fbcfbc9ed5c1777946b0dad7a5813377960a134e9907d3e0669804d273defe90

Analysis

max time kernel
132s
max time network
199s
platform
windows10-2004_x64
resource
win10v2004-20231215-es
resource tags

arch:x64arch:x86image:win10v2004-20231215-eslocale:es-esos:windows10-2004-x64systemwindows
submitted
10-02-2024 04:51

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General

Target

Microsoft.HEVCVideoExtension_8wekyb3d8bbwe.x64.appx
Size

2.8MB
MD5

09c88618e906359c2cd954cf17d93d20
SHA1

c1d33c313522f786aca03f14a3b964e7317dc359
SHA256

34725c932f8182e94d7dbe71fb1d9be1e97fabefb69c91cc52410b34d5f71db0
SHA512

7950d13180f1682305fc7e1ab8ce7b4ccb8e85181b0eb339a330d59a4f9eb0e247abb477dcd547b1759a5f056c58ba3b8051e28e312fd6429d6832a7dedb239a
SSDEEP

49152:8Ny40/+o2dsR13K8FKYThb+HWa/ihnus4RLr1YtGqDlebvFYzuWgccnA:8Ny40/Wdo6WTFa/iQ1RVYIi4beupcf

Score

1^/10

Malware Config

Signatures

Modifies registry class 1 IoCs

Processes:

powershell.exe

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-635608581-3370340891-292606865-1000_Classes\Local Settings	powershell.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

powershell.exe

pid	Process
4576	powershell.exe
4576	powershell.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

powershell.exe

description	pid	Process
Token: SeDebugPrivilege	4576	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:4576

C:\Windows\system32\Clipup.exe
"C:\Windows\system32\Clipup.exe" -p -pfm Microsoft.HEVCVideoExtension_8wekyb3d8bbwe
1⤵
PID:1476
- C:\Windows\system32\Clipup.exe
  "C:\Windows\system32\Clipup.exe" -p -pfm Microsoft.HEVCVideoExtension_8wekyb3d8bbwe -ppl C:\Windows\TEMP\temC1E8.tmp
  2⤵
  PID:4924

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_u3zmyap0.nw1.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Windows\TEMP\temC1E8.tmp

Filesize
32B

MD5
3a696dbd1a68a556870c204865719787

SHA1
161f8934ed3fc5133b1d3b93c44ee2b8a482725a

SHA256
d049946b7e31069d77406134dfcad4cdab5247777b1a560c7719b47f56dcc194

SHA512
ffabbfc291f644f9b17df375bf4a1635b584ffcea9f544168e1c5b40ad637d29b86e1e8d6c57075eead2a1e0542508cca43204d3b795d5c290ffa7cbff18e529

Download Submit
memory/1476-20-0x000001936E030000-0x000001936E040000-memory.dmp

Filesize
64KB

Download
memory/1476-31-0x000001936E030000-0x000001936E040000-memory.dmp

Filesize
64KB

Download
memory/1476-30-0x000001936E030000-0x000001936E040000-memory.dmp

Filesize
64KB

Download
memory/1476-21-0x000001936E030000-0x000001936E040000-memory.dmp

Filesize
64KB

Download
memory/1476-18-0x000001936E030000-0x000001936E040000-memory.dmp

Filesize
64KB

Download
memory/1476-19-0x000001936E030000-0x000001936E040000-memory.dmp

Filesize
64KB

Download
memory/4576-15-0x00000248FF4D0000-0x00000248FF4E0000-memory.dmp

Filesize
64KB

Download
memory/4576-12-0x00007FF958450000-0x00007FF958F11000-memory.dmp

Filesize
10.8MB

Download
memory/4576-13-0x00000248FF4D0000-0x00000248FF4E0000-memory.dmp

Filesize
64KB

Download
memory/4576-14-0x00000248FF680000-0x00000248FF782000-memory.dmp

Filesize
1.0MB

Download
memory/4576-0-0x00000248FF4E0000-0x00000248FF562000-memory.dmp

Filesize
520KB

Download
memory/4576-6-0x00000248FF3C0000-0x00000248FF3E2000-memory.dmp

Filesize
136KB

Download
memory/4576-11-0x00000248FF020000-0x00000248FF030000-memory.dmp

Filesize
64KB

Download
memory/4576-17-0x00007FF958450000-0x00007FF958F11000-memory.dmp

Filesize
10.8MB

Download
memory/4924-24-0x0000024C382F0000-0x0000024C38300000-memory.dmp

Filesize
64KB

Download
memory/4924-27-0x0000024C382F0000-0x0000024C38300000-memory.dmp

Filesize
64KB

Download
memory/4924-28-0x0000024C382F0000-0x0000024C38300000-memory.dmp

Filesize
64KB

Download
memory/4924-25-0x0000024C382F0000-0x0000024C38300000-memory.dmp

Filesize
64KB

Download
memory/4924-23-0x0000024C382F0000-0x0000024C38300000-memory.dmp

Filesize
64KB

Download
memory/4924-22-0x0000024C382F0000-0x0000024C38300000-memory.dmp

Filesize
64KB

Download