floxif | df5111141778cc4c5e1a8af64d4660fd13225302e18fedfd4cec2616775a3195

Analysis

max time kernel
141s
max time network
19s
platform
windows7_x64
resource
win7-20240704-en
resource tags

arch:x64arch:x86image:win7-20240704-enlocale:en-usos:windows7-x64system
submitted
08/07/2024, 05:20

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

df5111141778cc4c5e1a8af64d4660fd13225302e18fedfd4cec2616775a3195.dll
Size

512KB
MD5

d35ef4ce0784affd73f20a293380fd39
SHA1

8b5431f226bea41850b1076b4c2f586223ce0df7
SHA256

df5111141778cc4c5e1a8af64d4660fd13225302e18fedfd4cec2616775a3195
SHA512

9adc618835e540289da7aa2f5f49436a11b265c06c1fabda9eb0f3fd34d4eb7886b3b0ab5d9e7618f3f8a709c2a3c7d8b202a92680b166e589ee1869aa4bcc22
SSDEEP

12288:wN0h4iFKz/L7ROh+rL1YkCKipaq1BYbJllBjvrEH7Y:wNHiFKz/L7R36kmaaKzrEH7Y

Score

10^/10

floxif backdoor trojan upx

Malware Config

Signatures

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
behavioral1/files/0x000900000001227c-1.dat	floxif

ACProtect 1.3x - 1.4x DLL software 1 IoCs

Detects file using ACProtect software.

resource	yara_rule
behavioral1/files/0x000900000001227c-1.dat	acprotect

Loads dropped DLL 1 IoCs

pid	Process
612	rundll32.exe

UPX packed file 3 IoCs

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

upx

resource	yara_rule
behavioral1/files/0x000900000001227c-1.dat	upx
behavioral1/memory/612-3-0x0000000010000000-0x0000000010030000-memory.dmp	upx
behavioral1/memory/612-5-0x0000000010000000-0x0000000010030000-memory.dmp	upx

Drops file in Program Files directory 1 IoCs

description	ioc	Process
File created	C:\Program Files\Common Files\System\symsrv.dll	rundll32.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	612	rundll32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2432 wrote to memory of 612	2432	rundll32.exe	29
PID 2432 wrote to memory of 612	2432	rundll32.exe	29
PID 2432 wrote to memory of 612	2432	rundll32.exe	29
PID 2432 wrote to memory of 612	2432	rundll32.exe	29
PID 2432 wrote to memory of 612	2432	rundll32.exe	29
PID 2432 wrote to memory of 612	2432	rundll32.exe	29
PID 2432 wrote to memory of 612	2432	rundll32.exe	29

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\df5111141778cc4c5e1a8af64d4660fd13225302e18fedfd4cec2616775a3195.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2432
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\df5111141778cc4c5e1a8af64d4660fd13225302e18fedfd4cec2616775a3195.dll,#1
  2⤵
  - Loads dropped DLL
  - Drops file in Program Files directory
  - Suspicious use of AdjustPrivilegeToken
  PID:612

Network

MITRE ATT&CK Matrix

Replay Monitor

Loading Replay Monitor...

Downloads

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

Filesize
67KB

MD5
7574cf2c64f35161ab1292e2f532aabf

SHA1
14ba3fa927a06224dfe587014299e834def4644f

SHA256
de055a89de246e629a8694bde18af2b1605e4b9b493c7e4aef669dd67acf5085

SHA512
4db19f2d8d5bc1c7bbb812d3fa9c43b80fa22140b346d2760f090b73aed8a5177edb4bddc647a6ebd5a2db8565be5a1a36a602b0d759e38540d9a584ba5896ab

Download Submit
memory/612-3-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download
memory/612-4-0x00000000746A0000-0x0000000074711000-memory.dmp

Filesize
452KB

Download
memory/612-5-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download