Malware Analysis Report

2024-12-08 02:37

Sample ID 240913-psaq4a1gka
Target 2024-09-13_12cc44ed02a82002775bbef8ea6c854f_floxif_mafia
SHA256 85c2bc15f52bcba4ed42a78119d414c2b526454c8bdab938dafb3ebf75391e25
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

85c2bc15f52bcba4ed42a78119d414c2b526454c8bdab938dafb3ebf75391e25

Threat Level: Known bad

The file 2024-09-13_12cc44ed02a82002775bbef8ea6c854f_floxif_mafia 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

ACProtect 1.3x - 1.4x DLL software

UPX packed file

Executes dropped EXE

Loads dropped DLL

Enumerates connected drives

Drops file in Program Files directory

System Location Discovery: System Language Discovery

Suspicious use of SetWindowsHookEx

Suspicious use of AdjustPrivilegeToken

Suspicious behavior: EnumeratesProcesses

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-09-13 12:35

Signatures

N/A

Analysis: behavioral1

Detonation Overview

Submitted

2024-09-13 12:35

Reported

2024-09-13 12:37

Platform

win7-20240708-en

Max time kernel

120s

Max time network

121s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2024-09-13_12cc44ed02a82002775bbef8ea6c854f_floxif_mafia.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\2024-09-13_12cc44ed02a82002775bbef8ea6c854f_floxif_mafia.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\2024-09-13_12cc44ed02a82002775bbef8ea6c854f_floxif_mafia.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\2024-09-13_12cc44ed02a82002775bbef8ea6c854f_floxif_mafia.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\2024-09-13_12cc44ed02a82002775bbef8ea6c854f_floxif_mafia.exe

"C:\Users\Admin\AppData\Local\Temp\2024-09-13_12cc44ed02a82002775bbef8ea6c854f_floxif_mafia.exe"

Network

N/A

Files

memory/1732-3-0x0000000010000000-0x0000000010030000-memory.dmp

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

MD5 7574cf2c64f35161ab1292e2f532aabf
SHA1 14ba3fa927a06224dfe587014299e834def4644f
SHA256 de055a89de246e629a8694bde18af2b1605e4b9b493c7e4aef669dd67acf5085
SHA512 4db19f2d8d5bc1c7bbb812d3fa9c43b80fa22140b346d2760f090b73aed8a5177edb4bddc647a6ebd5a2db8565be5a1a36a602b0d759e38540d9a584ba5896ab

C:\Users\Admin\AppData\Local\Temp\jds259438180.tmp\2024-09-13_12cc44ed02a82002775bbef8ea6c854f_floxif_mafia.exe

MD5 2ae766974ba27233b9a3875bc1f2ce65
SHA1 6b93e73130fb70c1abf199768fef983466827bbc
SHA256 acf5e22c4b1a98dc889fe2ad25626ea6fb8cce66edf1c2a4773ad4742f71203c
SHA512 d579d3d14857365cf1f2cf4d7d9f29f47a4dd071d61b4dd4c1310ae2864ea2671d6d55042e49ba57600b936420f09feb3d3005047bdc317dee488ee187026b7a

\Users\Admin\AppData\Local\Temp\jds259438180.tmp\2024-09-13_12cc44ed02a82002775bbef8ea6c854f_floxif_mafia.exe.tmp

MD5 e43a3d239eb4400dd94d18ea0590b672
SHA1 a1e214e4e3b96b8d1bc8eb63559218e2cff648e6
SHA256 f6f740a3f5c91bdd70fa15808a9e2ddd7f962a3b3199c7e4e214eda2bad7eff6
SHA512 b65356f88d28ade516fd9cda29b562ff06328becc41e786c4853083ec34ee748bb19616fcbd9dbda95336bb7ca07ae55a59a8cbb425894436e34d978993bbcac

memory/1732-23-0x0000000010000000-0x0000000010030000-memory.dmp

memory/1732-21-0x0000000000D10000-0x0000000000EDF000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-09-13 12:35

Reported

2024-09-13 12:37

Platform

win10v2004-20240802-en

Max time kernel

146s

Max time network

147s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2024-09-13_12cc44ed02a82002775bbef8ea6c854f_floxif_mafia.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
N/A N/A N/A N/A
N/A N/A N/A N/A
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\2024-09-13_12cc44ed02a82002775bbef8ea6c854f_floxif_mafia.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\2024-09-13_12cc44ed02a82002775bbef8ea6c854f_floxif_mafia.exe N/A
File created \??\c:\program files\common files\system\symsrv.dll.000 C:\Users\Admin\AppData\Local\Temp\2024-09-13_12cc44ed02a82002775bbef8ea6c854f_floxif_mafia.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\2024-09-13_12cc44ed02a82002775bbef8ea6c854f_floxif_mafia.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\jds240616015.tmp\2024-09-13_12cc44ed02a82002775bbef8ea6c854f_floxif_mafia.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\2024-09-13_12cc44ed02a82002775bbef8ea6c854f_floxif_mafia.exe

"C:\Users\Admin\AppData\Local\Temp\2024-09-13_12cc44ed02a82002775bbef8ea6c854f_floxif_mafia.exe"

C:\Users\Admin\AppData\Local\Temp\jds240616015.tmp\2024-09-13_12cc44ed02a82002775bbef8ea6c854f_floxif_mafia.exe

"C:\Users\Admin\AppData\Local\Temp\jds240616015.tmp\2024-09-13_12cc44ed02a82002775bbef8ea6c854f_floxif_mafia.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 97.17.167.52.in-addr.arpa udp
US 8.8.8.8:53 javadl-esd-secure.oracle.com udp
GB 104.103.251.196:443 javadl-esd-secure.oracle.com tcp
US 8.8.8.8:53 javadl.oracle.com udp
GB 104.103.251.196:80 javadl.oracle.com tcp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 196.251.103.104.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
GB 104.103.251.196:443 javadl.oracle.com tcp
US 8.8.8.8:53 5isohu.com udp
US 8.8.8.8:53 www.aieov.com udp
US 45.79.19.196:80 www.aieov.com tcp
US 8.8.8.8:53 sdlc-esd.oracle.com udp
GB 184.26.188.105:443 sdlc-esd.oracle.com tcp
US 8.8.8.8:53 196.19.79.45.in-addr.arpa udp
US 8.8.8.8:53 105.188.26.184.in-addr.arpa udp
US 45.79.19.196:80 www.aieov.com tcp
US 8.8.8.8:53 5isohu.com udp
US 45.79.19.196:80 www.aieov.com tcp
US 8.8.8.8:53 5isohu.com udp
US 8.8.8.8:53 133.211.185.52.in-addr.arpa udp
US 45.79.19.196:80 www.aieov.com tcp
US 8.8.8.8:53 5isohu.com udp
US 45.79.19.196:80 www.aieov.com tcp
US 8.8.8.8:53 5isohu.com udp
US 45.79.19.196:80 www.aieov.com tcp
US 8.8.8.8:53 183.59.114.20.in-addr.arpa udp
US 8.8.8.8:53 18.31.95.13.in-addr.arpa udp
US 8.8.8.8:53 107.12.20.2.in-addr.arpa udp
US 8.8.8.8:53 172.214.232.199.in-addr.arpa udp
US 8.8.8.8:53 13.227.111.52.in-addr.arpa udp
US 8.8.8.8:53 5isohu.com udp
US 45.79.19.196:80 www.aieov.com tcp

Files

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

MD5 7574cf2c64f35161ab1292e2f532aabf
SHA1 14ba3fa927a06224dfe587014299e834def4644f
SHA256 de055a89de246e629a8694bde18af2b1605e4b9b493c7e4aef669dd67acf5085
SHA512 4db19f2d8d5bc1c7bbb812d3fa9c43b80fa22140b346d2760f090b73aed8a5177edb4bddc647a6ebd5a2db8565be5a1a36a602b0d759e38540d9a584ba5896ab

memory/4856-4-0x0000000010000000-0x0000000010030000-memory.dmp

memory/4856-6-0x0000000000921000-0x0000000000922000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\jds240616015.tmp\2024-09-13_12cc44ed02a82002775bbef8ea6c854f_floxif_mafia.exe

MD5 2ae766974ba27233b9a3875bc1f2ce65
SHA1 6b93e73130fb70c1abf199768fef983466827bbc
SHA256 acf5e22c4b1a98dc889fe2ad25626ea6fb8cce66edf1c2a4773ad4742f71203c
SHA512 d579d3d14857365cf1f2cf4d7d9f29f47a4dd071d61b4dd4c1310ae2864ea2671d6d55042e49ba57600b936420f09feb3d3005047bdc317dee488ee187026b7a

memory/2660-18-0x0000000010000000-0x0000000010030000-memory.dmp

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

MD5 488650bf8f481d61acd832eac4641d5e
SHA1 6167c5b40074d0e5d8e32af9ec44200bc571c483
SHA256 9db1a179ba8ccc7bd33c364ee6cb6cd8268210bc3517262de547d755d41a6bf4
SHA512 1679b397fee0b6a941b101fc02d89ac086c9553a99dbd8f41799391321993a17bc52a5035613d2f4069f9364dd2eb2b6c958eb6c82cc217b1939139e7b32241d

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

MD5 23e767f1b971e723e5373d2c1c4ccdc2
SHA1 8a40c5395a84ec8d81ec829f50b3c016f53dddf6
SHA256 09e3b62f245d750cf7c2d82b23adcffcf8478029789d2dc38692b58f4c0fa87b
SHA512 6d98f4fd3fd43fa4a598a1d29af8400952f187466f14c5bfa2f5fb2ec4fcb020a63b21fff88bdde10b3152e7cb54fb2e80232266f96c4d4a6cb210b8d5a62dd2

C:\Users\Admin\AppData\Local\Temp\jds240616015.tmp\2024-09-13_12cc44ed02a82002775bbef8ea6c854f_floxif_mafia.exe.tmp

MD5 ad868e6f7c656c8c79d1bfafcd181e3c
SHA1 c7da9799c459e30284128c891ad313ece7bfec06
SHA256 0063c0913567472bf88081af04fe90f7388d26fdfc39a7ccb06dd713b0c9e071
SHA512 25825f6519e63607192a774839fcb8d14c816eb795cf2373ae58f010266499ff67a5c18bb633804fefab8dd5501828ca432444215fed7b341fb248bc38cf3336

memory/4856-131-0x0000000010000000-0x0000000010030000-memory.dmp

memory/4856-132-0x0000000000920000-0x0000000000AEF000-memory.dmp

memory/2660-134-0x00000000006E0000-0x0000000000875000-memory.dmp

memory/2660-136-0x0000000010000000-0x0000000010030000-memory.dmp

C:\Program Files\Common Files\System\symsrv.dll.000

MD5 1130c911bf5db4b8f7cf9b6f4b457623
SHA1 48e734c4bc1a8b5399bff4954e54b268bde9d54c
SHA256 eba08cc8182f379392a97f542b350ea0dbbe5e4009472f35af20e3d857eafdf1
SHA512 94e2511ef2c53494c2aff0960266491ffc0e54e75185427d1ccedae27c286992c754ca94cbb0c9ea36e3f04cd4eb7f032c551cf2d4b309f292906303f1a75fa0

memory/4856-142-0x0000000010000000-0x0000000010030000-memory.dmp

memory/4856-150-0x0000000010000000-0x0000000010030000-memory.dmp

memory/4856-174-0x0000000010000000-0x0000000010030000-memory.dmp