gcleaner | 852e2bb74ff593ea00e70f62ba7639533e104e2df02e53b13cf61133f942fc0b

Analysis

max time kernel
149s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
26-09-2024 01:57

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

852e2bb74ff593ea00e70f62ba7639533e104e2df02e53b13cf61133f942fc0b.exe
Size

294KB
MD5

13a595ded524800f38b3ca5bd464ba8d
SHA1

2d61f91e83f9df37a715ce3109e42bd49185c917
SHA256

852e2bb74ff593ea00e70f62ba7639533e104e2df02e53b13cf61133f942fc0b
SHA512

0f592c82af3b419b4faf19474e2b5db7199c30b1b8a602a38f2a59a04aafcda817d619cb19da8aa2db4219e986d6a80d969ef6c0ec4d65b73eb36474f81277fa
SSDEEP

6144:jbVyfXc9rZnPTFAgOOf7jjV7THzcdnKHfhRfFE/Q:jcXurZn+gfx7THIdK/hRfW/

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

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-355097885-2402257403-2971294179-1000\Control Panel\International\Geo\Nation	852e2bb74ff593ea00e70f62ba7639533e104e2df02e53b13cf61133f942fc0b.exe

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
3460	2812	WerFault.exe	83

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	852e2bb74ff593ea00e70f62ba7639533e104e2df02e53b13cf61133f942fc0b.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	taskkill.exe

Kills process with taskkill 1 IoCs

evasion

pid	Process
3180	taskkill.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3180	taskkill.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 2812 wrote to memory of 4776	2812	852e2bb74ff593ea00e70f62ba7639533e104e2df02e53b13cf61133f942fc0b.exe	91
PID 2812 wrote to memory of 4776	2812	852e2bb74ff593ea00e70f62ba7639533e104e2df02e53b13cf61133f942fc0b.exe	91
PID 2812 wrote to memory of 4776	2812	852e2bb74ff593ea00e70f62ba7639533e104e2df02e53b13cf61133f942fc0b.exe	91
PID 4776 wrote to memory of 3180	4776	cmd.exe	95
PID 4776 wrote to memory of 3180	4776	cmd.exe	95
PID 4776 wrote to memory of 3180	4776	cmd.exe	95

C:\Users\Admin\AppData\Local\Temp\852e2bb74ff593ea00e70f62ba7639533e104e2df02e53b13cf61133f942fc0b.exe
"C:\Users\Admin\AppData\Local\Temp\852e2bb74ff593ea00e70f62ba7639533e104e2df02e53b13cf61133f942fc0b.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2812
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c taskkill /im "852e2bb74ff593ea00e70f62ba7639533e104e2df02e53b13cf61133f942fc0b.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\852e2bb74ff593ea00e70f62ba7639533e104e2df02e53b13cf61133f942fc0b.exe" & exit
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:4776
- - C:\Windows\SysWOW64\taskkill.exe
    taskkill /im "852e2bb74ff593ea00e70f62ba7639533e104e2df02e53b13cf61133f942fc0b.exe" /f
    3⤵
    - System Location Discovery: System Language Discovery
    - Kills process with taskkill
    - Suspicious use of AdjustPrivilegeToken
    PID:3180
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2812 -s 1416
  2⤵
  - Program crash
  PID:3460

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 452 -p 2812 -ip 2812
1⤵
PID:844

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\3HDB1LPD\download[1].htm

Filesize
1B

MD5
cfcd208495d565ef66e7dff9f98764da

SHA1
b6589fc6ab0dc82cf12099d1c2d40ab994e8410c

SHA256
5feceb66ffc86f38d952786c6d696c79c2dbc239dd4e91b46729d73a27fb57e9

SHA512
31bca02094eb78126a517b206a88c73cfa9ec6f704c7030d18212cace820f025f00bf0ea68dbf3f3a5436ca63b53bf7bf80ad8d5de7d8359d0b7fed9dbc3ab99

Download Submit
memory/2812-1-0x0000000002DD0000-0x0000000002ED0000-memory.dmp

Filesize
1024KB

Download
memory/2812-2-0x00000000048B0000-0x00000000048DD000-memory.dmp

Filesize
180KB

Download
memory/2812-3-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2812-9-0x0000000002DD0000-0x0000000002ED0000-memory.dmp

Filesize
1024KB

Download
memory/2812-12-0x00000000048B0000-0x00000000048DD000-memory.dmp

Filesize
180KB

Download
memory/2812-11-0x0000000000400000-0x0000000002B6A000-memory.dmp

Filesize
39.4MB

Download
memory/2812-13-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2812-22-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2812-21-0x0000000000400000-0x0000000002B6A000-memory.dmp

Filesize
39.4MB

Download