floxif | 86a8d73a35fe8b4275cc6f0b42c4395c7a8f443099de13b2ca51fe82a8507c72

Analysis

max time kernel
92s
max time network
153s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
12/10/2024, 12:30

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General

Target

86a8d73a35fe8b4275cc6f0b42c4395c7a8f443099de13b2ca51fe82a8507c72.exe
Size

286KB
MD5

c3dbfbde675d17f3518172feaabc7538
SHA1

2eb3e469e5fd9e74325ea58643778b7f3e704de6
SHA256

86a8d73a35fe8b4275cc6f0b42c4395c7a8f443099de13b2ca51fe82a8507c72
SHA512

03bbfecab64c5392aab96635b4cece4a39fbb379eb0c8f2c464c29c8851a99318c118685169ad444a603fc7b1bcd072c06c016e2c9aaf98bfa466767a031fc73
SSDEEP

6144:B7gKNkhSRKykHouyXnZhB+h8WHlBV+UdvrEFp7hKq1:B7gKNkhmKsuyXnPB+h8WHlBjvrEH711

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/0x000b000000023c75-1.dat	floxif

ACProtect 1.3x - 1.4x DLL software 1 IoCs

Detects file using ACProtect software.

resource	yara_rule
behavioral2/files/0x000b000000023c75-1.dat	acprotect

Loads dropped DLL 1 IoCs

pid	Process
3392	86a8d73a35fe8b4275cc6f0b42c4395c7a8f443099de13b2ca51fe82a8507c72.exe

UPX packed file 3 IoCs

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

upx

resource	yara_rule
behavioral2/files/0x000b000000023c75-1.dat	upx
behavioral2/memory/3392-2-0x0000000010000000-0x0000000010030000-memory.dmp	upx
behavioral2/memory/3392-7-0x0000000010000000-0x0000000010030000-memory.dmp	upx

Drops file in Program Files directory 1 IoCs

description	ioc	Process
File created	C:\Program Files\Common Files\System\symsrv.dll	86a8d73a35fe8b4275cc6f0b42c4395c7a8f443099de13b2ca51fe82a8507c72.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	86a8d73a35fe8b4275cc6f0b42c4395c7a8f443099de13b2ca51fe82a8507c72.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3392	86a8d73a35fe8b4275cc6f0b42c4395c7a8f443099de13b2ca51fe82a8507c72.exe

C:\Users\Admin\AppData\Local\Temp\86a8d73a35fe8b4275cc6f0b42c4395c7a8f443099de13b2ca51fe82a8507c72.exe
"C:\Users\Admin\AppData\Local\Temp\86a8d73a35fe8b4275cc6f0b42c4395c7a8f443099de13b2ca51fe82a8507c72.exe"
1⤵
- Loads dropped DLL
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
PID:3392

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

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

Filesize
67KB

MD5
7574cf2c64f35161ab1292e2f532aabf

SHA1
14ba3fa927a06224dfe587014299e834def4644f

SHA256
de055a89de246e629a8694bde18af2b1605e4b9b493c7e4aef669dd67acf5085

SHA512
4db19f2d8d5bc1c7bbb812d3fa9c43b80fa22140b346d2760f090b73aed8a5177edb4bddc647a6ebd5a2db8565be5a1a36a602b0d759e38540d9a584ba5896ab

Download Submit
memory/3392-2-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download
memory/3392-7-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download
memory/3392-5-0x0000000000C40000-0x0000000000C77000-memory.dmp

Filesize
220KB

Download