floxif | 4d73b079d7b995fd54db46a69c9635096a3f319c4f2628a077ba6286d046f143

Analysis

max time kernel
149s
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
02-02-2025 09:19

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General

Target

4d73b079d7b995fd54db46a69c9635096a3f319c4f2628a077ba6286d046f143.exe
Size

286KB
MD5

040d8bb41aa5a01951fab01b29fd81af
SHA1

c8d12e2187185948bddba8d22b2305fce707f4d7
SHA256

4d73b079d7b995fd54db46a69c9635096a3f319c4f2628a077ba6286d046f143
SHA512

797e1b8d535cc09f267de586d8e3ecbdc4abd5024de24a22655ed18723c5c08fb783bc60e04a8ec819371d1056f5b13f898e45d995d8819615560d5b55234004
SSDEEP

6144:tiNR/5kHouyXnZhB+h8WHlBV+UdvrEFp7hK1:tir/JuyXnPB+h8WHlBjvrEH7W

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/0x000c000000023b9a-1.dat	floxif

ACProtect 1.3x - 1.4x DLL software 1 IoCs

Detects file using ACProtect software.

resource	yara_rule
behavioral2/files/0x000c000000023b9a-1.dat	acprotect

Loads dropped DLL 1 IoCs

pid	Process
4880	4d73b079d7b995fd54db46a69c9635096a3f319c4f2628a077ba6286d046f143.exe

UPX packed file 3 IoCs

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

upx

resource	yara_rule
behavioral2/memory/4880-2-0x0000000010000000-0x0000000010030000-memory.dmp	upx
behavioral2/files/0x000c000000023b9a-1.dat	upx
behavioral2/memory/4880-7-0x0000000010000000-0x0000000010030000-memory.dmp	upx

Drops file in Program Files directory 1 IoCs

description	ioc	Process
File created	C:\Program Files\Common Files\System\symsrv.dll	4d73b079d7b995fd54db46a69c9635096a3f319c4f2628a077ba6286d046f143.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	4d73b079d7b995fd54db46a69c9635096a3f319c4f2628a077ba6286d046f143.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4880	4d73b079d7b995fd54db46a69c9635096a3f319c4f2628a077ba6286d046f143.exe

C:\Users\Admin\AppData\Local\Temp\4d73b079d7b995fd54db46a69c9635096a3f319c4f2628a077ba6286d046f143.exe
"C:\Users\Admin\AppData\Local\Temp\4d73b079d7b995fd54db46a69c9635096a3f319c4f2628a077ba6286d046f143.exe"
1⤵
- Loads dropped DLL
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
PID:4880

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/4880-2-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download
memory/4880-5-0x00000000008E0000-0x0000000000917000-memory.dmp

Filesize
220KB

Download
memory/4880-7-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download