floxif | 5ee3b3e9b5f694b9c2e052f9d027d9fb505ab19f7be01b74f162be8cc3d3ef8a

Analysis

max time kernel
14s
max time network
19s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
04-01-2025 14:01

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General

Target

5ee3b3e9b5f694b9c2e052f9d027d9fb505ab19f7be01b74f162be8cc3d3ef8aN.exe
Size

468KB
MD5

079950edb2de82b708dff9d94108d020
SHA1

fc209acb7dd668d2eb5ff6bd52f0469467c28ba0
SHA256

5ee3b3e9b5f694b9c2e052f9d027d9fb505ab19f7be01b74f162be8cc3d3ef8a
SHA512

b48728df6d5ebaa54cf014e074d160471070069451b0f920949b319ed17b830770af73eaf18f46405e23c4ffb64587aeaad51645abcbed30d63abafd2dfd12f8
SSDEEP

12288:nmCXdMW0pIaWg8ODEm4Qa2qFdbsxX7VtvhyBjvrEH7w:xXl1aWgXuQa206/h0rEH7w

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/0x000a000000012254-1.dat	floxif

ACProtect 1.3x - 1.4x DLL software 1 IoCs

Detects file using ACProtect software.

resource	yara_rule
behavioral1/files/0x000a000000012254-1.dat	acprotect

Loads dropped DLL 1 IoCs

pid	Process
2376	5ee3b3e9b5f694b9c2e052f9d027d9fb505ab19f7be01b74f162be8cc3d3ef8aN.exe

UPX packed file 3 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2376-3-0x0000000010000000-0x0000000010030000-memory.dmp	upx
behavioral1/files/0x000a000000012254-1.dat	upx
behavioral1/memory/2376-7-0x0000000010000000-0x0000000010030000-memory.dmp	upx

Drops file in Program Files directory 1 IoCs

description	ioc	Process
File created	C:\Program Files\Common Files\System\symsrv.dll	5ee3b3e9b5f694b9c2e052f9d027d9fb505ab19f7be01b74f162be8cc3d3ef8aN.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	5ee3b3e9b5f694b9c2e052f9d027d9fb505ab19f7be01b74f162be8cc3d3ef8aN.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2376	5ee3b3e9b5f694b9c2e052f9d027d9fb505ab19f7be01b74f162be8cc3d3ef8aN.exe

C:\Users\Admin\AppData\Local\Temp\5ee3b3e9b5f694b9c2e052f9d027d9fb505ab19f7be01b74f162be8cc3d3ef8aN.exe
"C:\Users\Admin\AppData\Local\Temp\5ee3b3e9b5f694b9c2e052f9d027d9fb505ab19f7be01b74f162be8cc3d3ef8aN.exe"
1⤵
- Loads dropped DLL
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
PID:2376

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/2376-3-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download
memory/2376-7-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download
memory/2376-5-0x0000000000400000-0x0000000000468000-memory.dmp

Filesize
416KB

Download