floxif | fd4da79586af628742db7acd47c57a55269f9c5929fc8fda20ce2fef42b6e728

Analysis

max time kernel
93s
max time network
94s
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 05:18

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General

Target

fd4da79586af628742db7acd47c57a55269f9c5929fc8fda20ce2fef42b6e728N.exe
Size

222KB
MD5

ed862a6156250d0c1e39201134aef2b0
SHA1

9448f2884cecca5d7140acc8c717458c01485e0f
SHA256

fd4da79586af628742db7acd47c57a55269f9c5929fc8fda20ce2fef42b6e728
SHA512

ddf041677f3f0cc8642d0cff6cafbd8fde0f306b4bc36282cf49fe68e910dda08dca8b6f160e951e8dacadfdc5fdb1031191e1bf88f623cda988ba4c32301458
SSDEEP

3072:k4QgNOd3z4HXwFJrokFyF5Zat/Vq09o+2lQBV+UdE+rECWp7hKt1Jjg:kOcegLrokFyENNrBV+UdvrEFp7hKt1Jk

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/0x000a000000023bf9-1.dat	floxif

ACProtect 1.3x - 1.4x DLL software 1 IoCs

Detects file using ACProtect software.

resource	yara_rule
behavioral2/files/0x000a000000023bf9-1.dat	acprotect

Loads dropped DLL 1 IoCs

pid	Process
4608	fd4da79586af628742db7acd47c57a55269f9c5929fc8fda20ce2fef42b6e728N.exe

UPX packed file 3 IoCs

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

upx

resource	yara_rule
behavioral2/files/0x000a000000023bf9-1.dat	upx
behavioral2/memory/4608-2-0x0000000010000000-0x0000000010030000-memory.dmp	upx
behavioral2/memory/4608-8-0x0000000010000000-0x0000000010030000-memory.dmp	upx

Drops file in Program Files directory 1 IoCs

description	ioc	Process
File created	C:\Program Files\Common Files\System\symsrv.dll	fd4da79586af628742db7acd47c57a55269f9c5929fc8fda20ce2fef42b6e728N.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	fd4da79586af628742db7acd47c57a55269f9c5929fc8fda20ce2fef42b6e728N.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4608	fd4da79586af628742db7acd47c57a55269f9c5929fc8fda20ce2fef42b6e728N.exe

C:\Users\Admin\AppData\Local\Temp\fd4da79586af628742db7acd47c57a55269f9c5929fc8fda20ce2fef42b6e728N.exe
"C:\Users\Admin\AppData\Local\Temp\fd4da79586af628742db7acd47c57a55269f9c5929fc8fda20ce2fef42b6e728N.exe"
1⤵
- Loads dropped DLL
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
PID:4608

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/4608-2-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download
memory/4608-6-0x000000002D450000-0x000000002D477000-memory.dmp

Filesize
156KB

Download
memory/4608-8-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download