gcleaner | 59bba11d5069ab5d7eb810cd75c59da534c97fa565428dff4ed8341b6e65a3ae

Analysis

max time kernel
121s
max time network
122s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
02/03/2025, 20:51

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General

Target

HEUR-Trojan-Downloader.Win32.Upatre.gen-431da2bfead5da6bfa24bf8ecd9a43863ff06f0ea5cf76f330d7359ade0b23b6.exe
Size

444KB
MD5

618b9c37470513652fcee22a118b31bd
SHA1

db1ef92f18adcdbdb7a7e41a3942b7bd47adac3d
SHA256

431da2bfead5da6bfa24bf8ecd9a43863ff06f0ea5cf76f330d7359ade0b23b6
SHA512

25ca82f50c2df6fa23c588f0e1e5f98ceb85463f41729ce029b44ed46eeeb7057cfbe2ee38246fc5b9f4d4604dab55ea3dc2553c42195747fb55ea9db9632ab2
SSDEEP

12288:jydTPaHeEs1JnOWYHU5YxA78uAtd44m1UDajcKaq:jOTPaHeE8OWXIuj4m2Dcaq

Score

10^/10

gcleaner onlylogger discovery loader

Malware Config

Extracted

Family

gcleaner

gcl-gb.biz

45.9.20.13

Signatures

GCleaner
GCleaner is a Pay-Per-Install malware loader first discovered in early 2019.
loader gcleaner
Gcleaner family
gcleaner
OnlyLogger
A tiny loader that uses IPLogger to get its payload.
loader onlylogger
Onlylogger family
onlylogger

OnlyLogger payload 4 IoCs

resource	yara_rule
behavioral1/memory/3020-3-0x0000000000400000-0x000000000044C000-memory.dmp	family_onlylogger
behavioral1/memory/3020-2-0x0000000000290000-0x00000000002D9000-memory.dmp	family_onlylogger
behavioral1/memory/3020-5-0x0000000000400000-0x000000000044C000-memory.dmp	family_onlylogger
behavioral1/memory/3020-4-0x0000000000400000-0x000000000089E000-memory.dmp	family_onlylogger

Deletes itself 1 IoCs

pid	Process
2984	cmd.exe

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	HEUR-Trojan-Downloader.Win32.Upatre.gen-431da2bfead5da6bfa24bf8ecd9a43863ff06f0ea5cf76f330d7359ade0b23b6.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

defense_evasion

pid	Process
3056	taskkill.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3056	taskkill.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 3020 wrote to memory of 2984	3020	HEUR-Trojan-Downloader.Win32.Upatre.gen-431da2bfead5da6bfa24bf8ecd9a43863ff06f0ea5cf76f330d7359ade0b23b6.exe	30
PID 3020 wrote to memory of 2984	3020	HEUR-Trojan-Downloader.Win32.Upatre.gen-431da2bfead5da6bfa24bf8ecd9a43863ff06f0ea5cf76f330d7359ade0b23b6.exe	30
PID 3020 wrote to memory of 2984	3020	HEUR-Trojan-Downloader.Win32.Upatre.gen-431da2bfead5da6bfa24bf8ecd9a43863ff06f0ea5cf76f330d7359ade0b23b6.exe	30
PID 3020 wrote to memory of 2984	3020	HEUR-Trojan-Downloader.Win32.Upatre.gen-431da2bfead5da6bfa24bf8ecd9a43863ff06f0ea5cf76f330d7359ade0b23b6.exe	30
PID 2984 wrote to memory of 3056	2984	cmd.exe	32
PID 2984 wrote to memory of 3056	2984	cmd.exe	32
PID 2984 wrote to memory of 3056	2984	cmd.exe	32
PID 2984 wrote to memory of 3056	2984	cmd.exe	32

C:\Users\Admin\AppData\Local\Temp\HEUR-Trojan-Downloader.Win32.Upatre.gen-431da2bfead5da6bfa24bf8ecd9a43863ff06f0ea5cf76f330d7359ade0b23b6.exe
"C:\Users\Admin\AppData\Local\Temp\HEUR-Trojan-Downloader.Win32.Upatre.gen-431da2bfead5da6bfa24bf8ecd9a43863ff06f0ea5cf76f330d7359ade0b23b6.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3020
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c taskkill /im "HEUR-Trojan-Downloader.Win32.Upatre.gen-431da2bfead5da6bfa24bf8ecd9a43863ff06f0ea5cf76f330d7359ade0b23b6.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\HEUR-Trojan-Downloader.Win32.Upatre.gen-431da2bfead5da6bfa24bf8ecd9a43863ff06f0ea5cf76f330d7359ade0b23b6.exe" & exit
  2⤵
  - Deletes itself
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2984
- - C:\Windows\SysWOW64\taskkill.exe
    taskkill /im "HEUR-Trojan-Downloader.Win32.Upatre.gen-431da2bfead5da6bfa24bf8ecd9a43863ff06f0ea5cf76f330d7359ade0b23b6.exe" /f
    3⤵
    - System Location Discovery: System Language Discovery
    - Kills process with taskkill
    - Suspicious use of AdjustPrivilegeToken
    PID:3056

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/3020-3-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/3020-2-0x0000000000290000-0x00000000002D9000-memory.dmp

Filesize
292KB

Download
memory/3020-1-0x0000000000A70000-0x0000000000B70000-memory.dmp

Filesize
1024KB

Download
memory/3020-5-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/3020-4-0x0000000000400000-0x000000000089E000-memory.dmp

Filesize
4.6MB

Download