gcleaner | 506e0670b1fd6a2fadb4dbb6bbb40436228b76989e8d0c73e0a31cfd65425b57

Analysis

max time kernel
31s
max time network
51s
platform
windows11-21h2_x64
resource
win11-20240802-en
resource tags

arch:x64arch:x86image:win11-20240802-enlocale:en-usos:windows11-21h2-x64system
submitted
02/09/2024, 13:37

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General

Target

506e0670b1fd6a2fadb4dbb6bbb40436228b76989e8d0c73e0a31cfd65425b57.exe
Size

305KB
MD5

992e197904f174367e42fa0dff79b9a1
SHA1

3b5378454dd1189abf1f21d2eaf39aa2ce185e56
SHA256

506e0670b1fd6a2fadb4dbb6bbb40436228b76989e8d0c73e0a31cfd65425b57
SHA512

23b292ddf14a50da6e8e8c3f42c19875a67673891d6b88c989488083bcc8f186b419e4fbd266488dab42d4334ca03afa173136cd9291f0a6482fef740d5c988f
SSDEEP

6144:HBgQgpT8TUdXjdUWX5WAuyT73eWeb/8MBhhngqhc:hgQgXdTdvJWIT7pebkkM

Score

10^/10

gcleaner discovery loader

Malware Config

Extracted

Family

gcleaner

80.66.75.114

Signatures

GCleaner
GCleaner is a Pay-Per-Install malware loader first discovered in early 2019.
loader gcleaner
Downloads MZ/PE file
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Program crash 1 IoCs

pid	pid_target	Process	procid_target
240	4760	WerFault.exe	80

System Location Discovery: System Language Discovery 1 TTPs 3 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	taskkill.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	506e0670b1fd6a2fadb4dbb6bbb40436228b76989e8d0c73e0a31cfd65425b57.exe

Kills process with taskkill 1 IoCs

evasion

pid	Process
3036	taskkill.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3036	taskkill.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4760 wrote to memory of 1212	4760	506e0670b1fd6a2fadb4dbb6bbb40436228b76989e8d0c73e0a31cfd65425b57.exe	83
PID 4760 wrote to memory of 1212	4760	506e0670b1fd6a2fadb4dbb6bbb40436228b76989e8d0c73e0a31cfd65425b57.exe	83
PID 4760 wrote to memory of 1212	4760	506e0670b1fd6a2fadb4dbb6bbb40436228b76989e8d0c73e0a31cfd65425b57.exe	83
PID 1212 wrote to memory of 3036	1212	cmd.exe	87
PID 1212 wrote to memory of 3036	1212	cmd.exe	87
PID 1212 wrote to memory of 3036	1212	cmd.exe	87

C:\Users\Admin\AppData\Local\Temp\506e0670b1fd6a2fadb4dbb6bbb40436228b76989e8d0c73e0a31cfd65425b57.exe
"C:\Users\Admin\AppData\Local\Temp\506e0670b1fd6a2fadb4dbb6bbb40436228b76989e8d0c73e0a31cfd65425b57.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4760
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c taskkill /im "506e0670b1fd6a2fadb4dbb6bbb40436228b76989e8d0c73e0a31cfd65425b57.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\506e0670b1fd6a2fadb4dbb6bbb40436228b76989e8d0c73e0a31cfd65425b57.exe" & exit
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:1212
- - C:\Windows\SysWOW64\taskkill.exe
    taskkill /im "506e0670b1fd6a2fadb4dbb6bbb40436228b76989e8d0c73e0a31cfd65425b57.exe" /f
    3⤵
    - System Location Discovery: System Language Discovery
    - Kills process with taskkill
    - Suspicious use of AdjustPrivilegeToken
    PID:3036
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4760 -s 1664
  2⤵
  - Program crash
  PID:240

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 436 -p 4760 -ip 4760
1⤵
PID:3908

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\WC3VGW7B\download[1].htm

Filesize
1B

MD5
cfcd208495d565ef66e7dff9f98764da

SHA1
b6589fc6ab0dc82cf12099d1c2d40ab994e8410c

SHA256
5feceb66ffc86f38d952786c6d696c79c2dbc239dd4e91b46729d73a27fb57e9

SHA512
31bca02094eb78126a517b206a88c73cfa9ec6f704c7030d18212cace820f025f00bf0ea68dbf3f3a5436ca63b53bf7bf80ad8d5de7d8359d0b7fed9dbc3ab99

Download Submit
memory/4760-1-0x0000000000610000-0x0000000000710000-memory.dmp

Filesize
1024KB

Download
memory/4760-2-0x00000000022D0000-0x000000000230C000-memory.dmp

Filesize
240KB

Download
memory/4760-3-0x0000000000400000-0x000000000043F000-memory.dmp

Filesize
252KB

Download
memory/4760-8-0x0000000010000000-0x000000001001C000-memory.dmp

Filesize
112KB

Download
memory/4760-13-0x0000000000610000-0x0000000000710000-memory.dmp

Filesize
1024KB

Download
memory/4760-15-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4760-16-0x00000000022D0000-0x000000000230C000-memory.dmp

Filesize
240KB

Download
memory/4760-18-0x0000000000400000-0x000000000043F000-memory.dmp

Filesize
252KB

Download
memory/4760-29-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4760-35-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4760-36-0x0000000000400000-0x000000000043F000-memory.dmp

Filesize
252KB

Download