gcleaner | c478f156fe5c34581fe6913183cc08c5103babc310cb60250dba395b261bbdec

General

Target

c478f156fe5c34581fe6913183cc08c5103babc310cb60250dba395b261bbdec.exe
Size

1.9MB
MD5

a799ca00b534622e3ce09cedbb913f79
SHA1

30fbc64022b704d4ee78b312fdc1f2a018522ad4
SHA256

c478f156fe5c34581fe6913183cc08c5103babc310cb60250dba395b261bbdec
SHA512

493fbcf504c54b6fa215a9e865bfb0ad74da564c94a61926abe067071407b58e8ef578950816d8e4973bdb5f5ccbef6392ea78c34d4b4107c0a6627b20b04040
SSDEEP

24576:+sxBcmJsYD5MtIE2i3Keuph8QVn6dhicrn8NUGOWk9jHA7sCE8Xw+v+sWavrGLSM:V+aibuLn6d/8G9jHS9bW5ztPXFB

Score

10^/10

gcleaner discovery evasion 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

evasion

Query Registry

T1012

Virtualization/Sandbox Evasion

T1497

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	c478f156fe5c34581fe6913183cc08c5103babc310cb60250dba395b261bbdec.exe

Downloads MZ/PE file

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	c478f156fe5c34581fe6913183cc08c5103babc310cb60250dba395b261bbdec.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	c478f156fe5c34581fe6913183cc08c5103babc310cb60250dba395b261bbdec.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.

evasion

Query Registry

T1012

Virtualization/Sandbox Evasion

T1497

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\Software\Wine	c478f156fe5c34581fe6913183cc08c5103babc310cb60250dba395b261bbdec.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

pid	Process
1208	c478f156fe5c34581fe6913183cc08c5103babc310cb60250dba395b261bbdec.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
640	1208	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	c478f156fe5c34581fe6913183cc08c5103babc310cb60250dba395b261bbdec.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1208	c478f156fe5c34581fe6913183cc08c5103babc310cb60250dba395b261bbdec.exe
1208	c478f156fe5c34581fe6913183cc08c5103babc310cb60250dba395b261bbdec.exe

C:\Users\Admin\AppData\Local\Temp\c478f156fe5c34581fe6913183cc08c5103babc310cb60250dba395b261bbdec.exe
"C:\Users\Admin\AppData\Local\Temp\c478f156fe5c34581fe6913183cc08c5103babc310cb60250dba395b261bbdec.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
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
PID:1208
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1208 -s 520
  2⤵
  - Program crash
  PID:640

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 1208 -ip 1208
1⤵
PID:2776

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\FQRZN8O7\download[1].htm

Filesize
1B

MD5
cfcd208495d565ef66e7dff9f98764da

SHA1
b6589fc6ab0dc82cf12099d1c2d40ab994e8410c

SHA256
5feceb66ffc86f38d952786c6d696c79c2dbc239dd4e91b46729d73a27fb57e9

SHA512
31bca02094eb78126a517b206a88c73cfa9ec6f704c7030d18212cace820f025f00bf0ea68dbf3f3a5436ca63b53bf7bf80ad8d5de7d8359d0b7fed9dbc3ab99

Download Submit
memory/1208-12-0x0000000010000000-0x000000001001C000-memory.dmp

Filesize
112KB

Download
memory/1208-3-0x0000000000400000-0x0000000000C8E000-memory.dmp

Filesize
8.6MB

Download
memory/1208-18-0x0000000000401000-0x0000000000426000-memory.dmp

Filesize
148KB

Download
memory/1208-19-0x0000000000400000-0x0000000000C8E000-memory.dmp

Filesize
8.6MB

Download
memory/1208-6-0x0000000000400000-0x0000000000C8E000-memory.dmp

Filesize
8.6MB

Download
memory/1208-7-0x0000000000400000-0x0000000000C8E000-memory.dmp

Filesize
8.6MB

Download
memory/1208-8-0x0000000000400000-0x0000000000C8E000-memory.dmp

Filesize
8.6MB

Download
memory/1208-0-0x0000000000400000-0x0000000000C8E000-memory.dmp

Filesize
8.6MB

Download
memory/1208-41-0x0000000000401000-0x0000000000426000-memory.dmp

Filesize
148KB

Download
memory/1208-2-0x0000000000401000-0x0000000000426000-memory.dmp

Filesize
148KB

Download
memory/1208-4-0x0000000000400000-0x0000000000C8E000-memory.dmp

Filesize
8.6MB

Download
memory/1208-21-0x0000000000400000-0x0000000000C8E000-memory.dmp

Filesize
8.6MB

Download
memory/1208-22-0x0000000000400000-0x0000000000C8E000-memory.dmp

Filesize
8.6MB

Download
memory/1208-1-0x0000000077624000-0x0000000077626000-memory.dmp

Filesize
8KB

Download
memory/1208-28-0x0000000000400000-0x0000000000C8E000-memory.dmp

Filesize
8.6MB

Download
memory/1208-34-0x0000000000400000-0x0000000000C8E000-memory.dmp

Filesize
8.6MB

Download
memory/1208-40-0x0000000000400000-0x0000000000C8E000-memory.dmp

Filesize
8.6MB

Download
memory/1208-16-0x0000000000400000-0x0000000000C8E000-memory.dmp

Filesize
8.6MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads