Analysis
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max time kernel
92s -
max time network
126s -
platform
windows10-2004_x64 -
resource
win10v2004-20250217-en -
resource tags
arch:x64arch:x86image:win10v2004-20250217-enlocale:en-usos:windows10-2004-x64system -
submitted
19-02-2025 17:06
Behavioral task
behavioral1
Sample
loader.exe
Resource
win7-20250207-en
windows7-x64
21 signatures
150 seconds
Behavioral task
behavioral2
Sample
loader.exe
Resource
win10v2004-20250217-en
windows10-2004-x64
24 signatures
150 seconds
General
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Target
loader.exe
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Size
27KB
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MD5
1dea80c3acd337a732a41b1ef0a655c9
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SHA1
0c183db452f00bd5282de8c589b5ca39ff671dd6
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SHA256
a19228e0bf1b1aa215e84f0381b6f4ec16e4dc5831089600678a3d6c2eed0936
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SHA512
f42e8c34379afc24ac9dd3d87b6284571e60932d8dfe6b088cf30dd655416a894ad03e95c63b538d55fb20d082b9a3c0024cd4f8740665e13c8be7eef3070f62
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SSDEEP
384:OtWZPzzxAm1vmSZUoGnpjCG+N/y81lxOy5o91ns3J82v4:T7zxAmXZUoGwG+0Kho9VQ82A
Malware Config
Signatures
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Chaos
Ransomware family first seen in June 2021.
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Chaos Ransomware 2 IoCs
resource yara_rule behavioral2/memory/3052-1-0x0000000000E30000-0x0000000000E3E000-memory.dmp family_chaos behavioral2/files/0x000400000001e5ba-7.dat family_chaos -
Chaos family
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Deletes shadow copies 3 TTPs
Ransomware often targets backup files to inhibit system recovery.
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Modifies boot configuration data using bcdedit 1 TTPs 2 IoCs
pid Process 5080 bcdedit.exe 728 bcdedit.exe -
pid Process 3436 wbadmin.exe -
Disables Task Manager via registry modification
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Checks computer location settings 2 TTPs 2 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-22591836-1183090055-1220658180-1000\Control Panel\International\Geo\Nation loader.exe Key value queried \REGISTRY\USER\S-1-5-21-22591836-1183090055-1220658180-1000\Control Panel\International\Geo\Nation svchost.exe -
Drops startup file 2 IoCs
description ioc Process File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\read_it.txt svchost.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\desktop.ini svchost.exe -
Executes dropped EXE 1 IoCs
pid Process 4192 svchost.exe -
Reads user/profile data of web browsers 3 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
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Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-22591836-1183090055-1220658180-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\UpdateTask = "C:\\Users\\Admin\\AppData\\Roaming\\svchost.exe" svchost.exe -
Drops desktop.ini file(s) 64 IoCs
description ioc Process File opened for modification C:\Users\Admin\Searches\desktop.ini svchost.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Internet Explorer\Quick Launch\User Pinned\TaskBar\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Documents\desktop.ini svchost.exe File opened for modification C:\Users\Admin\AppData\Local\Microsoft\Windows\WinX\Group3\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Downloads\desktop.ini svchost.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Accessibility\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Desktop\desktop.ini svchost.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Pictures\desktop.ini svchost.exe File opened for modification C:\Users\Default\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\desktop.ini svchost.exe File opened for modification C:\Users\Public\desktop.ini svchost.exe File opened for modification C:\Users\All Users\Microsoft\Windows\Start Menu\Programs\Maintenance\Desktop.ini svchost.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\desktop.ini svchost.exe File opened for modification C:\Users\Public\AccountPictures\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Pictures\Saved Pictures\desktop.ini svchost.exe File opened for modification F:\$RECYCLE.BIN\S-1-5-21-22591836-1183090055-1220658180-1000\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Contacts\desktop.ini svchost.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\desktop.ini svchost.exe File opened for modification C:\Users\Default\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Maintenance\Desktop.ini svchost.exe File opened for modification C:\Users\Public\Music\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Saved Games\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Videos\desktop.ini svchost.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Maintenance\Desktop.ini svchost.exe File opened for modification C:\Users\Admin\Pictures\Camera Roll\desktop.ini svchost.exe File opened for modification C:\Users\Default\AppData\Local\Microsoft\Windows\WinX\Group1\desktop.ini svchost.exe File opened for modification C:\Users\Default\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\System Tools\Desktop.ini svchost.exe File opened for modification C:\Users\Public\Libraries\desktop.ini svchost.exe File opened for modification C:\Users\All Users\Microsoft\Windows\Start Menu\Programs\desktop.ini svchost.exe File opened for modification C:\Users\Admin\AppData\Local\Microsoft\Windows\Burn\Burn1\desktop.ini svchost.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Accessories\desktop.ini svchost.exe File opened for modification C:\Users\Admin\AppData\Local\Microsoft\Windows\WinX\Group2\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Music\desktop.ini svchost.exe File opened for modification C:\Users\All Users\Microsoft\Windows\Start Menu\Programs\StartUp\desktop.ini svchost.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\SendTo\desktop.ini svchost.exe File opened for modification C:\Users\All Users\Microsoft\Windows\Start Menu\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Favorites\desktop.ini svchost.exe File opened for modification C:\Users\Default\AppData\Local\Microsoft\Windows\WinX\Group2\desktop.ini svchost.exe File opened for modification C:\Users\Default\AppData\Local\Microsoft\Windows\WinX\Group3\desktop.ini svchost.exe File opened for modification C:\Users\All Users\Microsoft\Windows\Start Menu\Programs\Accessories\desktop.ini svchost.exe File opened for modification C:\Users\All Users\Microsoft\Windows\Start Menu\Programs\Windows PowerShell\desktop.ini svchost.exe File opened for modification C:\Users\Admin\AppData\Local\Microsoft\Windows\Burn\Burn2\desktop.ini svchost.exe File opened for modification C:\Users\Admin\3D Objects\desktop.ini svchost.exe File opened for modification C:\Users\Default\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Accessibility\desktop.ini svchost.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Internet Explorer\Quick Launch\desktop.ini svchost.exe File opened for modification C:\Users\All Users\Microsoft\Windows\Start Menu\Programs\System Tools\desktop.ini svchost.exe File opened for modification C:\Users\Admin\AppData\Local\Microsoft\Windows\History\desktop.ini svchost.exe File opened for modification C:\Users\Admin\AppData\Local\Microsoft\Windows\WinX\Group1\desktop.ini svchost.exe File opened for modification C:\Users\Admin\OneDrive\desktop.ini svchost.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\System Tools\Desktop.ini svchost.exe File opened for modification C:\Users\Default\AppData\Roaming\Microsoft\Internet Explorer\Quick Launch\desktop.ini svchost.exe File opened for modification C:\Users\All Users\Microsoft\Windows\Start Menu\Programs\Accessibility\desktop.ini svchost.exe File opened for modification C:\Users\All Users\Microsoft\Windows\Start Menu\Programs\Accessories\System Tools\desktop.ini svchost.exe File opened for modification C:\Users\All Users\Microsoft\Windows\Start Menu\Programs\Administrative Tools\desktop.ini svchost.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\AccountPictures\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Favorites\Links\desktop.ini svchost.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Administrative Tools\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Links\desktop.ini svchost.exe File opened for modification C:\Users\Default\AppData\Roaming\Microsoft\Windows\SendTo\desktop.ini svchost.exe File opened for modification C:\Users\Public\Desktop\desktop.ini svchost.exe File opened for modification C:\Users\Admin\AppData\Local\Microsoft\Windows\Application Shortcuts\desktop.ini svchost.exe File opened for modification C:\Users\Default\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Accessories\desktop.ini svchost.exe File opened for modification C:\Users\Public\Documents\desktop.ini svchost.exe File opened for modification C:\Users\Public\Downloads\desktop.ini svchost.exe File opened for modification C:\Users\Public\Pictures\desktop.ini svchost.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Checks SCSI registry key(s) 3 TTPs 4 IoCs
SCSI information is often read in order to detect sandboxing environments.
description ioc Process Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\Disk&Ven_WDC&Prod_WDS100T2B0A\4&215468a5&0&000000\FriendlyName vds.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\CDROM&VEN_QEMU&PROD_QEMU_DVD-ROM\4&215468A5&0&010000 vds.exe Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\CdRom&Ven_QEMU&Prod_QEMU_DVD-ROM\4&215468a5&0&010000\FriendlyName vds.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\DISK&VEN_WDC&PROD_WDS100T2B0A\4&215468A5&0&000000 vds.exe -
Interacts with shadow copies 3 TTPs 1 IoCs
Shadow copies are often targeted by ransomware to inhibit system recovery.
pid Process 5112 vssadmin.exe -
Modifies registry class 1 IoCs
description ioc Process Key created \REGISTRY\USER\S-1-5-21-22591836-1183090055-1220658180-1000_Classes\Local Settings svchost.exe -
Opens file in notepad (likely ransom note) 1 IoCs
pid Process 3396 NOTEPAD.EXE -
Suspicious behavior: AddClipboardFormatListener 2 IoCs
pid Process 3052 loader.exe 4192 svchost.exe -
Suspicious behavior: EnumeratesProcesses 45 IoCs
pid Process 3052 loader.exe 3052 loader.exe 3052 loader.exe 3052 loader.exe 3052 loader.exe 3052 loader.exe 3052 loader.exe 3052 loader.exe 3052 loader.exe 3052 loader.exe 3052 loader.exe 3052 loader.exe 3052 loader.exe 3052 loader.exe 3052 loader.exe 3052 loader.exe 3052 loader.exe 3052 loader.exe 3052 loader.exe 3052 loader.exe 3052 loader.exe 3052 loader.exe 4192 svchost.exe 4192 svchost.exe 4192 svchost.exe 4192 svchost.exe 4192 svchost.exe 4192 svchost.exe 4192 svchost.exe 4192 svchost.exe 4192 svchost.exe 4192 svchost.exe 4192 svchost.exe 4192 svchost.exe 4192 svchost.exe 4192 svchost.exe 4192 svchost.exe 4192 svchost.exe 4192 svchost.exe 4192 svchost.exe 4192 svchost.exe 4192 svchost.exe 4192 svchost.exe 4192 svchost.exe 4192 svchost.exe -
Suspicious use of AdjustPrivilegeToken 50 IoCs
description pid Process Token: SeDebugPrivilege 3052 loader.exe Token: SeDebugPrivilege 4192 svchost.exe Token: SeBackupPrivilege 5040 vssvc.exe Token: SeRestorePrivilege 5040 vssvc.exe Token: SeAuditPrivilege 5040 vssvc.exe Token: SeIncreaseQuotaPrivilege 4072 WMIC.exe Token: SeSecurityPrivilege 4072 WMIC.exe Token: SeTakeOwnershipPrivilege 4072 WMIC.exe Token: SeLoadDriverPrivilege 4072 WMIC.exe Token: SeSystemProfilePrivilege 4072 WMIC.exe Token: SeSystemtimePrivilege 4072 WMIC.exe Token: SeProfSingleProcessPrivilege 4072 WMIC.exe Token: SeIncBasePriorityPrivilege 4072 WMIC.exe Token: SeCreatePagefilePrivilege 4072 WMIC.exe Token: SeBackupPrivilege 4072 WMIC.exe Token: SeRestorePrivilege 4072 WMIC.exe Token: SeShutdownPrivilege 4072 WMIC.exe Token: SeDebugPrivilege 4072 WMIC.exe Token: SeSystemEnvironmentPrivilege 4072 WMIC.exe Token: SeRemoteShutdownPrivilege 4072 WMIC.exe Token: SeUndockPrivilege 4072 WMIC.exe Token: SeManageVolumePrivilege 4072 WMIC.exe Token: 33 4072 WMIC.exe Token: 34 4072 WMIC.exe Token: 35 4072 WMIC.exe Token: 36 4072 WMIC.exe Token: SeIncreaseQuotaPrivilege 4072 WMIC.exe Token: SeSecurityPrivilege 4072 WMIC.exe Token: SeTakeOwnershipPrivilege 4072 WMIC.exe Token: SeLoadDriverPrivilege 4072 WMIC.exe Token: SeSystemProfilePrivilege 4072 WMIC.exe Token: SeSystemtimePrivilege 4072 WMIC.exe Token: SeProfSingleProcessPrivilege 4072 WMIC.exe Token: SeIncBasePriorityPrivilege 4072 WMIC.exe Token: SeCreatePagefilePrivilege 4072 WMIC.exe Token: SeBackupPrivilege 4072 WMIC.exe Token: SeRestorePrivilege 4072 WMIC.exe Token: SeShutdownPrivilege 4072 WMIC.exe Token: SeDebugPrivilege 4072 WMIC.exe Token: SeSystemEnvironmentPrivilege 4072 WMIC.exe Token: SeRemoteShutdownPrivilege 4072 WMIC.exe Token: SeUndockPrivilege 4072 WMIC.exe Token: SeManageVolumePrivilege 4072 WMIC.exe Token: 33 4072 WMIC.exe Token: 34 4072 WMIC.exe Token: 35 4072 WMIC.exe Token: 36 4072 WMIC.exe Token: SeBackupPrivilege 1068 wbengine.exe Token: SeRestorePrivilege 1068 wbengine.exe Token: SeSecurityPrivilege 1068 wbengine.exe -
Suspicious use of WriteProcessMemory 20 IoCs
description pid Process procid_target PID 3052 wrote to memory of 4192 3052 loader.exe 88 PID 3052 wrote to memory of 4192 3052 loader.exe 88 PID 4192 wrote to memory of 64 4192 svchost.exe 89 PID 4192 wrote to memory of 64 4192 svchost.exe 89 PID 64 wrote to memory of 5112 64 cmd.exe 91 PID 64 wrote to memory of 5112 64 cmd.exe 91 PID 64 wrote to memory of 4072 64 cmd.exe 94 PID 64 wrote to memory of 4072 64 cmd.exe 94 PID 4192 wrote to memory of 4648 4192 svchost.exe 96 PID 4192 wrote to memory of 4648 4192 svchost.exe 96 PID 4648 wrote to memory of 5080 4648 cmd.exe 98 PID 4648 wrote to memory of 5080 4648 cmd.exe 98 PID 4648 wrote to memory of 728 4648 cmd.exe 99 PID 4648 wrote to memory of 728 4648 cmd.exe 99 PID 4192 wrote to memory of 4992 4192 svchost.exe 100 PID 4192 wrote to memory of 4992 4192 svchost.exe 100 PID 4992 wrote to memory of 3436 4992 cmd.exe 102 PID 4992 wrote to memory of 3436 4992 cmd.exe 102 PID 4192 wrote to memory of 3396 4192 svchost.exe 107 PID 4192 wrote to memory of 3396 4192 svchost.exe 107 -
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.
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Uses Volume Shadow Copy service COM API
The Volume Shadow Copy service is used to manage backups/snapshots.
Processes
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C:\Users\Admin\AppData\Local\Temp\loader.exe"C:\Users\Admin\AppData\Local\Temp\loader.exe"1⤵
- Checks computer location settings
- Suspicious behavior: AddClipboardFormatListener
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3052 -
C:\Users\Admin\AppData\Roaming\svchost.exe"C:\Users\Admin\AppData\Roaming\svchost.exe"2⤵
- Checks computer location settings
- Drops startup file
- Executes dropped EXE
- Adds Run key to start application
- Drops desktop.ini file(s)
- Modifies registry class
- Suspicious behavior: AddClipboardFormatListener
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4192 -
C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" /C vssadmin delete shadows /all /quiet & wmic shadowcopy delete3⤵
- Suspicious use of WriteProcessMemory
PID:64 -
C:\Windows\system32\vssadmin.exevssadmin delete shadows /all /quiet4⤵
- Interacts with shadow copies
PID:5112
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C:\Windows\System32\Wbem\WMIC.exewmic shadowcopy delete4⤵
- Suspicious use of AdjustPrivilegeToken
PID:4072
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C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" /C bcdedit /set {default} bootstatuspolicy ignoreallfailures & bcdedit /set {default} recoveryenabled no3⤵
- Suspicious use of WriteProcessMemory
PID:4648 -
C:\Windows\system32\bcdedit.exebcdedit /set {default} bootstatuspolicy ignoreallfailures4⤵
- Modifies boot configuration data using bcdedit
PID:5080
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C:\Windows\system32\bcdedit.exebcdedit /set {default} recoveryenabled no4⤵
- Modifies boot configuration data using bcdedit
PID:728
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C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" /C wbadmin delete catalog -quiet3⤵
- Suspicious use of WriteProcessMemory
PID:4992 -
C:\Windows\system32\wbadmin.exewbadmin delete catalog -quiet4⤵
- Deletes backup catalog
PID:3436
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C:\Windows\system32\NOTEPAD.EXE"C:\Windows\system32\NOTEPAD.EXE" C:\Users\Admin\AppData\Roaming\read_it.txt3⤵
- Opens file in notepad (likely ransom note)
PID:3396
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C:\Windows\system32\vssvc.exeC:\Windows\system32\vssvc.exe1⤵
- Suspicious use of AdjustPrivilegeToken
PID:5040
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C:\Windows\system32\wbengine.exe"C:\Windows\system32\wbengine.exe"1⤵
- Suspicious use of AdjustPrivilegeToken
PID:1068
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C:\Windows\System32\vdsldr.exeC:\Windows\System32\vdsldr.exe -Embedding1⤵PID:5064
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C:\Windows\System32\vds.exeC:\Windows\System32\vds.exe1⤵
- Checks SCSI registry key(s)
PID:4568
Network
MITRE ATT&CK Enterprise v15
Privilege Escalation
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Defense Evasion
Direct Volume Access
1Indicator Removal
3File Deletion
3Modify Registry
1Credential Access
Credentials from Password Stores
1Credentials from Web Browsers
1Unsecured Credentials
1Credentials In Files
1Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
1KB
MD5baf55b95da4a601229647f25dad12878
SHA1abc16954ebfd213733c4493fc1910164d825cac8
SHA256ee954c5d8156fd8890e582c716e5758ed9b33721258f10e758bdc31ccbcb1924
SHA51224f502fedb1a305d0d7b08857ffc1db9b2359ff34e06d5748ecc84e35c985f29a20d9f0a533bea32d234ab37097ec0481620c63b14ac89b280e75e14d19fd545
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Filesize
384B
MD54527a1a6c828a73f063e103e63d697cd
SHA126c8f133fe0b6d033aac19a901e9198d0ff18352
SHA25692eccda02248ea9ac84249ca833268534d135e99c4ad33f0e12c930a8c650b59
SHA5127267a891748dc00453c2efa96d28ad4a3f860298cddc25ba8a765322db57cdf141b572a97d2e8bdb9442cae77e5259bebf5f8471210d54c645037a3d28722f4a
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Filesize
27KB
MD51dea80c3acd337a732a41b1ef0a655c9
SHA10c183db452f00bd5282de8c589b5ca39ff671dd6
SHA256a19228e0bf1b1aa215e84f0381b6f4ec16e4dc5831089600678a3d6c2eed0936
SHA512f42e8c34379afc24ac9dd3d87b6284571e60932d8dfe6b088cf30dd655416a894ad03e95c63b538d55fb20d082b9a3c0024cd4f8740665e13c8be7eef3070f62
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Filesize
1B
MD5d1457b72c3fb323a2671125aef3eab5d
SHA15bab61eb53176449e25c2c82f172b82cb13ffb9d
SHA2568a8de823d5ed3e12746a62ef169bcf372be0ca44f0a1236abc35df05d96928e1
SHA512ca63c07ad35d8c9fb0c92d6146759b122d4ec5d3f67ebe2f30ddb69f9e6c9fd3bf31a5e408b08f1d4d9cd68120cced9e57f010bef3cde97653fed5470da7d1a0