floxif | 88c79b2ffe315e4333f66c3d83e311eb2686082af74d4d6a6e708786992421f9

Analysis

max time kernel
119s
max time network
120s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
05-09-2024 12:27

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General

Target

2024-09-05_42591be3a9ad472c6a101dc255b4f3ec_floxif_mafia.exe
Size

1.9MB
MD5

42591be3a9ad472c6a101dc255b4f3ec
SHA1

0d61ef2750b634effdd8d42726c2043f3aa038cf
SHA256

88c79b2ffe315e4333f66c3d83e311eb2686082af74d4d6a6e708786992421f9
SHA512

dfb2988fae0522bc1288d1cce3c02c0983cbfcc2a3d6642700d077f99923976c856c15bcda86c1334f5ad0005240f796ca890baf3ffa4428e967cd8cef0bcb15
SSDEEP

49152:SLjveDKVx+KJtOw8RG48p85PCzcs7dGyayEFD5VLD9RJ4KvJFBVAX69FPfO:SLeKOKTOw898O56zcs7dGyayEtLD9HvA

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
behavioral1/files/0x0007000000012116-1.dat	floxif

ACProtect 1.3x - 1.4x DLL software 1 IoCs

Detects file using ACProtect software.

resource	yara_rule
behavioral1/files/0x0007000000012116-1.dat	acprotect

Loads dropped DLL 1 IoCs

pid	Process
1552	2024-09-05_42591be3a9ad472c6a101dc255b4f3ec_floxif_mafia.exe

UPX packed file 3 IoCs

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

upx

resource	yara_rule
behavioral1/files/0x0007000000012116-1.dat	upx
behavioral1/memory/1552-3-0x0000000010000000-0x0000000010030000-memory.dmp	upx
behavioral1/memory/1552-8-0x0000000010000000-0x0000000010030000-memory.dmp	upx

Drops file in Program Files directory 1 IoCs

description	ioc	Process
File created	C:\Program Files\Common Files\System\symsrv.dll	2024-09-05_42591be3a9ad472c6a101dc255b4f3ec_floxif_mafia.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	2024-09-05_42591be3a9ad472c6a101dc255b4f3ec_floxif_mafia.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1552	2024-09-05_42591be3a9ad472c6a101dc255b4f3ec_floxif_mafia.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1552	2024-09-05_42591be3a9ad472c6a101dc255b4f3ec_floxif_mafia.exe

C:\Users\Admin\AppData\Local\Temp\2024-09-05_42591be3a9ad472c6a101dc255b4f3ec_floxif_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2024-09-05_42591be3a9ad472c6a101dc255b4f3ec_floxif_mafia.exe"
1⤵
- Loads dropped DLL
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
PID:1552

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

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

Filesize
67KB

MD5
7574cf2c64f35161ab1292e2f532aabf

SHA1
14ba3fa927a06224dfe587014299e834def4644f

SHA256
de055a89de246e629a8694bde18af2b1605e4b9b493c7e4aef669dd67acf5085

SHA512
4db19f2d8d5bc1c7bbb812d3fa9c43b80fa22140b346d2760f090b73aed8a5177edb4bddc647a6ebd5a2db8565be5a1a36a602b0d759e38540d9a584ba5896ab

Download Submit
memory/1552-3-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download
memory/1552-5-0x0000000001291000-0x0000000001292000-memory.dmp

Filesize
4KB

Download
memory/1552-8-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download
memory/1552-6-0x0000000001290000-0x0000000001470000-memory.dmp

Filesize
1.9MB

Download