gcleaner | 0cfb18954dfe403c91e0723700c8e5fa1e9d8c01ef977d6886a83e2c7546aad8

General

Target

0cfb18954dfe403c91e0723700c8e5fa1e9d8c01ef977d6886a83e2c7546aad8.exe
Size

293KB
MD5

ff42ed76197d373d3d99e7dd484e9102
SHA1

e03ae393c6b8caeb18d61b6d493d26b75a6a96f2
SHA256

0cfb18954dfe403c91e0723700c8e5fa1e9d8c01ef977d6886a83e2c7546aad8
SHA512

e1984a1d6823779049a0478dda08306a0dead111a9fba37d40790a9628f18d3f593ad83a36535f9842356f10b35943692c72ba90a6e0f4dbc9ccc7a097033d64
SSDEEP

6144:qx6tjTwiPfN/TDVPMQryiamwFwoL+wg/S+u0Hd/9GYzFT:qx2Ei3N/fVPMCv2FVX29n

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
900	3552	WerFault.exe	0cfb18954dfe403c91e0723700c8e5fa1e9d8c01ef977d6886a83e2c7546aad8.exe
1880	3552	WerFault.exe	0cfb18954dfe403c91e0723700c8e5fa1e9d8c01ef977d6886a83e2c7546aad8.exe
4764	3552	WerFault.exe	0cfb18954dfe403c91e0723700c8e5fa1e9d8c01ef977d6886a83e2c7546aad8.exe
3976	3552	WerFault.exe	0cfb18954dfe403c91e0723700c8e5fa1e9d8c01ef977d6886a83e2c7546aad8.exe
3736	3552	WerFault.exe	0cfb18954dfe403c91e0723700c8e5fa1e9d8c01ef977d6886a83e2c7546aad8.exe
1700	3552	WerFault.exe	0cfb18954dfe403c91e0723700c8e5fa1e9d8c01ef977d6886a83e2c7546aad8.exe
4480	3552	WerFault.exe	0cfb18954dfe403c91e0723700c8e5fa1e9d8c01ef977d6886a83e2c7546aad8.exe
2548	3552	WerFault.exe	0cfb18954dfe403c91e0723700c8e5fa1e9d8c01ef977d6886a83e2c7546aad8.exe
1016	3552	WerFault.exe	0cfb18954dfe403c91e0723700c8e5fa1e9d8c01ef977d6886a83e2c7546aad8.exe
1392	3552	WerFault.exe	0cfb18954dfe403c91e0723700c8e5fa1e9d8c01ef977d6886a83e2c7546aad8.exe

Kills process with taskkill 1 IoCs
evasion

Processes:

taskkill.exe

pid process

3556 taskkill.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

taskkill.exe

description pid process

Token: SeDebugPrivilege 3556 taskkill.exe

pid	process
3556	taskkill.exe

description	pid	process
Token: SeDebugPrivilege	3556	taskkill.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

0cfb18954dfe403c91e0723700c8e5fa1e9d8c01ef977d6886a83e2c7546aad8.execmd.exe

description	pid	process	target process
PID 3552 wrote to memory of 2080	3552	0cfb18954dfe403c91e0723700c8e5fa1e9d8c01ef977d6886a83e2c7546aad8.exe	cmd.exe
PID 3552 wrote to memory of 2080	3552	0cfb18954dfe403c91e0723700c8e5fa1e9d8c01ef977d6886a83e2c7546aad8.exe	cmd.exe
PID 3552 wrote to memory of 2080	3552	0cfb18954dfe403c91e0723700c8e5fa1e9d8c01ef977d6886a83e2c7546aad8.exe	cmd.exe
PID 2080 wrote to memory of 3556	2080	cmd.exe	taskkill.exe
PID 2080 wrote to memory of 3556	2080	cmd.exe	taskkill.exe
PID 2080 wrote to memory of 3556	2080	cmd.exe	taskkill.exe

C:\Users\Admin\AppData\Local\Temp\0cfb18954dfe403c91e0723700c8e5fa1e9d8c01ef977d6886a83e2c7546aad8.exe
"C:\Users\Admin\AppData\Local\Temp\0cfb18954dfe403c91e0723700c8e5fa1e9d8c01ef977d6886a83e2c7546aad8.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:3552

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3552 -s 476
2⤵
- Program crash
PID:900

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3552 -s 536
2⤵
- Program crash
PID:1880

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3552 -s 780
2⤵
- Program crash
PID:4764

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3552 -s 820
2⤵
- Program crash
PID:3976

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3552 -s 796
2⤵
- Program crash
PID:3736

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3552 -s 804
2⤵
- Program crash
PID:1700

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3552 -s 984
2⤵
- Program crash
PID:4480

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3552 -s 1072
2⤵
- Program crash
PID:2548

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3552 -s 1456
2⤵
- Program crash
PID:1016

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c taskkill /im "0cfb18954dfe403c91e0723700c8e5fa1e9d8c01ef977d6886a83e2c7546aad8.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\0cfb18954dfe403c91e0723700c8e5fa1e9d8c01ef977d6886a83e2c7546aad8.exe" & exit
2⤵
- Suspicious use of WriteProcessMemory
PID:2080

C:\Windows\SysWOW64\taskkill.exe
taskkill /im "0cfb18954dfe403c91e0723700c8e5fa1e9d8c01ef977d6886a83e2c7546aad8.exe" /f
3⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
PID:3556

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3552 -s 1520
2⤵
- Program crash
PID:1392

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3552 -ip 3552
1⤵
PID:3112

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 480 -p 3552 -ip 3552
1⤵
PID:4452

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 356 -p 3552 -ip 3552
1⤵
PID:2096

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 504 -p 3552 -ip 3552
1⤵
PID:5044

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 448 -p 3552 -ip 3552
1⤵
PID:1620

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 480 -p 3552 -ip 3552
1⤵
PID:1612

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 536 -p 3552 -ip 3552
1⤵
PID:1724

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 552 -p 3552 -ip 3552
1⤵
PID:4568

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 528 -p 3552 -ip 3552
1⤵
PID:2104

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 564 -p 3552 -ip 3552
1⤵
PID:3520

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

Loading Replay Monitor...

Downloads

memory/3552-1-0x0000000003010000-0x0000000003110000-memory.dmp

Filesize
1024KB

Download
memory/3552-2-0x00000000049B0000-0x00000000049EC000-memory.dmp

Filesize
240KB

Download
memory/3552-3-0x0000000000400000-0x0000000000440000-memory.dmp

Filesize
256KB

Download
memory/3552-8-0x0000000000400000-0x0000000000440000-memory.dmp

Filesize
256KB

Download
memory/3552-7-0x00000000049B0000-0x00000000049EC000-memory.dmp

Filesize
240KB

Download
memory/3552-6-0x0000000000400000-0x0000000002CA9000-memory.dmp

Filesize
40.7MB

Download

Analysis

Sharing