floxif | 41028428adc18ef9e77bf0c0eac10f261b5481eecbb4db7ccead69c3601e6d52

Analysis

max time kernel
92s
max time network
157s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
26-12-2024 13:25

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General

Target

2024-12-26_3afc8d75a1ea87c6506777ddc2d8ae2a_floxif_mafia.exe
Size

706KB
MD5

3afc8d75a1ea87c6506777ddc2d8ae2a
SHA1

292e955518e885909accc15b85fa304f772310f9
SHA256

41028428adc18ef9e77bf0c0eac10f261b5481eecbb4db7ccead69c3601e6d52
SHA512

dc82219e910bdef7cf633b5dc8fad63339d2c12a53dd19cd4a3d0f510acf585098b84bca771e190d03208e555de2c7ec31f1f4f300945e54a2b2cc596156fd1a
SSDEEP

12288:up9kyGSuznDK9lEj3mQsUjAtGoCrX2gt5vM0D423BjvrEH7jFC:up99Mea3HsU0t8y4tM0D42VrEH7j8

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/0x000c000000023b54-1.dat	floxif

ACProtect 1.3x - 1.4x DLL software 1 IoCs

Detects file using ACProtect software.

resource	yara_rule
behavioral2/files/0x000c000000023b54-1.dat	acprotect

Loads dropped DLL 1 IoCs

pid	Process
4356	2024-12-26_3afc8d75a1ea87c6506777ddc2d8ae2a_floxif_mafia.exe

UPX packed file 3 IoCs

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

upx

resource	yara_rule
behavioral2/files/0x000c000000023b54-1.dat	upx
behavioral2/memory/4356-2-0x0000000010000000-0x0000000010030000-memory.dmp	upx
behavioral2/memory/4356-9-0x0000000010000000-0x0000000010030000-memory.dmp	upx

Drops file in Program Files directory 1 IoCs

description	ioc	Process
File created	C:\Program Files\Common Files\System\symsrv.dll	2024-12-26_3afc8d75a1ea87c6506777ddc2d8ae2a_floxif_mafia.exe

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	2024-12-26_3afc8d75a1ea87c6506777ddc2d8ae2a_floxif_mafia.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4356	2024-12-26_3afc8d75a1ea87c6506777ddc2d8ae2a_floxif_mafia.exe

C:\Users\Admin\AppData\Local\Temp\2024-12-26_3afc8d75a1ea87c6506777ddc2d8ae2a_floxif_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2024-12-26_3afc8d75a1ea87c6506777ddc2d8ae2a_floxif_mafia.exe"
1⤵
- Loads dropped DLL
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
PID:4356

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/4356-2-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download
memory/4356-6-0x0000000000601000-0x0000000000602000-memory.dmp

Filesize
4KB

Download
memory/4356-7-0x0000000000600000-0x000000000069F000-memory.dmp

Filesize
636KB

Download
memory/4356-9-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download