floxif | 0b6ac457442e406023015b6dabc26a2718efd57d3df880dee80649aa86bce911

Analysis

max time kernel
149s
max time network
149s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
30-12-2024 12:26

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

2024-12-30_11893b09ff9dee7d4a5bf23de42bc357_floxif_hijackloader_mafia.exe
Size

2.7MB
MD5

11893b09ff9dee7d4a5bf23de42bc357
SHA1

59921fcd291f3923b09bc047d4f69abd164d9988
SHA256

0b6ac457442e406023015b6dabc26a2718efd57d3df880dee80649aa86bce911
SHA512

9b3cb7d035be73423da053b108c3ee466fd54b88e1eb23b53bd956be7ff633c5ef5fda96829ba15627203e4bdaa891fe202f68306cea8634b043ca501e81070b
SSDEEP

49152:KaSofyDdWWqJXBhgmvQojZ2toFPVmyN8yrOf23P2yYI1m7B5lcdtH9jR9W/KMZKi:LudEBhzQoMtoFPVmyN8yrOf23O8s77l7

Score

10^/10

floxif backdoor discovery persistence privilege_escalation 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/0x0009000000023c35-1.dat	floxif

Event Triggered Execution: AppInit DLLs 1 TTPs
Adversaries may establish persistence and/or elevate privileges by executing malicious content triggered by AppInit DLLs loaded into processes.
persistence privilege_escalation

AppInit DLLs
T1546.010

ACProtect 1.3x - 1.4x DLL software 1 IoCs

Detects file using ACProtect software.

resource	yara_rule
behavioral2/files/0x0009000000023c35-1.dat	acprotect

Loads dropped DLL 5 IoCs

pid	Process
520	2024-12-30_11893b09ff9dee7d4a5bf23de42bc357_floxif_hijackloader_mafia.exe
4788	WerFault.exe
4592	WerFault.exe
3024	WerFault.exe
4936	WerFault.exe

UPX packed file 3 IoCs

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

upx

resource	yara_rule
behavioral2/files/0x0009000000023c35-1.dat	upx
behavioral2/memory/520-4-0x0000000010000000-0x0000000010030000-memory.dmp	upx
behavioral2/memory/520-13-0x0000000010000000-0x0000000010030000-memory.dmp	upx

Drops file in Program Files directory 1 IoCs

description	ioc	Process
File created	C:\Program Files\Common Files\System\symsrv.dll	2024-12-30_11893b09ff9dee7d4a5bf23de42bc357_floxif_hijackloader_mafia.exe

Program crash 2 IoCs

pid	pid_target	Process	procid_target
4592	520	WerFault.exe	83
4936	520	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	2024-12-30_11893b09ff9dee7d4a5bf23de42bc357_floxif_hijackloader_mafia.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
520	2024-12-30_11893b09ff9dee7d4a5bf23de42bc357_floxif_hijackloader_mafia.exe
520	2024-12-30_11893b09ff9dee7d4a5bf23de42bc357_floxif_hijackloader_mafia.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	520	2024-12-30_11893b09ff9dee7d4a5bf23de42bc357_floxif_hijackloader_mafia.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
520	2024-12-30_11893b09ff9dee7d4a5bf23de42bc357_floxif_hijackloader_mafia.exe

C:\Users\Admin\AppData\Local\Temp\2024-12-30_11893b09ff9dee7d4a5bf23de42bc357_floxif_hijackloader_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2024-12-30_11893b09ff9dee7d4a5bf23de42bc357_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:520
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 520 -s 812
  2⤵
  - Loads dropped DLL
  - Program crash
  PID:4592
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 520 -s 816
  2⤵
  - Loads dropped DLL
  - Program crash
  PID:4936

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 520 -ip 520
1⤵
- Loads dropped DLL
PID:4788

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 480 -p 520 -ip 520
1⤵
- Loads dropped DLL
PID:3024

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Event Triggered Execution

T1546

AppInit DLLs

T1546.010

Privilege Escalation

Event Triggered Execution

T1546

AppInit DLLs

T1546.010

Defense Evasion

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

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

Filesize
67KB

MD5
7574cf2c64f35161ab1292e2f532aabf

SHA1
14ba3fa927a06224dfe587014299e834def4644f

SHA256
de055a89de246e629a8694bde18af2b1605e4b9b493c7e4aef669dd67acf5085

SHA512
4db19f2d8d5bc1c7bbb812d3fa9c43b80fa22140b346d2760f090b73aed8a5177edb4bddc647a6ebd5a2db8565be5a1a36a602b0d759e38540d9a584ba5896ab

Download Submit
memory/520-4-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download
memory/520-6-0x0000000000CF1000-0x0000000000CF2000-memory.dmp

Filesize
4KB

Download
memory/520-13-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download
memory/520-11-0x0000000000CF0000-0x0000000000F98000-memory.dmp

Filesize
2.7MB

Download