gcleaner | 6851b72e0bfaf608294bcac6ffef07e5e6591aee8b94ce9afad46b6e6cc32a59

Analysis

max time kernel
148s
max time network
153s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
11-11-2024 09:28

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General

Target

setup_installer/Wed09c42cad92c20f79.exe
Size

421KB
MD5

48c91156511d520353b21c4df6253944
SHA1

a5fffe608205c897fea58541ae844d30a2fa4a0f
SHA256

bb8872a748020b855eacb3df80cc431edf7104a4bdd3805f0a8bb31341cb3b92
SHA512

fb95ccf301d3461232d436070ef0710f57137860e63285eaff25ef3f22e5e381278ece8c1a6a52d889ae5a80316a7c41d4176311d32aa1034866bc91a973deaa
SSDEEP

6144:ieYFPNS99AlAKfp6fgMUhcVxyK90h4QSAmTdNWlrdJhMRUeERyQbPawZd1YoM:clBf2Uh9OCmLorfhMRUeERy3+d1fM

Score

10^/10

gcleaner discovery loader

Malware Config

Signatures

GCleaner
GCleaner is a Pay-Per-Install malware loader first discovered in early 2019.
loader gcleaner
Gcleaner family
gcleaner

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

Processes:

Wed09c42cad92c20f79.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\Control Panel\International\Geo\Nation	Wed09c42cad92c20f79.exe

Legitimate hosting services abused for malware hosting/C2 1 TTPs 2 IoCs

Web Service
T1102

Processes:

flow ioc

13 iplogger.org
15 iplogger.org
Looks up external IP address via web service 1 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.

Processes:

flow ioc

24 freegeoip.app
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082
Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

1624 448 WerFault.exe Wed09c42cad92c20f79.exe

flow	ioc
13	iplogger.org
15	iplogger.org

flow	ioc
24	freegeoip.app

pid	pid_target	process	target process
1624	448	WerFault.exe	Wed09c42cad92c20f79.exe

System Location Discovery: System Language Discovery 1 TTPs 3 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

Processes:

taskkill.exeWed09c42cad92c20f79.execmd.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	taskkill.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Wed09c42cad92c20f79.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Kills process with taskkill 1 IoCs
evasion

Processes:

taskkill.exe

pid process

4844 taskkill.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

taskkill.exe

description pid process

Token: SeDebugPrivilege 4844 taskkill.exe

pid	process
4844	taskkill.exe

description	pid	process
Token: SeDebugPrivilege	4844	taskkill.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

Wed09c42cad92c20f79.execmd.exe

description	pid	process	target process
PID 448 wrote to memory of 4540	448	Wed09c42cad92c20f79.exe	cmd.exe
PID 448 wrote to memory of 4540	448	Wed09c42cad92c20f79.exe	cmd.exe
PID 448 wrote to memory of 4540	448	Wed09c42cad92c20f79.exe	cmd.exe
PID 4540 wrote to memory of 4844	4540	cmd.exe	taskkill.exe
PID 4540 wrote to memory of 4844	4540	cmd.exe	taskkill.exe
PID 4540 wrote to memory of 4844	4540	cmd.exe	taskkill.exe

C:\Users\Admin\AppData\Local\Temp\setup_installer\Wed09c42cad92c20f79.exe
"C:\Users\Admin\AppData\Local\Temp\setup_installer\Wed09c42cad92c20f79.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:448
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c taskkill /im "Wed09c42cad92c20f79.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\setup_installer\Wed09c42cad92c20f79.exe" & exit
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:4540
- - C:\Windows\SysWOW64\taskkill.exe
    taskkill /im "Wed09c42cad92c20f79.exe" /f
    3⤵
    - System Location Discovery: System Language Discovery
    - Kills process with taskkill
    - Suspicious use of AdjustPrivilegeToken
    PID:4844
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 448 -s 1908
  2⤵
  - Program crash
  PID:1624

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 200 -p 448 -ip 448
1⤵
PID:1760

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Web Service

T1102

Exfiltration

Impact

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Downloads

memory/448-1-0x0000000002EF0000-0x0000000002FF0000-memory.dmp

Filesize
1024KB

Download
memory/448-2-0x0000000002CA0000-0x0000000002CEA000-memory.dmp

Filesize
296KB

Download
memory/448-3-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/448-6-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/448-5-0x0000000002CA0000-0x0000000002CEA000-memory.dmp

Filesize
296KB

Download
memory/448-4-0x0000000000400000-0x0000000002BC3000-memory.dmp

Filesize
39.8MB

Download