fbcfbc9ed5c1777946b0dad7a5813377960a134e9907d3e0669804d273defe90

Analysis

max time kernel
70s
max time network
54s
platform
windows10-2004_x64
resource
win10v2004-20231130-en
resource tags

arch:x64arch:x86image:win10v2004-20231130-enlocale:en-usos:windows10-2004-x64system
submitted
04-12-2023 15:01

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General

Target

Microsoft.HEVCVideoExtension_8wekyb3d8bbwe.x86.appx
Size

1.5MB
MD5

44b7ad970e89fcf6b79a0c59330986cd
SHA1

efb5fd58aa893d164281ae8395554b5dced9f42e
SHA256

cf76dd463c9383284d2e35b1cec39d085d0035705d6e62babf80b8ed349bd4d2
SHA512

3df552b9753bd84f3b46358b20ce151def24d20dd1a2ec1f00714c041ed26dd466f3d95f26557b0fe8c61bd0f342581d120c965866612f82ae7ca6c3e3258f55
SSDEEP

24576:vbwplGLGifNYt+JDeIS5ZVlebA5GN8MQtASNazuWgcc4mI6:cplGLr1YtGqDlebJWFYzuWgcc4mI6

Score

1^/10

Malware Config

Signatures

Modifies registry class 1 IoCs

Processes:

powershell.exe

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-423100829-2271632622-1028104103-1000_Classes\Local Settings	powershell.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

powershell.exe

pid	Process
4512	powershell.exe
4512	powershell.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

powershell.exe

description	pid	Process
Token: SeDebugPrivilege	4512	powershell.exe

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:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
powershell start shell:AppsFolder\Microsoft.HEVCVideoExtension_8wekyb3d8bbwe!App
1⤵
- Modifies registry class
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4512

C:\Windows\system32\Clipup.exe
"C:\Windows\system32\Clipup.exe" -p -pfm Microsoft.HEVCVideoExtension_8wekyb3d8bbwe
1⤵
PID:4020
- C:\Windows\system32\Clipup.exe
  "C:\Windows\system32\Clipup.exe" -p -pfm Microsoft.HEVCVideoExtension_8wekyb3d8bbwe -ppl C:\Windows\TEMP\tem4C8A.tmp
  2⤵
  PID:1220

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_xxky0kpm.ilb.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Windows\TEMP\tem4C8A.tmp

Filesize
32B

MD5
3a696dbd1a68a556870c204865719787

SHA1
161f8934ed3fc5133b1d3b93c44ee2b8a482725a

SHA256
d049946b7e31069d77406134dfcad4cdab5247777b1a560c7719b47f56dcc194

SHA512
ffabbfc291f644f9b17df375bf4a1635b584ffcea9f544168e1c5b40ad637d29b86e1e8d6c57075eead2a1e0542508cca43204d3b795d5c290ffa7cbff18e529

Download Submit
memory/1220-19-0x000002E7B2D80000-0x000002E7B2D90000-memory.dmp

Filesize
64KB

Download
memory/1220-24-0x000002E7B2D80000-0x000002E7B2D90000-memory.dmp

Filesize
64KB

Download
memory/1220-23-0x000002E7B2D80000-0x000002E7B2D90000-memory.dmp

Filesize
64KB

Download
memory/1220-21-0x000002E7B2D80000-0x000002E7B2D90000-memory.dmp

Filesize
64KB

Download
memory/1220-20-0x000002E7B2D80000-0x000002E7B2D90000-memory.dmp

Filesize
64KB

Download
memory/1220-18-0x000002E7B2D80000-0x000002E7B2D90000-memory.dmp

Filesize
64KB

Download
memory/4020-15-0x00000218911A0000-0x00000218911B0000-memory.dmp

Filesize
64KB

Download
memory/4020-16-0x00000218911A0000-0x00000218911B0000-memory.dmp

Filesize
64KB

Download
memory/4020-17-0x00000218911A0000-0x00000218911B0000-memory.dmp

Filesize
64KB

Download
memory/4020-26-0x00000218911A0000-0x00000218911B0000-memory.dmp

Filesize
64KB

Download
memory/4020-27-0x00000218911A0000-0x00000218911B0000-memory.dmp

Filesize
64KB

Download
memory/4512-9-0x000001DEA9020000-0x000001DEA9042000-memory.dmp

Filesize
136KB

Download
memory/4512-14-0x00007FFC3CF30000-0x00007FFC3D9F1000-memory.dmp

Filesize
10.8MB

Download
memory/4512-12-0x000001DEC1630000-0x000001DEC1640000-memory.dmp

Filesize
64KB

Download
memory/4512-11-0x000001DEC1630000-0x000001DEC1640000-memory.dmp

Filesize
64KB

Download
memory/4512-10-0x00007FFC3CF30000-0x00007FFC3D9F1000-memory.dmp

Filesize
10.8MB

Download