floxif | 1d7438e97e2df9baf14c6d7c34771e9c0fe62467767a79c2018488f6e4741d68

Analysis

max time kernel
96s
max time network
144s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
13-12-2024 23:22

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General

Target

2024-12-13_df333d85d5056d415822997eaceec252_floxif_mafia.exe
Size

2.5MB
MD5

df333d85d5056d415822997eaceec252
SHA1

93dea5ac23b6888b9ec3bc7857dfc79a7847a46b
SHA256

1d7438e97e2df9baf14c6d7c34771e9c0fe62467767a79c2018488f6e4741d68
SHA512

c1e1ba98e6461bc1894800051f27ae2452f1cdf3546e73cbc2ad297a2c32cc1d2312a73a38c6c2c2f83e119ae910328e8ff4eb42f4d073a6163ca56e750a7c7c
SSDEEP

49152:pmhcbMDOyZLivN3iK0fqOw7XYym7U4aFvsO1CThFhu7vLruwqf+ty:pmpiyZuvN3GiOw7XSU4aFvsO1X7v+

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/0x000c000000023b9e-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/0x000c000000023b9e-1.dat	acprotect

Loads dropped DLL 5 IoCs

pid	Process
2396	2024-12-13_df333d85d5056d415822997eaceec252_floxif_mafia.exe
4772	WerFault.exe
444	WerFault.exe
4556	WerFault.exe
3992	WerFault.exe

UPX packed file 3 IoCs

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

upx

resource	yara_rule
behavioral2/memory/2396-3-0x0000000010000000-0x0000000010030000-memory.dmp	upx
behavioral2/files/0x000c000000023b9e-1.dat	upx
behavioral2/memory/2396-12-0x0000000010000000-0x0000000010030000-memory.dmp	upx

Drops file in Program Files directory 1 IoCs

description	ioc	Process
File created	C:\Program Files\Common Files\System\symsrv.dll	2024-12-13_df333d85d5056d415822997eaceec252_floxif_mafia.exe

Program crash 2 IoCs

pid	pid_target	Process	procid_target
444	2396	WerFault.exe	81
3992	2396	WerFault.exe	81

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	2024-12-13_df333d85d5056d415822997eaceec252_floxif_mafia.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2396	2024-12-13_df333d85d5056d415822997eaceec252_floxif_mafia.exe
2396	2024-12-13_df333d85d5056d415822997eaceec252_floxif_mafia.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2396	2024-12-13_df333d85d5056d415822997eaceec252_floxif_mafia.exe

C:\Users\Admin\AppData\Local\Temp\2024-12-13_df333d85d5056d415822997eaceec252_floxif_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2024-12-13_df333d85d5056d415822997eaceec252_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:2396
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2396 -s 620
  2⤵
  - Loads dropped DLL
  - Program crash
  PID:444
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2396 -s 628
  2⤵
  - Loads dropped DLL
  - Program crash
  PID:3992

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 2396 -ip 2396
1⤵
- Loads dropped DLL
PID:4772

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 528 -p 2396 -ip 2396
1⤵
- Loads dropped DLL
PID:4556

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

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/2396-3-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download
memory/2396-5-0x00000000007C1000-0x00000000007C2000-memory.dmp

Filesize
4KB

Download
memory/2396-12-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download
memory/2396-10-0x00000000007C0000-0x0000000000A3D000-memory.dmp

Filesize
2.5MB

Download