floxif | 1219284272cbe60c25d17011993b1dfc9b79731bd125ab016ebbf60784e778d3

Analysis

max time kernel
148s
max time network
143s
platform
windows11-ltsc_2024_x64
resource
win11ltsc2024-20260911-en
resource tags

arch:x64arch:x86image:win11ltsc2024-20260911-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
submitted
10/10/2026, 13:31

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General

Target
2026-10-09_4d34c409ee9f0ce17b3fc14429577745_coinminer_driverpack_elex_floxif_wannacry.exe
Size 1.5MB
Sample261010-qsjvfahf49
SHA256 1219284272cbe60c25d17011993b1dfc9b79731bd125ab016ebbf60784e778d3
MD5 4d34c409ee9f0ce17b3fc14429577745
SHA1 3a82e35825ffa991dd6bb7eebdb34f3431de3fbf
SHA512 b56e58dd7ed4de3ca9ffa50b99b1869f1c869a5fd206abea41988cf9793ba0c90f6ab2385a440a22c85dc31c4db00ff6e5d33d32484ca29115cfa7f2a5ce31fd
SSDEEP 24576:b53JFUdRkGTgv6UYt+3h6dTM5F++SoDeZg88r5s6QdhiQyDHkhp+gz7VdPpeV3F0:b5ZFgaP6jYh6dg5DSo5VrilhiQywhp+m
TLSH
T1E16512413A9983F9C8520030FC49EBB266E5AEBD171625E7A3E23F17BC7D6C4867D016
MD5 SHA1 SHA512 SSDEEP TLSH

Score

10^/10

backdoor defense_evasion 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/0x000e00000001b319-1.dat	floxif

UPX dump on OEP (original entry point) 3 IoCs

resource	yara_rule
behavioral2/files/0x000e00000001b319-1.dat	UPX
behavioral2/memory/400-4-0x0000000010000000-0x0000000010030000-memory.dmp	UPX
behavioral2/memory/400-50-0x0000000010000000-0x0000000010030000-memory.dmp	UPX

ACProtect 1.3x - 1.4x DLL software 1 IoCs

Detects file using ACProtect software.

resource	yara_rule
behavioral2/files/0x000e00000001b319-1.dat	acprotect

Executes dropped EXE 1 IoCs

pid	Process
3116	FastCopy.exe

Loads dropped DLL 1 IoCs

pid	Process
400	2026-10-09_4d34c409ee9f0ce17b3fc14429577745_coinminer_driverpack_elex_floxif_wannacry.exe

Checks whether UAC is enabled 1 TTPs 1 IoCs

defense_evasion trojan

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	FastCopy.exe

UPX packed file 3 IoCs

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

upx

resource	yara_rule
behavioral2/files/0x000e00000001b319-1.dat	upx
behavioral2/memory/400-4-0x0000000010000000-0x0000000010030000-memory.dmp	upx
behavioral2/memory/400-50-0x0000000010000000-0x0000000010030000-memory.dmp	upx

Drops file in Program Files directory 1 IoCs

description	ioc	Process
File created	C:\Program Files\Common Files\System\symsrv.dll	2026-10-09_4d34c409ee9f0ce17b3fc14429577745_coinminer_driverpack_elex_floxif_wannacry.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

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	2026-10-09_4d34c409ee9f0ce17b3fc14429577745_coinminer_driverpack_elex_floxif_wannacry.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

description	pid	Process
Token: SeDebugPrivilege	400	2026-10-09_4d34c409ee9f0ce17b3fc14429577745_coinminer_driverpack_elex_floxif_wannacry.exe
Token: SeBackupPrivilege	3116	FastCopy.exe
Token: SeRestorePrivilege	3116	FastCopy.exe
Token: SeManageVolumePrivilege	3116	FastCopy.exe
Token: SeSecurityPrivilege	3116	FastCopy.exe
Token: 35	3116	FastCopy.exe

Suspicious use of FindShellTrayWindow 2 IoCs

pid	Process
3116	FastCopy.exe
3116	FastCopy.exe

Suspicious use of WriteProcessMemory 1 IoCs

description	pid	Process	procid_target
PID 400 wrote to memory of 3116	400	2026-10-09_4d34c409ee9f0ce17b3fc14429577745_coinminer_driverpack_elex_floxif_wannacry.exe	91

C:\Users\Admin\AppData\Local\Temp\2026-10-09_4d34c409ee9f0ce17b3fc14429577745_coinminer_driverpack_elex_floxif_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2026-10-09_4d34c409ee9f0ce17b3fc14429577745_coinminer_driverpack_elex_floxif_wannacry.exe"
1⤵
- Loads dropped DLL
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:400
- C:\Users\Admin\AppData\Local\Temp\ko-KR64\FastCopy.exe
  "C:\Users\Admin\AppData\Local\Temp\ko-KR64\FastCopy.exe"
  2⤵
  - Executes dropped EXE
  - Checks whether UAC is enabled
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of FindShellTrayWindow
  PID:3116

Network

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

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

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FastCopy.exe

Path C:\Users\Admin\AppData\Local\Temp\ko-KR64\FastCopy.exe
Size 1.2MB
SHA256 c4afaf8ea30be00586c7d42fffec896043f751944556531a28f175c90467926d
MD5 250ae3e134f4897c49aa7bacada84dc1
SHA1 4b87ff1071ebcae7cb85235315199b6cf7814a08
SHA512 9c741c2029b43ce897949fe5a79c757749c81860623e5d459d14d24a879ddc1142f25e13eb200e03ba61170129743691b3bd536abc55258c617da0accc4b3e5c
SSDEEP 24576:SGtlqQPp32TNs2AIXMNV7zUSyg4mVRwSPF69WamZ0r:SGtlqQPpGpMEScmLNF69uZg
TLSH
T119457C55A3B944E4E0B7D538CEA28656EBB17C151B30CBCF22A0569F1F73AD09E39321
MD5 SHA1 SHA512 SSDEEP TLSH