Analysis
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max time kernel
121s -
max time network
121s -
platform
windows7_x64 -
resource
win7-20241023-en -
resource tags
arch:x64arch:x86image:win7-20241023-enlocale:en-usos:windows7-x64system -
submitted
28-10-2024 07:34
Behavioral task
behavioral1
Sample
2024-10-28_98011861dd4642548822c5638e7c9ea6_destroyer_wannacry.exe
Resource
win7-20241023-en
Behavioral task
behavioral2
Sample
2024-10-28_98011861dd4642548822c5638e7c9ea6_destroyer_wannacry.exe
Resource
win10v2004-20241007-en
General
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Target
2024-10-28_98011861dd4642548822c5638e7c9ea6_destroyer_wannacry.exe
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Size
27KB
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MD5
98011861dd4642548822c5638e7c9ea6
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SHA1
9084b3fd1166451a8380a9d00294cc7dafbef923
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SHA256
093a58d6f3473fe31b0a10238a202f1abb9586109bba2d3db1690ddfeec896e5
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SHA512
6f54e4a69ab351469943e5ddac3259ab55b7351a2d75fc4857262eedd8c4f4b2d05e16ba30e6c0e84d8d91d731b4ad19711a91a9a3f4bccb86d1b2bd7bc4db20
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SSDEEP
384:UtWZPzzxAm1vpe1HY6TWnfzvOpaRIlPOy5o91WE5NdVS82vn:57zxAmO1HQzvgaEho94E5Nd882f
Malware Config
Extracted
C:\ProgramData\Adobe\Updater6\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/1292-1-0x0000000001010000-0x000000000101E000-memory.dmp family_chaos behavioral1/files/0x000b000000012280-6.dat family_chaos behavioral1/memory/2484-8-0x0000000000C10000-0x0000000000C1E000-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 336 bcdedit.exe 1764 bcdedit.exe -
pid Process 1964 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 Ransomware-Builder.exe File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\read_it.txt Ransomware-Builder.exe -
Executes dropped EXE 1 IoCs
pid Process 2484 Ransomware-Builder.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-1-5-21-1163522206-1469769407-485553996-1000\Software\Microsoft\Windows\CurrentVersion\Run\UpdateTask = "C:\\Users\\Admin\\AppData\\Roaming\\Ransomware-Builder.exe" Ransomware-Builder.exe -
Drops desktop.ini file(s) 64 IoCs
description ioc Process File opened for modification C:\Users\Public\Music\desktop.ini Ransomware-Builder.exe File opened for modification C:\Users\All Users\Microsoft\Windows\Start Menu\desktop.ini Ransomware-Builder.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Maintenance\Desktop.ini Ransomware-Builder.exe File opened for modification C:\Users\Admin\Links\desktop.ini Ransomware-Builder.exe File opened for modification C:\Users\Public\Libraries\desktop.ini Ransomware-Builder.exe File opened for modification C:\Users\Public\Music\Sample Music\desktop.ini Ransomware-Builder.exe File opened for modification C:\Users\Admin\AppData\Local\Microsoft\Windows Mail\Stationery\Desktop.ini Ransomware-Builder.exe File opened for modification C:\Users\Admin\Pictures\desktop.ini Ransomware-Builder.exe File opened for modification C:\Users\Default\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Maintenance\Desktop.ini Ransomware-Builder.exe File opened for modification C:\Users\Admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.IE5\3D87ST3G\desktop.ini Ransomware-Builder.exe File opened for modification C:\Users\All Users\Microsoft\Windows\Start Menu\Programs\Games\Desktop.ini Ransomware-Builder.exe File opened for modification C:\Users\Public\Recorded TV\Sample Media\desktop.ini Ransomware-Builder.exe File opened for modification C:\Users\Public\Videos\Sample Videos\desktop.ini Ransomware-Builder.exe File opened for modification C:\Users\Default\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Accessories\Desktop.ini Ransomware-Builder.exe File opened for modification C:\Users\All Users\Microsoft\Windows\Start Menu\Programs\Accessories\Desktop.ini Ransomware-Builder.exe File opened for modification C:\Users\All Users\Microsoft\Windows\Start Menu\Programs\Accessories\Accessibility\Desktop.ini Ransomware-Builder.exe File opened for modification C:\Users\All Users\Microsoft\Windows\Start Menu\Programs\Administrative Tools\desktop.ini Ransomware-Builder.exe File opened for modification C:\Users\Default\AppData\Roaming\Microsoft\Internet Explorer\Quick Launch\desktop.ini Ransomware-Builder.exe File opened for modification C:\Users\Public\desktop.ini Ransomware-Builder.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Libraries\desktop.ini Ransomware-Builder.exe File opened for modification C:\Users\Admin\Downloads\desktop.ini Ransomware-Builder.exe File opened for modification C:\Users\Admin\Searches\desktop.ini Ransomware-Builder.exe File opened for modification C:\Users\Public\Videos\desktop.ini Ransomware-Builder.exe File opened for modification C:\Users\Admin\Documents\desktop.ini Ransomware-Builder.exe File opened for modification C:\Users\Default\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Accessories\Accessibility\Desktop.ini Ransomware-Builder.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Internet Explorer\Quick Launch\desktop.ini Ransomware-Builder.exe File opened for modification C:\Users\Public\Pictures\Sample Pictures\desktop.ini Ransomware-Builder.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Accessories\Desktop.ini Ransomware-Builder.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Accessories\Accessibility\Desktop.ini Ransomware-Builder.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Internet Explorer\Quick Launch\User Pinned\TaskBar\desktop.ini Ransomware-Builder.exe File opened for modification C:\Users\Admin\AppData\Local\Microsoft\Feeds Cache\desktop.ini Ransomware-Builder.exe File opened for modification C:\Users\Admin\AppData\Local\Microsoft\Feeds Cache\JEDNWX6E\desktop.ini Ransomware-Builder.exe File opened for modification C:\Users\Admin\AppData\Local\Microsoft\Windows\History\History.IE5\desktop.ini Ransomware-Builder.exe File opened for modification C:\Users\All Users\Microsoft\Windows\Start Menu\Programs\Accessories\System Tools\Desktop.ini Ransomware-Builder.exe File opened for modification C:\Users\Public\Pictures\desktop.ini Ransomware-Builder.exe File opened for modification C:\Users\Admin\AppData\Local\Microsoft\Feeds Cache\4FXYHFK9\desktop.ini Ransomware-Builder.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\desktop.ini Ransomware-Builder.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Administrative Tools\desktop.ini Ransomware-Builder.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\SendTo\Desktop.ini Ransomware-Builder.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\desktop.ini Ransomware-Builder.exe File opened for modification C:\Users\Default\AppData\Roaming\Microsoft\Windows\SendTo\Desktop.ini Ransomware-Builder.exe File opened for modification C:\Users\Admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.IE5\4JFE2I4S\desktop.ini Ransomware-Builder.exe File opened for modification C:\Users\Admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.IE5\IJMS2YBB\desktop.ini Ransomware-Builder.exe File opened for modification C:\Users\Admin\Contacts\desktop.ini Ransomware-Builder.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\desktop.ini Ransomware-Builder.exe File opened for modification C:\Users\Admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.IE5\desktop.ini Ransomware-Builder.exe File opened for modification C:\Users\All Users\Microsoft\Windows\Start Menu\Programs\Maintenance\Desktop.ini Ransomware-Builder.exe File opened for modification C:\Users\Admin\Favorites\Links for United States\desktop.ini Ransomware-Builder.exe File opened for modification C:\Users\Admin\Videos\desktop.ini Ransomware-Builder.exe File opened for modification F:\$RECYCLE.BIN\S-1-5-21-1163522206-1469769407-485553996-1000\desktop.ini Ransomware-Builder.exe File opened for modification C:\Users\Admin\AppData\Local\Microsoft\Windows\History\desktop.ini Ransomware-Builder.exe File opened for modification C:\Users\Public\Desktop\desktop.ini Ransomware-Builder.exe File opened for modification C:\Users\All Users\Microsoft\Windows\Start Menu\Programs\Accessories\Tablet PC\Desktop.ini Ransomware-Builder.exe File opened for modification C:\Users\All Users\Microsoft\Windows\Start Menu\Programs\Accessories\Windows PowerShell\desktop.ini Ransomware-Builder.exe File opened for modification C:\Users\Admin\Music\desktop.ini Ransomware-Builder.exe File opened for modification C:\Users\Admin\AppData\Local\Microsoft\Feeds Cache\SMFN3Z3Q\desktop.ini Ransomware-Builder.exe File opened for modification C:\Users\Admin\AppData\Local\Microsoft\Windows\Burn\Burn\desktop.ini Ransomware-Builder.exe File opened for modification C:\Users\All Users\Microsoft\Windows\Start Menu\Programs\desktop.ini Ransomware-Builder.exe File opened for modification C:\Users\Admin\Desktop\desktop.ini Ransomware-Builder.exe File opened for modification C:\Users\Public\Downloads\desktop.ini Ransomware-Builder.exe File opened for modification C:\Users\Admin\Favorites\desktop.ini Ransomware-Builder.exe File opened for modification C:\Users\Public\Documents\desktop.ini Ransomware-Builder.exe File opened for modification C:\Users\All Users\Microsoft\Windows\Ringtones\desktop.ini Ransomware-Builder.exe File opened for modification C:\Users\Public\Recorded TV\desktop.ini Ransomware-Builder.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 2876 vssadmin.exe -
Opens file in notepad (likely ransom note) 1 IoCs
pid Process 1536 NOTEPAD.EXE -
Suspicious behavior: AddClipboardFormatListener 1 IoCs
pid Process 2484 Ransomware-Builder.exe -
Suspicious behavior: EnumeratesProcesses 6 IoCs
pid Process 1292 2024-10-28_98011861dd4642548822c5638e7c9ea6_destroyer_wannacry.exe 1292 2024-10-28_98011861dd4642548822c5638e7c9ea6_destroyer_wannacry.exe 1292 2024-10-28_98011861dd4642548822c5638e7c9ea6_destroyer_wannacry.exe 2484 Ransomware-Builder.exe 2484 Ransomware-Builder.exe 2484 Ransomware-Builder.exe -
Suspicious use of AdjustPrivilegeToken 48 IoCs
description pid Process Token: SeDebugPrivilege 1292 2024-10-28_98011861dd4642548822c5638e7c9ea6_destroyer_wannacry.exe Token: SeDebugPrivilege 2484 Ransomware-Builder.exe Token: SeBackupPrivilege 2816 vssvc.exe Token: SeRestorePrivilege 2816 vssvc.exe Token: SeAuditPrivilege 2816 vssvc.exe Token: SeIncreaseQuotaPrivilege 2680 WMIC.exe Token: SeSecurityPrivilege 2680 WMIC.exe Token: SeTakeOwnershipPrivilege 2680 WMIC.exe Token: SeLoadDriverPrivilege 2680 WMIC.exe Token: SeSystemProfilePrivilege 2680 WMIC.exe Token: SeSystemtimePrivilege 2680 WMIC.exe Token: SeProfSingleProcessPrivilege 2680 WMIC.exe Token: SeIncBasePriorityPrivilege 2680 WMIC.exe Token: SeCreatePagefilePrivilege 2680 WMIC.exe Token: SeBackupPrivilege 2680 WMIC.exe Token: SeRestorePrivilege 2680 WMIC.exe Token: SeShutdownPrivilege 2680 WMIC.exe Token: SeDebugPrivilege 2680 WMIC.exe Token: SeSystemEnvironmentPrivilege 2680 WMIC.exe Token: SeRemoteShutdownPrivilege 2680 WMIC.exe Token: SeUndockPrivilege 2680 WMIC.exe Token: SeManageVolumePrivilege 2680 WMIC.exe Token: 33 2680 WMIC.exe Token: 34 2680 WMIC.exe Token: 35 2680 WMIC.exe Token: SeIncreaseQuotaPrivilege 2680 WMIC.exe Token: SeSecurityPrivilege 2680 WMIC.exe Token: SeTakeOwnershipPrivilege 2680 WMIC.exe Token: SeLoadDriverPrivilege 2680 WMIC.exe Token: SeSystemProfilePrivilege 2680 WMIC.exe Token: SeSystemtimePrivilege 2680 WMIC.exe Token: SeProfSingleProcessPrivilege 2680 WMIC.exe Token: SeIncBasePriorityPrivilege 2680 WMIC.exe Token: SeCreatePagefilePrivilege 2680 WMIC.exe Token: SeBackupPrivilege 2680 WMIC.exe Token: SeRestorePrivilege 2680 WMIC.exe Token: SeShutdownPrivilege 2680 WMIC.exe Token: SeDebugPrivilege 2680 WMIC.exe Token: SeSystemEnvironmentPrivilege 2680 WMIC.exe Token: SeRemoteShutdownPrivilege 2680 WMIC.exe Token: SeUndockPrivilege 2680 WMIC.exe Token: SeManageVolumePrivilege 2680 WMIC.exe Token: 33 2680 WMIC.exe Token: 34 2680 WMIC.exe Token: 35 2680 WMIC.exe Token: SeBackupPrivilege 596 wbengine.exe Token: SeRestorePrivilege 596 wbengine.exe Token: SeSecurityPrivilege 596 wbengine.exe -
Suspicious use of WriteProcessMemory 30 IoCs
description pid Process procid_target PID 1292 wrote to memory of 2484 1292 2024-10-28_98011861dd4642548822c5638e7c9ea6_destroyer_wannacry.exe 30 PID 1292 wrote to memory of 2484 1292 2024-10-28_98011861dd4642548822c5638e7c9ea6_destroyer_wannacry.exe 30 PID 1292 wrote to memory of 2484 1292 2024-10-28_98011861dd4642548822c5638e7c9ea6_destroyer_wannacry.exe 30 PID 2484 wrote to memory of 2460 2484 Ransomware-Builder.exe 31 PID 2484 wrote to memory of 2460 2484 Ransomware-Builder.exe 31 PID 2484 wrote to memory of 2460 2484 Ransomware-Builder.exe 31 PID 2460 wrote to memory of 2876 2460 cmd.exe 33 PID 2460 wrote to memory of 2876 2460 cmd.exe 33 PID 2460 wrote to memory of 2876 2460 cmd.exe 33 PID 2460 wrote to memory of 2680 2460 cmd.exe 36 PID 2460 wrote to memory of 2680 2460 cmd.exe 36 PID 2460 wrote to memory of 2680 2460 cmd.exe 36 PID 2484 wrote to memory of 1392 2484 Ransomware-Builder.exe 38 PID 2484 wrote to memory of 1392 2484 Ransomware-Builder.exe 38 PID 2484 wrote to memory of 1392 2484 Ransomware-Builder.exe 38 PID 1392 wrote to memory of 336 1392 cmd.exe 40 PID 1392 wrote to memory of 336 1392 cmd.exe 40 PID 1392 wrote to memory of 336 1392 cmd.exe 40 PID 1392 wrote to memory of 1764 1392 cmd.exe 41 PID 1392 wrote to memory of 1764 1392 cmd.exe 41 PID 1392 wrote to memory of 1764 1392 cmd.exe 41 PID 2484 wrote to memory of 1092 2484 Ransomware-Builder.exe 42 PID 2484 wrote to memory of 1092 2484 Ransomware-Builder.exe 42 PID 2484 wrote to memory of 1092 2484 Ransomware-Builder.exe 42 PID 1092 wrote to memory of 1964 1092 cmd.exe 44 PID 1092 wrote to memory of 1964 1092 cmd.exe 44 PID 1092 wrote to memory of 1964 1092 cmd.exe 44 PID 2484 wrote to memory of 1536 2484 Ransomware-Builder.exe 49 PID 2484 wrote to memory of 1536 2484 Ransomware-Builder.exe 49 PID 2484 wrote to memory of 1536 2484 Ransomware-Builder.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\2024-10-28_98011861dd4642548822c5638e7c9ea6_destroyer_wannacry.exe"C:\Users\Admin\AppData\Local\Temp\2024-10-28_98011861dd4642548822c5638e7c9ea6_destroyer_wannacry.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1292 -
C:\Users\Admin\AppData\Roaming\Ransomware-Builder.exe"C:\Users\Admin\AppData\Roaming\Ransomware-Builder.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:2484 -
C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" /C vssadmin delete shadows /all /quiet & wmic shadowcopy delete3⤵
- Suspicious use of WriteProcessMemory
PID:2460 -
C:\Windows\system32\vssadmin.exevssadmin delete shadows /all /quiet4⤵
- Interacts with shadow copies
PID:2876
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C:\Windows\System32\Wbem\WMIC.exewmic shadowcopy delete4⤵
- Suspicious use of AdjustPrivilegeToken
PID:2680
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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:1392 -
C:\Windows\system32\bcdedit.exebcdedit /set {default} bootstatuspolicy ignoreallfailures4⤵
- Modifies boot configuration data using bcdedit
PID:336
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C:\Windows\system32\bcdedit.exebcdedit /set {default} recoveryenabled no4⤵
- Modifies boot configuration data using bcdedit
PID:1764
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C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" /C wbadmin delete catalog -quiet3⤵
- Suspicious use of WriteProcessMemory
PID:1092 -
C:\Windows\system32\wbadmin.exewbadmin delete catalog -quiet4⤵
- Deletes backup catalog
PID:1964
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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:1536
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C:\Windows\system32\vssvc.exeC:\Windows\system32\vssvc.exe1⤵
- Suspicious use of AdjustPrivilegeToken
PID:2816
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C:\Windows\system32\wbengine.exe"C:\Windows\system32\wbengine.exe"1⤵
- Suspicious use of AdjustPrivilegeToken
PID:596
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C:\Windows\System32\vdsldr.exeC:\Windows\System32\vdsldr.exe -Embedding1⤵PID:552
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C:\Windows\System32\vds.exeC:\Windows\System32\vds.exe1⤵PID:2992
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
MD598011861dd4642548822c5638e7c9ea6
SHA19084b3fd1166451a8380a9d00294cc7dafbef923
SHA256093a58d6f3473fe31b0a10238a202f1abb9586109bba2d3db1690ddfeec896e5
SHA5126f54e4a69ab351469943e5ddac3259ab55b7351a2d75fc4857262eedd8c4f4b2d05e16ba30e6c0e84d8d91d731b4ad19711a91a9a3f4bccb86d1b2bd7bc4db20
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Filesize
1B
MD5d1457b72c3fb323a2671125aef3eab5d
SHA15bab61eb53176449e25c2c82f172b82cb13ffb9d
SHA2568a8de823d5ed3e12746a62ef169bcf372be0ca44f0a1236abc35df05d96928e1
SHA512ca63c07ad35d8c9fb0c92d6146759b122d4ec5d3f67ebe2f30ddb69f9e6c9fd3bf31a5e408b08f1d4d9cd68120cced9e57f010bef3cde97653fed5470da7d1a0