gcleaner | ef63c07c903abdfa350d4827343845f72c9685369182f45a1c6d12e199781003

General

Target

ef63c07c903abdfa350d4827343845f72c9685369182f45a1c6d12e199781003.exe
Size

288KB
MD5

0f092d084b59e8bc15eb0bc5a4fc8af6
SHA1

bacb2fdd56370757e8a3de61ac1ccafd05eaad12
SHA256

ef63c07c903abdfa350d4827343845f72c9685369182f45a1c6d12e199781003
SHA512

ae25f76d1995d7c567f2f1b92aecdeb7c27c1cfaf55a21c69dfe4577538a5f1ed4af8ad9fd9014fbfaa2b61f48ffebdbdff22129730b4b86a1c2690a6453848e
SSDEEP

6144:96bUQ6JV47ELMcNFsJzRhHjFWKo0btEfKZ40:0UQ6J8GnsJzDQV0Z3q0

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
4876	3536	WerFault.exe	ef63c07c903abdfa350d4827343845f72c9685369182f45a1c6d12e199781003.exe
4092	3536	WerFault.exe	ef63c07c903abdfa350d4827343845f72c9685369182f45a1c6d12e199781003.exe
564	3536	WerFault.exe	ef63c07c903abdfa350d4827343845f72c9685369182f45a1c6d12e199781003.exe
392	3536	WerFault.exe	ef63c07c903abdfa350d4827343845f72c9685369182f45a1c6d12e199781003.exe
3104	3536	WerFault.exe	ef63c07c903abdfa350d4827343845f72c9685369182f45a1c6d12e199781003.exe
4776	3536	WerFault.exe	ef63c07c903abdfa350d4827343845f72c9685369182f45a1c6d12e199781003.exe
4208	3536	WerFault.exe	ef63c07c903abdfa350d4827343845f72c9685369182f45a1c6d12e199781003.exe
2516	3536	WerFault.exe	ef63c07c903abdfa350d4827343845f72c9685369182f45a1c6d12e199781003.exe
3520	3536	WerFault.exe	ef63c07c903abdfa350d4827343845f72c9685369182f45a1c6d12e199781003.exe
3528	3536	WerFault.exe	ef63c07c903abdfa350d4827343845f72c9685369182f45a1c6d12e199781003.exe

Kills process with taskkill 1 IoCs
evasion

Processes:

taskkill.exe

pid process

4416 taskkill.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

taskkill.exe

description pid process

Token: SeDebugPrivilege 4416 taskkill.exe

pid	process
4416	taskkill.exe

description	pid	process
Token: SeDebugPrivilege	4416	taskkill.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

ef63c07c903abdfa350d4827343845f72c9685369182f45a1c6d12e199781003.execmd.exe

description	pid	process	target process
PID 3536 wrote to memory of 1868	3536	ef63c07c903abdfa350d4827343845f72c9685369182f45a1c6d12e199781003.exe	cmd.exe
PID 3536 wrote to memory of 1868	3536	ef63c07c903abdfa350d4827343845f72c9685369182f45a1c6d12e199781003.exe	cmd.exe
PID 3536 wrote to memory of 1868	3536	ef63c07c903abdfa350d4827343845f72c9685369182f45a1c6d12e199781003.exe	cmd.exe
PID 1868 wrote to memory of 4416	1868	cmd.exe	taskkill.exe
PID 1868 wrote to memory of 4416	1868	cmd.exe	taskkill.exe
PID 1868 wrote to memory of 4416	1868	cmd.exe	taskkill.exe

C:\Users\Admin\AppData\Local\Temp\ef63c07c903abdfa350d4827343845f72c9685369182f45a1c6d12e199781003.exe
"C:\Users\Admin\AppData\Local\Temp\ef63c07c903abdfa350d4827343845f72c9685369182f45a1c6d12e199781003.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:3536

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3536 -s 484
2⤵
- Program crash
PID:4876

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3536 -s 488
2⤵
- Program crash
PID:4092

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3536 -s 780
2⤵
- Program crash
PID:564

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3536 -s 800
2⤵
- Program crash
PID:392

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3536 -s 836
2⤵
- Program crash
PID:3104

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3536 -s 800
2⤵
- Program crash
PID:4776

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3536 -s 984
2⤵
- Program crash
PID:4208

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3536 -s 988
2⤵
- Program crash
PID:2516

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3536 -s 1436
2⤵
- Program crash
PID:3520

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c taskkill /im "ef63c07c903abdfa350d4827343845f72c9685369182f45a1c6d12e199781003.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\ef63c07c903abdfa350d4827343845f72c9685369182f45a1c6d12e199781003.exe" & exit
2⤵
- Suspicious use of WriteProcessMemory
PID:1868

C:\Windows\SysWOW64\taskkill.exe
taskkill /im "ef63c07c903abdfa350d4827343845f72c9685369182f45a1c6d12e199781003.exe" /f
3⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
PID:4416

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3536 -s 1468
2⤵
- Program crash
PID:3528

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 412 -p 3536 -ip 3536
1⤵
PID:2428

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 508 -p 3536 -ip 3536
1⤵
PID:3024

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 524 -p 3536 -ip 3536
1⤵
PID:3412

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 3536 -ip 3536
1⤵
PID:4768

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 476 -p 3536 -ip 3536
1⤵
PID:4648

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 524 -p 3536 -ip 3536
1⤵
PID:4628

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 516 -p 3536 -ip 3536
1⤵
PID:4744

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3536 -ip 3536
1⤵
PID:2416

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 360 -p 3536 -ip 3536
1⤵
PID:3628

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 508 -p 3536 -ip 3536
1⤵
PID:2272

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/3536-1-0x0000000000640000-0x0000000000740000-memory.dmp

Filesize
1024KB

Download
memory/3536-3-0x0000000000400000-0x0000000000440000-memory.dmp

Filesize
256KB

Download
memory/3536-2-0x00000000021A0000-0x00000000021DC000-memory.dmp

Filesize
240KB

Download
memory/3536-7-0x0000000000400000-0x0000000000440000-memory.dmp

Filesize
256KB

Download
memory/3536-8-0x00000000021A0000-0x00000000021DC000-memory.dmp

Filesize
240KB

Download
memory/3536-6-0x0000000000400000-0x0000000000492000-memory.dmp

Filesize
584KB

Download

Analysis

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