Analysis
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max time kernel
975s -
max time network
1081s -
platform
windows11-21h2_x64 -
resource
win11-20250207-en -
resource tags
arch:x64arch:x86image:win11-20250207-enlocale:en-usos:windows11-21h2-x64system -
submitted
09-02-2025 23:49
Behavioral task
behavioral1
Sample
malware ransomware.exe
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
malware ransomware.exe
Resource
win10v2004-20250207-en
Behavioral task
behavioral3
Sample
malware ransomware.exe
Resource
win10ltsc2021-20250207-en
Behavioral task
behavioral4
Sample
malware ransomware.exe
Resource
win11-20250207-en
General
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Target
malware ransomware.exe
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Size
23KB
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MD5
47750b58657debaa542dc362b2b475d2
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SHA1
4a69be06f72fc4cfab62914ef3f5ee7a6ad98500
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SHA256
8ccace3ee82c7a575a2256a35a74e52981d34a92f979fac94cc5e8406260e9f5
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SHA512
078b5716bb55171ba8af69246caca0951e8c2193611516210b703d6fd5500aef35c5a02f8e059704102ac903fddad2e9de08014174856bc418a6f375856af0de
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SSDEEP
384:h3Mg/bqo2Yag2bu01Skp7DPJIXrTyKJ0r91Cibb5SeZ:Dqo2BHuOVp7DPJcyu0r9pbb4eZ
Malware Config
Extracted
C:\Users\Admin\Documents\read_it.txt
chaos
Signatures
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Chaos
Ransomware family first seen in June 2021.
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Chaos Ransomware 2 IoCs
resource yara_rule behavioral4/memory/2156-1-0x0000000000250000-0x000000000025C000-memory.dmp family_chaos behavioral4/files/0x001c00000002ae2c-6.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 4672 bcdedit.exe 672 bcdedit.exe -
pid Process 3900 wbadmin.exe -
Downloads MZ/PE file 4 IoCs
flow pid Process 7 3384 Process not Found 17 3384 Process not Found 16 4168 Process not Found 18 4168 Process not Found -
Drops startup file 3 IoCs
description ioc Process File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\svchost.url svchost.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\desktop.ini svchost.exe File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\read_it.txt svchost.exe -
Executes dropped EXE 1 IoCs
pid Process 3408 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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Drops desktop.ini file(s) 34 IoCs
description ioc Process File opened for modification C:\Users\Admin\Saved Games\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\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\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Accessories\Desktop.ini svchost.exe File opened for modification C:\Users\Public\Pictures\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Videos\desktop.ini svchost.exe File opened for modification C:\Users\Public\Videos\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\Internet Explorer\Quick Launch\User Pinned\TaskBar\desktop.ini svchost.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Libraries\desktop.ini svchost.exe File opened for modification C:\Users\Public\Desktop\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Pictures\Camera Roll\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\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\System Tools\desktop.ini svchost.exe File opened for modification C:\Users\Public\Music\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Links\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Music\desktop.ini svchost.exe File opened for modification C:\Users\Admin\OneDrive\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Searches\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\AppData\Roaming\Microsoft\Windows\SendTo\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\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Administrative Tools\desktop.ini svchost.exe File opened for modification F:\$RECYCLE.BIN\S-1-5-21-2969674418-3952479498-2422112087-1000\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Documents\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Pictures\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Pictures\Saved Pictures\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\Public\Documents\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Contacts\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Downloads\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\Accessibility\desktop.ini svchost.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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System Location Discovery: System Language Discovery 1 TTPs 1 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language MicrosoftEdgeUpdate.exe -
System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 1 IoCs
Adversaries may check for Internet connectivity on compromised systems.
pid Process 5116 MicrosoftEdgeUpdate.exe -
Checks SCSI registry key(s) 3 TTPs 4 IoCs
SCSI information is often read in order to detect sandboxing environments.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\DISK&VEN_WDC&PROD_WDS100T2B0A\4&215468A5&0&000000 vds.exe 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 -
Interacts with shadow copies 3 TTPs 1 IoCs
Shadow copies are often targeted by ransomware to inhibit system recovery.
pid Process 648 vssadmin.exe -
Modifies registry class 1 IoCs
description ioc Process Key created \REGISTRY\USER\S-1-5-21-2969674418-3952479498-2422112087-1000_Classes\Local Settings svchost.exe -
Opens file in notepad (likely ransom note) 1 IoCs
pid Process 3932 NOTEPAD.EXE -
Suspicious behavior: AddClipboardFormatListener 1 IoCs
pid Process 3408 svchost.exe -
Suspicious behavior: EnumeratesProcesses 41 IoCs
pid Process 2156 malware ransomware.exe 2156 malware ransomware.exe 2156 malware ransomware.exe 2156 malware ransomware.exe 2156 malware ransomware.exe 2156 malware ransomware.exe 2156 malware ransomware.exe 2156 malware ransomware.exe 2156 malware ransomware.exe 2156 malware ransomware.exe 2156 malware ransomware.exe 2156 malware ransomware.exe 2156 malware ransomware.exe 2156 malware ransomware.exe 2156 malware ransomware.exe 2156 malware ransomware.exe 2156 malware ransomware.exe 2156 malware ransomware.exe 2156 malware ransomware.exe 2156 malware ransomware.exe 2156 malware ransomware.exe 3408 svchost.exe 3408 svchost.exe 3408 svchost.exe 3408 svchost.exe 3408 svchost.exe 3408 svchost.exe 3408 svchost.exe 3408 svchost.exe 3408 svchost.exe 3408 svchost.exe 3408 svchost.exe 3408 svchost.exe 3408 svchost.exe 3408 svchost.exe 3408 svchost.exe 3408 svchost.exe 3408 svchost.exe 3408 svchost.exe 3408 svchost.exe 3408 svchost.exe -
Suspicious use of AdjustPrivilegeToken 50 IoCs
description pid Process Token: SeDebugPrivilege 2156 malware ransomware.exe Token: SeDebugPrivilege 3408 svchost.exe Token: SeBackupPrivilege 2308 vssvc.exe Token: SeRestorePrivilege 2308 vssvc.exe Token: SeAuditPrivilege 2308 vssvc.exe Token: SeIncreaseQuotaPrivilege 3524 WMIC.exe Token: SeSecurityPrivilege 3524 WMIC.exe Token: SeTakeOwnershipPrivilege 3524 WMIC.exe Token: SeLoadDriverPrivilege 3524 WMIC.exe Token: SeSystemProfilePrivilege 3524 WMIC.exe Token: SeSystemtimePrivilege 3524 WMIC.exe Token: SeProfSingleProcessPrivilege 3524 WMIC.exe Token: SeIncBasePriorityPrivilege 3524 WMIC.exe Token: SeCreatePagefilePrivilege 3524 WMIC.exe Token: SeBackupPrivilege 3524 WMIC.exe Token: SeRestorePrivilege 3524 WMIC.exe Token: SeShutdownPrivilege 3524 WMIC.exe Token: SeDebugPrivilege 3524 WMIC.exe Token: SeSystemEnvironmentPrivilege 3524 WMIC.exe Token: SeRemoteShutdownPrivilege 3524 WMIC.exe Token: SeUndockPrivilege 3524 WMIC.exe Token: SeManageVolumePrivilege 3524 WMIC.exe Token: 33 3524 WMIC.exe Token: 34 3524 WMIC.exe Token: 35 3524 WMIC.exe Token: 36 3524 WMIC.exe Token: SeIncreaseQuotaPrivilege 3524 WMIC.exe Token: SeSecurityPrivilege 3524 WMIC.exe Token: SeTakeOwnershipPrivilege 3524 WMIC.exe Token: SeLoadDriverPrivilege 3524 WMIC.exe Token: SeSystemProfilePrivilege 3524 WMIC.exe Token: SeSystemtimePrivilege 3524 WMIC.exe Token: SeProfSingleProcessPrivilege 3524 WMIC.exe Token: SeIncBasePriorityPrivilege 3524 WMIC.exe Token: SeCreatePagefilePrivilege 3524 WMIC.exe Token: SeBackupPrivilege 3524 WMIC.exe Token: SeRestorePrivilege 3524 WMIC.exe Token: SeShutdownPrivilege 3524 WMIC.exe Token: SeDebugPrivilege 3524 WMIC.exe Token: SeSystemEnvironmentPrivilege 3524 WMIC.exe Token: SeRemoteShutdownPrivilege 3524 WMIC.exe Token: SeUndockPrivilege 3524 WMIC.exe Token: SeManageVolumePrivilege 3524 WMIC.exe Token: 33 3524 WMIC.exe Token: 34 3524 WMIC.exe Token: 35 3524 WMIC.exe Token: 36 3524 WMIC.exe Token: SeBackupPrivilege 2712 wbengine.exe Token: SeRestorePrivilege 2712 wbengine.exe Token: SeSecurityPrivilege 2712 wbengine.exe -
Suspicious use of WriteProcessMemory 20 IoCs
description pid Process procid_target PID 2156 wrote to memory of 3408 2156 malware ransomware.exe 83 PID 2156 wrote to memory of 3408 2156 malware ransomware.exe 83 PID 3408 wrote to memory of 3136 3408 svchost.exe 85 PID 3408 wrote to memory of 3136 3408 svchost.exe 85 PID 3136 wrote to memory of 648 3136 cmd.exe 87 PID 3136 wrote to memory of 648 3136 cmd.exe 87 PID 3136 wrote to memory of 3524 3136 cmd.exe 90 PID 3136 wrote to memory of 3524 3136 cmd.exe 90 PID 3408 wrote to memory of 2172 3408 svchost.exe 92 PID 3408 wrote to memory of 2172 3408 svchost.exe 92 PID 2172 wrote to memory of 4672 2172 cmd.exe 94 PID 2172 wrote to memory of 4672 2172 cmd.exe 94 PID 2172 wrote to memory of 672 2172 cmd.exe 95 PID 2172 wrote to memory of 672 2172 cmd.exe 95 PID 3408 wrote to memory of 3768 3408 svchost.exe 96 PID 3408 wrote to memory of 3768 3408 svchost.exe 96 PID 3768 wrote to memory of 3900 3768 cmd.exe 98 PID 3768 wrote to memory of 3900 3768 cmd.exe 98 PID 3408 wrote to memory of 3932 3408 svchost.exe 102 PID 3408 wrote to memory of 3932 3408 svchost.exe 102 -
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\malware ransomware.exe"C:\Users\Admin\AppData\Local\Temp\malware ransomware.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2156 -
C:\Users\Admin\AppData\Roaming\svchost.exe"C:\Users\Admin\AppData\Roaming\svchost.exe"2⤵
- Drops startup file
- Executes dropped EXE
- Drops desktop.ini file(s)
- Modifies registry class
- Suspicious behavior: AddClipboardFormatListener
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3408 -
C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" /C vssadmin delete shadows /all /quiet & wmic shadowcopy delete3⤵
- Suspicious use of WriteProcessMemory
PID:3136 -
C:\Windows\system32\vssadmin.exevssadmin delete shadows /all /quiet4⤵
- Interacts with shadow copies
PID:648
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C:\Windows\System32\Wbem\WMIC.exewmic shadowcopy delete4⤵
- Suspicious use of AdjustPrivilegeToken
PID:3524
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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:2172 -
C:\Windows\system32\bcdedit.exebcdedit /set {default} bootstatuspolicy ignoreallfailures4⤵
- Modifies boot configuration data using bcdedit
PID:4672
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C:\Windows\system32\bcdedit.exebcdedit /set {default} recoveryenabled no4⤵
- Modifies boot configuration data using bcdedit
PID:672
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C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" /C wbadmin delete catalog -quiet3⤵
- Suspicious use of WriteProcessMemory
PID:3768 -
C:\Windows\system32\wbadmin.exewbadmin delete catalog -quiet4⤵
- Deletes backup catalog
PID:3900
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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:3932
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C:\Windows\system32\vssvc.exeC:\Windows\system32\vssvc.exe1⤵
- Suspicious use of AdjustPrivilegeToken
PID:2308
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C:\Windows\system32\wbengine.exe"C:\Windows\system32\wbengine.exe"1⤵
- Suspicious use of AdjustPrivilegeToken
PID:2712
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C:\Windows\System32\vdsldr.exeC:\Windows\System32\vdsldr.exe -Embedding1⤵PID:3272
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C:\Windows\System32\vds.exeC:\Windows\System32\vds.exe1⤵
- Checks SCSI registry key(s)
PID:1128
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C:\Program Files (x86)\Microsoft\EdgeUpdate\MicrosoftEdgeUpdate.exe"C:\Program Files (x86)\Microsoft\EdgeUpdate\MicrosoftEdgeUpdate.exe" /ping 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-PG9lbSBwcm9kdWN0X21hbnVmYWN0dXJlcj0iIiBwcm9kdWN0X25hbWU9IiIvPjxleHAgZXRhZz0iJnF1b3Q7RSt4YkF6Nlk2c1UxMjg5YlM2cWw0VlJMYmtqZkJVR1RNSnNqckhyNDRpST0mcXVvdDsiLz48YXBwIGFwcGlkPSJ7OEE2OUQzNDUtRDU2NC00NjNjLUFGRjEtQTY5RDlFNTMwRjk2fSIgdmVyc2lvbj0iMTIzLjAuNjMxMi4xMjMiIG5leHR2ZXJzaW9uPSIiIGxhbmc9ImVuIiBicmFuZD0iR0dMUyIgY2xpZW50PSIiIGluc3RhbGxhZ2U9IjIiIGluc3RhbGxkYXRldGltZT0iMTczODk1NTk3NyIgb29iZV9pbnN0YWxsX3RpbWU9IjEzMzgzNDI4NTM1NTkwMDAwMCI-PGV2ZW50IGV2ZW50dHlwZT0iMzEiIGV2ZW50cmVzdWx0PSIxIiBlcnJvcmNvZGU9IjAiIGV4dHJhY29kZTE9IjIxNzk4NjIiIHN5c3RlbV91cHRpbWVfdGlja3M9IjQ5NzYyMTExMDIiLz48L2FwcD48L3JlcXVlc3Q-1⤵
- System Location Discovery: System Language Discovery
- System Network Configuration Discovery: Internet Connection Discovery
PID:5116
Network
MITRE ATT&CK Enterprise v15
Credential 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
23KB
MD547750b58657debaa542dc362b2b475d2
SHA14a69be06f72fc4cfab62914ef3f5ee7a6ad98500
SHA2568ccace3ee82c7a575a2256a35a74e52981d34a92f979fac94cc5e8406260e9f5
SHA512078b5716bb55171ba8af69246caca0951e8c2193611516210b703d6fd5500aef35c5a02f8e059704102ac903fddad2e9de08014174856bc418a6f375856af0de
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Filesize
730B
MD528ad4453caca3da57691b85343ad6514
SHA14c1d668249a335069588317a62869ed0ca08c402
SHA256a5672ca772604963bc85a92c1c0bb5b4183a7f0985c29fce6a2852eee402e043
SHA512e925a3cffd5bab48b50935d60dbe9ae02ac08247c0eed8c8290b4ef702dc89ed76cc3599257ae74b12762d5cf308bd2a1eac3ed385bc5c47ee011525aebe8d7a