floxif | 897339f617ca5ae489558aeb63cf59dffe93f9dd4ba2e8909eb94849a532103d

Analysis

max time kernel
150s
max time network
153s
platform
windows11-ltsc_2024_x64
resource
win11ltsc2024-20260709-en
resource tags

arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
submitted
09/08/2026, 04:46

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General

Target
2026-08-09_ebe16a3cd4be0029d9f8620a31dbbf29_amadey_elex_floxif_rhadamanthys_smoke-loader_stop.exe
Size 488KB
Sample260809-fd23cs1ajh
SHA256 897339f617ca5ae489558aeb63cf59dffe93f9dd4ba2e8909eb94849a532103d
MD5 ebe16a3cd4be0029d9f8620a31dbbf29
SHA1 e9c4b4e13c71a6e4e4d40c14abccb58ff52f0e56
SHA512 564a0a8932bf7258d56040c230e5c66d57acf04b56516309440f52f37c0b8bd1bdee3f5149d2b7537a0e25a3a3a2b809f1451d2e1ddf4a64d044cb36278b400b
SSDEEP 12288:ZWyAXWTQYdi/zvhyKyVkKB0HaKGz1A3BjvrEH78ZPm:ZWyAX7Yacj4dqAVrEH78Z+
TLSH
T1F5B4AE10BBD9C3B6FAB32A3524F8866D15B6BD7C5B3595CBA3140A1E5C706C2EC34326
MD5 SHA1 SHA512 SSDEEP TLSH

Score

10^/10

backdoor discovery floxif 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
behavioral2/files/0x000d00000001b890-1.dat	floxif

UPX dump on OEP (original entry point) 3 IoCs

resource	yara_rule
behavioral2/files/0x000d00000001b890-1.dat	UPX
behavioral2/memory/4904-3-0x0000000010000000-0x0000000010030000-memory.dmp	UPX
behavioral2/memory/4904-6-0x0000000010000000-0x0000000010030000-memory.dmp	UPX

ACProtect 1.3x - 1.4x DLL software 1 IoCs

Detects file using ACProtect software.

resource	yara_rule
behavioral2/files/0x000d00000001b890-1.dat	acprotect

Loads dropped DLL 1 IoCs

pid	Process
4904	2026-08-09_ebe16a3cd4be0029d9f8620a31dbbf29_amadey_elex_floxif_rhadamanthys_smoke-loader_stop.exe

UPX packed file 3 IoCs

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

upx

resource	yara_rule
behavioral2/files/0x000d00000001b890-1.dat	upx
behavioral2/memory/4904-3-0x0000000010000000-0x0000000010030000-memory.dmp	upx
behavioral2/memory/4904-6-0x0000000010000000-0x0000000010030000-memory.dmp	upx

Drops file in Program Files directory 1 IoCs

description	ioc	Process
File created	C:\Program Files\Common Files\System\symsrv.dll	2026-08-09_ebe16a3cd4be0029d9f8620a31dbbf29_amadey_elex_floxif_rhadamanthys_smoke-loader_stop.exe

Program crash 2 IoCs

pid	pid_target	Process	procid_target
2720	4904	WerFault.exe	87
3836	4904	WerFault.exe	87

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	2026-08-09_ebe16a3cd4be0029d9f8620a31dbbf29_amadey_elex_floxif_rhadamanthys_smoke-loader_stop.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4904	2026-08-09_ebe16a3cd4be0029d9f8620a31dbbf29_amadey_elex_floxif_rhadamanthys_smoke-loader_stop.exe

C:\Users\Admin\AppData\Local\Temp\2026-08-09_ebe16a3cd4be0029d9f8620a31dbbf29_amadey_elex_floxif_rhadamanthys_smoke-loader_stop.exe
"C:\Users\Admin\AppData\Local\Temp\2026-08-09_ebe16a3cd4be0029d9f8620a31dbbf29_amadey_elex_floxif_rhadamanthys_smoke-loader_stop.exe"
1⤵
- Loads dropped DLL
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
PID:4904
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4904 -s 516
  2⤵
  - Program crash
  PID:2720
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4904 -s 564
  2⤵
  - Program crash
  PID:3836

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 436 -p 4904 -ip 4904
1⤵
PID:2524

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 612 -p 4904 -ip 4904
1⤵
PID:2444

Network

MITRE ATT&CK Enterprise v16

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

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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

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memory/4904-3-0x0000000010000000-0x0000000010030000-memory.dmp

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memory/4904-5-0x0000000000480000-0x00000000004E8000-memory.dmp

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memory/4904-6-0x0000000010000000-0x0000000010030000-memory.dmp

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v16

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Downloads