floxif | c6186737d7849041a58b5cc6fa914ebbb00eebf65a0773de8b86b58965ee7451

Analysis

max time kernel
119s
max time network
120s
platform
windows7_x64
resource
win7-20240729-en
resource tags

arch:x64arch:x86image:win7-20240729-enlocale:en-usos:windows7-x64system
submitted
09-01-2025 00:47

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General

Target

2025-01-09_90b7ea5269a93d7ba6064f485705ba9c_floxif_mafia.exe
Size

272KB
MD5

90b7ea5269a93d7ba6064f485705ba9c
SHA1

a6570d4bfd1dc1aec02636f4566f2aca0052498d
SHA256

c6186737d7849041a58b5cc6fa914ebbb00eebf65a0773de8b86b58965ee7451
SHA512

3beb5526be0c9af4523e7405933cd00b58bf50ab22530786fc0b9ce48705f38b69490bd36d56227537636aab7082643bb4b614bcbd788ec354a1305ee922fbad
SSDEEP

6144:2MMZlyIxgWMuGkTEUET+l2AbpLk0cusQvMRlkM4RD/qzMfUFzV:zMZlZgkT1KG2qk0nMRGM4h/qofsJ

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
behavioral1/files/0x00070000000120fb-1.dat	floxif

ACProtect 1.3x - 1.4x DLL software 1 IoCs

Detects file using ACProtect software.

resource	yara_rule
behavioral1/files/0x00070000000120fb-1.dat	acprotect

Loads dropped DLL 1 IoCs

pid	Process
2704	2025-01-09_90b7ea5269a93d7ba6064f485705ba9c_floxif_mafia.exe

Network Service Discovery 1 TTPs 9 IoCs

Attempt to gather information on host's network.

discovery

Network Service Discovery

T1046

pid	Process
2836	arp.exe
2832	arp.exe
2736	arp.exe
2752	arp.exe
2892	arp.exe
2944	arp.exe
2400	arp.exe
2800	arp.exe
2692	arp.exe

UPX packed file 3 IoCs

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

upx

resource	yara_rule
behavioral1/files/0x00070000000120fb-1.dat	upx
behavioral1/memory/2704-3-0x0000000010000000-0x0000000010033000-memory.dmp	upx
behavioral1/memory/2704-8-0x0000000010000000-0x0000000010033000-memory.dmp	upx

Drops file in Program Files directory 1 IoCs

description	ioc	Process
File created	C:\Program Files\Common Files\System\symsrv.dll	2025-01-09_90b7ea5269a93d7ba6064f485705ba9c_floxif_mafia.exe

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	2025-01-09_90b7ea5269a93d7ba6064f485705ba9c_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	2704	2025-01-09_90b7ea5269a93d7ba6064f485705ba9c_floxif_mafia.exe

Suspicious use of WriteProcessMemory 36 IoCs

description	pid	Process	procid_target
PID 2704 wrote to memory of 2944	2704	2025-01-09_90b7ea5269a93d7ba6064f485705ba9c_floxif_mafia.exe	30
PID 2704 wrote to memory of 2944	2704	2025-01-09_90b7ea5269a93d7ba6064f485705ba9c_floxif_mafia.exe	30
PID 2704 wrote to memory of 2944	2704	2025-01-09_90b7ea5269a93d7ba6064f485705ba9c_floxif_mafia.exe	30
PID 2704 wrote to memory of 2944	2704	2025-01-09_90b7ea5269a93d7ba6064f485705ba9c_floxif_mafia.exe	30
PID 2704 wrote to memory of 2836	2704	2025-01-09_90b7ea5269a93d7ba6064f485705ba9c_floxif_mafia.exe	32
PID 2704 wrote to memory of 2836	2704	2025-01-09_90b7ea5269a93d7ba6064f485705ba9c_floxif_mafia.exe	32
PID 2704 wrote to memory of 2836	2704	2025-01-09_90b7ea5269a93d7ba6064f485705ba9c_floxif_mafia.exe	32
PID 2704 wrote to memory of 2836	2704	2025-01-09_90b7ea5269a93d7ba6064f485705ba9c_floxif_mafia.exe	32
PID 2704 wrote to memory of 2400	2704	2025-01-09_90b7ea5269a93d7ba6064f485705ba9c_floxif_mafia.exe	33
PID 2704 wrote to memory of 2400	2704	2025-01-09_90b7ea5269a93d7ba6064f485705ba9c_floxif_mafia.exe	33
PID 2704 wrote to memory of 2400	2704	2025-01-09_90b7ea5269a93d7ba6064f485705ba9c_floxif_mafia.exe	33
PID 2704 wrote to memory of 2400	2704	2025-01-09_90b7ea5269a93d7ba6064f485705ba9c_floxif_mafia.exe	33
PID 2704 wrote to memory of 2800	2704	2025-01-09_90b7ea5269a93d7ba6064f485705ba9c_floxif_mafia.exe	34
PID 2704 wrote to memory of 2800	2704	2025-01-09_90b7ea5269a93d7ba6064f485705ba9c_floxif_mafia.exe	34
PID 2704 wrote to memory of 2800	2704	2025-01-09_90b7ea5269a93d7ba6064f485705ba9c_floxif_mafia.exe	34
PID 2704 wrote to memory of 2800	2704	2025-01-09_90b7ea5269a93d7ba6064f485705ba9c_floxif_mafia.exe	34
PID 2704 wrote to memory of 2832	2704	2025-01-09_90b7ea5269a93d7ba6064f485705ba9c_floxif_mafia.exe	35
PID 2704 wrote to memory of 2832	2704	2025-01-09_90b7ea5269a93d7ba6064f485705ba9c_floxif_mafia.exe	35
PID 2704 wrote to memory of 2832	2704	2025-01-09_90b7ea5269a93d7ba6064f485705ba9c_floxif_mafia.exe	35
PID 2704 wrote to memory of 2832	2704	2025-01-09_90b7ea5269a93d7ba6064f485705ba9c_floxif_mafia.exe	35
PID 2704 wrote to memory of 2692	2704	2025-01-09_90b7ea5269a93d7ba6064f485705ba9c_floxif_mafia.exe	36
PID 2704 wrote to memory of 2692	2704	2025-01-09_90b7ea5269a93d7ba6064f485705ba9c_floxif_mafia.exe	36
PID 2704 wrote to memory of 2692	2704	2025-01-09_90b7ea5269a93d7ba6064f485705ba9c_floxif_mafia.exe	36
PID 2704 wrote to memory of 2692	2704	2025-01-09_90b7ea5269a93d7ba6064f485705ba9c_floxif_mafia.exe	36
PID 2704 wrote to memory of 2736	2704	2025-01-09_90b7ea5269a93d7ba6064f485705ba9c_floxif_mafia.exe	37
PID 2704 wrote to memory of 2736	2704	2025-01-09_90b7ea5269a93d7ba6064f485705ba9c_floxif_mafia.exe	37
PID 2704 wrote to memory of 2736	2704	2025-01-09_90b7ea5269a93d7ba6064f485705ba9c_floxif_mafia.exe	37
PID 2704 wrote to memory of 2736	2704	2025-01-09_90b7ea5269a93d7ba6064f485705ba9c_floxif_mafia.exe	37
PID 2704 wrote to memory of 2752	2704	2025-01-09_90b7ea5269a93d7ba6064f485705ba9c_floxif_mafia.exe	38
PID 2704 wrote to memory of 2752	2704	2025-01-09_90b7ea5269a93d7ba6064f485705ba9c_floxif_mafia.exe	38
PID 2704 wrote to memory of 2752	2704	2025-01-09_90b7ea5269a93d7ba6064f485705ba9c_floxif_mafia.exe	38
PID 2704 wrote to memory of 2752	2704	2025-01-09_90b7ea5269a93d7ba6064f485705ba9c_floxif_mafia.exe	38
PID 2704 wrote to memory of 2892	2704	2025-01-09_90b7ea5269a93d7ba6064f485705ba9c_floxif_mafia.exe	39
PID 2704 wrote to memory of 2892	2704	2025-01-09_90b7ea5269a93d7ba6064f485705ba9c_floxif_mafia.exe	39
PID 2704 wrote to memory of 2892	2704	2025-01-09_90b7ea5269a93d7ba6064f485705ba9c_floxif_mafia.exe	39
PID 2704 wrote to memory of 2892	2704	2025-01-09_90b7ea5269a93d7ba6064f485705ba9c_floxif_mafia.exe	39

C:\Users\Admin\AppData\Local\Temp\2025-01-09_90b7ea5269a93d7ba6064f485705ba9c_floxif_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-01-09_90b7ea5269a93d7ba6064f485705ba9c_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:2704
- C:\Windows\SysWOW64\arp.exe
  arp -a
  2⤵
  - Network Service Discovery
  - System Location Discovery: System Language Discovery
  PID:2944
- C:\Windows\SysWOW64\arp.exe
  arp -s 10.127.0.1 a2-d0-44-02-55-7c
  2⤵
  - Network Service Discovery
  - System Location Discovery: System Language Discovery
  PID:2836
- C:\Windows\SysWOW64\arp.exe
  arp -s 10.127.255.255 39-6e-8d-ad-f3-7c
  2⤵
  - Network Service Discovery
  - System Location Discovery: System Language Discovery
  PID:2400
- C:\Windows\SysWOW64\arp.exe
  arp -s 136.243.76.21 46-6b-a7-19-dd-c1
  2⤵
  - Network Service Discovery
  - System Location Discovery: System Language Discovery
  PID:2800
- C:\Windows\SysWOW64\arp.exe
  arp -s 224.0.0.22 2f-47-30-cc-37-ef
  2⤵
  - Network Service Discovery
  - System Location Discovery: System Language Discovery
  PID:2832
- C:\Windows\SysWOW64\arp.exe
  arp -s 224.0.0.251 fd-50-48-54-ba-21
  2⤵
  - Network Service Discovery
  - System Location Discovery: System Language Discovery
  PID:2692
- C:\Windows\SysWOW64\arp.exe
  arp -s 224.0.0.252 8d-15-95-c0-10-58
  2⤵
  - Network Service Discovery
  - System Location Discovery: System Language Discovery
  PID:2736
- C:\Windows\SysWOW64\arp.exe
  arp -s 239.255.255.250 7b-3e-23-84-5e-6e
  2⤵
  - Network Service Discovery
  - System Location Discovery: System Language Discovery
  PID:2752
- C:\Windows\SysWOW64\arp.exe
  arp -s 255.255.255.255 15-68-9d-8f-b7-ca
  2⤵
  - Network Service Discovery
  - System Location Discovery: System Language Discovery
  PID:2892

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

\Program Files\Common Files\System\symsrv.dll

Filesize
71KB

MD5
4fcd7574537cebec8e75b4e646996643

SHA1
efa59bb9050fb656b90d5d40c942fb2a304f2a8b

SHA256
8ea3b17e4b783ffc0bc387b81b823bf87af0d57da74541d88ba85314bb232a5d

SHA512
7f1a7ef64d332a735db82506b47d84853af870785066d29ccaf4fdeab114079a9f0db400e01ba574776a0d652a248658fe1e8f9659cdced19ad6eea09644ea3e

Download Submit
memory/2704-3-0x0000000010000000-0x0000000010033000-memory.dmp

Filesize
204KB

Download
memory/2704-5-0x00000000013A1000-0x00000000013A2000-memory.dmp

Filesize
4KB

Download
memory/2704-8-0x0000000010000000-0x0000000010033000-memory.dmp

Filesize
204KB

Download
memory/2704-6-0x00000000013A0000-0x00000000013D2000-memory.dmp

Filesize
200KB

Download