floxif | f6fa02359a22c3b15dc2cd73754e59cc5aea9eaa626123012276678ba1e0a413

Analysis

max time kernel
150s
max time network
152s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
29-12-2024 12:27

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General

Target

2024-12-29_4aabc1979ac2239c0efd419180fe0037_floxif_hijackloader_mafia.exe
Size

2.7MB
MD5

4aabc1979ac2239c0efd419180fe0037
SHA1

ac3f2efaea5a73e7e395b1d2f7bd22a1c78c2223
SHA256

f6fa02359a22c3b15dc2cd73754e59cc5aea9eaa626123012276678ba1e0a413
SHA512

c91520aab62fb655c466aac1d7cd23450e2b8f725c16860f13b2290d2d931b5bdac46207a812c0dab83a249537b97c2b5cfa6542184a049414ca4b5ff8fe31a6
SSDEEP

49152:KIGYB+v+ta6viBRbJXQ++Tatqc5doCUW5SwFAvhDzaDrhFmAxRcnZPCCGiPxe7WX:K6TKB/AdKqc5doCUW5jFAvBODRRAZPCw

Score

10^/10

floxif backdoor discovery persistence privilege_escalation 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/0x000a000000023ca3-1.dat	floxif

Event Triggered Execution: AppInit DLLs 1 TTPs
Adversaries may establish persistence and/or elevate privileges by executing malicious content triggered by AppInit DLLs loaded into processes.
persistence privilege_escalation

AppInit DLLs
T1546.010

ACProtect 1.3x - 1.4x DLL software 1 IoCs

Detects file using ACProtect software.

resource	yara_rule
behavioral2/files/0x000a000000023ca3-1.dat	acprotect

Loads dropped DLL 5 IoCs

pid	Process
4476	2024-12-29_4aabc1979ac2239c0efd419180fe0037_floxif_hijackloader_mafia.exe
2096	WerFault.exe
4944	WerFault.exe
3480	WerFault.exe
2764	WerFault.exe

UPX packed file 3 IoCs

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

upx

resource	yara_rule
behavioral2/files/0x000a000000023ca3-1.dat	upx
behavioral2/memory/4476-4-0x0000000010000000-0x0000000010030000-memory.dmp	upx
behavioral2/memory/4476-13-0x0000000010000000-0x0000000010030000-memory.dmp	upx

Drops file in Program Files directory 1 IoCs

description	ioc	Process
File created	C:\Program Files\Common Files\System\symsrv.dll	2024-12-29_4aabc1979ac2239c0efd419180fe0037_floxif_hijackloader_mafia.exe

Program crash 2 IoCs

pid	pid_target	Process	procid_target
4944	4476	WerFault.exe	81
2764	4476	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	2024-12-29_4aabc1979ac2239c0efd419180fe0037_floxif_hijackloader_mafia.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
4476	2024-12-29_4aabc1979ac2239c0efd419180fe0037_floxif_hijackloader_mafia.exe
4476	2024-12-29_4aabc1979ac2239c0efd419180fe0037_floxif_hijackloader_mafia.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4476	2024-12-29_4aabc1979ac2239c0efd419180fe0037_floxif_hijackloader_mafia.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
4476	2024-12-29_4aabc1979ac2239c0efd419180fe0037_floxif_hijackloader_mafia.exe

C:\Users\Admin\AppData\Local\Temp\2024-12-29_4aabc1979ac2239c0efd419180fe0037_floxif_hijackloader_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2024-12-29_4aabc1979ac2239c0efd419180fe0037_floxif_hijackloader_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
- Suspicious use of SetWindowsHookEx
PID:4476
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4476 -s 804
  2⤵
  - Loads dropped DLL
  - Program crash
  PID:4944
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4476 -s 816
  2⤵
  - Loads dropped DLL
  - Program crash
  PID:2764

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 376 -p 4476 -ip 4476
1⤵
- Loads dropped DLL
PID:2096

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 472 -p 4476 -ip 4476
1⤵
- Loads dropped DLL
PID:3480

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Event Triggered Execution

T1546

AppInit DLLs

T1546.010

Privilege Escalation

Event Triggered Execution

T1546

AppInit DLLs

T1546.010

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/4476-4-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download
memory/4476-6-0x0000000000651000-0x0000000000652000-memory.dmp

Filesize
4KB

Download
memory/4476-13-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download
memory/4476-11-0x0000000000650000-0x00000000008F8000-memory.dmp

Filesize
2.7MB

Download