Analysis
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max time kernel
121s -
max time network
121s -
platform
windows7_x64 -
resource
win7-20240903-en -
resource tags
arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system -
submitted
30-01-2025 02:26
Behavioral task
behavioral1
Sample
2025-01-30_20e89f2cec1fb18b7ed5a9ae064d8a26_destroyer_wannacry.exe
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
2025-01-30_20e89f2cec1fb18b7ed5a9ae064d8a26_destroyer_wannacry.exe
Resource
win10v2004-20241007-en
General
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Target
2025-01-30_20e89f2cec1fb18b7ed5a9ae064d8a26_destroyer_wannacry.exe
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Size
27KB
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MD5
20e89f2cec1fb18b7ed5a9ae064d8a26
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SHA1
8a72cef92a281189181750ffac305facb35a8392
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SHA256
fb2e91ec3aba53e23c80245a65702a4239ec317561d4bc0aee3ee94ad384513e
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SHA512
32eadc91eb63b6529ec9e15bbbd17e07dd123ea09403aede7529fe12b10156a4169e30fa01bf242a86db43fc0f7aa9399d3b62b0d551f8d60ea1486b9fa908b4
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SSDEEP
384:HJtvVQozwhLS29FdZAcemwbZVozaZmO82h7VpsU1h:ptd/OLS29FHabDoshx31h
Malware Config
Extracted
C:\Users\Admin\AppData\Local\read_it.txt
Signatures
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Chaos
Ransomware family first seen in June 2021.
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Chaos Ransomware 3 IoCs
resource yara_rule behavioral1/memory/2528-1-0x0000000000010000-0x000000000001E000-memory.dmp family_chaos behavioral1/files/0x0008000000012102-6.dat family_chaos behavioral1/memory/2488-8-0x00000000008E0000-0x00000000008EE000-memory.dmp 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 1644 bcdedit.exe 2008 bcdedit.exe -
pid Process 2396 wbadmin.exe -
Disables Task Manager via registry modification
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Drops startup file 2 IoCs
description ioc Process 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 2488 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-1-5-21-312935884-697965778-3955649944-1000\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\Public\Music\Sample Music\desktop.ini svchost.exe File opened for modification C:\Users\All Users\Microsoft\Windows\Ringtones\desktop.ini svchost.exe File opened for modification C:\Users\Public\Recorded TV\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\Start Menu\Programs\Accessories\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\Default\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Maintenance\Desktop.ini svchost.exe File opened for modification C:\Users\Admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.IE5\CUMHXU73\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\Public\Videos\Sample Videos\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Pictures\desktop.ini svchost.exe File opened for modification F:\$RECYCLE.BIN\S-1-5-21-312935884-697965778-3955649944-1000\desktop.ini svchost.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Accessories\Accessibility\Desktop.ini svchost.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Accessories\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\AppData\Local\Microsoft\Windows\Temporary Internet Files\desktop.ini svchost.exe File opened for modification C:\Users\Admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.IE5\98Y29LGS\desktop.ini svchost.exe File opened for modification C:\Users\All Users\Microsoft\Windows\Start Menu\Programs\Accessories\Windows PowerShell\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Desktop\desktop.ini svchost.exe File opened for modification C:\Users\Public\desktop.ini svchost.exe File opened for modification C:\Users\Public\Documents\desktop.ini svchost.exe File opened for modification C:\Users\Public\Libraries\desktop.ini svchost.exe File opened for modification C:\Users\Admin\AppData\Local\Microsoft\Feeds Cache\U8F4PBMO\desktop.ini svchost.exe File opened for modification C:\Users\Admin\AppData\Local\Microsoft\Windows\Burn\Burn\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Saved Games\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\Admin\AppData\Local\Microsoft\Feeds Cache\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\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\Programs\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\SendTo\Desktop.ini svchost.exe File opened for modification C:\Users\Admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.IE5\4DY23DRT\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\Roaming\Microsoft\Windows\Libraries\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Videos\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\Public\Videos\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\Favorites\desktop.ini svchost.exe File opened for modification C:\Users\Default\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Accessories\Accessibility\Desktop.ini svchost.exe File opened for modification C:\Users\Admin\Documents\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Searches\desktop.ini svchost.exe File opened for modification C:\Users\Public\Downloads\desktop.ini svchost.exe File opened for modification C:\Users\All Users\Microsoft\Windows\Start Menu\Programs\Accessories\Tablet PC\Desktop.ini svchost.exe File opened for modification C:\Users\Public\Pictures\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Music\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\All Users\Microsoft\Windows\Start Menu\Programs\Accessories\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\Start Menu\Programs\Maintenance\Desktop.ini svchost.exe File opened for modification C:\Users\Default\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Accessories\System Tools\Desktop.ini svchost.exe File opened for modification C:\Users\Admin\AppData\Local\Microsoft\Feeds Cache\OM66BHWE\desktop.ini svchost.exe File opened for modification C:\Users\Admin\AppData\Local\Microsoft\Windows\History\History.IE5\desktop.ini svchost.exe File opened for modification C:\Users\Admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.IE5\desktop.ini svchost.exe File opened for modification C:\Users\Admin\AppData\Local\Microsoft\Windows Mail\Stationery\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\Downloads\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Favorites\Links\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\Feeds Cache\YPLB435F\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Contacts\desktop.ini svchost.exe File opened for modification C:\Users\Public\Pictures\Sample Pictures\desktop.ini svchost.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Internet Explorer\Quick Launch\desktop.ini svchost.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Interacts with shadow copies 3 TTPs 1 IoCs
Shadow copies are often targeted by ransomware to inhibit system recovery.
pid Process 2844 vssadmin.exe -
Opens file in notepad (likely ransom note) 1 IoCs
pid Process 2136 NOTEPAD.EXE -
Suspicious behavior: AddClipboardFormatListener 1 IoCs
pid Process 2488 svchost.exe -
Suspicious behavior: EnumeratesProcesses 6 IoCs
pid Process 2528 2025-01-30_20e89f2cec1fb18b7ed5a9ae064d8a26_destroyer_wannacry.exe 2528 2025-01-30_20e89f2cec1fb18b7ed5a9ae064d8a26_destroyer_wannacry.exe 2528 2025-01-30_20e89f2cec1fb18b7ed5a9ae064d8a26_destroyer_wannacry.exe 2488 svchost.exe 2488 svchost.exe 2488 svchost.exe -
Suspicious use of AdjustPrivilegeToken 48 IoCs
description pid Process Token: SeDebugPrivilege 2528 2025-01-30_20e89f2cec1fb18b7ed5a9ae064d8a26_destroyer_wannacry.exe Token: SeDebugPrivilege 2488 svchost.exe Token: SeBackupPrivilege 2976 vssvc.exe Token: SeRestorePrivilege 2976 vssvc.exe Token: SeAuditPrivilege 2976 vssvc.exe Token: SeIncreaseQuotaPrivilege 2604 WMIC.exe Token: SeSecurityPrivilege 2604 WMIC.exe Token: SeTakeOwnershipPrivilege 2604 WMIC.exe Token: SeLoadDriverPrivilege 2604 WMIC.exe Token: SeSystemProfilePrivilege 2604 WMIC.exe Token: SeSystemtimePrivilege 2604 WMIC.exe Token: SeProfSingleProcessPrivilege 2604 WMIC.exe Token: SeIncBasePriorityPrivilege 2604 WMIC.exe Token: SeCreatePagefilePrivilege 2604 WMIC.exe Token: SeBackupPrivilege 2604 WMIC.exe Token: SeRestorePrivilege 2604 WMIC.exe Token: SeShutdownPrivilege 2604 WMIC.exe Token: SeDebugPrivilege 2604 WMIC.exe Token: SeSystemEnvironmentPrivilege 2604 WMIC.exe Token: SeRemoteShutdownPrivilege 2604 WMIC.exe Token: SeUndockPrivilege 2604 WMIC.exe Token: SeManageVolumePrivilege 2604 WMIC.exe Token: 33 2604 WMIC.exe Token: 34 2604 WMIC.exe Token: 35 2604 WMIC.exe Token: SeIncreaseQuotaPrivilege 2604 WMIC.exe Token: SeSecurityPrivilege 2604 WMIC.exe Token: SeTakeOwnershipPrivilege 2604 WMIC.exe Token: SeLoadDriverPrivilege 2604 WMIC.exe Token: SeSystemProfilePrivilege 2604 WMIC.exe Token: SeSystemtimePrivilege 2604 WMIC.exe Token: SeProfSingleProcessPrivilege 2604 WMIC.exe Token: SeIncBasePriorityPrivilege 2604 WMIC.exe Token: SeCreatePagefilePrivilege 2604 WMIC.exe Token: SeBackupPrivilege 2604 WMIC.exe Token: SeRestorePrivilege 2604 WMIC.exe Token: SeShutdownPrivilege 2604 WMIC.exe Token: SeDebugPrivilege 2604 WMIC.exe Token: SeSystemEnvironmentPrivilege 2604 WMIC.exe Token: SeRemoteShutdownPrivilege 2604 WMIC.exe Token: SeUndockPrivilege 2604 WMIC.exe Token: SeManageVolumePrivilege 2604 WMIC.exe Token: 33 2604 WMIC.exe Token: 34 2604 WMIC.exe Token: 35 2604 WMIC.exe Token: SeBackupPrivilege 1304 wbengine.exe Token: SeRestorePrivilege 1304 wbengine.exe Token: SeSecurityPrivilege 1304 wbengine.exe -
Suspicious use of WriteProcessMemory 30 IoCs
description pid Process procid_target PID 2528 wrote to memory of 2488 2528 2025-01-30_20e89f2cec1fb18b7ed5a9ae064d8a26_destroyer_wannacry.exe 30 PID 2528 wrote to memory of 2488 2528 2025-01-30_20e89f2cec1fb18b7ed5a9ae064d8a26_destroyer_wannacry.exe 30 PID 2528 wrote to memory of 2488 2528 2025-01-30_20e89f2cec1fb18b7ed5a9ae064d8a26_destroyer_wannacry.exe 30 PID 2488 wrote to memory of 2728 2488 svchost.exe 31 PID 2488 wrote to memory of 2728 2488 svchost.exe 31 PID 2488 wrote to memory of 2728 2488 svchost.exe 31 PID 2728 wrote to memory of 2844 2728 cmd.exe 33 PID 2728 wrote to memory of 2844 2728 cmd.exe 33 PID 2728 wrote to memory of 2844 2728 cmd.exe 33 PID 2728 wrote to memory of 2604 2728 cmd.exe 36 PID 2728 wrote to memory of 2604 2728 cmd.exe 36 PID 2728 wrote to memory of 2604 2728 cmd.exe 36 PID 2488 wrote to memory of 3052 2488 svchost.exe 38 PID 2488 wrote to memory of 3052 2488 svchost.exe 38 PID 2488 wrote to memory of 3052 2488 svchost.exe 38 PID 3052 wrote to memory of 1644 3052 cmd.exe 40 PID 3052 wrote to memory of 1644 3052 cmd.exe 40 PID 3052 wrote to memory of 1644 3052 cmd.exe 40 PID 3052 wrote to memory of 2008 3052 cmd.exe 41 PID 3052 wrote to memory of 2008 3052 cmd.exe 41 PID 3052 wrote to memory of 2008 3052 cmd.exe 41 PID 2488 wrote to memory of 688 2488 svchost.exe 42 PID 2488 wrote to memory of 688 2488 svchost.exe 42 PID 2488 wrote to memory of 688 2488 svchost.exe 42 PID 688 wrote to memory of 2396 688 cmd.exe 44 PID 688 wrote to memory of 2396 688 cmd.exe 44 PID 688 wrote to memory of 2396 688 cmd.exe 44 PID 2488 wrote to memory of 2136 2488 svchost.exe 49 PID 2488 wrote to memory of 2136 2488 svchost.exe 49 PID 2488 wrote to memory of 2136 2488 svchost.exe 49 -
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\2025-01-30_20e89f2cec1fb18b7ed5a9ae064d8a26_destroyer_wannacry.exe"C:\Users\Admin\AppData\Local\Temp\2025-01-30_20e89f2cec1fb18b7ed5a9ae064d8a26_destroyer_wannacry.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2528 -
C:\Users\Admin\AppData\Roaming\svchost.exe"C:\Users\Admin\AppData\Roaming\svchost.exe"2⤵
- Drops startup file
- Executes dropped EXE
- Adds Run key to start application
- Drops desktop.ini file(s)
- Suspicious behavior: AddClipboardFormatListener
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2488 -
C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" /C vssadmin delete shadows /all /quiet & wmic shadowcopy delete3⤵
- Suspicious use of WriteProcessMemory
PID:2728 -
C:\Windows\system32\vssadmin.exevssadmin delete shadows /all /quiet4⤵
- Interacts with shadow copies
PID:2844
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C:\Windows\System32\Wbem\WMIC.exewmic shadowcopy delete4⤵
- Suspicious use of AdjustPrivilegeToken
PID:2604
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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:3052 -
C:\Windows\system32\bcdedit.exebcdedit /set {default} bootstatuspolicy ignoreallfailures4⤵
- Modifies boot configuration data using bcdedit
PID:1644
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C:\Windows\system32\bcdedit.exebcdedit /set {default} recoveryenabled no4⤵
- Modifies boot configuration data using bcdedit
PID:2008
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C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" /C wbadmin delete catalog -quiet3⤵
- Suspicious use of WriteProcessMemory
PID:688 -
C:\Windows\system32\wbadmin.exewbadmin delete catalog -quiet4⤵
- Deletes backup catalog
PID:2396
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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:2136
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C:\Windows\system32\vssvc.exeC:\Windows\system32\vssvc.exe1⤵
- Suspicious use of AdjustPrivilegeToken
PID:2976
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C:\Windows\system32\wbengine.exe"C:\Windows\system32\wbengine.exe"1⤵
- Suspicious use of AdjustPrivilegeToken
PID:1304
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C:\Windows\System32\vdsldr.exeC:\Windows\System32\vdsldr.exe -Embedding1⤵PID:1620
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C:\Windows\System32\vds.exeC:\Windows\System32\vds.exe1⤵PID:844
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
1Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
582B
MD5ed5cc52876db869de48a4783069c2a5e
SHA1a9d51ceaeff715ace430f9462ab2ee4e7f33e70e
SHA25645726f2f29967ef016f8d556fb6468a577307d67388cc4530295a9ca10fdfa36
SHA5121745aefb9b4db4cdd7c08ee3a7d133db08f35a336fd18b598211519b481ef25ac84a3e8a3da3db06caef9f531288d1cf0ca8d4b2560637945e7953e8b45421f5
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Filesize
27KB
MD520e89f2cec1fb18b7ed5a9ae064d8a26
SHA18a72cef92a281189181750ffac305facb35a8392
SHA256fb2e91ec3aba53e23c80245a65702a4239ec317561d4bc0aee3ee94ad384513e
SHA51232eadc91eb63b6529ec9e15bbbd17e07dd123ea09403aede7529fe12b10156a4169e30fa01bf242a86db43fc0f7aa9399d3b62b0d551f8d60ea1486b9fa908b4
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Filesize
1B
MD5d1457b72c3fb323a2671125aef3eab5d
SHA15bab61eb53176449e25c2c82f172b82cb13ffb9d
SHA2568a8de823d5ed3e12746a62ef169bcf372be0ca44f0a1236abc35df05d96928e1
SHA512ca63c07ad35d8c9fb0c92d6146759b122d4ec5d3f67ebe2f30ddb69f9e6c9fd3bf31a5e408b08f1d4d9cd68120cced9e57f010bef3cde97653fed5470da7d1a0