floxif | 8a93e7049686689b1c0030392dd1a78d4bf8c0f44f6265f3832c580493dbabca

Analysis

max time kernel
94s
max time network
133s
platform
windows10-2004_x64
resource
win10v2004-20250129-en
resource tags

arch:x64arch:x86image:win10v2004-20250129-enlocale:en-usos:windows10-2004-x64system
submitted
02-02-2025 15:24

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General

Target

2025-02-02_174d1f32300fee312bea1ac171db13c5_floxif_mafia.exe
Size

2.5MB
MD5

174d1f32300fee312bea1ac171db13c5
SHA1

efd0e1097f69734ee0616421a7a5f5d7ff7928cc
SHA256

8a93e7049686689b1c0030392dd1a78d4bf8c0f44f6265f3832c580493dbabca
SHA512

4152f2d90e82f39b8d8568b28831f5c935f911a95b197ee174cd505e88b8f2b21fb7f9a1c02174f039398eadc0a0b2ffc68aa1f49b5a4a4ea09b92ed087b0eeb
SSDEEP

49152:tuIeKlofs2hPd2l177BTK2VbDsar1YDjQ:tjufs2hPIl1/L

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/0x000d000000023b72-1.dat	floxif

ACProtect 1.3x - 1.4x DLL software 1 IoCs

Detects file using ACProtect software.

resource	yara_rule
behavioral2/files/0x000d000000023b72-1.dat	acprotect

Loads dropped DLL 1 IoCs

pid	Process
1116	2025-02-02_174d1f32300fee312bea1ac171db13c5_floxif_mafia.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:	2025-02-02_174d1f32300fee312bea1ac171db13c5_floxif_mafia.exe

UPX packed file 3 IoCs

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

upx

resource	yara_rule
behavioral2/memory/1116-4-0x0000000010000000-0x0000000010030000-memory.dmp	upx
behavioral2/files/0x000d000000023b72-1.dat	upx
behavioral2/memory/1116-13-0x0000000010000000-0x0000000010030000-memory.dmp	upx

Drops file in Program Files directory 1 IoCs

description	ioc	Process
File created	C:\Program Files\Common Files\System\symsrv.dll	2025-02-02_174d1f32300fee312bea1ac171db13c5_floxif_mafia.exe

Program crash 3 IoCs

pid	pid_target	Process	procid_target
224	1116	WerFault.exe	83
1740	1116	WerFault.exe	83
2216	1116	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	2025-02-02_174d1f32300fee312bea1ac171db13c5_floxif_mafia.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1116	2025-02-02_174d1f32300fee312bea1ac171db13c5_floxif_mafia.exe
1116	2025-02-02_174d1f32300fee312bea1ac171db13c5_floxif_mafia.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1116	2025-02-02_174d1f32300fee312bea1ac171db13c5_floxif_mafia.exe

C:\Users\Admin\AppData\Local\Temp\2025-02-02_174d1f32300fee312bea1ac171db13c5_floxif_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-02-02_174d1f32300fee312bea1ac171db13c5_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:1116
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1116 -s 1504
  2⤵
  - Program crash
  PID:224
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1116 -s 1520
  2⤵
  - Program crash
  PID:1740
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1116 -s 1532
  2⤵
  - Program crash
  PID:2216

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 456 -p 1116 -ip 1116
1⤵
PID:4996

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 412 -p 1116 -ip 1116
1⤵
PID:4460

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 1116 -ip 1116
1⤵
PID:2100

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 564 -p 1116 -ip 1116
1⤵
PID:2876

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Peripheral Device Discovery

T1120

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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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/1116-4-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download
memory/1116-6-0x00000000008E1000-0x00000000008E2000-memory.dmp

Filesize
4KB

Download
memory/1116-13-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download
memory/1116-11-0x00000000008E0000-0x0000000000B4A000-memory.dmp

Filesize
2.4MB

Download