floxif | 32d498a575c5f956e5cbd58f3609bc68371f3188cb0f7309ae19df926855d76a

Analysis

max time kernel
92s
max time network
143s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
10-12-2024 12:36

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General

Target

2024-12-10_e299a0e626fb883a51410a05aafaca66_bkransomware_floxif.exe
Size

2.4MB
MD5

e299a0e626fb883a51410a05aafaca66
SHA1

9fc85b235e3e4cec40f4a53a112cafbc2d536b2d
SHA256

32d498a575c5f956e5cbd58f3609bc68371f3188cb0f7309ae19df926855d76a
SHA512

e43d4d6331b06736552a4373c9b113ecd58bb9bab26aa6059bc7ba19e21fe16e5877f02b76073740eb7a5920b8bac21570f8a401090c612c3233661d67c971b1
SSDEEP

49152:gfYBXqJOaWxfAHDMwBX+UPZdia+vDhw7JzznqMkFgTGEHM1I:gQhqJOaWxYHnBX+UPZdiFhw9fnqMkFgZ

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/0x000c000000023b26-1.dat	floxif

ACProtect 1.3x - 1.4x DLL software 1 IoCs

Detects file using ACProtect software.

resource	yara_rule
behavioral2/files/0x000c000000023b26-1.dat	acprotect

Loads dropped DLL 1 IoCs

pid	Process
2584	2024-12-10_e299a0e626fb883a51410a05aafaca66_bkransomware_floxif.exe

UPX packed file 3 IoCs

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

upx

resource	yara_rule
behavioral2/files/0x000c000000023b26-1.dat	upx
behavioral2/memory/2584-4-0x0000000010000000-0x0000000010030000-memory.dmp	upx
behavioral2/memory/2584-15-0x0000000010000000-0x0000000010030000-memory.dmp	upx

Drops file in Program Files directory 1 IoCs

description	ioc	Process
File created	C:\Program Files\Common Files\System\symsrv.dll	2024-12-10_e299a0e626fb883a51410a05aafaca66_bkransomware_floxif.exe

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	2024-12-10_e299a0e626fb883a51410a05aafaca66_bkransomware_floxif.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2584	2024-12-10_e299a0e626fb883a51410a05aafaca66_bkransomware_floxif.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2584	2024-12-10_e299a0e626fb883a51410a05aafaca66_bkransomware_floxif.exe

C:\Users\Admin\AppData\Local\Temp\2024-12-10_e299a0e626fb883a51410a05aafaca66_bkransomware_floxif.exe
"C:\Users\Admin\AppData\Local\Temp\2024-12-10_e299a0e626fb883a51410a05aafaca66_bkransomware_floxif.exe"
1⤵
- Loads dropped DLL
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
PID:2584

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/2584-4-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download
memory/2584-15-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download
memory/2584-13-0x0000000000110000-0x000000000036D000-memory.dmp

Filesize
2.4MB

Download