Malware Analysis Report

2025-01-02 07:25

Sample ID 240914-fhpb3axdrk
Target 0a0001eaf7a533c3f3d81627eacb9f00N
SHA256 467f7b81e6ca837a3bd6256337cecc0041081356321f688d60fe718abf8146cc
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

467f7b81e6ca837a3bd6256337cecc0041081356321f688d60fe718abf8146cc

Threat Level: Known bad

The file 0a0001eaf7a533c3f3d81627eacb9f00N 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

Loads dropped DLL

UPX packed file

Drops file in Program Files directory

Program crash

System Location Discovery: System Language Discovery

Suspicious use of AdjustPrivilegeToken

Suspicious behavior: EnumeratesProcesses

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-09-14 04:52

Signatures

N/A

Analysis: behavioral1

Detonation Overview

Submitted

2024-09-14 04:52

Reported

2024-09-14 04:54

Platform

win7-20240708-en

Max time kernel

118s

Max time network

119s

Command Line

"C:\Users\Admin\AppData\Local\Temp\0a0001eaf7a533c3f3d81627eacb9f00N.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\0a0001eaf7a533c3f3d81627eacb9f00N.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\0a0001eaf7a533c3f3d81627eacb9f00N.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\0a0001eaf7a533c3f3d81627eacb9f00N.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\0a0001eaf7a533c3f3d81627eacb9f00N.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\0a0001eaf7a533c3f3d81627eacb9f00N.exe

"C:\Users\Admin\AppData\Local\Temp\0a0001eaf7a533c3f3d81627eacb9f00N.exe"

Network

N/A

Files

memory/388-0-0x0000000000AFE000-0x0000000000AFF000-memory.dmp

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

MD5 7574cf2c64f35161ab1292e2f532aabf
SHA1 14ba3fa927a06224dfe587014299e834def4644f
SHA256 de055a89de246e629a8694bde18af2b1605e4b9b493c7e4aef669dd67acf5085
SHA512 4db19f2d8d5bc1c7bbb812d3fa9c43b80fa22140b346d2760f090b73aed8a5177edb4bddc647a6ebd5a2db8565be5a1a36a602b0d759e38540d9a584ba5896ab

memory/388-4-0x0000000010000000-0x0000000010030000-memory.dmp

memory/388-9-0x0000000000AB0000-0x0000000000B9E000-memory.dmp

memory/388-11-0x0000000010000000-0x0000000010030000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-09-14 04:52

Reported

2024-09-14 04:54

Platform

win10v2004-20240802-en

Max time kernel

95s

Max time network

99s

Command Line

"C:\Users\Admin\AppData\Local\Temp\0a0001eaf7a533c3f3d81627eacb9f00N.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\0a0001eaf7a533c3f3d81627eacb9f00N.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\0a0001eaf7a533c3f3d81627eacb9f00N.exe N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\0a0001eaf7a533c3f3d81627eacb9f00N.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\0a0001eaf7a533c3f3d81627eacb9f00N.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\0a0001eaf7a533c3f3d81627eacb9f00N.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\0a0001eaf7a533c3f3d81627eacb9f00N.exe

"C:\Users\Admin\AppData\Local\Temp\0a0001eaf7a533c3f3d81627eacb9f00N.exe"

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 416 -p 832 -ip 832

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 832 -s 1284

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 532 -p 832 -ip 832

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 832 -s 1292

Network

Country Destination Domain Proto
US 8.8.8.8:53 232.168.11.51.in-addr.arpa udp
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 25.140.123.92.in-addr.arpa udp
US 8.8.8.8:53 67.31.126.40.in-addr.arpa udp
US 8.8.8.8:53 133.211.185.52.in-addr.arpa udp
US 8.8.8.8:53 26.165.165.52.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 8.8.8.8:53 240.143.123.92.in-addr.arpa udp
US 8.8.8.8:53 48.229.111.52.in-addr.arpa udp

Files

memory/832-1-0x0000000000CCE000-0x0000000000CCF000-memory.dmp

memory/832-5-0x0000000010000000-0x0000000010030000-memory.dmp

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

MD5 7574cf2c64f35161ab1292e2f532aabf
SHA1 14ba3fa927a06224dfe587014299e834def4644f
SHA256 de055a89de246e629a8694bde18af2b1605e4b9b493c7e4aef669dd67acf5085
SHA512 4db19f2d8d5bc1c7bbb812d3fa9c43b80fa22140b346d2760f090b73aed8a5177edb4bddc647a6ebd5a2db8565be5a1a36a602b0d759e38540d9a584ba5896ab

memory/832-7-0x0000000000C80000-0x0000000000D6E000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\jusched.log

MD5 befb14777e65cc1471e8033f626c3918
SHA1 5c188e9f352195d8e4ec98ccfd0b383ba31c47f7
SHA256 7ee003496c7b442fbaa7ab958c0a431f4e7bd2cf3c3b9aeca52e9e3997f63f31
SHA512 e4fbd1e2ae376f999e01af60c0f789fa528bb5e4450cc36d6426b849fb5ae95539b5e6b566d7270ad6a4bb3f72c4a85b787af1c8d3cd59c62fc7a6e6b7bcc82e

memory/832-19-0x0000000000C80000-0x0000000000D6E000-memory.dmp

memory/832-21-0x0000000010000000-0x0000000010030000-memory.dmp