floxif | 489b1311db3ec6df3ac54525f2fde77eb5685703374fe88882676676a0c50b2d

Analysis

max time kernel
149s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
16-12-2024 21:52

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General

Target

489b1311db3ec6df3ac54525f2fde77eb5685703374fe88882676676a0c50b2d.exe
Size

242KB
MD5

44845eb8c6725ac789eeb026c099f192
SHA1

804c15bf7cfcac9dc9d0acb82aaaceea72243f98
SHA256

489b1311db3ec6df3ac54525f2fde77eb5685703374fe88882676676a0c50b2d
SHA512

e3ef32ce4705e91e863f7d59ef3746c42c4b6420f9407a708bb61b3869e56ff9c8dd97618498978f1b608318075abe665c7044bf1f5d7178ddeffc973bc14076
SSDEEP

6144:wLwbXLFClSbrqsQvMRlkM4RD/qzMfUyL6:wMbbXQMRGM4h/qofn6

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/0x000a000000023bb0-1.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/0x000a000000023bb0-1.dat	acprotect

Loads dropped DLL 1 IoCs

pid	Process
4944	489b1311db3ec6df3ac54525f2fde77eb5685703374fe88882676676a0c50b2d.exe

Network Service Discovery 1 TTPs 1 IoCs

Attempt to gather information on host's network.

discovery

Network Service Discovery

T1046

pid	Process
3740	arp.exe

UPX packed file 3 IoCs

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

upx

resource	yara_rule
behavioral2/files/0x000a000000023bb0-1.dat	upx
behavioral2/memory/4944-4-0x0000000010000000-0x0000000010033000-memory.dmp	upx
behavioral2/memory/4944-8-0x0000000010000000-0x0000000010033000-memory.dmp	upx

Drops file in Program Files directory 1 IoCs

description	ioc	Process
File created	C:\Program Files\Common Files\System\symsrv.dll	489b1311db3ec6df3ac54525f2fde77eb5685703374fe88882676676a0c50b2d.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	489b1311db3ec6df3ac54525f2fde77eb5685703374fe88882676676a0c50b2d.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	arp.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4944	489b1311db3ec6df3ac54525f2fde77eb5685703374fe88882676676a0c50b2d.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4944 wrote to memory of 3740	4944	489b1311db3ec6df3ac54525f2fde77eb5685703374fe88882676676a0c50b2d.exe	85
PID 4944 wrote to memory of 3740	4944	489b1311db3ec6df3ac54525f2fde77eb5685703374fe88882676676a0c50b2d.exe	85
PID 4944 wrote to memory of 3740	4944	489b1311db3ec6df3ac54525f2fde77eb5685703374fe88882676676a0c50b2d.exe	85

C:\Users\Admin\AppData\Local\Temp\489b1311db3ec6df3ac54525f2fde77eb5685703374fe88882676676a0c50b2d.exe
"C:\Users\Admin\AppData\Local\Temp\489b1311db3ec6df3ac54525f2fde77eb5685703374fe88882676676a0c50b2d.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:4944
- C:\Windows\SysWOW64\arp.exe
  arp -a
  2⤵
  - Network Service Discovery
  - System Location Discovery: System Language Discovery
  PID:3740

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

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Downloads

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

Filesize
71KB

MD5
4fcd7574537cebec8e75b4e646996643

SHA1
efa59bb9050fb656b90d5d40c942fb2a304f2a8b

SHA256
8ea3b17e4b783ffc0bc387b81b823bf87af0d57da74541d88ba85314bb232a5d

SHA512
7f1a7ef64d332a735db82506b47d84853af870785066d29ccaf4fdeab114079a9f0db400e01ba574776a0d652a248658fe1e8f9659cdced19ad6eea09644ea3e

Download Submit
memory/4944-4-0x0000000010000000-0x0000000010033000-memory.dmp

Filesize
204KB

Download
memory/4944-8-0x0000000010000000-0x0000000010033000-memory.dmp

Filesize
204KB

Download
memory/4944-6-0x0000000000940000-0x000000000096A000-memory.dmp

Filesize
168KB

Download