Analysis
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max time kernel
120s -
max time network
121s -
platform
windows7_x64 -
resource
win7-20240708-en -
resource tags
arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system -
submitted
07-12-2024 15:22
Behavioral task
behavioral1
Sample
2024-12-07_111fc4f48385771ba64e3ddeed0641e9_destroyer_wannacry.exe
Resource
win7-20240708-en
Behavioral task
behavioral2
Sample
2024-12-07_111fc4f48385771ba64e3ddeed0641e9_destroyer_wannacry.exe
Resource
win10v2004-20241007-en
General
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Target
2024-12-07_111fc4f48385771ba64e3ddeed0641e9_destroyer_wannacry.exe
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Size
59KB
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MD5
111fc4f48385771ba64e3ddeed0641e9
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SHA1
9506687750996fda9d36b492dba8727779c37f18
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SHA256
42930c48079c620a1b0a2353e1456748b544c1f2d3a389bbca8539dec227b559
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SHA512
469d74b56270d10f623cb60a00553b6819dcd778977cff97801d35e4ca85fca1da0f4cd5a8de73ce5888adf52d4d7114b36d94e7b0076c92886b40e9c8680e2f
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SSDEEP
1536:QNNma7BSijq9anZCIjxiCG6q86fO+HVwa/eW/oXEat:qmEjq9sc6ACt62+HDWXV
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/2756-1-0x0000000000820000-0x0000000000836000-memory.dmp family_chaos behavioral1/files/0x000b00000001225f-6.dat family_chaos behavioral1/memory/2680-8-0x0000000000E30000-0x0000000000E46000-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 1920 bcdedit.exe 1932 bcdedit.exe -
pid Process 2672 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 2680 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-1-5-21-3551809350-4263495960-1443967649-1000\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\Default\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Maintenance\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\Accessories\Accessibility\Desktop.ini svchost.exe File opened for modification F:\$RECYCLE.BIN\S-1-5-21-3551809350-4263495960-1443967649-1000\desktop.ini svchost.exe File opened for modification C:\Users\Admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.IE5\L2BFB2JG\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\Default\AppData\Roaming\Microsoft\Internet Explorer\Quick Launch\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\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Saved Games\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\Administrative Tools\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\All Users\Microsoft\Windows\Start Menu\Programs\Accessories\Windows PowerShell\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\Favorites\Links for United States\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\7CO3PKGI\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\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.IE5\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\Local\Microsoft\Feeds Cache\desktop.ini svchost.exe File opened for modification C:\Users\Admin\AppData\Local\Microsoft\Feeds Cache\IQBL5G2Z\desktop.ini svchost.exe File opened for modification C:\Users\Admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.IE5\ROVWYKHE\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\Public\Recorded TV\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\Pictures\desktop.ini svchost.exe File opened for modification C:\Users\Public\Pictures\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Links\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\Desktop.ini svchost.exe File opened for modification C:\Users\Admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.IE5\MYC3PENY\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\Public\Music\Sample Music\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\Admin\Videos\desktop.ini svchost.exe File opened for modification C:\Users\Admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.IE5\R9C9T5AL\desktop.ini svchost.exe File opened for modification C:\Users\Public\Documents\desktop.ini svchost.exe File opened for modification C:\Users\Public\Music\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\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\All Users\Microsoft\Windows\Start Menu\Programs\Games\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\Roaming\Microsoft\Windows\Recent\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\Default\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Accessories\Accessibility\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\Downloads\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\SendTo\Desktop.ini svchost.exe File opened for modification C:\Users\Admin\AppData\Local\Microsoft\Feeds Cache\63WZ73PY\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\Documents\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Searches\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\Desktop\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\SendTo\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\History\desktop.ini svchost.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Libraries\desktop.ini svchost.exe -
Sets desktop wallpaper using registry 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-3551809350-4263495960-1443967649-1000\Control Panel\Desktop\Wallpaper = "C:\\Users\\Admin\\AppData\\Local\\Temp\\9x92tulhg.jpg" 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 2604 vssadmin.exe -
Opens file in notepad (likely ransom note) 1 IoCs
pid Process 2032 NOTEPAD.EXE -
Suspicious behavior: AddClipboardFormatListener 1 IoCs
pid Process 2680 svchost.exe -
Suspicious behavior: EnumeratesProcesses 6 IoCs
pid Process 2756 2024-12-07_111fc4f48385771ba64e3ddeed0641e9_destroyer_wannacry.exe 2756 2024-12-07_111fc4f48385771ba64e3ddeed0641e9_destroyer_wannacry.exe 2756 2024-12-07_111fc4f48385771ba64e3ddeed0641e9_destroyer_wannacry.exe 2680 svchost.exe 2680 svchost.exe 2680 svchost.exe -
Suspicious use of AdjustPrivilegeToken 48 IoCs
description pid Process Token: SeDebugPrivilege 2756 2024-12-07_111fc4f48385771ba64e3ddeed0641e9_destroyer_wannacry.exe Token: SeDebugPrivilege 2680 svchost.exe Token: SeBackupPrivilege 2812 vssvc.exe Token: SeRestorePrivilege 2812 vssvc.exe Token: SeAuditPrivilege 2812 vssvc.exe Token: SeIncreaseQuotaPrivilege 3064 WMIC.exe Token: SeSecurityPrivilege 3064 WMIC.exe Token: SeTakeOwnershipPrivilege 3064 WMIC.exe Token: SeLoadDriverPrivilege 3064 WMIC.exe Token: SeSystemProfilePrivilege 3064 WMIC.exe Token: SeSystemtimePrivilege 3064 WMIC.exe Token: SeProfSingleProcessPrivilege 3064 WMIC.exe Token: SeIncBasePriorityPrivilege 3064 WMIC.exe Token: SeCreatePagefilePrivilege 3064 WMIC.exe Token: SeBackupPrivilege 3064 WMIC.exe Token: SeRestorePrivilege 3064 WMIC.exe Token: SeShutdownPrivilege 3064 WMIC.exe Token: SeDebugPrivilege 3064 WMIC.exe Token: SeSystemEnvironmentPrivilege 3064 WMIC.exe Token: SeRemoteShutdownPrivilege 3064 WMIC.exe Token: SeUndockPrivilege 3064 WMIC.exe Token: SeManageVolumePrivilege 3064 WMIC.exe Token: 33 3064 WMIC.exe Token: 34 3064 WMIC.exe Token: 35 3064 WMIC.exe Token: SeIncreaseQuotaPrivilege 3064 WMIC.exe Token: SeSecurityPrivilege 3064 WMIC.exe Token: SeTakeOwnershipPrivilege 3064 WMIC.exe Token: SeLoadDriverPrivilege 3064 WMIC.exe Token: SeSystemProfilePrivilege 3064 WMIC.exe Token: SeSystemtimePrivilege 3064 WMIC.exe Token: SeProfSingleProcessPrivilege 3064 WMIC.exe Token: SeIncBasePriorityPrivilege 3064 WMIC.exe Token: SeCreatePagefilePrivilege 3064 WMIC.exe Token: SeBackupPrivilege 3064 WMIC.exe Token: SeRestorePrivilege 3064 WMIC.exe Token: SeShutdownPrivilege 3064 WMIC.exe Token: SeDebugPrivilege 3064 WMIC.exe Token: SeSystemEnvironmentPrivilege 3064 WMIC.exe Token: SeRemoteShutdownPrivilege 3064 WMIC.exe Token: SeUndockPrivilege 3064 WMIC.exe Token: SeManageVolumePrivilege 3064 WMIC.exe Token: 33 3064 WMIC.exe Token: 34 3064 WMIC.exe Token: 35 3064 WMIC.exe Token: SeBackupPrivilege 348 wbengine.exe Token: SeRestorePrivilege 348 wbengine.exe Token: SeSecurityPrivilege 348 wbengine.exe -
Suspicious use of WriteProcessMemory 30 IoCs
description pid Process procid_target PID 2756 wrote to memory of 2680 2756 2024-12-07_111fc4f48385771ba64e3ddeed0641e9_destroyer_wannacry.exe 31 PID 2756 wrote to memory of 2680 2756 2024-12-07_111fc4f48385771ba64e3ddeed0641e9_destroyer_wannacry.exe 31 PID 2756 wrote to memory of 2680 2756 2024-12-07_111fc4f48385771ba64e3ddeed0641e9_destroyer_wannacry.exe 31 PID 2680 wrote to memory of 2852 2680 svchost.exe 32 PID 2680 wrote to memory of 2852 2680 svchost.exe 32 PID 2680 wrote to memory of 2852 2680 svchost.exe 32 PID 2852 wrote to memory of 2604 2852 cmd.exe 34 PID 2852 wrote to memory of 2604 2852 cmd.exe 34 PID 2852 wrote to memory of 2604 2852 cmd.exe 34 PID 2852 wrote to memory of 3064 2852 cmd.exe 37 PID 2852 wrote to memory of 3064 2852 cmd.exe 37 PID 2852 wrote to memory of 3064 2852 cmd.exe 37 PID 2680 wrote to memory of 868 2680 svchost.exe 39 PID 2680 wrote to memory of 868 2680 svchost.exe 39 PID 2680 wrote to memory of 868 2680 svchost.exe 39 PID 868 wrote to memory of 1920 868 cmd.exe 41 PID 868 wrote to memory of 1920 868 cmd.exe 41 PID 868 wrote to memory of 1920 868 cmd.exe 41 PID 868 wrote to memory of 1932 868 cmd.exe 42 PID 868 wrote to memory of 1932 868 cmd.exe 42 PID 868 wrote to memory of 1932 868 cmd.exe 42 PID 2680 wrote to memory of 2816 2680 svchost.exe 43 PID 2680 wrote to memory of 2816 2680 svchost.exe 43 PID 2680 wrote to memory of 2816 2680 svchost.exe 43 PID 2816 wrote to memory of 2672 2816 cmd.exe 45 PID 2816 wrote to memory of 2672 2816 cmd.exe 45 PID 2816 wrote to memory of 2672 2816 cmd.exe 45 PID 2680 wrote to memory of 2032 2680 svchost.exe 50 PID 2680 wrote to memory of 2032 2680 svchost.exe 50 PID 2680 wrote to memory of 2032 2680 svchost.exe 50 -
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\2024-12-07_111fc4f48385771ba64e3ddeed0641e9_destroyer_wannacry.exe"C:\Users\Admin\AppData\Local\Temp\2024-12-07_111fc4f48385771ba64e3ddeed0641e9_destroyer_wannacry.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2756 -
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)
- Sets desktop wallpaper using registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2680 -
C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" /C vssadmin delete shadows /all /quiet & wmic shadowcopy delete3⤵
- Suspicious use of WriteProcessMemory
PID:2852 -
C:\Windows\system32\vssadmin.exevssadmin delete shadows /all /quiet4⤵
- Interacts with shadow copies
PID:2604
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C:\Windows\System32\Wbem\WMIC.exewmic shadowcopy delete4⤵
- Suspicious use of AdjustPrivilegeToken
PID:3064
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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:868 -
C:\Windows\system32\bcdedit.exebcdedit /set {default} bootstatuspolicy ignoreallfailures4⤵
- Modifies boot configuration data using bcdedit
PID:1920
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C:\Windows\system32\bcdedit.exebcdedit /set {default} recoveryenabled no4⤵
- Modifies boot configuration data using bcdedit
PID:1932
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C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" /C wbadmin delete catalog -quiet3⤵
- Suspicious use of WriteProcessMemory
PID:2816 -
C:\Windows\system32\wbadmin.exewbadmin delete catalog -quiet4⤵
- Deletes backup catalog
PID:2672
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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:2032
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C:\Windows\system32\vssvc.exeC:\Windows\system32\vssvc.exe1⤵
- Suspicious use of AdjustPrivilegeToken
PID:2812
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C:\Windows\system32\wbengine.exe"C:\Windows\system32\wbengine.exe"1⤵
- Suspicious use of AdjustPrivilegeToken
PID:348
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C:\Windows\System32\vdsldr.exeC:\Windows\System32\vdsldr.exe -Embedding1⤵PID:540
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C:\Windows\System32\vds.exeC:\Windows\System32\vds.exe1⤵PID:2764
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
2Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
582B
MD54a75d8cf60e8160c72d6a62965720802
SHA10ef888f515c5bee4ecfda7d9872c725d26a4b75b
SHA256daa102e1cd00e0998749fabb3bdd8078940763a465757ca40b490874a96fd007
SHA5125578da00e3ea355b1be3f915dbb1e1e2e1fe4d502540ae7ccb0e739beb4dc9dbbc3c8dddaad5150ff339db1580c20898dda87afeb653544c9bbcc6e35200b53d
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Filesize
59KB
MD5111fc4f48385771ba64e3ddeed0641e9
SHA19506687750996fda9d36b492dba8727779c37f18
SHA25642930c48079c620a1b0a2353e1456748b544c1f2d3a389bbca8539dec227b559
SHA512469d74b56270d10f623cb60a00553b6819dcd778977cff97801d35e4ca85fca1da0f4cd5a8de73ce5888adf52d4d7114b36d94e7b0076c92886b40e9c8680e2f
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Filesize
1B
MD5d1457b72c3fb323a2671125aef3eab5d
SHA15bab61eb53176449e25c2c82f172b82cb13ffb9d
SHA2568a8de823d5ed3e12746a62ef169bcf372be0ca44f0a1236abc35df05d96928e1
SHA512ca63c07ad35d8c9fb0c92d6146759b122d4ec5d3f67ebe2f30ddb69f9e6c9fd3bf31a5e408b08f1d4d9cd68120cced9e57f010bef3cde97653fed5470da7d1a0