gcleaner | 4b0e4fd6806fe1cd9dd277211a3aa9ab0510a3795355190acf8a84f6a2e5a508

Analysis

max time kernel
31s
max time network
33s
platform
windows7_x64
resource
win7-20230220-en
resource tags

arch:x64arch:x86image:win7-20230220-enlocale:en-usos:windows7-x64system
submitted
08-03-2023 19:40

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General

Target

d554d767e490e4a920b0efde009c1ee2.exe
Size

276KB
MD5

d554d767e490e4a920b0efde009c1ee2
SHA1

685f5852949a32832eb38314a699b7697550ad2d
SHA256

4b0e4fd6806fe1cd9dd277211a3aa9ab0510a3795355190acf8a84f6a2e5a508
SHA512

5643111c5370d9afdc677ade1e168bfd90ff0f518ad6d680c5b053336df7e88a20e34efd03352dda53931b0d87bcad484184036a7a9af8e4aa6927082862d888
SSDEEP

6144:IzaompYs/FnG2Hq9h8GE2u73uySVApc+:uEYs/hG2K9hjeSK

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:

d554d767e490e4a920b0efde009c1ee2.execmd.exe

description	pid	process	target process
PID 1704 wrote to memory of 1420	1704	d554d767e490e4a920b0efde009c1ee2.exe	cmd.exe
PID 1704 wrote to memory of 1420	1704	d554d767e490e4a920b0efde009c1ee2.exe	cmd.exe
PID 1704 wrote to memory of 1420	1704	d554d767e490e4a920b0efde009c1ee2.exe	cmd.exe
PID 1704 wrote to memory of 1420	1704	d554d767e490e4a920b0efde009c1ee2.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\d554d767e490e4a920b0efde009c1ee2.exe
"C:\Users\Admin\AppData\Local\Temp\d554d767e490e4a920b0efde009c1ee2.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:1704
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c taskkill /im "d554d767e490e4a920b0efde009c1ee2.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\d554d767e490e4a920b0efde009c1ee2.exe" & exit
  2⤵
  - Deletes itself
  - Suspicious use of WriteProcessMemory
  PID:1420
- - C:\Windows\SysWOW64\taskkill.exe
    taskkill /im "d554d767e490e4a920b0efde009c1ee2.exe" /f
    3⤵
    - Kills process with taskkill
    - Suspicious use of AdjustPrivilegeToken
    PID:512

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/1704-55-0x0000000000310000-0x0000000000350000-memory.dmp

Filesize
256KB

Download
memory/1704-56-0x0000000000400000-0x0000000000462000-memory.dmp

Filesize
392KB

Download
memory/1704-58-0x0000000000400000-0x0000000000462000-memory.dmp

Filesize
392KB

Download