floxif | 8cded506c1608a3f56fa0d4c8c269db5341a9b482ab9468eac9372ba8ae4f569

Analysis

max time kernel
95s
max time network
108s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
10/01/2025, 19:43

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General

Target

8cded506c1608a3f56fa0d4c8c269db5341a9b482ab9468eac9372ba8ae4f569N.dll
Size

1.7MB
MD5

757f6c5dd4e5f6aa5eefe638f3812b60
SHA1

b067881bfc1a346bc23d6a9cbf825145adfeea32
SHA256

8cded506c1608a3f56fa0d4c8c269db5341a9b482ab9468eac9372ba8ae4f569
SHA512

498a7dce2fa35a0d3cb0028a16ec6b8d6d437596fc774c98a7f48f66d6fbfd1c43a371b68c84e96d84427e3c721bc9df63cd1532f0770bbcac70d344f6377cc0
SSDEEP

24576:UHPcgkDwhpEPQzH/tX4hzRBiXJk3wbFJjTib7DllUD47SDXj/KOec5AmfQQRAH1F:UrylBcbybfOTvZAIVRkokHT9krrkQ1qT

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/0x000b000000023b9c-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/0x000b000000023b9c-1.dat	acprotect

Loads dropped DLL 1 IoCs

pid	Process
3152	rundll32.exe

Network Service Discovery 1 TTPs 1 IoCs

Attempt to gather information on host's network.

discovery

Network Service Discovery

T1046

pid	Process
980	arp.exe

UPX packed file 3 IoCs

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

upx

resource	yara_rule
behavioral2/memory/3152-4-0x0000000010000000-0x0000000010033000-memory.dmp	upx
behavioral2/files/0x000b000000023b9c-1.dat	upx
behavioral2/memory/3152-23-0x0000000010000000-0x0000000010033000-memory.dmp	upx

Drops file in Program Files directory 1 IoCs

description	ioc	Process
File created	C:\Program Files\Common Files\System\symsrv.dll	rundll32.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	rundll32.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	arp.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3152	rundll32.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 1260 wrote to memory of 3152	1260	rundll32.exe	82
PID 1260 wrote to memory of 3152	1260	rundll32.exe	82
PID 1260 wrote to memory of 3152	1260	rundll32.exe	82
PID 3152 wrote to memory of 980	3152	rundll32.exe	83
PID 3152 wrote to memory of 980	3152	rundll32.exe	83
PID 3152 wrote to memory of 980	3152	rundll32.exe	83

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\8cded506c1608a3f56fa0d4c8c269db5341a9b482ab9468eac9372ba8ae4f569N.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1260
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\8cded506c1608a3f56fa0d4c8c269db5341a9b482ab9468eac9372ba8ae4f569N.dll,#1
  2⤵
  - Loads dropped DLL
  - Drops file in Program Files directory
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:3152
- - C:\Windows\SysWOW64\arp.exe
    arp -a
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:980

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

Filesize
80B

MD5
094f39e469f6f6e8d7a545a39697ac9c

SHA1
ab8eec2a4066b8a42e7a7bb2cfb4682640d509c1

SHA256
95c89421c0a4bd72510698f21de5665da2d51a36edb602bc5fbb975e4251f1ba

SHA512
135ee4790431568a70db0c7088b498dcfbbb790cf8b1be4cbc99af0e251aa9bdbdd1006527bfade9989ed60a3f23eead9de53dabf5c2cd90574a0ea73a693dcb

Download Submit
memory/3152-4-0x0000000010000000-0x0000000010033000-memory.dmp

Filesize
204KB

Download
memory/3152-5-0x0000000075151000-0x0000000075152000-memory.dmp

Filesize
4KB

Download
memory/3152-23-0x0000000010000000-0x0000000010033000-memory.dmp

Filesize
204KB

Download