gcleaner | dbfc0265fc606666bbaf8f19039c4379d9162b8e054f027d92cc5fc37ae24014

General

Target

dbfc0265fc606666bbaf8f19039c4379d9162b8e054f027d92cc5fc37ae24014.exe
Size

4.5MB
MD5

b8da2f55ca578f647135dd07ea121fca
SHA1

01daf1ccd90745fb6e6dc77fbb18adf87779573c
SHA256

dbfc0265fc606666bbaf8f19039c4379d9162b8e054f027d92cc5fc37ae24014
SHA512

3a336ad990b3b14157199321c7ad980d06a412005a7fcdd1cf4fcece48fbefbf0ae845c384678f290b53b619ecd1587070359fbf010248c2f9907e2bb1422605
SSDEEP

98304:/NF/JNYIJfSZXTluNtdkoiwiioPme/dgSXkzL1dDLp:/0IMzQ/M7i4mSUv1NL

Score

10^/10

gcleaner defense_evasion discovery loader

Malware Config

Extracted

Family

gcleaner

C2

185.156.73.73

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__	dbfc0265fc606666bbaf8f19039c4379d9162b8e054f027d92cc5fc37ae24014.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	dbfc0265fc606666bbaf8f19039c4379d9162b8e054f027d92cc5fc37ae24014.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	dbfc0265fc606666bbaf8f19039c4379d9162b8e054f027d92cc5fc37ae24014.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-1-5-21-814918696-1585701690-3140955116-1000\Software\Wine	dbfc0265fc606666bbaf8f19039c4379d9162b8e054f027d92cc5fc37ae24014.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

pid	Process
2724	dbfc0265fc606666bbaf8f19039c4379d9162b8e054f027d92cc5fc37ae24014.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2724 set thread context of 5856	2724	dbfc0265fc606666bbaf8f19039c4379d9162b8e054f027d92cc5fc37ae24014.exe	94

System Location Discovery: System Language Discovery 1 TTPs 2 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	dbfc0265fc606666bbaf8f19039c4379d9162b8e054f027d92cc5fc37ae24014.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	BitLockerToGo.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2724	dbfc0265fc606666bbaf8f19039c4379d9162b8e054f027d92cc5fc37ae24014.exe
2724	dbfc0265fc606666bbaf8f19039c4379d9162b8e054f027d92cc5fc37ae24014.exe

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 2724 wrote to memory of 5856	2724	dbfc0265fc606666bbaf8f19039c4379d9162b8e054f027d92cc5fc37ae24014.exe	94
PID 2724 wrote to memory of 5856	2724	dbfc0265fc606666bbaf8f19039c4379d9162b8e054f027d92cc5fc37ae24014.exe	94
PID 2724 wrote to memory of 5856	2724	dbfc0265fc606666bbaf8f19039c4379d9162b8e054f027d92cc5fc37ae24014.exe	94
PID 2724 wrote to memory of 5856	2724	dbfc0265fc606666bbaf8f19039c4379d9162b8e054f027d92cc5fc37ae24014.exe	94
PID 2724 wrote to memory of 5856	2724	dbfc0265fc606666bbaf8f19039c4379d9162b8e054f027d92cc5fc37ae24014.exe	94
PID 2724 wrote to memory of 5856	2724	dbfc0265fc606666bbaf8f19039c4379d9162b8e054f027d92cc5fc37ae24014.exe	94
PID 2724 wrote to memory of 5856	2724	dbfc0265fc606666bbaf8f19039c4379d9162b8e054f027d92cc5fc37ae24014.exe	94
PID 2724 wrote to memory of 5856	2724	dbfc0265fc606666bbaf8f19039c4379d9162b8e054f027d92cc5fc37ae24014.exe	94
PID 2724 wrote to memory of 5856	2724	dbfc0265fc606666bbaf8f19039c4379d9162b8e054f027d92cc5fc37ae24014.exe	94
PID 2724 wrote to memory of 5856	2724	dbfc0265fc606666bbaf8f19039c4379d9162b8e054f027d92cc5fc37ae24014.exe	94

C:\Users\Admin\AppData\Local\Temp\dbfc0265fc606666bbaf8f19039c4379d9162b8e054f027d92cc5fc37ae24014.exe
"C:\Users\Admin\AppData\Local\Temp\dbfc0265fc606666bbaf8f19039c4379d9162b8e054f027d92cc5fc37ae24014.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
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:2724
- C:\Windows\BitLockerDiscoveryVolumeContents\BitLockerToGo.exe
  "C:\Windows\BitLockerDiscoveryVolumeContents\BitLockerToGo.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  PID:5856

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

1

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

memory/2724-6-0x0000000000B70000-0x00000000017B1000-memory.dmp

Filesize
12.3MB

Download
memory/2724-10-0x0000000000B70000-0x00000000017B1000-memory.dmp

Filesize
12.3MB

Download
memory/2724-2-0x0000000000B71000-0x0000000000E27000-memory.dmp

Filesize
2.7MB

Download
memory/2724-3-0x0000000000B70000-0x00000000017B1000-memory.dmp

Filesize
12.3MB

Download
memory/2724-4-0x0000000000B70000-0x00000000017B1000-memory.dmp

Filesize
12.3MB

Download
memory/2724-5-0x0000000000B70000-0x00000000017B1000-memory.dmp

Filesize
12.3MB

Download
memory/2724-7-0x0000000000B70000-0x00000000017B1000-memory.dmp

Filesize
12.3MB

Download
memory/2724-0-0x0000000000B70000-0x00000000017B1000-memory.dmp

Filesize
12.3MB

Download
memory/2724-1-0x0000000077744000-0x0000000077746000-memory.dmp

Filesize
8KB

Download
memory/5856-9-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/5856-11-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/5856-12-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/5856-8-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/5856-13-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads