floxif | c1bb51e80f3b31e9d2f083b47fdf2d41e294c9f600d24633cad458ce9335a76a

Analysis

max time kernel
149s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
27/01/2025, 18:29

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General

Target

2025-01-27_1018ebe23e491f349a7d8665bcfc4e48_floxif_mafia.exe
Size

4.6MB
MD5

1018ebe23e491f349a7d8665bcfc4e48
SHA1

ae231a3b4de8095458928f30b8f673164d05fa1c
SHA256

c1bb51e80f3b31e9d2f083b47fdf2d41e294c9f600d24633cad458ce9335a76a
SHA512

2a1218f5947ff52d6f84d67b8a268a5fc1283615618469871e12bc9743b5730f569a7f30d7b0f4aea492c04fc1ab101752ddb3ad0d5ee7bfbcadebe071871ccf
SSDEEP

98304:MOR2DCuKXZr82AKRFA/grN1JNTEM9t9YcSrUCAviXvTvXauWCr1pcgD5Owk86j/:vpu+kANPtorUCAsTvXaRCVOPJj/

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/0x000a000000023bfc-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/0x000a000000023bfc-1.dat	acprotect

Loads dropped DLL 5 IoCs

pid	Process
684	2025-01-27_1018ebe23e491f349a7d8665bcfc4e48_floxif_mafia.exe
1152	WerFault.exe
3460	WerFault.exe
4808	WerFault.exe
4504	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:	2025-01-27_1018ebe23e491f349a7d8665bcfc4e48_floxif_mafia.exe

UPX packed file 3 IoCs

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

upx

resource	yara_rule
behavioral2/files/0x000a000000023bfc-1.dat	upx
behavioral2/memory/684-3-0x0000000010000000-0x0000000010030000-memory.dmp	upx
behavioral2/memory/684-16-0x0000000010000000-0x0000000010030000-memory.dmp	upx

Drops file in Program Files directory 1 IoCs

description	ioc	Process
File created	C:\Program Files\Common Files\System\symsrv.dll	2025-01-27_1018ebe23e491f349a7d8665bcfc4e48_floxif_mafia.exe

Program crash 2 IoCs

pid	pid_target	Process	procid_target
3460	684	WerFault.exe	81
4504	684	WerFault.exe	81

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	2025-01-27_1018ebe23e491f349a7d8665bcfc4e48_floxif_mafia.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
684	2025-01-27_1018ebe23e491f349a7d8665bcfc4e48_floxif_mafia.exe
684	2025-01-27_1018ebe23e491f349a7d8665bcfc4e48_floxif_mafia.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	684	2025-01-27_1018ebe23e491f349a7d8665bcfc4e48_floxif_mafia.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
684	2025-01-27_1018ebe23e491f349a7d8665bcfc4e48_floxif_mafia.exe

C:\Users\Admin\AppData\Local\Temp\2025-01-27_1018ebe23e491f349a7d8665bcfc4e48_floxif_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-01-27_1018ebe23e491f349a7d8665bcfc4e48_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:684
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 684 -s 724
  2⤵
  - Loads dropped DLL
  - Program crash
  PID:3460
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 684 -s 872
  2⤵
  - Loads dropped DLL
  - Program crash
  PID:4504

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 372 -p 684 -ip 684
1⤵
- Loads dropped DLL
PID:1152

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 492 -p 684 -ip 684
1⤵
- Loads dropped DLL
PID:4808

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

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/684-3-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download
memory/684-9-0x0000000000822000-0x0000000000823000-memory.dmp

Filesize
4KB

Download
memory/684-16-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download
memory/684-14-0x0000000000820000-0x0000000000CAF000-memory.dmp

Filesize
4.6MB

Download