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

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:

ef63c07c903abdfa350d4827343845f72c9685369182f45a1c6d12e199781003.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-1181767204-2009306918-3718769404-1000\Control Panel\International\Geo\Nation	ef63c07c903abdfa350d4827343845f72c9685369182f45a1c6d12e199781003.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
4488	632	WerFault.exe	ef63c07c903abdfa350d4827343845f72c9685369182f45a1c6d12e199781003.exe
1584	632	WerFault.exe	ef63c07c903abdfa350d4827343845f72c9685369182f45a1c6d12e199781003.exe
608	632	WerFault.exe	ef63c07c903abdfa350d4827343845f72c9685369182f45a1c6d12e199781003.exe
1832	632	WerFault.exe	ef63c07c903abdfa350d4827343845f72c9685369182f45a1c6d12e199781003.exe
768	632	WerFault.exe	ef63c07c903abdfa350d4827343845f72c9685369182f45a1c6d12e199781003.exe
4744	632	WerFault.exe	ef63c07c903abdfa350d4827343845f72c9685369182f45a1c6d12e199781003.exe
2372	632	WerFault.exe	ef63c07c903abdfa350d4827343845f72c9685369182f45a1c6d12e199781003.exe
1844	632	WerFault.exe	ef63c07c903abdfa350d4827343845f72c9685369182f45a1c6d12e199781003.exe
1260	632	WerFault.exe	ef63c07c903abdfa350d4827343845f72c9685369182f45a1c6d12e199781003.exe
532	632	WerFault.exe	ef63c07c903abdfa350d4827343845f72c9685369182f45a1c6d12e199781003.exe
2220	632	WerFault.exe	ef63c07c903abdfa350d4827343845f72c9685369182f45a1c6d12e199781003.exe

Kills process with taskkill 1 IoCs
evasion

Processes:

taskkill.exe

pid process

2888 taskkill.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

taskkill.exe

description pid process

Token: SeDebugPrivilege 2888 taskkill.exe

pid	process
2888	taskkill.exe

description	pid	process
Token: SeDebugPrivilege	2888	taskkill.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

ef63c07c903abdfa350d4827343845f72c9685369182f45a1c6d12e199781003.execmd.exe

description	pid	process	target process
PID 632 wrote to memory of 1572	632	ef63c07c903abdfa350d4827343845f72c9685369182f45a1c6d12e199781003.exe	cmd.exe
PID 632 wrote to memory of 1572	632	ef63c07c903abdfa350d4827343845f72c9685369182f45a1c6d12e199781003.exe	cmd.exe
PID 632 wrote to memory of 1572	632	ef63c07c903abdfa350d4827343845f72c9685369182f45a1c6d12e199781003.exe	cmd.exe
PID 1572 wrote to memory of 2888	1572	cmd.exe	taskkill.exe
PID 1572 wrote to memory of 2888	1572	cmd.exe	taskkill.exe
PID 1572 wrote to memory of 2888	1572	cmd.exe	taskkill.exe

C:\Users\Admin\AppData\Local\Temp\ef63c07c903abdfa350d4827343845f72c9685369182f45a1c6d12e199781003.exe
"C:\Users\Admin\AppData\Local\Temp\ef63c07c903abdfa350d4827343845f72c9685369182f45a1c6d12e199781003.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:632

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 632 -s 456
2⤵
- Program crash
PID:4488

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 632 -s 468
2⤵
- Program crash
PID:1584

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 632 -s 748
2⤵
- Program crash
PID:608

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 632 -s 768
2⤵
- Program crash
PID:1832

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 632 -s 768
2⤵
- Program crash
PID:768

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 632 -s 844
2⤵
- Program crash
PID:4744

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 632 -s 912
2⤵
- Program crash
PID:2372

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 632 -s 916
2⤵
- Program crash
PID:1844

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 632 -s 1072
2⤵
- Program crash
PID:1260

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 632 -s 1340
2⤵
- Program crash
PID:532

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:1572

C:\Windows\SysWOW64\taskkill.exe
taskkill /im "ef63c07c903abdfa350d4827343845f72c9685369182f45a1c6d12e199781003.exe" /f
3⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
PID:2888

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 632 -s 1348
2⤵
- Program crash
PID:2220

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 436 -p 632 -ip 632
1⤵
PID:1484

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 492 -p 632 -ip 632
1⤵
PID:2236

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 512 -p 632 -ip 632
1⤵
PID:1504

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 632 -ip 632
1⤵
PID:2008

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 516 -p 632 -ip 632
1⤵
PID:4384

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 632 -ip 632
1⤵
PID:2724

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 532 -p 632 -ip 632
1⤵
PID:5028

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 544 -p 632 -ip 632
1⤵
PID:368

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 468 -p 632 -ip 632
1⤵
PID:3440

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --field-trial-handle=4080,i,5711962389779687290,1245653010537220991,262144 --variations-seed-version --mojo-platform-channel-handle=4208 /prefetch:8
1⤵
PID:944

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 564 -p 632 -ip 632
1⤵
PID:2236

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 540 -p 632 -ip 632
1⤵
PID:1164

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/632-1-0x0000000000640000-0x0000000000740000-memory.dmp

Filesize
1024KB

Download
memory/632-2-0x00000000020E0000-0x000000000211C000-memory.dmp

Filesize
240KB

Download
memory/632-3-0x0000000000400000-0x0000000000440000-memory.dmp

Filesize
256KB

Download
memory/632-6-0x0000000000400000-0x0000000000492000-memory.dmp

Filesize
584KB

Download
memory/632-7-0x0000000000400000-0x0000000000440000-memory.dmp

Filesize
256KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads