gcleaner | ce53630e164fefbd80810e812308044a6c6705ae6c797aa680c0952b1b28c15f

General

Target

c539e1b35b57d8924a24e156bfcc7975.exe
Size

286KB
MD5

c539e1b35b57d8924a24e156bfcc7975
SHA1

41be2de44376f7cc477d9213867f288702fc9a8d
SHA256

ce53630e164fefbd80810e812308044a6c6705ae6c797aa680c0952b1b28c15f
SHA512

8019d2e229244e74228fc1dbe1ac0a21eca864ab355e70ac54c29959c31f12511883f5ea218e424e81cb511183e7fabbe0f3bc87c9d3bd7436bfe42c58ee56b9
SSDEEP

3072:PpyvhHX7mjjOOM+WCBSi1pm64MlT6pb7gI7DOr2mntlMwGiphVBVda5MWaOiuCPg:xSCjvhbmWlQ7PyztHphna5DRiuIq59P

Score

10^/10

gcleaner loader

Malware Config

Extracted

Family

gcleaner

C2

45.12.253.56

45.12.253.72

45.12.253.98

45.12.253.75

Signatures

GCleaner
GCleaner is a Pay-Per-Install malware loader first discovered in early 2019.
loader 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:

c539e1b35b57d8924a24e156bfcc7975.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-1013461898-3711306144-4198452673-1000\Control Panel\International\Geo\Nation	c539e1b35b57d8924a24e156bfcc7975.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

Program crash 9 IoCs

Processes:

WerFault.exeWerFault.exeWerFault.exeWerFault.exeWerFault.exeWerFault.exeWerFault.exeWerFault.exeWerFault.exe

pid	pid_target	process	target process
4640	4604	WerFault.exe	c539e1b35b57d8924a24e156bfcc7975.exe
1544	4604	WerFault.exe	c539e1b35b57d8924a24e156bfcc7975.exe
624	4604	WerFault.exe	c539e1b35b57d8924a24e156bfcc7975.exe
232	4604	WerFault.exe	c539e1b35b57d8924a24e156bfcc7975.exe
4956	4604	WerFault.exe	c539e1b35b57d8924a24e156bfcc7975.exe
4724	4604	WerFault.exe	c539e1b35b57d8924a24e156bfcc7975.exe
4864	4604	WerFault.exe	c539e1b35b57d8924a24e156bfcc7975.exe
4148	4604	WerFault.exe	c539e1b35b57d8924a24e156bfcc7975.exe
3540	4604	WerFault.exe	c539e1b35b57d8924a24e156bfcc7975.exe

Kills process with taskkill 1 IoCs
evasion

Processes:

taskkill.exe

pid process

3776 taskkill.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

taskkill.exe

description pid process

Token: SeDebugPrivilege 3776 taskkill.exe

pid	process
3776	taskkill.exe

description	pid	process
Token: SeDebugPrivilege	3776	taskkill.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

c539e1b35b57d8924a24e156bfcc7975.execmd.exe

description	pid	process	target process
PID 4604 wrote to memory of 3820	4604	c539e1b35b57d8924a24e156bfcc7975.exe	cmd.exe
PID 4604 wrote to memory of 3820	4604	c539e1b35b57d8924a24e156bfcc7975.exe	cmd.exe
PID 4604 wrote to memory of 3820	4604	c539e1b35b57d8924a24e156bfcc7975.exe	cmd.exe
PID 3820 wrote to memory of 3776	3820	cmd.exe	taskkill.exe
PID 3820 wrote to memory of 3776	3820	cmd.exe	taskkill.exe
PID 3820 wrote to memory of 3776	3820	cmd.exe	taskkill.exe

C:\Users\Admin\AppData\Local\Temp\c539e1b35b57d8924a24e156bfcc7975.exe
"C:\Users\Admin\AppData\Local\Temp\c539e1b35b57d8924a24e156bfcc7975.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4604

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 4604 -s 452
2⤵
- Program crash
PID:4640

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 4604 -s 764
2⤵
- Program crash
PID:1544

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 4604 -s 772
2⤵
- Program crash
PID:624

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 4604 -s 772
2⤵
- Program crash
PID:232

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 4604 -s 836
2⤵
- Program crash
PID:4956

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 4604 -s 928
2⤵
- Program crash
PID:4724

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 4604 -s 928
2⤵
- Program crash
PID:4864

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 4604 -s 1364
2⤵
- Program crash
PID:4148

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c taskkill /im "c539e1b35b57d8924a24e156bfcc7975.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\c539e1b35b57d8924a24e156bfcc7975.exe" & exit
2⤵
- Suspicious use of WriteProcessMemory
PID:3820

C:\Windows\SysWOW64\taskkill.exe
taskkill /im "c539e1b35b57d8924a24e156bfcc7975.exe" /f
3⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
PID:3776

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 4604 -s 1408
2⤵
- Program crash
PID:3540

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 416 -p 4604 -ip 4604
1⤵
PID:4648

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 396 -p 4604 -ip 4604
1⤵
PID:2084

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 464 -p 4604 -ip 4604
1⤵
PID:4796

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 452 -p 4604 -ip 4604
1⤵
PID:2004

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 536 -p 4604 -ip 4604
1⤵
PID:32

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 536 -p 4604 -ip 4604
1⤵
PID:4732

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 4604 -ip 4604
1⤵
PID:1824

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 464 -p 4604 -ip 4604
1⤵
PID:1404

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 396 -p 4604 -ip 4604
1⤵
PID:3372

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

memory/4604-134-0x0000000000650000-0x0000000000690000-memory.dmp

Filesize
256KB

Download
memory/4604-135-0x0000000000400000-0x00000000004B8000-memory.dmp

Filesize
736KB

Download
memory/4604-139-0x0000000000400000-0x00000000004B8000-memory.dmp

Filesize
736KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads