floxif | 79056ee2ed070c708a1639843bdd14d574d7d0007e4f1bbe11b01a0a9ad014aa

General

Target

2024-12-10_50795b684000a25dad865a09be39d5ac_floxif_mafia.exe
Size

1.8MB
MD5

50795b684000a25dad865a09be39d5ac
SHA1

849518b3a4a1a0af5a14de32945538d7ce258b15
SHA256

79056ee2ed070c708a1639843bdd14d574d7d0007e4f1bbe11b01a0a9ad014aa
SHA512

ea01f9b96256839d2910bc9c4c52a65f2c5d46db902f5e20329af8464777e6af934f847359e15aaf1c83240ca3e446a5a1f2a56eaf0cb48914bbcfb253d22261
SSDEEP

49152:mSRFWpiINDnQOklug56b5KEZccMqR2OdWc9hK/9pjDgO/rF9sSV2Rc:mwWpiINnGll6b5KEO5qR9dWP/9pQO/rR

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/0x000b000000023cb6-1.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/0x000b000000023cb6-1.dat	acprotect

Loads dropped DLL 5 IoCs

pid	Process
1204	2024-12-10_50795b684000a25dad865a09be39d5ac_floxif_mafia.exe
5112	WerFault.exe
4984	WerFault.exe
1444	WerFault.exe
1476	WerFault.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:	2024-12-10_50795b684000a25dad865a09be39d5ac_floxif_mafia.exe

UPX packed file 3 IoCs

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

upx

resource	yara_rule
behavioral2/memory/1204-4-0x0000000010000000-0x0000000010030000-memory.dmp	upx
behavioral2/files/0x000b000000023cb6-1.dat	upx
behavioral2/memory/1204-17-0x0000000010000000-0x0000000010030000-memory.dmp	upx

Drops file in Program Files directory 1 IoCs

description	ioc	Process
File created	C:\Program Files\Common Files\System\symsrv.dll	2024-12-10_50795b684000a25dad865a09be39d5ac_floxif_mafia.exe

Program crash 2 IoCs

pid	pid_target	Process	procid_target
4984	1204	WerFault.exe	82
1476	1204	WerFault.exe	82

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	2024-12-10_50795b684000a25dad865a09be39d5ac_floxif_mafia.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1204	2024-12-10_50795b684000a25dad865a09be39d5ac_floxif_mafia.exe
1204	2024-12-10_50795b684000a25dad865a09be39d5ac_floxif_mafia.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1204	2024-12-10_50795b684000a25dad865a09be39d5ac_floxif_mafia.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
1204	2024-12-10_50795b684000a25dad865a09be39d5ac_floxif_mafia.exe
1204	2024-12-10_50795b684000a25dad865a09be39d5ac_floxif_mafia.exe

C:\Users\Admin\AppData\Local\Temp\2024-12-10_50795b684000a25dad865a09be39d5ac_floxif_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2024-12-10_50795b684000a25dad865a09be39d5ac_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
- Suspicious use of SetWindowsHookEx
PID:1204
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1204 -s 1524
  2⤵
  - Loads dropped DLL
  - Program crash
  PID:4984
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1204 -s 1532
  2⤵
  - Loads dropped DLL
  - Program crash
  PID:1476

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 1204 -ip 1204
1⤵
- Loads dropped DLL
PID:5112

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 504 -p 1204 -ip 1204
1⤵
- Loads dropped DLL
PID:1444

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Event Triggered Execution

1

T1546

AppInit DLLs

1

T1546.010

Privilege Escalation

Event Triggered Execution

1

T1546

AppInit DLLs

1

T1546.010

Defense Evasion

Credential Access

Discovery

Peripheral Device Discovery

Query Registry

System Information Discovery

1

T1082

System Location Discovery

1

T1614

System Language Discovery

1

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/1204-4-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download
memory/1204-6-0x0000000000631000-0x0000000000632000-memory.dmp

Filesize
4KB

Download
memory/1204-17-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download
memory/1204-15-0x0000000000630000-0x00000000007E9000-memory.dmp

Filesize
1.7MB

Download

Analysis

Sharing