010030000-memory.dmp

memory/628-12-0x0000000010000000-0x0000000010030000-memory.dmp

memory/628-10-0x0000000000DB0000-0x000000000111A000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-08-16 15:08

Reported

2024-08-16 15:11

Platform

win10v2004-20240802-en

Max time kernel

148s

Max time network

150s

Command Line

"C:\Users\Admin\AppData\Local\Temp\20240816bed82ac6be5915a59ae6c46c8d1bc3e1floxifmafia.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\20240816bed82ac6be5915a59ae6c46c8d1bc3e1floxifmafia.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\20240816bed82ac6be5915a59ae6c46c8d1bc3e1floxifmafia.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\20240816bed82ac6be5915a59ae6c46c8d1bc3e1floxifmafia.exe N/A
File created \??\c:\program files\common files\system\symsrv.dll.000 C:\Users\Admin\AppData\Local\Temp\20240816bed82ac6be5915a59ae6c46c8d1bc3e1floxifmafia.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\20240816bed82ac6be5915a59ae6c46c8d1bc3e1floxifmafia.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\20240816bed82ac6be5915a59ae6c46c8d1bc3e1floxifmafia.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\20240816bed82ac6be5915a59ae6c46c8d1bc3e1floxifmafia.exe

"C:\Users\Admin\AppData\Local\Temp\20240816bed82ac6be5915a59ae6c46c8d1bc3e1floxifmafia.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 g.bing.com udp
US 204.79.197.237:443 g.bing.com tcp
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 237.197.79.204.in-addr.arpa udp
US 8.8.8.8:53 5isohu.com udp
US 8.8.8.8:53 www.aieov.com udp
US 45.33.2.79:80 www.aieov.com tcp
US 8.8.8.8:53 73.144.22.2.in-addr.arpa udp
US 8.8.8.8:53 149.220.183.52.in-addr.arpa udp
US 8.8.8.8:53 23.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 79.2.33.45.in-addr.arpa udp
US 8.8.8.8:53 5isohu.com udp
US 45.33.2.79:80 www.aieov.com tcp
US 8.8.8.8:53 209.205.72.20.in-addr.arpa udp
US 8.8.8.8:53 26.165.165.52.in-addr.arpa udp
US 8.8.8.8:53 206.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 18.134.221.88.in-addr.arpa udp
US 8.8.8.8:53 81.144.22.2.in-addr.arpa udp
US 8.8.8.8:53 88.156.103.20.in-addr.arpa udp
US 8.8.8.8:53 14.227.111.52.in-addr.arpa udp
US 8.8.8.8:53 tse1.mm.bing.net udp
US 8.8.8.8:53 205.47.74.20.in-addr.arpa 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
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/2396-4-0x0000000010000000-0x0000000010030000-memory.dmp

memory/2396-6-0x0000000000B71000-0x0000000000B72000-memory.dmp

memory/2396-16-0x0000000010000000-0x0000000010030000-memory.dmp

memory/2396-14-0x0000000000B70000-0x0000000000EDA000-memory.dmp