floxif | b836c8a0d5def0198309bad4e54bda6e4f0004137e0176236c123b49aea09671

Analysis

max time kernel
122s
max time network
126s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
04-01-2025 12:22

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General

Target

2025-01-04_0957040449fd45eb0cb04ad0abd55f49_floxif_mafia.exe
Size

306KB
MD5

0957040449fd45eb0cb04ad0abd55f49
SHA1

62879dff8068ffda52c59164ad24f7c1e37a4347
SHA256

b836c8a0d5def0198309bad4e54bda6e4f0004137e0176236c123b49aea09671
SHA512

775c280b2eef5096f116c06a664e8104856781e6e6141697aa163fa17b3c327c5f3a4085fe376bc2cdd3564475431c1d7381c6b429c59611b051fbf4f6b9ab3b
SSDEEP

6144:02MNLF0O+gSqWxrAbX1yqNNAQHSYvBV+UdvrEFp7hK1w/GI:0/H0OSqWxsbXgSiYvBjvrEH7kw/GI

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/0x0007000000012117-1.dat	floxif

ACProtect 1.3x - 1.4x DLL software 1 IoCs

Detects file using ACProtect software.

resource	yara_rule
behavioral1/files/0x0007000000012117-1.dat	acprotect

Loads dropped DLL 1 IoCs

pid	Process
1776	2025-01-04_0957040449fd45eb0cb04ad0abd55f49_floxif_mafia.exe

UPX packed file 3 IoCs

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

upx

resource	yara_rule
behavioral1/files/0x0007000000012117-1.dat	upx
behavioral1/memory/1776-3-0x0000000010000000-0x0000000010030000-memory.dmp	upx
behavioral1/memory/1776-12-0x0000000010000000-0x0000000010030000-memory.dmp	upx

Drops file in Program Files directory 1 IoCs

description	ioc	Process
File created	C:\Program Files\Common Files\System\symsrv.dll	2025-01-04_0957040449fd45eb0cb04ad0abd55f49_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	2025-01-04_0957040449fd45eb0cb04ad0abd55f49_floxif_mafia.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1776	2025-01-04_0957040449fd45eb0cb04ad0abd55f49_floxif_mafia.exe

C:\Users\Admin\AppData\Local\Temp\2025-01-04_0957040449fd45eb0cb04ad0abd55f49_floxif_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-01-04_0957040449fd45eb0cb04ad0abd55f49_floxif_mafia.exe"
1⤵
- Loads dropped DLL
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
PID:1776

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/1776-3-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download
memory/1776-10-0x00000000009D0000-0x0000000000A0C000-memory.dmp

Filesize
240KB

Download
memory/1776-12-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download