gcleaner | aac98fd8f667b58ae3d47c4198612e0896236a39191dfcf79fd430ec7687039e

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
11-03-2023 15:48

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General

Target

43c684cde21885bd1a7add14846c6ce0ab374a6ff7163b655ec80186620770d3.exe
Size

331KB
MD5

2cb08ca754964460e0c6d81e1250c974
SHA1

7f62b1284addc0f579b2ca240352027711d021f0
SHA256

43c684cde21885bd1a7add14846c6ce0ab374a6ff7163b655ec80186620770d3
SHA512

c00361862d1977e1a591a0a2ef21bc35aee37a97ff55ecffeb632a850000456613d497fa76e23a7e676473fd9a4bc325a0443a7bcf95fda512e3a08e314785ad
SSDEEP

6144:H5XlqHQCFVZqVFbFso4D3N/B3yoGkaFtZWfdW4TE3v1144C0K:H9sHQCFVQVFb095CGaFtZ4dW1cn

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

1816 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

1708 taskkill.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

taskkill.exe

description pid process

Token: SeDebugPrivilege 1708 taskkill.exe

pid	process
1816	cmd.exe

pid	process
1708	taskkill.exe

description	pid	process
Token: SeDebugPrivilege	1708	taskkill.exe

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

43c684cde21885bd1a7add14846c6ce0ab374a6ff7163b655ec80186620770d3.execmd.exe

description	pid	process	target process
PID 1716 wrote to memory of 1816	1716	43c684cde21885bd1a7add14846c6ce0ab374a6ff7163b655ec80186620770d3.exe	cmd.exe
PID 1716 wrote to memory of 1816	1716	43c684cde21885bd1a7add14846c6ce0ab374a6ff7163b655ec80186620770d3.exe	cmd.exe
PID 1716 wrote to memory of 1816	1716	43c684cde21885bd1a7add14846c6ce0ab374a6ff7163b655ec80186620770d3.exe	cmd.exe
PID 1716 wrote to memory of 1816	1716	43c684cde21885bd1a7add14846c6ce0ab374a6ff7163b655ec80186620770d3.exe	cmd.exe
PID 1816 wrote to memory of 1708	1816	cmd.exe	taskkill.exe
PID 1816 wrote to memory of 1708	1816	cmd.exe	taskkill.exe
PID 1816 wrote to memory of 1708	1816	cmd.exe	taskkill.exe
PID 1816 wrote to memory of 1708	1816	cmd.exe	taskkill.exe

C:\Users\Admin\AppData\Local\Temp\43c684cde21885bd1a7add14846c6ce0ab374a6ff7163b655ec80186620770d3.exe
"C:\Users\Admin\AppData\Local\Temp\43c684cde21885bd1a7add14846c6ce0ab374a6ff7163b655ec80186620770d3.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:1716
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c taskkill /im "43c684cde21885bd1a7add14846c6ce0ab374a6ff7163b655ec80186620770d3.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\43c684cde21885bd1a7add14846c6ce0ab374a6ff7163b655ec80186620770d3.exe" & exit
  2⤵
  - Deletes itself
  - Suspicious use of WriteProcessMemory
  PID:1816
- - C:\Windows\SysWOW64\taskkill.exe
    taskkill /im "43c684cde21885bd1a7add14846c6ce0ab374a6ff7163b655ec80186620770d3.exe" /f
    3⤵
    - Kills process with taskkill
    - Suspicious use of AdjustPrivilegeToken
    PID:1708

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/1716-55-0x0000000000220000-0x0000000000260000-memory.dmp

Filesize
256KB

Download
memory/1716-56-0x0000000000400000-0x0000000000597000-memory.dmp

Filesize
1.6MB

Download
memory/1716-58-0x0000000000400000-0x0000000000597000-memory.dmp

Filesize
1.6MB

Download