floxif | 73d23957f1ba2761495f644c887bab3924124955cd70a3750f5babd2facbacc0

Analysis

max time kernel
150s
max time network
144s
platform
windows11-ltsc_2024_x64
resource
win11ltsc2024-20260911-en
resource tags

arch:x64arch:x86image:win11ltsc2024-20260911-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
submitted
30/10/2026, 07:57

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General

Target
2026-10-28_2a31c3d8f126c008fb359716f7f41a35_elex_floxif_wannacry.exe
Size 316KB
Sample261030-jtlxvsdh78
SHA256 73d23957f1ba2761495f644c887bab3924124955cd70a3750f5babd2facbacc0
MD5 2a31c3d8f126c008fb359716f7f41a35
SHA1 2ae058e94528f7c9e61671f890a68dd0633a953b
SHA512 1200576766566c1c9a8a1175948253869f5a50a322386db707900e68c456fc608166e1f532044734b762cdd280f5bb560f95abd5d44040a42006aee771aaef55
SSDEEP 6144:UmiYMlkF/aNzMzCnt2KkhKQciyY4N6dxzA1FBBprViY9xp5nbelviqsQvMRlkM4n:UmiYMylszMzCnt2KkhKQciyY4N6dxzAe
TLSH
T16A649E31F250C7FDF0A10076BAB92AAA0E98BC7F131911C7A2D0648A5A3DDD1BD7475B
MD5 SHA1 SHA512 SSDEEP TLSH

Score

10^/10

backdoor defense_evasion discovery evasion floxif phorphiex loader persistence privilege_escalation trojan upx worm

Malware Config

Extracted

Family

phorphiex

Wallets

15i4zgkk6g4x3eb161Ay9hMj8aZ8dswqEJpNaCY4s4C5ka17
17SBPhXtH8AxszbyEPPvFaazef6Cpup7Rg
3AcMV5pSUcxMmmcMbfSkJXRKbCrF3ysUDJ
qrzu3lahc7thkstxdsjamym2sak78j6mpy23fk3mxj
XdxqSoWqiAHKgbXP5zQabiy2kUhbtaiqmn
DAHCJcwE5y3K4nA9YGjiLWSEPmadeh7uZX
0x57af5e3E5D6CB0cA6F44D303328b4f68Edaa9E39
LKHcffQ1KFH9byXS8VdfHUYLzY9a8W4ZHg
r9Ftrva5RQP24TsK3yA5JVgDHaSSFxvt1s
TDfp7Nkqk26x6Yx7Cg4otm96HLpaUXRXfY
t1aCQnZyyAmDbuDxHvWHYJw8yHKXvGKfx2H
AJE3WzUsBvX1BWF1fcnwby28114DKpoSVm
bitcoincash:qrzu3lahc7thkstxdsjamym2sak78j6mpy23fk3mxj
4AfbdZbgJ52fg6GbKkR2gRT3DMboW1ZToGisLqu3psxsGEtXoGg8QGhdfhcYkX5He19L2qEJpG2fajSz7mxEbYQF2zCAMKs
GCY7OC7EPYI6LSMPCC54UBGNFGFMX2LJF6SCVRKS5CJD5YMHVQSGBJVW
bnb1qq5re95dlsf0l0edx8kjpurluc5uslgdgqzxnv
bc1qfqne66vggljvmreg8gz6ng8xrjtf63vrm4c40a

Attributes

user_agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/89.0.4389.90 Safari/537.36

Signatures

Family: Floxif, Floodfix
Floxif aka FloodFix is a file-changing trojan and backdoor written in C++.
backdoor trojan floxif
Family: Phorphiex, Phorpiex
Phorphiex or Phorpiex Malware family which infects systems to distribute other malicious payloads such as ransomware, stealers and cryptominers.
worm trojan loader phorphiex

Modifies Windows Defender DisableAntiSpyware settings 3 TTPs 1 IoCs

evasion trojan

Modify Registry

T1112

Windows Service

T1543.003

Disable or Modify Tools

T1562.001

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\DisableAntiSpyware = "1"	dwm.exe

Phorphiex payload 5 IoCs

resource	yara_rule
behavioral2/memory/2360-10-0x00000000006F0000-0x000000000070E000-memory.dmp	family_phorphiex
behavioral2/files/0x000c00000001c5cd-13.dat	family_phorphiex
behavioral2/memory/204-21-0x0000000000650000-0x000000000066E000-memory.dmp	family_phorphiex
behavioral2/memory/204-34-0x0000000000650000-0x000000000066E000-memory.dmp	family_phorphiex
behavioral2/memory/204-44-0x0000000000650000-0x000000000066E000-memory.dmp	family_phorphiex

Windows security bypass 2 TTPs 6 IoCs

defense_evasion trojan

Disable or Modify Tools

T1562.001

Modify Registry

T1112

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\UpdatesOverride = "1"	dwm.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\UpdatesDisableNotify = "1"	dwm.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\AntiVirusOverride = "1"	dwm.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\AntiVirusDisableNotify = "1"	dwm.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\FirewallOverride = "1"	dwm.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\FirewallDisableNotify = "1"	dwm.exe

Detects Floxif payload 1 IoCs

backdoor

resource	yara_rule
behavioral2/files/0x000700000001b84e-1.dat	floxif

Custom signature

UPX dump on OEP (original entry point) 7 IoCs

resource	yara_rule
behavioral2/files/0x000700000001b84e-1.dat	UPX
behavioral2/memory/2360-4-0x0000000010000000-0x0000000010033000-memory.dmp	UPX
behavioral2/memory/2360-12-0x0000000010000000-0x0000000010033000-memory.dmp	UPX
behavioral2/memory/2360-11-0x0000000010000000-0x0000000010033000-memory.dmp	UPX
behavioral2/memory/204-16-0x0000000010000000-0x0000000010033000-memory.dmp	UPX
behavioral2/memory/2360-18-0x0000000010000000-0x0000000010033000-memory.dmp	UPX
behavioral2/memory/204-23-0x0000000010000000-0x0000000010033000-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/0x000700000001b84e-1.dat	acprotect

Executes dropped EXE 3 IoCs

pid	Process
4836	ydnnd.sys
5660	gndqt.sys
204	dwm.exe

Loads dropped DLL 2 IoCs

pid	Process
2360	2026-10-28_2a31c3d8f126c008fb359716f7f41a35_elex_floxif_wannacry.exe
204	dwm.exe

Windows security modification 2 TTPs 7 IoCs

defense_evasion trojan

Disable or Modify Tools

T1562.001

Modify Registry

T1112

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\AntiSpywareOverride = "1"	dwm.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\AntiVirusOverride = "1"	dwm.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\AntiVirusDisableNotify = "1"	dwm.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\FirewallOverride = "1"	dwm.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\FirewallDisableNotify = "1"	dwm.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\UpdatesOverride = "1"	dwm.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\UpdatesDisableNotify = "1"	dwm.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-560646293-820748483-2532804640-1000\Software\Microsoft\Windows\CurrentVersion\Run\Desktop Window Manager = "C:\\178412121718848\\dwm.exe"	2026-10-28_2a31c3d8f126c008fb359716f7f41a35_elex_floxif_wannacry.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\Desktop Window Manager = "C:\\178412121718848\\dwm.exe"	2026-10-28_2a31c3d8f126c008fb359716f7f41a35_elex_floxif_wannacry.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)	\??\d:	2026-10-28_2a31c3d8f126c008fb359716f7f41a35_elex_floxif_wannacry.exe

Network Service Discovery 1 TTPs 8 IoCs

Attempt to gather information on host's network.

discovery

Network Service Discovery

T1046

pid	Process
4728	arp.exe
1720	arp.exe
5048	arp.exe
4156	arp.exe
4920	arp.exe
4152	arp.exe
4640	arp.exe
3984	arp.exe

UPX packed file 7 IoCs

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

upx

resource	yara_rule
behavioral2/files/0x000700000001b84e-1.dat	upx
behavioral2/memory/2360-4-0x0000000010000000-0x0000000010033000-memory.dmp	upx
behavioral2/memory/2360-12-0x0000000010000000-0x0000000010033000-memory.dmp	upx
behavioral2/memory/2360-11-0x0000000010000000-0x0000000010033000-memory.dmp	upx
behavioral2/memory/204-16-0x0000000010000000-0x0000000010033000-memory.dmp	upx
behavioral2/memory/2360-18-0x0000000010000000-0x0000000010033000-memory.dmp	upx
behavioral2/memory/204-23-0x0000000010000000-0x0000000010033000-memory.dmp	upx

Drops file in Program Files directory 1 IoCs

description	ioc	Process
File created	C:\Program Files\Common Files\System\symsrv.dll	2026-10-28_2a31c3d8f126c008fb359716f7f41a35_elex_floxif_wannacry.exe

Reads the TCP/IP host and domain name from the registry 1 TTPs 4 IoCs

The configured hostname and DNS domain identify the machine and are commonly collected to profile a host before it reports in.

discovery

System Network Configuration Discovery

T1016

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Tcpip\Parameters\Hostname	2026-10-28_2a31c3d8f126c008fb359716f7f41a35_elex_floxif_wannacry.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Tcpip\Parameters\Domain	2026-10-28_2a31c3d8f126c008fb359716f7f41a35_elex_floxif_wannacry.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Tcpip\Parameters\Hostname	dwm.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Tcpip\Parameters\Domain	dwm.exe

System Location Discovery: System Language Discovery 1 TTPs 11 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	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	2026-10-28_2a31c3d8f126c008fb359716f7f41a35_elex_floxif_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	arp.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	dwm.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	arp.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2360	2026-10-28_2a31c3d8f126c008fb359716f7f41a35_elex_floxif_wannacry.exe
2360	2026-10-28_2a31c3d8f126c008fb359716f7f41a35_elex_floxif_wannacry.exe

Suspicious behavior: LoadsDriver 2 IoCs

pid	Process
828	Process not Found
828	Process not Found

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2360	2026-10-28_2a31c3d8f126c008fb359716f7f41a35_elex_floxif_wannacry.exe
Token: SeDebugPrivilege	204	dwm.exe

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 2360 wrote to memory of 4728	2360	2026-10-28_2a31c3d8f126c008fb359716f7f41a35_elex_floxif_wannacry.exe	89
PID 2360 wrote to memory of 1720	2360	2026-10-28_2a31c3d8f126c008fb359716f7f41a35_elex_floxif_wannacry.exe	91
PID 2360 wrote to memory of 5048	2360	2026-10-28_2a31c3d8f126c008fb359716f7f41a35_elex_floxif_wannacry.exe	92
PID 2360 wrote to memory of 3984	2360	2026-10-28_2a31c3d8f126c008fb359716f7f41a35_elex_floxif_wannacry.exe	93
PID 2360 wrote to memory of 4640	2360	2026-10-28_2a31c3d8f126c008fb359716f7f41a35_elex_floxif_wannacry.exe	94
PID 2360 wrote to memory of 4152	2360	2026-10-28_2a31c3d8f126c008fb359716f7f41a35_elex_floxif_wannacry.exe	95
PID 2360 wrote to memory of 4920	2360	2026-10-28_2a31c3d8f126c008fb359716f7f41a35_elex_floxif_wannacry.exe	96
PID 2360 wrote to memory of 4156	2360	2026-10-28_2a31c3d8f126c008fb359716f7f41a35_elex_floxif_wannacry.exe	97
PID 2360 wrote to memory of 204	2360	2026-10-28_2a31c3d8f126c008fb359716f7f41a35_elex_floxif_wannacry.exe	109
PID 2360 wrote to memory of 5708	2360	2026-10-28_2a31c3d8f126c008fb359716f7f41a35_elex_floxif_wannacry.exe	110

C:\Users\Admin\AppData\Local\Temp\2026-10-28_2a31c3d8f126c008fb359716f7f41a35_elex_floxif_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2026-10-28_2a31c3d8f126c008fb359716f7f41a35_elex_floxif_wannacry.exe"
1⤵
- Loads dropped DLL
- Adds Run key to start application
- Enumerates connected drives
- Drops file in Program Files directory
- Reads the TCP/IP host and domain name from the registry
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2360
- C:\Windows\SysWOW64\arp.exe
  arp -a
  2⤵
  - Network Service Discovery
  - System Location Discovery: System Language Discovery
  PID:4728
- C:\Windows\SysWOW64\arp.exe
  arp -s 10.127.0.1 f4-e8-ef-26-d0-f7
  2⤵
  - Network Service Discovery
  - System Location Discovery: System Language Discovery
  PID:1720
- C:\Windows\SysWOW64\arp.exe
  arp -s 10.127.255.255 7c-d8-ae-ec-34-1b
  2⤵
  - Network Service Discovery
  - System Location Discovery: System Language Discovery
  PID:5048
- C:\Windows\SysWOW64\arp.exe
  arp -s 224.0.0.22 b5-55-6d-14-c7-db
  2⤵
  - Network Service Discovery
  - System Location Discovery: System Language Discovery
  PID:3984
- C:\Windows\SysWOW64\arp.exe
  arp -s 224.0.0.251 9b-5d-bd-b0-c5-81
  2⤵
  - Network Service Discovery
  - System Location Discovery: System Language Discovery
  PID:4640
- C:\Windows\SysWOW64\arp.exe
  arp -s 224.0.0.252 e2-8b-e8-43-5a-34
  2⤵
  - Network Service Discovery
  - System Location Discovery: System Language Discovery
  PID:4152
- C:\Windows\SysWOW64\arp.exe
  arp -s 239.255.255.250 f6-43-67-73-45-48
  2⤵
  - Network Service Discovery
  - System Location Discovery: System Language Discovery
  PID:4920
- C:\Windows\SysWOW64\arp.exe
  arp -s 255.255.255.255 78-5c-28-6c-db-b6
  2⤵
  - Network Service Discovery
  - System Location Discovery: System Language Discovery
  PID:4156
- C:\178412121718848\dwm.exe
  C:\178412121718848\dwm.exe
  2⤵
  - Modifies Windows Defender DisableAntiSpyware settings
  - Windows security bypass
  - Executes dropped EXE
  - Loads dropped DLL
  - Windows security modification
  - Reads the TCP/IP host and domain name from the registry
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  PID:204
- C:\Windows\SysWOW64\arp.exe
  arp -d
  2⤵
  - System Location Discovery: System Language Discovery
  PID:5708

C:\Users\Admin\AppData\Local\Temp\ydnnd.sys
C:\Users\Admin\AppData\Local\Temp\ydnnd.sys
1⤵
- Executes dropped EXE
PID:4836

C:\Users\Admin\AppData\Local\Temp\gndqt.sys
C:\Users\Admin\AppData\Local\Temp\gndqt.sys
1⤵
- Executes dropped EXE
PID:5660

Network

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Create or Modify System Process

T1543

Windows Service

T1543.003

Event Triggered Execution

T1546

AppInit DLLs

T1546.010

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Create or Modify System Process

T1543

Windows Service

T1543.003

Event Triggered Execution

T1546

AppInit DLLs

T1546.010

Defense Evasion

Impair Defenses

T1562

Disable or Modify Tools

T1562.001

Modify Registry

T1112

Credential Access

Discovery

Network Service Discovery

T1046

Peripheral Device Discovery

T1120

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

System Network Configuration Discovery

T1016

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

dwm.exe

Path C:\178412121718848\dwm.exe
Size 316KB
SHA256 73d23957f1ba2761495f644c887bab3924124955cd70a3750f5babd2facbacc0
MD5 2a31c3d8f126c008fb359716f7f41a35
SHA1 2ae058e94528f7c9e61671f890a68dd0633a953b
SHA512 1200576766566c1c9a8a1175948253869f5a50a322386db707900e68c456fc608166e1f532044734b762cdd280f5bb560f95abd5d44040a42006aee771aaef55
SSDEEP 6144:UmiYMlkF/aNzMzCnt2KkhKQciyY4N6dxzA1FBBprViY9xp5nbelviqsQvMRlkM4n:UmiYMylszMzCnt2KkhKQciyY4N6dxzAe
TLSH
T16A649E31F250C7FDF0A10076BAB92AAA0E98BC7F131911C7A2D0648A5A3DDD1BD7475B
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

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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ydnnd.sys

Path C:\Users\Admin\AppData\Local\Temp\ydnnd.sys
Size 3KB
SHA256 bdb03cc7f021f7444e50728c949239edea669c2d2fce0c68d72124d8fc426cd9
MD5 7199a178c988717712808e1218c81b8d
SHA1 e12dd81c94b1ba88be6da512063f45a4bfc086c1
SHA512 a59724de9adecacc0eba9cacf16de3e6b03e1db202cd0572108c3db519a29a3a12b3dd3cde616b7a9a30d373892e8cce7b128a5d6194e8aaea46b1bc4c45027d
TLSH
T171617307AF4B8072CCBD08FC28EF1525FA794495033497C389A49199BD423E1393829B
MD5 SHA1 SHA512 TLSH

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memory/204-21-0x0000000000650000-0x000000000066E000-memory.dmp

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memory/204-16-0x0000000010000000-0x0000000010033000-memory.dmp

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memory/204-23-0x0000000010000000-0x0000000010033000-memory.dmp

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memory/204-34-0x0000000000650000-0x000000000066E000-memory.dmp

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memory/204-44-0x0000000000650000-0x000000000066E000-memory.dmp

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memory/2360-12-0x0000000010000000-0x0000000010033000-memory.dmp

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memory/2360-11-0x0000000010000000-0x0000000010033000-memory.dmp

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memory/2360-10-0x00000000006F0000-0x000000000070E000-memory.dmp

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memory/2360-18-0x0000000010000000-0x0000000010033000-memory.dmp

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memory/2360-4-0x0000000010000000-0x0000000010033000-memory.dmp

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