Analysis
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max time kernel
121s -
max time network
125s -
platform
windows7_x64 -
resource
win7-20240508-en -
resource tags
arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system -
submitted
10-05-2024 00:47
Behavioral task
behavioral1
Sample
2024-05-10_a87448407f580aca26856668b1421ca3_destroyer_wannacry.exe
Resource
win7-20240508-en
Behavioral task
behavioral2
Sample
2024-05-10_a87448407f580aca26856668b1421ca3_destroyer_wannacry.exe
Resource
win10v2004-20240426-en
General
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Target
2024-05-10_a87448407f580aca26856668b1421ca3_destroyer_wannacry.exe
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Size
27KB
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MD5
a87448407f580aca26856668b1421ca3
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SHA1
ea453ed748d7b59f27e6ccbe7a3c47982b8d831a
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SHA256
018699d7f48805c5eec9236d386c71883a3bb78cc29eec6a354784547672c267
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SHA512
9e0e24f0aef6aaf7a13cbb646084484f7eaf80f83eb2390e3764cd28982ec5d4148291e14c617f6fe38fe2eb5f8dbae3a45770a7d0919860d09c582e02743233
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SSDEEP
384:QtWZPzzxAm1vqD8Sks4grPiEDNBYfpQlQ/xsV7LlJqGNl8Oy5o91oc882vy:l7zxAmu8Sn4LEZVqDho9aP826
Malware Config
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/1384-1-0x0000000000B80000-0x0000000000B8E000-memory.dmp family_chaos behavioral1/files/0x000b000000012272-7.dat family_chaos behavioral1/memory/2356-8-0x0000000000270000-0x000000000027E000-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/1384-1-0x0000000000B80000-0x0000000000B8E000-memory.dmp INDICATOR_SUSPICIOUS_GENRansomware behavioral1/files/0x000b000000012272-7.dat INDICATOR_SUSPICIOUS_GENRansomware behavioral1/memory/2356-8-0x0000000000270000-0x000000000027E000-memory.dmp INDICATOR_SUSPICIOUS_GENRansomware -
Detects executables containing many references to VEEAM. Observed in ransomware 3 IoCs
resource yara_rule behavioral1/memory/1384-1-0x0000000000B80000-0x0000000000B8E000-memory.dmp INDICATOR_SUSPICOUS_EXE_References_VEEAM behavioral1/files/0x000b000000012272-7.dat INDICATOR_SUSPICOUS_EXE_References_VEEAM behavioral1/memory/2356-8-0x0000000000270000-0x000000000027E000-memory.dmp INDICATOR_SUSPICOUS_EXE_References_VEEAM -
Modifies boot configuration data using bcdedit 1 TTPs 2 IoCs
pid Process 2520 bcdedit.exe 1664 bcdedit.exe -
Renames multiple (170) files with added filename extension
This suggests ransomware activity of encrypting all the files on the system.
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pid Process 2712 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\unlock.txt svchost.exe -
Executes dropped EXE 1 IoCs
pid Process 2356 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-1-5-21-3691908287-3775019229-3534252667-1000\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\Public\Recorded TV\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\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\IS6UL1FQ\desktop.ini svchost.exe File opened for modification C:\Users\Admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.IE5\SK0QRJKA\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Desktop\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\Accessories\Accessibility\Desktop.ini svchost.exe File opened for modification C:\Users\Admin\Links\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Saved Games\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Searches\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\Admin\Music\desktop.ini svchost.exe File opened for modification C:\Users\Admin\AppData\Local\Microsoft\Feeds Cache\YR1SPOMQ\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\Internet Explorer\Quick Launch\User Pinned\TaskBar\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Videos\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\Programs\Accessories\Accessibility\Desktop.ini svchost.exe File opened for modification C:\Users\Admin\AppData\Local\Microsoft\Feeds Cache\SZUP0XFR\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\Public\desktop.ini svchost.exe File opened for modification C:\Users\Public\Documents\desktop.ini svchost.exe File opened for modification C:\Users\Public\Downloads\desktop.ini svchost.exe File opened for modification C:\Users\Public\Libraries\desktop.ini svchost.exe File opened for modification C:\Users\Admin\AppData\Local\Microsoft\Feeds Cache\YK6DYF6H\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\N2LZJYLW\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\Internet Explorer\Quick Launch\desktop.ini svchost.exe File opened for modification F:\$RECYCLE.BIN\S-1-5-21-3691908287-3775019229-3534252667-1000\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\Libraries\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\Videos\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\Roaming\Microsoft\Windows\Start Menu\Programs\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Documents\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Favorites\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\1PJQWC5P\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\Pictures\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\Local\Microsoft\Windows Mail\Stationery\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\Pictures\Sample Pictures\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\Default\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\Content.IE5\4I7XWM59\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\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\All Users\Microsoft\Windows\Start Menu\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\Admin\Contacts\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\Admin\AppData\Local\Microsoft\Windows\History\History.IE5\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\All Users\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 -
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 2684 vssadmin.exe -
Opens file in notepad (likely ransom note) 1 IoCs
pid Process 2140 NOTEPAD.EXE -
Suspicious behavior: AddClipboardFormatListener 1 IoCs
pid Process 2356 svchost.exe -
Suspicious behavior: EnumeratesProcesses 5 IoCs
pid Process 1384 2024-05-10_a87448407f580aca26856668b1421ca3_destroyer_wannacry.exe 1384 2024-05-10_a87448407f580aca26856668b1421ca3_destroyer_wannacry.exe 2356 svchost.exe 2356 svchost.exe 2356 svchost.exe -
Suspicious use of AdjustPrivilegeToken 48 IoCs
description pid Process Token: SeDebugPrivilege 1384 2024-05-10_a87448407f580aca26856668b1421ca3_destroyer_wannacry.exe Token: SeDebugPrivilege 2356 svchost.exe Token: SeBackupPrivilege 2780 vssvc.exe Token: SeRestorePrivilege 2780 vssvc.exe Token: SeAuditPrivilege 2780 vssvc.exe Token: SeIncreaseQuotaPrivilege 2444 WMIC.exe Token: SeSecurityPrivilege 2444 WMIC.exe Token: SeTakeOwnershipPrivilege 2444 WMIC.exe Token: SeLoadDriverPrivilege 2444 WMIC.exe Token: SeSystemProfilePrivilege 2444 WMIC.exe Token: SeSystemtimePrivilege 2444 WMIC.exe Token: SeProfSingleProcessPrivilege 2444 WMIC.exe Token: SeIncBasePriorityPrivilege 2444 WMIC.exe Token: SeCreatePagefilePrivilege 2444 WMIC.exe Token: SeBackupPrivilege 2444 WMIC.exe Token: SeRestorePrivilege 2444 WMIC.exe Token: SeShutdownPrivilege 2444 WMIC.exe Token: SeDebugPrivilege 2444 WMIC.exe Token: SeSystemEnvironmentPrivilege 2444 WMIC.exe Token: SeRemoteShutdownPrivilege 2444 WMIC.exe Token: SeUndockPrivilege 2444 WMIC.exe Token: SeManageVolumePrivilege 2444 WMIC.exe Token: 33 2444 WMIC.exe Token: 34 2444 WMIC.exe Token: 35 2444 WMIC.exe Token: SeIncreaseQuotaPrivilege 2444 WMIC.exe Token: SeSecurityPrivilege 2444 WMIC.exe Token: SeTakeOwnershipPrivilege 2444 WMIC.exe Token: SeLoadDriverPrivilege 2444 WMIC.exe Token: SeSystemProfilePrivilege 2444 WMIC.exe Token: SeSystemtimePrivilege 2444 WMIC.exe Token: SeProfSingleProcessPrivilege 2444 WMIC.exe Token: SeIncBasePriorityPrivilege 2444 WMIC.exe Token: SeCreatePagefilePrivilege 2444 WMIC.exe Token: SeBackupPrivilege 2444 WMIC.exe Token: SeRestorePrivilege 2444 WMIC.exe Token: SeShutdownPrivilege 2444 WMIC.exe Token: SeDebugPrivilege 2444 WMIC.exe Token: SeSystemEnvironmentPrivilege 2444 WMIC.exe Token: SeRemoteShutdownPrivilege 2444 WMIC.exe Token: SeUndockPrivilege 2444 WMIC.exe Token: SeManageVolumePrivilege 2444 WMIC.exe Token: 33 2444 WMIC.exe Token: 34 2444 WMIC.exe Token: 35 2444 WMIC.exe Token: SeBackupPrivilege 764 wbengine.exe Token: SeRestorePrivilege 764 wbengine.exe Token: SeSecurityPrivilege 764 wbengine.exe -
Suspicious use of WriteProcessMemory 30 IoCs
description pid Process procid_target PID 1384 wrote to memory of 2356 1384 2024-05-10_a87448407f580aca26856668b1421ca3_destroyer_wannacry.exe 28 PID 1384 wrote to memory of 2356 1384 2024-05-10_a87448407f580aca26856668b1421ca3_destroyer_wannacry.exe 28 PID 1384 wrote to memory of 2356 1384 2024-05-10_a87448407f580aca26856668b1421ca3_destroyer_wannacry.exe 28 PID 2356 wrote to memory of 2760 2356 svchost.exe 29 PID 2356 wrote to memory of 2760 2356 svchost.exe 29 PID 2356 wrote to memory of 2760 2356 svchost.exe 29 PID 2760 wrote to memory of 2684 2760 cmd.exe 31 PID 2760 wrote to memory of 2684 2760 cmd.exe 31 PID 2760 wrote to memory of 2684 2760 cmd.exe 31 PID 2760 wrote to memory of 2444 2760 cmd.exe 34 PID 2760 wrote to memory of 2444 2760 cmd.exe 34 PID 2760 wrote to memory of 2444 2760 cmd.exe 34 PID 2356 wrote to memory of 1924 2356 svchost.exe 36 PID 2356 wrote to memory of 1924 2356 svchost.exe 36 PID 2356 wrote to memory of 1924 2356 svchost.exe 36 PID 1924 wrote to memory of 1664 1924 cmd.exe 38 PID 1924 wrote to memory of 1664 1924 cmd.exe 38 PID 1924 wrote to memory of 1664 1924 cmd.exe 38 PID 1924 wrote to memory of 2520 1924 cmd.exe 39 PID 1924 wrote to memory of 2520 1924 cmd.exe 39 PID 1924 wrote to memory of 2520 1924 cmd.exe 39 PID 2356 wrote to memory of 1672 2356 svchost.exe 40 PID 2356 wrote to memory of 1672 2356 svchost.exe 40 PID 2356 wrote to memory of 1672 2356 svchost.exe 40 PID 1672 wrote to memory of 2712 1672 cmd.exe 42 PID 1672 wrote to memory of 2712 1672 cmd.exe 42 PID 1672 wrote to memory of 2712 1672 cmd.exe 42 PID 2356 wrote to memory of 2140 2356 svchost.exe 48 PID 2356 wrote to memory of 2140 2356 svchost.exe 48 PID 2356 wrote to memory of 2140 2356 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\2024-05-10_a87448407f580aca26856668b1421ca3_destroyer_wannacry.exe"C:\Users\Admin\AppData\Local\Temp\2024-05-10_a87448407f580aca26856668b1421ca3_destroyer_wannacry.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1384 -
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:2356 -
C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" /C vssadmin delete shadows /all /quiet & wmic shadowcopy delete3⤵
- Suspicious use of WriteProcessMemory
PID:2760 -
C:\Windows\system32\vssadmin.exevssadmin delete shadows /all /quiet4⤵
- Interacts with shadow copies
PID:2684
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C:\Windows\System32\Wbem\WMIC.exewmic shadowcopy delete4⤵
- Suspicious use of AdjustPrivilegeToken
PID:2444
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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:1924 -
C:\Windows\system32\bcdedit.exebcdedit /set {default} bootstatuspolicy ignoreallfailures4⤵
- Modifies boot configuration data using bcdedit
PID:1664
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C:\Windows\system32\bcdedit.exebcdedit /set {default} recoveryenabled no4⤵
- Modifies boot configuration data using bcdedit
PID:2520
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C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" /C wbadmin delete catalog -quiet3⤵
- Suspicious use of WriteProcessMemory
PID:1672 -
C:\Windows\system32\wbadmin.exewbadmin delete catalog -quiet4⤵
- Deletes backup catalog
PID:2712
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C:\Windows\system32\NOTEPAD.EXE"C:\Windows\system32\NOTEPAD.EXE" C:\Users\Admin\AppData\Roaming\unlock.txt3⤵
- Opens file in notepad (likely ransom note)
PID:2140
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C:\Windows\system32\vssvc.exeC:\Windows\system32\vssvc.exe1⤵
- Suspicious use of AdjustPrivilegeToken
PID:2780
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C:\Windows\system32\wbengine.exe"C:\Windows\system32\wbengine.exe"1⤵
- Suspicious use of AdjustPrivilegeToken
PID:764
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C:\Windows\System32\vdsldr.exeC:\Windows\System32\vdsldr.exe -Embedding1⤵PID:1436
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C:\Windows\System32\vds.exeC:\Windows\System32\vds.exe1⤵PID:1756
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
484B
MD519c0d8b1825404eeeb36aba59ad88a6b
SHA15b9e2eb1f8ceaa14af46733b64d568aeacd96380
SHA256d1cc4594d393c62ebe735dde25d60b49501a99447b7bc2329f6d94c9a942c56c
SHA5129700451a730dc67bc1e2284f9e082e467b5a2bcb9f54d4446368b02edf8809de1a8ce3d43a14fbcdb91adbdca23bfaf64f7b0053552844068ec96f5ee8f0965d
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Filesize
27KB
MD5a87448407f580aca26856668b1421ca3
SHA1ea453ed748d7b59f27e6ccbe7a3c47982b8d831a
SHA256018699d7f48805c5eec9236d386c71883a3bb78cc29eec6a354784547672c267
SHA5129e0e24f0aef6aaf7a13cbb646084484f7eaf80f83eb2390e3764cd28982ec5d4148291e14c617f6fe38fe2eb5f8dbae3a45770a7d0919860d09c582e02743233
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Filesize
1B
MD5d1457b72c3fb323a2671125aef3eab5d
SHA15bab61eb53176449e25c2c82f172b82cb13ffb9d
SHA2568a8de823d5ed3e12746a62ef169bcf372be0ca44f0a1236abc35df05d96928e1
SHA512ca63c07ad35d8c9fb0c92d6146759b122d4ec5d3f67ebe2f30ddb69f9e6c9fd3bf31a5e408b08f1d4d9cd68120cced9e57f010bef3cde97653fed5470da7d1a0