floxif | fd6f36a65be9506c7499a3408bf210ad9252c13d96d611c478b6e085c812193b

Analysis

max time kernel
122s
max time network
123s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
08-01-2025 01:48

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General

Target

2025-01-08_66066ba92c181ab7f615b614af866294_floxif_mafia.exe
Size

272KB
MD5

66066ba92c181ab7f615b614af866294
SHA1

2b931b34e1dc858f0523544833e9f1873f87e1f2
SHA256

fd6f36a65be9506c7499a3408bf210ad9252c13d96d611c478b6e085c812193b
SHA512

be1df7fbea2bc09f0fa6bcbfc796d7d7dc04701847c997e23b27da310dc7c417cbb597c1668fdcbe367162b8235df57cf7912e13fc88f6858b601ae3891e1f33
SSDEEP

6144:2MMZlyIxgMgDXfMRET+l2AbpLk0cusQvMRlkM4RD/qzMfUT:zMZl0foKG2qk0nMRGM4h/qofi

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/0x0009000000012117-1.dat	floxif

ACProtect 1.3x - 1.4x DLL software 1 IoCs

Detects file using ACProtect software.

resource	yara_rule
behavioral1/files/0x0009000000012117-1.dat	acprotect

Loads dropped DLL 1 IoCs

pid	Process
1864	2025-01-08_66066ba92c181ab7f615b614af866294_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
2400	arp.exe
2100	arp.exe
2052	arp.exe
2468	arp.exe
2996	arp.exe
2976	arp.exe
2848	arp.exe
2168	arp.exe
2688	arp.exe

UPX packed file 3 IoCs

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

upx

resource	yara_rule
behavioral1/files/0x0009000000012117-1.dat	upx
behavioral1/memory/1864-3-0x0000000010000000-0x0000000010033000-memory.dmp	upx
behavioral1/memory/1864-7-0x0000000010000000-0x0000000010033000-memory.dmp	upx

Drops file in Program Files directory 1 IoCs

description	ioc	Process
File created	C:\Program Files\Common Files\System\symsrv.dll	2025-01-08_66066ba92c181ab7f615b614af866294_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	2025-01-08_66066ba92c181ab7f615b614af866294_floxif_mafia.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

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1864	2025-01-08_66066ba92c181ab7f615b614af866294_floxif_mafia.exe

Suspicious use of WriteProcessMemory 36 IoCs

description	pid	Process	procid_target
PID 1864 wrote to memory of 2976	1864	2025-01-08_66066ba92c181ab7f615b614af866294_floxif_mafia.exe	30
PID 1864 wrote to memory of 2976	1864	2025-01-08_66066ba92c181ab7f615b614af866294_floxif_mafia.exe	30
PID 1864 wrote to memory of 2976	1864	2025-01-08_66066ba92c181ab7f615b614af866294_floxif_mafia.exe	30
PID 1864 wrote to memory of 2976	1864	2025-01-08_66066ba92c181ab7f615b614af866294_floxif_mafia.exe	30
PID 1864 wrote to memory of 2848	1864	2025-01-08_66066ba92c181ab7f615b614af866294_floxif_mafia.exe	32
PID 1864 wrote to memory of 2848	1864	2025-01-08_66066ba92c181ab7f615b614af866294_floxif_mafia.exe	32
PID 1864 wrote to memory of 2848	1864	2025-01-08_66066ba92c181ab7f615b614af866294_floxif_mafia.exe	32
PID 1864 wrote to memory of 2848	1864	2025-01-08_66066ba92c181ab7f615b614af866294_floxif_mafia.exe	32
PID 1864 wrote to memory of 2400	1864	2025-01-08_66066ba92c181ab7f615b614af866294_floxif_mafia.exe	33
PID 1864 wrote to memory of 2400	1864	2025-01-08_66066ba92c181ab7f615b614af866294_floxif_mafia.exe	33
PID 1864 wrote to memory of 2400	1864	2025-01-08_66066ba92c181ab7f615b614af866294_floxif_mafia.exe	33
PID 1864 wrote to memory of 2400	1864	2025-01-08_66066ba92c181ab7f615b614af866294_floxif_mafia.exe	33
PID 1864 wrote to memory of 2100	1864	2025-01-08_66066ba92c181ab7f615b614af866294_floxif_mafia.exe	35
PID 1864 wrote to memory of 2100	1864	2025-01-08_66066ba92c181ab7f615b614af866294_floxif_mafia.exe	35
PID 1864 wrote to memory of 2100	1864	2025-01-08_66066ba92c181ab7f615b614af866294_floxif_mafia.exe	35
PID 1864 wrote to memory of 2100	1864	2025-01-08_66066ba92c181ab7f615b614af866294_floxif_mafia.exe	35
PID 1864 wrote to memory of 2052	1864	2025-01-08_66066ba92c181ab7f615b614af866294_floxif_mafia.exe	37
PID 1864 wrote to memory of 2052	1864	2025-01-08_66066ba92c181ab7f615b614af866294_floxif_mafia.exe	37
PID 1864 wrote to memory of 2052	1864	2025-01-08_66066ba92c181ab7f615b614af866294_floxif_mafia.exe	37
PID 1864 wrote to memory of 2052	1864	2025-01-08_66066ba92c181ab7f615b614af866294_floxif_mafia.exe	37
PID 1864 wrote to memory of 2168	1864	2025-01-08_66066ba92c181ab7f615b614af866294_floxif_mafia.exe	39
PID 1864 wrote to memory of 2168	1864	2025-01-08_66066ba92c181ab7f615b614af866294_floxif_mafia.exe	39
PID 1864 wrote to memory of 2168	1864	2025-01-08_66066ba92c181ab7f615b614af866294_floxif_mafia.exe	39
PID 1864 wrote to memory of 2168	1864	2025-01-08_66066ba92c181ab7f615b614af866294_floxif_mafia.exe	39
PID 1864 wrote to memory of 2688	1864	2025-01-08_66066ba92c181ab7f615b614af866294_floxif_mafia.exe	41
PID 1864 wrote to memory of 2688	1864	2025-01-08_66066ba92c181ab7f615b614af866294_floxif_mafia.exe	41
PID 1864 wrote to memory of 2688	1864	2025-01-08_66066ba92c181ab7f615b614af866294_floxif_mafia.exe	41
PID 1864 wrote to memory of 2688	1864	2025-01-08_66066ba92c181ab7f615b614af866294_floxif_mafia.exe	41
PID 1864 wrote to memory of 2468	1864	2025-01-08_66066ba92c181ab7f615b614af866294_floxif_mafia.exe	43
PID 1864 wrote to memory of 2468	1864	2025-01-08_66066ba92c181ab7f615b614af866294_floxif_mafia.exe	43
PID 1864 wrote to memory of 2468	1864	2025-01-08_66066ba92c181ab7f615b614af866294_floxif_mafia.exe	43
PID 1864 wrote to memory of 2468	1864	2025-01-08_66066ba92c181ab7f615b614af866294_floxif_mafia.exe	43
PID 1864 wrote to memory of 2996	1864	2025-01-08_66066ba92c181ab7f615b614af866294_floxif_mafia.exe	45
PID 1864 wrote to memory of 2996	1864	2025-01-08_66066ba92c181ab7f615b614af866294_floxif_mafia.exe	45
PID 1864 wrote to memory of 2996	1864	2025-01-08_66066ba92c181ab7f615b614af866294_floxif_mafia.exe	45
PID 1864 wrote to memory of 2996	1864	2025-01-08_66066ba92c181ab7f615b614af866294_floxif_mafia.exe	45

C:\Users\Admin\AppData\Local\Temp\2025-01-08_66066ba92c181ab7f615b614af866294_floxif_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-01-08_66066ba92c181ab7f615b614af866294_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:1864
- C:\Windows\SysWOW64\arp.exe
  arp -a
  2⤵
  - Network Service Discovery
  - System Location Discovery: System Language Discovery
  PID:2976
- C:\Windows\SysWOW64\arp.exe
  arp -s 10.127.0.1 af-9b-42-e5-44-66
  2⤵
  - Network Service Discovery
  - System Location Discovery: System Language Discovery
  PID:2848
- C:\Windows\SysWOW64\arp.exe
  arp -s 10.127.255.255 0f-e9-c7-e4-6c-c9
  2⤵
  - Network Service Discovery
  - System Location Discovery: System Language Discovery
  PID:2400
- C:\Windows\SysWOW64\arp.exe
  arp -s 37.27.61.183 3b-5d-39-b2-99-2c
  2⤵
  - Network Service Discovery
  - System Location Discovery: System Language Discovery
  PID:2100
- C:\Windows\SysWOW64\arp.exe
  arp -s 224.0.0.22 f5-b9-55-2e-5c-6e
  2⤵
  - Network Service Discovery
  - System Location Discovery: System Language Discovery
  PID:2052
- C:\Windows\SysWOW64\arp.exe
  arp -s 224.0.0.251 2e-5d-6c-34-e0-3d
  2⤵
  - Network Service Discovery
  - System Location Discovery: System Language Discovery
  PID:2168
- C:\Windows\SysWOW64\arp.exe
  arp -s 224.0.0.252 53-5e-2b-31-3b-7d
  2⤵
  - Network Service Discovery
  - System Location Discovery: System Language Discovery
  PID:2688
- C:\Windows\SysWOW64\arp.exe
  arp -s 239.255.255.250 43-ad-bb-44-e2-fa
  2⤵
  - Network Service Discovery
  - System Location Discovery: System Language Discovery
  PID:2468
- C:\Windows\SysWOW64\arp.exe
  arp -s 255.255.255.255 b8-79-23-49-7b-f3
  2⤵
  - Network Service Discovery
  - System Location Discovery: System Language Discovery
  PID:2996

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/1864-3-0x0000000010000000-0x0000000010033000-memory.dmp

Filesize
204KB

Download
memory/1864-5-0x00000000011B0000-0x00000000011E2000-memory.dmp

Filesize
200KB

Download
memory/1864-7-0x0000000010000000-0x0000000010033000-memory.dmp

Filesize
204KB

Download