floxif | f5667c77440b78116e22af8be02b073c30e0775c9405bee9d577c8f6355b2282

Analysis

max time kernel
93s
max time network
145s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
31-12-2024 01:57

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General

Target

2024-12-31_ef953744871e6a4ef3940c3a367980e6_floxif_mafia.exe
Size

272KB
MD5

ef953744871e6a4ef3940c3a367980e6
SHA1

8d6d2f017be97ebb725ab92164780699720b5e71
SHA256

f5667c77440b78116e22af8be02b073c30e0775c9405bee9d577c8f6355b2282
SHA512

135e049e4e903b819454ce6f06d348205ab8243bdf1a57499a38097cb6686a3cc0e1151ec0ef86172796a6aa56f623a10c7cc2bb78d2820d2d9a7d5bf214cac0
SSDEEP

6144:2MMZlyIxCydDfkTEUET+l2AbpLk0cusQvMRlkM4RD/qzMfU3:zMZl0okT1KG2qk0nMRGM4h/qofe

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/0x000d000000023b68-1.dat	floxif

ACProtect 1.3x - 1.4x DLL software 1 IoCs

Detects file using ACProtect software.

resource	yara_rule
behavioral2/files/0x000d000000023b68-1.dat	acprotect

Loads dropped DLL 1 IoCs

pid	Process
2852	2024-12-31_ef953744871e6a4ef3940c3a367980e6_floxif_mafia.exe

Network Service Discovery 1 TTPs 1 IoCs

Attempt to gather information on host's network.

discovery

Network Service Discovery

T1046

pid	Process
1020	arp.exe

UPX packed file 3 IoCs

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

upx

resource	yara_rule
behavioral2/files/0x000d000000023b68-1.dat	upx
behavioral2/memory/2852-4-0x0000000010000000-0x0000000010033000-memory.dmp	upx
behavioral2/memory/2852-9-0x0000000010000000-0x0000000010033000-memory.dmp	upx

Drops file in Program Files directory 1 IoCs

description	ioc	Process
File created	C:\Program Files\Common Files\System\symsrv.dll	2024-12-31_ef953744871e6a4ef3940c3a367980e6_floxif_mafia.exe

System Location Discovery: System Language Discovery 1 TTPs 2 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	2024-12-31_ef953744871e6a4ef3940c3a367980e6_floxif_mafia.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	arp.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2852	2024-12-31_ef953744871e6a4ef3940c3a367980e6_floxif_mafia.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 2852 wrote to memory of 1020	2852	2024-12-31_ef953744871e6a4ef3940c3a367980e6_floxif_mafia.exe	82
PID 2852 wrote to memory of 1020	2852	2024-12-31_ef953744871e6a4ef3940c3a367980e6_floxif_mafia.exe	82
PID 2852 wrote to memory of 1020	2852	2024-12-31_ef953744871e6a4ef3940c3a367980e6_floxif_mafia.exe	82

C:\Users\Admin\AppData\Local\Temp\2024-12-31_ef953744871e6a4ef3940c3a367980e6_floxif_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2024-12-31_ef953744871e6a4ef3940c3a367980e6_floxif_mafia.exe"
1⤵
- Loads dropped DLL
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2852
- C:\Windows\SysWOW64\arp.exe
  arp -a
  2⤵
  - Network Service Discovery
  - System Location Discovery: System Language Discovery
  PID:1020

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Network Service Discovery

T1046

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
71KB

MD5
4fcd7574537cebec8e75b4e646996643

SHA1
efa59bb9050fb656b90d5d40c942fb2a304f2a8b

SHA256
8ea3b17e4b783ffc0bc387b81b823bf87af0d57da74541d88ba85314bb232a5d

SHA512
7f1a7ef64d332a735db82506b47d84853af870785066d29ccaf4fdeab114079a9f0db400e01ba574776a0d652a248658fe1e8f9659cdced19ad6eea09644ea3e

Download Submit
memory/2852-4-0x0000000010000000-0x0000000010033000-memory.dmp

Filesize
204KB

Download
memory/2852-6-0x0000000000E71000-0x0000000000E72000-memory.dmp

Filesize
4KB

Download
memory/2852-9-0x0000000010000000-0x0000000010033000-memory.dmp

Filesize
204KB

Download
memory/2852-7-0x0000000000E70000-0x0000000000EA2000-memory.dmp

Filesize
200KB

Download