gcleaner | a89101fbb3524961362af049e54e8d2b93ed0a6120b72b9c7824ade4db8a8c34

Analysis

max time kernel
94s
max time network
96s
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, 18:13

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General

Target

a89101fbb3524961362af049e54e8d2b93ed0a6120b72b9c7824ade4db8a8c34.exe
Size

294KB
MD5

e31f3a2e963a7e7129a9d6ae35c6384d
SHA1

4ff2507be78ebc8ad15374f4cad94258cc7de470
SHA256

a89101fbb3524961362af049e54e8d2b93ed0a6120b72b9c7824ade4db8a8c34
SHA512

c646ad6f94f34850e3fb29d4936abd33e79680b556936dd11f36743f6c5f264ba1a84b90ab5adf645803991c7131c8de021c82f1b98974100203e42764ead623
SSDEEP

6144:2CBbfnESxoe7rWI8SRVOLss9E5dhDs0U8S/wjfF/Q:2gn9xoe7LzRQJ9As0vR/

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	a89101fbb3524961362af049e54e8d2b93ed0a6120b72b9c7824ade4db8a8c34.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
3248	2068	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	a89101fbb3524961362af049e54e8d2b93ed0a6120b72b9c7824ade4db8a8c34.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
2480	taskkill.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2480	taskkill.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 2068 wrote to memory of 4880	2068	a89101fbb3524961362af049e54e8d2b93ed0a6120b72b9c7824ade4db8a8c34.exe	94
PID 2068 wrote to memory of 4880	2068	a89101fbb3524961362af049e54e8d2b93ed0a6120b72b9c7824ade4db8a8c34.exe	94
PID 2068 wrote to memory of 4880	2068	a89101fbb3524961362af049e54e8d2b93ed0a6120b72b9c7824ade4db8a8c34.exe	94
PID 4880 wrote to memory of 2480	4880	cmd.exe	98
PID 4880 wrote to memory of 2480	4880	cmd.exe	98
PID 4880 wrote to memory of 2480	4880	cmd.exe	98

C:\Users\Admin\AppData\Local\Temp\a89101fbb3524961362af049e54e8d2b93ed0a6120b72b9c7824ade4db8a8c34.exe
"C:\Users\Admin\AppData\Local\Temp\a89101fbb3524961362af049e54e8d2b93ed0a6120b72b9c7824ade4db8a8c34.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2068
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c taskkill /im "a89101fbb3524961362af049e54e8d2b93ed0a6120b72b9c7824ade4db8a8c34.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\a89101fbb3524961362af049e54e8d2b93ed0a6120b72b9c7824ade4db8a8c34.exe" & exit
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:4880
- - C:\Windows\SysWOW64\taskkill.exe
    taskkill /im "a89101fbb3524961362af049e54e8d2b93ed0a6120b72b9c7824ade4db8a8c34.exe" /f
    3⤵
    - System Location Discovery: System Language Discovery
    - Kills process with taskkill
    - Suspicious use of AdjustPrivilegeToken
    PID:2480
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2068 -s 1492
  2⤵
  - Program crash
  PID:3248

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 432 -p 2068 -ip 2068
1⤵
PID:3444

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\3HDB1LPD\download[1].htm

Filesize
1B

MD5
cfcd208495d565ef66e7dff9f98764da

SHA1
b6589fc6ab0dc82cf12099d1c2d40ab994e8410c

SHA256
5feceb66ffc86f38d952786c6d696c79c2dbc239dd4e91b46729d73a27fb57e9

SHA512
31bca02094eb78126a517b206a88c73cfa9ec6f704c7030d18212cace820f025f00bf0ea68dbf3f3a5436ca63b53bf7bf80ad8d5de7d8359d0b7fed9dbc3ab99

Download Submit
memory/2068-1-0x0000000000520000-0x0000000000620000-memory.dmp

Filesize
1024KB

Download
memory/2068-2-0x00000000004D0000-0x00000000004FD000-memory.dmp

Filesize
180KB

Download
memory/2068-3-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2068-8-0x0000000000520000-0x0000000000620000-memory.dmp

Filesize
1024KB

Download
memory/2068-10-0x0000000000400000-0x0000000000451000-memory.dmp

Filesize
324KB

Download
memory/2068-11-0x00000000004D0000-0x00000000004FD000-memory.dmp

Filesize
180KB

Download
memory/2068-12-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2068-21-0x0000000000400000-0x0000000000451000-memory.dmp

Filesize
324KB

Download
memory/2068-22-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download