gcleaner | 428b3eb43db64df9b37e2909d12d25cde854e0b71844096c3040c306325bd384

General

Target

428b3eb43db64df9b37e2909d12d25cde854e0b71844096c3040c306325bd384.exe
Size

370KB
MD5

b4e105edb08c670eaad4233d15dd64fe
SHA1

7ed606598c0d0663786d7c1fb60ea3bacba3c547
SHA256

428b3eb43db64df9b37e2909d12d25cde854e0b71844096c3040c306325bd384
SHA512

e15156bc41e6c06272d33f5ce985dc3d1cddfb5dceb9d6807a7babc5620f49c444cde952174f870090f0fe851f52494d907112f1ef3eaff8be97db26e697cc62
SSDEEP

6144:HSLkhCVqrBsd+kgzXBwQ4o53CI8sSSSSSSScgv5ud0:y44VC+dQzXujJ

Score

10^/10

gcleaner loader

Malware Config

Extracted

Family

gcleaner

C2

185.172.128.90

185.172.128.69

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
308	4144	WerFault.exe	428b3eb43db64df9b37e2909d12d25cde854e0b71844096c3040c306325bd384.exe
212	4144	WerFault.exe	428b3eb43db64df9b37e2909d12d25cde854e0b71844096c3040c306325bd384.exe
4416	4144	WerFault.exe	428b3eb43db64df9b37e2909d12d25cde854e0b71844096c3040c306325bd384.exe
4376	4144	WerFault.exe	428b3eb43db64df9b37e2909d12d25cde854e0b71844096c3040c306325bd384.exe
2876	4144	WerFault.exe	428b3eb43db64df9b37e2909d12d25cde854e0b71844096c3040c306325bd384.exe
4916	4144	WerFault.exe	428b3eb43db64df9b37e2909d12d25cde854e0b71844096c3040c306325bd384.exe
2768	4144	WerFault.exe	428b3eb43db64df9b37e2909d12d25cde854e0b71844096c3040c306325bd384.exe
4520	4144	WerFault.exe	428b3eb43db64df9b37e2909d12d25cde854e0b71844096c3040c306325bd384.exe

Kills process with taskkill 1 IoCs
evasion

Processes:

taskkill.exe

pid process

2348 taskkill.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

taskkill.exe

description pid process

Token: SeDebugPrivilege 2348 taskkill.exe

pid	process
2348	taskkill.exe

description	pid	process
Token: SeDebugPrivilege	2348	taskkill.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

428b3eb43db64df9b37e2909d12d25cde854e0b71844096c3040c306325bd384.execmd.exe

description	pid	process	target process
PID 4144 wrote to memory of 3092	4144	428b3eb43db64df9b37e2909d12d25cde854e0b71844096c3040c306325bd384.exe	cmd.exe
PID 4144 wrote to memory of 3092	4144	428b3eb43db64df9b37e2909d12d25cde854e0b71844096c3040c306325bd384.exe	cmd.exe
PID 4144 wrote to memory of 3092	4144	428b3eb43db64df9b37e2909d12d25cde854e0b71844096c3040c306325bd384.exe	cmd.exe
PID 3092 wrote to memory of 2348	3092	cmd.exe	taskkill.exe
PID 3092 wrote to memory of 2348	3092	cmd.exe	taskkill.exe
PID 3092 wrote to memory of 2348	3092	cmd.exe	taskkill.exe

C:\Users\Admin\AppData\Local\Temp\428b3eb43db64df9b37e2909d12d25cde854e0b71844096c3040c306325bd384.exe
"C:\Users\Admin\AppData\Local\Temp\428b3eb43db64df9b37e2909d12d25cde854e0b71844096c3040c306325bd384.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:4144

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 4144 -s 760
2⤵
- Program crash
PID:308

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 4144 -s 808
2⤵
- Program crash
PID:212

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 4144 -s 856
2⤵
- Program crash
PID:4416

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 4144 -s 732
2⤵
- Program crash
PID:4376

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 4144 -s 972
2⤵
- Program crash
PID:2876

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 4144 -s 1112
2⤵
- Program crash
PID:4916

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 4144 -s 1080
2⤵
- Program crash
PID:2768

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 4144 -s 1276
2⤵
- Program crash
PID:4520

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c taskkill /im "428b3eb43db64df9b37e2909d12d25cde854e0b71844096c3040c306325bd384.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\428b3eb43db64df9b37e2909d12d25cde854e0b71844096c3040c306325bd384.exe" & exit
2⤵
- Suspicious use of WriteProcessMemory
PID:3092

C:\Windows\SysWOW64\taskkill.exe
taskkill /im "428b3eb43db64df9b37e2909d12d25cde854e0b71844096c3040c306325bd384.exe" /f
3⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
PID:2348

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

C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\VSH5XF98\advdlc[1].htm
Filesize
1B

MD5
cfcd208495d565ef66e7dff9f98764da

SHA1
b6589fc6ab0dc82cf12099d1c2d40ab994e8410c

SHA256
5feceb66ffc86f38d952786c6d696c79c2dbc239dd4e91b46729d73a27fb57e9

SHA512
31bca02094eb78126a517b206a88c73cfa9ec6f704c7030d18212cace820f025f00bf0ea68dbf3f3a5436ca63b53bf7bf80ad8d5de7d8359d0b7fed9dbc3ab99

Download Submit
memory/4144-2-0x0000000001970000-0x000000000199D000-memory.dmp

Filesize
180KB

Download
memory/4144-3-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/4144-1-0x0000000001B60000-0x0000000001C60000-memory.dmp

Filesize
1024KB

Download
memory/4144-7-0x0000000000400000-0x0000000001807000-memory.dmp

Filesize
20.0MB

Download
memory/4144-11-0x0000000001B60000-0x0000000001C60000-memory.dmp

Filesize
1024KB

Download
memory/4144-14-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/4144-23-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/4144-22-0x0000000000400000-0x0000000001807000-memory.dmp

Filesize
20.0MB

Download

Analysis

Sharing