floxif | 33e44d8f291660d96b09bd53e089fcaca73976a759c6ace9cf1502aa69d95d79

Analysis

max time kernel
122s
max time network
123s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
07-01-2025 09:47

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General

Target

33e44d8f291660d96b09bd53e089fcaca73976a759c6ace9cf1502aa69d95d79.exe
Size

286KB
MD5

d929288fe6aa556d2b34244be05f0f30
SHA1

0f5e11aa992775666a657e83d0905c95912760f4
SHA256

33e44d8f291660d96b09bd53e089fcaca73976a759c6ace9cf1502aa69d95d79
SHA512

b872dd143ab3f4edd5c1087d0a53a600f23d26451102ef9164fe1a9e077fc993392ce788193694343a5b70809be1e0d712afdb98cc0d3088ec7fda8124b320ec
SSDEEP

6144:uqgKNkhSR/5kHouyXnZhB+h8WHlBV+UdvrEFp7hKiWTU1:uqgKNkhm/JuyXnPB+h8WHlBjvrEH7gU1

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
2168	33e44d8f291660d96b09bd53e089fcaca73976a759c6ace9cf1502aa69d95d79.exe

UPX packed file 3 IoCs

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

upx

resource	yara_rule
behavioral1/files/0x0007000000012117-1.dat	upx
behavioral1/memory/2168-3-0x0000000010000000-0x0000000010030000-memory.dmp	upx
behavioral1/memory/2168-7-0x0000000010000000-0x0000000010030000-memory.dmp	upx

Drops file in Program Files directory 1 IoCs

description	ioc	Process
File created	C:\Program Files\Common Files\System\symsrv.dll	33e44d8f291660d96b09bd53e089fcaca73976a759c6ace9cf1502aa69d95d79.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	33e44d8f291660d96b09bd53e089fcaca73976a759c6ace9cf1502aa69d95d79.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2168	33e44d8f291660d96b09bd53e089fcaca73976a759c6ace9cf1502aa69d95d79.exe

C:\Users\Admin\AppData\Local\Temp\33e44d8f291660d96b09bd53e089fcaca73976a759c6ace9cf1502aa69d95d79.exe
"C:\Users\Admin\AppData\Local\Temp\33e44d8f291660d96b09bd53e089fcaca73976a759c6ace9cf1502aa69d95d79.exe"
1⤵
- Loads dropped DLL
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
PID:2168

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/2168-3-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download
memory/2168-5-0x0000000000F70000-0x0000000000FA7000-memory.dmp

Filesize
220KB

Download
memory/2168-7-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download