floxif | 675bd355cde5919832ed2dccda99484955e66c1cba5b5708e3b47e744cf649f9

Analysis

max time kernel
122s
max time network
122s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
23-12-2024 18:29

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General

Target

2024-12-23_a960cbe5925bc5585c362fe176ecf5de_floxif_mafia.exe
Size

519KB
MD5

a960cbe5925bc5585c362fe176ecf5de
SHA1

0d43bb2f1375da65913ef35591bb68e672e89b58
SHA256

675bd355cde5919832ed2dccda99484955e66c1cba5b5708e3b47e744cf649f9
SHA512

1831d29db983c0d11aa8eedf5b9c8e39829c04805dd9e872a88ba138e6ca45b938a097690769b716fb7b62dee5b2c1301e5ed824d1fba627023c34e451542be7
SSDEEP

12288:TqyRLu5aCWoevfZ1PUxHmA7HGbdPS4c54e08MGHxBjvrEH7K:T3GeAxHmA7HG0F54e08MGPrEH7K

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/0x000f0000000139a5-1.dat	floxif

ACProtect 1.3x - 1.4x DLL software 1 IoCs

Detects file using ACProtect software.

resource	yara_rule
behavioral1/files/0x000f0000000139a5-1.dat	acprotect

Loads dropped DLL 1 IoCs

pid	Process
1628	2024-12-23_a960cbe5925bc5585c362fe176ecf5de_floxif_mafia.exe

UPX packed file 3 IoCs

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

upx

resource	yara_rule
behavioral1/memory/1628-3-0x0000000010000000-0x0000000010030000-memory.dmp	upx
behavioral1/files/0x000f0000000139a5-1.dat	upx
behavioral1/memory/1628-7-0x0000000010000000-0x0000000010030000-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_a960cbe5925bc5585c362fe176ecf5de_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	2024-12-23_a960cbe5925bc5585c362fe176ecf5de_floxif_mafia.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1628	2024-12-23_a960cbe5925bc5585c362fe176ecf5de_floxif_mafia.exe

C:\Users\Admin\AppData\Local\Temp\2024-12-23_a960cbe5925bc5585c362fe176ecf5de_floxif_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2024-12-23_a960cbe5925bc5585c362fe176ecf5de_floxif_mafia.exe"
1⤵
- Loads dropped DLL
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
PID:1628

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/1628-3-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download
memory/1628-5-0x0000000000A30000-0x0000000000AA3000-memory.dmp

Filesize
460KB

Download
memory/1628-7-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download