floxif | 7a6e0962ad4b187b612be7f8aa1b8f01defefcb816d3ca2818a0e11073615837

Analysis

max time kernel
148s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
24-12-2024 06:47

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

7a6e0962ad4b187b612be7f8aa1b8f01defefcb816d3ca2818a0e11073615837.dll
Size

378KB
MD5

4a2252af7b4ec6841d63cf58c642cae7
SHA1

472e1174a3cc7510e35a8eac919cce080c76bdb7
SHA256

7a6e0962ad4b187b612be7f8aa1b8f01defefcb816d3ca2818a0e11073615837
SHA512

af9c3b2648ef1b1210024819a233d91ee32710f2b435269966e40fd51815fff09b797dc078f984554112d2a0fbb1d9f40a0d892da1ae34827ca4a4bfb3ae423d
SSDEEP

6144:vBRaw0Wg0MVyoWTvAJPvKbc4bsx/GGbT6gbIVB7JpC/soBV+UdvrEFp7hKk:bux6OPv0c4b8hTTKpC/1BjvrEH7b

Score

10^/10

floxif backdoor discovery trojan upx

Malware Config

Signatures

Floxif family
floxif
Floxif, Floodfix
Floxif aka FloodFix is a file-changing trojan and backdoor written in C++.
backdoor trojan floxif

Detects Floxif payload 1 IoCs

backdoor

resource	yara_rule
behavioral2/files/0x000a000000023bcd-3.dat	floxif

ACProtect 1.3x - 1.4x DLL software 1 IoCs

Detects file using ACProtect software.

resource	yara_rule
behavioral2/files/0x000a000000023bcd-3.dat	acprotect

Loads dropped DLL 2 IoCs

pid	Process
3412	regsvr32.exe
3412	regsvr32.exe

UPX packed file 4 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral2/files/0x000a000000023bcd-3.dat	upx
behavioral2/memory/3412-7-0x0000000000D00000-0x0000000000D30000-memory.dmp	upx
behavioral2/memory/3412-6-0x0000000000D00000-0x0000000000D30000-memory.dmp	upx
behavioral2/memory/3412-10-0x0000000000D00000-0x0000000000D30000-memory.dmp	upx

Drops file in Program Files directory 1 IoCs

description	ioc	Process
File created	C:\Program Files\Common Files\System\symsrv.dll	regsvr32.exe

System Location Discovery: System Language Discovery 1 TTPs 1 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	regsvr32.exe

Modifies registry class 64 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{50040650-CA6A-4FE1-B858-A6775FF6BC8C}\TypeLib\ = "{EA0270B2-E6A3-4A71-864D-653B71FD913D}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{EA0270B2-E6A3-4A71-864D-653B71FD913D}\1.0\FLAGS	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{CF63C75C-A4D3-40AD-8A21-2CEF0BC2EA99}\ = "_IFTRemoteEvents"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{16BF9059-332F-412D-A2BD-F1BB742506A3}\ = "IFTRemote"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{16BF9059-332F-412D-A2BD-F1BB742506A3}\TypeLib\Version = "1.0"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\NSPFTRemote.FTRemote.ASP\CLSID\ = "{50040650-CA6A-4FE1-B858-A6775FF6BC8C}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{50040650-CA6A-4FE1-B858-A6775FF6BC8C}\InprocServer32\ThreadingModel = "Apartment"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{16BF9059-332F-412D-A2BD-F1BB742506A3}\TypeLib	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{50040650-CA6A-4FE1-B858-A6775FF6BC8C}\Version\ = "1.0"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{EA0270B2-E6A3-4A71-864D-653B71FD913D}\1.0\ = "NSPFTRemote 1.0 Type Library"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{CF63C75C-A4D3-40AD-8A21-2CEF0BC2EA99}\TypeLib\Version = "1.0"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{CF63C75C-A4D3-40AD-8A21-2CEF0BC2EA99}\TypeLib	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{16BF9059-332F-412D-A2BD-F1BB742506A3}\TypeLib\ = "{EA0270B2-E6A3-4A71-864D-653B71FD913D}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\AppID\NSPFTRemote.DLL	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{50040650-CA6A-4FE1-B858-A6775FF6BC8C}\ = "FTRemote.ASP Class"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{50040650-CA6A-4FE1-B858-A6775FF6BC8C}\ToolboxBitmap32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\7a6e0962ad4b187b612be7f8aa1b8f01defefcb816d3ca2818a0e11073615837.dll, 102"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{16BF9059-332F-412D-A2BD-F1BB742506A3}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{16BF9059-332F-412D-A2BD-F1BB742506A3}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{16BF9059-332F-412D-A2BD-F1BB742506A3}\ProxyStubClsid32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{16BF9059-332F-412D-A2BD-F1BB742506A3}\TypeLib\ = "{EA0270B2-E6A3-4A71-864D-653B71FD913D}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\NSPFTRemote.FTRemote.ASP\ = "FTRemote.ASP Class"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{50040650-CA6A-4FE1-B858-A6775FF6BC8C}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\7a6e0962ad4b187b612be7f8aa1b8f01defefcb816d3ca2818a0e11073615837.dll"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{EA0270B2-E6A3-4A71-864D-653B71FD913D}\1.0	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{CF63C75C-A4D3-40AD-8A21-2CEF0BC2EA99}\ProxyStubClsid32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{CF63C75C-A4D3-40AD-8A21-2CEF0BC2EA99}\ProxyStubClsid32\ = "{00020420-0000-0000-C000-000000000046}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{CF63C75C-A4D3-40AD-8A21-2CEF0BC2EA99}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{16BF9059-332F-412D-A2BD-F1BB742506A3}\TypeLib	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\AppID\NSPFTRemote.DLL\AppID = "{5C8C09C0-4C8C-4f3d-8CEE-631A2B6C844D}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\NSPFTRemote.FTRemote.ASP.1	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\NSPFTRemote.FTRemote.ASP.1\ = "FTRemote.ASP Class"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\NSPFTRemote.FTRemote.ASP.1\CLSID	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{50040650-CA6A-4FE1-B858-A6775FF6BC8C}\Programmable	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{EA0270B2-E6A3-4A71-864D-653B71FD913D}\1.0\HELPDIR\ = "C:\\Users\\Admin\\AppData\\Local\\Temp"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{CF63C75C-A4D3-40AD-8A21-2CEF0BC2EA99}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\NSPFTRemote.FTRemote.ASP\CurVer\ = "NSPFTRemote.FTRemote.ASP.1"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{50040650-CA6A-4FE1-B858-A6775FF6BC8C}\ToolboxBitmap32	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{50040650-CA6A-4FE1-B858-A6775FF6BC8C}\MiscStatus	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{50040650-CA6A-4FE1-B858-A6775FF6BC8C}\TypeLib	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{CF63C75C-A4D3-40AD-8A21-2CEF0BC2EA99}\ProxyStubClsid32	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{16BF9059-332F-412D-A2BD-F1BB742506A3}\ProxyStubClsid32	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\AppID\{5C8C09C0-4C8C-4f3d-8CEE-631A2B6C844D}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{50040650-CA6A-4FE1-B858-A6775FF6BC8C}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{50040650-CA6A-4FE1-B858-A6775FF6BC8C}\AppID = "{5C8C09C0-4C8C-4f3d-8CEE-631A2B6C844D}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{50040650-CA6A-4FE1-B858-A6775FF6BC8C}\Control	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{16BF9059-332F-412D-A2BD-F1BB742506A3}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{EA0270B2-E6A3-4A71-864D-653B71FD913D}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{CF63C75C-A4D3-40AD-8A21-2CEF0BC2EA99}\ = "_IFTRemoteEvents"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{CF63C75C-A4D3-40AD-8A21-2CEF0BC2EA99}\TypeLib	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{16BF9059-332F-412D-A2BD-F1BB742506A3}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\NSPFTRemote.FTRemote.ASP.1\CLSID\ = "{50040650-CA6A-4FE1-B858-A6775FF6BC8C}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\NSPFTRemote.FTRemote.ASP\CurVer	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{50040650-CA6A-4FE1-B858-A6775FF6BC8C}\VersionIndependentProgID\ = "NSPFTRemote.FTRemote.ASP"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{EA0270B2-E6A3-4A71-864D-653B71FD913D}\1.0\FLAGS\ = "0"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{EA0270B2-E6A3-4A71-864D-653B71FD913D}\1.0\0	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{CF63C75C-A4D3-40AD-8A21-2CEF0BC2EA99}\TypeLib\Version = "1.0"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\NSPFTRemote.FTRemote.ASP	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{50040650-CA6A-4FE1-B858-A6775FF6BC8C}\ProgID\ = "NSPFTRemote.FTRemote.ASP.1"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{50040650-CA6A-4FE1-B858-A6775FF6BC8C}\VersionIndependentProgID	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{50040650-CA6A-4FE1-B858-A6775FF6BC8C}\MiscStatus\1	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{50040650-CA6A-4FE1-B858-A6775FF6BC8C}\MiscStatus\1\ = "139665"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{EA0270B2-E6A3-4A71-864D-653B71FD913D}\1.0\HELPDIR	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{CF63C75C-A4D3-40AD-8A21-2CEF0BC2EA99}\TypeLib\ = "{EA0270B2-E6A3-4A71-864D-653B71FD913D}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{50040650-CA6A-4FE1-B858-A6775FF6BC8C}\MiscStatus\ = "0"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{CF63C75C-A4D3-40AD-8A21-2CEF0BC2EA99}\ProxyStubClsid32\ = "{00020420-0000-0000-C000-000000000046}"	regsvr32.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3412	regsvr32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4164 wrote to memory of 3412	4164	regsvr32.exe	82
PID 4164 wrote to memory of 3412	4164	regsvr32.exe	82
PID 4164 wrote to memory of 3412	4164	regsvr32.exe	82

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\7a6e0962ad4b187b612be7f8aa1b8f01defefcb816d3ca2818a0e11073615837.dll
1⤵
- Suspicious use of WriteProcessMemory
PID:4164
- C:\Windows\SysWOW64\regsvr32.exe
  /s C:\Users\Admin\AppData\Local\Temp\7a6e0962ad4b187b612be7f8aa1b8f01defefcb816d3ca2818a0e11073615837.dll
  2⤵
  - Loads dropped DLL
  - Drops file in Program Files directory
  - System Location Discovery: System Language Discovery
  - Modifies registry class
  - Suspicious use of AdjustPrivilegeToken
  PID:3412

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

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

Filesize
67KB

MD5
7574cf2c64f35161ab1292e2f532aabf

SHA1
14ba3fa927a06224dfe587014299e834def4644f

SHA256
de055a89de246e629a8694bde18af2b1605e4b9b493c7e4aef669dd67acf5085

SHA512
4db19f2d8d5bc1c7bbb812d3fa9c43b80fa22140b346d2760f090b73aed8a5177edb4bddc647a6ebd5a2db8565be5a1a36a602b0d759e38540d9a584ba5896ab

Download Submit
memory/3412-7-0x0000000000D00000-0x0000000000D30000-memory.dmp

Filesize
192KB

Download
memory/3412-6-0x0000000000D00000-0x0000000000D30000-memory.dmp

Filesize
192KB

Download
memory/3412-8-0x0000000010002000-0x0000000010003000-memory.dmp

Filesize
4KB

Download
memory/3412-10-0x0000000000D00000-0x0000000000D30000-memory.dmp

Filesize
192KB

Download