floxif | 39286cf0ae74ab2015c531d31f3f0e515117d4a2892ec93db8302cceb25d0bdd

Analysis

max time kernel
149s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20250129-en
resource tags

arch:x64arch:x86image:win10v2004-20250129-enlocale:en-usos:windows10-2004-x64system
submitted
31-01-2025 10:28

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General

Target

2025-01-31_32e1e4b558a6abbd1c1bd952fcddcf4a_floxif_hijackloader_mafia.exe
Size

2.7MB
MD5

32e1e4b558a6abbd1c1bd952fcddcf4a
SHA1

5b5a2524a9f52df932194b125cca3d7b236d30bc
SHA256

39286cf0ae74ab2015c531d31f3f0e515117d4a2892ec93db8302cceb25d0bdd
SHA512

e3157f4874293c5c3ba8ec03df090cbbc43a9aceff2aa44f2678842b4f6e02cd0c014fb9223f4c88384d82a5947d7629b8b98738b9ac4d47791546a2ff5b1179
SSDEEP

49152:2Pf6VdMQTNRbg23shkNw//7vg5qziRS1UsrzoeNFZen5c71y9Bx4M3W/KMZKWKKC:2q1Rz3ssw//7vg5qziRS1UsrzppQ5y1Y

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/0x0018000000023c32-1.dat	floxif

ACProtect 1.3x - 1.4x DLL software 1 IoCs

Detects file using ACProtect software.

resource	yara_rule
behavioral2/files/0x0018000000023c32-1.dat	acprotect

Loads dropped DLL 1 IoCs

pid	Process
1984	2025-01-31_32e1e4b558a6abbd1c1bd952fcddcf4a_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/0x0018000000023c32-1.dat	upx
behavioral2/memory/1984-4-0x0000000010000000-0x0000000010030000-memory.dmp	upx
behavioral2/memory/1984-10-0x0000000010000000-0x0000000010030000-memory.dmp	upx

Drops file in Program Files directory 1 IoCs

description	ioc	Process
File created	C:\Program Files\Common Files\System\symsrv.dll	2025-01-31_32e1e4b558a6abbd1c1bd952fcddcf4a_floxif_hijackloader_mafia.exe

Program crash 2 IoCs

pid	pid_target	Process	procid_target
4756	1984	WerFault.exe	82
1948	1984	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	2025-01-31_32e1e4b558a6abbd1c1bd952fcddcf4a_floxif_hijackloader_mafia.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1984	2025-01-31_32e1e4b558a6abbd1c1bd952fcddcf4a_floxif_hijackloader_mafia.exe
1984	2025-01-31_32e1e4b558a6abbd1c1bd952fcddcf4a_floxif_hijackloader_mafia.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1984	2025-01-31_32e1e4b558a6abbd1c1bd952fcddcf4a_floxif_hijackloader_mafia.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1984	2025-01-31_32e1e4b558a6abbd1c1bd952fcddcf4a_floxif_hijackloader_mafia.exe

C:\Users\Admin\AppData\Local\Temp\2025-01-31_32e1e4b558a6abbd1c1bd952fcddcf4a_floxif_hijackloader_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-01-31_32e1e4b558a6abbd1c1bd952fcddcf4a_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:1984
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1984 -s 812
  2⤵
  - Program crash
  PID:4756
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1984 -s 800
  2⤵
  - Program crash
  PID:1948

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 1984 -ip 1984
1⤵
PID:4928

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 520 -p 1984 -ip 1984
1⤵
PID:2392

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/1984-4-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download
memory/1984-6-0x0000000000621000-0x0000000000622000-memory.dmp

Filesize
4KB

Download
memory/1984-10-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download
memory/1984-8-0x0000000000620000-0x00000000008C8000-memory.dmp

Filesize
2.7MB

Download