gcleaner | 7916df77ea1f8baceb087f3b8db9fe9e9aec0bd722367d9149ea8065a924e9f0

General

Target

7916df77ea1f8baceb087f3b8db9fe9e9aec0bd722367d9149ea8065a924e9f0.exe
Size

1.9MB
MD5

c0272feaecf4b83af2c37f44f2e03271
SHA1

540729fb378f1f1250652032e6ae74e9155f2d56
SHA256

7916df77ea1f8baceb087f3b8db9fe9e9aec0bd722367d9149ea8065a924e9f0
SHA512

99ca59c67c4e5634449ae9eeeb32b6a85df87d18f20aafa68e5bb439e618c4e560c00bff12582d89c55ef8bab2493b61c2c451477abb6e6e670fe496f935ee2a
SSDEEP

49152:cSxrcfLzimySipKrPHVH7jFfE79gk3QwnQDOF5zNfnxzM9q:cS6f3aSjl5K9gk3kiv+9

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__	7916df77ea1f8baceb087f3b8db9fe9e9aec0bd722367d9149ea8065a924e9f0.exe

Downloads MZ/PE file 1 IoCs

flow	pid	Process
15	2508	7916df77ea1f8baceb087f3b8db9fe9e9aec0bd722367d9149ea8065a924e9f0.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	7916df77ea1f8baceb087f3b8db9fe9e9aec0bd722367d9149ea8065a924e9f0.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	7916df77ea1f8baceb087f3b8db9fe9e9aec0bd722367d9149ea8065a924e9f0.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-1-5-21-3442511616-637977696-3186306149-1000\Software\Wine	7916df77ea1f8baceb087f3b8db9fe9e9aec0bd722367d9149ea8065a924e9f0.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

pid	Process
2508	7916df77ea1f8baceb087f3b8db9fe9e9aec0bd722367d9149ea8065a924e9f0.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
4820	2508	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	7916df77ea1f8baceb087f3b8db9fe9e9aec0bd722367d9149ea8065a924e9f0.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2508	7916df77ea1f8baceb087f3b8db9fe9e9aec0bd722367d9149ea8065a924e9f0.exe
2508	7916df77ea1f8baceb087f3b8db9fe9e9aec0bd722367d9149ea8065a924e9f0.exe

C:\Users\Admin\AppData\Local\Temp\7916df77ea1f8baceb087f3b8db9fe9e9aec0bd722367d9149ea8065a924e9f0.exe
"C:\Users\Admin\AppData\Local\Temp\7916df77ea1f8baceb087f3b8db9fe9e9aec0bd722367d9149ea8065a924e9f0.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:2508
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2508 -s 524
  2⤵
  - Program crash
  PID:4820

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 2508 -ip 2508
1⤵
PID:2496

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\0BHOTC3C\download[1].htm

Filesize
1B

MD5
cfcd208495d565ef66e7dff9f98764da

SHA1
b6589fc6ab0dc82cf12099d1c2d40ab994e8410c

SHA256
5feceb66ffc86f38d952786c6d696c79c2dbc239dd4e91b46729d73a27fb57e9

SHA512
31bca02094eb78126a517b206a88c73cfa9ec6f704c7030d18212cace820f025f00bf0ea68dbf3f3a5436ca63b53bf7bf80ad8d5de7d8359d0b7fed9dbc3ab99

Download Submit
memory/2508-15-0x0000000000400000-0x0000000000C66000-memory.dmp

Filesize
8.4MB

Download
memory/2508-20-0x0000000000400000-0x0000000000C66000-memory.dmp

Filesize
8.4MB

Download
memory/2508-2-0x0000000000401000-0x0000000000426000-memory.dmp

Filesize
148KB

Download
memory/2508-4-0x0000000000400000-0x0000000000C66000-memory.dmp

Filesize
8.4MB

Download
memory/2508-6-0x0000000000400000-0x0000000000C66000-memory.dmp

Filesize
8.4MB

Download
memory/2508-7-0x0000000000400000-0x0000000000C66000-memory.dmp

Filesize
8.4MB

Download
memory/2508-11-0x0000000010000000-0x000000001001C000-memory.dmp

Filesize
112KB

Download
memory/2508-0-0x0000000000400000-0x0000000000C66000-memory.dmp

Filesize
8.4MB

Download
memory/2508-3-0x0000000000400000-0x0000000000C66000-memory.dmp

Filesize
8.4MB

Download
memory/2508-17-0x0000000000401000-0x0000000000426000-memory.dmp

Filesize
148KB

Download
memory/2508-18-0x0000000000400000-0x0000000000C66000-memory.dmp

Filesize
8.4MB

Download
memory/2508-21-0x0000000000400000-0x0000000000C66000-memory.dmp

Filesize
8.4MB

Download
memory/2508-1-0x0000000077894000-0x0000000077896000-memory.dmp

Filesize
8KB

Download
memory/2508-23-0x0000000000400000-0x0000000000C66000-memory.dmp

Filesize
8.4MB

Download
memory/2508-27-0x0000000000400000-0x0000000000C66000-memory.dmp

Filesize
8.4MB

Download
memory/2508-34-0x0000000000400000-0x0000000000C66000-memory.dmp

Filesize
8.4MB

Download
memory/2508-42-0x0000000000401000-0x0000000000426000-memory.dmp

Filesize
148KB

Download
memory/2508-41-0x0000000000400000-0x0000000000C66000-memory.dmp

Filesize
8.4MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads