gcleaner | b78bd30ade81b7b09db93b23417d2c4bc826b8c79a185c6b721f3bc287a653c0

General

Target

b78bd30ade81b7b09db93b23417d2c4bc826b8c79a185c6b721f3bc287a653c0.exe
Size

318KB
MD5

33f6a5e47a1eacb2b1a25b258a0a7207
SHA1

48dc24b4f9745dc7a6a71871569b02b972d4dd24
SHA256

b78bd30ade81b7b09db93b23417d2c4bc826b8c79a185c6b721f3bc287a653c0
SHA512

331e401987a85c01ab60976a30f4a54166c968b65e245eca32c7a4f2921b31b855bd7c6e860194e50e3801b4fba9c77ce7dcf0776cdf1390f947afe75b87df39
SSDEEP

6144:TxnxMQQs5PAI//dNUuuQrPDqTUrXXxgf497LWT:Jxys5P+uBPDqTqHta

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 10 IoCs

Processes:

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

pid	pid_target	process	target process
2392	3272	WerFault.exe	b78bd30ade81b7b09db93b23417d2c4bc826b8c79a185c6b721f3bc287a653c0.exe
1180	3272	WerFault.exe	b78bd30ade81b7b09db93b23417d2c4bc826b8c79a185c6b721f3bc287a653c0.exe
4508	3272	WerFault.exe	b78bd30ade81b7b09db93b23417d2c4bc826b8c79a185c6b721f3bc287a653c0.exe
4740	3272	WerFault.exe	b78bd30ade81b7b09db93b23417d2c4bc826b8c79a185c6b721f3bc287a653c0.exe
1888	3272	WerFault.exe	b78bd30ade81b7b09db93b23417d2c4bc826b8c79a185c6b721f3bc287a653c0.exe
4008	3272	WerFault.exe	b78bd30ade81b7b09db93b23417d2c4bc826b8c79a185c6b721f3bc287a653c0.exe
5092	3272	WerFault.exe	b78bd30ade81b7b09db93b23417d2c4bc826b8c79a185c6b721f3bc287a653c0.exe
1252	3272	WerFault.exe	b78bd30ade81b7b09db93b23417d2c4bc826b8c79a185c6b721f3bc287a653c0.exe
3704	3272	WerFault.exe	b78bd30ade81b7b09db93b23417d2c4bc826b8c79a185c6b721f3bc287a653c0.exe
1996	3272	WerFault.exe	b78bd30ade81b7b09db93b23417d2c4bc826b8c79a185c6b721f3bc287a653c0.exe

Kills process with taskkill 1 IoCs
evasion

Processes:

taskkill.exe

pid process

3736 taskkill.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

taskkill.exe

description pid process

Token: SeDebugPrivilege 3736 taskkill.exe

pid	process
3736	taskkill.exe

description	pid	process
Token: SeDebugPrivilege	3736	taskkill.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

b78bd30ade81b7b09db93b23417d2c4bc826b8c79a185c6b721f3bc287a653c0.execmd.exe

description	pid	process	target process
PID 3272 wrote to memory of 2572	3272	b78bd30ade81b7b09db93b23417d2c4bc826b8c79a185c6b721f3bc287a653c0.exe	cmd.exe
PID 3272 wrote to memory of 2572	3272	b78bd30ade81b7b09db93b23417d2c4bc826b8c79a185c6b721f3bc287a653c0.exe	cmd.exe
PID 3272 wrote to memory of 2572	3272	b78bd30ade81b7b09db93b23417d2c4bc826b8c79a185c6b721f3bc287a653c0.exe	cmd.exe
PID 2572 wrote to memory of 3736	2572	cmd.exe	taskkill.exe
PID 2572 wrote to memory of 3736	2572	cmd.exe	taskkill.exe
PID 2572 wrote to memory of 3736	2572	cmd.exe	taskkill.exe

C:\Users\Admin\AppData\Local\Temp\b78bd30ade81b7b09db93b23417d2c4bc826b8c79a185c6b721f3bc287a653c0.exe
"C:\Users\Admin\AppData\Local\Temp\b78bd30ade81b7b09db93b23417d2c4bc826b8c79a185c6b721f3bc287a653c0.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:3272

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3272 -s 480
2⤵
- Program crash
PID:2392

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3272 -s 484
2⤵
- Program crash
PID:1180

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3272 -s 780
2⤵
- Program crash
PID:4508

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3272 -s 800
2⤵
- Program crash
PID:4740

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3272 -s 832
2⤵
- Program crash
PID:1888

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3272 -s 864
2⤵
- Program crash
PID:4008

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3272 -s 984
2⤵
- Program crash
PID:5092

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3272 -s 1068
2⤵
- Program crash
PID:1252

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3272 -s 1444
2⤵
- Program crash
PID:3704

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c taskkill /im "b78bd30ade81b7b09db93b23417d2c4bc826b8c79a185c6b721f3bc287a653c0.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\b78bd30ade81b7b09db93b23417d2c4bc826b8c79a185c6b721f3bc287a653c0.exe" & exit
2⤵
- Suspicious use of WriteProcessMemory
PID:2572

C:\Windows\SysWOW64\taskkill.exe
taskkill /im "b78bd30ade81b7b09db93b23417d2c4bc826b8c79a185c6b721f3bc287a653c0.exe" /f
3⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
PID:3736

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3272 -s 1348
2⤵
- Program crash
PID:1996

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3272 -ip 3272
1⤵
PID:4032

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 496 -p 3272 -ip 3272
1⤵
PID:3324

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 416 -p 3272 -ip 3272
1⤵
PID:484

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 520 -p 3272 -ip 3272
1⤵
PID:2452

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 504 -p 3272 -ip 3272
1⤵
PID:3620

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 512 -p 3272 -ip 3272
1⤵
PID:4760

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 480 -p 3272 -ip 3272
1⤵
PID:380

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 532 -p 3272 -ip 3272
1⤵
PID:1776

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 520 -p 3272 -ip 3272
1⤵
PID:1860

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 504 -p 3272 -ip 3272
1⤵
PID:1184

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

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Downloads

memory/3272-1-0x0000000002FD0000-0x00000000030D0000-memory.dmp

Filesize
1024KB

Download
memory/3272-3-0x0000000000400000-0x0000000000440000-memory.dmp

Filesize
256KB

Download
memory/3272-2-0x00000000049B0000-0x00000000049EC000-memory.dmp

Filesize
240KB

Download
memory/3272-7-0x0000000000400000-0x0000000000440000-memory.dmp

Filesize
256KB

Download
memory/3272-6-0x0000000000400000-0x0000000002CAD000-memory.dmp

Filesize
40.7MB

Download

Analysis

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