gcleaner | 539f00f5a8167e37dae485a21d3ea77505eade0fee65b452b808aaaf1777ccac

Analysis

max time kernel
147s
max time network
151s
platform
windows11-21h2_x64
resource
win11-20240802-en
resource tags

arch:x64arch:x86image:win11-20240802-enlocale:en-usos:windows11-21h2-x64system
submitted
07/09/2024, 07:53

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General

Target

539f00f5a8167e37dae485a21d3ea77505eade0fee65b452b808aaaf1777ccac.exe
Size

294KB
MD5

a372b929b61f1181dfa7047559a264aa
SHA1

5bf86f3cef79fa4a693a9acb25cef1928cee4949
SHA256

539f00f5a8167e37dae485a21d3ea77505eade0fee65b452b808aaaf1777ccac
SHA512

59b4674d325e176481fdc98489c6078f681d3935b1bdda8c5bfd428bd16d88b8a83d27c3ed0dbeeef4ec70b4cdaad82a15da5f5e9cc5f0d23fa1b84e41dcc13b
SSDEEP

6144:sfDaoUiX/Iorz8t/J7PiDnEIj/MLRw0Vdh1tQ:sbaozvIov8t/J4EIu5Vdz

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
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
2196	1956	WerFault.exe	79

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	539f00f5a8167e37dae485a21d3ea77505eade0fee65b452b808aaaf1777ccac.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
2348	taskkill.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2348	taskkill.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 1956 wrote to memory of 3684	1956	539f00f5a8167e37dae485a21d3ea77505eade0fee65b452b808aaaf1777ccac.exe	82
PID 1956 wrote to memory of 3684	1956	539f00f5a8167e37dae485a21d3ea77505eade0fee65b452b808aaaf1777ccac.exe	82
PID 1956 wrote to memory of 3684	1956	539f00f5a8167e37dae485a21d3ea77505eade0fee65b452b808aaaf1777ccac.exe	82
PID 3684 wrote to memory of 2348	3684	cmd.exe	86
PID 3684 wrote to memory of 2348	3684	cmd.exe	86
PID 3684 wrote to memory of 2348	3684	cmd.exe	86

C:\Users\Admin\AppData\Local\Temp\539f00f5a8167e37dae485a21d3ea77505eade0fee65b452b808aaaf1777ccac.exe
"C:\Users\Admin\AppData\Local\Temp\539f00f5a8167e37dae485a21d3ea77505eade0fee65b452b808aaaf1777ccac.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1956
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c taskkill /im "539f00f5a8167e37dae485a21d3ea77505eade0fee65b452b808aaaf1777ccac.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\539f00f5a8167e37dae485a21d3ea77505eade0fee65b452b808aaaf1777ccac.exe" & exit
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:3684
- - C:\Windows\SysWOW64\taskkill.exe
    taskkill /im "539f00f5a8167e37dae485a21d3ea77505eade0fee65b452b808aaaf1777ccac.exe" /f
    3⤵
    - System Location Discovery: System Language Discovery
    - Kills process with taskkill
    - Suspicious use of AdjustPrivilegeToken
    PID:2348
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1956 -s 1616
  2⤵
  - Program crash
  PID:2196

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 1956 -ip 1956
1⤵
PID:780

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

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\FF387UFK\download[1].htm

Filesize
1B

MD5
cfcd208495d565ef66e7dff9f98764da

SHA1
b6589fc6ab0dc82cf12099d1c2d40ab994e8410c

SHA256
5feceb66ffc86f38d952786c6d696c79c2dbc239dd4e91b46729d73a27fb57e9

SHA512
31bca02094eb78126a517b206a88c73cfa9ec6f704c7030d18212cace820f025f00bf0ea68dbf3f3a5436ca63b53bf7bf80ad8d5de7d8359d0b7fed9dbc3ab99

Download Submit
memory/1956-1-0x00000000005D0000-0x00000000006D0000-memory.dmp

Filesize
1024KB

Download
memory/1956-2-0x00000000022C0000-0x00000000022ED000-memory.dmp

Filesize
180KB

Download
memory/1956-3-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/1956-8-0x00000000005D0000-0x00000000006D0000-memory.dmp

Filesize
1024KB

Download
memory/1956-9-0x0000000000400000-0x0000000000451000-memory.dmp

Filesize
324KB

Download
memory/1956-11-0x00000000022C0000-0x00000000022ED000-memory.dmp

Filesize
180KB

Download
memory/1956-12-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/1956-21-0x0000000000400000-0x0000000000451000-memory.dmp

Filesize
324KB

Download
memory/1956-22-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download