floxif | afbe9d9ccd4b3d867617a6f6ffab8d33cbfa51ba8b2dc86304bed22472696c44

Analysis

max time kernel
148s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
03-01-2025 02:31

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General

Target

afbe9d9ccd4b3d867617a6f6ffab8d33cbfa51ba8b2dc86304bed22472696c44.exe
Size

304KB
MD5

99a8f9b0744a9bd51daefd91895fc65b
SHA1

0cd4cbcda345917f91b6b246d4b50e75e148457a
SHA256

afbe9d9ccd4b3d867617a6f6ffab8d33cbfa51ba8b2dc86304bed22472696c44
SHA512

941e3cf23700207a17647d854b6184969e709af0f6ddb3029276be6be0b1602ddc786f401cc1dc9a08a464ee546b2d517eefc98bd1baa84bd3ae831e92c24420
SSDEEP

3072:XLWyS8fUjVkmmdzjsQvVqRlkM4OAD/KLznBuB2JA2BjZ1G:ayTfURkJsQvMRlkM4RD/qzMfUN1G

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/0x0009000000023c64-1.dat	floxif

ACProtect 1.3x - 1.4x DLL software 1 IoCs

Detects file using ACProtect software.

resource	yara_rule
behavioral2/files/0x0009000000023c64-1.dat	acprotect

Loads dropped DLL 1 IoCs

pid	Process
2120	afbe9d9ccd4b3d867617a6f6ffab8d33cbfa51ba8b2dc86304bed22472696c44.exe

Network Service Discovery 1 TTPs 9 IoCs

Attempt to gather information on host's network.

discovery

Network Service Discovery

T1046

pid	Process
3628	arp.exe
4948	arp.exe
2336	arp.exe
1096	arp.exe
3004	arp.exe
228	arp.exe
2428	arp.exe
3000	arp.exe
3532	arp.exe

UPX packed file 3 IoCs

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

upx

resource	yara_rule
behavioral2/files/0x0009000000023c64-1.dat	upx
behavioral2/memory/2120-4-0x0000000010000000-0x0000000010033000-memory.dmp	upx
behavioral2/memory/2120-11-0x0000000010000000-0x0000000010033000-memory.dmp	upx

Drops file in Program Files directory 1 IoCs

description	ioc	Process
File created	C:\Program Files\Common Files\System\symsrv.dll	afbe9d9ccd4b3d867617a6f6ffab8d33cbfa51ba8b2dc86304bed22472696c44.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File opened for modification	\??\c:\windows\windows.exe	afbe9d9ccd4b3d867617a6f6ffab8d33cbfa51ba8b2dc86304bed22472696c44.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 10 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	arp.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	arp.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	arp.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	arp.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	arp.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	arp.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	arp.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	arp.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	arp.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	afbe9d9ccd4b3d867617a6f6ffab8d33cbfa51ba8b2dc86304bed22472696c44.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2120	afbe9d9ccd4b3d867617a6f6ffab8d33cbfa51ba8b2dc86304bed22472696c44.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2120	afbe9d9ccd4b3d867617a6f6ffab8d33cbfa51ba8b2dc86304bed22472696c44.exe

Suspicious use of WriteProcessMemory 27 IoCs

description	pid	Process	procid_target
PID 2120 wrote to memory of 3532	2120	afbe9d9ccd4b3d867617a6f6ffab8d33cbfa51ba8b2dc86304bed22472696c44.exe	85
PID 2120 wrote to memory of 3532	2120	afbe9d9ccd4b3d867617a6f6ffab8d33cbfa51ba8b2dc86304bed22472696c44.exe	85
PID 2120 wrote to memory of 3532	2120	afbe9d9ccd4b3d867617a6f6ffab8d33cbfa51ba8b2dc86304bed22472696c44.exe	85
PID 2120 wrote to memory of 3000	2120	afbe9d9ccd4b3d867617a6f6ffab8d33cbfa51ba8b2dc86304bed22472696c44.exe	87
PID 2120 wrote to memory of 3000	2120	afbe9d9ccd4b3d867617a6f6ffab8d33cbfa51ba8b2dc86304bed22472696c44.exe	87
PID 2120 wrote to memory of 3000	2120	afbe9d9ccd4b3d867617a6f6ffab8d33cbfa51ba8b2dc86304bed22472696c44.exe	87
PID 2120 wrote to memory of 2428	2120	afbe9d9ccd4b3d867617a6f6ffab8d33cbfa51ba8b2dc86304bed22472696c44.exe	88
PID 2120 wrote to memory of 2428	2120	afbe9d9ccd4b3d867617a6f6ffab8d33cbfa51ba8b2dc86304bed22472696c44.exe	88
PID 2120 wrote to memory of 2428	2120	afbe9d9ccd4b3d867617a6f6ffab8d33cbfa51ba8b2dc86304bed22472696c44.exe	88
PID 2120 wrote to memory of 3004	2120	afbe9d9ccd4b3d867617a6f6ffab8d33cbfa51ba8b2dc86304bed22472696c44.exe	89
PID 2120 wrote to memory of 3004	2120	afbe9d9ccd4b3d867617a6f6ffab8d33cbfa51ba8b2dc86304bed22472696c44.exe	89
PID 2120 wrote to memory of 3004	2120	afbe9d9ccd4b3d867617a6f6ffab8d33cbfa51ba8b2dc86304bed22472696c44.exe	89
PID 2120 wrote to memory of 3628	2120	afbe9d9ccd4b3d867617a6f6ffab8d33cbfa51ba8b2dc86304bed22472696c44.exe	90
PID 2120 wrote to memory of 3628	2120	afbe9d9ccd4b3d867617a6f6ffab8d33cbfa51ba8b2dc86304bed22472696c44.exe	90
PID 2120 wrote to memory of 3628	2120	afbe9d9ccd4b3d867617a6f6ffab8d33cbfa51ba8b2dc86304bed22472696c44.exe	90
PID 2120 wrote to memory of 4948	2120	afbe9d9ccd4b3d867617a6f6ffab8d33cbfa51ba8b2dc86304bed22472696c44.exe	91
PID 2120 wrote to memory of 4948	2120	afbe9d9ccd4b3d867617a6f6ffab8d33cbfa51ba8b2dc86304bed22472696c44.exe	91
PID 2120 wrote to memory of 4948	2120	afbe9d9ccd4b3d867617a6f6ffab8d33cbfa51ba8b2dc86304bed22472696c44.exe	91
PID 2120 wrote to memory of 2336	2120	afbe9d9ccd4b3d867617a6f6ffab8d33cbfa51ba8b2dc86304bed22472696c44.exe	92
PID 2120 wrote to memory of 2336	2120	afbe9d9ccd4b3d867617a6f6ffab8d33cbfa51ba8b2dc86304bed22472696c44.exe	92
PID 2120 wrote to memory of 2336	2120	afbe9d9ccd4b3d867617a6f6ffab8d33cbfa51ba8b2dc86304bed22472696c44.exe	92
PID 2120 wrote to memory of 1096	2120	afbe9d9ccd4b3d867617a6f6ffab8d33cbfa51ba8b2dc86304bed22472696c44.exe	93
PID 2120 wrote to memory of 1096	2120	afbe9d9ccd4b3d867617a6f6ffab8d33cbfa51ba8b2dc86304bed22472696c44.exe	93
PID 2120 wrote to memory of 1096	2120	afbe9d9ccd4b3d867617a6f6ffab8d33cbfa51ba8b2dc86304bed22472696c44.exe	93
PID 2120 wrote to memory of 228	2120	afbe9d9ccd4b3d867617a6f6ffab8d33cbfa51ba8b2dc86304bed22472696c44.exe	94
PID 2120 wrote to memory of 228	2120	afbe9d9ccd4b3d867617a6f6ffab8d33cbfa51ba8b2dc86304bed22472696c44.exe	94
PID 2120 wrote to memory of 228	2120	afbe9d9ccd4b3d867617a6f6ffab8d33cbfa51ba8b2dc86304bed22472696c44.exe	94

C:\Users\Admin\AppData\Local\Temp\afbe9d9ccd4b3d867617a6f6ffab8d33cbfa51ba8b2dc86304bed22472696c44.exe
"C:\Users\Admin\AppData\Local\Temp\afbe9d9ccd4b3d867617a6f6ffab8d33cbfa51ba8b2dc86304bed22472696c44.exe"
1⤵
- Loads dropped DLL
- Drops file in Program Files directory
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2120
- C:\Windows\SysWOW64\arp.exe
  arp -a
  2⤵
  - Network Service Discovery
  - System Location Discovery: System Language Discovery
  PID:3532
- C:\Windows\SysWOW64\arp.exe
  arp -s 10.127.0.1 4a-e5-92-f3-fd-df
  2⤵
  - Network Service Discovery
  - System Location Discovery: System Language Discovery
  PID:3000
- C:\Windows\SysWOW64\arp.exe
  arp -s 10.127.255.255 ef-a4-e0-97-9f-32
  2⤵
  - Network Service Discovery
  - System Location Discovery: System Language Discovery
  PID:2428
- C:\Windows\SysWOW64\arp.exe
  arp -s 37.27.61.182 5b-f4-b8-7b-08-fa
  2⤵
  - Network Service Discovery
  - System Location Discovery: System Language Discovery
  PID:3004
- C:\Windows\SysWOW64\arp.exe
  arp -s 224.0.0.22 6e-31-df-49-e9-02
  2⤵
  - Network Service Discovery
  - System Location Discovery: System Language Discovery
  PID:3628
- C:\Windows\SysWOW64\arp.exe
  arp -s 224.0.0.251 6c-c7-b0-7e-72-c9
  2⤵
  - Network Service Discovery
  - System Location Discovery: System Language Discovery
  PID:4948
- C:\Windows\SysWOW64\arp.exe
  arp -s 224.0.0.252 66-8b-80-cc-5c-f5
  2⤵
  - Network Service Discovery
  - System Location Discovery: System Language Discovery
  PID:2336
- C:\Windows\SysWOW64\arp.exe
  arp -s 239.255.255.250 b0-1b-4d-b0-e3-8d
  2⤵
  - Network Service Discovery
  - System Location Discovery: System Language Discovery
  PID:1096
- C:\Windows\SysWOW64\arp.exe
  arp -s 255.255.255.255 c1-0a-8c-5a-a0-23
  2⤵
  - Network Service Discovery
  - System Location Discovery: System Language Discovery
  PID:228

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 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
71KB

MD5
4fcd7574537cebec8e75b4e646996643

SHA1
efa59bb9050fb656b90d5d40c942fb2a304f2a8b

SHA256
8ea3b17e4b783ffc0bc387b81b823bf87af0d57da74541d88ba85314bb232a5d

SHA512
7f1a7ef64d332a735db82506b47d84853af870785066d29ccaf4fdeab114079a9f0db400e01ba574776a0d652a248658fe1e8f9659cdced19ad6eea09644ea3e

Download Submit
memory/2120-4-0x0000000010000000-0x0000000010033000-memory.dmp

Filesize
204KB

Download
memory/2120-11-0x0000000010000000-0x0000000010033000-memory.dmp

Filesize
204KB

Download