gcleaner | 65739956328d7f12411f568fd83ea6c7ae1641fdf1c6dc450cc2c78c8242677b

General

Target

65739956328d7f12411f568fd83ea6c7ae1641fdf1c6dc450cc2c78c8242677b.exe
Size

343KB
MD5

8deb97fea5fce1be5570f57787a8c21b
SHA1

3a1a111c133fdcd15cb1ae4ae8e626284243cbd7
SHA256

65739956328d7f12411f568fd83ea6c7ae1641fdf1c6dc450cc2c78c8242677b
SHA512

75d2a77cecc55085cabb8769f2c0bb40531b6957061c9b3887a1bee4a2ee343dbad6cc7781829dd9de229eb281c1dabae7fe4ea831ca34b7ddb784dcc875c5e2
SSDEEP

6144:P/PL7GU5lXYN9igXC+4CqJMe7YIe3Qg2:f3GU5lXgFXC+esIbg

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:

65739956328d7f12411f568fd83ea6c7ae1641fdf1c6dc450cc2c78c8242677b.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-1529757233-3489015626-3409890339-1000\Control Panel\International\Geo\Nation	65739956328d7f12411f568fd83ea6c7ae1641fdf1c6dc450cc2c78c8242677b.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
1756	2008	WerFault.exe	65739956328d7f12411f568fd83ea6c7ae1641fdf1c6dc450cc2c78c8242677b.exe
4908	2008	WerFault.exe	65739956328d7f12411f568fd83ea6c7ae1641fdf1c6dc450cc2c78c8242677b.exe
2792	2008	WerFault.exe	65739956328d7f12411f568fd83ea6c7ae1641fdf1c6dc450cc2c78c8242677b.exe
5068	2008	WerFault.exe	65739956328d7f12411f568fd83ea6c7ae1641fdf1c6dc450cc2c78c8242677b.exe
3432	2008	WerFault.exe	65739956328d7f12411f568fd83ea6c7ae1641fdf1c6dc450cc2c78c8242677b.exe
4460	2008	WerFault.exe	65739956328d7f12411f568fd83ea6c7ae1641fdf1c6dc450cc2c78c8242677b.exe
1900	2008	WerFault.exe	65739956328d7f12411f568fd83ea6c7ae1641fdf1c6dc450cc2c78c8242677b.exe
1272	2008	WerFault.exe	65739956328d7f12411f568fd83ea6c7ae1641fdf1c6dc450cc2c78c8242677b.exe
3212	2008	WerFault.exe	65739956328d7f12411f568fd83ea6c7ae1641fdf1c6dc450cc2c78c8242677b.exe

Kills process with taskkill 1 IoCs
evasion

Processes:

taskkill.exe

pid process

4996 taskkill.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

taskkill.exe

description pid process

Token: SeDebugPrivilege 4996 taskkill.exe

pid	process
4996	taskkill.exe

description	pid	process
Token: SeDebugPrivilege	4996	taskkill.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

65739956328d7f12411f568fd83ea6c7ae1641fdf1c6dc450cc2c78c8242677b.execmd.exe

description	pid	process	target process
PID 2008 wrote to memory of 788	2008	65739956328d7f12411f568fd83ea6c7ae1641fdf1c6dc450cc2c78c8242677b.exe	cmd.exe
PID 2008 wrote to memory of 788	2008	65739956328d7f12411f568fd83ea6c7ae1641fdf1c6dc450cc2c78c8242677b.exe	cmd.exe
PID 2008 wrote to memory of 788	2008	65739956328d7f12411f568fd83ea6c7ae1641fdf1c6dc450cc2c78c8242677b.exe	cmd.exe
PID 788 wrote to memory of 4996	788	cmd.exe	taskkill.exe
PID 788 wrote to memory of 4996	788	cmd.exe	taskkill.exe
PID 788 wrote to memory of 4996	788	cmd.exe	taskkill.exe

C:\Users\Admin\AppData\Local\Temp\65739956328d7f12411f568fd83ea6c7ae1641fdf1c6dc450cc2c78c8242677b.exe
"C:\Users\Admin\AppData\Local\Temp\65739956328d7f12411f568fd83ea6c7ae1641fdf1c6dc450cc2c78c8242677b.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:2008

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2008 -s 788
2⤵
- Program crash
PID:1756

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2008 -s 824
2⤵
- Program crash
PID:4908

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2008 -s 844
2⤵
- Program crash
PID:2792

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2008 -s 864
2⤵
- Program crash
PID:5068

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2008 -s 952
2⤵
- Program crash
PID:3432

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2008 -s 1052
2⤵
- Program crash
PID:4460

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2008 -s 1164
2⤵
- Program crash
PID:1900

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2008 -s 1380
2⤵
- Program crash
PID:1272

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c taskkill /im "65739956328d7f12411f568fd83ea6c7ae1641fdf1c6dc450cc2c78c8242677b.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\65739956328d7f12411f568fd83ea6c7ae1641fdf1c6dc450cc2c78c8242677b.exe" & exit
2⤵
- Suspicious use of WriteProcessMemory
PID:788

C:\Windows\SysWOW64\taskkill.exe
taskkill /im "65739956328d7f12411f568fd83ea6c7ae1641fdf1c6dc450cc2c78c8242677b.exe" /f
3⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
PID:4996

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2008 -s 1508
2⤵
- Program crash
PID:3212

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 464 -p 2008 -ip 2008
1⤵
PID:2536

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 476 -p 2008 -ip 2008
1⤵
PID:1892

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 2008 -ip 2008
1⤵
PID:220

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 480 -p 2008 -ip 2008
1⤵
PID:768

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 424 -p 2008 -ip 2008
1⤵
PID:4048

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 396 -p 2008 -ip 2008
1⤵
PID:532

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 528 -p 2008 -ip 2008
1⤵
PID:2676

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 540 -p 2008 -ip 2008
1⤵
PID:2272

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 396 -p 2008 -ip 2008
1⤵
PID:3348

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 560 -p 2008 -ip 2008
1⤵
PID:632

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

Replay Monitor

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Downloads

memory/2008-134-0x0000000002E20000-0x0000000002E60000-memory.dmp

Filesize
256KB

Download
memory/2008-135-0x0000000000400000-0x0000000002BC3000-memory.dmp

Filesize
39.8MB

Download
memory/2008-137-0x0000000002E20000-0x0000000002E60000-memory.dmp

Filesize
256KB

Download
memory/2008-146-0x0000000000400000-0x0000000002BC3000-memory.dmp

Filesize
39.8MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

Replay Monitor

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Downloads