floxif | 48d2768213fb969c82dd0c0888301ca7f3d9141bfa0cb47652f5ac6d8b6d6f05

General

Target

2024-12-31_80c80be1b4056a3ff43640511d448780_avoslocker_floxif_hijackloader_luca-stealer.exe
Size

1.1MB
MD5

80c80be1b4056a3ff43640511d448780
SHA1

c8800aaa24c828b1ad4471ab671385421fe0274d
SHA256

48d2768213fb969c82dd0c0888301ca7f3d9141bfa0cb47652f5ac6d8b6d6f05
SHA512

7edc6ccdd0852073ff2c5f3e2229f44084c2bde81f0b59df5d1b1d5df93b52744144e37acf3db175d408b4d1634f6063cc51fe9c144b33c5463a61a512a5490f
SSDEEP

24576:FrDOW4IWgp/Iwj+iYXAm5j+5oV0OqerrEH7Txr5VQ:RyWDWC/IwjoXAej+54dqeGxr5a

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
behavioral1/files/0x000a00000001225c-1.dat	floxif

ACProtect 1.3x - 1.4x DLL software 1 IoCs

Detects file using ACProtect software.

resource	yara_rule
behavioral1/files/0x000a00000001225c-1.dat	acprotect

Loads dropped DLL 1 IoCs

pid	Process
840	2024-12-31_80c80be1b4056a3ff43640511d448780_avoslocker_floxif_hijackloader_luca-stealer.exe

Enumerates connected drives 3 TTPs 1 IoCs

Attempts to read the root path of hard drives other than the default C: drive.

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

description	ioc	Process
File opened (read-only)	\??\e:	2024-12-31_80c80be1b4056a3ff43640511d448780_avoslocker_floxif_hijackloader_luca-stealer.exe

UPX packed file 3 IoCs

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

upx

resource	yara_rule
behavioral1/memory/840-3-0x0000000010000000-0x0000000010030000-memory.dmp	upx
behavioral1/files/0x000a00000001225c-1.dat	upx
behavioral1/memory/840-24-0x0000000010000000-0x0000000010030000-memory.dmp	upx

Drops file in Program Files directory 2 IoCs

description	ioc	Process
File created	\??\c:\program files\common files\system\symsrv.dll.000	2024-12-31_80c80be1b4056a3ff43640511d448780_avoslocker_floxif_hijackloader_luca-stealer.exe
File created	C:\Program Files\Common Files\System\symsrv.dll	2024-12-31_80c80be1b4056a3ff43640511d448780_avoslocker_floxif_hijackloader_luca-stealer.exe

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	2024-12-31_80c80be1b4056a3ff43640511d448780_avoslocker_floxif_hijackloader_luca-stealer.exe

Modifies system certificate store 2 TTPs 2 IoCs

evasion spyware trojan

Install Root Certificate

T1553.004

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\A8985D3A65E5E5C4B2D7D66D40C6DD2FB19C5436	2024-12-31_80c80be1b4056a3ff43640511d448780_avoslocker_floxif_hijackloader_luca-stealer.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\A8985D3A65E5E5C4B2D7D66D40C6DD2FB19C5436\Blob = 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	2024-12-31_80c80be1b4056a3ff43640511d448780_avoslocker_floxif_hijackloader_luca-stealer.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
840	2024-12-31_80c80be1b4056a3ff43640511d448780_avoslocker_floxif_hijackloader_luca-stealer.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	840	2024-12-31_80c80be1b4056a3ff43640511d448780_avoslocker_floxif_hijackloader_luca-stealer.exe

C:\Users\Admin\AppData\Local\Temp\2024-12-31_80c80be1b4056a3ff43640511d448780_avoslocker_floxif_hijackloader_luca-stealer.exe
"C:\Users\Admin\AppData\Local\Temp\2024-12-31_80c80be1b4056a3ff43640511d448780_avoslocker_floxif_hijackloader_luca-stealer.exe"
1⤵
- Loads dropped DLL
- Enumerates connected drives
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
- Modifies system certificate store
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:840

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Subvert Trust Controls

1

T1553

Install Root Certificate

1

T1553.004

Credential Access

Discovery

Peripheral Device Discovery

Query Registry

System Information Discovery

1

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

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

Filesize
67KB

MD5
7574cf2c64f35161ab1292e2f532aabf

SHA1
14ba3fa927a06224dfe587014299e834def4644f

SHA256
de055a89de246e629a8694bde18af2b1605e4b9b493c7e4aef669dd67acf5085

SHA512
4db19f2d8d5bc1c7bbb812d3fa9c43b80fa22140b346d2760f090b73aed8a5177edb4bddc647a6ebd5a2db8565be5a1a36a602b0d759e38540d9a584ba5896ab

Download Submit
memory/840-3-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download
memory/840-24-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download
memory/840-22-0x00000000001C0000-0x00000000002BC000-memory.dmp

Filesize
1008KB

Download

Analysis

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