floxif | 3085a38473611394a1816174050d683ea356044dd7e5e9e8724abb8216f1b0fe

Analysis

max time kernel
121s
max time network
122s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
19-11-2024 20:54

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General

Target

3085a38473611394a1816174050d683ea356044dd7e5e9e8724abb8216f1b0fe.exe
Size

8.2MB
MD5

fb5745e5e31e27b61029846ad864880f
SHA1

b6dace6a4bb5b1a08447b5f6f4980e1cbc04b863
SHA256

3085a38473611394a1816174050d683ea356044dd7e5e9e8724abb8216f1b0fe
SHA512

3845f7135bdac29b435697aed2bea3d59d8d7b09b9287ea8978146e35b550a7c5e648bc22c29b6a6d5c605e0b0a039cec779cba9ace6b7313552d65767e45c64
SSDEEP

196608:rMuXjuaY0YPW9VNRMEoQfQHxiLl7sUUxy1Sd:rRXSaY0zMEoQfQHx1UUxy1Sd

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

Processes:

resource	yara_rule
behavioral1/files/0x000700000001211a-1.dat	floxif

ACProtect 1.3x - 1.4x DLL software 1 IoCs

Detects file using ACProtect software.

Processes:

resource	yara_rule
behavioral1/files/0x000700000001211a-1.dat	acprotect

Loads dropped DLL 1 IoCs

Processes:

3085a38473611394a1816174050d683ea356044dd7e5e9e8724abb8216f1b0fe.exe

pid	Process
2872	3085a38473611394a1816174050d683ea356044dd7e5e9e8724abb8216f1b0fe.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

Processes:

3085a38473611394a1816174050d683ea356044dd7e5e9e8724abb8216f1b0fe.exe

description	ioc	Process
File opened (read-only)	\??\e:	3085a38473611394a1816174050d683ea356044dd7e5e9e8724abb8216f1b0fe.exe

UPX packed file 3 IoCs

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

upx

Processes:

resource	yara_rule
behavioral1/files/0x000700000001211a-1.dat	upx
behavioral1/memory/2872-3-0x0000000010000000-0x0000000010030000-memory.dmp	upx
behavioral1/memory/2872-12-0x0000000010000000-0x0000000010030000-memory.dmp	upx

Drops file in Program Files directory 2 IoCs

Processes:

3085a38473611394a1816174050d683ea356044dd7e5e9e8724abb8216f1b0fe.exe

description	ioc	Process
File created	C:\Program Files\Common Files\System\symsrv.dll	3085a38473611394a1816174050d683ea356044dd7e5e9e8724abb8216f1b0fe.exe
File created	\??\c:\program files\common files\system\symsrv.dll.000	3085a38473611394a1816174050d683ea356044dd7e5e9e8724abb8216f1b0fe.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

Processes:

3085a38473611394a1816174050d683ea356044dd7e5e9e8724abb8216f1b0fe.exe

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	3085a38473611394a1816174050d683ea356044dd7e5e9e8724abb8216f1b0fe.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

Processes:

3085a38473611394a1816174050d683ea356044dd7e5e9e8724abb8216f1b0fe.exe

pid	Process
2872	3085a38473611394a1816174050d683ea356044dd7e5e9e8724abb8216f1b0fe.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

3085a38473611394a1816174050d683ea356044dd7e5e9e8724abb8216f1b0fe.exe

description	pid	Process
Token: SeDebugPrivilege	2872	3085a38473611394a1816174050d683ea356044dd7e5e9e8724abb8216f1b0fe.exe

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

3085a38473611394a1816174050d683ea356044dd7e5e9e8724abb8216f1b0fe.exe

pid	Process
2872	3085a38473611394a1816174050d683ea356044dd7e5e9e8724abb8216f1b0fe.exe

C:\Users\Admin\AppData\Local\Temp\3085a38473611394a1816174050d683ea356044dd7e5e9e8724abb8216f1b0fe.exe
"C:\Users\Admin\AppData\Local\Temp\3085a38473611394a1816174050d683ea356044dd7e5e9e8724abb8216f1b0fe.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
- Suspicious use of SetWindowsHookEx
PID:2872

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

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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/2872-3-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download
memory/2872-12-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download