floxif | 67ad5069a2f051c8ae229a8cd76be385b3fd50fda7b733262cb8793a54399f0a

Analysis

max time kernel
91s
max time network
141s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
23-12-2024 00:50

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General

Target

2024-12-23_9aba6912ae4aeb72657bb04ad5743b59_floxif_mafia.exe
Size

239KB
MD5

9aba6912ae4aeb72657bb04ad5743b59
SHA1

49cfafbfe7d6caa00e418338a3c9469dcac9db18
SHA256

67ad5069a2f051c8ae229a8cd76be385b3fd50fda7b733262cb8793a54399f0a
SHA512

67086c53d7c2322df27bd87eeb03c0356ddfa011abc0916aeb69ce70b46034ddb83ada7f643a3c33a51d9211aa62c1a8b57f9f6c5ca886be6dc1752c2393bf98
SSDEEP

6144:z2UtSGKKMcFZlVSd3CKBV+UdvrEFp7hK2xs:9KKMcFZlVSdyKBjvrEH7H6

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/0x000c000000023ba4-1.dat	floxif

ACProtect 1.3x - 1.4x DLL software 1 IoCs

Detects file using ACProtect software.

resource	yara_rule
behavioral2/files/0x000c000000023ba4-1.dat	acprotect

Loads dropped DLL 1 IoCs

pid	Process
2916	2024-12-23_9aba6912ae4aeb72657bb04ad5743b59_floxif_mafia.exe

UPX packed file 3 IoCs

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

upx

resource	yara_rule
behavioral2/files/0x000c000000023ba4-1.dat	upx
behavioral2/memory/2916-2-0x0000000010000000-0x0000000010030000-memory.dmp	upx
behavioral2/memory/2916-8-0x0000000010000000-0x0000000010030000-memory.dmp	upx

Drops file in Program Files directory 1 IoCs

description	ioc	Process
File created	C:\Program Files\Common Files\System\symsrv.dll	2024-12-23_9aba6912ae4aeb72657bb04ad5743b59_floxif_mafia.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
4316	2916	WerFault.exe	84

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	2024-12-23_9aba6912ae4aeb72657bb04ad5743b59_floxif_mafia.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2916	2024-12-23_9aba6912ae4aeb72657bb04ad5743b59_floxif_mafia.exe

C:\Users\Admin\AppData\Local\Temp\2024-12-23_9aba6912ae4aeb72657bb04ad5743b59_floxif_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2024-12-23_9aba6912ae4aeb72657bb04ad5743b59_floxif_mafia.exe"
1⤵
- Loads dropped DLL
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
PID:2916
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2916 -s 420
  2⤵
  - Program crash
  PID:4316

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 460 -p 2916 -ip 2916
1⤵
PID:3976

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/2916-2-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download
memory/2916-6-0x0000000000D50000-0x0000000000D7F000-memory.dmp

Filesize
188KB

Download
memory/2916-8-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download