floxif | da2481397f18695c0b9251e607e589a274252dc30ae04e56d13d35f14f227952

Analysis

max time kernel
93s
max time network
148s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
12-12-2024 03:38

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

da2481397f18695c0b9251e607e589a274252dc30ae04e56d13d35f14f227952.exe
Size

3.1MB
MD5

95e1ad618b5b364bf4b125a77f4c397d
SHA1

5812ea66e1ca2131d585704c9f1b9b256af997b2
SHA256

da2481397f18695c0b9251e607e589a274252dc30ae04e56d13d35f14f227952
SHA512

a895fd6090694a3298f964e6ff204dc92de6b898b0534ebbccb7083119631ec2d4a18505a5261199bd9f006c3100a9eca2e1ec098299a8a2fd86d4338775bc26
SSDEEP

49152:85BTq9iiUEnz3l3iHlIRQXhLVDXEjTWNANwss3U1qOr:uB29V3lE6R8hLVD0YzUUI

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/0x000c000000023b4c-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/0x000c000000023b4c-1.dat	acprotect

Loads dropped DLL 1 IoCs

pid	Process
1772	da2481397f18695c0b9251e607e589a274252dc30ae04e56d13d35f14f227952.exe

Network Service Discovery 1 TTPs 9 IoCs

Attempt to gather information on host's network.

discovery

Network Service Discovery

T1046

pid	Process
1820	arp.exe
2104	arp.exe
2720	arp.exe
2968	arp.exe
3436	arp.exe
940	arp.exe
4888	arp.exe
4488	arp.exe
4552	arp.exe

UPX packed file 3 IoCs

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

upx

resource	yara_rule
behavioral2/files/0x000c000000023b4c-1.dat	upx
behavioral2/memory/1772-4-0x0000000010000000-0x0000000010033000-memory.dmp	upx
behavioral2/memory/1772-24-0x0000000010000000-0x0000000010033000-memory.dmp	upx

Drops file in Program Files directory 1 IoCs

description	ioc	Process
File created	C:\Program Files\Common Files\System\symsrv.dll	da2481397f18695c0b9251e607e589a274252dc30ae04e56d13d35f14f227952.exe

System Location Discovery: System Language Discovery 1 TTPs 10 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	arp.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	arp.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	arp.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	arp.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	arp.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	arp.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	arp.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	arp.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	arp.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	da2481397f18695c0b9251e607e589a274252dc30ae04e56d13d35f14f227952.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1772	da2481397f18695c0b9251e607e589a274252dc30ae04e56d13d35f14f227952.exe

Suspicious use of WriteProcessMemory 27 IoCs

description	pid	Process	procid_target
PID 1772 wrote to memory of 940	1772	da2481397f18695c0b9251e607e589a274252dc30ae04e56d13d35f14f227952.exe	82
PID 1772 wrote to memory of 940	1772	da2481397f18695c0b9251e607e589a274252dc30ae04e56d13d35f14f227952.exe	82
PID 1772 wrote to memory of 940	1772	da2481397f18695c0b9251e607e589a274252dc30ae04e56d13d35f14f227952.exe	82
PID 1772 wrote to memory of 4552	1772	da2481397f18695c0b9251e607e589a274252dc30ae04e56d13d35f14f227952.exe	84
PID 1772 wrote to memory of 4552	1772	da2481397f18695c0b9251e607e589a274252dc30ae04e56d13d35f14f227952.exe	84
PID 1772 wrote to memory of 4552	1772	da2481397f18695c0b9251e607e589a274252dc30ae04e56d13d35f14f227952.exe	84
PID 1772 wrote to memory of 3436	1772	da2481397f18695c0b9251e607e589a274252dc30ae04e56d13d35f14f227952.exe	85
PID 1772 wrote to memory of 3436	1772	da2481397f18695c0b9251e607e589a274252dc30ae04e56d13d35f14f227952.exe	85
PID 1772 wrote to memory of 3436	1772	da2481397f18695c0b9251e607e589a274252dc30ae04e56d13d35f14f227952.exe	85
PID 1772 wrote to memory of 4488	1772	da2481397f18695c0b9251e607e589a274252dc30ae04e56d13d35f14f227952.exe	86
PID 1772 wrote to memory of 4488	1772	da2481397f18695c0b9251e607e589a274252dc30ae04e56d13d35f14f227952.exe	86
PID 1772 wrote to memory of 4488	1772	da2481397f18695c0b9251e607e589a274252dc30ae04e56d13d35f14f227952.exe	86
PID 1772 wrote to memory of 2968	1772	da2481397f18695c0b9251e607e589a274252dc30ae04e56d13d35f14f227952.exe	87
PID 1772 wrote to memory of 2968	1772	da2481397f18695c0b9251e607e589a274252dc30ae04e56d13d35f14f227952.exe	87
PID 1772 wrote to memory of 2968	1772	da2481397f18695c0b9251e607e589a274252dc30ae04e56d13d35f14f227952.exe	87
PID 1772 wrote to memory of 2720	1772	da2481397f18695c0b9251e607e589a274252dc30ae04e56d13d35f14f227952.exe	88
PID 1772 wrote to memory of 2720	1772	da2481397f18695c0b9251e607e589a274252dc30ae04e56d13d35f14f227952.exe	88
PID 1772 wrote to memory of 2720	1772	da2481397f18695c0b9251e607e589a274252dc30ae04e56d13d35f14f227952.exe	88
PID 1772 wrote to memory of 2104	1772	da2481397f18695c0b9251e607e589a274252dc30ae04e56d13d35f14f227952.exe	89
PID 1772 wrote to memory of 2104	1772	da2481397f18695c0b9251e607e589a274252dc30ae04e56d13d35f14f227952.exe	89
PID 1772 wrote to memory of 2104	1772	da2481397f18695c0b9251e607e589a274252dc30ae04e56d13d35f14f227952.exe	89
PID 1772 wrote to memory of 4888	1772	da2481397f18695c0b9251e607e589a274252dc30ae04e56d13d35f14f227952.exe	90
PID 1772 wrote to memory of 4888	1772	da2481397f18695c0b9251e607e589a274252dc30ae04e56d13d35f14f227952.exe	90
PID 1772 wrote to memory of 4888	1772	da2481397f18695c0b9251e607e589a274252dc30ae04e56d13d35f14f227952.exe	90
PID 1772 wrote to memory of 1820	1772	da2481397f18695c0b9251e607e589a274252dc30ae04e56d13d35f14f227952.exe	91
PID 1772 wrote to memory of 1820	1772	da2481397f18695c0b9251e607e589a274252dc30ae04e56d13d35f14f227952.exe	91
PID 1772 wrote to memory of 1820	1772	da2481397f18695c0b9251e607e589a274252dc30ae04e56d13d35f14f227952.exe	91

C:\Users\Admin\AppData\Local\Temp\da2481397f18695c0b9251e607e589a274252dc30ae04e56d13d35f14f227952.exe
"C:\Users\Admin\AppData\Local\Temp\da2481397f18695c0b9251e607e589a274252dc30ae04e56d13d35f14f227952.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:1772
- C:\Windows\SysWOW64\arp.exe
  arp -a
  2⤵
  - Network Service Discovery
  - System Location Discovery: System Language Discovery
  PID:940
- C:\Windows\SysWOW64\arp.exe
  arp -s 10.127.0.1 3d-e6-b8-e9-88-30
  2⤵
  - Network Service Discovery
  - System Location Discovery: System Language Discovery
  PID:4552
- C:\Windows\SysWOW64\arp.exe
  arp -s 10.127.255.255 14-74-4c-3a-f7-84
  2⤵
  - Network Service Discovery
  - System Location Discovery: System Language Discovery
  PID:3436
- C:\Windows\SysWOW64\arp.exe
  arp -s 49.12.169.207 cd-61-4e-fe-b8-5c
  2⤵
  - Network Service Discovery
  - System Location Discovery: System Language Discovery
  PID:4488
- C:\Windows\SysWOW64\arp.exe
  arp -s 224.0.0.22 f1-06-59-8c-7f-8b
  2⤵
  - Network Service Discovery
  - System Location Discovery: System Language Discovery
  PID:2968
- C:\Windows\SysWOW64\arp.exe
  arp -s 224.0.0.251 72-85-72-86-19-cc
  2⤵
  - Network Service Discovery
  - System Location Discovery: System Language Discovery
  PID:2720
- C:\Windows\SysWOW64\arp.exe
  arp -s 224.0.0.252 ad-50-61-93-ab-2d
  2⤵
  - Network Service Discovery
  - System Location Discovery: System Language Discovery
  PID:2104
- C:\Windows\SysWOW64\arp.exe
  arp -s 239.255.255.250 7c-46-cd-d7-b5-8d
  2⤵
  - Network Service Discovery
  - System Location Discovery: System Language Discovery
  PID:4888
- C:\Windows\SysWOW64\arp.exe
  arp -s 255.255.255.255 ac-bf-bb-9a-b2-e7
  2⤵
  - Network Service Discovery
  - System Location Discovery: System Language Discovery
  PID:1820

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
C:\Users\Admin\AppData\LocalLow\SogouPY.users\acc.dat.wtm

Filesize
80B

MD5
a25780fc24febf10170ce96dcc046bb1

SHA1
9c8ffcaefe2d1ebd742f23c10a856f5d6df01972

SHA256
1d197b9424cc7e3d23b245dac02cefe33721fff230699c9b64ea5f47b167e011

SHA512
13ce53bd733dce1dd399163747547ee722164100a70615bbaf43e8c1273c086e8c5ca85b6e6f3f3761b4cf931ea0f9b41257055b325a5e09b76f786b82eb07a4

Download Submit
memory/1772-4-0x0000000010000000-0x0000000010033000-memory.dmp

Filesize
204KB

Download
memory/1772-6-0x0000000000BD1000-0x0000000000BD2000-memory.dmp

Filesize
4KB

Download
memory/1772-24-0x0000000010000000-0x0000000010033000-memory.dmp

Filesize
204KB

Download
memory/1772-22-0x0000000000BD0000-0x0000000000EEC000-memory.dmp

Filesize
3.1MB

Download