floxif | d7e76831c602bf996420aa8693e4e23cfdb3e0ff8a6ce621ce8b68060943497b

Analysis

max time kernel
94s
max time network
143s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
26-12-2024 00:31

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General

Target

2024-12-26_c388195a72f2581ef88bafc032a0083b_floxif_mafia.exe
Size

272KB
MD5

c388195a72f2581ef88bafc032a0083b
SHA1

ff11e0f500244933acf7f227213bfe069752b35e
SHA256

d7e76831c602bf996420aa8693e4e23cfdb3e0ff8a6ce621ce8b68060943497b
SHA512

1d34a12b8315f369e246a756277d0f203ca775c5a0bff5b7d8230a74cb99bdaa8123f52bb05f9a3e8b2d54ea07ae13a672008812be04249c5a93b36e1cd20f72
SSDEEP

6144:2MMZlHa3xgMgDwkTEUET+l2AbpLk0cusQvMRlkM4RD/qzMfUb3ac:zMZlHIkT1KG2qk0nMRGM4h/qofg3ac

Score

10^/10

floxif backdoor discovery persistence privilege_escalation 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/0x000c000000023ba0-1.dat	floxif

Event Triggered Execution: AppInit DLLs 1 TTPs
Adversaries may establish persistence and/or elevate privileges by executing malicious content triggered by AppInit DLLs loaded into processes.
persistence privilege_escalation

AppInit DLLs
T1546.010

ACProtect 1.3x - 1.4x DLL software 1 IoCs

Detects file using ACProtect software.

resource	yara_rule
behavioral2/files/0x000c000000023ba0-1.dat	acprotect

Loads dropped DLL 1 IoCs

pid	Process
1904	2024-12-26_c388195a72f2581ef88bafc032a0083b_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
3780	arp.exe
4984	arp.exe
4452	arp.exe
2684	arp.exe
4532	arp.exe
2376	arp.exe
548	arp.exe
2104	arp.exe
2756	arp.exe

UPX packed file 3 IoCs

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

upx

resource	yara_rule
behavioral2/files/0x000c000000023ba0-1.dat	upx
behavioral2/memory/1904-4-0x0000000010000000-0x0000000010033000-memory.dmp	upx
behavioral2/memory/1904-9-0x0000000010000000-0x0000000010033000-memory.dmp	upx

Drops file in Program Files directory 1 IoCs

description	ioc	Process
File created	C:\Program Files\Common Files\System\symsrv.dll	2024-12-26_c388195a72f2581ef88bafc032a0083b_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	2024-12-26_c388195a72f2581ef88bafc032a0083b_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

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1904	2024-12-26_c388195a72f2581ef88bafc032a0083b_floxif_mafia.exe

Suspicious use of WriteProcessMemory 27 IoCs

description	pid	Process	procid_target
PID 1904 wrote to memory of 548	1904	2024-12-26_c388195a72f2581ef88bafc032a0083b_floxif_mafia.exe	83
PID 1904 wrote to memory of 548	1904	2024-12-26_c388195a72f2581ef88bafc032a0083b_floxif_mafia.exe	83
PID 1904 wrote to memory of 548	1904	2024-12-26_c388195a72f2581ef88bafc032a0083b_floxif_mafia.exe	83
PID 1904 wrote to memory of 2104	1904	2024-12-26_c388195a72f2581ef88bafc032a0083b_floxif_mafia.exe	85
PID 1904 wrote to memory of 2104	1904	2024-12-26_c388195a72f2581ef88bafc032a0083b_floxif_mafia.exe	85
PID 1904 wrote to memory of 2104	1904	2024-12-26_c388195a72f2581ef88bafc032a0083b_floxif_mafia.exe	85
PID 1904 wrote to memory of 4452	1904	2024-12-26_c388195a72f2581ef88bafc032a0083b_floxif_mafia.exe	86
PID 1904 wrote to memory of 4452	1904	2024-12-26_c388195a72f2581ef88bafc032a0083b_floxif_mafia.exe	86
PID 1904 wrote to memory of 4452	1904	2024-12-26_c388195a72f2581ef88bafc032a0083b_floxif_mafia.exe	86
PID 1904 wrote to memory of 2684	1904	2024-12-26_c388195a72f2581ef88bafc032a0083b_floxif_mafia.exe	87
PID 1904 wrote to memory of 2684	1904	2024-12-26_c388195a72f2581ef88bafc032a0083b_floxif_mafia.exe	87
PID 1904 wrote to memory of 2684	1904	2024-12-26_c388195a72f2581ef88bafc032a0083b_floxif_mafia.exe	87
PID 1904 wrote to memory of 2756	1904	2024-12-26_c388195a72f2581ef88bafc032a0083b_floxif_mafia.exe	88
PID 1904 wrote to memory of 2756	1904	2024-12-26_c388195a72f2581ef88bafc032a0083b_floxif_mafia.exe	88
PID 1904 wrote to memory of 2756	1904	2024-12-26_c388195a72f2581ef88bafc032a0083b_floxif_mafia.exe	88
PID 1904 wrote to memory of 4532	1904	2024-12-26_c388195a72f2581ef88bafc032a0083b_floxif_mafia.exe	89
PID 1904 wrote to memory of 4532	1904	2024-12-26_c388195a72f2581ef88bafc032a0083b_floxif_mafia.exe	89
PID 1904 wrote to memory of 4532	1904	2024-12-26_c388195a72f2581ef88bafc032a0083b_floxif_mafia.exe	89
PID 1904 wrote to memory of 4984	1904	2024-12-26_c388195a72f2581ef88bafc032a0083b_floxif_mafia.exe	90
PID 1904 wrote to memory of 4984	1904	2024-12-26_c388195a72f2581ef88bafc032a0083b_floxif_mafia.exe	90
PID 1904 wrote to memory of 4984	1904	2024-12-26_c388195a72f2581ef88bafc032a0083b_floxif_mafia.exe	90
PID 1904 wrote to memory of 3780	1904	2024-12-26_c388195a72f2581ef88bafc032a0083b_floxif_mafia.exe	91
PID 1904 wrote to memory of 3780	1904	2024-12-26_c388195a72f2581ef88bafc032a0083b_floxif_mafia.exe	91
PID 1904 wrote to memory of 3780	1904	2024-12-26_c388195a72f2581ef88bafc032a0083b_floxif_mafia.exe	91
PID 1904 wrote to memory of 2376	1904	2024-12-26_c388195a72f2581ef88bafc032a0083b_floxif_mafia.exe	92
PID 1904 wrote to memory of 2376	1904	2024-12-26_c388195a72f2581ef88bafc032a0083b_floxif_mafia.exe	92
PID 1904 wrote to memory of 2376	1904	2024-12-26_c388195a72f2581ef88bafc032a0083b_floxif_mafia.exe	92

C:\Users\Admin\AppData\Local\Temp\2024-12-26_c388195a72f2581ef88bafc032a0083b_floxif_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2024-12-26_c388195a72f2581ef88bafc032a0083b_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:1904
- C:\Windows\SysWOW64\arp.exe
  arp -a
  2⤵
  - Network Service Discovery
  - System Location Discovery: System Language Discovery
  PID:548
- C:\Windows\SysWOW64\arp.exe
  arp -s 10.127.0.1 c9-26-aa-3b-e3-0f
  2⤵
  - Network Service Discovery
  - System Location Discovery: System Language Discovery
  PID:2104
- C:\Windows\SysWOW64\arp.exe
  arp -s 10.127.255.255 38-69-6d-4b-6a-4c
  2⤵
  - Network Service Discovery
  - System Location Discovery: System Language Discovery
  PID:4452
- C:\Windows\SysWOW64\arp.exe
  arp -s 49.12.169.208 4b-0b-8a-85-03-b2
  2⤵
  - Network Service Discovery
  - System Location Discovery: System Language Discovery
  PID:2684
- C:\Windows\SysWOW64\arp.exe
  arp -s 224.0.0.22 ab-d5-12-58-ba-f2
  2⤵
  - Network Service Discovery
  - System Location Discovery: System Language Discovery
  PID:2756
- C:\Windows\SysWOW64\arp.exe
  arp -s 224.0.0.251 7f-15-af-d6-fb-fc
  2⤵
  - Network Service Discovery
  - System Location Discovery: System Language Discovery
  PID:4532
- C:\Windows\SysWOW64\arp.exe
  arp -s 224.0.0.252 6e-78-33-0c-a8-1c
  2⤵
  - Network Service Discovery
  - System Location Discovery: System Language Discovery
  PID:4984
- C:\Windows\SysWOW64\arp.exe
  arp -s 239.255.255.250 5a-ee-71-e0-49-6b
  2⤵
  - Network Service Discovery
  - System Location Discovery: System Language Discovery
  PID:3780
- C:\Windows\SysWOW64\arp.exe
  arp -s 255.255.255.255 89-cc-63-dc-a0-20
  2⤵
  - Network Service Discovery
  - System Location Discovery: System Language Discovery
  PID:2376

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Event Triggered Execution

T1546

AppInit DLLs

T1546.010

Privilege Escalation

Event Triggered Execution

T1546

AppInit DLLs

T1546.010

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/1904-4-0x0000000010000000-0x0000000010033000-memory.dmp

Filesize
204KB

Download
memory/1904-6-0x00000000005C1000-0x00000000005C2000-memory.dmp

Filesize
4KB

Download
memory/1904-9-0x0000000010000000-0x0000000010033000-memory.dmp

Filesize
204KB

Download
memory/1904-7-0x00000000005C0000-0x00000000005F2000-memory.dmp

Filesize
200KB

Download