floxif | 3bfe840a370ab42eaa0aa083d2ad7eeedd36fad83f1129b127f68d3c9e4c9a12

Analysis

max time kernel
148s
max time network
153s
platform
windows10-2004_x64
resource
win10v2004-20240704-en
resource tags

arch:x64arch:x86image:win10v2004-20240704-enlocale:en-usos:windows10-2004-x64system
submitted
08/07/2024, 20:34

Target

03efdaf10905f8fad96cf07b32f93990N.dll
Size

121KB
MD5

03efdaf10905f8fad96cf07b32f93990
SHA1

fd38d231251a7694d3a4f1ff424bb9b2122c9099
SHA256

3bfe840a370ab42eaa0aa083d2ad7eeedd36fad83f1129b127f68d3c9e4c9a12
SHA512

c739e226b8791269d60f38e61db670f6ce7abb18a4cfc7ab2024160565211c938441bbf0a9dfeb8961db9aa398b6ec25b6aacab16882b8d39c58525c05850072
SSDEEP

3072:zUT0lrQwyHOS1Z5RUq2lQBV+UdE+rECWp7hKhtH:/ls3OS1ZrpBV+UdvrEFp7hKhtH

Score

10^/10

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/0x00070000000232be-1.dat	floxif

ACProtect 1.3x - 1.4x DLL software 1 IoCs

Detects file using ACProtect software.

resource	yara_rule
behavioral2/files/0x00070000000232be-1.dat	acprotect

Loads dropped DLL 1 IoCs

pid	Process
3036	regsvr32.exe

UPX packed file 3 IoCs

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

resource	yara_rule
behavioral2/files/0x00070000000232be-1.dat	upx
behavioral2/memory/3036-4-0x0000000010000000-0x0000000010030000-memory.dmp	upx
behavioral2/memory/3036-5-0x0000000010000000-0x0000000010030000-memory.dmp	upx

Drops file in Program Files directory 1 IoCs

description	ioc	Process
File created	C:\Program Files\Common Files\System\symsrv.dll	regsvr32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4884 wrote to memory of 3036	4884	regsvr32.exe	82
PID 4884 wrote to memory of 3036	4884	regsvr32.exe	82
PID 4884 wrote to memory of 3036	4884	regsvr32.exe	82

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\03efdaf10905f8fad96cf07b32f93990N.dll
1⤵
- Suspicious use of WriteProcessMemory
PID:4884
- C:\Windows\SysWOW64\regsvr32.exe
  /s C:\Users\Admin\AppData\Local\Temp\03efdaf10905f8fad96cf07b32f93990N.dll
  2⤵
  - Loads dropped DLL
  - Drops file in Program Files directory
  PID:3036

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

Filesize
67KB

MD5
7574cf2c64f35161ab1292e2f532aabf

SHA1
14ba3fa927a06224dfe587014299e834def4644f

SHA256
de055a89de246e629a8694bde18af2b1605e4b9b493c7e4aef669dd67acf5085

SHA512
4db19f2d8d5bc1c7bbb812d3fa9c43b80fa22140b346d2760f090b73aed8a5177edb4bddc647a6ebd5a2db8565be5a1a36a602b0d759e38540d9a584ba5896ab

Download Submit
memory/3036-4-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download
memory/3036-5-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download