Analysis
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max time kernel
120s -
max time network
120s -
platform
windows7_x64 -
resource
win7-20240220-en -
resource tags
arch:x64arch:x86image:win7-20240220-enlocale:en-usos:windows7-x64system -
submitted
11-06-2024 13:25
Behavioral task
behavioral1
Sample
2024-06-11_950390aae76e8e8cf106781bcfb90592_destroyer_wannacry.exe
Resource
win7-20240220-en
Behavioral task
behavioral2
Sample
2024-06-11_950390aae76e8e8cf106781bcfb90592_destroyer_wannacry.exe
Resource
win10v2004-20240508-en
General
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Target
2024-06-11_950390aae76e8e8cf106781bcfb90592_destroyer_wannacry.exe
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Size
27KB
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MD5
950390aae76e8e8cf106781bcfb90592
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SHA1
9aff513910ae95927a84589b8af71a3fd926ca8d
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SHA256
fa0e48417ce0bf4ef7421147b6741a8ffb67150021d44fbc2aace48dcf5d18e5
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SHA512
591213a382d96e49ce7a0f8d6a693deb00a5f7e1e1c0d87a3e88bf0f4d039cf7e38c68f14891e31a95e4c40c09038a871b3f4660ef4224ae723342800bb324f7
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SSDEEP
384:/KFfzPBaG5d3qQ19F6dl0fwwDxrmM1bUp8BU1x:/MrPBaJw3ul8xK4bUq+1x
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/2360-1-0x0000000001170000-0x000000000117E000-memory.dmp family_chaos behavioral1/files/0x000c00000001342e-6.dat family_chaos behavioral1/memory/2176-8-0x0000000000F70000-0x0000000000F7E000-memory.dmp family_chaos -
Deletes shadow copies 3 TTPs
Ransomware often targets backup files to inhibit system recovery.
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Detects command variations typically used by ransomware 3 IoCs
resource yara_rule behavioral1/memory/2360-1-0x0000000001170000-0x000000000117E000-memory.dmp INDICATOR_SUSPICIOUS_GENRansomware behavioral1/files/0x000c00000001342e-6.dat INDICATOR_SUSPICIOUS_GENRansomware behavioral1/memory/2176-8-0x0000000000F70000-0x0000000000F7E000-memory.dmp INDICATOR_SUSPICIOUS_GENRansomware -
Detects executables containing many references to VEEAM. Observed in ransomware 3 IoCs
resource yara_rule behavioral1/memory/2360-1-0x0000000001170000-0x000000000117E000-memory.dmp INDICATOR_SUSPICOUS_EXE_References_VEEAM behavioral1/files/0x000c00000001342e-6.dat INDICATOR_SUSPICOUS_EXE_References_VEEAM behavioral1/memory/2176-8-0x0000000000F70000-0x0000000000F7E000-memory.dmp INDICATOR_SUSPICOUS_EXE_References_VEEAM -
Detects executables packed with ConfuserEx Mod 3 IoCs
resource yara_rule behavioral1/memory/2360-1-0x0000000001170000-0x000000000117E000-memory.dmp INDICATOR_EXE_Packed_ConfuserEx behavioral1/files/0x000c00000001342e-6.dat INDICATOR_EXE_Packed_ConfuserEx behavioral1/memory/2176-8-0x0000000000F70000-0x0000000000F7E000-memory.dmp INDICATOR_EXE_Packed_ConfuserEx -
Modifies boot configuration data using bcdedit 1 TTPs 2 IoCs
pid Process 2796 bcdedit.exe 2816 bcdedit.exe -
pid Process 2936 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 2176 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-1-5-21-2721934792-624042501-2768869379-1000\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\Feeds Cache\NNULH633\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\All Users\Microsoft\Windows\Start Menu\Programs\Maintenance\Desktop.ini svchost.exe File opened for modification C:\Users\Public\Pictures\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Videos\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\Windows\Temporary Internet Files\Content.IE5\HL1JTUOY\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\Saved Games\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\Searches\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Favorites\Links\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\Libraries\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\Accessories\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\Public\Videos\Sample Videos\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\Contacts\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\Music\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Pictures\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\Windows\Temporary Internet Files\Content.IE5\CM2WAJS5\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\Accessories\Windows PowerShell\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\Default\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\Startup\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\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Favorites\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\Windows\Start Menu\Programs\Maintenance\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\Feeds Cache\KEQD8ZAD\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\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\Local\Microsoft\Feeds Cache\desktop.ini svchost.exe File opened for modification C:\Users\Admin\AppData\Local\Microsoft\Feeds Cache\66RFTKYZ\desktop.ini svchost.exe File opened for modification C:\Users\Public\Documents\desktop.ini svchost.exe File opened for modification C:\Users\Admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.IE5\5VY10BSW\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 F:\$RECYCLE.BIN\S-1-5-21-2721934792-624042501-2768869379-1000\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\Temporary Internet Files\Content.IE5\OQAMAYIL\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\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\Admin\Documents\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Downloads\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\All Users\Microsoft\Windows\Start Menu\Programs\Accessories\Tablet PC\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\Recorded TV\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\Accessories\System Tools\Desktop.ini svchost.exe File opened for modification C:\Users\Admin\AppData\Local\Microsoft\Feeds Cache\M221U1AY\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\Recent\desktop.ini svchost.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Accessories\Accessibility\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 2 TTPs 1 IoCs
Shadow copies are often targeted by ransomware to inhibit system recovery.
pid Process 2608 vssadmin.exe -
Opens file in notepad (likely ransom note) 1 IoCs
pid Process 1504 NOTEPAD.EXE -
Suspicious behavior: AddClipboardFormatListener 1 IoCs
pid Process 2176 svchost.exe -
Suspicious behavior: EnumeratesProcesses 5 IoCs
pid Process 2360 2024-06-11_950390aae76e8e8cf106781bcfb90592_destroyer_wannacry.exe 2360 2024-06-11_950390aae76e8e8cf106781bcfb90592_destroyer_wannacry.exe 2176 svchost.exe 2176 svchost.exe 2176 svchost.exe -
Suspicious use of AdjustPrivilegeToken 48 IoCs
description pid Process Token: SeDebugPrivilege 2360 2024-06-11_950390aae76e8e8cf106781bcfb90592_destroyer_wannacry.exe Token: SeDebugPrivilege 2176 svchost.exe Token: SeBackupPrivilege 2844 vssvc.exe Token: SeRestorePrivilege 2844 vssvc.exe Token: SeAuditPrivilege 2844 vssvc.exe Token: SeIncreaseQuotaPrivilege 1128 WMIC.exe Token: SeSecurityPrivilege 1128 WMIC.exe Token: SeTakeOwnershipPrivilege 1128 WMIC.exe Token: SeLoadDriverPrivilege 1128 WMIC.exe Token: SeSystemProfilePrivilege 1128 WMIC.exe Token: SeSystemtimePrivilege 1128 WMIC.exe Token: SeProfSingleProcessPrivilege 1128 WMIC.exe Token: SeIncBasePriorityPrivilege 1128 WMIC.exe Token: SeCreatePagefilePrivilege 1128 WMIC.exe Token: SeBackupPrivilege 1128 WMIC.exe Token: SeRestorePrivilege 1128 WMIC.exe Token: SeShutdownPrivilege 1128 WMIC.exe Token: SeDebugPrivilege 1128 WMIC.exe Token: SeSystemEnvironmentPrivilege 1128 WMIC.exe Token: SeRemoteShutdownPrivilege 1128 WMIC.exe Token: SeUndockPrivilege 1128 WMIC.exe Token: SeManageVolumePrivilege 1128 WMIC.exe Token: 33 1128 WMIC.exe Token: 34 1128 WMIC.exe Token: 35 1128 WMIC.exe Token: SeIncreaseQuotaPrivilege 1128 WMIC.exe Token: SeSecurityPrivilege 1128 WMIC.exe Token: SeTakeOwnershipPrivilege 1128 WMIC.exe Token: SeLoadDriverPrivilege 1128 WMIC.exe Token: SeSystemProfilePrivilege 1128 WMIC.exe Token: SeSystemtimePrivilege 1128 WMIC.exe Token: SeProfSingleProcessPrivilege 1128 WMIC.exe Token: SeIncBasePriorityPrivilege 1128 WMIC.exe Token: SeCreatePagefilePrivilege 1128 WMIC.exe Token: SeBackupPrivilege 1128 WMIC.exe Token: SeRestorePrivilege 1128 WMIC.exe Token: SeShutdownPrivilege 1128 WMIC.exe Token: SeDebugPrivilege 1128 WMIC.exe Token: SeSystemEnvironmentPrivilege 1128 WMIC.exe Token: SeRemoteShutdownPrivilege 1128 WMIC.exe Token: SeUndockPrivilege 1128 WMIC.exe Token: SeManageVolumePrivilege 1128 WMIC.exe Token: 33 1128 WMIC.exe Token: 34 1128 WMIC.exe Token: 35 1128 WMIC.exe Token: SeBackupPrivilege 1856 wbengine.exe Token: SeRestorePrivilege 1856 wbengine.exe Token: SeSecurityPrivilege 1856 wbengine.exe -
Suspicious use of WriteProcessMemory 30 IoCs
description pid Process procid_target PID 2360 wrote to memory of 2176 2360 2024-06-11_950390aae76e8e8cf106781bcfb90592_destroyer_wannacry.exe 28 PID 2360 wrote to memory of 2176 2360 2024-06-11_950390aae76e8e8cf106781bcfb90592_destroyer_wannacry.exe 28 PID 2360 wrote to memory of 2176 2360 2024-06-11_950390aae76e8e8cf106781bcfb90592_destroyer_wannacry.exe 28 PID 2176 wrote to memory of 2604 2176 svchost.exe 29 PID 2176 wrote to memory of 2604 2176 svchost.exe 29 PID 2176 wrote to memory of 2604 2176 svchost.exe 29 PID 2604 wrote to memory of 2608 2604 cmd.exe 31 PID 2604 wrote to memory of 2608 2604 cmd.exe 31 PID 2604 wrote to memory of 2608 2604 cmd.exe 31 PID 2604 wrote to memory of 1128 2604 cmd.exe 34 PID 2604 wrote to memory of 1128 2604 cmd.exe 34 PID 2604 wrote to memory of 1128 2604 cmd.exe 34 PID 2176 wrote to memory of 2772 2176 svchost.exe 36 PID 2176 wrote to memory of 2772 2176 svchost.exe 36 PID 2176 wrote to memory of 2772 2176 svchost.exe 36 PID 2772 wrote to memory of 2796 2772 cmd.exe 38 PID 2772 wrote to memory of 2796 2772 cmd.exe 38 PID 2772 wrote to memory of 2796 2772 cmd.exe 38 PID 2772 wrote to memory of 2816 2772 cmd.exe 39 PID 2772 wrote to memory of 2816 2772 cmd.exe 39 PID 2772 wrote to memory of 2816 2772 cmd.exe 39 PID 2176 wrote to memory of 2820 2176 svchost.exe 40 PID 2176 wrote to memory of 2820 2176 svchost.exe 40 PID 2176 wrote to memory of 2820 2176 svchost.exe 40 PID 2820 wrote to memory of 2936 2820 cmd.exe 42 PID 2820 wrote to memory of 2936 2820 cmd.exe 42 PID 2820 wrote to memory of 2936 2820 cmd.exe 42 PID 2176 wrote to memory of 1504 2176 svchost.exe 48 PID 2176 wrote to memory of 1504 2176 svchost.exe 48 PID 2176 wrote to memory of 1504 2176 svchost.exe 48 -
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\2024-06-11_950390aae76e8e8cf106781bcfb90592_destroyer_wannacry.exe"C:\Users\Admin\AppData\Local\Temp\2024-06-11_950390aae76e8e8cf106781bcfb90592_destroyer_wannacry.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2360 -
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:2176 -
C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" /C vssadmin delete shadows /all /quiet & wmic shadowcopy delete3⤵
- Suspicious use of WriteProcessMemory
PID:2604 -
C:\Windows\system32\vssadmin.exevssadmin delete shadows /all /quiet4⤵
- Interacts with shadow copies
PID:2608
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C:\Windows\System32\Wbem\WMIC.exewmic shadowcopy delete4⤵
- Suspicious use of AdjustPrivilegeToken
PID:1128
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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:2772 -
C:\Windows\system32\bcdedit.exebcdedit /set {default} bootstatuspolicy ignoreallfailures4⤵
- Modifies boot configuration data using bcdedit
PID:2796
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C:\Windows\system32\bcdedit.exebcdedit /set {default} recoveryenabled no4⤵
- Modifies boot configuration data using bcdedit
PID:2816
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C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" /C wbadmin delete catalog -quiet3⤵
- Suspicious use of WriteProcessMemory
PID:2820 -
C:\Windows\system32\wbadmin.exewbadmin delete catalog -quiet4⤵
- Deletes backup catalog
PID:2936
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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:1504
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C:\Windows\system32\vssvc.exeC:\Windows\system32\vssvc.exe1⤵
- Suspicious use of AdjustPrivilegeToken
PID:2844
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C:\Windows\system32\wbengine.exe"C:\Windows\system32\wbengine.exe"1⤵
- Suspicious use of AdjustPrivilegeToken
PID:1856
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C:\Windows\System32\vdsldr.exeC:\Windows\System32\vdsldr.exe -Embedding1⤵PID:2332
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C:\Windows\System32\vds.exeC:\Windows\System32\vds.exe1⤵PID:1580
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
MD5950390aae76e8e8cf106781bcfb90592
SHA19aff513910ae95927a84589b8af71a3fd926ca8d
SHA256fa0e48417ce0bf4ef7421147b6741a8ffb67150021d44fbc2aace48dcf5d18e5
SHA512591213a382d96e49ce7a0f8d6a693deb00a5f7e1e1c0d87a3e88bf0f4d039cf7e38c68f14891e31a95e4c40c09038a871b3f4660ef4224ae723342800bb324f7
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Filesize
1B
MD5d1457b72c3fb323a2671125aef3eab5d
SHA15bab61eb53176449e25c2c82f172b82cb13ffb9d
SHA2568a8de823d5ed3e12746a62ef169bcf372be0ca44f0a1236abc35df05d96928e1
SHA512ca63c07ad35d8c9fb0c92d6146759b122d4ec5d3f67ebe2f30ddb69f9e6c9fd3bf31a5e408b08f1d4d9cd68120cced9e57f010bef3cde97653fed5470da7d1a0