Analysis
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max time kernel
16s -
max time network
17s -
platform
windows7_x64 -
resource
win7-20240729-en -
resource tags
arch:x64arch:x86image:win7-20240729-enlocale:en-usos:windows7-x64system -
submitted
05-10-2024 12:33
Behavioral task
behavioral1
Sample
2024-10-05_865476860ffd6a3223280d9e95212a75_destroyer_wannacry.exe
Resource
win7-20240729-en
Behavioral task
behavioral2
Sample
2024-10-05_865476860ffd6a3223280d9e95212a75_destroyer_wannacry.exe
Resource
win10v2004-20240802-en
General
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Target
2024-10-05_865476860ffd6a3223280d9e95212a75_destroyer_wannacry.exe
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Size
27KB
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MD5
865476860ffd6a3223280d9e95212a75
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SHA1
d709887cdec7260d241c364c8a3d05b899f99911
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SHA256
275b74689249cc22ab5e5b502bb9456c76f0d81eb2c6c75914c3d89e398a4644
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SHA512
c56cf225c3b416db0e01df3f41d8e03e88b267f4e5305118b76fd33dac8b78c600161393270af4f2d2ead9d03d0ecb56d7e6033f0139fa9ea1073e072dc9783d
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SSDEEP
384:UtWZPzzxAm1vp5ZRoDsSgrPiEDNv8V8lQ/xw6fLlJqsvlIOy5o91hWfpC82vb:57zxAmpfysSLEZkqDho9efU82T
Malware Config
Extracted
C:\Users\Admin\AppData\Local\Google\Chrome\User Data\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/2780-1-0x0000000000080000-0x000000000008E000-memory.dmp family_chaos behavioral1/memory/2840-8-0x0000000000A90000-0x0000000000A9E000-memory.dmp family_chaos behavioral1/files/0x00080000000120fe-7.dat family_chaos -
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 344 bcdedit.exe 2680 bcdedit.exe -
pid Process 2120 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 2840 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-1-5-21-2703099537-420551529-3771253338-1000\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\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Accessories\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\All Users\Microsoft\Windows\Start Menu\Programs\Accessories\Accessibility\Desktop.ini svchost.exe File opened for modification C:\Users\Admin\Favorites\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Saved Games\desktop.ini svchost.exe File opened for modification C:\Users\Admin\AppData\Local\Microsoft\Feeds Cache\RTJA0BV0\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\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\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.IE5\3K0NZPWJ\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\Searches\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Pictures\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\Roaming\Microsoft\Windows\Recent\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\Public\desktop.ini svchost.exe File opened for modification C:\Users\Public\Desktop\desktop.ini svchost.exe File opened for modification C:\Users\Public\Libraries\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\Public\Videos\Sample Videos\desktop.ini svchost.exe File opened for modification C:\Users\Admin\AppData\Local\Microsoft\Feeds Cache\CBCNU6WZ\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Desktop\desktop.ini svchost.exe File opened for modification C:\Users\Admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.IE5\B329PW0O\desktop.ini svchost.exe File opened for modification C:\Users\All Users\Microsoft\Windows\Start Menu\Programs\Games\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\Roaming\Microsoft\Windows\Libraries\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\Contacts\desktop.ini svchost.exe File opened for modification C:\Users\Admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.IE5\386UAANV\desktop.ini svchost.exe File opened for modification C:\Users\Public\Videos\desktop.ini svchost.exe File opened for modification F:\$RECYCLE.BIN\S-1-5-21-2703099537-420551529-3771253338-1000\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\AppData\Local\Microsoft\Feeds Cache\JMFEWY8E\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\History\History.IE5\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\Admin\AppData\Roaming\Microsoft\Internet Explorer\Quick Launch\desktop.ini svchost.exe File opened for modification C:\Users\Public\Recorded TV\Sample Media\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\Burn\Burn\desktop.ini svchost.exe File opened for modification C:\Users\Public\Downloads\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\Public\Recorded TV\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\Default\AppData\Roaming\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\Accessories\Tablet PC\Desktop.ini svchost.exe File opened for modification C:\Users\Public\Music\Sample Music\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\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\Documents\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Favorites\Links for United States\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\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Music\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Documents\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\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\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.IE5\FXDUII3O\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\All Users\Microsoft\Windows\Start Menu\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 2948 vssadmin.exe -
Opens file in notepad (likely ransom note) 1 IoCs
pid Process 2544 NOTEPAD.EXE -
Suspicious behavior: AddClipboardFormatListener 2 IoCs
pid Process 2780 2024-10-05_865476860ffd6a3223280d9e95212a75_destroyer_wannacry.exe 2840 svchost.exe -
Suspicious behavior: EnumeratesProcesses 6 IoCs
pid Process 2780 2024-10-05_865476860ffd6a3223280d9e95212a75_destroyer_wannacry.exe 2780 2024-10-05_865476860ffd6a3223280d9e95212a75_destroyer_wannacry.exe 2780 2024-10-05_865476860ffd6a3223280d9e95212a75_destroyer_wannacry.exe 2840 svchost.exe 2840 svchost.exe 2840 svchost.exe -
Suspicious use of AdjustPrivilegeToken 48 IoCs
description pid Process Token: SeDebugPrivilege 2780 2024-10-05_865476860ffd6a3223280d9e95212a75_destroyer_wannacry.exe Token: SeDebugPrivilege 2840 svchost.exe Token: SeBackupPrivilege 2912 vssvc.exe Token: SeRestorePrivilege 2912 vssvc.exe Token: SeAuditPrivilege 2912 vssvc.exe Token: SeIncreaseQuotaPrivilege 3028 WMIC.exe Token: SeSecurityPrivilege 3028 WMIC.exe Token: SeTakeOwnershipPrivilege 3028 WMIC.exe Token: SeLoadDriverPrivilege 3028 WMIC.exe Token: SeSystemProfilePrivilege 3028 WMIC.exe Token: SeSystemtimePrivilege 3028 WMIC.exe Token: SeProfSingleProcessPrivilege 3028 WMIC.exe Token: SeIncBasePriorityPrivilege 3028 WMIC.exe Token: SeCreatePagefilePrivilege 3028 WMIC.exe Token: SeBackupPrivilege 3028 WMIC.exe Token: SeRestorePrivilege 3028 WMIC.exe Token: SeShutdownPrivilege 3028 WMIC.exe Token: SeDebugPrivilege 3028 WMIC.exe Token: SeSystemEnvironmentPrivilege 3028 WMIC.exe Token: SeRemoteShutdownPrivilege 3028 WMIC.exe Token: SeUndockPrivilege 3028 WMIC.exe Token: SeManageVolumePrivilege 3028 WMIC.exe Token: 33 3028 WMIC.exe Token: 34 3028 WMIC.exe Token: 35 3028 WMIC.exe Token: SeIncreaseQuotaPrivilege 3028 WMIC.exe Token: SeSecurityPrivilege 3028 WMIC.exe Token: SeTakeOwnershipPrivilege 3028 WMIC.exe Token: SeLoadDriverPrivilege 3028 WMIC.exe Token: SeSystemProfilePrivilege 3028 WMIC.exe Token: SeSystemtimePrivilege 3028 WMIC.exe Token: SeProfSingleProcessPrivilege 3028 WMIC.exe Token: SeIncBasePriorityPrivilege 3028 WMIC.exe Token: SeCreatePagefilePrivilege 3028 WMIC.exe Token: SeBackupPrivilege 3028 WMIC.exe Token: SeRestorePrivilege 3028 WMIC.exe Token: SeShutdownPrivilege 3028 WMIC.exe Token: SeDebugPrivilege 3028 WMIC.exe Token: SeSystemEnvironmentPrivilege 3028 WMIC.exe Token: SeRemoteShutdownPrivilege 3028 WMIC.exe Token: SeUndockPrivilege 3028 WMIC.exe Token: SeManageVolumePrivilege 3028 WMIC.exe Token: 33 3028 WMIC.exe Token: 34 3028 WMIC.exe Token: 35 3028 WMIC.exe Token: SeBackupPrivilege 3048 wbengine.exe Token: SeRestorePrivilege 3048 wbengine.exe Token: SeSecurityPrivilege 3048 wbengine.exe -
Suspicious use of WriteProcessMemory 30 IoCs
description pid Process procid_target PID 2780 wrote to memory of 2840 2780 2024-10-05_865476860ffd6a3223280d9e95212a75_destroyer_wannacry.exe 30 PID 2780 wrote to memory of 2840 2780 2024-10-05_865476860ffd6a3223280d9e95212a75_destroyer_wannacry.exe 30 PID 2780 wrote to memory of 2840 2780 2024-10-05_865476860ffd6a3223280d9e95212a75_destroyer_wannacry.exe 30 PID 2840 wrote to memory of 2920 2840 svchost.exe 31 PID 2840 wrote to memory of 2920 2840 svchost.exe 31 PID 2840 wrote to memory of 2920 2840 svchost.exe 31 PID 2920 wrote to memory of 2948 2920 cmd.exe 33 PID 2920 wrote to memory of 2948 2920 cmd.exe 33 PID 2920 wrote to memory of 2948 2920 cmd.exe 33 PID 2920 wrote to memory of 3028 2920 cmd.exe 36 PID 2920 wrote to memory of 3028 2920 cmd.exe 36 PID 2920 wrote to memory of 3028 2920 cmd.exe 36 PID 2840 wrote to memory of 2032 2840 svchost.exe 38 PID 2840 wrote to memory of 2032 2840 svchost.exe 38 PID 2840 wrote to memory of 2032 2840 svchost.exe 38 PID 2032 wrote to memory of 344 2032 cmd.exe 40 PID 2032 wrote to memory of 344 2032 cmd.exe 40 PID 2032 wrote to memory of 344 2032 cmd.exe 40 PID 2032 wrote to memory of 2680 2032 cmd.exe 41 PID 2032 wrote to memory of 2680 2032 cmd.exe 41 PID 2032 wrote to memory of 2680 2032 cmd.exe 41 PID 2840 wrote to memory of 1212 2840 svchost.exe 42 PID 2840 wrote to memory of 1212 2840 svchost.exe 42 PID 2840 wrote to memory of 1212 2840 svchost.exe 42 PID 1212 wrote to memory of 2120 1212 cmd.exe 44 PID 1212 wrote to memory of 2120 1212 cmd.exe 44 PID 1212 wrote to memory of 2120 1212 cmd.exe 44 PID 2840 wrote to memory of 2544 2840 svchost.exe 49 PID 2840 wrote to memory of 2544 2840 svchost.exe 49 PID 2840 wrote to memory of 2544 2840 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\2024-10-05_865476860ffd6a3223280d9e95212a75_destroyer_wannacry.exe"C:\Users\Admin\AppData\Local\Temp\2024-10-05_865476860ffd6a3223280d9e95212a75_destroyer_wannacry.exe"1⤵
- Suspicious behavior: AddClipboardFormatListener
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2780 -
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:2840 -
C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" /C vssadmin delete shadows /all /quiet & wmic shadowcopy delete3⤵
- Suspicious use of WriteProcessMemory
PID:2920 -
C:\Windows\system32\vssadmin.exevssadmin delete shadows /all /quiet4⤵
- Interacts with shadow copies
PID:2948
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C:\Windows\System32\Wbem\WMIC.exewmic shadowcopy delete4⤵
- Suspicious use of AdjustPrivilegeToken
PID:3028
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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:2032 -
C:\Windows\system32\bcdedit.exebcdedit /set {default} bootstatuspolicy ignoreallfailures4⤵
- Modifies boot configuration data using bcdedit
PID:344
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C:\Windows\system32\bcdedit.exebcdedit /set {default} recoveryenabled no4⤵
- Modifies boot configuration data using bcdedit
PID:2680
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C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" /C wbadmin delete catalog -quiet3⤵
- Suspicious use of WriteProcessMemory
PID:1212 -
C:\Windows\system32\wbadmin.exewbadmin delete catalog -quiet4⤵
- Deletes backup catalog
PID:2120
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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:2544
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C:\Windows\system32\vssvc.exeC:\Windows\system32\vssvc.exe1⤵
- Suspicious use of AdjustPrivilegeToken
PID:2912
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C:\Windows\system32\wbengine.exe"C:\Windows\system32\wbengine.exe"1⤵
- Suspicious use of AdjustPrivilegeToken
PID:3048
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C:\Windows\System32\vdsldr.exeC:\Windows\System32\vdsldr.exe -Embedding1⤵PID:1868
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C:\Windows\System32\vds.exeC:\Windows\System32\vds.exe1⤵PID:2908
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
MD5865476860ffd6a3223280d9e95212a75
SHA1d709887cdec7260d241c364c8a3d05b899f99911
SHA256275b74689249cc22ab5e5b502bb9456c76f0d81eb2c6c75914c3d89e398a4644
SHA512c56cf225c3b416db0e01df3f41d8e03e88b267f4e5305118b76fd33dac8b78c600161393270af4f2d2ead9d03d0ecb56d7e6033f0139fa9ea1073e072dc9783d
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Filesize
1B
MD5d1457b72c3fb323a2671125aef3eab5d
SHA15bab61eb53176449e25c2c82f172b82cb13ffb9d
SHA2568a8de823d5ed3e12746a62ef169bcf372be0ca44f0a1236abc35df05d96928e1
SHA512ca63c07ad35d8c9fb0c92d6146759b122d4ec5d3f67ebe2f30ddb69f9e6c9fd3bf31a5e408b08f1d4d9cd68120cced9e57f010bef3cde97653fed5470da7d1a0