c43f913e75a18bcddedf040beec903b94336734537ca6816d8174e8237822870

Analysis

max time kernel
150s
max time network
155s
platform
windows10-2004_x64
resource
win10v2004-20231023-en
resource tags

arch:x64arch:x86image:win10v2004-20231023-enlocale:en-usos:windows10-2004-x64system
submitted
16/11/2023, 16:27

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General

Target

1.exe
Size

4.3MB
MD5

3f005ce85f08a09e93679254e35df782
SHA1

e0ac1e6e68a1a79edd16215447a6c8c3ab068b5d
SHA256

c43f913e75a18bcddedf040beec903b94336734537ca6816d8174e8237822870
SHA512

cbfafb5a2422f2c5488915d30908f37f9a152e1901d53ce2b11542fefce754c141eef46d2d9e52ddc27b9f6ec34b0d6d2c56f3c08532a8ee9636804554c80db1
SSDEEP

49152:m6+OL0vnSGYGY+9C4OXk9PhRBPhILfF/QxamXYOCs5EbNfylJTEXKobB1:m7jHTXXREYJgXK

Score

7^/10

persistence

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2336	WindowsAutoUpdate.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-2231940048-779848787-2990559741-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\WindowsAutoUpdate.exe = "C:\\Users\\Admin\\AppData\\Roaming\\WindowsAutoUpdate.exe"	1.exe

Creates scheduled task(s) 1 TTPs 1 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence

Scheduled Task/Job

T1053

pid	Process
5076	schtasks.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
3644	powershell.exe
3644	powershell.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3644	powershell.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 5016 wrote to memory of 3644	5016	1.exe	84
PID 5016 wrote to memory of 3644	5016	1.exe	84
PID 3644 wrote to memory of 5076	3644	powershell.exe	86
PID 3644 wrote to memory of 5076	3644	powershell.exe	86

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\1.exe
"C:\Users\Admin\AppData\Local\Temp\1.exe"
1⤵
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:5016
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  powershell "" "SCHTASKS.exe /Create /SC MINUTE /ED 12/12/2030 /TN Soft /TR C:\Users\Admin\AppData\Roaming\WindowsAutoUpdate.exe"
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:3644
- - C:\Windows\system32\schtasks.exe
    "C:\Windows\system32\schtasks.exe" /Create /SC MINUTE /ED 12/12/2030 /TN Soft /TR C:\Users\Admin\AppData\Roaming\WindowsAutoUpdate.exe
    3⤵
    - Creates scheduled task(s)
    PID:5076

C:\Users\Admin\AppData\Roaming\WindowsAutoUpdate.exe
C:\Users\Admin\AppData\Roaming\WindowsAutoUpdate.exe
1⤵
- Executes dropped EXE
PID:2336

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

T1053

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Scheduled Task/Job

T1053

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Scheduled Task/Job

T1053

Defense Evasion

Modify Registry

T1112

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_j42zqh31.oq3.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\AppData\Roaming\WindowsAutoUpdate.exe

Filesize
4.3MB

MD5
3f005ce85f08a09e93679254e35df782

SHA1
e0ac1e6e68a1a79edd16215447a6c8c3ab068b5d

SHA256
c43f913e75a18bcddedf040beec903b94336734537ca6816d8174e8237822870

SHA512
cbfafb5a2422f2c5488915d30908f37f9a152e1901d53ce2b11542fefce754c141eef46d2d9e52ddc27b9f6ec34b0d6d2c56f3c08532a8ee9636804554c80db1

Download Submit
C:\Users\Admin\AppData\Roaming\WindowsAutoUpdate.exe

Filesize
4.3MB

MD5
3f005ce85f08a09e93679254e35df782

SHA1
e0ac1e6e68a1a79edd16215447a6c8c3ab068b5d

SHA256
c43f913e75a18bcddedf040beec903b94336734537ca6816d8174e8237822870

SHA512
cbfafb5a2422f2c5488915d30908f37f9a152e1901d53ce2b11542fefce754c141eef46d2d9e52ddc27b9f6ec34b0d6d2c56f3c08532a8ee9636804554c80db1

Download Submit
memory/3644-1-0x0000023CC8AE0000-0x0000023CC8B02000-memory.dmp

Filesize
136KB

Download
memory/3644-11-0x00007FF82FA30000-0x00007FF8304F1000-memory.dmp

Filesize
10.8MB

Download
memory/3644-12-0x0000023CC69F0000-0x0000023CC6A00000-memory.dmp

Filesize
64KB

Download
memory/3644-13-0x0000023CC69F0000-0x0000023CC6A00000-memory.dmp

Filesize
64KB

Download
memory/3644-16-0x00007FF82FA30000-0x00007FF8304F1000-memory.dmp

Filesize
10.8MB

Download