gcleaner | 81ff24729e0f30bc4d82c78b4f004b36a3af841bdb8e8e8d98878ea7badded17

General

Target

81ff24729e0f30bc4d82c78b4f004b36a3af841bdb8e8e8d98878ea7badded17.exe
Size

288KB
MD5

d40b168ab9d25d52e91f20dbf283a162
SHA1

863f9c0b44663557491ca689c4e2903d6943bd42
SHA256

81ff24729e0f30bc4d82c78b4f004b36a3af841bdb8e8e8d98878ea7badded17
SHA512

ed4fba4db33b795fc5b4bfbc676643c7259a8f9a3645c9af72406c0fabfc5383cac8ec406a46cee7692a7af13786afead94f23162bb861e83a3bdce07441c800
SSDEEP

3072:1fJK/2u70bPua1yBj+2nvlApmRqMHYL8VO6Gvqo3eMwc89M/V8iHpcCHoNbmUoZ9:1ozLD0hOYLmO6C5l8O/CiJemUoSyZ40

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

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

Processes:

81ff24729e0f30bc4d82c78b4f004b36a3af841bdb8e8e8d98878ea7badded17.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-3558294865-3673844354-2255444939-1000\Control Panel\International\Geo\Nation	81ff24729e0f30bc4d82c78b4f004b36a3af841bdb8e8e8d98878ea7badded17.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Program crash 11 IoCs

Processes:

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

pid	pid_target	process	target process
1496	3624	WerFault.exe	81ff24729e0f30bc4d82c78b4f004b36a3af841bdb8e8e8d98878ea7badded17.exe
3984	3624	WerFault.exe	81ff24729e0f30bc4d82c78b4f004b36a3af841bdb8e8e8d98878ea7badded17.exe
3896	3624	WerFault.exe	81ff24729e0f30bc4d82c78b4f004b36a3af841bdb8e8e8d98878ea7badded17.exe
2352	3624	WerFault.exe	81ff24729e0f30bc4d82c78b4f004b36a3af841bdb8e8e8d98878ea7badded17.exe
2180	3624	WerFault.exe	81ff24729e0f30bc4d82c78b4f004b36a3af841bdb8e8e8d98878ea7badded17.exe
1780	3624	WerFault.exe	81ff24729e0f30bc4d82c78b4f004b36a3af841bdb8e8e8d98878ea7badded17.exe
4460	3624	WerFault.exe	81ff24729e0f30bc4d82c78b4f004b36a3af841bdb8e8e8d98878ea7badded17.exe
3208	3624	WerFault.exe	81ff24729e0f30bc4d82c78b4f004b36a3af841bdb8e8e8d98878ea7badded17.exe
3664	3624	WerFault.exe	81ff24729e0f30bc4d82c78b4f004b36a3af841bdb8e8e8d98878ea7badded17.exe
392	3624	WerFault.exe	81ff24729e0f30bc4d82c78b4f004b36a3af841bdb8e8e8d98878ea7badded17.exe
3312	3624	WerFault.exe	81ff24729e0f30bc4d82c78b4f004b36a3af841bdb8e8e8d98878ea7badded17.exe

Kills process with taskkill 1 IoCs
evasion

Processes:

taskkill.exe

pid process

1896 taskkill.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

taskkill.exe

description pid process

Token: SeDebugPrivilege 1896 taskkill.exe

pid	process
1896	taskkill.exe

description	pid	process
Token: SeDebugPrivilege	1896	taskkill.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

81ff24729e0f30bc4d82c78b4f004b36a3af841bdb8e8e8d98878ea7badded17.execmd.exe

description	pid	process	target process
PID 3624 wrote to memory of 3668	3624	81ff24729e0f30bc4d82c78b4f004b36a3af841bdb8e8e8d98878ea7badded17.exe	cmd.exe
PID 3624 wrote to memory of 3668	3624	81ff24729e0f30bc4d82c78b4f004b36a3af841bdb8e8e8d98878ea7badded17.exe	cmd.exe
PID 3624 wrote to memory of 3668	3624	81ff24729e0f30bc4d82c78b4f004b36a3af841bdb8e8e8d98878ea7badded17.exe	cmd.exe
PID 3668 wrote to memory of 1896	3668	cmd.exe	taskkill.exe
PID 3668 wrote to memory of 1896	3668	cmd.exe	taskkill.exe
PID 3668 wrote to memory of 1896	3668	cmd.exe	taskkill.exe

C:\Users\Admin\AppData\Local\Temp\81ff24729e0f30bc4d82c78b4f004b36a3af841bdb8e8e8d98878ea7badded17.exe
"C:\Users\Admin\AppData\Local\Temp\81ff24729e0f30bc4d82c78b4f004b36a3af841bdb8e8e8d98878ea7badded17.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:3624

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3624 -s 452
2⤵
- Program crash
PID:1496

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3624 -s 480
2⤵
- Program crash
PID:3984

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3624 -s 748
2⤵
- Program crash
PID:3896

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3624 -s 788
2⤵
- Program crash
PID:2352

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3624 -s 808
2⤵
- Program crash
PID:2180

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3624 -s 788
2⤵
- Program crash
PID:1780

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3624 -s 912
2⤵
- Program crash
PID:4460

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3624 -s 1008
2⤵
- Program crash
PID:3208

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3624 -s 1032
2⤵
- Program crash
PID:3664

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3624 -s 1376
2⤵
- Program crash
PID:392

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c taskkill /im "81ff24729e0f30bc4d82c78b4f004b36a3af841bdb8e8e8d98878ea7badded17.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\81ff24729e0f30bc4d82c78b4f004b36a3af841bdb8e8e8d98878ea7badded17.exe" & exit
2⤵
- Suspicious use of WriteProcessMemory
PID:3668

C:\Windows\SysWOW64\taskkill.exe
taskkill /im "81ff24729e0f30bc4d82c78b4f004b36a3af841bdb8e8e8d98878ea7badded17.exe" /f
3⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
PID:1896

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3624 -s 1400
2⤵
- Program crash
PID:3312

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3624 -ip 3624
1⤵
PID:2488

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 532 -p 3624 -ip 3624
1⤵
PID:532

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 480 -p 3624 -ip 3624
1⤵
PID:224

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 476 -p 3624 -ip 3624
1⤵
PID:4060

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 544 -p 3624 -ip 3624
1⤵
PID:1904

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 548 -p 3624 -ip 3624
1⤵
PID:628

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 548 -p 3624 -ip 3624
1⤵
PID:436

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 576 -p 3624 -ip 3624
1⤵
PID:2468

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 540 -p 3624 -ip 3624
1⤵
PID:4300

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 576 -p 3624 -ip 3624
1⤵
PID:2400

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 484 -p 3624 -ip 3624
1⤵
PID:3764

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/3624-3-0x0000000000400000-0x0000000000440000-memory.dmp

Filesize
256KB

Download
memory/3624-2-0x0000000000700000-0x000000000073C000-memory.dmp

Filesize
240KB

Download
memory/3624-1-0x0000000000780000-0x0000000000880000-memory.dmp

Filesize
1024KB

Download
memory/3624-6-0x0000000000400000-0x0000000000492000-memory.dmp

Filesize
584KB

Download
memory/3624-7-0x0000000000400000-0x0000000000440000-memory.dmp

Filesize
256KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads