floxif | 17411e3b2f32a0b35e120c8feae7dd3954afd0dcfe09197f1e022a2944ad7f81

Analysis

max time kernel
95s
max time network
97s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
17-12-2024 00:58

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

17411e3b2f32a0b35e120c8feae7dd3954afd0dcfe09197f1e022a2944ad7f81N.exe
Size

242KB
MD5

389f3ad24b3c4cc40927c7a40f6ddae0
SHA1

919d690d2fc00b18cbbd5043b29c3a8979f3845d
SHA256

17411e3b2f32a0b35e120c8feae7dd3954afd0dcfe09197f1e022a2944ad7f81
SHA512

742029536f35f77164c9af94af07f1f92fdc2a864576866d7d9b15e86527b17bf60fc7868643f1fe89bfca23744e5472a43842e05b2c31607f313b0bc1da5663
SSDEEP

6144:LLUD3zFClSbrqsQvMRlkM4RD/qzMfUiIF:LobzXQMRGM4h/qof+

Score

10^/10

floxif backdoor discovery persistence privilege_escalation 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/0x0009000000023c57-1.dat	floxif

Event Triggered Execution: AppInit DLLs 1 TTPs
Adversaries may establish persistence and/or elevate privileges by executing malicious content triggered by AppInit DLLs loaded into processes.
persistence privilege_escalation

AppInit DLLs
T1546.010

ACProtect 1.3x - 1.4x DLL software 1 IoCs

Detects file using ACProtect software.

resource	yara_rule
behavioral2/files/0x0009000000023c57-1.dat	acprotect

Loads dropped DLL 1 IoCs

pid	Process
4280	17411e3b2f32a0b35e120c8feae7dd3954afd0dcfe09197f1e022a2944ad7f81N.exe

Network Service Discovery 1 TTPs 1 IoCs

Attempt to gather information on host's network.

discovery

Network Service Discovery

T1046

pid	Process
4352	arp.exe

UPX packed file 3 IoCs

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

upx

resource	yara_rule
behavioral2/memory/4280-4-0x0000000010000000-0x0000000010033000-memory.dmp	upx
behavioral2/files/0x0009000000023c57-1.dat	upx
behavioral2/memory/4280-8-0x0000000010000000-0x0000000010033000-memory.dmp	upx

Drops file in Program Files directory 1 IoCs

description	ioc	Process
File created	C:\Program Files\Common Files\System\symsrv.dll	17411e3b2f32a0b35e120c8feae7dd3954afd0dcfe09197f1e022a2944ad7f81N.exe

System Location Discovery: System Language Discovery 1 TTPs 2 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	17411e3b2f32a0b35e120c8feae7dd3954afd0dcfe09197f1e022a2944ad7f81N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	arp.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4280	17411e3b2f32a0b35e120c8feae7dd3954afd0dcfe09197f1e022a2944ad7f81N.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4280 wrote to memory of 4352	4280	17411e3b2f32a0b35e120c8feae7dd3954afd0dcfe09197f1e022a2944ad7f81N.exe	83
PID 4280 wrote to memory of 4352	4280	17411e3b2f32a0b35e120c8feae7dd3954afd0dcfe09197f1e022a2944ad7f81N.exe	83
PID 4280 wrote to memory of 4352	4280	17411e3b2f32a0b35e120c8feae7dd3954afd0dcfe09197f1e022a2944ad7f81N.exe	83

C:\Users\Admin\AppData\Local\Temp\17411e3b2f32a0b35e120c8feae7dd3954afd0dcfe09197f1e022a2944ad7f81N.exe
"C:\Users\Admin\AppData\Local\Temp\17411e3b2f32a0b35e120c8feae7dd3954afd0dcfe09197f1e022a2944ad7f81N.exe"
1⤵
- Loads dropped DLL
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4280
- C:\Windows\SysWOW64\arp.exe
  arp -a
  2⤵
  - Network Service Discovery
  - System Location Discovery: System Language Discovery
  PID:4352

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Event Triggered Execution

T1546

AppInit DLLs

T1546.010

Privilege Escalation

Event Triggered Execution

T1546

AppInit DLLs

T1546.010

Defense Evasion

Credential Access

Discovery

Network Service Discovery

T1046

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Program Files\Common Files\System\symsrv.dll

Filesize
71KB

MD5
4fcd7574537cebec8e75b4e646996643

SHA1
efa59bb9050fb656b90d5d40c942fb2a304f2a8b

SHA256
8ea3b17e4b783ffc0bc387b81b823bf87af0d57da74541d88ba85314bb232a5d

SHA512
7f1a7ef64d332a735db82506b47d84853af870785066d29ccaf4fdeab114079a9f0db400e01ba574776a0d652a248658fe1e8f9659cdced19ad6eea09644ea3e

Download Submit
memory/4280-4-0x0000000010000000-0x0000000010033000-memory.dmp

Filesize
204KB

Download
memory/4280-8-0x0000000010000000-0x0000000010033000-memory.dmp

Filesize
204KB

Download
memory/4280-6-0x0000000000C10000-0x0000000000C3A000-memory.dmp

Filesize
168KB

Download