Malware Analysis Report

2025-01-02 07:25

Sample ID 240913-ycq8ksvgmg
Target 9d65014399e082345161f274c22328e7255bc573f9502809b1e72c544ffd9be9
SHA256 9d65014399e082345161f274c22328e7255bc573f9502809b1e72c544ffd9be9
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

9d65014399e082345161f274c22328e7255bc573f9502809b1e72c544ffd9be9

Threat Level: Known bad

The file 9d65014399e082345161f274c22328e7255bc573f9502809b1e72c544ffd9be9 was found to be: Known bad.

Malicious Activity Summary

floxif backdoor discovery trojan upx

Floxif, Floodfix

Detects Floxif payload

Loads dropped DLL

ACProtect 1.3x - 1.4x DLL software

UPX packed file

Drops file in Program Files directory

Program crash

System Location Discovery: System Language Discovery

Suspicious use of AdjustPrivilegeToken

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-09-13 19:38

Signatures

N/A

Analysis: behavioral1

Detonation Overview

Submitted

2024-09-13 19:38

Reported

2024-09-13 19:41

Platform

win7-20240903-en

Max time kernel

118s

Max time network

121s

Command Line

"C:\Users\Admin\AppData\Local\Temp\9d65014399e082345161f274c22328e7255bc573f9502809b1e72c544ffd9be9.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\9d65014399e082345161f274c22328e7255bc573f9502809b1e72c544ffd9be9.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\9d65014399e082345161f274c22328e7255bc573f9502809b1e72c544ffd9be9.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\9d65014399e082345161f274c22328e7255bc573f9502809b1e72c544ffd9be9.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\9d65014399e082345161f274c22328e7255bc573f9502809b1e72c544ffd9be9.exe

"C:\Users\Admin\AppData\Local\Temp\9d65014399e082345161f274c22328e7255bc573f9502809b1e72c544ffd9be9.exe"

Network

N/A

Files

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

MD5 7574cf2c64f35161ab1292e2f532aabf
SHA1 14ba3fa927a06224dfe587014299e834def4644f
SHA256 de055a89de246e629a8694bde18af2b1605e4b9b493c7e4aef669dd67acf5085
SHA512 4db19f2d8d5bc1c7bbb812d3fa9c43b80fa22140b346d2760f090b73aed8a5177edb4bddc647a6ebd5a2db8565be5a1a36a602b0d759e38540d9a584ba5896ab

memory/1688-3-0x0000000010000000-0x0000000010030000-memory.dmp

memory/1688-5-0x0000000000B00000-0x0000000000B35000-memory.dmp

memory/1688-7-0x0000000010000000-0x0000000010030000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-09-13 19:38

Reported

2024-09-13 19:41

Platform

win10v2004-20240802-en

Max time kernel

92s

Max time network

109s

Command Line

"C:\Users\Admin\AppData\Local\Temp\9d65014399e082345161f274c22328e7255bc573f9502809b1e72c544ffd9be9.exe"

Signatures

Processes

C:\Users\Admin\AppData\Local\Temp\9d65014399e082345161f274c22328e7255bc573f9502809b1e72c544ffd9be9.exe

"C:\Users\Admin\AppData\Local\Temp\9d65014399e082345161f274c22328e7255bc573f9502809b1e72c544ffd9be9.exe"

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 428 -p 1048 -ip 1048

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 1048 -s 180

Network

Country Destination Domain Proto
US 8.8.8.8:53 28.118.140.52.in-addr.arpa udp
US 8.8.8.8:53 25.140.123.92.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 72.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 13.86.106.20.in-addr.arpa udp
US 8.8.8.8:53 26.165.165.52.in-addr.arpa udp
US 8.8.8.8:53 171.39.242.20.in-addr.arpa udp
US 8.8.8.8:53 36.56.20.217.in-addr.arpa udp
US 8.8.8.8:53 240.221.184.93.in-addr.arpa udp

Files

N/A