floxif | c1a15c1df8c42dcd90790ccebe6ac948603722ab5ac1cc4922f58590cf77e54a

Analysis

max time kernel
110s
max time network
138s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
20-01-2025 12:36

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General

Target

2025-01-20_b4d0de11077c4a68c4d6e7b7d15b88e5_floxif_mafia.exe
Size

1.8MB
MD5

b4d0de11077c4a68c4d6e7b7d15b88e5
SHA1

448add7bdced91439e608cc061df60ce9987c484
SHA256

c1a15c1df8c42dcd90790ccebe6ac948603722ab5ac1cc4922f58590cf77e54a
SHA512

ed8cbc15e1ec417669cf189095a5631b24e7969270e41f0cd400ae54d405f4bd7a8676dfb33d567083badb0c6f090154a13773e384b204cd0ba3c11a8cf09a54
SSDEEP

49152:N5Zp6SIguuBR5+s5vvDwpPtw2vehhF4T8bBaqBeqyZSERu9WJ:N5qSfuu3v0pPBehhFVBpBeq0v

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/0x000d000000023b64-1.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/0x000d000000023b64-1.dat	acprotect

Loads dropped DLL 5 IoCs

pid	Process
3568	2025-01-20_b4d0de11077c4a68c4d6e7b7d15b88e5_floxif_mafia.exe
2360	WerFault.exe
1640	WerFault.exe
1092	WerFault.exe
3456	WerFault.exe

UPX packed file 3 IoCs

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

upx

resource	yara_rule
behavioral2/memory/3568-4-0x0000000010000000-0x0000000010030000-memory.dmp	upx
behavioral2/files/0x000d000000023b64-1.dat	upx
behavioral2/memory/3568-13-0x0000000010000000-0x0000000010030000-memory.dmp	upx

Drops file in Program Files directory 1 IoCs

description	ioc	Process
File created	C:\Program Files\Common Files\System\symsrv.dll	2025-01-20_b4d0de11077c4a68c4d6e7b7d15b88e5_floxif_mafia.exe

Program crash 2 IoCs

pid	pid_target	Process	procid_target
1640	3568	WerFault.exe	82
3456	3568	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	2025-01-20_b4d0de11077c4a68c4d6e7b7d15b88e5_floxif_mafia.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
3568	2025-01-20_b4d0de11077c4a68c4d6e7b7d15b88e5_floxif_mafia.exe
3568	2025-01-20_b4d0de11077c4a68c4d6e7b7d15b88e5_floxif_mafia.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3568	2025-01-20_b4d0de11077c4a68c4d6e7b7d15b88e5_floxif_mafia.exe

C:\Users\Admin\AppData\Local\Temp\2025-01-20_b4d0de11077c4a68c4d6e7b7d15b88e5_floxif_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-01-20_b4d0de11077c4a68c4d6e7b7d15b88e5_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:3568
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3568 -s 632
  2⤵
  - Loads dropped DLL
  - Program crash
  PID:1640
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3568 -s 656
  2⤵
  - Loads dropped DLL
  - Program crash
  PID:3456

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 416 -p 3568 -ip 3568
1⤵
- Loads dropped DLL
PID:2360

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 504 -p 3568 -ip 3568
1⤵
- Loads dropped DLL
PID:1092

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/3568-4-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download
memory/3568-6-0x0000000000B81000-0x0000000000B82000-memory.dmp

Filesize
4KB

Download
memory/3568-13-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download
memory/3568-11-0x0000000000B80000-0x0000000000D3D000-memory.dmp

Filesize
1.7MB

Download