gcleaner | 43c564b5f2587149259e538dbdceef713c9463b0f930072b93fa1f3e4c1fad20

General

Target

OZMZA_random.exe
Size

5.7MB
MD5

147f838d39e79dace6bd1ffe69de4720
SHA1

9e500d620c60e9ca88dd55934d638ca474c3745a
SHA256

43c564b5f2587149259e538dbdceef713c9463b0f930072b93fa1f3e4c1fad20
SHA512

2b6c5fb52b7152d1fb3ef33f10e8faaf7022eb4882a308cc15d1dc9d88d6ee19faf193989faea8fb49cfd25baf3fde1d97af279155a1dfbe39ceb0be62b0e480
SSDEEP

49152:naxHF9VoG6Dq4nk7B+Tn6td243jg3Un4/Rwskpghk8jlhK:aZFYHk7YIQ43gUQwdghk8jlh

Score

10^/10

gcleaner defense_evasion discovery loader

Malware Config

Extracted

Family

gcleaner

C2

185.156.73.23

Signatures

GCleaner
GCleaner is a Pay-Per-Install malware loader first discovered in early 2019.
loader gcleaner
Gcleaner family
gcleaner

Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 1 IoCs

defense_evasion

Query Registry

T1012

Virtualization/Sandbox Evasion

T1497

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	OZMZA_random.exe

Checks BIOS information in registry 2 TTPs 2 IoCs

BIOS information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	OZMZA_random.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	OZMZA_random.exe

Identifies Wine through registry keys 2 TTPs 1 IoCs

Wine is a compatibility layer capable of running Windows applications, which can be used as sandboxing environment.

defense_evasion

Query Registry

T1012

Virtualization/Sandbox Evasion

T1497

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3692679935-4019334568-335155002-1000\Software\Wine	OZMZA_random.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

pid	Process
2604	OZMZA_random.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	OZMZA_random.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
2604	OZMZA_random.exe

C:\Users\Admin\AppData\Local\Temp\OZMZA_random.exe
"C:\Users\Admin\AppData\Local\Temp\OZMZA_random.exe"
1⤵
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Checks BIOS information in registry
- Identifies Wine through registry keys
- Suspicious use of NtSetInformationThreadHideFromDebugger
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
PID:2604

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Virtualization/Sandbox Evasion

2

T1497

Credential Access

Discovery

Query Registry

3

T1012

System Information Discovery

1

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Virtualization/Sandbox Evasion

2

T1497

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

memory/2604-0-0x0000000000400000-0x0000000000C56000-memory.dmp

Filesize
8.3MB

Download
memory/2604-1-0x0000000077460000-0x0000000077462000-memory.dmp

Filesize
8KB

Download
memory/2604-2-0x0000000000401000-0x000000000080D000-memory.dmp

Filesize
4.0MB

Download
memory/2604-3-0x0000000000400000-0x0000000000C56000-memory.dmp

Filesize
8.3MB

Download
memory/2604-5-0x0000000000400000-0x0000000000C56000-memory.dmp

Filesize
8.3MB

Download
memory/2604-6-0x0000000000400000-0x0000000000C56000-memory.dmp

Filesize
8.3MB

Download
memory/2604-7-0x0000000000400000-0x0000000000C56000-memory.dmp

Filesize
8.3MB

Download
memory/2604-8-0x0000000000400000-0x0000000000C56000-memory.dmp

Filesize
8.3MB

Download
memory/2604-9-0x0000000000400000-0x0000000000C56000-memory.dmp

Filesize
8.3MB

Download
memory/2604-10-0x0000000000400000-0x0000000000C56000-memory.dmp

Filesize
8.3MB

Download
memory/2604-11-0x0000000000401000-0x000000000080D000-memory.dmp

Filesize
4.0MB

Download
memory/2604-12-0x0000000000400000-0x0000000000C56000-memory.dmp

Filesize
8.3MB

Download
memory/2604-13-0x0000000000400000-0x0000000000C56000-memory.dmp

Filesize
8.3MB

Download
memory/2604-14-0x0000000000400000-0x0000000000C56000-memory.dmp

Filesize
8.3MB

Download
memory/2604-16-0x0000000000400000-0x0000000000C56000-memory.dmp

Filesize
8.3MB

Download
memory/2604-15-0x0000000000400000-0x0000000000C56000-memory.dmp

Filesize
8.3MB

Download
memory/2604-17-0x0000000000400000-0x0000000000C56000-memory.dmp

Filesize
8.3MB

Download
memory/2604-18-0x0000000000400000-0x0000000000C56000-memory.dmp

Filesize
8.3MB

Download
memory/2604-19-0x0000000000400000-0x0000000000C56000-memory.dmp

Filesize
8.3MB

Download
memory/2604-20-0x0000000000400000-0x0000000000C56000-memory.dmp

Filesize
8.3MB

Download
memory/2604-21-0x0000000000400000-0x0000000000C56000-memory.dmp

Filesize
8.3MB

Download
memory/2604-22-0x0000000000400000-0x0000000000C56000-memory.dmp

Filesize
8.3MB

Download
memory/2604-23-0x0000000000400000-0x0000000000C56000-memory.dmp

Filesize
8.3MB

Download
memory/2604-24-0x0000000000400000-0x0000000000C56000-memory.dmp

Filesize
8.3MB

Download
memory/2604-25-0x0000000000400000-0x0000000000C56000-memory.dmp

Filesize
8.3MB

Download
memory/2604-26-0x0000000000400000-0x0000000000C56000-memory.dmp

Filesize
8.3MB

Download
memory/2604-27-0x0000000000400000-0x0000000000C56000-memory.dmp

Filesize
8.3MB

Download
memory/2604-28-0x0000000000400000-0x0000000000C56000-memory.dmp

Filesize
8.3MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads