floxif | d329f158d1c0ffc8d78937a551bb983ba780a2a4fd44ba01011f27a709673a9d

Analysis

max time kernel
121s
max time network
122s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
18-12-2024 15:05

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General

Target

d329f158d1c0ffc8d78937a551bb983ba780a2a4fd44ba01011f27a709673a9d.exe
Size

281KB
MD5

758bc6bd97a61236bc9d4b71afa08754
SHA1

d23cf92b847daa61b003ff92536993169f9b1e28
SHA256

d329f158d1c0ffc8d78937a551bb983ba780a2a4fd44ba01011f27a709673a9d
SHA512

47328de9ca70ded18ed3cc09448626e326105ee9f5ef6075650cc8a3dbdd8ea504aec5a01e24661337a0a4adfcaa1bfb4733c62ca0e94c78ab634da0aca5cf91
SSDEEP

6144:TvAl/DRfkTC3dM7B+GCyusQvMRlkM4RD/qzMfUs/:TolbRfky6B+GCyUMRGM4h/qofv

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/0x000c000000012254-1.dat	floxif

ACProtect 1.3x - 1.4x DLL software 1 IoCs

Detects file using ACProtect software.

resource	yara_rule
behavioral1/files/0x000c000000012254-1.dat	acprotect

Loads dropped DLL 1 IoCs

pid	Process
1984	d329f158d1c0ffc8d78937a551bb983ba780a2a4fd44ba01011f27a709673a9d.exe

Network Service Discovery 1 TTPs 9 IoCs

Attempt to gather information on host's network.

discovery

Network Service Discovery

T1046

pid	Process
2200	arp.exe
2328	arp.exe
2012	arp.exe
2696	arp.exe
2816	arp.exe
2500	arp.exe
3044	arp.exe
2384	arp.exe
3064	arp.exe

UPX packed file 3 IoCs

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

upx

resource	yara_rule
behavioral1/files/0x000c000000012254-1.dat	upx
behavioral1/memory/1984-3-0x0000000010000000-0x0000000010033000-memory.dmp	upx
behavioral1/memory/1984-7-0x0000000010000000-0x0000000010033000-memory.dmp	upx

Drops file in Program Files directory 1 IoCs

description	ioc	Process
File created	C:\Program Files\Common Files\System\symsrv.dll	d329f158d1c0ffc8d78937a551bb983ba780a2a4fd44ba01011f27a709673a9d.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	d329f158d1c0ffc8d78937a551bb983ba780a2a4fd44ba01011f27a709673a9d.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	1984	d329f158d1c0ffc8d78937a551bb983ba780a2a4fd44ba01011f27a709673a9d.exe

Suspicious use of WriteProcessMemory 36 IoCs

description	pid	Process	procid_target
PID 1984 wrote to memory of 3044	1984	d329f158d1c0ffc8d78937a551bb983ba780a2a4fd44ba01011f27a709673a9d.exe	30
PID 1984 wrote to memory of 3044	1984	d329f158d1c0ffc8d78937a551bb983ba780a2a4fd44ba01011f27a709673a9d.exe	30
PID 1984 wrote to memory of 3044	1984	d329f158d1c0ffc8d78937a551bb983ba780a2a4fd44ba01011f27a709673a9d.exe	30
PID 1984 wrote to memory of 3044	1984	d329f158d1c0ffc8d78937a551bb983ba780a2a4fd44ba01011f27a709673a9d.exe	30
PID 1984 wrote to memory of 2328	1984	d329f158d1c0ffc8d78937a551bb983ba780a2a4fd44ba01011f27a709673a9d.exe	32
PID 1984 wrote to memory of 2328	1984	d329f158d1c0ffc8d78937a551bb983ba780a2a4fd44ba01011f27a709673a9d.exe	32
PID 1984 wrote to memory of 2328	1984	d329f158d1c0ffc8d78937a551bb983ba780a2a4fd44ba01011f27a709673a9d.exe	32
PID 1984 wrote to memory of 2328	1984	d329f158d1c0ffc8d78937a551bb983ba780a2a4fd44ba01011f27a709673a9d.exe	32
PID 1984 wrote to memory of 2012	1984	d329f158d1c0ffc8d78937a551bb983ba780a2a4fd44ba01011f27a709673a9d.exe	33
PID 1984 wrote to memory of 2012	1984	d329f158d1c0ffc8d78937a551bb983ba780a2a4fd44ba01011f27a709673a9d.exe	33
PID 1984 wrote to memory of 2012	1984	d329f158d1c0ffc8d78937a551bb983ba780a2a4fd44ba01011f27a709673a9d.exe	33
PID 1984 wrote to memory of 2012	1984	d329f158d1c0ffc8d78937a551bb983ba780a2a4fd44ba01011f27a709673a9d.exe	33
PID 1984 wrote to memory of 2384	1984	d329f158d1c0ffc8d78937a551bb983ba780a2a4fd44ba01011f27a709673a9d.exe	35
PID 1984 wrote to memory of 2384	1984	d329f158d1c0ffc8d78937a551bb983ba780a2a4fd44ba01011f27a709673a9d.exe	35
PID 1984 wrote to memory of 2384	1984	d329f158d1c0ffc8d78937a551bb983ba780a2a4fd44ba01011f27a709673a9d.exe	35
PID 1984 wrote to memory of 2384	1984	d329f158d1c0ffc8d78937a551bb983ba780a2a4fd44ba01011f27a709673a9d.exe	35
PID 1984 wrote to memory of 2696	1984	d329f158d1c0ffc8d78937a551bb983ba780a2a4fd44ba01011f27a709673a9d.exe	37
PID 1984 wrote to memory of 2696	1984	d329f158d1c0ffc8d78937a551bb983ba780a2a4fd44ba01011f27a709673a9d.exe	37
PID 1984 wrote to memory of 2696	1984	d329f158d1c0ffc8d78937a551bb983ba780a2a4fd44ba01011f27a709673a9d.exe	37
PID 1984 wrote to memory of 2696	1984	d329f158d1c0ffc8d78937a551bb983ba780a2a4fd44ba01011f27a709673a9d.exe	37
PID 1984 wrote to memory of 3064	1984	d329f158d1c0ffc8d78937a551bb983ba780a2a4fd44ba01011f27a709673a9d.exe	39
PID 1984 wrote to memory of 3064	1984	d329f158d1c0ffc8d78937a551bb983ba780a2a4fd44ba01011f27a709673a9d.exe	39
PID 1984 wrote to memory of 3064	1984	d329f158d1c0ffc8d78937a551bb983ba780a2a4fd44ba01011f27a709673a9d.exe	39
PID 1984 wrote to memory of 3064	1984	d329f158d1c0ffc8d78937a551bb983ba780a2a4fd44ba01011f27a709673a9d.exe	39
PID 1984 wrote to memory of 2200	1984	d329f158d1c0ffc8d78937a551bb983ba780a2a4fd44ba01011f27a709673a9d.exe	41
PID 1984 wrote to memory of 2200	1984	d329f158d1c0ffc8d78937a551bb983ba780a2a4fd44ba01011f27a709673a9d.exe	41
PID 1984 wrote to memory of 2200	1984	d329f158d1c0ffc8d78937a551bb983ba780a2a4fd44ba01011f27a709673a9d.exe	41
PID 1984 wrote to memory of 2200	1984	d329f158d1c0ffc8d78937a551bb983ba780a2a4fd44ba01011f27a709673a9d.exe	41
PID 1984 wrote to memory of 2500	1984	d329f158d1c0ffc8d78937a551bb983ba780a2a4fd44ba01011f27a709673a9d.exe	43
PID 1984 wrote to memory of 2500	1984	d329f158d1c0ffc8d78937a551bb983ba780a2a4fd44ba01011f27a709673a9d.exe	43
PID 1984 wrote to memory of 2500	1984	d329f158d1c0ffc8d78937a551bb983ba780a2a4fd44ba01011f27a709673a9d.exe	43
PID 1984 wrote to memory of 2500	1984	d329f158d1c0ffc8d78937a551bb983ba780a2a4fd44ba01011f27a709673a9d.exe	43
PID 1984 wrote to memory of 2816	1984	d329f158d1c0ffc8d78937a551bb983ba780a2a4fd44ba01011f27a709673a9d.exe	45
PID 1984 wrote to memory of 2816	1984	d329f158d1c0ffc8d78937a551bb983ba780a2a4fd44ba01011f27a709673a9d.exe	45
PID 1984 wrote to memory of 2816	1984	d329f158d1c0ffc8d78937a551bb983ba780a2a4fd44ba01011f27a709673a9d.exe	45
PID 1984 wrote to memory of 2816	1984	d329f158d1c0ffc8d78937a551bb983ba780a2a4fd44ba01011f27a709673a9d.exe	45

C:\Users\Admin\AppData\Local\Temp\d329f158d1c0ffc8d78937a551bb983ba780a2a4fd44ba01011f27a709673a9d.exe
"C:\Users\Admin\AppData\Local\Temp\d329f158d1c0ffc8d78937a551bb983ba780a2a4fd44ba01011f27a709673a9d.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:1984
- C:\Windows\SysWOW64\arp.exe
  arp -a
  2⤵
  - Network Service Discovery
  - System Location Discovery: System Language Discovery
  PID:3044
- C:\Windows\SysWOW64\arp.exe
  arp -s 10.127.0.1 5e-77-99-9e-bc-f0
  2⤵
  - Network Service Discovery
  - System Location Discovery: System Language Discovery
  PID:2328
- C:\Windows\SysWOW64\arp.exe
  arp -s 10.127.255.255 8b-0d-d7-35-be-5a
  2⤵
  - Network Service Discovery
  - System Location Discovery: System Language Discovery
  PID:2012
- C:\Windows\SysWOW64\arp.exe
  arp -s 37.27.61.180 d4-46-c2-ba-d7-62
  2⤵
  - Network Service Discovery
  - System Location Discovery: System Language Discovery
  PID:2384
- C:\Windows\SysWOW64\arp.exe
  arp -s 224.0.0.22 dd-9d-f5-ee-39-09
  2⤵
  - Network Service Discovery
  - System Location Discovery: System Language Discovery
  PID:2696
- C:\Windows\SysWOW64\arp.exe
  arp -s 224.0.0.251 ae-9d-f7-a2-2f-23
  2⤵
  - Network Service Discovery
  - System Location Discovery: System Language Discovery
  PID:3064
- C:\Windows\SysWOW64\arp.exe
  arp -s 224.0.0.252 cd-a9-76-73-ae-a5
  2⤵
  - Network Service Discovery
  - System Location Discovery: System Language Discovery
  PID:2200
- C:\Windows\SysWOW64\arp.exe
  arp -s 239.255.255.250 cc-ff-c7-77-4a-d6
  2⤵
  - Network Service Discovery
  - System Location Discovery: System Language Discovery
  PID:2500
- C:\Windows\SysWOW64\arp.exe
  arp -s 255.255.255.255 2e-3a-e7-66-f9-35
  2⤵
  - Network Service Discovery
  - System Location Discovery: System Language Discovery
  PID:2816

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

Replay Monitor

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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/1984-3-0x0000000010000000-0x0000000010033000-memory.dmp

Filesize
204KB

Download
memory/1984-5-0x0000000001230000-0x0000000001265000-memory.dmp

Filesize
212KB

Download
memory/1984-7-0x0000000010000000-0x0000000010033000-memory.dmp

Filesize
204KB

Download