floxif | 7b1f798519155807b2d7716b3402cb51ca4c6c6435857c5d7aa6c53e9c59641f

Analysis

max time kernel
95s
max time network
96s
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 07:35

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

7b1f798519155807b2d7716b3402cb51ca4c6c6435857c5d7aa6c53e9c59641fN.exe
Size

3.2MB
MD5

5b3f7c8a56989cdee73bc1547a7a91b0
SHA1

c2080579a1b09994ce3f8bce14e97dc21c12e3d9
SHA256

7b1f798519155807b2d7716b3402cb51ca4c6c6435857c5d7aa6c53e9c59641f
SHA512

5ca05535256aab9a730f7686940a22b536e7f2561ca1048f115d84a956206a740ae9f683f92f253832245bc2e81c8adc89789e15292611614b9989645de3581b
SSDEEP

49152:2KT5razB15YsBNMqxs9j7GvQDf536Ubmezbj2PSWMNXoqnbtuNPBtpCW1zMm:2KMHXADyPSWMNXoHPBtMW2m

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/0x000b000000023bc3-1.dat	floxif

ACProtect 1.3x - 1.4x DLL software 1 IoCs

Detects file using ACProtect software.

resource	yara_rule
behavioral2/files/0x000b000000023bc3-1.dat	acprotect

Loads dropped DLL 1 IoCs

pid	Process
2288	7b1f798519155807b2d7716b3402cb51ca4c6c6435857c5d7aa6c53e9c59641fN.exe

UPX packed file 3 IoCs

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

upx

resource	yara_rule
behavioral2/memory/2288-4-0x0000000010000000-0x0000000010030000-memory.dmp	upx
behavioral2/files/0x000b000000023bc3-1.dat	upx
behavioral2/memory/2288-14-0x0000000010000000-0x0000000010030000-memory.dmp	upx

Drops file in Program Files directory 1 IoCs

description	ioc	Process
File created	C:\Program Files\Common Files\System\symsrv.dll	7b1f798519155807b2d7716b3402cb51ca4c6c6435857c5d7aa6c53e9c59641fN.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	7b1f798519155807b2d7716b3402cb51ca4c6c6435857c5d7aa6c53e9c59641fN.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2288	7b1f798519155807b2d7716b3402cb51ca4c6c6435857c5d7aa6c53e9c59641fN.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2288	7b1f798519155807b2d7716b3402cb51ca4c6c6435857c5d7aa6c53e9c59641fN.exe

C:\Users\Admin\AppData\Local\Temp\7b1f798519155807b2d7716b3402cb51ca4c6c6435857c5d7aa6c53e9c59641fN.exe
"C:\Users\Admin\AppData\Local\Temp\7b1f798519155807b2d7716b3402cb51ca4c6c6435857c5d7aa6c53e9c59641fN.exe"
1⤵
- Loads dropped DLL
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
PID:2288

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

Loading Replay Monitor...

Downloads

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

Filesize
67KB

MD5
7574cf2c64f35161ab1292e2f532aabf

SHA1
14ba3fa927a06224dfe587014299e834def4644f

SHA256
de055a89de246e629a8694bde18af2b1605e4b9b493c7e4aef669dd67acf5085

SHA512
4db19f2d8d5bc1c7bbb812d3fa9c43b80fa22140b346d2760f090b73aed8a5177edb4bddc647a6ebd5a2db8565be5a1a36a602b0d759e38540d9a584ba5896ab

Download Submit
C:\Users\Admin\AppData\Local\Temp\v3restore.log

Filesize
711B

MD5
ceed4c76efaf0a886be30436ab573927

SHA1
a311f20739776e93a249150112e9a1dbdd7ec48d

SHA256
d1f8c7432781a3bae235ffcd69795e05c9c91fcb23921be6c5959d6c50de248f

SHA512
5ee27d6f6d7410c0252c1aa0c93faf478beef84ac2e823251badd06f2466d290604a81620486d95300618d2f85d20cc07214c976973dbae2bfb08e533a9faab9

Download Submit
memory/2288-4-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download
memory/2288-14-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download