gcleaner | 03704ac5905c8ed32d791115ac52f119286075a5d25e3be6724f3b990c3f6361

General

Target

03704ac5905c8ed32d791115ac52f119286075a5d25e3be6724f3b990c3f6361.exe
Size

1.9MB
MD5

5abd444028545a70ac140f6c244f0da8
SHA1

5b46c706dfe9f4f443a894d746a76020a1835077
SHA256

03704ac5905c8ed32d791115ac52f119286075a5d25e3be6724f3b990c3f6361
SHA512

94b8033182016b9eff96e2360656c54724df879ac0f071c9fc2d95a07b012b462592813940d7623a100b6bbac6689ec461cccacb6cf316bd7981cb8a48c19652
SSDEEP

49152:hFVsVPJ6tytS4Xgo2cv2kzr6++5ReRdbLMf:hFWGtNSL6D5QdbLMf

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__	03704ac5905c8ed32d791115ac52f119286075a5d25e3be6724f3b990c3f6361.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	03704ac5905c8ed32d791115ac52f119286075a5d25e3be6724f3b990c3f6361.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	03704ac5905c8ed32d791115ac52f119286075a5d25e3be6724f3b990c3f6361.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-1-5-21-3442511616-637977696-3186306149-1000\Software\Wine	03704ac5905c8ed32d791115ac52f119286075a5d25e3be6724f3b990c3f6361.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

pid	Process
4872	03704ac5905c8ed32d791115ac52f119286075a5d25e3be6724f3b990c3f6361.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
4760	4872	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	03704ac5905c8ed32d791115ac52f119286075a5d25e3be6724f3b990c3f6361.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
4872	03704ac5905c8ed32d791115ac52f119286075a5d25e3be6724f3b990c3f6361.exe
4872	03704ac5905c8ed32d791115ac52f119286075a5d25e3be6724f3b990c3f6361.exe

C:\Users\Admin\AppData\Local\Temp\03704ac5905c8ed32d791115ac52f119286075a5d25e3be6724f3b990c3f6361.exe
"C:\Users\Admin\AppData\Local\Temp\03704ac5905c8ed32d791115ac52f119286075a5d25e3be6724f3b990c3f6361.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:4872
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4872 -s 1580
  2⤵
  - Program crash
  PID:4760

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 4872 -ip 4872
1⤵
PID:3468

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

Loading Replay Monitor...

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/4872-15-0x0000000000400000-0x0000000000C6E000-memory.dmp

Filesize
8.4MB

Download
memory/4872-11-0x0000000010000000-0x000000001001C000-memory.dmp

Filesize
112KB

Download
memory/4872-3-0x0000000000400000-0x0000000000C6E000-memory.dmp

Filesize
8.4MB

Download
memory/4872-4-0x0000000000400000-0x0000000000C6E000-memory.dmp

Filesize
8.4MB

Download
memory/4872-18-0x0000000000401000-0x0000000000427000-memory.dmp

Filesize
152KB

Download
memory/4872-7-0x0000000000400000-0x0000000000C6E000-memory.dmp

Filesize
8.4MB

Download
memory/4872-2-0x0000000000401000-0x0000000000427000-memory.dmp

Filesize
152KB

Download
memory/4872-0-0x0000000000400000-0x0000000000C6E000-memory.dmp

Filesize
8.4MB

Download
memory/4872-6-0x0000000000400000-0x0000000000C6E000-memory.dmp

Filesize
8.4MB

Download
memory/4872-19-0x0000000000400000-0x0000000000C6E000-memory.dmp

Filesize
8.4MB

Download
memory/4872-20-0x0000000000400000-0x0000000000C6E000-memory.dmp

Filesize
8.4MB

Download
memory/4872-21-0x0000000000400000-0x0000000000C6E000-memory.dmp

Filesize
8.4MB

Download
memory/4872-1-0x0000000077454000-0x0000000077456000-memory.dmp

Filesize
8KB

Download
memory/4872-23-0x0000000000400000-0x0000000000C6E000-memory.dmp

Filesize
8.4MB

Download
memory/4872-28-0x0000000000400000-0x0000000000C6E000-memory.dmp

Filesize
8.4MB

Download
memory/4872-39-0x0000000000400000-0x0000000000C6E000-memory.dmp

Filesize
8.4MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads