Analysis
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max time kernel
120s -
max time network
123s -
platform
windows7_x64 -
resource
win7-20240704-en -
resource tags
arch:x64arch:x86image:win7-20240704-enlocale:en-usos:windows7-x64system -
submitted
27-08-2024 19:26
Behavioral task
behavioral1
Sample
2024-08-27_12964292654b711b26b0039661181e7b_destroyer_wannacry.exe
Resource
win7-20240704-en
Behavioral task
behavioral2
Sample
2024-08-27_12964292654b711b26b0039661181e7b_destroyer_wannacry.exe
Resource
win10v2004-20240802-en
General
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Target
2024-08-27_12964292654b711b26b0039661181e7b_destroyer_wannacry.exe
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Size
27KB
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MD5
12964292654b711b26b0039661181e7b
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SHA1
37b01028df0a60e9f945776f14b6f44f1980061f
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SHA256
aa62ff9d44c493287764f1efa85f236c2d633d68724d907279709559b56572d2
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SHA512
19bb5a23832acff3bba40f31655b9cf604dadd1f92c8af4e9ccf480c9f39947fb8177ecae43e3f642b2fac82e7afda65afd2d38ed0c31e0a135374f21b9d55ad
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SSDEEP
384:QtWZPzzxAm1vp5ZRoDNhvLKeOS2NiCXlROy5o91+WSFpQ082v5:l7zxAmpfyzeeOSSi2ho9wWSFb82R
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/1900-1-0x0000000000FB0000-0x0000000000FBE000-memory.dmp family_chaos behavioral1/files/0x000f000000013423-6.dat family_chaos behavioral1/memory/2624-8-0x00000000000A0000-0x00000000000AE000-memory.dmp 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 3064 bcdedit.exe 2100 bcdedit.exe -
pid Process 1688 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 2624 svchost.exe -
Reads user/profile data of web browsers 2 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-1-5-21-3450744190-3404161390-554719085-1000\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\Local\Microsoft\Windows\History\History.IE5\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\Videos\desktop.ini svchost.exe File opened for modification C:\Users\Admin\AppData\Local\Microsoft\Feeds Cache\G4UA8T7D\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\Links for United States\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\Temporary Internet Files\Content.IE5\desktop.ini svchost.exe File opened for modification F:\$RECYCLE.BIN\S-1-5-21-3450744190-3404161390-554719085-1000\desktop.ini svchost.exe File opened for modification C:\Users\Admin\AppData\Local\Microsoft\Feeds Cache\E9P9LRO9\desktop.ini svchost.exe File opened for modification C:\Users\Admin\AppData\Local\Microsoft\Feeds Cache\FGBCC7A8\desktop.ini svchost.exe File opened for modification C:\Users\Admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.IE5\XLI5Q0EH\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\Documents\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\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\Accessories\Tablet PC\Desktop.ini svchost.exe File opened for modification C:\Users\Admin\Searches\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\Windows\Start Menu\Programs\Accessories\Accessibility\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\All Users\Microsoft\Windows\Start Menu\Programs\Startup\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\Pictures\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\Favorites\desktop.ini svchost.exe File opened for modification C:\Users\Admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.IE5\JVMDVGRW\desktop.ini svchost.exe File opened for modification C:\Users\Admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.IE5\OJBRRE9R\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Saved Games\desktop.ini svchost.exe File opened for modification C:\Users\Public\Music\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\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\All Users\Microsoft\Windows\Start Menu\Programs\Administrative Tools\desktop.ini svchost.exe File opened for modification C:\Users\Public\Libraries\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\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\Administrative Tools\desktop.ini svchost.exe File opened for modification C:\Users\Admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.IE5\FH198YO1\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\Ringtones\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\Roaming\Microsoft\Windows\Start Menu\Programs\Accessories\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\Internet Explorer\Quick Launch\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\Pictures\desktop.ini svchost.exe File opened for modification C:\Users\Admin\AppData\Local\Microsoft\Feeds Cache\AJW4QSK9\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\Windows\Recent\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\Public\Recorded TV\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\Videos\Sample Videos\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\Windows\Start Menu\Programs\Accessories\System Tools\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\Local\Microsoft\Windows\Temporary Internet Files\desktop.ini svchost.exe File opened for modification C:\Users\Public\Downloads\desktop.ini svchost.exe File opened for modification C:\Users\Admin\AppData\Local\Microsoft\Windows\History\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 2648 vssadmin.exe -
Opens file in notepad (likely ransom note) 1 IoCs
pid Process 1016 NOTEPAD.EXE -
Suspicious behavior: AddClipboardFormatListener 2 IoCs
pid Process 1900 2024-08-27_12964292654b711b26b0039661181e7b_destroyer_wannacry.exe 2624 svchost.exe -
Suspicious behavior: EnumeratesProcesses 8 IoCs
pid Process 1900 2024-08-27_12964292654b711b26b0039661181e7b_destroyer_wannacry.exe 1900 2024-08-27_12964292654b711b26b0039661181e7b_destroyer_wannacry.exe 1900 2024-08-27_12964292654b711b26b0039661181e7b_destroyer_wannacry.exe 2624 svchost.exe 2624 svchost.exe 2624 svchost.exe 2624 svchost.exe 2624 svchost.exe -
Suspicious use of AdjustPrivilegeToken 48 IoCs
description pid Process Token: SeDebugPrivilege 1900 2024-08-27_12964292654b711b26b0039661181e7b_destroyer_wannacry.exe Token: SeDebugPrivilege 2624 svchost.exe Token: SeBackupPrivilege 2984 vssvc.exe Token: SeRestorePrivilege 2984 vssvc.exe Token: SeAuditPrivilege 2984 vssvc.exe Token: SeIncreaseQuotaPrivilege 2544 WMIC.exe Token: SeSecurityPrivilege 2544 WMIC.exe Token: SeTakeOwnershipPrivilege 2544 WMIC.exe Token: SeLoadDriverPrivilege 2544 WMIC.exe Token: SeSystemProfilePrivilege 2544 WMIC.exe Token: SeSystemtimePrivilege 2544 WMIC.exe Token: SeProfSingleProcessPrivilege 2544 WMIC.exe Token: SeIncBasePriorityPrivilege 2544 WMIC.exe Token: SeCreatePagefilePrivilege 2544 WMIC.exe Token: SeBackupPrivilege 2544 WMIC.exe Token: SeRestorePrivilege 2544 WMIC.exe Token: SeShutdownPrivilege 2544 WMIC.exe Token: SeDebugPrivilege 2544 WMIC.exe Token: SeSystemEnvironmentPrivilege 2544 WMIC.exe Token: SeRemoteShutdownPrivilege 2544 WMIC.exe Token: SeUndockPrivilege 2544 WMIC.exe Token: SeManageVolumePrivilege 2544 WMIC.exe Token: 33 2544 WMIC.exe Token: 34 2544 WMIC.exe Token: 35 2544 WMIC.exe Token: SeIncreaseQuotaPrivilege 2544 WMIC.exe Token: SeSecurityPrivilege 2544 WMIC.exe Token: SeTakeOwnershipPrivilege 2544 WMIC.exe Token: SeLoadDriverPrivilege 2544 WMIC.exe Token: SeSystemProfilePrivilege 2544 WMIC.exe Token: SeSystemtimePrivilege 2544 WMIC.exe Token: SeProfSingleProcessPrivilege 2544 WMIC.exe Token: SeIncBasePriorityPrivilege 2544 WMIC.exe Token: SeCreatePagefilePrivilege 2544 WMIC.exe Token: SeBackupPrivilege 2544 WMIC.exe Token: SeRestorePrivilege 2544 WMIC.exe Token: SeShutdownPrivilege 2544 WMIC.exe Token: SeDebugPrivilege 2544 WMIC.exe Token: SeSystemEnvironmentPrivilege 2544 WMIC.exe Token: SeRemoteShutdownPrivilege 2544 WMIC.exe Token: SeUndockPrivilege 2544 WMIC.exe Token: SeManageVolumePrivilege 2544 WMIC.exe Token: 33 2544 WMIC.exe Token: 34 2544 WMIC.exe Token: 35 2544 WMIC.exe Token: SeBackupPrivilege 1868 wbengine.exe Token: SeRestorePrivilege 1868 wbengine.exe Token: SeSecurityPrivilege 1868 wbengine.exe -
Suspicious use of WriteProcessMemory 30 IoCs
description pid Process procid_target PID 1900 wrote to memory of 2624 1900 2024-08-27_12964292654b711b26b0039661181e7b_destroyer_wannacry.exe 31 PID 1900 wrote to memory of 2624 1900 2024-08-27_12964292654b711b26b0039661181e7b_destroyer_wannacry.exe 31 PID 1900 wrote to memory of 2624 1900 2024-08-27_12964292654b711b26b0039661181e7b_destroyer_wannacry.exe 31 PID 2624 wrote to memory of 2632 2624 svchost.exe 32 PID 2624 wrote to memory of 2632 2624 svchost.exe 32 PID 2624 wrote to memory of 2632 2624 svchost.exe 32 PID 2632 wrote to memory of 2648 2632 cmd.exe 34 PID 2632 wrote to memory of 2648 2632 cmd.exe 34 PID 2632 wrote to memory of 2648 2632 cmd.exe 34 PID 2632 wrote to memory of 2544 2632 cmd.exe 37 PID 2632 wrote to memory of 2544 2632 cmd.exe 37 PID 2632 wrote to memory of 2544 2632 cmd.exe 37 PID 2624 wrote to memory of 3060 2624 svchost.exe 39 PID 2624 wrote to memory of 3060 2624 svchost.exe 39 PID 2624 wrote to memory of 3060 2624 svchost.exe 39 PID 3060 wrote to memory of 3064 3060 cmd.exe 41 PID 3060 wrote to memory of 3064 3060 cmd.exe 41 PID 3060 wrote to memory of 3064 3060 cmd.exe 41 PID 3060 wrote to memory of 2100 3060 cmd.exe 42 PID 3060 wrote to memory of 2100 3060 cmd.exe 42 PID 3060 wrote to memory of 2100 3060 cmd.exe 42 PID 2624 wrote to memory of 1564 2624 svchost.exe 43 PID 2624 wrote to memory of 1564 2624 svchost.exe 43 PID 2624 wrote to memory of 1564 2624 svchost.exe 43 PID 1564 wrote to memory of 1688 1564 cmd.exe 45 PID 1564 wrote to memory of 1688 1564 cmd.exe 45 PID 1564 wrote to memory of 1688 1564 cmd.exe 45 PID 2624 wrote to memory of 1016 2624 svchost.exe 50 PID 2624 wrote to memory of 1016 2624 svchost.exe 50 PID 2624 wrote to memory of 1016 2624 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\2024-08-27_12964292654b711b26b0039661181e7b_destroyer_wannacry.exe"C:\Users\Admin\AppData\Local\Temp\2024-08-27_12964292654b711b26b0039661181e7b_destroyer_wannacry.exe"1⤵
- Suspicious behavior: AddClipboardFormatListener
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1900 -
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:2624 -
C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" /C vssadmin delete shadows /all /quiet & wmic shadowcopy delete3⤵
- Suspicious use of WriteProcessMemory
PID:2632 -
C:\Windows\system32\vssadmin.exevssadmin delete shadows /all /quiet4⤵
- Interacts with shadow copies
PID:2648
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C:\Windows\System32\Wbem\WMIC.exewmic shadowcopy delete4⤵
- Suspicious use of AdjustPrivilegeToken
PID:2544
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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:3060 -
C:\Windows\system32\bcdedit.exebcdedit /set {default} bootstatuspolicy ignoreallfailures4⤵
- Modifies boot configuration data using bcdedit
PID:3064
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C:\Windows\system32\bcdedit.exebcdedit /set {default} recoveryenabled no4⤵
- Modifies boot configuration data using bcdedit
PID:2100
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C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" /C wbadmin delete catalog -quiet3⤵
- Suspicious use of WriteProcessMemory
PID:1564 -
C:\Windows\system32\wbadmin.exewbadmin delete catalog -quiet4⤵
- Deletes backup catalog
PID:1688
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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:1016
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C:\Windows\system32\vssvc.exeC:\Windows\system32\vssvc.exe1⤵
- Suspicious use of AdjustPrivilegeToken
PID:2984
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C:\Windows\system32\wbengine.exe"C:\Windows\system32\wbengine.exe"1⤵
- Suspicious use of AdjustPrivilegeToken
PID:1868
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C:\Windows\System32\vdsldr.exeC:\Windows\System32\vdsldr.exe -Embedding1⤵PID:1228
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C:\Windows\System32\vds.exeC:\Windows\System32\vds.exe1⤵PID:316
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
582B
MD5ed5cc52876db869de48a4783069c2a5e
SHA1a9d51ceaeff715ace430f9462ab2ee4e7f33e70e
SHA25645726f2f29967ef016f8d556fb6468a577307d67388cc4530295a9ca10fdfa36
SHA5121745aefb9b4db4cdd7c08ee3a7d133db08f35a336fd18b598211519b481ef25ac84a3e8a3da3db06caef9f531288d1cf0ca8d4b2560637945e7953e8b45421f5
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Filesize
27KB
MD512964292654b711b26b0039661181e7b
SHA137b01028df0a60e9f945776f14b6f44f1980061f
SHA256aa62ff9d44c493287764f1efa85f236c2d633d68724d907279709559b56572d2
SHA51219bb5a23832acff3bba40f31655b9cf604dadd1f92c8af4e9ccf480c9f39947fb8177ecae43e3f642b2fac82e7afda65afd2d38ed0c31e0a135374f21b9d55ad
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Filesize
1B
MD5d1457b72c3fb323a2671125aef3eab5d
SHA15bab61eb53176449e25c2c82f172b82cb13ffb9d
SHA2568a8de823d5ed3e12746a62ef169bcf372be0ca44f0a1236abc35df05d96928e1
SHA512ca63c07ad35d8c9fb0c92d6146759b122d4ec5d3f67ebe2f30ddb69f9e6c9fd3bf31a5e408b08f1d4d9cd68120cced9e57f010bef3cde97653fed5470da7d1a0