Analysis
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max time kernel
118s -
max time network
119s -
platform
windows7_x64 -
resource
win7-20240220-en -
resource tags
arch:x64arch:x86image:win7-20240220-enlocale:en-usos:windows7-x64system -
submitted
16-05-2024 06:58
Behavioral task
behavioral1
Sample
2024-05-16_7ac66cd243c6782f8e11680398bf7fc9_destroyer_wannacry.exe
Resource
win7-20240220-en
Behavioral task
behavioral2
Sample
2024-05-16_7ac66cd243c6782f8e11680398bf7fc9_destroyer_wannacry.exe
Resource
win10v2004-20240508-en
General
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Target
2024-05-16_7ac66cd243c6782f8e11680398bf7fc9_destroyer_wannacry.exe
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Size
31KB
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MD5
7ac66cd243c6782f8e11680398bf7fc9
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SHA1
8a64f2ae6b6529f761a606eca390f28e958564ff
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SHA256
1d697c827da729fceea49235066a4a711f473d9b9ad04971977db97aa0b7bd34
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SHA512
ddc59db33aa6d9b5fdbc78cb24de64ec0d9a4de9681dc55ac702cdf917f27888c17cf7a7e837e74eacadaf6b4e35df80661849026868bf7e8744b29ffaddc25c
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SSDEEP
384:ytWZPzzxAm1vIJ5ZQomFVdeOeTbzyvQC/JpcllOy5o91fgnpu82vm:X7zxAmWDuXdreKQuJWho9CA82u
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/2172-1-0x0000000001050000-0x000000000105E000-memory.dmp family_chaos behavioral1/files/0x000a000000015cb1-6.dat family_chaos behavioral1/memory/2544-8-0x0000000000CE0000-0x0000000000CEE000-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/2172-1-0x0000000001050000-0x000000000105E000-memory.dmp INDICATOR_SUSPICIOUS_GENRansomware behavioral1/files/0x000a000000015cb1-6.dat INDICATOR_SUSPICIOUS_GENRansomware behavioral1/memory/2544-8-0x0000000000CE0000-0x0000000000CEE000-memory.dmp INDICATOR_SUSPICIOUS_GENRansomware -
Detects executables containing many references to VEEAM. Observed in ransomware 3 IoCs
resource yara_rule behavioral1/memory/2172-1-0x0000000001050000-0x000000000105E000-memory.dmp INDICATOR_SUSPICOUS_EXE_References_VEEAM behavioral1/files/0x000a000000015cb1-6.dat INDICATOR_SUSPICOUS_EXE_References_VEEAM behavioral1/memory/2544-8-0x0000000000CE0000-0x0000000000CEE000-memory.dmp INDICATOR_SUSPICOUS_EXE_References_VEEAM -
Modifies boot configuration data using bcdedit 1 TTPs 2 IoCs
pid Process 1580 bcdedit.exe 1028 bcdedit.exe -
pid Process 2304 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 2544 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\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\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\Accessories\System Tools\Desktop.ini svchost.exe File opened for modification C:\Users\Admin\Favorites\Links\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\Contacts\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\All Users\Microsoft\Windows\Start Menu\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\Public\Desktop\desktop.ini svchost.exe File opened for modification C:\Users\Public\Music\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\Temporary Internet Files\Content.IE5\OQAMAYIL\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Documents\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\All Users\Microsoft\Windows\Start Menu\Programs\Games\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\Feeds Cache\NNULH633\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\Videos\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\M221U1AY\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\Default\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Accessories\Accessibility\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\Favorites\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\desktop.ini svchost.exe File opened for modification C:\Users\Public\Libraries\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Pictures\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Searches\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\Feeds Cache\KEQD8ZAD\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\Roaming\Microsoft\Windows\Recent\desktop.ini svchost.exe File opened for modification C:\Users\Public\desktop.ini svchost.exe File opened for modification C:\Users\Public\Music\Sample Music\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\Libraries\desktop.ini svchost.exe File opened for modification C:\Users\Public\Pictures\Sample 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\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\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\Default\AppData\Roaming\Microsoft\Windows\SendTo\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\Roaming\Microsoft\Internet Explorer\Quick Launch\User Pinned\TaskBar\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\Public\Documents\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\Feeds Cache\66RFTKYZ\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\AppData\Local\Microsoft\Windows Mail\Stationery\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\Accessories\Accessibility\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\5VY10BSW\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\Admin\AppData\Roaming\Microsoft\Windows\SendTo\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\Roaming\Microsoft\Windows\Start Menu\Programs\Maintenance\Desktop.ini svchost.exe File opened for modification C:\Users\Admin\Music\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 2512 vssadmin.exe -
Opens file in notepad (likely ransom note) 1 IoCs
pid Process 592 NOTEPAD.EXE -
Suspicious behavior: AddClipboardFormatListener 1 IoCs
pid Process 2544 svchost.exe -
Suspicious behavior: EnumeratesProcesses 5 IoCs
pid Process 2172 2024-05-16_7ac66cd243c6782f8e11680398bf7fc9_destroyer_wannacry.exe 2172 2024-05-16_7ac66cd243c6782f8e11680398bf7fc9_destroyer_wannacry.exe 2544 svchost.exe 2544 svchost.exe 2544 svchost.exe -
Suspicious use of AdjustPrivilegeToken 48 IoCs
description pid Process Token: SeDebugPrivilege 2172 2024-05-16_7ac66cd243c6782f8e11680398bf7fc9_destroyer_wannacry.exe Token: SeDebugPrivilege 2544 svchost.exe Token: SeBackupPrivilege 2696 vssvc.exe Token: SeRestorePrivilege 2696 vssvc.exe Token: SeAuditPrivilege 2696 vssvc.exe Token: SeIncreaseQuotaPrivilege 1760 WMIC.exe Token: SeSecurityPrivilege 1760 WMIC.exe Token: SeTakeOwnershipPrivilege 1760 WMIC.exe Token: SeLoadDriverPrivilege 1760 WMIC.exe Token: SeSystemProfilePrivilege 1760 WMIC.exe Token: SeSystemtimePrivilege 1760 WMIC.exe Token: SeProfSingleProcessPrivilege 1760 WMIC.exe Token: SeIncBasePriorityPrivilege 1760 WMIC.exe Token: SeCreatePagefilePrivilege 1760 WMIC.exe Token: SeBackupPrivilege 1760 WMIC.exe Token: SeRestorePrivilege 1760 WMIC.exe Token: SeShutdownPrivilege 1760 WMIC.exe Token: SeDebugPrivilege 1760 WMIC.exe Token: SeSystemEnvironmentPrivilege 1760 WMIC.exe Token: SeRemoteShutdownPrivilege 1760 WMIC.exe Token: SeUndockPrivilege 1760 WMIC.exe Token: SeManageVolumePrivilege 1760 WMIC.exe Token: 33 1760 WMIC.exe Token: 34 1760 WMIC.exe Token: 35 1760 WMIC.exe Token: SeIncreaseQuotaPrivilege 1760 WMIC.exe Token: SeSecurityPrivilege 1760 WMIC.exe Token: SeTakeOwnershipPrivilege 1760 WMIC.exe Token: SeLoadDriverPrivilege 1760 WMIC.exe Token: SeSystemProfilePrivilege 1760 WMIC.exe Token: SeSystemtimePrivilege 1760 WMIC.exe Token: SeProfSingleProcessPrivilege 1760 WMIC.exe Token: SeIncBasePriorityPrivilege 1760 WMIC.exe Token: SeCreatePagefilePrivilege 1760 WMIC.exe Token: SeBackupPrivilege 1760 WMIC.exe Token: SeRestorePrivilege 1760 WMIC.exe Token: SeShutdownPrivilege 1760 WMIC.exe Token: SeDebugPrivilege 1760 WMIC.exe Token: SeSystemEnvironmentPrivilege 1760 WMIC.exe Token: SeRemoteShutdownPrivilege 1760 WMIC.exe Token: SeUndockPrivilege 1760 WMIC.exe Token: SeManageVolumePrivilege 1760 WMIC.exe Token: 33 1760 WMIC.exe Token: 34 1760 WMIC.exe Token: 35 1760 WMIC.exe Token: SeBackupPrivilege 2188 wbengine.exe Token: SeRestorePrivilege 2188 wbengine.exe Token: SeSecurityPrivilege 2188 wbengine.exe -
Suspicious use of WriteProcessMemory 30 IoCs
description pid Process procid_target PID 2172 wrote to memory of 2544 2172 2024-05-16_7ac66cd243c6782f8e11680398bf7fc9_destroyer_wannacry.exe 28 PID 2172 wrote to memory of 2544 2172 2024-05-16_7ac66cd243c6782f8e11680398bf7fc9_destroyer_wannacry.exe 28 PID 2172 wrote to memory of 2544 2172 2024-05-16_7ac66cd243c6782f8e11680398bf7fc9_destroyer_wannacry.exe 28 PID 2544 wrote to memory of 2096 2544 svchost.exe 29 PID 2544 wrote to memory of 2096 2544 svchost.exe 29 PID 2544 wrote to memory of 2096 2544 svchost.exe 29 PID 2096 wrote to memory of 2512 2096 cmd.exe 31 PID 2096 wrote to memory of 2512 2096 cmd.exe 31 PID 2096 wrote to memory of 2512 2096 cmd.exe 31 PID 2096 wrote to memory of 1760 2096 cmd.exe 34 PID 2096 wrote to memory of 1760 2096 cmd.exe 34 PID 2096 wrote to memory of 1760 2096 cmd.exe 34 PID 2544 wrote to memory of 1460 2544 svchost.exe 36 PID 2544 wrote to memory of 1460 2544 svchost.exe 36 PID 2544 wrote to memory of 1460 2544 svchost.exe 36 PID 1460 wrote to memory of 1580 1460 cmd.exe 38 PID 1460 wrote to memory of 1580 1460 cmd.exe 38 PID 1460 wrote to memory of 1580 1460 cmd.exe 38 PID 1460 wrote to memory of 1028 1460 cmd.exe 39 PID 1460 wrote to memory of 1028 1460 cmd.exe 39 PID 1460 wrote to memory of 1028 1460 cmd.exe 39 PID 2544 wrote to memory of 1216 2544 svchost.exe 40 PID 2544 wrote to memory of 1216 2544 svchost.exe 40 PID 2544 wrote to memory of 1216 2544 svchost.exe 40 PID 1216 wrote to memory of 2304 1216 cmd.exe 42 PID 1216 wrote to memory of 2304 1216 cmd.exe 42 PID 1216 wrote to memory of 2304 1216 cmd.exe 42 PID 2544 wrote to memory of 592 2544 svchost.exe 48 PID 2544 wrote to memory of 592 2544 svchost.exe 48 PID 2544 wrote to memory of 592 2544 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\2024-05-16_7ac66cd243c6782f8e11680398bf7fc9_destroyer_wannacry.exe"C:\Users\Admin\AppData\Local\Temp\2024-05-16_7ac66cd243c6782f8e11680398bf7fc9_destroyer_wannacry.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2172 -
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:2544 -
C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" /C vssadmin delete shadows /all /quiet & wmic shadowcopy delete3⤵
- Suspicious use of WriteProcessMemory
PID:2096 -
C:\Windows\system32\vssadmin.exevssadmin delete shadows /all /quiet4⤵
- Interacts with shadow copies
PID:2512
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C:\Windows\System32\Wbem\WMIC.exewmic shadowcopy delete4⤵
- Suspicious use of AdjustPrivilegeToken
PID:1760
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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:1460 -
C:\Windows\system32\bcdedit.exebcdedit /set {default} bootstatuspolicy ignoreallfailures4⤵
- Modifies boot configuration data using bcdedit
PID:1580
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C:\Windows\system32\bcdedit.exebcdedit /set {default} recoveryenabled no4⤵
- Modifies boot configuration data using bcdedit
PID:1028
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C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" /C wbadmin delete catalog -quiet3⤵
- Suspicious use of WriteProcessMemory
PID:1216 -
C:\Windows\system32\wbadmin.exewbadmin delete catalog -quiet4⤵
- Deletes backup catalog
PID:2304
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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:592
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C:\Windows\system32\vssvc.exeC:\Windows\system32\vssvc.exe1⤵
- Suspicious use of AdjustPrivilegeToken
PID:2696
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C:\Windows\system32\wbengine.exe"C:\Windows\system32\wbengine.exe"1⤵
- Suspicious use of AdjustPrivilegeToken
PID:2188
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C:\Windows\System32\vdsldr.exeC:\Windows\System32\vdsldr.exe -Embedding1⤵PID:1568
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C:\Windows\System32\vds.exeC:\Windows\System32\vds.exe1⤵PID:1576
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
31KB
MD57ac66cd243c6782f8e11680398bf7fc9
SHA18a64f2ae6b6529f761a606eca390f28e958564ff
SHA2561d697c827da729fceea49235066a4a711f473d9b9ad04971977db97aa0b7bd34
SHA512ddc59db33aa6d9b5fdbc78cb24de64ec0d9a4de9681dc55ac702cdf917f27888c17cf7a7e837e74eacadaf6b4e35df80661849026868bf7e8744b29ffaddc25c
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Filesize
1B
MD5d1457b72c3fb323a2671125aef3eab5d
SHA15bab61eb53176449e25c2c82f172b82cb13ffb9d
SHA2568a8de823d5ed3e12746a62ef169bcf372be0ca44f0a1236abc35df05d96928e1
SHA512ca63c07ad35d8c9fb0c92d6146759b122d4ec5d3f67ebe2f30ddb69f9e6c9fd3bf31a5e408b08f1d4d9cd68120cced9e57f010bef3cde97653fed5470da7d1a0