gcleaner | 323426e01a17e9974e2c710c0708a7232d250a2a7aa815ee7fdfac5f634af0e2

General

Target

06K80_file.exe
Size

1.9MB
MD5

2e164f8eb316718ae1c48ed84e05dc9f
SHA1

653b1c1598a62782b58e52dd3f2c53355aad94fa
SHA256

323426e01a17e9974e2c710c0708a7232d250a2a7aa815ee7fdfac5f634af0e2
SHA512

4c47f3284fb5220338700b8a86892184fc9956844dd041a88b47d35ebabbb4a70a3922158f02c3f40e594a74f70e6c1f929750404a2b09240535ed7d91dce4a4
SSDEEP

24576:FZjVHfyt/9PRZ9j7d8t0Dls0wnohMQbqzXRqv2ZkA/35YZrPJlGmvrjynr4aAgiH:FZ9G9tfd40adoijcv6WflG4Dnr

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__	06K80_file.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	06K80_file.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	06K80_file.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-1-5-21-2878641211-696417878-3864914810-1000\Software\Wine	06K80_file.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

pid	Process
5100	06K80_file.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
2536	5100	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	06K80_file.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
5100	06K80_file.exe
5100	06K80_file.exe

C:\Users\Admin\AppData\Local\Temp\06K80_file.exe
"C:\Users\Admin\AppData\Local\Temp\06K80_file.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:5100
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 5100 -s 576
  2⤵
  - Program crash
  PID:2536

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 456 -p 5100 -ip 5100
1⤵
PID:1724

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

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\8R55UT9S\download[1].htm

Filesize
1B

MD5
cfcd208495d565ef66e7dff9f98764da

SHA1
b6589fc6ab0dc82cf12099d1c2d40ab994e8410c

SHA256
5feceb66ffc86f38d952786c6d696c79c2dbc239dd4e91b46729d73a27fb57e9

SHA512
31bca02094eb78126a517b206a88c73cfa9ec6f704c7030d18212cace820f025f00bf0ea68dbf3f3a5436ca63b53bf7bf80ad8d5de7d8359d0b7fed9dbc3ab99

Download Submit
memory/5100-12-0x0000000010000000-0x000000001001C000-memory.dmp

Filesize
112KB

Download
memory/5100-4-0x0000000000400000-0x0000000000C6E000-memory.dmp

Filesize
8.4MB

Download
memory/5100-17-0x0000000000400000-0x0000000000C6E000-memory.dmp

Filesize
8.4MB

Download
memory/5100-18-0x0000000000400000-0x0000000000C6E000-memory.dmp

Filesize
8.4MB

Download
memory/5100-6-0x0000000000400000-0x0000000000C6E000-memory.dmp

Filesize
8.4MB

Download
memory/5100-7-0x0000000000400000-0x0000000000C6E000-memory.dmp

Filesize
8.4MB

Download
memory/5100-10-0x0000000000400000-0x0000000000C6E000-memory.dmp

Filesize
8.4MB

Download
memory/5100-0-0x0000000000400000-0x0000000000C6E000-memory.dmp

Filesize
8.4MB

Download
memory/5100-41-0x0000000000400000-0x0000000000C6E000-memory.dmp

Filesize
8.4MB

Download
memory/5100-2-0x0000000000401000-0x0000000000427000-memory.dmp

Filesize
152KB

Download
memory/5100-3-0x0000000000400000-0x0000000000C6E000-memory.dmp

Filesize
8.4MB

Download
memory/5100-19-0x0000000000400000-0x0000000000C6E000-memory.dmp

Filesize
8.4MB

Download
memory/5100-21-0x0000000000400000-0x0000000000C6E000-memory.dmp

Filesize
8.4MB

Download
memory/5100-1-0x00000000772D4000-0x00000000772D6000-memory.dmp

Filesize
8KB

Download
memory/5100-26-0x0000000000400000-0x0000000000C6E000-memory.dmp

Filesize
8.4MB

Download
memory/5100-31-0x0000000000400000-0x0000000000C6E000-memory.dmp

Filesize
8.4MB

Download
memory/5100-35-0x0000000000400000-0x0000000000C6E000-memory.dmp

Filesize
8.4MB

Download
memory/5100-16-0x0000000000401000-0x0000000000427000-memory.dmp

Filesize
152KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads