floxif | e3bab2cd0bef38c4958766e125e9c8ee162dc6ed7a313578b1587dbb98080df4

Analysis

max time kernel
105s
max time network
121s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
24/08/2024, 15:16

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General

Target

f6813f15a2962785adca05515b2a3d10N.exe
Size

157KB
MD5

f6813f15a2962785adca05515b2a3d10
SHA1

8338cbf5d5d1faa13539765114e5de92267cee87
SHA256

e3bab2cd0bef38c4958766e125e9c8ee162dc6ed7a313578b1587dbb98080df4
SHA512

cc6414a83325377b7ca3433398e5575e7b2f29f9d79076b87e634fbc07bce846bf8262f72a76cca5a49def11c56c440c8acbec0956ebf4eb8410b153c713c37f
SSDEEP

3072:ZPV0Lg0+5Kx+kvuARpvn2lQBV+UdE+rECWp7hKSS8H:ZPV0LgKx+iZBV+UdvrEFp7hK/8H

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
behavioral2/files/0x00090000000233db-1.dat	floxif

ACProtect 1.3x - 1.4x DLL software 1 IoCs

Detects file using ACProtect software.

resource	yara_rule
behavioral2/files/0x00090000000233db-1.dat	acprotect

Loads dropped DLL 1 IoCs

pid	Process
4784	f6813f15a2962785adca05515b2a3d10N.exe

UPX packed file 3 IoCs

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

upx

resource	yara_rule
behavioral2/files/0x00090000000233db-1.dat	upx
behavioral2/memory/4784-4-0x0000000010000000-0x0000000010030000-memory.dmp	upx
behavioral2/memory/4784-8-0x0000000010000000-0x0000000010030000-memory.dmp	upx

Drops file in Program Files directory 1 IoCs

description	ioc	Process
File created	C:\Program Files\Common Files\System\symsrv.dll	f6813f15a2962785adca05515b2a3d10N.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	f6813f15a2962785adca05515b2a3d10N.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4784	f6813f15a2962785adca05515b2a3d10N.exe

C:\Users\Admin\AppData\Local\Temp\f6813f15a2962785adca05515b2a3d10N.exe
"C:\Users\Admin\AppData\Local\Temp\f6813f15a2962785adca05515b2a3d10N.exe"
1⤵
- Loads dropped DLL
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
PID:4784

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

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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/4784-4-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download
memory/4784-6-0x0000000000B30000-0x0000000000E07000-memory.dmp

Filesize
2.8MB

Download
memory/4784-8-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download