floxif | 7fb1a5ab3c47dcc38d2a40610092651a5e1e4e1bd136e3cfad1b05f0205f3136

Analysis

max time kernel
93s
max time network
142s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
10/01/2025, 02:50

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General

Target

2025-01-10_80c525e07e04efdfa5d77ae4de08c27f_floxif_mafia.exe
Size

2.5MB
MD5

80c525e07e04efdfa5d77ae4de08c27f
SHA1

3314610ab1938f89d6d391d718e38bd5ecc95d08
SHA256

7fb1a5ab3c47dcc38d2a40610092651a5e1e4e1bd136e3cfad1b05f0205f3136
SHA512

7631b93e5bb119b2aca180aae452ec5c9c6988bb5529e5a2f5859cf4ec49af5714fb024edfb9f5bc32a3e3c69f94cb9c4d0af003cf9118a71393852469600398
SSDEEP

49152:tuIIZhofs2hPd2l177BTK2VbDsar1YDj7:tjFfs2hPIl1/8

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/0x000c000000023b8d-1.dat	floxif

ACProtect 1.3x - 1.4x DLL software 1 IoCs

Detects file using ACProtect software.

resource	yara_rule
behavioral2/files/0x000c000000023b8d-1.dat	acprotect

Loads dropped DLL 1 IoCs

pid	Process
4080	2025-01-10_80c525e07e04efdfa5d77ae4de08c27f_floxif_mafia.exe

UPX packed file 3 IoCs

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

upx

resource	yara_rule
behavioral2/files/0x000c000000023b8d-1.dat	upx
behavioral2/memory/4080-4-0x0000000010000000-0x0000000010030000-memory.dmp	upx
behavioral2/memory/4080-10-0x0000000010000000-0x0000000010030000-memory.dmp	upx

Drops file in Program Files directory 1 IoCs

description	ioc	Process
File created	C:\Program Files\Common Files\System\symsrv.dll	2025-01-10_80c525e07e04efdfa5d77ae4de08c27f_floxif_mafia.exe

Program crash 3 IoCs

pid	pid_target	Process	procid_target
2688	4080	WerFault.exe	81
2820	4080	WerFault.exe	81
3124	4080	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	2025-01-10_80c525e07e04efdfa5d77ae4de08c27f_floxif_mafia.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
4080	2025-01-10_80c525e07e04efdfa5d77ae4de08c27f_floxif_mafia.exe
4080	2025-01-10_80c525e07e04efdfa5d77ae4de08c27f_floxif_mafia.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4080	2025-01-10_80c525e07e04efdfa5d77ae4de08c27f_floxif_mafia.exe

C:\Users\Admin\AppData\Local\Temp\2025-01-10_80c525e07e04efdfa5d77ae4de08c27f_floxif_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-01-10_80c525e07e04efdfa5d77ae4de08c27f_floxif_mafia.exe"
1⤵
- Loads dropped DLL
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4080
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4080 -s 832
  2⤵
  - Program crash
  PID:2688
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4080 -s 908
  2⤵
  - Program crash
  PID:2820
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4080 -s 840
  2⤵
  - Program crash
  PID:3124

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4080 -ip 4080
1⤵
PID:2988

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 436 -p 4080 -ip 4080
1⤵
PID:4600

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 560 -p 4080 -ip 4080
1⤵
PID:3924

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

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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/4080-4-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download
memory/4080-6-0x0000000000581000-0x0000000000582000-memory.dmp

Filesize
4KB

Download
memory/4080-10-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download
memory/4080-8-0x0000000000580000-0x00000000007EA000-memory.dmp

Filesize
2.4MB

Download