gcleaner | eb530e94908b4fb4d89f11a7a2198d0592c71f03d3d0eec8d3676b323a5fcbfc

Analysis

max time kernel
148s
max time network
155s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
07-09-2024 16:38

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General

Target

eb530e94908b4fb4d89f11a7a2198d0592c71f03d3d0eec8d3676b323a5fcbfc.exe
Size

294KB
MD5

04c1971726f97686dab7f7f7d9eb08f5
SHA1

c09e79d0d096643da3d2ffd410a3eb6096e07a43
SHA256

eb530e94908b4fb4d89f11a7a2198d0592c71f03d3d0eec8d3676b323a5fcbfc
SHA512

c114553508ef00cb1d4165e76716a331fc03a0d8246265e3d1a73d703907343e539f8efdbacaf7eac38f1443d32b9df0c50c6f98cbd6a6a0e7533771338b262b
SSDEEP

6144:g+FTfLtFZ7umhzZwW/C2BJDaodzlr6QF/Q:gQL3Z7uyziW/JBJDao5lr1/

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-1-5-21-656926755-4116854191-210765258-1000\Control Panel\International\Geo\Nation	eb530e94908b4fb4d89f11a7a2198d0592c71f03d3d0eec8d3676b323a5fcbfc.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
3496	1288	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	eb530e94908b4fb4d89f11a7a2198d0592c71f03d3d0eec8d3676b323a5fcbfc.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
1664	taskkill.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1664	taskkill.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 1288 wrote to memory of 2092	1288	eb530e94908b4fb4d89f11a7a2198d0592c71f03d3d0eec8d3676b323a5fcbfc.exe	95
PID 1288 wrote to memory of 2092	1288	eb530e94908b4fb4d89f11a7a2198d0592c71f03d3d0eec8d3676b323a5fcbfc.exe	95
PID 1288 wrote to memory of 2092	1288	eb530e94908b4fb4d89f11a7a2198d0592c71f03d3d0eec8d3676b323a5fcbfc.exe	95
PID 2092 wrote to memory of 1664	2092	cmd.exe	99
PID 2092 wrote to memory of 1664	2092	cmd.exe	99
PID 2092 wrote to memory of 1664	2092	cmd.exe	99

C:\Users\Admin\AppData\Local\Temp\eb530e94908b4fb4d89f11a7a2198d0592c71f03d3d0eec8d3676b323a5fcbfc.exe
"C:\Users\Admin\AppData\Local\Temp\eb530e94908b4fb4d89f11a7a2198d0592c71f03d3d0eec8d3676b323a5fcbfc.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1288
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c taskkill /im "eb530e94908b4fb4d89f11a7a2198d0592c71f03d3d0eec8d3676b323a5fcbfc.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\eb530e94908b4fb4d89f11a7a2198d0592c71f03d3d0eec8d3676b323a5fcbfc.exe" & exit
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2092
- - C:\Windows\SysWOW64\taskkill.exe
    taskkill /im "eb530e94908b4fb4d89f11a7a2198d0592c71f03d3d0eec8d3676b323a5fcbfc.exe" /f
    3⤵
    - System Location Discovery: System Language Discovery
    - Kills process with taskkill
    - Suspicious use of AdjustPrivilegeToken
    PID:1664
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1288 -s 1288
  2⤵
  - Program crash
  PID:3496

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 460 -p 1288 -ip 1288
1⤵
PID:4504

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\B9AWTLKS\download[1].htm

Filesize
1B

MD5
cfcd208495d565ef66e7dff9f98764da

SHA1
b6589fc6ab0dc82cf12099d1c2d40ab994e8410c

SHA256
5feceb66ffc86f38d952786c6d696c79c2dbc239dd4e91b46729d73a27fb57e9

SHA512
31bca02094eb78126a517b206a88c73cfa9ec6f704c7030d18212cace820f025f00bf0ea68dbf3f3a5436ca63b53bf7bf80ad8d5de7d8359d0b7fed9dbc3ab99

Download Submit
memory/1288-1-0x0000000000730000-0x0000000000830000-memory.dmp

Filesize
1024KB

Download
memory/1288-2-0x00000000021D0000-0x00000000021FD000-memory.dmp

Filesize
180KB

Download
memory/1288-3-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/1288-8-0x0000000000730000-0x0000000000830000-memory.dmp

Filesize
1024KB

Download
memory/1288-9-0x0000000000400000-0x0000000000451000-memory.dmp

Filesize
324KB

Download
memory/1288-11-0x00000000021D0000-0x00000000021FD000-memory.dmp

Filesize
180KB

Download
memory/1288-12-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/1288-24-0x0000000000400000-0x0000000000451000-memory.dmp

Filesize
324KB

Download
memory/1288-25-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download