gcleaner | b75d214b63d0734fed2ac9696aef837a0ba943e61b88cdbb70dfe5785990d6b2

General

Target

b75d214b63d0734fed2ac9696aef837a0ba943e61b88cdbb70dfe5785990d6b2.exe
Size

254KB
MD5

95afdb60ce8d55d2c6951b6ac446ac29
SHA1

1159603632c1fac14757334e0815f39fb9aab21d
SHA256

b75d214b63d0734fed2ac9696aef837a0ba943e61b88cdbb70dfe5785990d6b2
SHA512

3c5e30f2d987b4e1060bb757ae57e6f6dfd4fadc6d9dc4e2371931bbb8d89fda4f0c2158c77f956c3df403471f1e8af2cf4ce290795564cda4e43ea82c6d37c9
SSDEEP

3072:t8JOtnYpqla9sPt3+OnoRmg59WF8jY90v3CbmpXupTquyAEJxtMjaE+Z40UUW:tVnyGzh9KPFlDn+jaE+Z40

Score

10^/10

gcleaner loader

Malware Config

Extracted

Family

gcleaner

C2

185.172.128.90

5.42.65.64

Attributes

url_path
/advdlc.php

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:

b75d214b63d0734fed2ac9696aef837a0ba943e61b88cdbb70dfe5785990d6b2.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-1162180587-977231257-2194346871-1000\Control Panel\International\Geo\Nation	b75d214b63d0734fed2ac9696aef837a0ba943e61b88cdbb70dfe5785990d6b2.exe

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

System Information Discovery
T1082

Program crash 9 IoCs

Processes:

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

pid	pid_target	process	target process
2904	836	WerFault.exe	b75d214b63d0734fed2ac9696aef837a0ba943e61b88cdbb70dfe5785990d6b2.exe
632	836	WerFault.exe	b75d214b63d0734fed2ac9696aef837a0ba943e61b88cdbb70dfe5785990d6b2.exe
3560	836	WerFault.exe	b75d214b63d0734fed2ac9696aef837a0ba943e61b88cdbb70dfe5785990d6b2.exe
4264	836	WerFault.exe	b75d214b63d0734fed2ac9696aef837a0ba943e61b88cdbb70dfe5785990d6b2.exe
212	836	WerFault.exe	b75d214b63d0734fed2ac9696aef837a0ba943e61b88cdbb70dfe5785990d6b2.exe
400	836	WerFault.exe	b75d214b63d0734fed2ac9696aef837a0ba943e61b88cdbb70dfe5785990d6b2.exe
3568	836	WerFault.exe	b75d214b63d0734fed2ac9696aef837a0ba943e61b88cdbb70dfe5785990d6b2.exe
4944	836	WerFault.exe	b75d214b63d0734fed2ac9696aef837a0ba943e61b88cdbb70dfe5785990d6b2.exe
3396	836	WerFault.exe	b75d214b63d0734fed2ac9696aef837a0ba943e61b88cdbb70dfe5785990d6b2.exe

Kills process with taskkill 1 IoCs
evasion

Processes:

taskkill.exe

pid process

532 taskkill.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

taskkill.exe

description pid process

Token: SeDebugPrivilege 532 taskkill.exe

pid	process
532	taskkill.exe

description	pid	process
Token: SeDebugPrivilege	532	taskkill.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

b75d214b63d0734fed2ac9696aef837a0ba943e61b88cdbb70dfe5785990d6b2.execmd.exe

description	pid	process	target process
PID 836 wrote to memory of 4772	836	b75d214b63d0734fed2ac9696aef837a0ba943e61b88cdbb70dfe5785990d6b2.exe	cmd.exe
PID 836 wrote to memory of 4772	836	b75d214b63d0734fed2ac9696aef837a0ba943e61b88cdbb70dfe5785990d6b2.exe	cmd.exe
PID 836 wrote to memory of 4772	836	b75d214b63d0734fed2ac9696aef837a0ba943e61b88cdbb70dfe5785990d6b2.exe	cmd.exe
PID 4772 wrote to memory of 532	4772	cmd.exe	taskkill.exe
PID 4772 wrote to memory of 532	4772	cmd.exe	taskkill.exe
PID 4772 wrote to memory of 532	4772	cmd.exe	taskkill.exe

C:\Users\Admin\AppData\Local\Temp\b75d214b63d0734fed2ac9696aef837a0ba943e61b88cdbb70dfe5785990d6b2.exe
"C:\Users\Admin\AppData\Local\Temp\b75d214b63d0734fed2ac9696aef837a0ba943e61b88cdbb70dfe5785990d6b2.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:836

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 836 -s 740
2⤵
- Program crash
PID:2904

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 836 -s 748
2⤵
- Program crash
PID:632

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 836 -s 748
2⤵
- Program crash
PID:3560

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 836 -s 772
2⤵
- Program crash
PID:4264

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 836 -s 912
2⤵
- Program crash
PID:212

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 836 -s 1000
2⤵
- Program crash
PID:400

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 836 -s 1044
2⤵
- Program crash
PID:3568

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 836 -s 1320
2⤵
- Program crash
PID:4944

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c taskkill /im "b75d214b63d0734fed2ac9696aef837a0ba943e61b88cdbb70dfe5785990d6b2.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\b75d214b63d0734fed2ac9696aef837a0ba943e61b88cdbb70dfe5785990d6b2.exe" & exit
2⤵
- Suspicious use of WriteProcessMemory
PID:4772

C:\Windows\SysWOW64\taskkill.exe
taskkill /im "b75d214b63d0734fed2ac9696aef837a0ba943e61b88cdbb70dfe5785990d6b2.exe" /f
3⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
PID:532

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 836 -s 1308
2⤵
- Program crash
PID:3396

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 836 -ip 836
1⤵
PID:3432

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 528 -p 836 -ip 836
1⤵
PID:1980

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 536 -p 836 -ip 836
1⤵
PID:4912

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 472 -p 836 -ip 836
1⤵
PID:1668

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 536 -p 836 -ip 836
1⤵
PID:2564

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 468 -p 836 -ip 836
1⤵
PID:4852

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 836 -ip 836
1⤵
PID:1124

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 540 -p 836 -ip 836
1⤵
PID:4828

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 540 -p 836 -ip 836
1⤵
PID:656

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/836-2-0x0000000002090000-0x00000000020BD000-memory.dmp

Filesize
180KB

Download
memory/836-1-0x0000000000490000-0x0000000000590000-memory.dmp

Filesize
1024KB

Download
memory/836-3-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/836-5-0x0000000000400000-0x0000000000489000-memory.dmp

Filesize
548KB

Download
memory/836-6-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads