floxif | 28cf2a4dc29b8621cc2ca7641a6976a5d4cbc5a1b75ad118e76598611f0fba54

Analysis

max time kernel
95s
max time network
128s
platform
windows10-2004_x64
resource
win10v2004-20250129-en
resource tags

arch:x64arch:x86image:win10v2004-20250129-enlocale:en-usos:windows10-2004-x64system
submitted
02-02-2025 01:55

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General

Target

28cf2a4dc29b8621cc2ca7641a6976a5d4cbc5a1b75ad118e76598611f0fba54.exe
Size

286KB
MD5

e97d1526329dcc95b027079995ff9807
SHA1

734aba9d1dff3eba30323da46cacf77b498a06ee
SHA256

28cf2a4dc29b8621cc2ca7641a6976a5d4cbc5a1b75ad118e76598611f0fba54
SHA512

ed72b476005c73dfe7aedc473418d15b6ac8fa466ac17af00be1d49a8f730611dcb875c6fd51aa6abd8669eedb0d033b8efa12a3ee72d84d9ccff63670be9355
SSDEEP

6144:P2NkhSR/5kHouyXnZhB+h8WHlBV+UdvrEFp7hKst:P2Nkhm/JuyXnPB+h8WHlBjvrEH7/t

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/0x000c000000023b6d-1.dat	floxif

ACProtect 1.3x - 1.4x DLL software 1 IoCs

Detects file using ACProtect software.

resource	yara_rule
behavioral2/files/0x000c000000023b6d-1.dat	acprotect

Loads dropped DLL 1 IoCs

pid	Process
4560	28cf2a4dc29b8621cc2ca7641a6976a5d4cbc5a1b75ad118e76598611f0fba54.exe

UPX packed file 3 IoCs

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

upx

resource	yara_rule
behavioral2/files/0x000c000000023b6d-1.dat	upx
behavioral2/memory/4560-2-0x0000000010000000-0x0000000010030000-memory.dmp	upx
behavioral2/memory/4560-7-0x0000000010000000-0x0000000010030000-memory.dmp	upx

Drops file in Program Files directory 1 IoCs

description	ioc	Process
File created	C:\Program Files\Common Files\System\symsrv.dll	28cf2a4dc29b8621cc2ca7641a6976a5d4cbc5a1b75ad118e76598611f0fba54.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	28cf2a4dc29b8621cc2ca7641a6976a5d4cbc5a1b75ad118e76598611f0fba54.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4560	28cf2a4dc29b8621cc2ca7641a6976a5d4cbc5a1b75ad118e76598611f0fba54.exe

C:\Users\Admin\AppData\Local\Temp\28cf2a4dc29b8621cc2ca7641a6976a5d4cbc5a1b75ad118e76598611f0fba54.exe
"C:\Users\Admin\AppData\Local\Temp\28cf2a4dc29b8621cc2ca7641a6976a5d4cbc5a1b75ad118e76598611f0fba54.exe"
1⤵
- Loads dropped DLL
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
PID:4560

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/4560-2-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download
memory/4560-5-0x0000000000DE0000-0x0000000000E17000-memory.dmp

Filesize
220KB

Download
memory/4560-7-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download