floxif | 6cf850e6d57ac3e9441329fd9cf2a3df64684cdd0ac44037741ccda083993dd3

Analysis

max time kernel
149s
max time network
149s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
12/08/2024, 07:40

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General

Target

2024-08-12_ce2e61494539be8b47b974cb6db3c562_floxif_hijackloader_mafia.exe
Size

2.7MB
MD5

ce2e61494539be8b47b974cb6db3c562
SHA1

3ecdcf356864b7ba574fa2320ab49a24063d10b5
SHA256

6cf850e6d57ac3e9441329fd9cf2a3df64684cdd0ac44037741ccda083993dd3
SHA512

1696cb9d43b96dc00103dad25a2675dae8caec93c80f084cf50c34a6315fc6b631ddea0f7dad06447f9d36d777ba9826bdbb7e2f2f9427a3008060c0ca1f6bda
SSDEEP

49152:KaSofyDdWWqJXBhgmvQojZ2toFPVmyN8KrOR23P2yYI1b7B5lcdtH9jR9W/KMZKc:LudEBhzQoMtoFPVmyN8KrOR23O8N77lx

Score

10^/10

floxif backdoor discovery trojan upx

Malware Config

Signatures

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/0x00090000000233fa-1.dat	floxif

ACProtect 1.3x - 1.4x DLL software 1 IoCs

Detects file using ACProtect software.

resource	yara_rule
behavioral2/files/0x00090000000233fa-1.dat	acprotect

Loads dropped DLL 1 IoCs

pid	Process
1360	2024-08-12_ce2e61494539be8b47b974cb6db3c562_floxif_hijackloader_mafia.exe

UPX packed file 3 IoCs

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

upx

resource	yara_rule
behavioral2/files/0x00090000000233fa-1.dat	upx
behavioral2/memory/1360-4-0x0000000010000000-0x0000000010030000-memory.dmp	upx
behavioral2/memory/1360-9-0x0000000010000000-0x0000000010030000-memory.dmp	upx

Drops file in Program Files directory 1 IoCs

description	ioc	Process
File created	C:\Program Files\Common Files\System\symsrv.dll	2024-08-12_ce2e61494539be8b47b974cb6db3c562_floxif_hijackloader_mafia.exe

Program crash 2 IoCs

pid	pid_target	Process	procid_target
2472	1360	WerFault.exe	83
232	1360	WerFault.exe	83

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	2024-08-12_ce2e61494539be8b47b974cb6db3c562_floxif_hijackloader_mafia.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1360	2024-08-12_ce2e61494539be8b47b974cb6db3c562_floxif_hijackloader_mafia.exe
1360	2024-08-12_ce2e61494539be8b47b974cb6db3c562_floxif_hijackloader_mafia.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1360	2024-08-12_ce2e61494539be8b47b974cb6db3c562_floxif_hijackloader_mafia.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1360	2024-08-12_ce2e61494539be8b47b974cb6db3c562_floxif_hijackloader_mafia.exe

C:\Users\Admin\AppData\Local\Temp\2024-08-12_ce2e61494539be8b47b974cb6db3c562_floxif_hijackloader_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2024-08-12_ce2e61494539be8b47b974cb6db3c562_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:1360
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1360 -s 816
  2⤵
  - Program crash
  PID:2472
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1360 -s 828
  2⤵
  - Program crash
  PID:232

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 1360 -ip 1360
1⤵
PID:4936

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 484 -p 1360 -ip 1360
1⤵
PID:3416

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/1360-4-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download
memory/1360-6-0x0000000000D41000-0x0000000000D42000-memory.dmp

Filesize
4KB

Download
memory/1360-9-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download
memory/1360-7-0x0000000000D40000-0x0000000000FE8000-memory.dmp

Filesize
2.7MB

Download