floxif | 6172c68f508aff495bf9ef973746b5718847e18ba793faf1bba69e27c79bc83d

General

Target
2026-09-26_35b89802bb4848c8c47d68eca09169fa_amadey_avoslocker_elex_floxif_glassworm_luca-stealer_lynx_njrat.exe
Size 8.4MB
Sample260927-wpd3nstx2j
SHA256 6172c68f508aff495bf9ef973746b5718847e18ba793faf1bba69e27c79bc83d
MD5 35b89802bb4848c8c47d68eca09169fa
SHA1 5066212b33dfbbf4c8f8817c326f4370e4588141
SHA512 3cd65ed7de79f663ebf32de707a527f9a277ee21b5a3fd2aca3cb58810ebf7cec9038481afac85c0355e52d5e5dddf5e3b022c679181056f2441c873c8ecbf48
SSDEEP 98304:Tgzjwfi0lZYemmNbPihwcQJHqSg4sCDKWTv2IlG0Akb18U95YF4h3jd0dcbEAEik:8fwfnuw1XX2Iltb6Uke3GdcbE8k
TLSH
T18496F1415222D3A0C891E67A92D8BF3718A83A3D5BCD7CC396F01C596C70BD25E3AD5B
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
behavioral2/files/0x000f00000001c490-1.dat	floxif

UPX dump on OEP (original entry point) 3 IoCs

resource	yara_rule
behavioral2/files/0x000f00000001c490-1.dat	UPX
behavioral2/memory/4628-3-0x0000000010000000-0x0000000010033000-memory.dmp	UPX
behavioral2/memory/4628-14-0x0000000010000000-0x0000000010033000-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
behavioral2/files/0x000f00000001c490-1.dat	acprotect

Executes dropped EXE 1 IoCs

pid	Process
1408	eslji.sys

Loads dropped DLL 7 IoCs

pid	Process
4628	2026-09-26_35b89802bb4848c8c47d68eca09169fa_amadey_avoslocker_elex_floxif_glassworm_luca-stealer_lynx_njrat.exe
2668	WerFault.exe
5680	WerFault.exe
5788	WerFault.exe
52	WerFault.exe
2892	WerFault.exe
1300	WerFault.exe

Network Service Discovery 1 TTPs 8 IoCs

Attempt to gather information on host's network.

discovery

Network Service Discovery

T1046

pid	Process
4712	arp.exe
2460	arp.exe
4444	arp.exe
3516	arp.exe
2188	arp.exe
5100	arp.exe
1524	arp.exe
1308	arp.exe

UPX packed file 3 IoCs

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

upx

resource	yara_rule
behavioral2/files/0x000f00000001c490-1.dat	upx
behavioral2/memory/4628-3-0x0000000010000000-0x0000000010033000-memory.dmp	upx
behavioral2/memory/4628-14-0x0000000010000000-0x0000000010033000-memory.dmp	upx

Drops file in Program Files directory 1 IoCs

description	ioc	Process
File created	C:\Program Files\Common Files\System\symsrv.dll	2026-09-26_35b89802bb4848c8c47d68eca09169fa_amadey_avoslocker_elex_floxif_glassworm_luca-stealer_lynx_njrat.exe

Program crash 6 IoCs

pid	pid_target	Process	procid_target
5316	4628	WerFault.exe	88
624	4628	WerFault.exe	88
5008	4628	WerFault.exe	88
5680	4628	WerFault.exe	88
52	4628	WerFault.exe	88
1300	4628	WerFault.exe	88

System Location Discovery: System Language Discovery 1 TTPs 9 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	2026-09-26_35b89802bb4848c8c47d68eca09169fa_amadey_avoslocker_elex_floxif_glassworm_luca-stealer_lynx_njrat.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	arp.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	arp.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	arp.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	arp.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	arp.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	arp.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	arp.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	arp.exe

Checks processor information in registry 2 TTPs 4 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor	2026-09-26_35b89802bb4848c8c47d68eca09169fa_amadey_avoslocker_elex_floxif_glassworm_luca-stealer_lynx_njrat.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\ProcessorNameString	2026-09-26_35b89802bb4848c8c47d68eca09169fa_amadey_avoslocker_elex_floxif_glassworm_luca-stealer_lynx_njrat.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	2026-09-26_35b89802bb4848c8c47d68eca09169fa_amadey_avoslocker_elex_floxif_glassworm_luca-stealer_lynx_njrat.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	2026-09-26_35b89802bb4848c8c47d68eca09169fa_amadey_avoslocker_elex_floxif_glassworm_luca-stealer_lynx_njrat.exe

Enumerates system info in registry 2 TTPs 3 IoCs

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS	2026-09-26_35b89802bb4848c8c47d68eca09169fa_amadey_avoslocker_elex_floxif_glassworm_luca-stealer_lynx_njrat.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemFamily	2026-09-26_35b89802bb4848c8c47d68eca09169fa_amadey_avoslocker_elex_floxif_glassworm_luca-stealer_lynx_njrat.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemVersion	2026-09-26_35b89802bb4848c8c47d68eca09169fa_amadey_avoslocker_elex_floxif_glassworm_luca-stealer_lynx_njrat.exe

Suspicious behavior: LoadsDriver 1 IoCs

pid	Process
820	Process not Found

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4628	2026-09-26_35b89802bb4848c8c47d68eca09169fa_amadey_avoslocker_elex_floxif_glassworm_luca-stealer_lynx_njrat.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 4628 wrote to memory of 1308	4628	2026-09-26_35b89802bb4848c8c47d68eca09169fa_amadey_avoslocker_elex_floxif_glassworm_luca-stealer_lynx_njrat.exe	96
PID 4628 wrote to memory of 4712	4628	2026-09-26_35b89802bb4848c8c47d68eca09169fa_amadey_avoslocker_elex_floxif_glassworm_luca-stealer_lynx_njrat.exe	98
PID 4628 wrote to memory of 5100	4628	2026-09-26_35b89802bb4848c8c47d68eca09169fa_amadey_avoslocker_elex_floxif_glassworm_luca-stealer_lynx_njrat.exe	99
PID 4628 wrote to memory of 2188	4628	2026-09-26_35b89802bb4848c8c47d68eca09169fa_amadey_avoslocker_elex_floxif_glassworm_luca-stealer_lynx_njrat.exe	100
PID 4628 wrote to memory of 3516	4628	2026-09-26_35b89802bb4848c8c47d68eca09169fa_amadey_avoslocker_elex_floxif_glassworm_luca-stealer_lynx_njrat.exe	101
PID 4628 wrote to memory of 4444	4628	2026-09-26_35b89802bb4848c8c47d68eca09169fa_amadey_avoslocker_elex_floxif_glassworm_luca-stealer_lynx_njrat.exe	102
PID 4628 wrote to memory of 2460	4628	2026-09-26_35b89802bb4848c8c47d68eca09169fa_amadey_avoslocker_elex_floxif_glassworm_luca-stealer_lynx_njrat.exe	103

C:\Users\Admin\AppData\Local\Temp\2026-09-26_35b89802bb4848c8c47d68eca09169fa_amadey_avoslocker_elex_floxif_glassworm_luca-stealer_lynx_njrat.exe
"C:\Users\Admin\AppData\Local\Temp\2026-09-26_35b89802bb4848c8c47d68eca09169fa_amadey_avoslocker_elex_floxif_glassworm_luca-stealer_lynx_njrat.exe"
1⤵
- Loads dropped DLL
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4628
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4628 -s 548
  2⤵
  - Program crash
  PID:5316
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4628 -s 568
  2⤵
  - Program crash
  PID:624
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4628 -s 576
  2⤵
  - Program crash
  PID:5008
- C:\Windows\SysWOW64\arp.exe
  arp -a
  2⤵
  - Network Service Discovery
  - System Location Discovery: System Language Discovery
  PID:1308
- C:\Windows\SysWOW64\arp.exe
  arp -s 10.127.0.1 bd-e5-98-a5-8b-dd
  2⤵
  - Network Service Discovery
  - System Location Discovery: System Language Discovery
  PID:4712
- C:\Windows\SysWOW64\arp.exe
  arp -s 10.127.255.255 fd-6b-42-cc-85-67
  2⤵
  - Network Service Discovery
  - System Location Discovery: System Language Discovery
  PID:5100
- C:\Windows\SysWOW64\arp.exe
  arp -s 224.0.0.22 7b-37-45-cc-ab-11
  2⤵
  - Network Service Discovery
  - System Location Discovery: System Language Discovery
  PID:2188
- C:\Windows\SysWOW64\arp.exe
  arp -s 224.0.0.252 43-ba-38-6e-13-d3
  2⤵
  - Network Service Discovery
  - System Location Discovery: System Language Discovery
  PID:3516
- C:\Windows\SysWOW64\arp.exe
  arp -s 239.255.255.250 e3-a8-cb-b5-c2-6f
  2⤵
  - Network Service Discovery
  - System Location Discovery: System Language Discovery
  PID:4444
- C:\Windows\SysWOW64\arp.exe
  arp -s 255.255.255.255 bc-60-26-99-f1-33
  2⤵
  - Network Service Discovery
  - System Location Discovery: System Language Discovery
  PID:2460
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4628 -s 712
  2⤵
  - Loads dropped DLL
  - Program crash
  PID:5680
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4628 -s 848
  2⤵
  - Loads dropped DLL
  - Program crash
  PID:52
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4628 -s 192
  2⤵
  - Loads dropped DLL
  - Program crash
  PID:1300

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 436 -p 4628 -ip 4628
1⤵
PID:5612

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 500 -p 4628 -ip 4628
1⤵
PID:4200

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 500 -p 4628 -ip 4628
1⤵
PID:2768

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 556 -p 4628 -ip 4628
1⤵
- Loads dropped DLL
PID:2668

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 552 -p 4628 -ip 4628
1⤵
- Loads dropped DLL
PID:5788

C:\Users\Admin\AppData\Local\Temp\eslji.sys
C:\Users\Admin\AppData\Local\Temp\eslji.sys
1⤵
- Executes dropped EXE
PID:1408

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 552 -p 4628 -ip 4628
1⤵
- Loads dropped DLL
PID:2892
- C:\Windows\SysWOW64\arp.exe
  arp -a
  2⤵
  - Network Service Discovery
  - System Location Discovery: System Language Discovery
  PID:1524

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

Network Service Discovery

Query Registry

System Information Discovery

2

T1082

System Location Discovery

1

T1614

System Language Discovery

1

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 71KB
SHA256 8ea3b17e4b783ffc0bc387b81b823bf87af0d57da74541d88ba85314bb232a5d
MD5 4fcd7574537cebec8e75b4e646996643
SHA1 efa59bb9050fb656b90d5d40c942fb2a304f2a8b
SHA512 7f1a7ef64d332a735db82506b47d84853af870785066d29ccaf4fdeab114079a9f0db400e01ba574776a0d652a248658fe1e8f9659cdced19ad6eea09644ea3e
SSDEEP 1536:5POOhfbOjovgdVydUgoNrwBZXGDaZ1QIxrfItMgR7ZaO+fGxHZPEP:5dbwovEVyqgoZmZXWfIdQdRaefPq
TLSH
T1D173E0B72DFC4865E1A12277865F4319EA31D4778110E86BC9080BC9CDBA9E0E7536BE
MD5 SHA1 SHA512 SSDEEP TLSH

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eslji.sys

Path C:\Users\Admin\AppData\Local\Temp\eslji.sys
Size 3KB
SHA256 3067d8066662cb37ca340af9d29d9445ef178a5dd0c3c8a12d4488b43cef7b01
MD5 1c94346fbbdcb8913ca229380cd4ff21
SHA1 2c0111286a7e779fdff05e9d4f9c997ed970b91d
SHA512 59a45981fe0a105f364e7cee8f2f94103aca37a366c7b0828e0d243d612f02cf42bc15e79e087a3d537c72db2a06dbe3e019d98ad9ae628c046ca960b8e359b4
TLSH
T1DB619407AF4BD072CCBD18FC28EB2524FA394495033997C38D949198BD423E1393829B
MD5 SHA1 SHA512 TLSH

Submit Download

memory/4628-3-0x0000000010000000-0x0000000010033000-memory.dmp

Download

memory/4628-14-0x0000000010000000-0x0000000010033000-memory.dmp

Download

memory/4628-13-0x0000000000570000-0x0000000000E12000-memory.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v16

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Downloads