gcleaner | f71ba702ffee325caf7268958f4770527958aedb0f64838265da8dbfc2586765

General

Target

f71ba702ffee325caf7268958f4770527958aedb0f64838265da8dbfc2586765.exe
Size

1.8MB
MD5

dfa6afbb1a327845a9cbc90369b97c83
SHA1

62b6d452efb85cccdcca9ac7b1aa1bea1a675fef
SHA256

f71ba702ffee325caf7268958f4770527958aedb0f64838265da8dbfc2586765
SHA512

a4c2cf294701638d2a4c61a1e4b8ad59a9d72a7e405545fe455c14f5f4f9e6a3c77cef43ccbad43f7bfb8c061b373293e6e741ea39d1f15beafa9bb29b47fea5
SSDEEP

49152:3Ff8g52HCIDXtg9wGo1GLNtcYp9e9B0Wuayp3I4:VfTYCIDXe9wj1xAe9B0v

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__	f71ba702ffee325caf7268958f4770527958aedb0f64838265da8dbfc2586765.exe

Downloads MZ/PE file 1 IoCs

flow	pid	Process
15	1312	f71ba702ffee325caf7268958f4770527958aedb0f64838265da8dbfc2586765.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	f71ba702ffee325caf7268958f4770527958aedb0f64838265da8dbfc2586765.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	f71ba702ffee325caf7268958f4770527958aedb0f64838265da8dbfc2586765.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	f71ba702ffee325caf7268958f4770527958aedb0f64838265da8dbfc2586765.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

pid	Process
1312	f71ba702ffee325caf7268958f4770527958aedb0f64838265da8dbfc2586765.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
4828	1312	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	f71ba702ffee325caf7268958f4770527958aedb0f64838265da8dbfc2586765.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1312	f71ba702ffee325caf7268958f4770527958aedb0f64838265da8dbfc2586765.exe
1312	f71ba702ffee325caf7268958f4770527958aedb0f64838265da8dbfc2586765.exe

C:\Users\Admin\AppData\Local\Temp\f71ba702ffee325caf7268958f4770527958aedb0f64838265da8dbfc2586765.exe
"C:\Users\Admin\AppData\Local\Temp\f71ba702ffee325caf7268958f4770527958aedb0f64838265da8dbfc2586765.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:1312
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1312 -s 524
  2⤵
  - Program crash
  PID:4828

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 460 -p 1312 -ip 1312
1⤵
PID:2348

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/1312-15-0x0000000000400000-0x0000000000C5B000-memory.dmp

Filesize
8.4MB

Download
memory/1312-20-0x0000000000400000-0x0000000000C5B000-memory.dmp

Filesize
8.4MB

Download
memory/1312-2-0x0000000000401000-0x0000000000426000-memory.dmp

Filesize
148KB

Download
memory/1312-4-0x0000000000400000-0x0000000000C5B000-memory.dmp

Filesize
8.4MB

Download
memory/1312-6-0x0000000000400000-0x0000000000C5B000-memory.dmp

Filesize
8.4MB

Download
memory/1312-7-0x0000000000400000-0x0000000000C5B000-memory.dmp

Filesize
8.4MB

Download
memory/1312-11-0x0000000010000000-0x000000001001C000-memory.dmp

Filesize
112KB

Download
memory/1312-0-0x0000000000400000-0x0000000000C5B000-memory.dmp

Filesize
8.4MB

Download
memory/1312-3-0x0000000000400000-0x0000000000C5B000-memory.dmp

Filesize
8.4MB

Download
memory/1312-17-0x0000000000401000-0x0000000000426000-memory.dmp

Filesize
148KB

Download
memory/1312-18-0x0000000000400000-0x0000000000C5B000-memory.dmp

Filesize
8.4MB

Download
memory/1312-21-0x0000000000400000-0x0000000000C5B000-memory.dmp

Filesize
8.4MB

Download
memory/1312-1-0x0000000077CD4000-0x0000000077CD6000-memory.dmp

Filesize
8KB

Download
memory/1312-23-0x0000000000400000-0x0000000000C5B000-memory.dmp

Filesize
8.4MB

Download
memory/1312-28-0x0000000000400000-0x0000000000C5B000-memory.dmp

Filesize
8.4MB

Download
memory/1312-34-0x0000000000400000-0x0000000000C5B000-memory.dmp

Filesize
8.4MB

Download
memory/1312-40-0x0000000000400000-0x0000000000C5B000-memory.dmp

Filesize
8.4MB

Download
memory/1312-41-0x0000000000401000-0x0000000000426000-memory.dmp

Filesize
148KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads