floxif | d7e76831c602bf996420aa8693e4e23cfdb3e0ff8a6ce621ce8b68060943497b

Analysis

max time kernel
118s
max time network
118s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-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 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/0x000e0000000122ed-1.dat	floxif

ACProtect 1.3x - 1.4x DLL software 1 IoCs

Detects file using ACProtect software.

resource	yara_rule
behavioral1/files/0x000e0000000122ed-1.dat	acprotect

Loads dropped DLL 1 IoCs

pid	Process
2436	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
2980	arp.exe
2724	arp.exe
2800	arp.exe
2288	arp.exe
2756	arp.exe
2816	arp.exe
2692	arp.exe
2900	arp.exe
2716	arp.exe

UPX packed file 3 IoCs

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

upx

resource	yara_rule
behavioral1/files/0x000e0000000122ed-1.dat	upx
behavioral1/memory/2436-3-0x0000000010000000-0x0000000010033000-memory.dmp	upx
behavioral1/memory/2436-7-0x0000000010000000-0x0000000010033000-memory.dmp	upx

Drops file in Program Files directory 1 IoCs

description	ioc	Process
File created	C:\Program Files\Common Files\System\symsrv.dll	2024-12-26_c388195a72f2581ef88bafc032a0083b_floxif_mafia.exe

System Location Discovery: System Language Discovery 1 TTPs 9 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	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
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	2436	2024-12-26_c388195a72f2581ef88bafc032a0083b_floxif_mafia.exe

Suspicious use of WriteProcessMemory 32 IoCs

description	pid	Process	procid_target
PID 2436 wrote to memory of 2756	2436	2024-12-26_c388195a72f2581ef88bafc032a0083b_floxif_mafia.exe	31
PID 2436 wrote to memory of 2756	2436	2024-12-26_c388195a72f2581ef88bafc032a0083b_floxif_mafia.exe	31
PID 2436 wrote to memory of 2756	2436	2024-12-26_c388195a72f2581ef88bafc032a0083b_floxif_mafia.exe	31
PID 2436 wrote to memory of 2756	2436	2024-12-26_c388195a72f2581ef88bafc032a0083b_floxif_mafia.exe	31
PID 2436 wrote to memory of 2816	2436	2024-12-26_c388195a72f2581ef88bafc032a0083b_floxif_mafia.exe	33
PID 2436 wrote to memory of 2816	2436	2024-12-26_c388195a72f2581ef88bafc032a0083b_floxif_mafia.exe	33
PID 2436 wrote to memory of 2816	2436	2024-12-26_c388195a72f2581ef88bafc032a0083b_floxif_mafia.exe	33
PID 2436 wrote to memory of 2816	2436	2024-12-26_c388195a72f2581ef88bafc032a0083b_floxif_mafia.exe	33
PID 2436 wrote to memory of 2980	2436	2024-12-26_c388195a72f2581ef88bafc032a0083b_floxif_mafia.exe	34
PID 2436 wrote to memory of 2980	2436	2024-12-26_c388195a72f2581ef88bafc032a0083b_floxif_mafia.exe	34
PID 2436 wrote to memory of 2980	2436	2024-12-26_c388195a72f2581ef88bafc032a0083b_floxif_mafia.exe	34
PID 2436 wrote to memory of 2980	2436	2024-12-26_c388195a72f2581ef88bafc032a0083b_floxif_mafia.exe	34
PID 2436 wrote to memory of 2716	2436	2024-12-26_c388195a72f2581ef88bafc032a0083b_floxif_mafia.exe	35
PID 2436 wrote to memory of 2716	2436	2024-12-26_c388195a72f2581ef88bafc032a0083b_floxif_mafia.exe	35
PID 2436 wrote to memory of 2716	2436	2024-12-26_c388195a72f2581ef88bafc032a0083b_floxif_mafia.exe	35
PID 2436 wrote to memory of 2716	2436	2024-12-26_c388195a72f2581ef88bafc032a0083b_floxif_mafia.exe	35
PID 2436 wrote to memory of 2692	2436	2024-12-26_c388195a72f2581ef88bafc032a0083b_floxif_mafia.exe	37
PID 2436 wrote to memory of 2692	2436	2024-12-26_c388195a72f2581ef88bafc032a0083b_floxif_mafia.exe	37
PID 2436 wrote to memory of 2692	2436	2024-12-26_c388195a72f2581ef88bafc032a0083b_floxif_mafia.exe	37
PID 2436 wrote to memory of 2692	2436	2024-12-26_c388195a72f2581ef88bafc032a0083b_floxif_mafia.exe	37
PID 2436 wrote to memory of 2288	2436	2024-12-26_c388195a72f2581ef88bafc032a0083b_floxif_mafia.exe	39
PID 2436 wrote to memory of 2288	2436	2024-12-26_c388195a72f2581ef88bafc032a0083b_floxif_mafia.exe	39
PID 2436 wrote to memory of 2288	2436	2024-12-26_c388195a72f2581ef88bafc032a0083b_floxif_mafia.exe	39
PID 2436 wrote to memory of 2288	2436	2024-12-26_c388195a72f2581ef88bafc032a0083b_floxif_mafia.exe	39
PID 2436 wrote to memory of 2724	2436	2024-12-26_c388195a72f2581ef88bafc032a0083b_floxif_mafia.exe	41
PID 2436 wrote to memory of 2724	2436	2024-12-26_c388195a72f2581ef88bafc032a0083b_floxif_mafia.exe	41
PID 2436 wrote to memory of 2724	2436	2024-12-26_c388195a72f2581ef88bafc032a0083b_floxif_mafia.exe	41
PID 2436 wrote to memory of 2724	2436	2024-12-26_c388195a72f2581ef88bafc032a0083b_floxif_mafia.exe	41
PID 2436 wrote to memory of 2800	2436	2024-12-26_c388195a72f2581ef88bafc032a0083b_floxif_mafia.exe	42
PID 2436 wrote to memory of 2800	2436	2024-12-26_c388195a72f2581ef88bafc032a0083b_floxif_mafia.exe	42
PID 2436 wrote to memory of 2800	2436	2024-12-26_c388195a72f2581ef88bafc032a0083b_floxif_mafia.exe	42
PID 2436 wrote to memory of 2800	2436	2024-12-26_c388195a72f2581ef88bafc032a0083b_floxif_mafia.exe	42

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:2436
- C:\Windows\SysWOW64\arp.exe
  arp -a
  2⤵
  - Network Service Discovery
  - System Location Discovery: System Language Discovery
  PID:2756
- C:\Windows\SysWOW64\arp.exe
  arp -s 10.127.0.1 a1-cf-60-3c-1b-13
  2⤵
  - Network Service Discovery
  - System Location Discovery: System Language Discovery
  PID:2816
- C:\Windows\SysWOW64\arp.exe
  arp -s 10.127.255.255 bd-3d-01-4f-eb-bc
  2⤵
  - Network Service Discovery
  - System Location Discovery: System Language Discovery
  PID:2980
- C:\Windows\SysWOW64\arp.exe
  arp -s 136.243.76.170 24-12-c8-cb-53-0f
  2⤵
  - Network Service Discovery
  - System Location Discovery: System Language Discovery
  PID:2716
- C:\Windows\SysWOW64\arp.exe
  arp -s 224.0.0.22 a0-6e-6b-df-22-0e
  2⤵
  - Network Service Discovery
  - System Location Discovery: System Language Discovery
  PID:2692
- C:\Windows\SysWOW64\arp.exe
  arp -s 224.0.0.251 c6-74-a6-7a-be-ca
  2⤵
  - Network Service Discovery
  - System Location Discovery: System Language Discovery
  PID:2288
- C:\Windows\SysWOW64\arp.exe
  arp -s 224.0.0.252 66-a4-f1-95-3d-8b
  2⤵
  - Network Service Discovery
  - System Location Discovery: System Language Discovery
  PID:2724
- C:\Windows\SysWOW64\arp.exe
  arp -s 239.255.255.250 3e-c9-af-9d-66-f9
  2⤵
  - Network Service Discovery
  - System Location Discovery: System Language Discovery
  PID:2800
- C:\Windows\SysWOW64\arp.exe
  arp -s 255.255.255.255 c6-34-f1-0c-03-81
  2⤵
  - Network Service Discovery
  PID:2900

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/2436-3-0x0000000010000000-0x0000000010033000-memory.dmp

Filesize
204KB

Download
memory/2436-7-0x0000000010000000-0x0000000010033000-memory.dmp

Filesize
204KB

Download
memory/2436-5-0x0000000000EA0000-0x0000000000ED2000-memory.dmp

Filesize
200KB

Download