gcleaner | 1ef8dd1b6c059bbf50984bc00eeb54c8b2a05db6dd52b560605292da412bd6f9

Analysis

max time kernel
48s
max time network
53s
platform
windows7_x64
resource
win7-20220901-en
resource tags

arch:x64arch:x86image:win7-20220901-enlocale:en-usos:windows7-x64system
submitted
11/02/2023, 09:10

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General

Target

c7321ee88deeede4d5ad70f74feac847.exe
Size

276KB
MD5

c7321ee88deeede4d5ad70f74feac847
SHA1

e847f216a666d69a4784c23672fc36ecbe003dd3
SHA256

1ef8dd1b6c059bbf50984bc00eeb54c8b2a05db6dd52b560605292da412bd6f9
SHA512

77b92d400f1020e2a30eda2d366ab2568f2ca79f87c6150b0d6c08e14335384db6d2d3bc4941a5308d1c2e8f598781e38357426d4383a1795e3d69553e425a0f
SSDEEP

3072:ohiO4hRL+iGL24qWYh5cK5hBLkUyuDLBLy1dV1RhYVO10Ya4ZGb94v9kAJ59kRYC:ohiDRGLJqf7LtDLEkV4Zw94VkATmYW

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

pid	Process
816	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

pid	Process
764	taskkill.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	764	taskkill.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 1524 wrote to memory of 816	1524	c7321ee88deeede4d5ad70f74feac847.exe	27
PID 1524 wrote to memory of 816	1524	c7321ee88deeede4d5ad70f74feac847.exe	27
PID 1524 wrote to memory of 816	1524	c7321ee88deeede4d5ad70f74feac847.exe	27
PID 1524 wrote to memory of 816	1524	c7321ee88deeede4d5ad70f74feac847.exe	27
PID 816 wrote to memory of 764	816	cmd.exe	29
PID 816 wrote to memory of 764	816	cmd.exe	29
PID 816 wrote to memory of 764	816	cmd.exe	29
PID 816 wrote to memory of 764	816	cmd.exe	29

C:\Users\Admin\AppData\Local\Temp\c7321ee88deeede4d5ad70f74feac847.exe
"C:\Users\Admin\AppData\Local\Temp\c7321ee88deeede4d5ad70f74feac847.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:1524
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c taskkill /im "c7321ee88deeede4d5ad70f74feac847.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\c7321ee88deeede4d5ad70f74feac847.exe" & exit
  2⤵
  - Deletes itself
  - Suspicious use of WriteProcessMemory
  PID:816
- - C:\Windows\SysWOW64\taskkill.exe
    taskkill /im "c7321ee88deeede4d5ad70f74feac847.exe" /f
    3⤵
    - Kills process with taskkill
    - Suspicious use of AdjustPrivilegeToken
    PID:764

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/1524-54-0x0000000075FE1000-0x0000000075FE3000-memory.dmp

Filesize
8KB

Download
memory/1524-56-0x00000000006FB000-0x0000000000722000-memory.dmp

Filesize
156KB

Download
memory/1524-57-0x0000000000240000-0x0000000000280000-memory.dmp

Filesize
256KB

Download
memory/1524-58-0x0000000000400000-0x0000000000576000-memory.dmp

Filesize
1.5MB

Download