gcleaner | d3a2826492bfcf84e775bfc185033ecd34cb374cd7ea31a35188957501f394bd

General

Target

d3a2826492bfcf84e775bfc185033ecd34cb374cd7ea31a35188957501f394bd.exe
Size

1.9MB
MD5

019e86910ed71e979bc9f08877bc950d
SHA1

d98da51af5c79925bbc3e735189990137b01252e
SHA256

d3a2826492bfcf84e775bfc185033ecd34cb374cd7ea31a35188957501f394bd
SHA512

65d8fedfa3c6b4ee4dc80f626513af7e42f7f4659978caa8e09b2fb3250b809c4a2822265d9cdd83b5266278c495a400ae79e1871b5316a1b1f4f7103b57c0f3
SSDEEP

49152:tR2HZx3dkS+lbwG0fa0SjHNn6dt7g99x:tsj34tqXz7Kr

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__	d3a2826492bfcf84e775bfc185033ecd34cb374cd7ea31a35188957501f394bd.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	d3a2826492bfcf84e775bfc185033ecd34cb374cd7ea31a35188957501f394bd.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	d3a2826492bfcf84e775bfc185033ecd34cb374cd7ea31a35188957501f394bd.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-1-5-21-940901362-3608833189-1915618603-1000\Software\Wine	d3a2826492bfcf84e775bfc185033ecd34cb374cd7ea31a35188957501f394bd.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

pid	Process
1724	d3a2826492bfcf84e775bfc185033ecd34cb374cd7ea31a35188957501f394bd.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
4176	1724	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	d3a2826492bfcf84e775bfc185033ecd34cb374cd7ea31a35188957501f394bd.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1724	d3a2826492bfcf84e775bfc185033ecd34cb374cd7ea31a35188957501f394bd.exe
1724	d3a2826492bfcf84e775bfc185033ecd34cb374cd7ea31a35188957501f394bd.exe

C:\Users\Admin\AppData\Local\Temp\d3a2826492bfcf84e775bfc185033ecd34cb374cd7ea31a35188957501f394bd.exe
"C:\Users\Admin\AppData\Local\Temp\d3a2826492bfcf84e775bfc185033ecd34cb374cd7ea31a35188957501f394bd.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:1724
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1724 -s 644
  2⤵
  - Program crash
  PID:4176

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 1724 -ip 1724
1⤵
PID:400

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\XH3Z2ZON\download[1].htm

Filesize
1B

MD5
cfcd208495d565ef66e7dff9f98764da

SHA1
b6589fc6ab0dc82cf12099d1c2d40ab994e8410c

SHA256
5feceb66ffc86f38d952786c6d696c79c2dbc239dd4e91b46729d73a27fb57e9

SHA512
31bca02094eb78126a517b206a88c73cfa9ec6f704c7030d18212cace820f025f00bf0ea68dbf3f3a5436ca63b53bf7bf80ad8d5de7d8359d0b7fed9dbc3ab99

Download Submit
memory/1724-15-0x0000000000400000-0x0000000000C5B000-memory.dmp

Filesize
8.4MB

Download
memory/1724-11-0x0000000010000000-0x000000001001C000-memory.dmp

Filesize
112KB

Download
memory/1724-3-0x0000000000400000-0x0000000000C5B000-memory.dmp

Filesize
8.4MB

Download
memory/1724-4-0x0000000000400000-0x0000000000C5B000-memory.dmp

Filesize
8.4MB

Download
memory/1724-18-0x0000000000401000-0x0000000000427000-memory.dmp

Filesize
152KB

Download
memory/1724-7-0x0000000000400000-0x0000000000C5B000-memory.dmp

Filesize
8.4MB

Download
memory/1724-2-0x0000000000401000-0x0000000000427000-memory.dmp

Filesize
152KB

Download
memory/1724-0-0x0000000000400000-0x0000000000C5B000-memory.dmp

Filesize
8.4MB

Download
memory/1724-6-0x0000000000400000-0x0000000000C5B000-memory.dmp

Filesize
8.4MB

Download
memory/1724-19-0x0000000000400000-0x0000000000C5B000-memory.dmp

Filesize
8.4MB

Download
memory/1724-20-0x0000000000400000-0x0000000000C5B000-memory.dmp

Filesize
8.4MB

Download
memory/1724-21-0x0000000000400000-0x0000000000C5B000-memory.dmp

Filesize
8.4MB

Download
memory/1724-1-0x0000000077544000-0x0000000077546000-memory.dmp

Filesize
8KB

Download
memory/1724-23-0x0000000000400000-0x0000000000C5B000-memory.dmp

Filesize
8.4MB

Download
memory/1724-28-0x0000000000400000-0x0000000000C5B000-memory.dmp

Filesize
8.4MB

Download
memory/1724-39-0x0000000000400000-0x0000000000C5B000-memory.dmp

Filesize
8.4MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads