gcleaner | ab29df01c919e5e8ed10cbe44b5c4fffbe65728866ea4e464c8ad057beb69914

General

Target

ab29df01c919e5e8ed10cbe44b5c4fffbe65728866ea4e464c8ad057beb69914.exe
Size

1.9MB
MD5

2ba992bd3208a372c1bac4e4361445cc
SHA1

dcc783f521217c1f10d14d075e27aebeb972ac68
SHA256

ab29df01c919e5e8ed10cbe44b5c4fffbe65728866ea4e464c8ad057beb69914
SHA512

c573b25e388c2d1d3cd41382050844f2d45e08c110d38962a800b368d8be14b111915a78282fef0d6490b2bd25e4350f3641ee2c9bfad9670e23503bfe12e161
SSDEEP

49152:fK/4Gv6USodon/j9hhaQvDxPuqbEdWxRyQZkna3L5NVI71B:S/4Gv1onr9rrx2qbE44okna75W1B

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__	ab29df01c919e5e8ed10cbe44b5c4fffbe65728866ea4e464c8ad057beb69914.exe

Downloads MZ/PE file 1 IoCs

flow	pid	Process
15	2376	ab29df01c919e5e8ed10cbe44b5c4fffbe65728866ea4e464c8ad057beb69914.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	ab29df01c919e5e8ed10cbe44b5c4fffbe65728866ea4e464c8ad057beb69914.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	ab29df01c919e5e8ed10cbe44b5c4fffbe65728866ea4e464c8ad057beb69914.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-1-5-21-2045521122-590294423-3465680274-1000\Software\Wine	ab29df01c919e5e8ed10cbe44b5c4fffbe65728866ea4e464c8ad057beb69914.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

pid	Process
2376	ab29df01c919e5e8ed10cbe44b5c4fffbe65728866ea4e464c8ad057beb69914.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
2740	2376	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	ab29df01c919e5e8ed10cbe44b5c4fffbe65728866ea4e464c8ad057beb69914.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2376	ab29df01c919e5e8ed10cbe44b5c4fffbe65728866ea4e464c8ad057beb69914.exe
2376	ab29df01c919e5e8ed10cbe44b5c4fffbe65728866ea4e464c8ad057beb69914.exe

C:\Users\Admin\AppData\Local\Temp\ab29df01c919e5e8ed10cbe44b5c4fffbe65728866ea4e464c8ad057beb69914.exe
"C:\Users\Admin\AppData\Local\Temp\ab29df01c919e5e8ed10cbe44b5c4fffbe65728866ea4e464c8ad057beb69914.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:2376
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2376 -s 1412
  2⤵
  - Program crash
  PID:2740

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 464 -p 2376 -ip 2376
1⤵
PID:4868

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\6IJLDY7V\download[1].htm

Filesize
1B

MD5
cfcd208495d565ef66e7dff9f98764da

SHA1
b6589fc6ab0dc82cf12099d1c2d40ab994e8410c

SHA256
5feceb66ffc86f38d952786c6d696c79c2dbc239dd4e91b46729d73a27fb57e9

SHA512
31bca02094eb78126a517b206a88c73cfa9ec6f704c7030d18212cace820f025f00bf0ea68dbf3f3a5436ca63b53bf7bf80ad8d5de7d8359d0b7fed9dbc3ab99

Download Submit
memory/2376-2-0x0000000000401000-0x0000000000426000-memory.dmp

Filesize
148KB

Download
memory/2376-18-0x0000000000400000-0x0000000000C70000-memory.dmp

Filesize
8.4MB

Download
memory/2376-3-0x0000000000400000-0x0000000000C70000-memory.dmp

Filesize
8.4MB

Download
memory/2376-0-0x0000000000400000-0x0000000000C70000-memory.dmp

Filesize
8.4MB

Download
memory/2376-6-0x0000000000400000-0x0000000000C70000-memory.dmp

Filesize
8.4MB

Download
memory/2376-7-0x0000000000400000-0x0000000000C70000-memory.dmp

Filesize
8.4MB

Download
memory/2376-11-0x0000000010000000-0x000000001001C000-memory.dmp

Filesize
112KB

Download
memory/2376-15-0x0000000000400000-0x0000000000C70000-memory.dmp

Filesize
8.4MB

Download
memory/2376-4-0x0000000000400000-0x0000000000C70000-memory.dmp

Filesize
8.4MB

Download
memory/2376-20-0x0000000000400000-0x0000000000C70000-memory.dmp

Filesize
8.4MB

Download
memory/2376-17-0x0000000000401000-0x0000000000426000-memory.dmp

Filesize
148KB

Download
memory/2376-1-0x0000000077E14000-0x0000000077E16000-memory.dmp

Filesize
8KB

Download
memory/2376-22-0x0000000000400000-0x0000000000C70000-memory.dmp

Filesize
8.4MB

Download
memory/2376-27-0x0000000000400000-0x0000000000C70000-memory.dmp

Filesize
8.4MB

Download
memory/2376-33-0x0000000000400000-0x0000000000C70000-memory.dmp

Filesize
8.4MB

Download
memory/2376-39-0x0000000000400000-0x0000000000C70000-memory.dmp

Filesize
8.4MB

Download
memory/2376-40-0x0000000000401000-0x0000000000426000-memory.dmp

Filesize
148KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads