gcleaner | 8853715caa4502209f806afcded94a839120cc0885196b32d8d25f7e4a43dca3

Analysis

max time kernel
138s
max time network
148s
platform
windows10-2004_x64
resource
win10v2004-20221111-en
resource tags

arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
submitted
13/02/2023, 22:20

Sharing

Copy URL Twitter E-mail

Report Analysis Logs

General

Target
5ec7c93c5bd4eb79ec7972bef2fcd3bf.exe
Size 261KB
Sample230213-183mlagg27
SHA256 8853715caa4502209f806afcded94a839120cc0885196b32d8d25f7e4a43dca3
MD5 5ec7c93c5bd4eb79ec7972bef2fcd3bf
SHA1 836489770811a3211cdb3742dd2c0d0dd18727a9
SHA512 92b00715cea1694b72ed33811e06361881df0f7f0c7a4701e8ae0f8327f093fca5f005d60ee6bcecb969ede80584878eba25d56b55beab7091008514ef8dfb35
SSDEEP 6144:BjF9RIFKu+51FdOrA2ujKfmbORxsCL6Mdz:BjHcKuK1Fx2mbOLN
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

gcleaner loader

Malware Config

Extracted

Family

gcleaner

45.12.253.56
45.12.253.72
45.12.253.98
45.12.253.75

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

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\Control Panel\International\Geo\Nation	5ec7c93c5bd4eb79ec7972bef2fcd3bf.exe

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

System Information Discovery
T1082

Program crash 8 IoCs

pid	pid_target	Process	procid_target
4576	4704	WerFault.exe	80
3568	4704	WerFault.exe	80
3872	4704	WerFault.exe	80
1328	4704	WerFault.exe	80
4268	4704	WerFault.exe	80
5024	4704	WerFault.exe	80
1320	4704	WerFault.exe	80
1228	4704	WerFault.exe	80

Kills process with taskkill 1 IoCs

evasion

pid	Process
3960	taskkill.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3960	taskkill.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4704 wrote to memory of 1172	4704	5ec7c93c5bd4eb79ec7972bef2fcd3bf.exe	97
PID 4704 wrote to memory of 1172	4704	5ec7c93c5bd4eb79ec7972bef2fcd3bf.exe	97
PID 4704 wrote to memory of 1172	4704	5ec7c93c5bd4eb79ec7972bef2fcd3bf.exe	97
PID 1172 wrote to memory of 3960	1172	cmd.exe	99
PID 1172 wrote to memory of 3960	1172	cmd.exe	99
PID 1172 wrote to memory of 3960	1172	cmd.exe	99

C:\Users\Admin\AppData\Local\Temp\5ec7c93c5bd4eb79ec7972bef2fcd3bf.exe
"C:\Users\Admin\AppData\Local\Temp\5ec7c93c5bd4eb79ec7972bef2fcd3bf.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4704
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4704 -s 460
  2⤵
  - Program crash
  PID:4576
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4704 -s 756
  2⤵
  - Program crash
  PID:3568
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4704 -s 784
  2⤵
  - Program crash
  PID:3872
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4704 -s 784
  2⤵
  - Program crash
  PID:1328
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4704 -s 836
  2⤵
  - Program crash
  PID:4268
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4704 -s 916
  2⤵
  - Program crash
  PID:5024
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4704 -s 916
  2⤵
  - Program crash
  PID:1320
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4704 -s 1356
  2⤵
  - Program crash
  PID:1228
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c taskkill /im "5ec7c93c5bd4eb79ec7972bef2fcd3bf.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\5ec7c93c5bd4eb79ec7972bef2fcd3bf.exe" & exit
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:1172
- - C:\Windows\SysWOW64\taskkill.exe
    taskkill /im "5ec7c93c5bd4eb79ec7972bef2fcd3bf.exe" /f
    3⤵
    - Kills process with taskkill
    - Suspicious use of AdjustPrivilegeToken
    PID:3960

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 452 -p 4704 -ip 4704
1⤵
PID:4680

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 516 -p 4704 -ip 4704
1⤵
PID:2052

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 540 -p 4704 -ip 4704
1⤵
PID:3920

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 184 -p 4704 -ip 4704
1⤵
PID:4420

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 460 -p 4704 -ip 4704
1⤵
PID:1344

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 532 -p 4704 -ip 4704
1⤵
PID:4996

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 524 -p 4704 -ip 4704
1⤵
PID:1996

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 520 -p 4704 -ip 4704
1⤵
PID:1976

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

memory/4704-132-0x00000000007F8000-0x000000000081F000-memory.dmp

Download

memory/4704-133-0x00000000022C0000-0x0000000002300000-memory.dmp

Download

memory/4704-134-0x0000000000400000-0x0000000000573000-memory.dmp

Download

memory/4704-136-0x00000000007F8000-0x000000000081F000-memory.dmp

Download

memory/4704-137-0x0000000000400000-0x0000000000573000-memory.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads