gcleaner | acd7472c40ccdf452aa32d4fcc12c5627b00864350a3a40e3a8e02ee1b4d0a31

General

Target

acd7472c40ccdf452aa32d4fcc12c5627b00864350a3a40e3a8e02ee1b4d0a31.exe
Size

1.8MB
MD5

c7e475c56de645013c5e43b01cc22456
SHA1

8f419c459f8d282cbafc8072d34d2f8bc138e5fe
SHA256

acd7472c40ccdf452aa32d4fcc12c5627b00864350a3a40e3a8e02ee1b4d0a31
SHA512

a9aaa0be2411298ef3d51597bfb984758d73be463e0d9af8858f75e458fa598585df5df83e6601e66df3560bda0c4835f86163e0262af76b0953c21ff7e0c4f6
SSDEEP

24576:P5gfkwWzKcvV5iQuURbLW8xxdHCd5sApkEtgOVp+Ix2mgtvXOtiyqSyBSReFBUAx:P5gcpXDuURba8NwtftH5kyqhBAUWHeF

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__	acd7472c40ccdf452aa32d4fcc12c5627b00864350a3a40e3a8e02ee1b4d0a31.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	acd7472c40ccdf452aa32d4fcc12c5627b00864350a3a40e3a8e02ee1b4d0a31.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	acd7472c40ccdf452aa32d4fcc12c5627b00864350a3a40e3a8e02ee1b4d0a31.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-1-5-21-3227495264-2217614367-4027411560-1000\Software\Wine	acd7472c40ccdf452aa32d4fcc12c5627b00864350a3a40e3a8e02ee1b4d0a31.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

pid	Process
4000	acd7472c40ccdf452aa32d4fcc12c5627b00864350a3a40e3a8e02ee1b4d0a31.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
2444	4000	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	acd7472c40ccdf452aa32d4fcc12c5627b00864350a3a40e3a8e02ee1b4d0a31.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
4000	acd7472c40ccdf452aa32d4fcc12c5627b00864350a3a40e3a8e02ee1b4d0a31.exe
4000	acd7472c40ccdf452aa32d4fcc12c5627b00864350a3a40e3a8e02ee1b4d0a31.exe

C:\Users\Admin\AppData\Local\Temp\acd7472c40ccdf452aa32d4fcc12c5627b00864350a3a40e3a8e02ee1b4d0a31.exe
"C:\Users\Admin\AppData\Local\Temp\acd7472c40ccdf452aa32d4fcc12c5627b00864350a3a40e3a8e02ee1b4d0a31.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:4000
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4000 -s 1568
  2⤵
  - Program crash
  PID:2444

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 460 -p 4000 -ip 4000
1⤵
PID:3616

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/4000-12-0x0000000010000000-0x000000001001C000-memory.dmp

Filesize
112KB

Download
memory/4000-6-0x0000000000400000-0x0000000000C5E000-memory.dmp

Filesize
8.4MB

Download
memory/4000-16-0x0000000000401000-0x0000000000426000-memory.dmp

Filesize
148KB

Download
memory/4000-4-0x0000000000400000-0x0000000000C5E000-memory.dmp

Filesize
8.4MB

Download
memory/4000-17-0x0000000000400000-0x0000000000C5E000-memory.dmp

Filesize
8.4MB

Download
memory/4000-7-0x0000000000400000-0x0000000000C5E000-memory.dmp

Filesize
8.4MB

Download
memory/4000-10-0x0000000000400000-0x0000000000C5E000-memory.dmp

Filesize
8.4MB

Download
memory/4000-19-0x0000000000400000-0x0000000000C5E000-memory.dmp

Filesize
8.4MB

Download
memory/4000-3-0x0000000000400000-0x0000000000C5E000-memory.dmp

Filesize
8.4MB

Download
memory/4000-2-0x0000000000401000-0x0000000000426000-memory.dmp

Filesize
148KB

Download
memory/4000-0-0x0000000000400000-0x0000000000C5E000-memory.dmp

Filesize
8.4MB

Download
memory/4000-20-0x0000000000400000-0x0000000000C5E000-memory.dmp

Filesize
8.4MB

Download
memory/4000-1-0x0000000077384000-0x0000000077386000-memory.dmp

Filesize
8KB

Download
memory/4000-26-0x0000000000400000-0x0000000000C5E000-memory.dmp

Filesize
8.4MB

Download
memory/4000-31-0x0000000000400000-0x0000000000C5E000-memory.dmp

Filesize
8.4MB

Download
memory/4000-39-0x0000000000400000-0x0000000000C5E000-memory.dmp

Filesize
8.4MB

Download
memory/4000-40-0x0000000000401000-0x0000000000426000-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