floxif | 848d86ed20a2b2204460b7355a333f2d3b4f6fbe28802dc6a550b0408d484fca

Analysis

max time kernel
15s
max time network
20s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
12/10/2024, 22:57

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General

Target

848d86ed20a2b2204460b7355a333f2d3b4f6fbe28802dc6a550b0408d484fcaN.dll
Size

420KB
MD5

07b3e6e44b64ac317c596ccc13620f00
SHA1

2f1be9aac388511f32e381b978306da1b40e22bf
SHA256

848d86ed20a2b2204460b7355a333f2d3b4f6fbe28802dc6a550b0408d484fca
SHA512

c332e67303f4671400507331c7bf0fc15ef25666bfc1bf187146741f37b74d14480ccc0b41d33daa074b799eb05da17346b9f3e1394c60e76bf7275feb0236f5
SSDEEP

6144:ChXWTH0h5DYwIlotHMhnCOxme+uswQAf6aIilBV+UdvrEFp7hKG:8WYNYwRHMhnYusyVFlBjvrEH75

Score

10^/10

floxif backdoor discovery persistence privilege_escalation trojan upx

Malware Config

Signatures

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
behavioral1/files/0x000900000001227e-1.dat	floxif

Event Triggered Execution: AppInit DLLs 1 TTPs
Adversaries may establish persistence and/or elevate privileges by executing malicious content triggered by AppInit DLLs loaded into processes.
persistence privilege_escalation

AppInit DLLs
T1546.010

ACProtect 1.3x - 1.4x DLL software 1 IoCs

Detects file using ACProtect software.

resource	yara_rule
behavioral1/files/0x000900000001227e-1.dat	acprotect

Loads dropped DLL 1 IoCs

pid	Process
2008	regsvr32.exe

UPX packed file 3 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2008-3-0x0000000010000000-0x0000000010030000-memory.dmp	upx
behavioral1/files/0x000900000001227e-1.dat	upx
behavioral1/memory/2008-6-0x0000000010000000-0x0000000010030000-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\Interface\{7950DDDE-8ABB-49F8-9917-4FEEBA805318}\TypeLib\Version = "1.0"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\AlphaImageControl.aicAlphaImage\Clsid	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{E4D46A8C-9735-42BD-9FAB-5BF03CCC7287}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{7950DDDE-8ABB-49F8-9917-4FEEBA805318}\TypeLib	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{7950DDDE-8ABB-49F8-9917-4FEEBA805318}\TypeLib\Version = "1.0"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\AlphaImageControl.ICrossComm	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{6FDBBC21-E399-4542-B4CE-86326E1F0727}\Control\	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{B4CA09FD-4933-43C8-86C8-2595EC4AB861}\ = "_aicAlphaImage"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{E4D46A8C-9735-42BD-9FAB-5BF03CCC7287}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{7950DDDE-8ABB-49F8-9917-4FEEBA805318}\TypeLib	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{ACA8F649-89FA-410E-B204-BAF4825BAFB8}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{B4CA09FD-4933-43C8-86C8-2595EC4AB861}\ProxyStubClsid32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{B53D1D90-31C9-4AAC-B1FF-6F56B7C81C31}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{7950DDDE-8ABB-49F8-9917-4FEEBA805318}\ = "aicAlphaImage"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{B53D1D90-31C9-4AAC-B1FF-6F56B7C81C31}\TypeLib	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\AlphaImageControl.ICrossComm\Clsid	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{B53D1D90-31C9-4AAC-B1FF-6F56B7C81C31}\ = "ICrossComm"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{BADB1512-759C-4792-A18A-DD6BDC4E1991}\InprocServer32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{7950DDDE-8ABB-49F8-9917-4FEEBA805318}\TypeLib\ = "{9156C8F9-B397-4DEF-8AC5-5966221A134A}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{ACA8F649-89FA-410E-B204-BAF4825BAFB8}\TypeLib\ = "{9156C8F9-B397-4DEF-8AC5-5966221A134A}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{ACA8F649-89FA-410E-B204-BAF4825BAFB8}\ProgID	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{B4CA09FD-4933-43C8-86C8-2595EC4AB861}\ = "aicAlphaImage"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TYPELIB\{9156C8F9-B397-4DEF-8AC5-5966221A134A}\1.0\FLAGS	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{E4D46A8C-9735-42BD-9FAB-5BF03CCC7287}\TypeLib\ = "{9156C8F9-B397-4DEF-8AC5-5966221A134A}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{ACA8F649-89FA-410E-B204-BAF4825BAFB8}\TypeLib	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{ACA8F649-89FA-410E-B204-BAF4825BAFB8}\VERSION	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{B53D1D90-31C9-4AAC-B1FF-6F56B7C81C31}\ProxyStubClsid32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{7950DDDE-8ABB-49F8-9917-4FEEBA805318}\ProxyStubClsid32\ = "{00020420-0000-0000-C000-000000000046}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{6FDBBC21-E399-4542-B4CE-86326E1F0727}\TypeLib	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{E4D46A8C-9735-42BD-9FAB-5BF03CCC7287}\ = "_ppgSourceImage"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{7950DDDE-8ABB-49F8-9917-4FEEBA805318}\ProxyStubClsid32\ = "{00020420-0000-0000-C000-000000000046}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{B4CA09FD-4933-43C8-86C8-2595EC4AB861}\ = "_aicAlphaImage"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TYPELIB\{9156C8F9-B397-4DEF-8AC5-5966221A134A}\1.0\HELPDIR	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{B4CA09FD-4933-43C8-86C8-2595EC4AB861}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{6FDBBC21-E399-4542-B4CE-86326E1F0727}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\848d86ed20a2b2204460b7355a333f2d3b4f6fbe28802dc6a550b0408d484fcaN.dll"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TYPELIB\{9156C8F9-B397-4DEF-8AC5-5966221A134A}\1.0	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{B53D1D90-31C9-4AAC-B1FF-6F56B7C81C31}\ProxyStubClsid\ = "{00020424-0000-0000-C000-000000000046}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{B53D1D90-31C9-4AAC-B1FF-6F56B7C81C31}\ = "_ICrossComm"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{B53D1D90-31C9-4AAC-B1FF-6F56B7C81C31}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{B53D1D90-31C9-4AAC-B1FF-6F56B7C81C31}\ = "_ICrossComm"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{7950DDDE-8ABB-49F8-9917-4FEEBA805318}\ = "__aicAlphaImage"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{E4D46A8C-9735-42BD-9FAB-5BF03CCC7287}\TypeLib	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{B53D1D90-31C9-4AAC-B1FF-6F56B7C81C31}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{E4D46A8C-9735-42BD-9FAB-5BF03CCC7287}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{7950DDDE-8ABB-49F8-9917-4FEEBA805318}\TypeLib\ = "{9156C8F9-B397-4DEF-8AC5-5966221A134A}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{6FDBBC21-E399-4542-B4CE-86326E1F0727}\InprocServer32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{E4D46A8C-9735-42BD-9FAB-5BF03CCC7287}\TypeLib\ = "{9156C8F9-B397-4DEF-8AC5-5966221A134A}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{B53D1D90-31C9-4AAC-B1FF-6F56B7C81C31}\TypeLib\ = "{9156C8F9-B397-4DEF-8AC5-5966221A134A}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{7950DDDE-8ABB-49F8-9917-4FEEBA805318}\ProxyStubClsid32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{6FDBBC21-E399-4542-B4CE-86326E1F0727}\TypeLib\ = "{9156C8F9-B397-4DEF-8AC5-5966221A134A}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{6FDBBC21-E399-4542-B4CE-86326E1F0727}\VERSION	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{7950DDDE-8ABB-49F8-9917-4FEEBA805318}\ProxyStubClsid\ = "{00020420-0000-0000-C000-000000000046}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TYPELIB\{9156C8F9-B397-4DEF-8AC5-5966221A134A}\1.0\0\win32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{B4CA09FD-4933-43C8-86C8-2595EC4AB861}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{6FDBBC21-E399-4542-B4CE-86326E1F0727}\MiscStatus\ = "0"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{6FDBBC21-E399-4542-B4CE-86326E1F0727}\MiscStatus\1	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{B4CA09FD-4933-43C8-86C8-2595EC4AB861}\TypeLib	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{6FDBBC21-E399-4542-B4CE-86326E1F0727}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{ACA8F649-89FA-410E-B204-BAF4825BAFB8}\VERSION\ = "1.0"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{ACA8F649-89FA-410E-B204-BAF4825BAFB8}\Implemented Categories\{40FC6ED5-2438-11CF-A3DB-080036F12502}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{E4D46A8C-9735-42BD-9FAB-5BF03CCC7287}\ProxyStubClsid32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{B53D1D90-31C9-4AAC-B1FF-6F56B7C81C31}\TypeLib\Version = "1.0"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{6FDBBC21-E399-4542-B4CE-86326E1F0727}\ProgID	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{6FDBBC21-E399-4542-B4CE-86326E1F0727}\ProgID\ = "AlphaImageControl.aicAlphaImage"	regsvr32.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2008	regsvr32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 108 wrote to memory of 2008	108	regsvr32.exe	29
PID 108 wrote to memory of 2008	108	regsvr32.exe	29
PID 108 wrote to memory of 2008	108	regsvr32.exe	29
PID 108 wrote to memory of 2008	108	regsvr32.exe	29
PID 108 wrote to memory of 2008	108	regsvr32.exe	29
PID 108 wrote to memory of 2008	108	regsvr32.exe	29
PID 108 wrote to memory of 2008	108	regsvr32.exe	29

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\848d86ed20a2b2204460b7355a333f2d3b4f6fbe28802dc6a550b0408d484fcaN.dll
1⤵
- Suspicious use of WriteProcessMemory
PID:108
- C:\Windows\SysWOW64\regsvr32.exe
  /s C:\Users\Admin\AppData\Local\Temp\848d86ed20a2b2204460b7355a333f2d3b4f6fbe28802dc6a550b0408d484fcaN.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:2008

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Event Triggered Execution

T1546

AppInit DLLs

T1546.010

Privilege Escalation

Event Triggered Execution

T1546

AppInit DLLs

T1546.010

Defense Evasion

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

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

Filesize
67KB

MD5
7574cf2c64f35161ab1292e2f532aabf

SHA1
14ba3fa927a06224dfe587014299e834def4644f

SHA256
de055a89de246e629a8694bde18af2b1605e4b9b493c7e4aef669dd67acf5085

SHA512
4db19f2d8d5bc1c7bbb812d3fa9c43b80fa22140b346d2760f090b73aed8a5177edb4bddc647a6ebd5a2db8565be5a1a36a602b0d759e38540d9a584ba5896ab

Download Submit
memory/2008-3-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download
memory/2008-6-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download