floxif | 566c76f10e58d3e48fdacc6c628ff28d7b03dba3b89421757898667f9b0b7217

Analysis

max time kernel
117s
max time network
118s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
01-01-2025 20:33

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General

Target

566c76f10e58d3e48fdacc6c628ff28d7b03dba3b89421757898667f9b0b7217N.exe
Size

2.3MB
MD5

f7cf88219b66c14b0e5b2104922d65a0
SHA1

3c6162e6758968c0515028f75c92d535fa20aedb
SHA256

566c76f10e58d3e48fdacc6c628ff28d7b03dba3b89421757898667f9b0b7217
SHA512

c43bc645417e0df5624a35dc7058abb42b6080dd81b8fff4dc5557fd20a839283ff5b1fefba851d9d6176704990c96c3bfe17aafe8942030fd289763d1e76c80
SSDEEP

49152:NrK/zuP753ZS2dJeApY+pmbee4lvwCJJ+iwSKMeeaUUm01m+RvIyjgXzjviDIlwb:NrKKP7vS2fZY+puexlvwCJJzw5mYRvIG

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
behavioral1/files/0x0007000000012117-1.dat	floxif

ACProtect 1.3x - 1.4x DLL software 1 IoCs

Detects file using ACProtect software.

resource	yara_rule
behavioral1/files/0x0007000000012117-1.dat	acprotect

Loads dropped DLL 1 IoCs

pid	Process
1732	566c76f10e58d3e48fdacc6c628ff28d7b03dba3b89421757898667f9b0b7217N.exe

UPX packed file 3 IoCs

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

upx

resource	yara_rule
behavioral1/memory/1732-3-0x0000000010000000-0x0000000010030000-memory.dmp	upx
behavioral1/files/0x0007000000012117-1.dat	upx
behavioral1/memory/1732-8-0x0000000010000000-0x0000000010030000-memory.dmp	upx

Drops file in Program Files directory 1 IoCs

description	ioc	Process
File created	C:\Program Files\Common Files\System\symsrv.dll	566c76f10e58d3e48fdacc6c628ff28d7b03dba3b89421757898667f9b0b7217N.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	566c76f10e58d3e48fdacc6c628ff28d7b03dba3b89421757898667f9b0b7217N.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1732	566c76f10e58d3e48fdacc6c628ff28d7b03dba3b89421757898667f9b0b7217N.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1732	566c76f10e58d3e48fdacc6c628ff28d7b03dba3b89421757898667f9b0b7217N.exe

C:\Users\Admin\AppData\Local\Temp\566c76f10e58d3e48fdacc6c628ff28d7b03dba3b89421757898667f9b0b7217N.exe
"C:\Users\Admin\AppData\Local\Temp\566c76f10e58d3e48fdacc6c628ff28d7b03dba3b89421757898667f9b0b7217N.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:1732

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

\Program Files\Common Files\System\symsrv.dll

Filesize
67KB

MD5
7574cf2c64f35161ab1292e2f532aabf

SHA1
14ba3fa927a06224dfe587014299e834def4644f

SHA256
de055a89de246e629a8694bde18af2b1605e4b9b493c7e4aef669dd67acf5085

SHA512
4db19f2d8d5bc1c7bbb812d3fa9c43b80fa22140b346d2760f090b73aed8a5177edb4bddc647a6ebd5a2db8565be5a1a36a602b0d759e38540d9a584ba5896ab

Download Submit
memory/1732-3-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download
memory/1732-5-0x0000000000FB1000-0x0000000000FB2000-memory.dmp

Filesize
4KB

Download
memory/1732-8-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download
memory/1732-6-0x0000000000FB0000-0x00000000011FB000-memory.dmp

Filesize
2.3MB

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