gcleaner | 28bf77e1b47514cb7066616979e44e1830ad2e2dddf73b3cd0b5f970809819cb

General

Target

28bf77e1b47514cb7066616979e44e1830ad2e2dddf73b3cd0b5f970809819cb.exe
Size

293KB
MD5

2fc0eb014ffb0cb4e057081e6f1e077b
SHA1

30a6476971d2b8f2b8faffa9cb16e509cb5b26c9
SHA256

28bf77e1b47514cb7066616979e44e1830ad2e2dddf73b3cd0b5f970809819cb
SHA512

25448016c8ac969313353aa6158cac89cac84dd0172b867a25825e3342cb5d486eb792acc921922e9eafaca113e0a4fe637c9377876487f77203cfd6195f5560
SSDEEP

6144:MSLfImKBOQvi54l4CHurToMf/OQhtTa1y8SSSSSSS:9DVKBSSK7ToI2gtm

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
168	2804	WerFault.exe	28bf77e1b47514cb7066616979e44e1830ad2e2dddf73b3cd0b5f970809819cb.exe
924	2804	WerFault.exe	28bf77e1b47514cb7066616979e44e1830ad2e2dddf73b3cd0b5f970809819cb.exe
2924	2804	WerFault.exe	28bf77e1b47514cb7066616979e44e1830ad2e2dddf73b3cd0b5f970809819cb.exe
4684	2804	WerFault.exe	28bf77e1b47514cb7066616979e44e1830ad2e2dddf73b3cd0b5f970809819cb.exe
2164	2804	WerFault.exe	28bf77e1b47514cb7066616979e44e1830ad2e2dddf73b3cd0b5f970809819cb.exe
5016	2804	WerFault.exe	28bf77e1b47514cb7066616979e44e1830ad2e2dddf73b3cd0b5f970809819cb.exe
1148	2804	WerFault.exe	28bf77e1b47514cb7066616979e44e1830ad2e2dddf73b3cd0b5f970809819cb.exe
4900	2804	WerFault.exe	28bf77e1b47514cb7066616979e44e1830ad2e2dddf73b3cd0b5f970809819cb.exe

Kills process with taskkill 1 IoCs
evasion

Processes:

taskkill.exe

pid process

4356 taskkill.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

taskkill.exe

description pid process

Token: SeDebugPrivilege 4356 taskkill.exe

pid	process
4356	taskkill.exe

description	pid	process
Token: SeDebugPrivilege	4356	taskkill.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

28bf77e1b47514cb7066616979e44e1830ad2e2dddf73b3cd0b5f970809819cb.execmd.exe

description	pid	process	target process
PID 2804 wrote to memory of 4912	2804	28bf77e1b47514cb7066616979e44e1830ad2e2dddf73b3cd0b5f970809819cb.exe	cmd.exe
PID 2804 wrote to memory of 4912	2804	28bf77e1b47514cb7066616979e44e1830ad2e2dddf73b3cd0b5f970809819cb.exe	cmd.exe
PID 2804 wrote to memory of 4912	2804	28bf77e1b47514cb7066616979e44e1830ad2e2dddf73b3cd0b5f970809819cb.exe	cmd.exe
PID 4912 wrote to memory of 4356	4912	cmd.exe	taskkill.exe
PID 4912 wrote to memory of 4356	4912	cmd.exe	taskkill.exe
PID 4912 wrote to memory of 4356	4912	cmd.exe	taskkill.exe

C:\Users\Admin\AppData\Local\Temp\28bf77e1b47514cb7066616979e44e1830ad2e2dddf73b3cd0b5f970809819cb.exe
"C:\Users\Admin\AppData\Local\Temp\28bf77e1b47514cb7066616979e44e1830ad2e2dddf73b3cd0b5f970809819cb.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:2804

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2804 -s 760
2⤵
- Program crash
PID:168

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2804 -s 772
2⤵
- Program crash
PID:924

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2804 -s 840
2⤵
- Program crash
PID:2924

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2804 -s 900
2⤵
- Program crash
PID:4684

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2804 -s 944
2⤵
- Program crash
PID:2164

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2804 -s 1092
2⤵
- Program crash
PID:5016

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2804 -s 1156
2⤵
- Program crash
PID:1148

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2804 -s 1276
2⤵
- Program crash
PID:4900

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c taskkill /im "28bf77e1b47514cb7066616979e44e1830ad2e2dddf73b3cd0b5f970809819cb.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\28bf77e1b47514cb7066616979e44e1830ad2e2dddf73b3cd0b5f970809819cb.exe" & exit
2⤵
- Suspicious use of WriteProcessMemory
PID:4912

C:\Windows\SysWOW64\taskkill.exe
taskkill /im "28bf77e1b47514cb7066616979e44e1830ad2e2dddf73b3cd0b5f970809819cb.exe" /f
3⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
PID:4356

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

C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\XCFODRP5\advdlc[1].htm
Filesize
1B

MD5
cfcd208495d565ef66e7dff9f98764da

SHA1
b6589fc6ab0dc82cf12099d1c2d40ab994e8410c

SHA256
5feceb66ffc86f38d952786c6d696c79c2dbc239dd4e91b46729d73a27fb57e9

SHA512
31bca02094eb78126a517b206a88c73cfa9ec6f704c7030d18212cace820f025f00bf0ea68dbf3f3a5436ca63b53bf7bf80ad8d5de7d8359d0b7fed9dbc3ab99

Download Submit
memory/2804-1-0x0000000001C50000-0x0000000001D50000-memory.dmp

Filesize
1024KB

Download
memory/2804-2-0x00000000037E0000-0x000000000380D000-memory.dmp

Filesize
180KB

Download
memory/2804-3-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2804-8-0x0000000000400000-0x0000000001BC5000-memory.dmp

Filesize
23.8MB

Download
memory/2804-12-0x0000000001C50000-0x0000000001D50000-memory.dmp

Filesize
1024KB

Download
memory/2804-15-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2804-22-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2804-21-0x0000000000400000-0x0000000001BC5000-memory.dmp

Filesize
23.8MB

Download

Analysis

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