floxif | 1a05f111753df8d6b6adb2e6ea108521e9d3b600cd707bec86465e4ee3fd0e01

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
19/05/2026, 16:16

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General

Target
2026-05-19_d0ba8f1644615c9071c8878651ec8454_darkgate_elex_floxif_mafia.exe
Size 2.5MB
Sample260519-traf6ahs7v
SHA256 1a05f111753df8d6b6adb2e6ea108521e9d3b600cd707bec86465e4ee3fd0e01
MD5 d0ba8f1644615c9071c8878651ec8454
SHA1 53c9af97d97e3a0501af7562015661cf95a08167
SHA512 c5711cb0c267018878f218d3e623be44aba1814808ec3d56fd03f6fd3ea7e1a58fa7593d297f88d09614e8aaec4ecf856c1062c75175b8f4c2e3f31836a11baa
SSDEEP 49152:QuIIKgofs2hPd2l177BTK2VbDsar1YDjGQ:Qjxfs2hPIl1/u
TLSH
T151C5AE00FB46D2F1DD4762B448FBA31E462996F843141AD7E3580E0F5EAAAD37D3A18D
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/0x0007000000009dbf-1.dat	floxif

UPX dump on OEP (original entry point) 3 IoCs

resource	yara_rule
behavioral1/memory/2076-4-0x0000000010000000-0x0000000010030000-memory.dmp	UPX
behavioral1/files/0x0007000000009dbf-1.dat	UPX
behavioral1/memory/2076-13-0x0000000010000000-0x0000000010030000-memory.dmp	UPX

ACProtect 1.3x - 1.4x DLL software 1 IoCs

Detects file using ACProtect software.

resource	yara_rule
behavioral1/files/0x0007000000009dbf-1.dat	acprotect

Loads dropped DLL 1 IoCs

pid	Process
2076	2026-05-19_d0ba8f1644615c9071c8878651ec8454_darkgate_elex_floxif_mafia.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)	\??\e:	2026-05-19_d0ba8f1644615c9071c8878651ec8454_darkgate_elex_floxif_mafia.exe

UPX packed file 3 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2076-4-0x0000000010000000-0x0000000010030000-memory.dmp	upx
behavioral1/files/0x0007000000009dbf-1.dat	upx
behavioral1/memory/2076-13-0x0000000010000000-0x0000000010030000-memory.dmp	upx

Drops file in Program Files directory 1 IoCs

description	ioc	Process
File created	C:\Program Files\Common Files\System\symsrv.dll	2026-05-19_d0ba8f1644615c9071c8878651ec8454_darkgate_elex_floxif_mafia.exe

Program crash 3 IoCs

pid	pid_target	Process	procid_target
1824	2076	WerFault.exe	85
732	2076	WerFault.exe	85
3248	2076	WerFault.exe	85

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	2026-05-19_d0ba8f1644615c9071c8878651ec8454_darkgate_elex_floxif_mafia.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2076	2026-05-19_d0ba8f1644615c9071c8878651ec8454_darkgate_elex_floxif_mafia.exe
2076	2026-05-19_d0ba8f1644615c9071c8878651ec8454_darkgate_elex_floxif_mafia.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2076	2026-05-19_d0ba8f1644615c9071c8878651ec8454_darkgate_elex_floxif_mafia.exe

C:\Users\Admin\AppData\Local\Temp\2026-05-19_d0ba8f1644615c9071c8878651ec8454_darkgate_elex_floxif_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2026-05-19_d0ba8f1644615c9071c8878651ec8454_darkgate_elex_floxif_mafia.exe"
1⤵
- Loads dropped DLL
- Enumerates connected drives
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2076
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2076 -s 852
  2⤵
  - Program crash
  PID:732
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2076 -s 924
  2⤵
  - Program crash
  PID:1824
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2076 -s 860
  2⤵
  - Program crash
  PID:3248

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 424 -p 2076 -ip 2076
1⤵
PID:5052

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 412 -p 2076 -ip 2076
1⤵
PID:2948

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 416 -p 2076 -ip 2076
1⤵
PID:3968

Network

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Peripheral Device Discovery

T1120

Query Registry

T1012

System Information Discovery

T1082

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/2076-4-0x0000000010000000-0x0000000010030000-memory.dmp

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memory/2076-6-0x00000000008E1000-0x00000000008E2000-memory.dmp

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memory/2076-13-0x0000000010000000-0x0000000010030000-memory.dmp

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memory/2076-11-0x00000000008E0000-0x0000000000B4A000-memory.dmp

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