gcleaner | 8bff160da4a076aa92a27a0da6eff5911acd3e1461f7b6cf274fb7a35c984af0

Analysis

max time kernel
93s
max time network
94s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
04-09-2024 08:50

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General

Target

17755d80106436dddce6838115080879d71e018056ed2f72470ff8ddb7a48739.exe
Size

271KB
MD5

9ccfc9b35faf4c02d6d8c4d6430f94bb
SHA1

bf4d401d466b5c004141484d0bce7b5d12960a75
SHA256

17755d80106436dddce6838115080879d71e018056ed2f72470ff8ddb7a48739
SHA512

b2d175d1cfaf81694769ddde1e1a78be0af7caf4928a93be3b8902517495f93878ef70ee49aa5cebcd9b636f5fa4bda7a19f366b48ec00356475c3ab9c688c6c
SSDEEP

6144:gWBoBMvaF1X2TafXAHU1v9zmftWpacUYSp/1Ukgq:gtMvaCafXAHsvCwxk

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-1-5-21-945322488-2060912225-3527527000-1000\Control Panel\International\Geo\Nation	17755d80106436dddce6838115080879d71e018056ed2f72470ff8ddb7a48739.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
4552	3384	WerFault.exe	82

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	17755d80106436dddce6838115080879d71e018056ed2f72470ff8ddb7a48739.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
1836	taskkill.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1836	taskkill.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 3384 wrote to memory of 1848	3384	17755d80106436dddce6838115080879d71e018056ed2f72470ff8ddb7a48739.exe	94
PID 3384 wrote to memory of 1848	3384	17755d80106436dddce6838115080879d71e018056ed2f72470ff8ddb7a48739.exe	94
PID 3384 wrote to memory of 1848	3384	17755d80106436dddce6838115080879d71e018056ed2f72470ff8ddb7a48739.exe	94
PID 1848 wrote to memory of 1836	1848	cmd.exe	98
PID 1848 wrote to memory of 1836	1848	cmd.exe	98
PID 1848 wrote to memory of 1836	1848	cmd.exe	98

C:\Users\Admin\AppData\Local\Temp\17755d80106436dddce6838115080879d71e018056ed2f72470ff8ddb7a48739.exe
"C:\Users\Admin\AppData\Local\Temp\17755d80106436dddce6838115080879d71e018056ed2f72470ff8ddb7a48739.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3384
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c taskkill /im "17755d80106436dddce6838115080879d71e018056ed2f72470ff8ddb7a48739.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\17755d80106436dddce6838115080879d71e018056ed2f72470ff8ddb7a48739.exe" & exit
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:1848
- - C:\Windows\SysWOW64\taskkill.exe
    taskkill /im "17755d80106436dddce6838115080879d71e018056ed2f72470ff8ddb7a48739.exe" /f
    3⤵
    - System Location Discovery: System Language Discovery
    - Kills process with taskkill
    - Suspicious use of AdjustPrivilegeToken
    PID:1836
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3384 -s 1552
  2⤵
  - Program crash
  PID:4552

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 440 -p 3384 -ip 3384
1⤵
PID:1892

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

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\2VX66VOV\download[1].htm

Filesize
1B

MD5
cfcd208495d565ef66e7dff9f98764da

SHA1
b6589fc6ab0dc82cf12099d1c2d40ab994e8410c

SHA256
5feceb66ffc86f38d952786c6d696c79c2dbc239dd4e91b46729d73a27fb57e9

SHA512
31bca02094eb78126a517b206a88c73cfa9ec6f704c7030d18212cace820f025f00bf0ea68dbf3f3a5436ca63b53bf7bf80ad8d5de7d8359d0b7fed9dbc3ab99

Download Submit
memory/3384-1-0x00000000004D0000-0x00000000005D0000-memory.dmp

Filesize
1024KB

Download
memory/3384-2-0x0000000002060000-0x000000000208D000-memory.dmp

Filesize
180KB

Download
memory/3384-3-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/3384-9-0x00000000004D0000-0x00000000005D0000-memory.dmp

Filesize
1024KB

Download
memory/3384-10-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download
memory/3384-12-0x0000000002060000-0x000000000208D000-memory.dmp

Filesize
180KB

Download
memory/3384-13-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/3384-21-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download
memory/3384-22-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download