floxif | bf784cfa8dc38e6dec572a243c6f339382606e111c21862dc6a290597156344b

Analysis

max time kernel
93s
max time network
140s
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 07:14

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General

Target

bf784cfa8dc38e6dec572a243c6f339382606e111c21862dc6a290597156344b.exe
Size

286KB
MD5

fa124ccfca56009bd66477f78d5706b4
SHA1

b089863eae6519ab084c2277516e179492363f30
SHA256

bf784cfa8dc38e6dec572a243c6f339382606e111c21862dc6a290597156344b
SHA512

9e0b5a65e1f43b92c400b550902ae53729eb134a104e84fc7062a6cea8d5206ce8c392bc03d6a1fac8cb89a4f2c30d93ff7c9d23da078e1dffb0710b3c370804
SSDEEP

6144:w7gKNkhSR/khuyXnZhB+h8WHlBV+UdvrEFp7hK+:w7gKNkhm/khuyXnPB+h8WHlBjvrEH7d

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/0x000c000000023bba-1.dat	floxif

ACProtect 1.3x - 1.4x DLL software 1 IoCs

Detects file using ACProtect software.

resource	yara_rule
behavioral2/files/0x000c000000023bba-1.dat	acprotect

Loads dropped DLL 1 IoCs

pid	Process
2308	bf784cfa8dc38e6dec572a243c6f339382606e111c21862dc6a290597156344b.exe

UPX packed file 3 IoCs

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

upx

resource	yara_rule
behavioral2/files/0x000c000000023bba-1.dat	upx
behavioral2/memory/2308-2-0x0000000010000000-0x0000000010030000-memory.dmp	upx
behavioral2/memory/2308-7-0x0000000010000000-0x0000000010030000-memory.dmp	upx

Drops file in Program Files directory 1 IoCs

description	ioc	Process
File created	C:\Program Files\Common Files\System\symsrv.dll	bf784cfa8dc38e6dec572a243c6f339382606e111c21862dc6a290597156344b.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	bf784cfa8dc38e6dec572a243c6f339382606e111c21862dc6a290597156344b.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2308	bf784cfa8dc38e6dec572a243c6f339382606e111c21862dc6a290597156344b.exe

C:\Users\Admin\AppData\Local\Temp\bf784cfa8dc38e6dec572a243c6f339382606e111c21862dc6a290597156344b.exe
"C:\Users\Admin\AppData\Local\Temp\bf784cfa8dc38e6dec572a243c6f339382606e111c21862dc6a290597156344b.exe"
1⤵
- Loads dropped DLL
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
PID:2308

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/2308-2-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download
memory/2308-5-0x0000000000420000-0x0000000000457000-memory.dmp

Filesize
220KB

Download
memory/2308-7-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download