floxif | 7112e6f6e8a601ab228dabb0476b87b35d235f1311ea8cc6d0e88e75e14646db

Reason

Machine shutdown

General

Target
2026-07-24_68d8e6636c8d05f08809df0784513a83_elex_floxif_glassworm_hijackloader_remcos_stop.exe
Size 3.1MB
Sample260724-wsdajstyhs
SHA256 7112e6f6e8a601ab228dabb0476b87b35d235f1311ea8cc6d0e88e75e14646db
MD5 68d8e6636c8d05f08809df0784513a83
SHA1 ef08dbdae5a887369c4dfa03a938f1e249fd6034
SHA512 934784cd5fddbe3e319ba9bf6227684359c7a601b21ab3d41f7fd111ef3e0e9be21818baf4189658475d8e6a52c3e95dfc18fcd16366ab13a47d457397fad8bb
SSDEEP 24576:xJwyrtWZANi3S8JYHYoDWLq8XsEbbjZtvFyEBQlQsSp/PlUhv+8+c+TC3OEJPrgB:TeFYHlCPbEEq+LTmOOyjEVq2uuza
TLSH
T1CDE5AF12F3E681A4E4F32AB0683F62259935BD199734C2CFA6503D0FAD317D1A934B97
MD5 SHA1 SHA512 SSDEEP TLSH

Score

10^/10

backdoor discovery floxif persistence privilege_escalation trojan upx

Malware Config

Signatures

Family: 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/0x00110000000243b9-1.dat	floxif

UPX dump on OEP (original entry point) 3 IoCs

resource	yara_rule
behavioral1/files/0x00110000000243b9-1.dat	UPX
behavioral1/memory/4656-3-0x0000000010000000-0x0000000010030000-memory.dmp	UPX
behavioral1/memory/4656-19-0x0000000010000000-0x0000000010030000-memory.dmp	UPX

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/0x00110000000243b9-1.dat	acprotect

Loads dropped DLL 1 IoCs

pid	Process
4656	2026-07-24_68d8e6636c8d05f08809df0784513a83_elex_floxif_glassworm_hijackloader_remcos_stop.exe

Enumerates connected drives 3 TTPs 1 IoCs

Attempts to read the root path of hard drives other than the default C: drive.

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

description	ioc	Process
File opened (read-only)	\??\e:	2026-07-24_68d8e6636c8d05f08809df0784513a83_elex_floxif_glassworm_hijackloader_remcos_stop.exe

UPX packed file 3 IoCs

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

upx

resource	yara_rule
behavioral1/files/0x00110000000243b9-1.dat	upx
behavioral1/memory/4656-3-0x0000000010000000-0x0000000010030000-memory.dmp	upx
behavioral1/memory/4656-19-0x0000000010000000-0x0000000010030000-memory.dmp	upx

Drops file in Program Files directory 1 IoCs

description	ioc	Process
File created	C:\Program Files\Common Files\System\symsrv.dll	2026-07-24_68d8e6636c8d05f08809df0784513a83_elex_floxif_glassworm_hijackloader_remcos_stop.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	2026-07-24_68d8e6636c8d05f08809df0784513a83_elex_floxif_glassworm_hijackloader_remcos_stop.exe

Modifies data under HKEY_USERS 15 IoCs

description	ioc	Process
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\EnableWindowColorization = "213"	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\AccentColor = "4292311040"	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationGlassAttribute = "1"	LogonUI.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Explorer\Accent\AccentPalette = a6d8ff0076b9ed00429ce3000078d700005a9e000042750000264200f7630c00	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Explorer\Accent\StartColorMenu = "4288567808"	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationColor = "3288365271"	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationColorBalance = "89"	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationAfterglow = "3288365271"	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationAfterglowBalance = "10"	LogonUI.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Explorer\Accent	LogonUI.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Themes\History	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Themes\History\AutoColor = "0"	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Explorer\Accent\AccentColorMenu = "4292311040"	LogonUI.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationBlurBalance = "1"	LogonUI.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
4656	2026-07-24_68d8e6636c8d05f08809df0784513a83_elex_floxif_glassworm_hijackloader_remcos_stop.exe
4656	2026-07-24_68d8e6636c8d05f08809df0784513a83_elex_floxif_glassworm_hijackloader_remcos_stop.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	4656	2026-07-24_68d8e6636c8d05f08809df0784513a83_elex_floxif_glassworm_hijackloader_remcos_stop.exe
Token: SeShutdownPrivilege	4656	2026-07-24_68d8e6636c8d05f08809df0784513a83_elex_floxif_glassworm_hijackloader_remcos_stop.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1264	LogonUI.exe

C:\Users\Admin\AppData\Local\Temp\2026-07-24_68d8e6636c8d05f08809df0784513a83_elex_floxif_glassworm_hijackloader_remcos_stop.exe
"C:\Users\Admin\AppData\Local\Temp\2026-07-24_68d8e6636c8d05f08809df0784513a83_elex_floxif_glassworm_hijackloader_remcos_stop.exe"
1⤵
- Loads dropped DLL
- Enumerates connected drives
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4656

C:\Windows\system32\LogonUI.exe
"LogonUI.exe" /flags:0x4 /state0:0xa3947855 /state1:0x41c64e6d
1⤵
- Modifies data under HKEY_USERS
- Suspicious use of SetWindowsHookEx
PID:1264

Network

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Event Triggered Execution

1

T1546

AppInit DLLs

1

T1546.010

Privilege Escalation

Event Triggered Execution

1

T1546

AppInit DLLs

1

T1546.010

Defense Evasion

Credential Access

Discovery

Peripheral Device Discovery

Query Registry

System Information Discovery

1

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

symsrv.dll

Path C:\Program Files\Common Files\System\symsrv.dll
Size 67KB
SHA256 de055a89de246e629a8694bde18af2b1605e4b9b493c7e4aef669dd67acf5085
MD5 7574cf2c64f35161ab1292e2f532aabf
SHA1 14ba3fa927a06224dfe587014299e834def4644f
SHA512 4db19f2d8d5bc1c7bbb812d3fa9c43b80fa22140b346d2760f090b73aed8a5177edb4bddc647a6ebd5a2db8565be5a1a36a602b0d759e38540d9a584ba5896ab
SSDEEP 1536:YjV8y93KQpFQmPLRk7G50zy/riF12jvRyo0hQk7ZL:c8y93KQjy7G55riF1cMo03V
TLSH
T17863F1372AB5807DDD210D37949F835AB771E5A76C20643FC25907D988B8DD0E3239AE
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

45013FC1230.tmp

Path C:\Users\Admin\AppData\Local\Temp\A1D26E2\45013FC1230.tmp
Size 3.0MB
SHA256 62ad82cceed22563c54cceffd86e203ac9ca0667fe89d9e01f6148dcc33d47f0
MD5 b1b318d9d23c93535fa177239094fdf2
SHA1 053456d8b2f40eae4fabb60f5f3bedacc2c21f97
SHA512 14c2dbeb4711c9613c92f8107f8cffbfc928fa2243f62de86129ce1013809eae9f284e0f3d5a8b83c0e128cb468560b5dd9889a61da591ba2c6c9ecb6f81926b
SSDEEP 24576:xJwyrtWKANi3S8JYHYoDWLq8XsEbbjZtvFyEBQlQsSp/PlUhv+8+c+TC3OEJPrgV:TBFYHlCPbEEq+LTmOOyiEVq2uuzF
TLSH
T100E5AE52F3E681A4E4F32AB0683B62269935BD059734C2CFA6503D0FAD317D1AD34B97
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

memory/4656-3-0x0000000010000000-0x0000000010030000-memory.dmp

Download

memory/4656-19-0x0000000010000000-0x0000000010030000-memory.dmp

Download

Analysis

Sharing

Errors