gcleaner | a5f4270eed2a341acb58267cfaca48cfd25d5d5921b6f4d7e856ef4b5fd85dbe

General

Target

a5f4270eed2a341acb58267cfaca48cfd25d5d5921b6f4d7e856ef4b5fd85dbe.exe
Size

220KB
MD5

cd0fd465ea4fd58cf58413dda8114989
SHA1

2ae37c14fa393dcbd68a57a49e3eecacf5be0b50
SHA256

a5f4270eed2a341acb58267cfaca48cfd25d5d5921b6f4d7e856ef4b5fd85dbe
SHA512

b05f3e05762a86aa672d3f4bed9dde6be4e9c946c02d18f470ee2542a1d5da1fa5eb4e6a33bffa8ba39e754e34cb53aa1accca8107aae218001c1a1110af371f
SSDEEP

3072:Kj9Wt0dASUNee76IR+tXe/ZHwYjpu8lULeJQ7k7wE65/:2cgUNj2DtXe/ZQKu7k7W

Score

10^/10

gcleaner loader

Malware Config

Extracted

Family

gcleaner

C2

185.172.128.90

5.42.65.64

Attributes

url_path
/advdlc.php

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 8 IoCs

Processes:

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

pid	pid_target	process	target process
4284	4304	WerFault.exe	a5f4270eed2a341acb58267cfaca48cfd25d5d5921b6f4d7e856ef4b5fd85dbe.exe
4464	4304	WerFault.exe	a5f4270eed2a341acb58267cfaca48cfd25d5d5921b6f4d7e856ef4b5fd85dbe.exe
2536	4304	WerFault.exe	a5f4270eed2a341acb58267cfaca48cfd25d5d5921b6f4d7e856ef4b5fd85dbe.exe
4176	4304	WerFault.exe	a5f4270eed2a341acb58267cfaca48cfd25d5d5921b6f4d7e856ef4b5fd85dbe.exe
1524	4304	WerFault.exe	a5f4270eed2a341acb58267cfaca48cfd25d5d5921b6f4d7e856ef4b5fd85dbe.exe
4744	4304	WerFault.exe	a5f4270eed2a341acb58267cfaca48cfd25d5d5921b6f4d7e856ef4b5fd85dbe.exe
1812	4304	WerFault.exe	a5f4270eed2a341acb58267cfaca48cfd25d5d5921b6f4d7e856ef4b5fd85dbe.exe
2756	4304	WerFault.exe	a5f4270eed2a341acb58267cfaca48cfd25d5d5921b6f4d7e856ef4b5fd85dbe.exe

Kills process with taskkill 1 IoCs
evasion

Processes:

taskkill.exe

pid process

228 taskkill.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

taskkill.exe

description pid process

Token: SeDebugPrivilege 228 taskkill.exe

pid	process
228	taskkill.exe

description	pid	process
Token: SeDebugPrivilege	228	taskkill.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

a5f4270eed2a341acb58267cfaca48cfd25d5d5921b6f4d7e856ef4b5fd85dbe.execmd.exe

description	pid	process	target process
PID 4304 wrote to memory of 280	4304	a5f4270eed2a341acb58267cfaca48cfd25d5d5921b6f4d7e856ef4b5fd85dbe.exe	cmd.exe
PID 4304 wrote to memory of 280	4304	a5f4270eed2a341acb58267cfaca48cfd25d5d5921b6f4d7e856ef4b5fd85dbe.exe	cmd.exe
PID 4304 wrote to memory of 280	4304	a5f4270eed2a341acb58267cfaca48cfd25d5d5921b6f4d7e856ef4b5fd85dbe.exe	cmd.exe
PID 280 wrote to memory of 228	280	cmd.exe	taskkill.exe
PID 280 wrote to memory of 228	280	cmd.exe	taskkill.exe
PID 280 wrote to memory of 228	280	cmd.exe	taskkill.exe

C:\Users\Admin\AppData\Local\Temp\a5f4270eed2a341acb58267cfaca48cfd25d5d5921b6f4d7e856ef4b5fd85dbe.exe
"C:\Users\Admin\AppData\Local\Temp\a5f4270eed2a341acb58267cfaca48cfd25d5d5921b6f4d7e856ef4b5fd85dbe.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:4304

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 4304 -s 772
2⤵
- Program crash
PID:4284

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 4304 -s 772
2⤵
- Program crash
PID:4464

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 4304 -s 824
2⤵
- Program crash
PID:2536

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 4304 -s 804
2⤵
- Program crash
PID:4176

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 4304 -s 976
2⤵
- Program crash
PID:1524

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 4304 -s 1080
2⤵
- Program crash
PID:4744

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 4304 -s 1436
2⤵
- Program crash
PID:1812

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c taskkill /im "a5f4270eed2a341acb58267cfaca48cfd25d5d5921b6f4d7e856ef4b5fd85dbe.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\a5f4270eed2a341acb58267cfaca48cfd25d5d5921b6f4d7e856ef4b5fd85dbe.exe" & exit
2⤵
- Suspicious use of WriteProcessMemory
PID:280

C:\Windows\SysWOW64\taskkill.exe
taskkill /im "a5f4270eed2a341acb58267cfaca48cfd25d5d5921b6f4d7e856ef4b5fd85dbe.exe" /f
3⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
PID:228

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 4304 -s 1536
2⤵
- Program crash
PID:2756

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4304 -ip 4304
1⤵
PID:1708

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 448 -p 4304 -ip 4304
1⤵
PID:3052

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 496 -p 4304 -ip 4304
1⤵
PID:1748

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 520 -p 4304 -ip 4304
1⤵
PID:3404

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 436 -p 4304 -ip 4304
1⤵
PID:1264

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 480 -p 4304 -ip 4304
1⤵
PID:3924

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 4304 -ip 4304
1⤵
PID:1444

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 440 -p 4304 -ip 4304
1⤵
PID:4988

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/4304-2-0x00000000021F0000-0x000000000221D000-memory.dmp

Filesize
180KB

Download
memory/4304-1-0x0000000002250000-0x0000000002350000-memory.dmp

Filesize
1024KB

Download
memory/4304-3-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/4304-7-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/4304-6-0x00000000021F0000-0x000000000221D000-memory.dmp

Filesize
180KB

Download
memory/4304-5-0x0000000000400000-0x0000000001F82000-memory.dmp

Filesize
27.5MB

Download

Analysis

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