gcleaner | 5f42e5bdef951ece973249376de8b01d250ad5cf075fbc8b578576a6321cf573

General

Target

5f42e5bdef951ece973249376de8b01d250ad5cf075fbc8b578576a6321cf573.exe
Size

262KB
MD5

635e01e3fd27ac5c8a4a00c44664af6f
SHA1

44d9e1f9f891822dc8987b51fbe2688ecaeeca0b
SHA256

5f42e5bdef951ece973249376de8b01d250ad5cf075fbc8b578576a6321cf573
SHA512

b3ea21309b25706a26fa8b6da7d8bfddba95724a707d27b2461979dd4e489b5de157dc3b21258c696dee2fc015591a413473edaf6c110333e11b8757f2417f0a
SSDEEP

6144:OGyMSj0l99zKx1N4XNS0ytlWB6t82wC1QilY:OGyrj0f9zKvcw0wlWM82wC9

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:

5f42e5bdef951ece973249376de8b01d250ad5cf075fbc8b578576a6321cf573.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-4124900551-4068476067-3491212533-1000\Control Panel\International\Geo\Nation	5f42e5bdef951ece973249376de8b01d250ad5cf075fbc8b578576a6321cf573.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
1164	1940	WerFault.exe	5f42e5bdef951ece973249376de8b01d250ad5cf075fbc8b578576a6321cf573.exe
1200	1940	WerFault.exe	5f42e5bdef951ece973249376de8b01d250ad5cf075fbc8b578576a6321cf573.exe
232	1940	WerFault.exe	5f42e5bdef951ece973249376de8b01d250ad5cf075fbc8b578576a6321cf573.exe
5048	1940	WerFault.exe	5f42e5bdef951ece973249376de8b01d250ad5cf075fbc8b578576a6321cf573.exe
4704	1940	WerFault.exe	5f42e5bdef951ece973249376de8b01d250ad5cf075fbc8b578576a6321cf573.exe
4652	1940	WerFault.exe	5f42e5bdef951ece973249376de8b01d250ad5cf075fbc8b578576a6321cf573.exe
4676	1940	WerFault.exe	5f42e5bdef951ece973249376de8b01d250ad5cf075fbc8b578576a6321cf573.exe
740	1940	WerFault.exe	5f42e5bdef951ece973249376de8b01d250ad5cf075fbc8b578576a6321cf573.exe
2108	1940	WerFault.exe	5f42e5bdef951ece973249376de8b01d250ad5cf075fbc8b578576a6321cf573.exe
4372	1940	WerFault.exe	5f42e5bdef951ece973249376de8b01d250ad5cf075fbc8b578576a6321cf573.exe
2828	1940	WerFault.exe	5f42e5bdef951ece973249376de8b01d250ad5cf075fbc8b578576a6321cf573.exe

Kills process with taskkill 1 IoCs
evasion

Processes:

taskkill.exe

pid process

508 taskkill.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

taskkill.exe

description pid process

Token: SeDebugPrivilege 508 taskkill.exe

pid	process
508	taskkill.exe

description	pid	process
Token: SeDebugPrivilege	508	taskkill.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

5f42e5bdef951ece973249376de8b01d250ad5cf075fbc8b578576a6321cf573.execmd.exe

description	pid	process	target process
PID 1940 wrote to memory of 1204	1940	5f42e5bdef951ece973249376de8b01d250ad5cf075fbc8b578576a6321cf573.exe	cmd.exe
PID 1940 wrote to memory of 1204	1940	5f42e5bdef951ece973249376de8b01d250ad5cf075fbc8b578576a6321cf573.exe	cmd.exe
PID 1940 wrote to memory of 1204	1940	5f42e5bdef951ece973249376de8b01d250ad5cf075fbc8b578576a6321cf573.exe	cmd.exe
PID 1204 wrote to memory of 508	1204	cmd.exe	taskkill.exe
PID 1204 wrote to memory of 508	1204	cmd.exe	taskkill.exe
PID 1204 wrote to memory of 508	1204	cmd.exe	taskkill.exe

C:\Users\Admin\AppData\Local\Temp\5f42e5bdef951ece973249376de8b01d250ad5cf075fbc8b578576a6321cf573.exe
"C:\Users\Admin\AppData\Local\Temp\5f42e5bdef951ece973249376de8b01d250ad5cf075fbc8b578576a6321cf573.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:1940
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1940 -s 452
  2⤵
  - Program crash
  PID:1164
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1940 -s 508
  2⤵
  - Program crash
  PID:1200
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1940 -s 748
  2⤵
  - Program crash
  PID:232
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1940 -s 768
  2⤵
  - Program crash
  PID:5048
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1940 -s 788
  2⤵
  - Program crash
  PID:4704
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1940 -s 840
  2⤵
  - Program crash
  PID:4652
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1940 -s 912
  2⤵
  - Program crash
  PID:4676
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1940 -s 984
  2⤵
  - Program crash
  PID:740
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1940 -s 996
  2⤵
  - Program crash
  PID:2108
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1940 -s 1396
  2⤵
  - Program crash
  PID:4372
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c taskkill /im "5f42e5bdef951ece973249376de8b01d250ad5cf075fbc8b578576a6321cf573.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\5f42e5bdef951ece973249376de8b01d250ad5cf075fbc8b578576a6321cf573.exe" & exit
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:1204
- - C:\Windows\SysWOW64\taskkill.exe
    taskkill /im "5f42e5bdef951ece973249376de8b01d250ad5cf075fbc8b578576a6321cf573.exe" /f
    3⤵
    - Kills process with taskkill
    - Suspicious use of AdjustPrivilegeToken
    PID:508
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1940 -s 1428
  2⤵
  - Program crash
  PID:2828

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 1940 -ip 1940
1⤵
PID:624

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 520 -p 1940 -ip 1940
1⤵
PID:5076

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 528 -p 1940 -ip 1940
1⤵
PID:4508

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 184 -p 1940 -ip 1940
1⤵
PID:2456

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 512 -p 1940 -ip 1940
1⤵
PID:5092

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 452 -p 1940 -ip 1940
1⤵
PID:2564

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 536 -p 1940 -ip 1940
1⤵
PID:1036

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 508 -p 1940 -ip 1940
1⤵
PID:1524

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 512 -p 1940 -ip 1940
1⤵
PID:1736

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 504 -p 1940 -ip 1940
1⤵
PID:1068

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 516 -p 1940 -ip 1940
1⤵
PID:4808

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/1940-1-0x0000000002EB0000-0x0000000002FB0000-memory.dmp

Filesize
1024KB

Download
memory/1940-3-0x0000000000400000-0x0000000000440000-memory.dmp

Filesize
256KB

Download
memory/1940-2-0x0000000002E00000-0x0000000002E3C000-memory.dmp

Filesize
240KB

Download
memory/1940-8-0x0000000002E00000-0x0000000002E3C000-memory.dmp

Filesize
240KB

Download
memory/1940-7-0x0000000000400000-0x0000000000440000-memory.dmp

Filesize
256KB

Download
memory/1940-6-0x0000000000400000-0x0000000002C99000-memory.dmp

Filesize
40.6MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads