gcleaner | ce53630e164fefbd80810e812308044a6c6705ae6c797aa680c0952b1b28c15f

Analysis

max time kernel
31s
max time network
34s
platform
windows7_x64
resource
win7-20230220-en
resource tags

arch:x64arch:x86image:win7-20230220-enlocale:en-usos:windows7-x64system
submitted
31-03-2023 21:30

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General

Target

c539e1b35b57d8924a24e156bfcc7975.exe
Size

286KB
MD5

c539e1b35b57d8924a24e156bfcc7975
SHA1

41be2de44376f7cc477d9213867f288702fc9a8d
SHA256

ce53630e164fefbd80810e812308044a6c6705ae6c797aa680c0952b1b28c15f
SHA512

8019d2e229244e74228fc1dbe1ac0a21eca864ab355e70ac54c29959c31f12511883f5ea218e424e81cb511183e7fabbe0f3bc87c9d3bd7436bfe42c58ee56b9
SSDEEP

3072:PpyvhHX7mjjOOM+WCBSi1pm64MlT6pb7gI7DOr2mntlMwGiphVBVda5MWaOiuCPg:xSCjvhbmWlQ7PyztHphna5DRiuIq59P

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
Deletes itself 1 IoCs

Processes:

cmd.exe

pid process

1420 cmd.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082
Kills process with taskkill 1 IoCs
evasion

Processes:

taskkill.exe

pid process

512 taskkill.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

taskkill.exe

description pid process

Token: SeDebugPrivilege 512 taskkill.exe

pid	process
1420	cmd.exe

pid	process
512	taskkill.exe

description	pid	process
Token: SeDebugPrivilege	512	taskkill.exe

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

c539e1b35b57d8924a24e156bfcc7975.execmd.exe

description	pid	process	target process
PID 2032 wrote to memory of 1420	2032	c539e1b35b57d8924a24e156bfcc7975.exe	cmd.exe
PID 2032 wrote to memory of 1420	2032	c539e1b35b57d8924a24e156bfcc7975.exe	cmd.exe
PID 2032 wrote to memory of 1420	2032	c539e1b35b57d8924a24e156bfcc7975.exe	cmd.exe
PID 2032 wrote to memory of 1420	2032	c539e1b35b57d8924a24e156bfcc7975.exe	cmd.exe
PID 1420 wrote to memory of 512	1420	cmd.exe	taskkill.exe
PID 1420 wrote to memory of 512	1420	cmd.exe	taskkill.exe
PID 1420 wrote to memory of 512	1420	cmd.exe	taskkill.exe
PID 1420 wrote to memory of 512	1420	cmd.exe	taskkill.exe

C:\Users\Admin\AppData\Local\Temp\c539e1b35b57d8924a24e156bfcc7975.exe
"C:\Users\Admin\AppData\Local\Temp\c539e1b35b57d8924a24e156bfcc7975.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:2032

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c taskkill /im "c539e1b35b57d8924a24e156bfcc7975.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\c539e1b35b57d8924a24e156bfcc7975.exe" & exit
2⤵
- Deletes itself
- Suspicious use of WriteProcessMemory
PID:1420

C:\Windows\SysWOW64\taskkill.exe
taskkill /im "c539e1b35b57d8924a24e156bfcc7975.exe" /f
3⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
PID:512

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

memory/2032-55-0x0000000000220000-0x0000000000260000-memory.dmp

Filesize
256KB

Download
memory/2032-56-0x0000000000400000-0x00000000004B8000-memory.dmp

Filesize
736KB

Download
memory/2032-58-0x0000000000400000-0x00000000004B8000-memory.dmp

Filesize
736KB

Download