floxif | b6dce55dc2756b77395bf8799e91b9e6abf2570441bfc2de7875c6f2d0cb929b

Analysis

max time kernel
150s
max time network
149s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
17-10-2024 14:14

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General

Target

2024-10-17_d882edf9617b0f0f522f39b40e6a5de6_floxif_mafia.exe
Size

2.5MB
MD5

d882edf9617b0f0f522f39b40e6a5de6
SHA1

eaea57cec34f3a0c5dbf18f121a6765d84f60e4c
SHA256

b6dce55dc2756b77395bf8799e91b9e6abf2570441bfc2de7875c6f2d0cb929b
SHA512

f20bfa2a76b26d3e9a1a2d9f6307913f628a137ec957ca65d5439e043fe31e6bbc1de33ec57d473bbda3d066c4bd9d02f4c14c4905dca82b29f3dc12172b40bf
SSDEEP

49152:+uIIKpofs2hPd2l177BTK2VbDsar1YDj6:+jEfs2hPIl1/V

Score

10^/10

floxif backdoor discovery 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
behavioral2/files/0x000c000000023b2b-1.dat	floxif

ACProtect 1.3x - 1.4x DLL software 1 IoCs

Detects file using ACProtect software.

resource	yara_rule
behavioral2/files/0x000c000000023b2b-1.dat	acprotect

Loads dropped DLL 1 IoCs

pid	Process
1004	2024-10-17_d882edf9617b0f0f522f39b40e6a5de6_floxif_mafia.exe

UPX packed file 3 IoCs

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

upx

resource	yara_rule
behavioral2/files/0x000c000000023b2b-1.dat	upx
behavioral2/memory/1004-4-0x0000000010000000-0x0000000010030000-memory.dmp	upx
behavioral2/memory/1004-9-0x0000000010000000-0x0000000010030000-memory.dmp	upx

Drops file in Program Files directory 1 IoCs

description	ioc	Process
File created	C:\Program Files\Common Files\System\symsrv.dll	2024-10-17_d882edf9617b0f0f522f39b40e6a5de6_floxif_mafia.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2128	1004	WerFault.exe	83

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	2024-10-17_d882edf9617b0f0f522f39b40e6a5de6_floxif_mafia.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1004	2024-10-17_d882edf9617b0f0f522f39b40e6a5de6_floxif_mafia.exe

C:\Users\Admin\AppData\Local\Temp\2024-10-17_d882edf9617b0f0f522f39b40e6a5de6_floxif_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2024-10-17_d882edf9617b0f0f522f39b40e6a5de6_floxif_mafia.exe"
1⤵
- Loads dropped DLL
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
PID:1004
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1004 -s 840
  2⤵
  - Program crash
  PID:2128

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 452 -p 1004 -ip 1004
1⤵
PID:3076

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

Replay Monitor

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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/1004-4-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download
memory/1004-6-0x0000000000041000-0x0000000000042000-memory.dmp

Filesize
4KB

Download
memory/1004-9-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download
memory/1004-7-0x0000000000040000-0x00000000002AA000-memory.dmp

Filesize
2.4MB

Download