gcleaner | 7b4e6405c1bfc74aaac00a4e11daa80f81c6d3007497f957a051b60bb3dee9db

General

Target

7b4e6405c1bfc74aaac00a4e11daa80f81c6d3007497f957a051b60bb3dee9db.exe
Size

1.9MB
MD5

19e408ce25a472966111747d56d2d646
SHA1

bf213a85f5ff663b29c0dd247900d80a82b20144
SHA256

7b4e6405c1bfc74aaac00a4e11daa80f81c6d3007497f957a051b60bb3dee9db
SHA512

edfe16afd07ec7978e819c8d07429086805dd7e090871eafe308c3697bd930e9c3d5076598039348e4480ed29d16e1173e018bea4d7d83f668cdbd7d82a8034c
SSDEEP

49152:PsjUV80nskSYmRMllKQRIY37he1CnyO8lMUCXXjr:PsjWXnMA2YLhekAs

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__	7b4e6405c1bfc74aaac00a4e11daa80f81c6d3007497f957a051b60bb3dee9db.exe

Downloads MZ/PE file 1 IoCs

flow	pid	Process
15	2180	7b4e6405c1bfc74aaac00a4e11daa80f81c6d3007497f957a051b60bb3dee9db.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	7b4e6405c1bfc74aaac00a4e11daa80f81c6d3007497f957a051b60bb3dee9db.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	7b4e6405c1bfc74aaac00a4e11daa80f81c6d3007497f957a051b60bb3dee9db.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-1-5-21-1045960512-3948844814-3059691613-1000\Software\Wine	7b4e6405c1bfc74aaac00a4e11daa80f81c6d3007497f957a051b60bb3dee9db.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

pid	Process
2180	7b4e6405c1bfc74aaac00a4e11daa80f81c6d3007497f957a051b60bb3dee9db.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
1932	2180	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	7b4e6405c1bfc74aaac00a4e11daa80f81c6d3007497f957a051b60bb3dee9db.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2180	7b4e6405c1bfc74aaac00a4e11daa80f81c6d3007497f957a051b60bb3dee9db.exe
2180	7b4e6405c1bfc74aaac00a4e11daa80f81c6d3007497f957a051b60bb3dee9db.exe

C:\Users\Admin\AppData\Local\Temp\7b4e6405c1bfc74aaac00a4e11daa80f81c6d3007497f957a051b60bb3dee9db.exe
"C:\Users\Admin\AppData\Local\Temp\7b4e6405c1bfc74aaac00a4e11daa80f81c6d3007497f957a051b60bb3dee9db.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:2180
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2180 -s 636
  2⤵
  - Program crash
  PID:1932

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 472 -p 2180 -ip 2180
1⤵
PID:5040

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\9MFSIIMR\download[1].htm

Filesize
1B

MD5
cfcd208495d565ef66e7dff9f98764da

SHA1
b6589fc6ab0dc82cf12099d1c2d40ab994e8410c

SHA256
5feceb66ffc86f38d952786c6d696c79c2dbc239dd4e91b46729d73a27fb57e9

SHA512
31bca02094eb78126a517b206a88c73cfa9ec6f704c7030d18212cace820f025f00bf0ea68dbf3f3a5436ca63b53bf7bf80ad8d5de7d8359d0b7fed9dbc3ab99

Download Submit
memory/2180-15-0x0000000000400000-0x0000000000C62000-memory.dmp

Filesize
8.4MB

Download
memory/2180-20-0x0000000000400000-0x0000000000C62000-memory.dmp

Filesize
8.4MB

Download
memory/2180-2-0x0000000000401000-0x0000000000426000-memory.dmp

Filesize
148KB

Download
memory/2180-4-0x0000000000400000-0x0000000000C62000-memory.dmp

Filesize
8.4MB

Download
memory/2180-6-0x0000000000400000-0x0000000000C62000-memory.dmp

Filesize
8.4MB

Download
memory/2180-7-0x0000000000400000-0x0000000000C62000-memory.dmp

Filesize
8.4MB

Download
memory/2180-11-0x0000000010000000-0x000000001001C000-memory.dmp

Filesize
112KB

Download
memory/2180-0-0x0000000000400000-0x0000000000C62000-memory.dmp

Filesize
8.4MB

Download
memory/2180-3-0x0000000000400000-0x0000000000C62000-memory.dmp

Filesize
8.4MB

Download
memory/2180-17-0x0000000000401000-0x0000000000426000-memory.dmp

Filesize
148KB

Download
memory/2180-18-0x0000000000400000-0x0000000000C62000-memory.dmp

Filesize
8.4MB

Download
memory/2180-21-0x0000000000400000-0x0000000000C62000-memory.dmp

Filesize
8.4MB

Download
memory/2180-1-0x0000000077B64000-0x0000000077B66000-memory.dmp

Filesize
8KB

Download
memory/2180-23-0x0000000000400000-0x0000000000C62000-memory.dmp

Filesize
8.4MB

Download
memory/2180-28-0x0000000000400000-0x0000000000C62000-memory.dmp

Filesize
8.4MB

Download
memory/2180-34-0x0000000000400000-0x0000000000C62000-memory.dmp

Filesize
8.4MB

Download
memory/2180-40-0x0000000000400000-0x0000000000C62000-memory.dmp

Filesize
8.4MB

Download
memory/2180-41-0x0000000000401000-0x0000000000426000-memory.dmp

Filesize
148KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads