gcleaner | a687c9797742a530c9ceb0749a408fa7d1248ca9bc8d44f49c30bbdf98841356

General

Target

a687c9797742a530c9ceb0749a408fa7d1248ca9bc8d44f49c30bbdf98841356.exe
Size

287KB
MD5

07fb5ea5634bac4b19ea838e43710647
SHA1

51b00e580933da1666c6a7e37a3100bc7981f287
SHA256

a687c9797742a530c9ceb0749a408fa7d1248ca9bc8d44f49c30bbdf98841356
SHA512

f558c16fc40d0e8de949115aa19fd587b3b566ed67a0345de43862c61d0631bafb9d7f77a1a295898a654db6aec9ee1c1570d10522f9b3e69142a52eb80b2f8c
SSDEEP

6144:XxXHmOJ840xUW10pEMmhpOj48UGdPZ40:BXHmOOUtiMQSZjq0

Score

10^/10

gcleaner loader

Malware Config

Extracted

Family

gcleaner

C2

185.172.128.90

5.42.64.56

185.172.128.69

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:

a687c9797742a530c9ceb0749a408fa7d1248ca9bc8d44f49c30bbdf98841356.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-1162180587-977231257-2194346871-1000\Control Panel\International\Geo\Nation	a687c9797742a530c9ceb0749a408fa7d1248ca9bc8d44f49c30bbdf98841356.exe

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

System Information Discovery
T1082

Program crash 10 IoCs

Processes:

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

pid	pid_target	process	target process
3412	3240	WerFault.exe	a687c9797742a530c9ceb0749a408fa7d1248ca9bc8d44f49c30bbdf98841356.exe
3376	3240	WerFault.exe	a687c9797742a530c9ceb0749a408fa7d1248ca9bc8d44f49c30bbdf98841356.exe
232	3240	WerFault.exe	a687c9797742a530c9ceb0749a408fa7d1248ca9bc8d44f49c30bbdf98841356.exe
2940	3240	WerFault.exe	a687c9797742a530c9ceb0749a408fa7d1248ca9bc8d44f49c30bbdf98841356.exe
4468	3240	WerFault.exe	a687c9797742a530c9ceb0749a408fa7d1248ca9bc8d44f49c30bbdf98841356.exe
4216	3240	WerFault.exe	a687c9797742a530c9ceb0749a408fa7d1248ca9bc8d44f49c30bbdf98841356.exe
388	3240	WerFault.exe	a687c9797742a530c9ceb0749a408fa7d1248ca9bc8d44f49c30bbdf98841356.exe
4856	3240	WerFault.exe	a687c9797742a530c9ceb0749a408fa7d1248ca9bc8d44f49c30bbdf98841356.exe
1624	3240	WerFault.exe	a687c9797742a530c9ceb0749a408fa7d1248ca9bc8d44f49c30bbdf98841356.exe
4696	3240	WerFault.exe	a687c9797742a530c9ceb0749a408fa7d1248ca9bc8d44f49c30bbdf98841356.exe

Kills process with taskkill 1 IoCs
evasion

Processes:

taskkill.exe

pid process

3676 taskkill.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

taskkill.exe

description pid process

Token: SeDebugPrivilege 3676 taskkill.exe

pid	process
3676	taskkill.exe

description	pid	process
Token: SeDebugPrivilege	3676	taskkill.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

a687c9797742a530c9ceb0749a408fa7d1248ca9bc8d44f49c30bbdf98841356.execmd.exe

description	pid	process	target process
PID 3240 wrote to memory of 2336	3240	a687c9797742a530c9ceb0749a408fa7d1248ca9bc8d44f49c30bbdf98841356.exe	cmd.exe
PID 3240 wrote to memory of 2336	3240	a687c9797742a530c9ceb0749a408fa7d1248ca9bc8d44f49c30bbdf98841356.exe	cmd.exe
PID 3240 wrote to memory of 2336	3240	a687c9797742a530c9ceb0749a408fa7d1248ca9bc8d44f49c30bbdf98841356.exe	cmd.exe
PID 2336 wrote to memory of 3676	2336	cmd.exe	taskkill.exe
PID 2336 wrote to memory of 3676	2336	cmd.exe	taskkill.exe
PID 2336 wrote to memory of 3676	2336	cmd.exe	taskkill.exe

C:\Users\Admin\AppData\Local\Temp\a687c9797742a530c9ceb0749a408fa7d1248ca9bc8d44f49c30bbdf98841356.exe
"C:\Users\Admin\AppData\Local\Temp\a687c9797742a530c9ceb0749a408fa7d1248ca9bc8d44f49c30bbdf98841356.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:3240

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3240 -s 456
2⤵
- Program crash
PID:3412

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3240 -s 500
2⤵
- Program crash
PID:3376

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3240 -s 748
2⤵
- Program crash
PID:232

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3240 -s 768
2⤵
- Program crash
PID:2940

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3240 -s 788
2⤵
- Program crash
PID:4468

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3240 -s 760
2⤵
- Program crash
PID:4216

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3240 -s 912
2⤵
- Program crash
PID:388

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3240 -s 1000
2⤵
- Program crash
PID:4856

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3240 -s 1348
2⤵
- Program crash
PID:1624

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c taskkill /im "a687c9797742a530c9ceb0749a408fa7d1248ca9bc8d44f49c30bbdf98841356.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\a687c9797742a530c9ceb0749a408fa7d1248ca9bc8d44f49c30bbdf98841356.exe" & exit
2⤵
- Suspicious use of WriteProcessMemory
PID:2336

C:\Windows\SysWOW64\taskkill.exe
taskkill /im "a687c9797742a530c9ceb0749a408fa7d1248ca9bc8d44f49c30bbdf98841356.exe" /f
3⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
PID:3676

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3240 -s 1380
2⤵
- Program crash
PID:4696

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3240 -ip 3240
1⤵
PID:1936

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 484 -p 3240 -ip 3240
1⤵
PID:1904

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 512 -p 3240 -ip 3240
1⤵
PID:920

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 464 -p 3240 -ip 3240
1⤵
PID:732

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 464 -p 3240 -ip 3240
1⤵
PID:4916

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 512 -p 3240 -ip 3240
1⤵
PID:4496

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 544 -p 3240 -ip 3240
1⤵
PID:4644

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 520 -p 3240 -ip 3240
1⤵
PID:3672

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 532 -p 3240 -ip 3240
1⤵
PID:1640

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 468 -p 3240 -ip 3240
1⤵
PID:4652

Network

MITRE ATT&CK Matrix ATT&CK v13

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

Resource Development

Reconnaissance

Replay Monitor

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Downloads

memory/3240-1-0x00000000005D0000-0x00000000006D0000-memory.dmp

Filesize
1024KB

Download
memory/3240-2-0x0000000000560000-0x000000000059C000-memory.dmp

Filesize
240KB

Download
memory/3240-3-0x0000000000400000-0x0000000000440000-memory.dmp

Filesize
256KB

Download
memory/3240-6-0x0000000000400000-0x0000000000491000-memory.dmp

Filesize
580KB

Download
memory/3240-8-0x0000000000400000-0x0000000000440000-memory.dmp

Filesize
256KB

Download
memory/3240-7-0x0000000000560000-0x000000000059C000-memory.dmp

Filesize
240KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v13

Replay Monitor

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Downloads