floxif | 32a513624e1b7bf78405febe4e9569611798d2a415491720d5139f6cd3c66235

Analysis

max time kernel
148s
max time network
145s
platform
windows11-ltsc_2024_x64
resource
win11ltsc2024-20260709-en
resource tags

arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
submitted
01/08/2026, 10:45

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General

Target
2026-08-01_9118dc9eb65b76287f1dc000f56c83a9_amadey_cobalt-strike_elex_floxif_smoke-loader.exe
Size 290KB
Sample260801-mth3rashmd
SHA256 32a513624e1b7bf78405febe4e9569611798d2a415491720d5139f6cd3c66235
MD5 9118dc9eb65b76287f1dc000f56c83a9
SHA1 28d4faf8b17617e3c06d6b90050748b1d49f1f06
SHA512 f888efcc0664ab18b60cbcb0506027cdb3359d862feb38888f676df7a74a03d0688337a2edccadafd5391bb95538379efd38ab479c699088d9811bce8fe22177
SSDEEP 6144:vZYWhs2Z4n1E7g34XtVYAOfTdS9QUvpHBV+UdvrEFp7hKl:vGD2Z4nShVY58QUvpHBjvrEH7K
TLSH
T10F54AE0031C383F6D5720A3034E8E67199FDFC3C0AA5697B67C61B2D5F7C1829676A6A
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
behavioral2/files/0x000a000000019cc9-1.dat	floxif

UPX dump on OEP (original entry point) 3 IoCs

resource	yara_rule
behavioral2/memory/1208-4-0x0000000010000000-0x0000000010030000-memory.dmp	UPX
behavioral2/files/0x000a000000019cc9-1.dat	UPX
behavioral2/memory/1208-10-0x0000000010000000-0x0000000010030000-memory.dmp	UPX

ACProtect 1.3x - 1.4x DLL software 1 IoCs

Detects file using ACProtect software.

resource	yara_rule
behavioral2/files/0x000a000000019cc9-1.dat	acprotect

Loads dropped DLL 1 IoCs

pid	Process
1208	2026-08-01_9118dc9eb65b76287f1dc000f56c83a9_amadey_cobalt-strike_elex_floxif_smoke-loader.exe

UPX packed file 3 IoCs

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

upx

resource	yara_rule
behavioral2/memory/1208-4-0x0000000010000000-0x0000000010030000-memory.dmp	upx
behavioral2/files/0x000a000000019cc9-1.dat	upx
behavioral2/memory/1208-10-0x0000000010000000-0x0000000010030000-memory.dmp	upx

Drops file in Program Files directory 1 IoCs

description	ioc	Process
File created	C:\Program Files\Common Files\System\symsrv.dll	2026-08-01_9118dc9eb65b76287f1dc000f56c83a9_amadey_cobalt-strike_elex_floxif_smoke-loader.exe

Program crash 2 IoCs

pid	pid_target	Process	procid_target
4504	1208	WerFault.exe	87
2896	1208	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	2026-08-01_9118dc9eb65b76287f1dc000f56c83a9_amadey_cobalt-strike_elex_floxif_smoke-loader.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1208	2026-08-01_9118dc9eb65b76287f1dc000f56c83a9_amadey_cobalt-strike_elex_floxif_smoke-loader.exe
1208	2026-08-01_9118dc9eb65b76287f1dc000f56c83a9_amadey_cobalt-strike_elex_floxif_smoke-loader.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1208	2026-08-01_9118dc9eb65b76287f1dc000f56c83a9_amadey_cobalt-strike_elex_floxif_smoke-loader.exe

C:\Users\Admin\AppData\Local\Temp\2026-08-01_9118dc9eb65b76287f1dc000f56c83a9_amadey_cobalt-strike_elex_floxif_smoke-loader.exe
"C:\Users\Admin\AppData\Local\Temp\2026-08-01_9118dc9eb65b76287f1dc000f56c83a9_amadey_cobalt-strike_elex_floxif_smoke-loader.exe"
1⤵
- Loads dropped DLL
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1208
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1208 -s 460
  2⤵
  - Program crash
  PID:4504
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1208 -s 468
  2⤵
  - Program crash
  PID:2896

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 448 -p 1208 -ip 1208
1⤵
PID:5576

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 604 -p 1208 -ip 1208
1⤵
PID:812

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

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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memory/1208-4-0x0000000010000000-0x0000000010030000-memory.dmp

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memory/1208-6-0x00000000008B1000-0x00000000008B2000-memory.dmp

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memory/1208-8-0x00000000008B0000-0x00000000008E7000-memory.dmp

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memory/1208-10-0x0000000010000000-0x0000000010030000-memory.dmp

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