fbcfbc9ed5c1777946b0dad7a5813377960a134e9907d3e0669804d273defe90

Resubmissions

25-10-2023 13:58

231025-q979cshd42 1

25-10-2023 13:54

231025-q72c2ahc87 3

25-10-2023 13:53

231025-q6ywhshc46 1

Analysis

max time kernel
93s
max time network
195s
platform
windows10-2004_x64
resource
win10v2004-20231023-en
resource tags

arch:x64arch:x86image:win10v2004-20231023-enlocale:en-usos:windows10-2004-x64system
submitted
25-10-2023 13:53

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

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-1-5-21-3125601242-331447593-1512828465-1000_Classes\Local Settings	powershell.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

powershell.exe

pid	Process
2808	powershell.exe
2808	powershell.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

powershell.exe

description	pid	Process
Token: SeDebugPrivilege	2808	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:2808

C:\Windows\system32\Clipup.exe
"C:\Windows\system32\Clipup.exe" -p -pfm Microsoft.HEVCVideoExtension_8wekyb3d8bbwe
1⤵
PID:2404
- C:\Windows\system32\Clipup.exe
  "C:\Windows\system32\Clipup.exe" -p -pfm Microsoft.HEVCVideoExtension_8wekyb3d8bbwe -ppl C:\Windows\TEMP\temBC17.tmp
  2⤵
  PID:5000

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

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_1wfweygt.s5p.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Windows\TEMP\temBC17.tmp

Filesize
32B

MD5
3a696dbd1a68a556870c204865719787

SHA1
161f8934ed3fc5133b1d3b93c44ee2b8a482725a

SHA256
d049946b7e31069d77406134dfcad4cdab5247777b1a560c7719b47f56dcc194

SHA512
ffabbfc291f644f9b17df375bf4a1635b584ffcea9f544168e1c5b40ad637d29b86e1e8d6c57075eead2a1e0542508cca43204d3b795d5c290ffa7cbff18e529

Download Submit
memory/2404-24-0x000001D82C110000-0x000001D82C120000-memory.dmp

Filesize
64KB

Download
memory/2404-12-0x000001D82C110000-0x000001D82C120000-memory.dmp

Filesize
64KB

Download
memory/2404-15-0x000001D82C110000-0x000001D82C120000-memory.dmp

Filesize
64KB

Download
memory/2404-14-0x000001D82C110000-0x000001D82C120000-memory.dmp

Filesize
64KB

Download
memory/2404-25-0x000001D82C110000-0x000001D82C120000-memory.dmp

Filesize
64KB

Download
memory/2808-9-0x000001E4E7890000-0x000001E4E78B2000-memory.dmp

Filesize
136KB

Download
memory/2808-11-0x00007FFFAAED0000-0x00007FFFAB991000-memory.dmp

Filesize
10.8MB

Download
memory/2808-26-0x00007FFFAAED0000-0x00007FFFAB991000-memory.dmp

Filesize
10.8MB

Download
memory/5000-19-0x000002561FED0000-0x000002561FEE0000-memory.dmp

Filesize
64KB

Download
memory/5000-21-0x000002561FED0000-0x000002561FEE0000-memory.dmp

Filesize
64KB

Download
memory/5000-22-0x000002561FED0000-0x000002561FEE0000-memory.dmp

Filesize
64KB

Download
memory/5000-18-0x000002561FED0000-0x000002561FEE0000-memory.dmp

Filesize
64KB

Download
memory/5000-16-0x000002561FED0000-0x000002561FEE0000-memory.dmp

Filesize
64KB

Download