gcleaner | 56dafbba12a48578dc834632caa40dd7a96fa04fe04a7cae87f60f960043c2d9

General

Target

56dafbba12a48578dc834632caa40dd7a96fa04fe04a7cae87f60f960043c2d9.exe
Size

1.9MB
MD5

4f5013c5d4c13bcb3d9bb98ac601d056
SHA1

8a4862ee54fae9df6ae6a8d2616b0d9d021b4fbd
SHA256

56dafbba12a48578dc834632caa40dd7a96fa04fe04a7cae87f60f960043c2d9
SHA512

cbfc65a34b1052e165677807f4a74aaeb7b14bf6e942ceaaf8b6ca2bf4f03dfd1878def3b31446e4910651971b3a3a4c0de40120d2a57a0e67e1b232e9b3ea82
SSDEEP

49152:0Z7JUUPG9T4zOtKq2HydWyAjHWlP9O0C4drUzR4T+:0tPG9FXEyAEFtdrq4T+

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__	56dafbba12a48578dc834632caa40dd7a96fa04fe04a7cae87f60f960043c2d9.exe

Downloads MZ/PE file 1 IoCs

flow	pid	Process
14	4952	56dafbba12a48578dc834632caa40dd7a96fa04fe04a7cae87f60f960043c2d9.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	56dafbba12a48578dc834632caa40dd7a96fa04fe04a7cae87f60f960043c2d9.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	56dafbba12a48578dc834632caa40dd7a96fa04fe04a7cae87f60f960043c2d9.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-1-5-21-3227495264-2217614367-4027411560-1000\Software\Wine	56dafbba12a48578dc834632caa40dd7a96fa04fe04a7cae87f60f960043c2d9.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

pid	Process
4952	56dafbba12a48578dc834632caa40dd7a96fa04fe04a7cae87f60f960043c2d9.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
2012	4952	WerFault.exe	81

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	56dafbba12a48578dc834632caa40dd7a96fa04fe04a7cae87f60f960043c2d9.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
4952	56dafbba12a48578dc834632caa40dd7a96fa04fe04a7cae87f60f960043c2d9.exe
4952	56dafbba12a48578dc834632caa40dd7a96fa04fe04a7cae87f60f960043c2d9.exe

C:\Users\Admin\AppData\Local\Temp\56dafbba12a48578dc834632caa40dd7a96fa04fe04a7cae87f60f960043c2d9.exe
"C:\Users\Admin\AppData\Local\Temp\56dafbba12a48578dc834632caa40dd7a96fa04fe04a7cae87f60f960043c2d9.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:4952
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4952 -s 636
  2⤵
  - Program crash
  PID:2012

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 440 -p 4952 -ip 4952
1⤵
PID:4472

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\FQRZN8O7\download[1].htm

Filesize
1B

MD5
cfcd208495d565ef66e7dff9f98764da

SHA1
b6589fc6ab0dc82cf12099d1c2d40ab994e8410c

SHA256
5feceb66ffc86f38d952786c6d696c79c2dbc239dd4e91b46729d73a27fb57e9

SHA512
31bca02094eb78126a517b206a88c73cfa9ec6f704c7030d18212cace820f025f00bf0ea68dbf3f3a5436ca63b53bf7bf80ad8d5de7d8359d0b7fed9dbc3ab99

Download Submit
memory/4952-11-0x0000000000400000-0x0000000000C6E000-memory.dmp

Filesize
8.4MB

Download
memory/4952-19-0x0000000000400000-0x0000000000C6E000-memory.dmp

Filesize
8.4MB

Download
memory/4952-4-0x0000000000400000-0x0000000000C6E000-memory.dmp

Filesize
8.4MB

Download
memory/4952-3-0x0000000000400000-0x0000000000C6E000-memory.dmp

Filesize
8.4MB

Download
memory/4952-6-0x0000000000400000-0x0000000000C6E000-memory.dmp

Filesize
8.4MB

Download
memory/4952-7-0x0000000000400000-0x0000000000C6E000-memory.dmp

Filesize
8.4MB

Download
memory/4952-8-0x0000000000400000-0x0000000000C6E000-memory.dmp

Filesize
8.4MB

Download
memory/4952-0-0x0000000000400000-0x0000000000C6E000-memory.dmp

Filesize
8.4MB

Download
memory/4952-2-0x0000000000401000-0x0000000000426000-memory.dmp

Filesize
148KB

Download
memory/4952-13-0x0000000010000000-0x000000001001C000-memory.dmp

Filesize
112KB

Download
memory/4952-18-0x0000000000401000-0x0000000000426000-memory.dmp

Filesize
148KB

Download
memory/4952-21-0x0000000000400000-0x0000000000C6E000-memory.dmp

Filesize
8.4MB

Download
memory/4952-22-0x0000000000400000-0x0000000000C6E000-memory.dmp

Filesize
8.4MB

Download
memory/4952-1-0x0000000077154000-0x0000000077156000-memory.dmp

Filesize
8KB

Download
memory/4952-24-0x0000000000400000-0x0000000000C6E000-memory.dmp

Filesize
8.4MB

Download
memory/4952-29-0x0000000000400000-0x0000000000C6E000-memory.dmp

Filesize
8.4MB

Download
memory/4952-40-0x0000000000400000-0x0000000000C6E000-memory.dmp

Filesize
8.4MB

Download
memory/4952-42-0x0000000000401000-0x0000000000426000-memory.dmp

Filesize
148KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads