floxif | 265e49d2c30e9aa0e5aa243125a0a36db33a2acc6b36090633f0fa74650b44bc

Analysis

max time kernel
101s
max time network
104s
platform
windows10-2004_x64
resource
win10v2004-20240704-en
resource tags

arch:x64arch:x86image:win10v2004-20240704-enlocale:en-usos:windows10-2004-x64system
submitted
15/07/2024, 04:50

Target

85308776bca1ae751dd531a064940b90N.dll
Size

121KB
MD5

85308776bca1ae751dd531a064940b90
SHA1

904ea3be3b65d131187186b324ca15e6092520d6
SHA256

265e49d2c30e9aa0e5aa243125a0a36db33a2acc6b36090633f0fa74650b44bc
SHA512

297e59287da505422168527bafb75c59c7f22a5d8fa3a2c3c3be3290647be8668032312fc0296bd7689b1c54b332a1ead10ed7f21ef356fdd60a117936c9a171
SSDEEP

3072:zUT0lrrkyHOS1Z5RUq2lQBV+UdE+rECWp7hK/tX:/lnjOS1ZrpBV+UdvrEFp7hK/tX

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/0x000700000002325a-1.dat	floxif

ACProtect 1.3x - 1.4x DLL software 1 IoCs

Detects file using ACProtect software.

resource	yara_rule
behavioral2/files/0x000700000002325a-1.dat	acprotect

Loads dropped DLL 1 IoCs

pid	Process
2400	regsvr32.exe

UPX packed file 2 IoCs

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

resource	yara_rule
behavioral2/files/0x000700000002325a-1.dat	upx
behavioral2/memory/2400-5-0x0000000010000000-0x0000000010030000-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 3688 wrote to memory of 2400	3688	regsvr32.exe	83
PID 3688 wrote to memory of 2400	3688	regsvr32.exe	83
PID 3688 wrote to memory of 2400	3688	regsvr32.exe	83

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\85308776bca1ae751dd531a064940b90N.dll
1⤵
- Suspicious use of WriteProcessMemory
PID:3688
- C:\Windows\SysWOW64\regsvr32.exe
  /s C:\Users\Admin\AppData\Local\Temp\85308776bca1ae751dd531a064940b90N.dll
  2⤵
  - Loads dropped DLL
  - Drops file in Program Files directory
  PID:2400

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

Filesize
67KB

MD5
7574cf2c64f35161ab1292e2f532aabf

SHA1
14ba3fa927a06224dfe587014299e834def4644f

SHA256
de055a89de246e629a8694bde18af2b1605e4b9b493c7e4aef669dd67acf5085

SHA512
4db19f2d8d5bc1c7bbb812d3fa9c43b80fa22140b346d2760f090b73aed8a5177edb4bddc647a6ebd5a2db8565be5a1a36a602b0d759e38540d9a584ba5896ab

Download Submit
memory/2400-5-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download
memory/2400-6-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download