floxif | 8b3171a39566ee6846e9e8e49c9cfc7afb904343677b068fbebfe7e807085d21

Analysis

max time kernel
74s
max time network
16s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
08-01-2025 18:26

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General

Target

8b3171a39566ee6846e9e8e49c9cfc7afb904343677b068fbebfe7e807085d21N.exe
Size

152KB
MD5

80d4e40babae5fc087171daf38f4c9f0
SHA1

5054641c45476cb72e6aeb295f04713ff4b79aeb
SHA256

8b3171a39566ee6846e9e8e49c9cfc7afb904343677b068fbebfe7e807085d21
SHA512

100c89ad1fb0d5044db7c7a787e74c5eca36c9edcafada51fa03a98fe52d3afd829d4bfa40c6f6298682ca4bd2c5856d19d4b6086200683623b7721423b0edd0
SSDEEP

3072:b/cLncLCc4px8VTI9Uo62ibQ2lQBV+UdE+rECWp7hKzySQVVg:zclvpxN962DBV+UdvrEFp7hKzyJVg

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/0x000f0000000139a5-1.dat	floxif

ACProtect 1.3x - 1.4x DLL software 1 IoCs

Detects file using ACProtect software.

resource	yara_rule
behavioral1/files/0x000f0000000139a5-1.dat	acprotect

Loads dropped DLL 1 IoCs

pid	Process
1224	8b3171a39566ee6846e9e8e49c9cfc7afb904343677b068fbebfe7e807085d21N.exe

UPX packed file 3 IoCs

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

upx

resource	yara_rule
behavioral1/files/0x000f0000000139a5-1.dat	upx
behavioral1/memory/1224-3-0x0000000010000000-0x0000000010030000-memory.dmp	upx
behavioral1/memory/1224-6-0x0000000010000000-0x0000000010030000-memory.dmp	upx

Drops file in Program Files directory 1 IoCs

description	ioc	Process
File created	C:\Program Files\Common Files\System\symsrv.dll	8b3171a39566ee6846e9e8e49c9cfc7afb904343677b068fbebfe7e807085d21N.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	8b3171a39566ee6846e9e8e49c9cfc7afb904343677b068fbebfe7e807085d21N.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1224	8b3171a39566ee6846e9e8e49c9cfc7afb904343677b068fbebfe7e807085d21N.exe

C:\Users\Admin\AppData\Local\Temp\8b3171a39566ee6846e9e8e49c9cfc7afb904343677b068fbebfe7e807085d21N.exe
"C:\Users\Admin\AppData\Local\Temp\8b3171a39566ee6846e9e8e49c9cfc7afb904343677b068fbebfe7e807085d21N.exe"
1⤵
- Loads dropped DLL
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
PID:1224

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/1224-3-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download
memory/1224-5-0x0000000000409000-0x000000000040C000-memory.dmp

Filesize
12KB

Download
memory/1224-6-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download