ebd3bc74866f6cd818141da0ff7ae51b4b1970dad1695f3f57845909f9c7b7a4

Analysis

max time kernel
107s
max time network
100s
platform
windows11-21h2_x64
resource
win11-20240802-en
resource tags

arch:x64arch:x86image:win11-20240802-enlocale:en-usos:windows11-21h2-x64system
submitted
14-08-2024 03:46

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General

Target

CCleaner.exe
Size

37.1MB
MD5

6b4c65034b779fa91129d036f2854a55
SHA1

b0c21f129f58f4195cbffb8268b5693b0a4c4f2a
SHA256

9cea0bdcf677382833e973158a0c7c9b5dee86fbd7c6fdb8b114aa7b23e64d58
SHA512

b3d16086c09b23b6e8fa796e307348c005a2885c6067a5d180eeba39178d1a37fa6dffd4aad6f7a1624c9e150bf3b62f49ebfaa7612ebb26dc34264fcee88dba
SSDEEP

393216:0OriB5sAYYtY8t0fLDko46M+ApgN7ulGqbWQU53MgbAQh0ervLmM4A3WTrqN4w+n:9riB5sAdS8t08o4auHWeLw+AugFs1J

Score

6^/10

bootkit discovery persistence

Malware Config

Signatures

Writes to the Master Boot Record (MBR) 1 TTPs 1 IoCs

Bootkits write to the MBR to gain persistence at a level below the operating system.

bootkit persistence

Bootkit

T1542.003

description	ioc	Process
File opened for modification	\??\PhysicalDrive0	CCleaner64.exe

System Location Discovery: System Language Discovery 1 TTPs 1 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	CCleaner.exe

Checks processor information in registry 2 TTPs 5 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	CCleaner64.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	CCleaner64.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\Description\System\CentralProcessor\0	CCleaner64.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	CCleaner64.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~Mhz	CCleaner64.exe

Suspicious behavior: EnumeratesProcesses 18 IoCs

pid	Process
2944	CCleaner64.exe
2944	CCleaner64.exe
2944	CCleaner64.exe
2944	CCleaner64.exe
2944	CCleaner64.exe
2944	CCleaner64.exe
2944	CCleaner64.exe
2944	CCleaner64.exe
2944	CCleaner64.exe
2944	CCleaner64.exe
2944	CCleaner64.exe
2944	CCleaner64.exe
2944	CCleaner64.exe
2944	CCleaner64.exe
2944	CCleaner64.exe
2944	CCleaner64.exe
2944	CCleaner64.exe
2944	CCleaner64.exe

Suspicious use of AdjustPrivilegeToken 5 IoCs

description	pid	Process
Token: SeDebugPrivilege	2944	CCleaner64.exe
Token: SeShutdownPrivilege	2944	CCleaner64.exe
Token: SeCreatePagefilePrivilege	2944	CCleaner64.exe
Token: SeShutdownPrivilege	2944	CCleaner64.exe
Token: SeCreatePagefilePrivilege	2944	CCleaner64.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2944	CCleaner64.exe
2944	CCleaner64.exe

Suspicious use of WriteProcessMemory 2 IoCs

description	pid	Process	procid_target
PID 484 wrote to memory of 2944	484	CCleaner.exe	78
PID 484 wrote to memory of 2944	484	CCleaner.exe	78

Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
persistence

Query Registry
T1012

C:\Users\Admin\AppData\Local\Temp\CCleaner.exe
"C:\Users\Admin\AppData\Local\Temp\CCleaner.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:484
- C:\Users\Admin\AppData\Local\Temp\CCleaner64.exe
  "C:\Users\Admin\AppData\Local\Temp\CCleaner.exe"
  2⤵
  - Writes to the Master Boot Record (MBR)
  - Checks processor information in registry
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  PID:2944

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Pre-OS Boot

T1542

Bootkit

T1542.003

Privilege Escalation

Defense Evasion

Pre-OS Boot

T1542

Bootkit

T1542.003

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

Replay Monitor

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Downloads

memory/2944-0-0x00007FF7BD4A0000-0x00007FF7BD4A1000-memory.dmp

Filesize
4KB

Download
memory/2944-1-0x00007FF7BD4B0000-0x00007FF7BD4B1000-memory.dmp

Filesize
4KB

Download
memory/2944-2-0x00007FF7BD4C0000-0x00007FF7BD4C1000-memory.dmp

Filesize
4KB

Download
memory/2944-3-0x00007FF7BD4D0000-0x00007FF7BD4D1000-memory.dmp

Filesize
4KB

Download
memory/2944-4-0x00007FF7BD4E0000-0x00007FF7BD4E1000-memory.dmp

Filesize
4KB

Download
memory/2944-5-0x00007FF7BD540000-0x00007FF7BD541000-memory.dmp

Filesize
4KB

Download
memory/2944-6-0x00007FF7BD4F0000-0x00007FF7BD4F1000-memory.dmp

Filesize
4KB

Download
memory/2944-7-0x00007FF7BD030000-0x00007FF7BD031000-memory.dmp

Filesize
4KB

Download