gcleaner | 4690f344f5c5b5af5c308fe96f625311c35c80e0868ae31b48aee89371634fae

General

Target

4690f344f5c5b5af5c308fe96f625311c35c80e0868ae31b48aee89371634fae.exe
Size

1.8MB
MD5

7ac23fe5a3675da79e777abc39224cae
SHA1

991c97889ddca59ef7d74ea99c28444f4d60332d
SHA256

4690f344f5c5b5af5c308fe96f625311c35c80e0868ae31b48aee89371634fae
SHA512

7a99e9f3e28804eb7e72556db7471853ee51bd9284646e8143caef2d9ce1508f1df8c5fcc5de7757e42b5ee870ae4a9c7fe9a14601f1e6525cdabb1bd9c25b73
SSDEEP

49152:MHELYkG+4E45/ylfAp9qyZHfRKtO105alhKmY8MQMwSZMvWh:WErI5qliMyZHfIt7I6Q9SGv

Score

10^/10

gcleaner defense_evasion discovery loader

Malware Config

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__	4690f344f5c5b5af5c308fe96f625311c35c80e0868ae31b48aee89371634fae.exe

Downloads MZ/PE file 1 IoCs

flow	pid	Process
16	3800	4690f344f5c5b5af5c308fe96f625311c35c80e0868ae31b48aee89371634fae.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	4690f344f5c5b5af5c308fe96f625311c35c80e0868ae31b48aee89371634fae.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	4690f344f5c5b5af5c308fe96f625311c35c80e0868ae31b48aee89371634fae.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-1-5-21-4089630652-1596403869-279772308-1000\Software\Wine	4690f344f5c5b5af5c308fe96f625311c35c80e0868ae31b48aee89371634fae.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

pid	Process
3800	4690f344f5c5b5af5c308fe96f625311c35c80e0868ae31b48aee89371634fae.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2560	3800	WerFault.exe	83

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	4690f344f5c5b5af5c308fe96f625311c35c80e0868ae31b48aee89371634fae.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
3800	4690f344f5c5b5af5c308fe96f625311c35c80e0868ae31b48aee89371634fae.exe
3800	4690f344f5c5b5af5c308fe96f625311c35c80e0868ae31b48aee89371634fae.exe

C:\Users\Admin\AppData\Local\Temp\4690f344f5c5b5af5c308fe96f625311c35c80e0868ae31b48aee89371634fae.exe
"C:\Users\Admin\AppData\Local\Temp\4690f344f5c5b5af5c308fe96f625311c35c80e0868ae31b48aee89371634fae.exe"
1⤵
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Downloads MZ/PE file
- Checks BIOS information in registry
- Identifies Wine through registry keys
- Suspicious use of NtSetInformationThreadHideFromDebugger
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
PID:3800
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3800 -s 1684
  2⤵
  - Program crash
  PID:2560

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 456 -p 3800 -ip 3800
1⤵
PID:4364

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

2

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

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\PGH3GSHW\download[1].htm

Filesize
1B

MD5
cfcd208495d565ef66e7dff9f98764da

SHA1
b6589fc6ab0dc82cf12099d1c2d40ab994e8410c

SHA256
5feceb66ffc86f38d952786c6d696c79c2dbc239dd4e91b46729d73a27fb57e9

SHA512
31bca02094eb78126a517b206a88c73cfa9ec6f704c7030d18212cace820f025f00bf0ea68dbf3f3a5436ca63b53bf7bf80ad8d5de7d8359d0b7fed9dbc3ab99

Download Submit
memory/3800-15-0x0000000000400000-0x0000000000C56000-memory.dmp

Filesize
8.3MB

Download
memory/3800-20-0x0000000000400000-0x0000000000C56000-memory.dmp

Filesize
8.3MB

Download
memory/3800-2-0x0000000000401000-0x0000000000426000-memory.dmp

Filesize
148KB

Download
memory/3800-4-0x0000000000400000-0x0000000000C56000-memory.dmp

Filesize
8.3MB

Download
memory/3800-6-0x0000000000400000-0x0000000000C56000-memory.dmp

Filesize
8.3MB

Download
memory/3800-7-0x0000000000400000-0x0000000000C56000-memory.dmp

Filesize
8.3MB

Download
memory/3800-11-0x0000000010000000-0x000000001001C000-memory.dmp

Filesize
112KB

Download
memory/3800-0-0x0000000000400000-0x0000000000C56000-memory.dmp

Filesize
8.3MB

Download
memory/3800-3-0x0000000000400000-0x0000000000C56000-memory.dmp

Filesize
8.3MB

Download
memory/3800-17-0x0000000000401000-0x0000000000426000-memory.dmp

Filesize
148KB

Download
memory/3800-18-0x0000000000400000-0x0000000000C56000-memory.dmp

Filesize
8.3MB

Download
memory/3800-21-0x0000000000400000-0x0000000000C56000-memory.dmp

Filesize
8.3MB

Download
memory/3800-1-0x0000000076FE4000-0x0000000076FE6000-memory.dmp

Filesize
8KB

Download
memory/3800-23-0x0000000000400000-0x0000000000C56000-memory.dmp

Filesize
8.3MB

Download
memory/3800-28-0x0000000000400000-0x0000000000C56000-memory.dmp

Filesize
8.3MB

Download
memory/3800-34-0x0000000000400000-0x0000000000C56000-memory.dmp

Filesize
8.3MB

Download
memory/3800-40-0x0000000000400000-0x0000000000C56000-memory.dmp

Filesize
8.3MB

Download
memory/3800-41-0x0000000000401000-0x0000000000426000-memory.dmp

Filesize
148KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads