floxif | f03ad6b6f57acc297aea14f2e1179bed57c2f16a2bb1a2de71bc5b79b78d48da

Analysis

max time kernel
149s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20260513-en
resource tags

arch:x64arch:x86image:win10v2004-20260513-enlocale:en-usos:windows10-2004-x64systemwindows
submitted
04/08/2026, 07:37

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General

Target
2026-08-04_3e34c35897cc443ce48fedb39112e139_amadey_elex_floxif_rhadamanthys_smoke-loader.exe
Size 479KB
Sample260804-jfvmvay1dv
SHA256 f03ad6b6f57acc297aea14f2e1179bed57c2f16a2bb1a2de71bc5b79b78d48da
MD5 3e34c35897cc443ce48fedb39112e139
SHA1 07ebc6c83c766c72fec5252983d63477fd1f874e
SHA512 4cd8b1f9c34e98df4d713b007ca6922c787add535ed7ebc97e18cd3e6494d7fb8babe88ac4fd91d6f475bbf79dffabdfea2e549df97f8abf9ff3566bccd2003f
SSDEEP 12288:xu++ewuadujFy1H+hyKyVkKB0HaKKTcF5fBjvrEH7F:xuTewuNjmHjj4F4o/rEH7F
TLSH
T13AA4AF10BBD5C3B6EAA72B3528F4876D55BABC3C5B31D6CBA304161D9C747C2A870326
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
behavioral1/files/0x0004000000023252-1.dat	floxif

UPX dump on OEP (original entry point) 3 IoCs

resource	yara_rule
behavioral1/files/0x0004000000023252-1.dat	UPX
behavioral1/memory/5044-4-0x0000000010000000-0x0000000010030000-memory.dmp	UPX
behavioral1/memory/5044-8-0x0000000010000000-0x0000000010030000-memory.dmp	UPX

ACProtect 1.3x - 1.4x DLL software 1 IoCs

Detects file using ACProtect software.

resource	yara_rule
behavioral1/files/0x0004000000023252-1.dat	acprotect

Loads dropped DLL 1 IoCs

pid	Process
5044	2026-08-04_3e34c35897cc443ce48fedb39112e139_amadey_elex_floxif_rhadamanthys_smoke-loader.exe

UPX packed file 3 IoCs

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

upx

resource	yara_rule
behavioral1/files/0x0004000000023252-1.dat	upx
behavioral1/memory/5044-4-0x0000000010000000-0x0000000010030000-memory.dmp	upx
behavioral1/memory/5044-8-0x0000000010000000-0x0000000010030000-memory.dmp	upx

Drops file in Program Files directory 1 IoCs

description	ioc	Process
File created	C:\Program Files\Common Files\System\symsrv.dll	2026-08-04_3e34c35897cc443ce48fedb39112e139_amadey_elex_floxif_rhadamanthys_smoke-loader.exe

Program crash 2 IoCs

pid	pid_target	Process	procid_target
3784	5044	WerFault.exe	87
2480	5044	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	2026-08-04_3e34c35897cc443ce48fedb39112e139_amadey_elex_floxif_rhadamanthys_smoke-loader.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	5044	2026-08-04_3e34c35897cc443ce48fedb39112e139_amadey_elex_floxif_rhadamanthys_smoke-loader.exe

C:\Users\Admin\AppData\Local\Temp\2026-08-04_3e34c35897cc443ce48fedb39112e139_amadey_elex_floxif_rhadamanthys_smoke-loader.exe
"C:\Users\Admin\AppData\Local\Temp\2026-08-04_3e34c35897cc443ce48fedb39112e139_amadey_elex_floxif_rhadamanthys_smoke-loader.exe"
1⤵
- Loads dropped DLL
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
PID:5044
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 5044 -s 488
  2⤵
  - Program crash
  PID:3784
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 5044 -s 496
  2⤵
  - Program crash
  PID:2480

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 5044 -ip 5044
1⤵
PID:3828

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 520 -p 5044 -ip 5044
1⤵
PID:2068

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/5044-4-0x0000000010000000-0x0000000010030000-memory.dmp

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memory/5044-6-0x0000000000560000-0x00000000005C8000-memory.dmp

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memory/5044-8-0x0000000010000000-0x0000000010030000-memory.dmp

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v16

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Downloads