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
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
4084	3580	WerFault.exe	a687c9797742a530c9ceb0749a408fa7d1248ca9bc8d44f49c30bbdf98841356.exe
4984	3580	WerFault.exe	a687c9797742a530c9ceb0749a408fa7d1248ca9bc8d44f49c30bbdf98841356.exe
4768	3580	WerFault.exe	a687c9797742a530c9ceb0749a408fa7d1248ca9bc8d44f49c30bbdf98841356.exe
2404	3580	WerFault.exe	a687c9797742a530c9ceb0749a408fa7d1248ca9bc8d44f49c30bbdf98841356.exe
3708	3580	WerFault.exe	a687c9797742a530c9ceb0749a408fa7d1248ca9bc8d44f49c30bbdf98841356.exe
4672	3580	WerFault.exe	a687c9797742a530c9ceb0749a408fa7d1248ca9bc8d44f49c30bbdf98841356.exe
2616	3580	WerFault.exe	a687c9797742a530c9ceb0749a408fa7d1248ca9bc8d44f49c30bbdf98841356.exe
4664	3580	WerFault.exe	a687c9797742a530c9ceb0749a408fa7d1248ca9bc8d44f49c30bbdf98841356.exe
788	3580	WerFault.exe	a687c9797742a530c9ceb0749a408fa7d1248ca9bc8d44f49c30bbdf98841356.exe
4528	3580	WerFault.exe	a687c9797742a530c9ceb0749a408fa7d1248ca9bc8d44f49c30bbdf98841356.exe

Kills process with taskkill 1 IoCs
evasion

Processes:

taskkill.exe

pid process

2248 taskkill.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

taskkill.exe

description pid process

Token: SeDebugPrivilege 2248 taskkill.exe

pid	process
2248	taskkill.exe

description	pid	process
Token: SeDebugPrivilege	2248	taskkill.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

a687c9797742a530c9ceb0749a408fa7d1248ca9bc8d44f49c30bbdf98841356.execmd.exe

description	pid	process	target process
PID 3580 wrote to memory of 4224	3580	a687c9797742a530c9ceb0749a408fa7d1248ca9bc8d44f49c30bbdf98841356.exe	cmd.exe
PID 3580 wrote to memory of 4224	3580	a687c9797742a530c9ceb0749a408fa7d1248ca9bc8d44f49c30bbdf98841356.exe	cmd.exe
PID 3580 wrote to memory of 4224	3580	a687c9797742a530c9ceb0749a408fa7d1248ca9bc8d44f49c30bbdf98841356.exe	cmd.exe
PID 4224 wrote to memory of 2248	4224	cmd.exe	taskkill.exe
PID 4224 wrote to memory of 2248	4224	cmd.exe	taskkill.exe
PID 4224 wrote to memory of 2248	4224	cmd.exe	taskkill.exe

C:\Users\Admin\AppData\Local\Temp\a687c9797742a530c9ceb0749a408fa7d1248ca9bc8d44f49c30bbdf98841356.exe
"C:\Users\Admin\AppData\Local\Temp\a687c9797742a530c9ceb0749a408fa7d1248ca9bc8d44f49c30bbdf98841356.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:3580

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3580 -s 480
2⤵
- Program crash
PID:4084

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3580 -s 484
2⤵
- Program crash
PID:4984

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3580 -s 780
2⤵
- Program crash
PID:4768

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3580 -s 820
2⤵
- Program crash
PID:2404

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3580 -s 820
2⤵
- Program crash
PID:3708

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3580 -s 860
2⤵
- Program crash
PID:4672

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3580 -s 984
2⤵
- Program crash
PID:2616

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3580 -s 1068
2⤵
- Program crash
PID:4664

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3580 -s 1440
2⤵
- Program crash
PID:788

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:4224

C:\Windows\SysWOW64\taskkill.exe
taskkill /im "a687c9797742a530c9ceb0749a408fa7d1248ca9bc8d44f49c30bbdf98841356.exe" /f
3⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
PID:2248

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3580 -s 1472
2⤵
- Program crash
PID:4528

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3580 -ip 3580
1⤵
PID:2104

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 416 -p 3580 -ip 3580
1⤵
PID:5016

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 3580 -ip 3580
1⤵
PID:5080

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 356 -p 3580 -ip 3580
1⤵
PID:2744

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 476 -p 3580 -ip 3580
1⤵
PID:636

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 356 -p 3580 -ip 3580
1⤵
PID:1068

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 3580 -ip 3580
1⤵
PID:1508

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 512 -p 3580 -ip 3580
1⤵
PID:3308

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 496 -p 3580 -ip 3580
1⤵
PID:488

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 436 -p 3580 -ip 3580
1⤵
PID:5112

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/3580-1-0x00000000005A0000-0x00000000006A0000-memory.dmp

Filesize
1024KB

Download
memory/3580-3-0x0000000000400000-0x0000000000440000-memory.dmp

Filesize
256KB

Download
memory/3580-2-0x00000000021B0000-0x00000000021EC000-memory.dmp

Filesize
240KB

Download
memory/3580-6-0x0000000000400000-0x0000000000491000-memory.dmp

Filesize
580KB

Download
memory/3580-7-0x0000000000400000-0x0000000000440000-memory.dmp

Filesize
256KB

Download

Analysis

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