floxif | 0748ed71c761d89c898f6acd0719d5cddc72aae70951fa4fccc20d867eaa11ad

Analysis

max time kernel
95s
max time network
141s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
19-11-2024 13:39

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General

Target

2024-11-19_d8850f2c71329af3820c728fe5391525_floxif_mafia.exe
Size

1.8MB
MD5

d8850f2c71329af3820c728fe5391525
SHA1

d6107f772abcb64cc3bba639913bfb75104b21c6
SHA256

0748ed71c761d89c898f6acd0719d5cddc72aae70951fa4fccc20d867eaa11ad
SHA512

1d35c2c835c6dfae1828e710520395daef7cbefbd178037e3e55f2c44cad75ba50793359675594ac7afeee8c738eb988f37495ac09ba1f8e72038ed5e8cbeabf
SSDEEP

49152:W5Zp6SIguuBR5+s5ZvDwpPDwHvehhFKT8oBaqBeqyZSERu9WT:W5qSfuuRv0pPEehhFMBpBeq0F

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
behavioral2/files/0x000a000000023c09-1.dat	floxif

ACProtect 1.3x - 1.4x DLL software 1 IoCs

Detects file using ACProtect software.

resource	yara_rule
behavioral2/files/0x000a000000023c09-1.dat	acprotect

Loads dropped DLL 1 IoCs

pid	Process
4868	2024-11-19_d8850f2c71329af3820c728fe5391525_floxif_mafia.exe

UPX packed file 3 IoCs

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

upx

resource	yara_rule
behavioral2/files/0x000a000000023c09-1.dat	upx
behavioral2/memory/4868-4-0x0000000010000000-0x0000000010030000-memory.dmp	upx
behavioral2/memory/4868-9-0x0000000010000000-0x0000000010030000-memory.dmp	upx

Drops file in Program Files directory 1 IoCs

description	ioc	Process
File created	C:\Program Files\Common Files\System\symsrv.dll	2024-11-19_d8850f2c71329af3820c728fe5391525_floxif_mafia.exe

Program crash 2 IoCs

pid	pid_target	Process	procid_target
1292	4868	WerFault.exe	82
3620	4868	WerFault.exe	82

System Location Discovery: System Language Discovery 1 TTPs 1 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	2024-11-19_d8850f2c71329af3820c728fe5391525_floxif_mafia.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
4868	2024-11-19_d8850f2c71329af3820c728fe5391525_floxif_mafia.exe
4868	2024-11-19_d8850f2c71329af3820c728fe5391525_floxif_mafia.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4868	2024-11-19_d8850f2c71329af3820c728fe5391525_floxif_mafia.exe

C:\Users\Admin\AppData\Local\Temp\2024-11-19_d8850f2c71329af3820c728fe5391525_floxif_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2024-11-19_d8850f2c71329af3820c728fe5391525_floxif_mafia.exe"
1⤵
- Loads dropped DLL
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4868
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4868 -s 652
  2⤵
  - Program crash
  PID:1292
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4868 -s 668
  2⤵
  - Program crash
  PID:3620

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 432 -p 4868 -ip 4868
1⤵
PID:1748

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 496 -p 4868 -ip 4868
1⤵
PID:2756

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

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

Filesize
67KB

MD5
7574cf2c64f35161ab1292e2f532aabf

SHA1
14ba3fa927a06224dfe587014299e834def4644f

SHA256
de055a89de246e629a8694bde18af2b1605e4b9b493c7e4aef669dd67acf5085

SHA512
4db19f2d8d5bc1c7bbb812d3fa9c43b80fa22140b346d2760f090b73aed8a5177edb4bddc647a6ebd5a2db8565be5a1a36a602b0d759e38540d9a584ba5896ab

Download Submit
memory/4868-4-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download
memory/4868-6-0x0000000000BA1000-0x0000000000BA2000-memory.dmp

Filesize
4KB

Download
memory/4868-9-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download
memory/4868-7-0x0000000000BA0000-0x0000000000D5D000-memory.dmp

Filesize
1.7MB

Download