Malware Analysis Report

2025-06-16 02:05

Sample ID 240729-tv7aas1gqd
Target 2024-07-29_916d7fe724456e3c701e7e2ebc1b04b7_floxif_icedid
SHA256 94859d8fc14aa9d6422e6336ef3f05b3e70e08a7c7c63c79d8e98bf80e67a85f
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

94859d8fc14aa9d6422e6336ef3f05b3e70e08a7c7c63c79d8e98bf80e67a85f

Threat Level: Known bad

The file 2024-07-29_916d7fe724456e3c701e7e2ebc1b04b7_floxif_icedid 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

Loads dropped DLL

ACProtect 1.3x - 1.4x DLL software

UPX packed file

Drops file in Program Files directory

System Location Discovery: System Language Discovery

Suspicious behavior: EnumeratesProcesses

Suspicious use of AdjustPrivilegeToken

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-07-29 16:23

Signatures

N/A

Analysis: behavioral1

Detonation Overview

Submitted

2024-07-29 16:23

Reported

2024-07-29 16:26

Platform

win7-20240704-en

Max time kernel

120s

Max time network

123s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2024-07-29_916d7fe724456e3c701e7e2ebc1b04b7_floxif_icedid.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\2024-07-29_916d7fe724456e3c701e7e2ebc1b04b7_floxif_icedid.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\2024-07-29_916d7fe724456e3c701e7e2ebc1b04b7_floxif_icedid.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\2024-07-29_916d7fe724456e3c701e7e2ebc1b04b7_floxif_icedid.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\2024-07-29_916d7fe724456e3c701e7e2ebc1b04b7_floxif_icedid.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\2024-07-29_916d7fe724456e3c701e7e2ebc1b04b7_floxif_icedid.exe

"C:\Users\Admin\AppData\Local\Temp\2024-07-29_916d7fe724456e3c701e7e2ebc1b04b7_floxif_icedid.exe"

Network

N/A

Files

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

MD5 7574cf2c64f35161ab1292e2f532aabf
SHA1 14ba3fa927a06224dfe587014299e834def4644f
SHA256 de055a89de246e629a8694bde18af2b1605e4b9b493c7e4aef669dd67acf5085
SHA512 4db19f2d8d5bc1c7bbb812d3fa9c43b80fa22140b346d2760f090b73aed8a5177edb4bddc647a6ebd5a2db8565be5a1a36a602b0d759e38540d9a584ba5896ab

memory/1824-3-0x0000000010000000-0x0000000010030000-memory.dmp

memory/1824-5-0x000000000040B000-0x000000000040E000-memory.dmp

memory/1824-7-0x0000000010000000-0x0000000010030000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-07-29 16:23

Reported

2024-07-29 16:26

Platform

win10v2004-20240709-en

Max time kernel

94s

Max time network

130s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2024-07-29_916d7fe724456e3c701e7e2ebc1b04b7_floxif_icedid.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\2024-07-29_916d7fe724456e3c701e7e2ebc1b04b7_floxif_icedid.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\2024-07-29_916d7fe724456e3c701e7e2ebc1b04b7_floxif_icedid.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\2024-07-29_916d7fe724456e3c701e7e2ebc1b04b7_floxif_icedid.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\2024-07-29_916d7fe724456e3c701e7e2ebc1b04b7_floxif_icedid.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\2024-07-29_916d7fe724456e3c701e7e2ebc1b04b7_floxif_icedid.exe

"C:\Users\Admin\AppData\Local\Temp\2024-07-29_916d7fe724456e3c701e7e2ebc1b04b7_floxif_icedid.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 228.249.119.40.in-addr.arpa udp
US 8.8.8.8:53 23.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 25.140.123.92.in-addr.arpa udp
US 8.8.8.8:53 26.35.223.20.in-addr.arpa udp
US 8.8.8.8:53 133.211.185.52.in-addr.arpa udp
US 8.8.8.8:53 183.59.114.20.in-addr.arpa udp
US 8.8.8.8:53 15.164.165.52.in-addr.arpa udp
US 8.8.8.8:53 217.135.221.88.in-addr.arpa udp
US 8.8.8.8:53 tse1.mm.bing.net udp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 8.8.8.8:53 55.36.223.20.in-addr.arpa udp
US 8.8.8.8:53 81.144.22.2.in-addr.arpa udp
US 8.8.8.8:53 23.236.111.52.in-addr.arpa udp

Files

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

MD5 7574cf2c64f35161ab1292e2f532aabf
SHA1 14ba3fa927a06224dfe587014299e834def4644f
SHA256 de055a89de246e629a8694bde18af2b1605e4b9b493c7e4aef669dd67acf5085
SHA512 4db19f2d8d5bc1c7bbb812d3fa9c43b80fa22140b346d2760f090b73aed8a5177edb4bddc647a6ebd5a2db8565be5a1a36a602b0d759e38540d9a584ba5896ab

memory/3332-4-0x0000000010000000-0x0000000010030000-memory.dmp

memory/3332-6-0x000000000040B000-0x000000000040E000-memory.dmp

memory/3332-7-0x0000000010000000-0x0000000010030000-memory.dmp