b845ad16d2eee134b7d419762db15818eadc1f4af93e7db66a1df6268dec1678

Analysis

max time kernel
97s
max time network
164s
platform
windows7_x64
resource
win7-20231023-en
resource tags

arch:x64arch:x86image:win7-20231023-enlocale:en-usos:windows7-x64system
submitted
07/11/2023, 14:09

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General

Target

CCIS/CCleaner/CCleaner.exe
Size

17.6MB
MD5

63c29cf31a568b2d8087d524b58f92fd
SHA1

8028b1578b25881374c5788e530a3b45449db935
SHA256

01076f684915e79d957fa2ba8aafeda761111ab3cd8cbff17cf89a69bafa81c4
SHA512

db5fbc1ea660fdddc8f3c7fdd16b3c016762d5c092a56b4ec8e3a0ff4b2bdb2751e4edf22d84b6dc1df010bdf06d3471b06a5ec2b0a75aa55080c8308b980d11
SSDEEP

196608:w0PW9ihCz6wl2QG5PC39EBERPI9qvlfgw0rqNMwlxA9ORd3Y9mj:wCW9bvl2faPT4w0rqNuG3Y9e

Score

6^/10

bootkit persistence

Malware Config

Signatures

Checks for any installed AV software in registry 1 TTPs 6 IoCs

Security Software Discovery

T1518.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\Software\Wow6432Node\Avast Software\Avast	CCleaner64.exe
Key opened	\REGISTRY\USER\S-1-5-21-3618187007-3650799920-3290345941-1000\Software\Avast Software\Avast	CCleaner64.exe
Key opened	\REGISTRY\MACHINE\SOFTWARE\Avira\AntiVir Desktop	CCleaner64.exe
Key opened	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Avira\AntiVir Desktop	CCleaner64.exe
Key opened	\REGISTRY\USER\S-1-5-21-3618187007-3650799920-3290345941-1000\SOFTWARE\Avira\AntiVirus	CCleaner64.exe
Key opened	\REGISTRY\MACHINE\Software\Avast Software\Avast	CCleaner64.exe

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

Checks processor information in registry 2 TTPs 6 IoCs

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

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor	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 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	CCleaner64.exe

Suspicious behavior: EnumeratesProcesses 10 IoCs

pid	Process
2656	CCleaner64.exe
2656	CCleaner64.exe
2656	CCleaner64.exe
2656	CCleaner64.exe
2656	CCleaner64.exe
2656	CCleaner64.exe
2656	CCleaner64.exe
2656	CCleaner64.exe
2656	CCleaner64.exe
2656	CCleaner64.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeManageVolumePrivilege	2656	CCleaner64.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2656	CCleaner64.exe
2656	CCleaner64.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2948 wrote to memory of 2656	2948	CCleaner.exe	30
PID 2948 wrote to memory of 2656	2948	CCleaner.exe	30
PID 2948 wrote to memory of 2656	2948	CCleaner.exe	30
PID 2948 wrote to memory of 2656	2948	CCleaner.exe	30

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\CCIS\CCleaner\CCleaner.exe
"C:\Users\Admin\AppData\Local\Temp\CCIS\CCleaner\CCleaner.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:2948
- C:\Users\Admin\AppData\Local\Temp\CCIS\CCleaner\CCleaner64.exe
  "C:\Users\Admin\AppData\Local\Temp\CCIS\CCleaner\CCleaner.exe"
  2⤵
  - Checks for any installed AV software in registry
  - Writes to the Master Boot Record (MBR)
  - Checks processor information in registry
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  PID:2656

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

Software Discovery

T1518

Security Software Discovery

T1518.001

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015

Filesize
344B

MD5
626de3da1b49f03a64b4d31d421d01c9

SHA1
437ad8f9207382774c5af3f62adc3ffd2a03e857

SHA256
90a7a9f92d5d85186ae4411aec0421a9b11c5a20a16413e1d476ae37fd93dd46

SHA512
34778b9d0a86c31647a9780c027119db07b9206ddb0088fa7b908203c0d4762bdf21916682135689ff6f70f7c5e418f3aef72e077976a3cafa4bd2c87a0a8402

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\WebCache\V01.log

Filesize
512KB

MD5
33da1f08646b8fcea02390c227477969

SHA1
0f3f5be27e3173b56bdfac1e48d1fe122b7e3b65

SHA256
5deb30ad618057d5f2849d65a75211910069c8a33b20dc2b9fa4943ba5abe213

SHA512
1ea919b07fdf6c40de3c294d7a7211593158d08f1a391f3c4855e04786f7d056244c36947300c0f5a655a4f869518d01a0b3fc788d766f2448c476cc3c6c236e

Download Submit
C:\Users\Admin\AppData\Local\Temp\CabDB34.tmp

Filesize
61KB

MD5
f3441b8572aae8801c04f3060b550443

SHA1
4ef0a35436125d6821831ef36c28ffaf196cda15

SHA256
6720349e7d82ee0a8e73920d3c2b7cb2912d9fcf2edb6fd98f2f12820158b0bf

SHA512
5ba01ba421b50030e380ae6bbcd2f681f2a91947fe7fedb3c8e6b5f24dce9517abf57b1cf26cc6078d4bb53bde6fcfb2561591337c841f8f2cb121a3d71661b9

Download Submit
C:\Users\Admin\AppData\Local\Temp\TarDB47.tmp

Filesize
163KB

MD5
9441737383d21192400eca82fda910ec

SHA1
725e0d606a4fc9ba44aa8ffde65bed15e65367e4

SHA256
bc3a6e84e41faeb57e7c21aa3b60c2a64777107009727c5b7c0ed8fe658909e5

SHA512
7608dd653a66cd364392a78d4711b48d1707768d36996e4d38871c6843b5714e1d7da4b4cc6db969e6000cfa182bcb74216ef6823d1063f036fc5c3413fb8dcf

Download Submit
memory/2656-88-0x0000000002650000-0x0000000002651000-memory.dmp

Filesize
4KB

Download
memory/2656-94-0x0000000002A10000-0x0000000002A11000-memory.dmp

Filesize
4KB

Download
memory/2656-89-0x0000000002660000-0x0000000002661000-memory.dmp

Filesize
4KB

Download
memory/2656-90-0x0000000002670000-0x0000000002671000-memory.dmp

Filesize
4KB

Download
memory/2656-91-0x0000000002840000-0x0000000002841000-memory.dmp

Filesize
4KB

Download
memory/2656-92-0x0000000002850000-0x0000000002851000-memory.dmp

Filesize
4KB

Download
memory/2656-93-0x0000000002860000-0x0000000002861000-memory.dmp

Filesize
4KB

Download
memory/2656-87-0x0000000002640000-0x0000000002641000-memory.dmp

Filesize
4KB

Download
memory/2656-95-0x0000000002A10000-0x0000000002A11000-memory.dmp

Filesize
4KB

Download
memory/2656-96-0x0000000006200000-0x0000000006210000-memory.dmp

Filesize
64KB

Download
memory/2656-102-0x00000000062C0000-0x00000000062D0000-memory.dmp

Filesize
64KB

Download
memory/2656-86-0x0000000000430000-0x0000000000431000-memory.dmp

Filesize
4KB

Download
memory/2656-127-0x0000000005F20000-0x0000000005F28000-memory.dmp

Filesize
32KB

Download
memory/2656-130-0x0000000002A30000-0x0000000002A38000-memory.dmp

Filesize
32KB

Download
memory/2656-132-0x0000000002A30000-0x0000000002A31000-memory.dmp

Filesize
4KB

Download
memory/2656-137-0x0000000004530000-0x0000000004531000-memory.dmp

Filesize
4KB

Download