floxif | 9c23e69840b2da574c669ab8a59e56b32c074257f427e287a4fac69d6888f0a5

Analysis

max time kernel
93s
max time network
138s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
18-12-2024 12:28

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General

Target

2024-12-18_d2cf801625b36725f2d0171f79079027_floxif_hijackloader_mafia.exe
Size

2.7MB
MD5

d2cf801625b36725f2d0171f79079027
SHA1

ce969380b625ae8708a3227cf70f8755da6cad96
SHA256

9c23e69840b2da574c669ab8a59e56b32c074257f427e287a4fac69d6888f0a5
SHA512

88f95d7ade31ea4017dcbd93f53b0060d1cbcd578a6da9be8eb2c65183c30869c8690b7504c62f581f6c9d343966b55251d1cfcec701134e232a90281e62772d
SSDEEP

49152:Flks4A6lVLX6Sc600FFIIsTp69FlNN7boUvH6u//zHWwhXPwMQ9i9ZMW/KMZKWK0:/n6r6+0aFIIsTY9Fl/7boUi+awZPwMQa

Score

10^/10

floxif backdoor discovery trojan upx

Malware Config

Signatures

Floxif family
floxif
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/0x000c000000023ba7-1.dat	floxif

ACProtect 1.3x - 1.4x DLL software 1 IoCs

Detects file using ACProtect software.

resource	yara_rule
behavioral2/files/0x000c000000023ba7-1.dat	acprotect

Loads dropped DLL 1 IoCs

pid	Process
5076	2024-12-18_d2cf801625b36725f2d0171f79079027_floxif_hijackloader_mafia.exe

UPX packed file 3 IoCs

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

upx

resource	yara_rule
behavioral2/memory/5076-4-0x0000000010000000-0x0000000010030000-memory.dmp	upx
behavioral2/files/0x000c000000023ba7-1.dat	upx
behavioral2/memory/5076-9-0x0000000010000000-0x0000000010030000-memory.dmp	upx

Drops file in Program Files directory 1 IoCs

description	ioc	Process
File created	C:\Program Files\Common Files\System\symsrv.dll	2024-12-18_d2cf801625b36725f2d0171f79079027_floxif_hijackloader_mafia.exe

Program crash 2 IoCs

pid	pid_target	Process	procid_target
3396	5076	WerFault.exe	81
4728	5076	WerFault.exe	81

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	2024-12-18_d2cf801625b36725f2d0171f79079027_floxif_hijackloader_mafia.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
5076	2024-12-18_d2cf801625b36725f2d0171f79079027_floxif_hijackloader_mafia.exe
5076	2024-12-18_d2cf801625b36725f2d0171f79079027_floxif_hijackloader_mafia.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	5076	2024-12-18_d2cf801625b36725f2d0171f79079027_floxif_hijackloader_mafia.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
5076	2024-12-18_d2cf801625b36725f2d0171f79079027_floxif_hijackloader_mafia.exe

C:\Users\Admin\AppData\Local\Temp\2024-12-18_d2cf801625b36725f2d0171f79079027_floxif_hijackloader_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2024-12-18_d2cf801625b36725f2d0171f79079027_floxif_hijackloader_mafia.exe"
1⤵
- Loads dropped DLL
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
PID:5076
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 5076 -s 804
  2⤵
  - Program crash
  PID:3396
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 5076 -s 868
  2⤵
  - Program crash
  PID:4728

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 5076 -ip 5076
1⤵
PID:4480

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 540 -p 5076 -ip 5076
1⤵
PID:3676

Network

MITRE ATT&CK Enterprise v15

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

C:\Program Files\Common Files\System\symsrv.dll

Filesize
67KB

MD5
7574cf2c64f35161ab1292e2f532aabf

SHA1
14ba3fa927a06224dfe587014299e834def4644f

SHA256
de055a89de246e629a8694bde18af2b1605e4b9b493c7e4aef669dd67acf5085

SHA512
4db19f2d8d5bc1c7bbb812d3fa9c43b80fa22140b346d2760f090b73aed8a5177edb4bddc647a6ebd5a2db8565be5a1a36a602b0d759e38540d9a584ba5896ab

Download Submit
memory/5076-4-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download
memory/5076-6-0x00000000007B1000-0x00000000007B2000-memory.dmp

Filesize
4KB

Download
memory/5076-9-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download
memory/5076-7-0x00000000007B0000-0x0000000000A58000-memory.dmp

Filesize
2.7MB

Download