gcleaner | 6f4c8936d3a99cb30a58c294ceeaf158587a6fc1776a6dba4213134e4225734c

Analysis

max time kernel
135s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
30/08/2024, 07:57

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

e4ff3bee77eea05ba54f0e0757341837.exe
Size

308KB
MD5

e4ff3bee77eea05ba54f0e0757341837
SHA1

690e83f77e71a3d5366453ce20809e0815f97105
SHA256

6f4c8936d3a99cb30a58c294ceeaf158587a6fc1776a6dba4213134e4225734c
SHA512

2789f481bde6012d3a80c94d38a77696a1f48ddbdc65c66c874ae47d8532ee7efc193578f482e574769ed7ae9d0eb6d0a471631614b5019dd6d150b2f6336f55
SSDEEP

3072:nMjOScSxw4QffmVYe+xm5Y3mh8vJY+pvK7UOt1FI2JsHI4aMvy/:nMjOSzxdQxeD5Yc8vK7wYso4amy

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-1-5-21-4182098368-2521458979-3782681353-1000\Control Panel\International\Geo\Nation	e4ff3bee77eea05ba54f0e0757341837.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
3876	3336	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	e4ff3bee77eea05ba54f0e0757341837.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
752	taskkill.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	752	taskkill.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 3336 wrote to memory of 548	3336	e4ff3bee77eea05ba54f0e0757341837.exe	95
PID 3336 wrote to memory of 548	3336	e4ff3bee77eea05ba54f0e0757341837.exe	95
PID 3336 wrote to memory of 548	3336	e4ff3bee77eea05ba54f0e0757341837.exe	95
PID 548 wrote to memory of 752	548	cmd.exe	99
PID 548 wrote to memory of 752	548	cmd.exe	99
PID 548 wrote to memory of 752	548	cmd.exe	99

C:\Users\Admin\AppData\Local\Temp\e4ff3bee77eea05ba54f0e0757341837.exe
"C:\Users\Admin\AppData\Local\Temp\e4ff3bee77eea05ba54f0e0757341837.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3336
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c taskkill /im "e4ff3bee77eea05ba54f0e0757341837.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\e4ff3bee77eea05ba54f0e0757341837.exe" & exit
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:548
- - C:\Windows\SysWOW64\taskkill.exe
    taskkill /im "e4ff3bee77eea05ba54f0e0757341837.exe" /f
    3⤵
    - System Location Discovery: System Language Discovery
    - Kills process with taskkill
    - Suspicious use of AdjustPrivilegeToken
    PID:752
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3336 -s 1484
  2⤵
  - Program crash
  PID:3876

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 3336 -ip 3336
1⤵
PID:464

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\LI43KEDR\download[1].htm

Filesize
1B

MD5
cfcd208495d565ef66e7dff9f98764da

SHA1
b6589fc6ab0dc82cf12099d1c2d40ab994e8410c

SHA256
5feceb66ffc86f38d952786c6d696c79c2dbc239dd4e91b46729d73a27fb57e9

SHA512
31bca02094eb78126a517b206a88c73cfa9ec6f704c7030d18212cace820f025f00bf0ea68dbf3f3a5436ca63b53bf7bf80ad8d5de7d8359d0b7fed9dbc3ab99

Download Submit
memory/3336-1-0x0000000000490000-0x0000000000590000-memory.dmp

Filesize
1024KB

Download
memory/3336-2-0x0000000000460000-0x000000000048D000-memory.dmp

Filesize
180KB

Download
memory/3336-3-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/3336-9-0x0000000000490000-0x0000000000590000-memory.dmp

Filesize
1024KB

Download
memory/3336-10-0x0000000000400000-0x0000000000454000-memory.dmp

Filesize
336KB

Download
memory/3336-12-0x0000000000460000-0x000000000048D000-memory.dmp

Filesize
180KB

Download
memory/3336-13-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/3336-21-0x0000000000400000-0x0000000000454000-memory.dmp

Filesize
336KB

Download
memory/3336-22-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download