floxif | dee654f3cf65f4d57fdc0481a0e6d422ba189d9869858919c5efd2495e4a8a33

Analysis

max time kernel
95s
max time network
96s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
02-01-2025 06:01

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General

Target

dee654f3cf65f4d57fdc0481a0e6d422ba189d9869858919c5efd2495e4a8a33N.exe
Size

140KB
MD5

e47f3d3e6378b8bdf2db57b38522abb0
SHA1

8f330749b3acebf4395b008f96d8283360f2baf3
SHA256

dee654f3cf65f4d57fdc0481a0e6d422ba189d9869858919c5efd2495e4a8a33
SHA512

a2ad036d29e8c4b30148b50ea9bce30b60f513e1b6d7e33f111282b09c3d26f6f2c8cf1c98a4bfa3eab23a8a3c4066a630bd3ad0f7ebdcfae5c0f83d7b6258e2
SSDEEP

3072:nlOx/1iOCor2lQBV+UdE+rECWp7hKnHOb9:Q/xCSBV+UdvrEFp7hKnHOb9

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/0x000b000000023b7a-1.dat	floxif

ACProtect 1.3x - 1.4x DLL software 1 IoCs

Detects file using ACProtect software.

resource	yara_rule
behavioral2/files/0x000b000000023b7a-1.dat	acprotect

Loads dropped DLL 1 IoCs

pid	Process
3940	dee654f3cf65f4d57fdc0481a0e6d422ba189d9869858919c5efd2495e4a8a33N.exe

UPX packed file 3 IoCs

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

upx

resource	yara_rule
behavioral2/files/0x000b000000023b7a-1.dat	upx
behavioral2/memory/3940-4-0x0000000010000000-0x0000000010030000-memory.dmp	upx
behavioral2/memory/3940-10-0x0000000010000000-0x0000000010030000-memory.dmp	upx

Drops file in Program Files directory 1 IoCs

description	ioc	Process
File created	C:\Program Files\Common Files\System\symsrv.dll	dee654f3cf65f4d57fdc0481a0e6d422ba189d9869858919c5efd2495e4a8a33N.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	dee654f3cf65f4d57fdc0481a0e6d422ba189d9869858919c5efd2495e4a8a33N.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3940	dee654f3cf65f4d57fdc0481a0e6d422ba189d9869858919c5efd2495e4a8a33N.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
3940	dee654f3cf65f4d57fdc0481a0e6d422ba189d9869858919c5efd2495e4a8a33N.exe

C:\Users\Admin\AppData\Local\Temp\dee654f3cf65f4d57fdc0481a0e6d422ba189d9869858919c5efd2495e4a8a33N.exe
"C:\Users\Admin\AppData\Local\Temp\dee654f3cf65f4d57fdc0481a0e6d422ba189d9869858919c5efd2495e4a8a33N.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:3940

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/3940-4-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download
memory/3940-6-0x0000000000401000-0x0000000000402000-memory.dmp

Filesize
4KB

Download
memory/3940-10-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download
memory/3940-8-0x0000000000400000-0x0000000000410000-memory.dmp

Filesize
64KB

Download