f4a9bfa61327da14613ff3f55d82117b7c2960e406533cd9edcef933a1f683b7

Analysis

max time kernel
148s
max time network
115s
platform
windows11-ltsc_2024_x64
resource
win11ltsc2024-20260709-en
resource tags

arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
submitted
24/07/2026, 03:16

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General

Target
OneDriveUpdate.exe
Size 351KB
Sample260724-dsrttsz1b1
SHA256 f4a9bfa61327da14613ff3f55d82117b7c2960e406533cd9edcef933a1f683b7
MD5 f67439047dc6a856b33055707b564e34
SHA1 060f7dffa612965013ceaf78116193edf0aa4713
SHA512 a69a3326192953a010e1ea17326e3a040bb2767a4f765387b04c72a23f7f00cc80f5b183b856f15fd97459c02589b0d7c6717f9400c3e9a3e3615699ab795e9b
SSDEEP 6144:MSYuLs6wLNg+GceFU8/+i/jFLjXg02cDqLOX5HQS2Y0fji2:MATwZnTGdlg+x5HQK0
TLSH
T13A745C21FB955CF9D1A6C03482554A629A737CCB0B21AAFF23D442352F2AAF56F3C714
MD5 SHA1 SHA512 SSDEEP TLSH

Score

8^/10

defense_evasion execution persistence

Malware Config

Signatures

Command and Scripting Interpreter: PowerShell 1 TTPs 2 IoCs

Run Powershell and hide display window.

execution

PowerShell

T1059.001

pid	Process
5476	powershell.exe
5548	powershell.exe

Drops startup file 1 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\OneDrive.lnk	powershell.exe

Executes dropped EXE 3 IoCs

pid	Process
1504	OneDriveUpdate.exe
4564	OneDriveUpdate.exe
4796	OneDriveUpdate.exe

Adds Run key to start application 2 TTPs 3 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-3797332335-34111092-3597280141-1000\Software\Microsoft\Windows\CurrentVersion\Run\WindowsHealthMonitor = "C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\Windows\\SendTo\\OneDriveUpdate.exe"	reg.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3797332335-34111092-3597280141-1000\Software\Microsoft\Windows\CurrentVersion\Run\SysHelper = "C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\Windows\\Themes\\ThemeSync.exe"	reg.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3797332335-34111092-3597280141-1000\Software\Microsoft\Windows\CurrentVersion\RunOnce\Setup = "C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\Windows\\SendTo\\OneDriveUpdate.exe"	reg.exe

Executes a VBScript file via the Windows Script Host. 1 TTPs 1 IoCs

execution

Visual Basic

T1059.005

pid	Process
4160	wscript.exe

Modifies registry key 1 TTPs 3 IoCs

Modify Registry

T1112

pid	Process
3048	reg.exe
5152	reg.exe
6092	reg.exe

Suspicious behavior: EnumeratesProcesses 5 IoCs

pid	Process
5476	powershell.exe
5476	powershell.exe
5548	powershell.exe
5548	powershell.exe
5548	powershell.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	5476	powershell.exe
Token: SeIncreaseQuotaPrivilege	5476	powershell.exe
Token: SeSecurityPrivilege	5476	powershell.exe
Token: SeTakeOwnershipPrivilege	5476	powershell.exe
Token: SeLoadDriverPrivilege	5476	powershell.exe
Token: SeSystemProfilePrivilege	5476	powershell.exe
Token: SeSystemtimePrivilege	5476	powershell.exe
Token: SeProfSingleProcessPrivilege	5476	powershell.exe
Token: SeIncBasePriorityPrivilege	5476	powershell.exe
Token: SeCreatePagefilePrivilege	5476	powershell.exe
Token: SeBackupPrivilege	5476	powershell.exe
Token: SeRestorePrivilege	5476	powershell.exe
Token: SeShutdownPrivilege	5476	powershell.exe
Token: SeDebugPrivilege	5476	powershell.exe
Token: SeSystemEnvironmentPrivilege	5476	powershell.exe
Token: SeRemoteShutdownPrivilege	5476	powershell.exe
Token: SeUndockPrivilege	5476	powershell.exe
Token: SeManageVolumePrivilege	5476	powershell.exe
Token: 33	5476	powershell.exe
Token: 34	5476	powershell.exe
Token: 35	5476	powershell.exe
Token: 36	5476	powershell.exe
Token: SeIncreaseQuotaPrivilege	5476	powershell.exe
Token: SeSecurityPrivilege	5476	powershell.exe
Token: SeTakeOwnershipPrivilege	5476	powershell.exe
Token: SeLoadDriverPrivilege	5476	powershell.exe
Token: SeSystemProfilePrivilege	5476	powershell.exe
Token: SeSystemtimePrivilege	5476	powershell.exe
Token: SeProfSingleProcessPrivilege	5476	powershell.exe
Token: SeIncBasePriorityPrivilege	5476	powershell.exe
Token: SeCreatePagefilePrivilege	5476	powershell.exe
Token: SeBackupPrivilege	5476	powershell.exe
Token: SeRestorePrivilege	5476	powershell.exe
Token: SeShutdownPrivilege	5476	powershell.exe
Token: SeDebugPrivilege	5476	powershell.exe
Token: SeSystemEnvironmentPrivilege	5476	powershell.exe
Token: SeRemoteShutdownPrivilege	5476	powershell.exe
Token: SeUndockPrivilege	5476	powershell.exe
Token: SeManageVolumePrivilege	5476	powershell.exe
Token: 33	5476	powershell.exe
Token: 34	5476	powershell.exe
Token: 35	5476	powershell.exe
Token: 36	5476	powershell.exe
Token: SeIncreaseQuotaPrivilege	5476	powershell.exe
Token: SeSecurityPrivilege	5476	powershell.exe
Token: SeTakeOwnershipPrivilege	5476	powershell.exe
Token: SeLoadDriverPrivilege	5476	powershell.exe
Token: SeSystemProfilePrivilege	5476	powershell.exe
Token: SeSystemtimePrivilege	5476	powershell.exe
Token: SeProfSingleProcessPrivilege	5476	powershell.exe
Token: SeIncBasePriorityPrivilege	5476	powershell.exe
Token: SeCreatePagefilePrivilege	5476	powershell.exe
Token: SeBackupPrivilege	5476	powershell.exe
Token: SeRestorePrivilege	5476	powershell.exe
Token: SeShutdownPrivilege	5476	powershell.exe
Token: SeDebugPrivilege	5476	powershell.exe
Token: SeSystemEnvironmentPrivilege	5476	powershell.exe
Token: SeRemoteShutdownPrivilege	5476	powershell.exe
Token: SeUndockPrivilege	5476	powershell.exe
Token: SeManageVolumePrivilege	5476	powershell.exe
Token: 33	5476	powershell.exe
Token: 34	5476	powershell.exe
Token: 35	5476	powershell.exe
Token: 36	5476	powershell.exe

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 4624 wrote to memory of 2484	4624	OneDriveUpdate.exe	88
PID 4624 wrote to memory of 5152	4624	OneDriveUpdate.exe	90
PID 4624 wrote to memory of 6092	4624	OneDriveUpdate.exe	92
PID 4624 wrote to memory of 3048	4624	OneDriveUpdate.exe	94
PID 4624 wrote to memory of 5476	4624	OneDriveUpdate.exe	96
PID 4624 wrote to memory of 5548	4624	OneDriveUpdate.exe	103
PID 4624 wrote to memory of 5516	4624	OneDriveUpdate.exe	105
PID 4624 wrote to memory of 4160	4624	OneDriveUpdate.exe	107
PID 4624 wrote to memory of 4564	4624	OneDriveUpdate.exe	108
PID 4624 wrote to memory of 4796	4624	OneDriveUpdate.exe	109

Views/modifies file attributes 1 TTPs 2 IoCs

defense_evasion

Hidden Files and Directories

T1564.001

pid	Process
2484	attrib.exe
5516	attrib.exe

C:\Users\Admin\AppData\Local\Temp\OneDriveUpdate.exe
"C:\Users\Admin\AppData\Local\Temp\OneDriveUpdate.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:4624
- C:\Windows\system32\attrib.exe
  "attrib" +H C:\Users\Admin\AppData\Roaming\Microsoft\Windows\SendTo\OneDriveUpdate.exe
  2⤵
  - Views/modifies file attributes
  PID:2484
- C:\Windows\system32\reg.exe
  "reg" add HKCU\Software\Microsoft\Windows\CurrentVersion\Run /v WindowsHealthMonitor /t REG_SZ /d C:\Users\Admin\AppData\Roaming\Microsoft\Windows\SendTo\OneDriveUpdate.exe /f
  2⤵
  - Adds Run key to start application
  - Modifies registry key
  PID:5152
- C:\Windows\system32\reg.exe
  "reg" add HKCU\Software\Microsoft\Windows\CurrentVersion\Run /v SysHelper /t REG_SZ /d C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Themes\ThemeSync.exe /f
  2⤵
  - Adds Run key to start application
  - Modifies registry key
  PID:6092
- C:\Windows\system32\reg.exe
  "reg" add HKCU\Software\Microsoft\Windows\CurrentVersion\RunOnce /v Setup /t REG_SZ /d C:\Users\Admin\AppData\Roaming\Microsoft\Windows\SendTo\OneDriveUpdate.exe /f
  2⤵
  - Adds Run key to start application
  - Modifies registry key
  PID:3048
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "powershell" -WindowStyle Hidden -Command "$action = New-ScheduledTaskAction -Execute 'C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\Windows\\SendTo\\OneDriveUpdate.exe'; $trigger = New-ScheduledTaskTrigger -AtLogon; $settings = New-ScheduledTaskSettingsSet -Hidden -AllowStartIfOnBatteries -DontStopIfGoingOnBatteries; Register-ScheduledTask -TaskName 'OneDriveStandalone' -Action $action -Trigger $trigger -Settings $settings -Force"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:5476
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "powershell" -WindowStyle Hidden -Command "$s = (New-Object -COM WScript.Shell).CreateShortcut('C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\Windows\\Start Menu\\Programs\\Startup\\OneDrive.lnk'); $s.TargetPath = 'C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\Windows\\SendTo\\OneDriveUpdate.exe'; $s.WorkingDirectory = 'C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\Windows\\SendTo'; $s.WindowStyle = 7; $s.Save()"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Drops startup file
  - Suspicious behavior: EnumeratesProcesses
  PID:5548
- C:\Windows\system32\attrib.exe
  "attrib" +H C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Themes\syshelper.vbs
  2⤵
  - Views/modifies file attributes
  PID:5516
- C:\Windows\system32\wscript.exe
  "wscript.exe" //nologo //b C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Themes\syshelper.vbs
  2⤵
  - Executes a VBScript file via the Windows Script Host.
  PID:4160
- C:\Users\Admin\AppData\Roaming\Microsoft\Windows\SendTo\OneDriveUpdate.exe
  "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\SendTo\OneDriveUpdate.exe"
  2⤵
  - Executes dropped EXE
  PID:4564
- C:\Users\Admin\AppData\Roaming\Microsoft\Windows\SendTo\OneDriveUpdate.exe
  "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\SendTo\OneDriveUpdate.exe"
  2⤵
  - Executes dropped EXE
  PID:4796

C:\Users\Admin\AppData\Roaming\Microsoft\Windows\SendTo\OneDriveUpdate.exe
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\SendTo\OneDriveUpdate.exe
1⤵
- Executes dropped EXE
PID:1504

Network

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

PowerShell

T1059.001

Visual Basic

T1059.005

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Hide Artifacts

T1564

Hidden Files and Directories

T1564.001

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

StartupProfileData-NonInteractive

Path C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
Size 1KB
SHA256 d28ef187840dcd1fe0a8a757ef9cd326023bec38b39ef1338f91d508d55dcf28
MD5 acbc65123954839a819fa2495d239bf7
SHA1 063cff64444a6e3b4be1445b4cecb477e4d6ae47
SHA512 af07d3f6dcf1779bcc864aabe9e08563b20b8df8238df7bb08a5fe3b4e40d10f2e2a4442a042fe5d7a320e3b8195799ecc885549faa8babb5909eb32271e7b91
TLSH
T170216833B3DD8615CC9A413A10CDAC1036B6C7DB40DECFAB7B84E655A43F699CE61160
MD5 SHA1 SHA512 TLSH

Submit Download

__PSScriptPolicyTest_u2vit3hv.z2x.ps1

Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_u2vit3hv.z2x.ps1
Size 60B
SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
MD5 d17fe0a3f47be24a6453e9ef58c94641
SHA1 6ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA512 5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
TLSH
T177A02228CC303B200020C0080A000002C00B800C080C8C0220000A00B20B820002F080
MD5 SHA1 SHA512 TLSH

Submit Download

OneDriveUpdate.exe

Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\SendTo\OneDriveUpdate.exe
Size 351KB
SHA256 f4a9bfa61327da14613ff3f55d82117b7c2960e406533cd9edcef933a1f683b7
MD5 f67439047dc6a856b33055707b564e34
SHA1 060f7dffa612965013ceaf78116193edf0aa4713
SHA512 a69a3326192953a010e1ea17326e3a040bb2767a4f765387b04c72a23f7f00cc80f5b183b856f15fd97459c02589b0d7c6717f9400c3e9a3e3615699ab795e9b
SSDEEP 6144:MSYuLs6wLNg+GceFU8/+i/jFLjXg02cDqLOX5HQS2Y0fji2:MATwZnTGdlg+x5HQK0
TLSH
T13A745C21FB955CF9D1A6C03482554A629A737CCB0B21AAFF23D442352F2AAF56F3C714
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

syshelper.vbs

Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Themes\syshelper.vbs
Size 647B
SHA256 683299efb20c6d035b79528fc3b65b4ead66e9bcf4c9dccb3c720ee926860341
MD5 f34cf97a62252c9fbff74f43d05cb2d8
SHA1 647490617850310f50ca9ba54640a70209f1c511
SHA512 b99321322d1e82026bd52a676c2e5e62a177b56220210ad49c846a5164123122de3665ab517ba72c8caefaf5f0913f5fb907e2c9cd22c760b0f79e118fbe3e7f
TLSH
T146F0A212DC19CB74D466255A23F3950EA5D14346789E6515FE4CC5CC7FC0F55D4880E3
MD5 SHA1 SHA512 TLSH

Submit Download

memory/5476-14-0x00007FFB0B960000-0x00007FFB0C304000-memory.dmp

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memory/5476-6-0x00007FFB0B960000-0x00007FFB0C304000-memory.dmp

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memory/5476-9-0x00007FFB0B960000-0x00007FFB0C304000-memory.dmp

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memory/5476-8-0x00007FFB0B960000-0x00007FFB0C304000-memory.dmp

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memory/5476-10-0x00007FFB0B960000-0x00007FFB0C304000-memory.dmp

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memory/5476-11-0x00007FFB0B960000-0x00007FFB0C304000-memory.dmp

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memory/5476-12-0x00007FFB0B960000-0x00007FFB0C304000-memory.dmp

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memory/5476-13-0x00007FFB0B960000-0x00007FFB0C304000-memory.dmp

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memory/5476-0-0x00007FFB0BAEF000-0x00007FFB0BAF0000-memory.dmp

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memory/5476-18-0x000001CF699C0000-0x000001CF69A72000-memory.dmp

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memory/5476-17-0x000001CF69760000-0x000001CF6977E000-memory.dmp

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memory/5476-7-0x00007FFB0B960000-0x00007FFB0C304000-memory.dmp

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memory/5476-19-0x000001CF694E0000-0x000001CF694EA000-memory.dmp

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memory/5476-21-0x000001CF69CD0000-0x000001CF69CEE000-memory.dmp

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memory/5476-22-0x00007FFB0B960000-0x00007FFB0C304000-memory.dmp

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memory/5476-23-0x00007FFB0B960000-0x00007FFB0C304000-memory.dmp

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memory/5476-24-0x00007FFB0B960000-0x00007FFB0C304000-memory.dmp

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memory/5476-26-0x00007FFB0B960000-0x00007FFB0C304000-memory.dmp

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memory/5476-5-0x00007FFB0B960000-0x00007FFB0C304000-memory.dmp

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memory/5476-4-0x000001CF694B0000-0x000001CF694D2000-memory.dmp

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memory/5476-1-0x00007FFB0B960000-0x00007FFB0C304000-memory.dmp

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