floxif | 4f7043a4bc46fcdb4b8dcf1538715ba12013b90e5e60ec597a58db2ec609ec0d

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
01-01-2025 12:44

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General

Target

4f7043a4bc46fcdb4b8dcf1538715ba12013b90e5e60ec597a58db2ec609ec0d.exe
Size

286KB
MD5

86840896db2f7985e520d451ee551f4f
SHA1

3720cbf2f6f0762544f63e383676157b1e82aef4
SHA256

4f7043a4bc46fcdb4b8dcf1538715ba12013b90e5e60ec597a58db2ec609ec0d
SHA512

bfe13273e9c4a4b8321f33f35325bceb2b1c34cac3ecf72bb0be6b58c4b4cf5b343a055e316ece992b46447e26f667c0beb9c566a024aceb73d226ee78e233ba
SSDEEP

6144:P7gKNkhSR/5+muyXnZhB+h8WHlBV+UdvrEFp7hK5T:P7gKNkhm/0muyXnPB+h8WHlBjvrEH70T

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/0x000a000000023c87-1.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/0x000a000000023c87-1.dat	acprotect

Loads dropped DLL 1 IoCs

pid	Process
3008	4f7043a4bc46fcdb4b8dcf1538715ba12013b90e5e60ec597a58db2ec609ec0d.exe

UPX packed file 3 IoCs

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

upx

resource	yara_rule
behavioral2/files/0x000a000000023c87-1.dat	upx
behavioral2/memory/3008-2-0x0000000010000000-0x0000000010030000-memory.dmp	upx
behavioral2/memory/3008-7-0x0000000010000000-0x0000000010030000-memory.dmp	upx

Drops file in Program Files directory 1 IoCs

description	ioc	Process
File created	C:\Program Files\Common Files\System\symsrv.dll	4f7043a4bc46fcdb4b8dcf1538715ba12013b90e5e60ec597a58db2ec609ec0d.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	4f7043a4bc46fcdb4b8dcf1538715ba12013b90e5e60ec597a58db2ec609ec0d.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3008	4f7043a4bc46fcdb4b8dcf1538715ba12013b90e5e60ec597a58db2ec609ec0d.exe

C:\Users\Admin\AppData\Local\Temp\4f7043a4bc46fcdb4b8dcf1538715ba12013b90e5e60ec597a58db2ec609ec0d.exe
"C:\Users\Admin\AppData\Local\Temp\4f7043a4bc46fcdb4b8dcf1538715ba12013b90e5e60ec597a58db2ec609ec0d.exe"
1⤵
- Loads dropped DLL
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
PID:3008

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/3008-2-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download
memory/3008-7-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download
memory/3008-5-0x0000000000130000-0x0000000000167000-memory.dmp

Filesize
220KB

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