floxif | 418ad38e013e35cfb2411e1671fe2a690642f9fcea9f89323cbbdcd4dc5d972a

General

Target

2025-01-02_989d72f8aedd16d8b89893ff87a866b4_floxif_mafia.exe
Size

2.5MB
MD5

989d72f8aedd16d8b89893ff87a866b4
SHA1

766f7e34007c89c51ce1f238dff986dd20c8b37f
SHA256

418ad38e013e35cfb2411e1671fe2a690642f9fcea9f89323cbbdcd4dc5d972a
SHA512

c2b255f163fbaff9dceed2c0989927fe1712bdd5c9b8dabc5f03753481faaa45423a673ad440273a230521edbbbb1eea982337d1929f3ccf4f6f71fbfd98a01f
SSDEEP

49152:tutIKQofs2hPd2l177BTK2VbDsar1YDj0:t2Bfs2hPIl1/r

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/0x000c000000023b2e-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/0x000c000000023b2e-1.dat	acprotect

Loads dropped DLL 8 IoCs

pid	Process
3752	2025-01-02_989d72f8aedd16d8b89893ff87a866b4_floxif_mafia.exe
4896	WerFault.exe
1416	WerFault.exe
448	WerFault.exe
2008	WerFault.exe
4700	WerFault.exe
2460	WerFault.exe
2748	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:	2025-01-02_989d72f8aedd16d8b89893ff87a866b4_floxif_mafia.exe

UPX packed file 3 IoCs

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

upx

resource	yara_rule
behavioral2/files/0x000c000000023b2e-1.dat	upx
behavioral2/memory/3752-4-0x0000000010000000-0x0000000010030000-memory.dmp	upx
behavioral2/memory/3752-20-0x0000000010000000-0x0000000010030000-memory.dmp	upx

Drops file in Program Files directory 2 IoCs

description	ioc	Process
File created	C:\Program Files\Common Files\System\symsrv.dll	2025-01-02_989d72f8aedd16d8b89893ff87a866b4_floxif_mafia.exe
File created	\??\c:\program files\common files\system\symsrv.dll.000	2025-01-02_989d72f8aedd16d8b89893ff87a866b4_floxif_mafia.exe

Program crash 3 IoCs

pid	pid_target	Process	procid_target
448	3752	WerFault.exe	82
2008	3752	WerFault.exe	82
2460	3752	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	2025-01-02_989d72f8aedd16d8b89893ff87a866b4_floxif_mafia.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
3752	2025-01-02_989d72f8aedd16d8b89893ff87a866b4_floxif_mafia.exe
3752	2025-01-02_989d72f8aedd16d8b89893ff87a866b4_floxif_mafia.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3752	2025-01-02_989d72f8aedd16d8b89893ff87a866b4_floxif_mafia.exe

C:\Users\Admin\AppData\Local\Temp\2025-01-02_989d72f8aedd16d8b89893ff87a866b4_floxif_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-01-02_989d72f8aedd16d8b89893ff87a866b4_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
PID:3752
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3752 -s 1544
  2⤵
  - Loads dropped DLL
  - Program crash
  PID:448
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3752 -s 1560
  2⤵
  - Loads dropped DLL
  - Program crash
  PID:2008
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3752 -s 1572
  2⤵
  - Loads dropped DLL
  - Program crash
  PID:2460

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 428 -p 3752 -ip 3752
1⤵
- Loads dropped DLL
PID:1416

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 3752 -ip 3752
1⤵
- Loads dropped DLL
PID:4896

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 3752 -ip 3752
1⤵
- Loads dropped DLL
PID:4700

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 592 -p 3752 -ip 3752
1⤵
- Loads dropped DLL
PID:2748

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/3752-4-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download
memory/3752-6-0x0000000000861000-0x0000000000862000-memory.dmp

Filesize
4KB

Download
memory/3752-18-0x0000000000860000-0x0000000000ACA000-memory.dmp

Filesize
2.4MB

Download
memory/3752-20-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download

Analysis

Sharing