floxif | 0b4ed4250872acb0dec5fda8c040f14525b47ebf6b8883f6e3d7a5102b3bca4e

Analysis

max time kernel
94s
max time network
95s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
25-12-2024 19:39

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

0b4ed4250872acb0dec5fda8c040f14525b47ebf6b8883f6e3d7a5102b3bca4eN.exe
Size

561KB
MD5

f32fe95b967c41a26b99d0b8282d0e20
SHA1

e91dcec8df5d37beb43a9472076ad211cf915b34
SHA256

0b4ed4250872acb0dec5fda8c040f14525b47ebf6b8883f6e3d7a5102b3bca4e
SHA512

80195e6ff56bf72fbc5383c6ce8e803f4e200153ebdfde65d0b95220b4158b9bcba3d4f7c9b16231848ca6301a3ef07720a3658d67a16bc9723cb94192bf8688
SSDEEP

6144:HlEUXKFP6VyJGC6TqNCUcLS8aBV+UdvrEFp7hKkt1DYy:HlEN6YJYTq1zVBjvrEH7Tn3

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/0x000c000000023b1b-1.dat	floxif

ACProtect 1.3x - 1.4x DLL software 1 IoCs

Detects file using ACProtect software.

resource	yara_rule
behavioral2/files/0x000c000000023b1b-1.dat	acprotect

Loads dropped DLL 1 IoCs

pid	Process
4740	0b4ed4250872acb0dec5fda8c040f14525b47ebf6b8883f6e3d7a5102b3bca4eN.exe

UPX packed file 3 IoCs

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

upx

resource	yara_rule
behavioral2/files/0x000c000000023b1b-1.dat	upx
behavioral2/memory/4740-4-0x0000000010000000-0x0000000010030000-memory.dmp	upx
behavioral2/memory/4740-8-0x0000000010000000-0x0000000010030000-memory.dmp	upx

Drops file in Program Files directory 1 IoCs

description	ioc	Process
File created	C:\Program Files\Common Files\System\symsrv.dll	0b4ed4250872acb0dec5fda8c040f14525b47ebf6b8883f6e3d7a5102b3bca4eN.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
1792	4740	WerFault.exe	81

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	0b4ed4250872acb0dec5fda8c040f14525b47ebf6b8883f6e3d7a5102b3bca4eN.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4740	0b4ed4250872acb0dec5fda8c040f14525b47ebf6b8883f6e3d7a5102b3bca4eN.exe

C:\Users\Admin\AppData\Local\Temp\0b4ed4250872acb0dec5fda8c040f14525b47ebf6b8883f6e3d7a5102b3bca4eN.exe
"C:\Users\Admin\AppData\Local\Temp\0b4ed4250872acb0dec5fda8c040f14525b47ebf6b8883f6e3d7a5102b3bca4eN.exe"
1⤵
- Loads dropped DLL
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
PID:4740
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4740 -s 560
  2⤵
  - Program crash
  PID:1792

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 448 -p 4740 -ip 4740
1⤵
PID:2700

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
memory/4740-4-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download
memory/4740-8-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download
memory/4740-6-0x0000000000750000-0x0000000000961000-memory.dmp

Filesize
2.1MB

Download