floxif | bf5acdcde970d6063acf23076baa3c60fb61540c407ee7c8b1d4072b5d0fcb43

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
22-11-2024 03:47

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General

Target

bf5acdcde970d6063acf23076baa3c60fb61540c407ee7c8b1d4072b5d0fcb43.exe
Size

364KB
MD5

b320207e431ee37c63c17cf674c37a43
SHA1

275b0b33722d9a99a2b7457994bdfa61f78eb2a6
SHA256

bf5acdcde970d6063acf23076baa3c60fb61540c407ee7c8b1d4072b5d0fcb43
SHA512

e07043d69ae57ab0f5759f1280aec9b259963df9a24ff09a06a5be7f4f6bb2236d5a9786d5eaff78336829e10056963db48ad0ae473bb5aa3ea89ebda15ad049
SSDEEP

6144:i++3nuxJN633a+4QWA4HYcOY/Q/YgvaUAAO1g2tYeBV+UdvrEFp7hKaa:iVnuTN633aqDc9SAeeBjvrEH7/a

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/0x000a000000023bcd-1.dat	floxif

ACProtect 1.3x - 1.4x DLL software 1 IoCs

Detects file using ACProtect software.

resource	yara_rule
behavioral2/files/0x000a000000023bcd-1.dat	acprotect

Loads dropped DLL 1 IoCs

pid	Process
3640	bf5acdcde970d6063acf23076baa3c60fb61540c407ee7c8b1d4072b5d0fcb43.exe

UPX packed file 3 IoCs

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

upx

resource	yara_rule
behavioral2/files/0x000a000000023bcd-1.dat	upx
behavioral2/memory/3640-2-0x0000000010000000-0x0000000010030000-memory.dmp	upx
behavioral2/memory/3640-8-0x0000000010000000-0x0000000010030000-memory.dmp	upx

Drops file in Program Files directory 1 IoCs

description	ioc	Process
File created	C:\Program Files\Common Files\System\symsrv.dll	bf5acdcde970d6063acf23076baa3c60fb61540c407ee7c8b1d4072b5d0fcb43.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	bf5acdcde970d6063acf23076baa3c60fb61540c407ee7c8b1d4072b5d0fcb43.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3640	bf5acdcde970d6063acf23076baa3c60fb61540c407ee7c8b1d4072b5d0fcb43.exe

C:\Users\Admin\AppData\Local\Temp\bf5acdcde970d6063acf23076baa3c60fb61540c407ee7c8b1d4072b5d0fcb43.exe
"C:\Users\Admin\AppData\Local\Temp\bf5acdcde970d6063acf23076baa3c60fb61540c407ee7c8b1d4072b5d0fcb43.exe"
1⤵
- Loads dropped DLL
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
PID:3640

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

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Downloads

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

Filesize
67KB

MD5
7574cf2c64f35161ab1292e2f532aabf

SHA1
14ba3fa927a06224dfe587014299e834def4644f

SHA256
de055a89de246e629a8694bde18af2b1605e4b9b493c7e4aef669dd67acf5085

SHA512
4db19f2d8d5bc1c7bbb812d3fa9c43b80fa22140b346d2760f090b73aed8a5177edb4bddc647a6ebd5a2db8565be5a1a36a602b0d759e38540d9a584ba5896ab

Download Submit
memory/3640-2-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download
memory/3640-5-0x0000000000171000-0x0000000000172000-memory.dmp

Filesize
4KB

Download
memory/3640-6-0x0000000000170000-0x00000000001BB000-memory.dmp

Filesize
300KB

Download
memory/3640-8-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download