gcleaner | 9cd587e74a90f572286c6606c8d0dd40c5053aab867b5347c2499e5338a46b2d

General

Target

9cd587e74a90f572286c6606c8d0dd40c5053aab867b5347c2499e5338a46b2d.exe
Size

1.8MB
MD5

659b475361502e4bb93cb3978d0d69c6
SHA1

9b4db8cab515e22350a6de83e9b892e9376fd391
SHA256

9cd587e74a90f572286c6606c8d0dd40c5053aab867b5347c2499e5338a46b2d
SHA512

6b31ca314b6c4268703197bdcc093fde7cfa50d2ea8461a9fe83ee7da1d2ea0bfedf13dab4c4cfecddd1bb172990cd19f1d0714324c58ec0d3a61f8ad8f1491f
SSDEEP

49152:oGsSbw6I87hDyW5y0d2QVzbqhTBnk0AlORGIi05sXf:vw65eueT20OIiK

Score

10^/10

gcleaner discovery evasion 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

evasion

Query Registry

T1012

Virtualization/Sandbox Evasion

T1497

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	9cd587e74a90f572286c6606c8d0dd40c5053aab867b5347c2499e5338a46b2d.exe

Downloads MZ/PE file

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	9cd587e74a90f572286c6606c8d0dd40c5053aab867b5347c2499e5338a46b2d.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	9cd587e74a90f572286c6606c8d0dd40c5053aab867b5347c2499e5338a46b2d.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.

evasion

Query Registry

T1012

Virtualization/Sandbox Evasion

T1497

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\Software\Wine	9cd587e74a90f572286c6606c8d0dd40c5053aab867b5347c2499e5338a46b2d.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

pid	Process
1032	9cd587e74a90f572286c6606c8d0dd40c5053aab867b5347c2499e5338a46b2d.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
4944	1032	WerFault.exe	82

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	9cd587e74a90f572286c6606c8d0dd40c5053aab867b5347c2499e5338a46b2d.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1032	9cd587e74a90f572286c6606c8d0dd40c5053aab867b5347c2499e5338a46b2d.exe
1032	9cd587e74a90f572286c6606c8d0dd40c5053aab867b5347c2499e5338a46b2d.exe

C:\Users\Admin\AppData\Local\Temp\9cd587e74a90f572286c6606c8d0dd40c5053aab867b5347c2499e5338a46b2d.exe
"C:\Users\Admin\AppData\Local\Temp\9cd587e74a90f572286c6606c8d0dd40c5053aab867b5347c2499e5338a46b2d.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:1032
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1032 -s 1476
  2⤵
  - Program crash
  PID:4944

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 412 -p 1032 -ip 1032
1⤵
PID:4360

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\VKYZDMA5\download[1].htm

Filesize
1B

MD5
cfcd208495d565ef66e7dff9f98764da

SHA1
b6589fc6ab0dc82cf12099d1c2d40ab994e8410c

SHA256
5feceb66ffc86f38d952786c6d696c79c2dbc239dd4e91b46729d73a27fb57e9

SHA512
31bca02094eb78126a517b206a88c73cfa9ec6f704c7030d18212cace820f025f00bf0ea68dbf3f3a5436ca63b53bf7bf80ad8d5de7d8359d0b7fed9dbc3ab99

Download Submit
memory/1032-15-0x0000000000400000-0x0000000000C5D000-memory.dmp

Filesize
8.4MB

Download
memory/1032-6-0x0000000000400000-0x0000000000C5D000-memory.dmp

Filesize
8.4MB

Download
memory/1032-18-0x0000000000401000-0x0000000000427000-memory.dmp

Filesize
152KB

Download
memory/1032-4-0x0000000000400000-0x0000000000C5D000-memory.dmp

Filesize
8.4MB

Download
memory/1032-19-0x0000000000400000-0x0000000000C5D000-memory.dmp

Filesize
8.4MB

Download
memory/1032-7-0x0000000000400000-0x0000000000C5D000-memory.dmp

Filesize
8.4MB

Download
memory/1032-11-0x0000000010000000-0x000000001001C000-memory.dmp

Filesize
112KB

Download
memory/1032-21-0x0000000000400000-0x0000000000C5D000-memory.dmp

Filesize
8.4MB

Download
memory/1032-2-0x0000000000401000-0x0000000000427000-memory.dmp

Filesize
152KB

Download
memory/1032-3-0x0000000000400000-0x0000000000C5D000-memory.dmp

Filesize
8.4MB

Download
memory/1032-0-0x0000000000400000-0x0000000000C5D000-memory.dmp

Filesize
8.4MB

Download
memory/1032-22-0x0000000000400000-0x0000000000C5D000-memory.dmp

Filesize
8.4MB

Download
memory/1032-1-0x0000000077644000-0x0000000077646000-memory.dmp

Filesize
8KB

Download
memory/1032-24-0x0000000000400000-0x0000000000C5D000-memory.dmp

Filesize
8.4MB

Download
memory/1032-29-0x0000000000400000-0x0000000000C5D000-memory.dmp

Filesize
8.4MB

Download
memory/1032-35-0x0000000000400000-0x0000000000C5D000-memory.dmp

Filesize
8.4MB

Download
memory/1032-41-0x0000000000400000-0x0000000000C5D000-memory.dmp

Filesize
8.4MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads