floxif | 161793dc364a069b8a79fefaec818fa7b8b7af4d6d454178d3aa05c9801fdf02

Analysis

max time kernel
148s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
27-12-2024 12:26

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General

Target

2024-12-27_322c52c68ac333cf966da7def65f098a_floxif_hijackloader_mafia.exe
Size

2.7MB
MD5

322c52c68ac333cf966da7def65f098a
SHA1

aa22f124c5311a306a18b142bb320c9b50eb8d0e
SHA256

161793dc364a069b8a79fefaec818fa7b8b7af4d6d454178d3aa05c9801fdf02
SHA512

5c3da8debbe7a44c9e52c3e472f550d01a9f24a1ecad47faa47385232ea58c5155a70a6e6a6244c92bb3a3ba7c2ac25aefa6550ec8584606de5381b0ff05eaac
SSDEEP

49152:Flks4A6lVLX6Sc602NUFFIIsTp69FlNN7boUvH6u//zHkwhXPwMQ9i9ZMW/KMZKC:/n6r6+02UFIIsTY9Fl/7boUi+wwZPwMl

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/0x000c000000023b30-1.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/0x000c000000023b30-1.dat	acprotect

Loads dropped DLL 5 IoCs

pid	Process
1620	2024-12-27_322c52c68ac333cf966da7def65f098a_floxif_hijackloader_mafia.exe
508	WerFault.exe
2604	WerFault.exe
4312	WerFault.exe
3968	WerFault.exe

UPX packed file 3 IoCs

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

upx

resource	yara_rule
behavioral2/files/0x000c000000023b30-1.dat	upx
behavioral2/memory/1620-4-0x0000000010000000-0x0000000010030000-memory.dmp	upx
behavioral2/memory/1620-13-0x0000000010000000-0x0000000010030000-memory.dmp	upx

Drops file in Program Files directory 1 IoCs

description	ioc	Process
File created	C:\Program Files\Common Files\System\symsrv.dll	2024-12-27_322c52c68ac333cf966da7def65f098a_floxif_hijackloader_mafia.exe

Program crash 2 IoCs

pid	pid_target	Process	procid_target
2604	1620	WerFault.exe	81
3968	1620	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	2024-12-27_322c52c68ac333cf966da7def65f098a_floxif_hijackloader_mafia.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1620	2024-12-27_322c52c68ac333cf966da7def65f098a_floxif_hijackloader_mafia.exe
1620	2024-12-27_322c52c68ac333cf966da7def65f098a_floxif_hijackloader_mafia.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1620	2024-12-27_322c52c68ac333cf966da7def65f098a_floxif_hijackloader_mafia.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1620	2024-12-27_322c52c68ac333cf966da7def65f098a_floxif_hijackloader_mafia.exe

C:\Users\Admin\AppData\Local\Temp\2024-12-27_322c52c68ac333cf966da7def65f098a_floxif_hijackloader_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2024-12-27_322c52c68ac333cf966da7def65f098a_floxif_hijackloader_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
- Suspicious use of SetWindowsHookEx
PID:1620
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1620 -s 804
  2⤵
  - Loads dropped DLL
  - Program crash
  PID:2604
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1620 -s 816
  2⤵
  - Loads dropped DLL
  - Program crash
  PID:3968

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 176 -p 1620 -ip 1620
1⤵
- Loads dropped DLL
PID:508

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 524 -p 1620 -ip 1620
1⤵
- Loads dropped DLL
PID:4312

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/1620-4-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download
memory/1620-6-0x0000000000A91000-0x0000000000A92000-memory.dmp

Filesize
4KB

Download
memory/1620-13-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download
memory/1620-11-0x0000000000A90000-0x0000000000D38000-memory.dmp

Filesize
2.7MB

Download