gcleaner | 48e56aa0eb3e20765f9626e560974f4845d142c0c7ebaaf9e00aa4a251f41ee2

General

Target

48e56aa0eb3e20765f9626e560974f4845d142c0c7ebaaf9e00aa4a251f41ee2.exe
Size

1.8MB
MD5

5dba80b5b0f1ef6010548f776971d72b
SHA1

03e7bc70278a83c354e38f81f6672fcabbd37d18
SHA256

48e56aa0eb3e20765f9626e560974f4845d142c0c7ebaaf9e00aa4a251f41ee2
SHA512

47c60ddc6883e5a46df47412c615403ed30970d6c83c81c543a8889ee7c98e40d193cc545ec8e48d759997d4a25f8a41a0a193e2f7b7ee2a42c4ffe47ce4db09
SSDEEP

24576:z0p0l313eV05hbQP2u0iXkQylAgna7+C5ZHAzGAayRCs8NKkju3gU1IcbaWPowPV:pL3005hbQPlHgn++szUEsuKx3gAt/6

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__	48e56aa0eb3e20765f9626e560974f4845d142c0c7ebaaf9e00aa4a251f41ee2.exe

Downloads MZ/PE file 1 IoCs

flow	pid	Process
14	3440	48e56aa0eb3e20765f9626e560974f4845d142c0c7ebaaf9e00aa4a251f41ee2.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	48e56aa0eb3e20765f9626e560974f4845d142c0c7ebaaf9e00aa4a251f41ee2.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	48e56aa0eb3e20765f9626e560974f4845d142c0c7ebaaf9e00aa4a251f41ee2.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-1-5-21-2437139445-1151884604-3026847218-1000\Software\Wine	48e56aa0eb3e20765f9626e560974f4845d142c0c7ebaaf9e00aa4a251f41ee2.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

pid	Process
3440	48e56aa0eb3e20765f9626e560974f4845d142c0c7ebaaf9e00aa4a251f41ee2.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
1104	3440	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	48e56aa0eb3e20765f9626e560974f4845d142c0c7ebaaf9e00aa4a251f41ee2.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
3440	48e56aa0eb3e20765f9626e560974f4845d142c0c7ebaaf9e00aa4a251f41ee2.exe
3440	48e56aa0eb3e20765f9626e560974f4845d142c0c7ebaaf9e00aa4a251f41ee2.exe

C:\Users\Admin\AppData\Local\Temp\48e56aa0eb3e20765f9626e560974f4845d142c0c7ebaaf9e00aa4a251f41ee2.exe
"C:\Users\Admin\AppData\Local\Temp\48e56aa0eb3e20765f9626e560974f4845d142c0c7ebaaf9e00aa4a251f41ee2.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:3440
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3440 -s 1448
  2⤵
  - Program crash
  PID:1104

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 440 -p 3440 -ip 3440
1⤵
PID:2448

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

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\M6JHG9EK\download[1].htm

Filesize
1B

MD5
cfcd208495d565ef66e7dff9f98764da

SHA1
b6589fc6ab0dc82cf12099d1c2d40ab994e8410c

SHA256
5feceb66ffc86f38d952786c6d696c79c2dbc239dd4e91b46729d73a27fb57e9

SHA512
31bca02094eb78126a517b206a88c73cfa9ec6f704c7030d18212cace820f025f00bf0ea68dbf3f3a5436ca63b53bf7bf80ad8d5de7d8359d0b7fed9dbc3ab99

Download Submit
memory/3440-15-0x0000000000400000-0x0000000000C53000-memory.dmp

Filesize
8.3MB

Download
memory/3440-18-0x0000000000400000-0x0000000000C53000-memory.dmp

Filesize
8.3MB

Download
memory/3440-2-0x0000000000401000-0x0000000000426000-memory.dmp

Filesize
148KB

Download
memory/3440-4-0x0000000000400000-0x0000000000C53000-memory.dmp

Filesize
8.3MB

Download
memory/3440-6-0x0000000000400000-0x0000000000C53000-memory.dmp

Filesize
8.3MB

Download
memory/3440-7-0x0000000000400000-0x0000000000C53000-memory.dmp

Filesize
8.3MB

Download
memory/3440-11-0x0000000010000000-0x000000001001C000-memory.dmp

Filesize
112KB

Download
memory/3440-0-0x0000000000400000-0x0000000000C53000-memory.dmp

Filesize
8.3MB

Download
memory/3440-3-0x0000000000400000-0x0000000000C53000-memory.dmp

Filesize
8.3MB

Download
memory/3440-20-0x0000000000400000-0x0000000000C53000-memory.dmp

Filesize
8.3MB

Download
memory/3440-17-0x0000000000401000-0x0000000000426000-memory.dmp

Filesize
148KB

Download
memory/3440-21-0x0000000000400000-0x0000000000C53000-memory.dmp

Filesize
8.3MB

Download
memory/3440-1-0x0000000077074000-0x0000000077076000-memory.dmp

Filesize
8KB

Download
memory/3440-27-0x0000000000400000-0x0000000000C53000-memory.dmp

Filesize
8.3MB

Download
memory/3440-31-0x0000000000400000-0x0000000000C53000-memory.dmp

Filesize
8.3MB

Download
memory/3440-39-0x0000000000400000-0x0000000000C53000-memory.dmp

Filesize
8.3MB

Download
memory/3440-40-0x0000000000401000-0x0000000000426000-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