gcleaner | 2289b76b13faa5b931d69651fdc9fd3e3e489116e6943198ed91976a14be8f00

General

Target

2289b76b13faa5b931d69651fdc9fd3e3e489116e6943198ed91976a14be8f00.exe
Size

366KB
MD5

aa7e933ee48e373d14e549c9fef4f674
SHA1

34836b695a53627366f750fff61670b4e4cfbb5b
SHA256

2289b76b13faa5b931d69651fdc9fd3e3e489116e6943198ed91976a14be8f00
SHA512

25dd3ac08fa8f02d2527e2a6e89f92fc79a3d27310231078acd32a0406d7db87fc91c689abf3615fc698c37b8ee7a5a1951a84297e6bfacaf1c6ba5281f473a0
SSDEEP

6144:cZuEzkdQmLMa5a7s8+JWGxBU6J0eo+5PEVR2NQaHB:guEzkdQmR5a7sFJW4b08R6Rkd

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

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
1832	4648	WerFault.exe	2289b76b13faa5b931d69651fdc9fd3e3e489116e6943198ed91976a14be8f00.exe
4236	4648	WerFault.exe	2289b76b13faa5b931d69651fdc9fd3e3e489116e6943198ed91976a14be8f00.exe
2948	4648	WerFault.exe	2289b76b13faa5b931d69651fdc9fd3e3e489116e6943198ed91976a14be8f00.exe
1988	4648	WerFault.exe	2289b76b13faa5b931d69651fdc9fd3e3e489116e6943198ed91976a14be8f00.exe
3152	4648	WerFault.exe	2289b76b13faa5b931d69651fdc9fd3e3e489116e6943198ed91976a14be8f00.exe
2624	4648	WerFault.exe	2289b76b13faa5b931d69651fdc9fd3e3e489116e6943198ed91976a14be8f00.exe
4744	4648	WerFault.exe	2289b76b13faa5b931d69651fdc9fd3e3e489116e6943198ed91976a14be8f00.exe
848	4648	WerFault.exe	2289b76b13faa5b931d69651fdc9fd3e3e489116e6943198ed91976a14be8f00.exe
3684	4648	WerFault.exe	2289b76b13faa5b931d69651fdc9fd3e3e489116e6943198ed91976a14be8f00.exe

Kills process with taskkill 1 IoCs
evasion

Processes:

taskkill.exe

pid process

3732 taskkill.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

taskkill.exe

description pid process

Token: SeDebugPrivilege 3732 taskkill.exe

pid	process
3732	taskkill.exe

description	pid	process
Token: SeDebugPrivilege	3732	taskkill.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

2289b76b13faa5b931d69651fdc9fd3e3e489116e6943198ed91976a14be8f00.execmd.exe

description	pid	process	target process
PID 4648 wrote to memory of 4532	4648	2289b76b13faa5b931d69651fdc9fd3e3e489116e6943198ed91976a14be8f00.exe	cmd.exe
PID 4648 wrote to memory of 4532	4648	2289b76b13faa5b931d69651fdc9fd3e3e489116e6943198ed91976a14be8f00.exe	cmd.exe
PID 4648 wrote to memory of 4532	4648	2289b76b13faa5b931d69651fdc9fd3e3e489116e6943198ed91976a14be8f00.exe	cmd.exe
PID 4532 wrote to memory of 3732	4532	cmd.exe	taskkill.exe
PID 4532 wrote to memory of 3732	4532	cmd.exe	taskkill.exe
PID 4532 wrote to memory of 3732	4532	cmd.exe	taskkill.exe

C:\Users\Admin\AppData\Local\Temp\2289b76b13faa5b931d69651fdc9fd3e3e489116e6943198ed91976a14be8f00.exe
"C:\Users\Admin\AppData\Local\Temp\2289b76b13faa5b931d69651fdc9fd3e3e489116e6943198ed91976a14be8f00.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:4648

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 4648 -s 480
2⤵
- Program crash
PID:1832

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 4648 -s 796
2⤵
- Program crash
PID:4236

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 4648 -s 816
2⤵
- Program crash
PID:2948

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 4648 -s 836
2⤵
- Program crash
PID:1988

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 4648 -s 868
2⤵
- Program crash
PID:3152

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 4648 -s 1000
2⤵
- Program crash
PID:2624

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 4648 -s 1108
2⤵
- Program crash
PID:4744

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 4648 -s 1452
2⤵
- Program crash
PID:848

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c taskkill /im "2289b76b13faa5b931d69651fdc9fd3e3e489116e6943198ed91976a14be8f00.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\2289b76b13faa5b931d69651fdc9fd3e3e489116e6943198ed91976a14be8f00.exe" & exit
2⤵
- Suspicious use of WriteProcessMemory
PID:4532

C:\Windows\SysWOW64\taskkill.exe
taskkill /im "2289b76b13faa5b931d69651fdc9fd3e3e489116e6943198ed91976a14be8f00.exe" /f
3⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
PID:3732

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 4648 -s 1556
2⤵
- Program crash
PID:3684

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 4648 -ip 4648
1⤵
PID:3404

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4648 -ip 4648
1⤵
PID:4992

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 360 -p 4648 -ip 4648
1⤵
PID:3676

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 520 -p 4648 -ip 4648
1⤵
PID:484

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 464 -p 4648 -ip 4648
1⤵
PID:2248

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 412 -p 4648 -ip 4648
1⤵
PID:4920

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 360 -p 4648 -ip 4648
1⤵
PID:5060

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 360 -p 4648 -ip 4648
1⤵
PID:4840

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 496 -p 4648 -ip 4648
1⤵
PID:2216

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Replay Monitor

Loading Replay Monitor...

Downloads

memory/4648-2-0x0000000000400000-0x0000000000440000-memory.dmp

Filesize
256KB

Download
memory/4648-1-0x0000000002730000-0x0000000002830000-memory.dmp

Filesize
1024KB

Download
memory/4648-3-0x0000000000400000-0x0000000002378000-memory.dmp

Filesize
31.5MB

Download
memory/4648-6-0x0000000000400000-0x0000000002378000-memory.dmp

Filesize
31.5MB

Download
memory/4648-7-0x0000000000400000-0x0000000000440000-memory.dmp

Filesize
256KB

Download

Analysis

Sharing