gcleaner | d915e62456dd3aa72b0a4589db579113c0f2e10e9b78c97b58768139ddbc99e8

General

Target

d915e62456dd3aa72b0a4589db579113c0f2e10e9b78c97b58768139ddbc99e8.exe
Size

1.9MB
MD5

f51fbdb8cc97d3fa6cd9fc8673e05bc3
SHA1

b0b1b59c5c678ab37681e2beec2eb5cb1ee788b3
SHA256

d915e62456dd3aa72b0a4589db579113c0f2e10e9b78c97b58768139ddbc99e8
SHA512

66672ec1c1762dc9302cd65aa417da2202d47c61278fac32d675489437882d6f373d95e6a616a20ec12cbb0b52288b2c62f551086490cddb08d70a1a953e0428
SSDEEP

49152:gAo2F+QGJsvHhH7fwjzvrmrvvSuyxcmkLf4uqqUR:gl4+/GBbfwjzar3cPyfS

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__	d915e62456dd3aa72b0a4589db579113c0f2e10e9b78c97b58768139ddbc99e8.exe

Downloads MZ/PE file 1 IoCs

flow	pid	Process
14	3556	d915e62456dd3aa72b0a4589db579113c0f2e10e9b78c97b58768139ddbc99e8.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	d915e62456dd3aa72b0a4589db579113c0f2e10e9b78c97b58768139ddbc99e8.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	d915e62456dd3aa72b0a4589db579113c0f2e10e9b78c97b58768139ddbc99e8.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-1-5-21-3350944739-639801879-157714471-1000\Software\Wine	d915e62456dd3aa72b0a4589db579113c0f2e10e9b78c97b58768139ddbc99e8.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

pid	Process
3556	d915e62456dd3aa72b0a4589db579113c0f2e10e9b78c97b58768139ddbc99e8.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
4104	3556	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	d915e62456dd3aa72b0a4589db579113c0f2e10e9b78c97b58768139ddbc99e8.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
3556	d915e62456dd3aa72b0a4589db579113c0f2e10e9b78c97b58768139ddbc99e8.exe
3556	d915e62456dd3aa72b0a4589db579113c0f2e10e9b78c97b58768139ddbc99e8.exe

C:\Users\Admin\AppData\Local\Temp\d915e62456dd3aa72b0a4589db579113c0f2e10e9b78c97b58768139ddbc99e8.exe
"C:\Users\Admin\AppData\Local\Temp\d915e62456dd3aa72b0a4589db579113c0f2e10e9b78c97b58768139ddbc99e8.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:3556
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3556 -s 1400
  2⤵
  - Program crash
  PID:4104

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 452 -p 3556 -ip 3556
1⤵
PID:1404

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\VKYZDMA5\download[1].htm

Filesize
1B

MD5
cfcd208495d565ef66e7dff9f98764da

SHA1
b6589fc6ab0dc82cf12099d1c2d40ab994e8410c

SHA256
5feceb66ffc86f38d952786c6d696c79c2dbc239dd4e91b46729d73a27fb57e9

SHA512
31bca02094eb78126a517b206a88c73cfa9ec6f704c7030d18212cace820f025f00bf0ea68dbf3f3a5436ca63b53bf7bf80ad8d5de7d8359d0b7fed9dbc3ab99

Download Submit
memory/3556-4-0x0000000000400000-0x0000000000C63000-memory.dmp

Filesize
8.4MB

Download
memory/3556-18-0x0000000000400000-0x0000000000C63000-memory.dmp

Filesize
8.4MB

Download
memory/3556-2-0x0000000000401000-0x0000000000426000-memory.dmp

Filesize
148KB

Download
memory/3556-0-0x0000000000400000-0x0000000000C63000-memory.dmp

Filesize
8.4MB

Download
memory/3556-6-0x0000000000400000-0x0000000000C63000-memory.dmp

Filesize
8.4MB

Download
memory/3556-7-0x0000000000400000-0x0000000000C63000-memory.dmp

Filesize
8.4MB

Download
memory/3556-8-0x0000000000400000-0x0000000000C63000-memory.dmp

Filesize
8.4MB

Download
memory/3556-12-0x0000000010000000-0x000000001001C000-memory.dmp

Filesize
112KB

Download
memory/3556-3-0x0000000000400000-0x0000000000C63000-memory.dmp

Filesize
8.4MB

Download
memory/3556-20-0x0000000000400000-0x0000000000C63000-memory.dmp

Filesize
8.4MB

Download
memory/3556-17-0x0000000000401000-0x0000000000426000-memory.dmp

Filesize
148KB

Download
memory/3556-1-0x0000000076F54000-0x0000000076F56000-memory.dmp

Filesize
8KB

Download
memory/3556-22-0x0000000000400000-0x0000000000C63000-memory.dmp

Filesize
8.4MB

Download
memory/3556-27-0x0000000000400000-0x0000000000C63000-memory.dmp

Filesize
8.4MB

Download
memory/3556-31-0x0000000000400000-0x0000000000C63000-memory.dmp

Filesize
8.4MB

Download
memory/3556-39-0x0000000000400000-0x0000000000C63000-memory.dmp

Filesize
8.4MB

Download
memory/3556-40-0x0000000000401000-0x0000000000426000-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