floxif | 66c4d3a5ba25d4a7a78e4a4d3b8954424e75b34b86e59d72818191ba2ed3498c

Analysis

max time kernel
94s
max time network
99s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
01-01-2025 15:41

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General

Target

66c4d3a5ba25d4a7a78e4a4d3b8954424e75b34b86e59d72818191ba2ed3498cN.exe
Size

295KB
MD5

087a2b9a7b444a14152f263b11725340
SHA1

3992b4a9a36b5adcc46835e63f01eaae2fd8ae3b
SHA256

66c4d3a5ba25d4a7a78e4a4d3b8954424e75b34b86e59d72818191ba2ed3498c
SHA512

4c65ac15036f4c4112af29b1c2e5dd217e0b15c01b7c6a31162956ec6dc2a2685239a838a89a183dd28c67066ea3b35edda6dc6f03a445e37105f581900fa98e
SSDEEP

6144:/txO9ipWU2u0I3yVB+ARMhI5FBV+UdvrEFp7hKU:/txO9ipWU2u0I3eB+ARMhIDBjvrEH7b

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/0x0008000000023c94-1.dat	floxif

ACProtect 1.3x - 1.4x DLL software 1 IoCs

Detects file using ACProtect software.

resource	yara_rule
behavioral2/files/0x0008000000023c94-1.dat	acprotect

Loads dropped DLL 1 IoCs

pid	Process
2820	66c4d3a5ba25d4a7a78e4a4d3b8954424e75b34b86e59d72818191ba2ed3498cN.exe

UPX packed file 3 IoCs

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

upx

resource	yara_rule
behavioral2/files/0x0008000000023c94-1.dat	upx
behavioral2/memory/2820-2-0x0000000010000000-0x0000000010030000-memory.dmp	upx
behavioral2/memory/2820-7-0x0000000010000000-0x0000000010030000-memory.dmp	upx

Drops file in Program Files directory 1 IoCs

description	ioc	Process
File created	C:\Program Files\Common Files\System\symsrv.dll	66c4d3a5ba25d4a7a78e4a4d3b8954424e75b34b86e59d72818191ba2ed3498cN.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	66c4d3a5ba25d4a7a78e4a4d3b8954424e75b34b86e59d72818191ba2ed3498cN.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2820	66c4d3a5ba25d4a7a78e4a4d3b8954424e75b34b86e59d72818191ba2ed3498cN.exe

C:\Users\Admin\AppData\Local\Temp\66c4d3a5ba25d4a7a78e4a4d3b8954424e75b34b86e59d72818191ba2ed3498cN.exe
"C:\Users\Admin\AppData\Local\Temp\66c4d3a5ba25d4a7a78e4a4d3b8954424e75b34b86e59d72818191ba2ed3498cN.exe"
1⤵
- Loads dropped DLL
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
PID:2820

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/2820-2-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download
memory/2820-5-0x00000000003D0000-0x0000000000408000-memory.dmp

Filesize
224KB

Download
memory/2820-7-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download