floxif | 645d6b986cb08ecae7e759e619c6344b823d6b3d0d10faa0e7ba70c0f1396a57

Analysis

max time kernel
149s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
29-12-2024 22:41

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General

Target

645d6b986cb08ecae7e759e619c6344b823d6b3d0d10faa0e7ba70c0f1396a57.exe
Size

440KB
MD5

416dc96bfb96eda69301944619a3dde4
SHA1

1391c94fb89d841063ba4a98f394e2193ac600ac
SHA256

645d6b986cb08ecae7e759e619c6344b823d6b3d0d10faa0e7ba70c0f1396a57
SHA512

57cc1bb400e4f9c0dc7ea106501f3ab03c79bb830307b3fc511fa72597733c7fe089dcd66e776ff690783ce081c61c932c15bd1a02bec02554aa15455b1f6db6
SSDEEP

12288:2/J+CtaxnjZpAbxdxDcWcnR4bfXfwiSebrw8xHgbYpjE8NO0qwxeWfF02/S0lqJx:+eli+Z0DvfeUYqcZQCGm4YprEH7i1

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
behavioral2/files/0x000c000000023b59-1.dat	floxif

ACProtect 1.3x - 1.4x DLL software 1 IoCs

Detects file using ACProtect software.

resource	yara_rule
behavioral2/files/0x000c000000023b59-1.dat	acprotect

Loads dropped DLL 1 IoCs

pid	Process
2348	645d6b986cb08ecae7e759e619c6344b823d6b3d0d10faa0e7ba70c0f1396a57.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:	645d6b986cb08ecae7e759e619c6344b823d6b3d0d10faa0e7ba70c0f1396a57.exe

UPX packed file 3 IoCs

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

upx

resource	yara_rule
behavioral2/files/0x000c000000023b59-1.dat	upx
behavioral2/memory/2348-2-0x0000000010000000-0x0000000010030000-memory.dmp	upx
behavioral2/memory/2348-19-0x0000000010000000-0x0000000010030000-memory.dmp	upx

Drops file in Program Files directory 2 IoCs

description	ioc	Process
File created	C:\Program Files\Common Files\System\symsrv.dll	645d6b986cb08ecae7e759e619c6344b823d6b3d0d10faa0e7ba70c0f1396a57.exe
File created	\??\c:\program files\common files\system\symsrv.dll.000	645d6b986cb08ecae7e759e619c6344b823d6b3d0d10faa0e7ba70c0f1396a57.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	645d6b986cb08ecae7e759e619c6344b823d6b3d0d10faa0e7ba70c0f1396a57.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2348	645d6b986cb08ecae7e759e619c6344b823d6b3d0d10faa0e7ba70c0f1396a57.exe
2348	645d6b986cb08ecae7e759e619c6344b823d6b3d0d10faa0e7ba70c0f1396a57.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2348	645d6b986cb08ecae7e759e619c6344b823d6b3d0d10faa0e7ba70c0f1396a57.exe

C:\Users\Admin\AppData\Local\Temp\645d6b986cb08ecae7e759e619c6344b823d6b3d0d10faa0e7ba70c0f1396a57.exe
"C:\Users\Admin\AppData\Local\Temp\645d6b986cb08ecae7e759e619c6344b823d6b3d0d10faa0e7ba70c0f1396a57.exe"
1⤵
- Loads dropped DLL
- Enumerates connected drives
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2348

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Peripheral Device Discovery

T1120

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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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/2348-2-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download
memory/2348-5-0x00000000001E1000-0x00000000001E2000-memory.dmp

Filesize
4KB

Download
memory/2348-19-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download
memory/2348-17-0x00000000001E0000-0x0000000000247000-memory.dmp

Filesize
412KB

Download