Analysis
-
max time kernel
118s -
max time network
120s -
platform
windows7_x64 -
resource
win7-20241010-en -
resource tags
arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system -
submitted
08-01-2025 04:37
Behavioral task
behavioral1
Sample
2025-01-08_bccffd58776272eab71ecd9dde5a1735_destroyer_wannacry.exe
Resource
win7-20241010-en
Behavioral task
behavioral2
Sample
2025-01-08_bccffd58776272eab71ecd9dde5a1735_destroyer_wannacry.exe
Resource
win10v2004-20241007-en
General
-
Target
2025-01-08_bccffd58776272eab71ecd9dde5a1735_destroyer_wannacry.exe
-
Size
55KB
-
MD5
bccffd58776272eab71ecd9dde5a1735
-
SHA1
d263ff45831ed75ac2eab51dfa543beadde51149
-
SHA256
1c6906f13a8f27d246689f648f9928afda7848f7176aa9845ab926647dfba486
-
SHA512
5c8bb405986fe1470df3d093629eba296db4ce7c802c32660fd7e7076935b2708ff0a656bc52f298de491b2caa633364c0470835fbb426fdbd1d95f4ecc61860
-
SSDEEP
1536:GNy0COWkCq9IcHX/NYMGvZFA3FD0TS/+:z03Cq9IcHFYDFAWuW
Malware Config
Signatures
-
Chaos
Ransomware family first seen in June 2021.
-
Chaos Ransomware 3 IoCs
resource yara_rule behavioral1/memory/1956-1-0x00000000000C0000-0x00000000000D4000-memory.dmp family_chaos behavioral1/files/0x000c000000012263-6.dat family_chaos behavioral1/memory/1484-8-0x00000000008B0000-0x00000000008C4000-memory.dmp family_chaos -
Chaos family
-
Deletes shadow copies 3 TTPs
Ransomware often targets backup files to inhibit system recovery.
-
Modifies boot configuration data using bcdedit 1 TTPs 2 IoCs
pid Process 1672 bcdedit.exe 900 bcdedit.exe -
Renames multiple (178) files with added filename extension
This suggests ransomware activity of encrypting all the files on the system.
-
pid Process 1884 wbadmin.exe -
Disables Task Manager via registry modification
-
Drops startup file 2 IoCs
description ioc Process File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\read_it.txt svchost.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\desktop.ini svchost.exe -
Executes dropped EXE 1 IoCs
pid Process 1484 svchost.exe -
Reads user/profile data of web browsers 3 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
-
Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-2039016743-699959520-214465309-1000\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\Downloads\desktop.ini svchost.exe File opened for modification C:\Users\Public\Music\Sample Music\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\Public\Documents\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\Windows\Temporary Internet Files\Content.IE5\0CSVYEJU\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Documents\desktop.ini svchost.exe File opened for modification C:\Users\Public\Pictures\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\Local\Microsoft\Windows\Temporary Internet Files\Content.IE5\8U3B82NZ\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\Public\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\Windows PowerShell\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\Admin\AppData\Local\Microsoft\Windows Mail\Stationery\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\Programs\Accessories\Desktop.ini svchost.exe File opened for modification C:\Users\Admin\AppData\Local\Microsoft\Feeds Cache\BJINZE1S\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\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\Admin\Music\desktop.ini svchost.exe File opened for modification F:\$RECYCLE.BIN\S-1-5-21-2039016743-699959520-214465309-1000\desktop.ini svchost.exe File opened for modification C:\Users\Admin\AppData\Local\Microsoft\Feeds Cache\V50G20NG\desktop.ini svchost.exe File opened for modification C:\Users\Admin\AppData\Local\Microsoft\Feeds Cache\65NE61TJ\desktop.ini svchost.exe File opened for modification C:\Users\Admin\AppData\Local\Microsoft\Feeds Cache\QHWRVUKQ\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\Public\Videos\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\All Users\Microsoft\Windows\Start Menu\Programs\Administrative Tools\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\Searches\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\Windows\Temporary Internet Files\Content.IE5\desktop.ini svchost.exe File opened for modification C:\Users\Public\Desktop\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\Games\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\Recorded TV\desktop.ini svchost.exe File opened for modification C:\Users\Public\Videos\Sample 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\Roaming\Microsoft\Windows\Recent\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\Links\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Pictures\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\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\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Maintenance\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\Start Menu\Programs\Accessories\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\Windows\Temporary Internet Files\Content.IE5\2Q9CV5JV\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Desktop\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\Public\Recorded TV\Sample Media\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\Feeds Cache\desktop.ini svchost.exe File opened for modification C:\Users\Default\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Maintenance\Desktop.ini svchost.exe -
Sets desktop wallpaper using registry 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-2039016743-699959520-214465309-1000\Control Panel\Desktop\Wallpaper = "C:\\Users\\Admin\\AppData\\Local\\Temp\\szua60sl9.jpg" svchost.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
-
Interacts with shadow copies 3 TTPs 1 IoCs
Shadow copies are often targeted by ransomware to inhibit system recovery.
pid Process 2892 vssadmin.exe -
Opens file in notepad (likely ransom note) 1 IoCs
pid Process 756 NOTEPAD.EXE -
Suspicious behavior: AddClipboardFormatListener 2 IoCs
pid Process 1956 2025-01-08_bccffd58776272eab71ecd9dde5a1735_destroyer_wannacry.exe 1484 svchost.exe -
Suspicious behavior: EnumeratesProcesses 6 IoCs
pid Process 1956 2025-01-08_bccffd58776272eab71ecd9dde5a1735_destroyer_wannacry.exe 1956 2025-01-08_bccffd58776272eab71ecd9dde5a1735_destroyer_wannacry.exe 1956 2025-01-08_bccffd58776272eab71ecd9dde5a1735_destroyer_wannacry.exe 1484 svchost.exe 1484 svchost.exe 1484 svchost.exe -
Suspicious use of AdjustPrivilegeToken 48 IoCs
description pid Process Token: SeDebugPrivilege 1956 2025-01-08_bccffd58776272eab71ecd9dde5a1735_destroyer_wannacry.exe Token: SeDebugPrivilege 1484 svchost.exe Token: SeBackupPrivilege 3056 vssvc.exe Token: SeRestorePrivilege 3056 vssvc.exe Token: SeAuditPrivilege 3056 vssvc.exe Token: SeIncreaseQuotaPrivilege 2652 WMIC.exe Token: SeSecurityPrivilege 2652 WMIC.exe Token: SeTakeOwnershipPrivilege 2652 WMIC.exe Token: SeLoadDriverPrivilege 2652 WMIC.exe Token: SeSystemProfilePrivilege 2652 WMIC.exe Token: SeSystemtimePrivilege 2652 WMIC.exe Token: SeProfSingleProcessPrivilege 2652 WMIC.exe Token: SeIncBasePriorityPrivilege 2652 WMIC.exe Token: SeCreatePagefilePrivilege 2652 WMIC.exe Token: SeBackupPrivilege 2652 WMIC.exe Token: SeRestorePrivilege 2652 WMIC.exe Token: SeShutdownPrivilege 2652 WMIC.exe Token: SeDebugPrivilege 2652 WMIC.exe Token: SeSystemEnvironmentPrivilege 2652 WMIC.exe Token: SeRemoteShutdownPrivilege 2652 WMIC.exe Token: SeUndockPrivilege 2652 WMIC.exe Token: SeManageVolumePrivilege 2652 WMIC.exe Token: 33 2652 WMIC.exe Token: 34 2652 WMIC.exe Token: 35 2652 WMIC.exe Token: SeIncreaseQuotaPrivilege 2652 WMIC.exe Token: SeSecurityPrivilege 2652 WMIC.exe Token: SeTakeOwnershipPrivilege 2652 WMIC.exe Token: SeLoadDriverPrivilege 2652 WMIC.exe Token: SeSystemProfilePrivilege 2652 WMIC.exe Token: SeSystemtimePrivilege 2652 WMIC.exe Token: SeProfSingleProcessPrivilege 2652 WMIC.exe Token: SeIncBasePriorityPrivilege 2652 WMIC.exe Token: SeCreatePagefilePrivilege 2652 WMIC.exe Token: SeBackupPrivilege 2652 WMIC.exe Token: SeRestorePrivilege 2652 WMIC.exe Token: SeShutdownPrivilege 2652 WMIC.exe Token: SeDebugPrivilege 2652 WMIC.exe Token: SeSystemEnvironmentPrivilege 2652 WMIC.exe Token: SeRemoteShutdownPrivilege 2652 WMIC.exe Token: SeUndockPrivilege 2652 WMIC.exe Token: SeManageVolumePrivilege 2652 WMIC.exe Token: 33 2652 WMIC.exe Token: 34 2652 WMIC.exe Token: 35 2652 WMIC.exe Token: SeBackupPrivilege 1756 wbengine.exe Token: SeRestorePrivilege 1756 wbengine.exe Token: SeSecurityPrivilege 1756 wbengine.exe -
Suspicious use of WriteProcessMemory 30 IoCs
description pid Process procid_target PID 1956 wrote to memory of 1484 1956 2025-01-08_bccffd58776272eab71ecd9dde5a1735_destroyer_wannacry.exe 31 PID 1956 wrote to memory of 1484 1956 2025-01-08_bccffd58776272eab71ecd9dde5a1735_destroyer_wannacry.exe 31 PID 1956 wrote to memory of 1484 1956 2025-01-08_bccffd58776272eab71ecd9dde5a1735_destroyer_wannacry.exe 31 PID 1484 wrote to memory of 2776 1484 svchost.exe 32 PID 1484 wrote to memory of 2776 1484 svchost.exe 32 PID 1484 wrote to memory of 2776 1484 svchost.exe 32 PID 2776 wrote to memory of 2892 2776 cmd.exe 34 PID 2776 wrote to memory of 2892 2776 cmd.exe 34 PID 2776 wrote to memory of 2892 2776 cmd.exe 34 PID 2776 wrote to memory of 2652 2776 cmd.exe 37 PID 2776 wrote to memory of 2652 2776 cmd.exe 37 PID 2776 wrote to memory of 2652 2776 cmd.exe 37 PID 1484 wrote to memory of 1804 1484 svchost.exe 39 PID 1484 wrote to memory of 1804 1484 svchost.exe 39 PID 1484 wrote to memory of 1804 1484 svchost.exe 39 PID 1804 wrote to memory of 1672 1804 cmd.exe 41 PID 1804 wrote to memory of 1672 1804 cmd.exe 41 PID 1804 wrote to memory of 1672 1804 cmd.exe 41 PID 1804 wrote to memory of 900 1804 cmd.exe 42 PID 1804 wrote to memory of 900 1804 cmd.exe 42 PID 1804 wrote to memory of 900 1804 cmd.exe 42 PID 1484 wrote to memory of 1808 1484 svchost.exe 43 PID 1484 wrote to memory of 1808 1484 svchost.exe 43 PID 1484 wrote to memory of 1808 1484 svchost.exe 43 PID 1808 wrote to memory of 1884 1808 cmd.exe 45 PID 1808 wrote to memory of 1884 1808 cmd.exe 45 PID 1808 wrote to memory of 1884 1808 cmd.exe 45 PID 1484 wrote to memory of 756 1484 svchost.exe 50 PID 1484 wrote to memory of 756 1484 svchost.exe 50 PID 1484 wrote to memory of 756 1484 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.
-
Uses Volume Shadow Copy service COM API
The Volume Shadow Copy service is used to manage backups/snapshots.
Processes
-
C:\Users\Admin\AppData\Local\Temp\2025-01-08_bccffd58776272eab71ecd9dde5a1735_destroyer_wannacry.exe"C:\Users\Admin\AppData\Local\Temp\2025-01-08_bccffd58776272eab71ecd9dde5a1735_destroyer_wannacry.exe"1⤵
- Suspicious behavior: AddClipboardFormatListener
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1956 -
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)
- Sets desktop wallpaper using registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1484 -
C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" /C vssadmin delete shadows /all /quiet & wmic shadowcopy delete3⤵
- Suspicious use of WriteProcessMemory
PID:2776 -
C:\Windows\system32\vssadmin.exevssadmin delete shadows /all /quiet4⤵
- Interacts with shadow copies
PID:2892
-
-
C:\Windows\System32\Wbem\WMIC.exewmic shadowcopy delete4⤵
- Suspicious use of AdjustPrivilegeToken
PID:2652
-
-
-
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:1804 -
C:\Windows\system32\bcdedit.exebcdedit /set {default} bootstatuspolicy ignoreallfailures4⤵
- Modifies boot configuration data using bcdedit
PID:1672
-
-
C:\Windows\system32\bcdedit.exebcdedit /set {default} recoveryenabled no4⤵
- Modifies boot configuration data using bcdedit
PID:900
-
-
-
C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" /C wbadmin delete catalog -quiet3⤵
- Suspicious use of WriteProcessMemory
PID:1808 -
C:\Windows\system32\wbadmin.exewbadmin delete catalog -quiet4⤵
- Deletes backup catalog
PID:1884
-
-
-
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:756
-
-
-
C:\Windows\system32\vssvc.exeC:\Windows\system32\vssvc.exe1⤵
- Suspicious use of AdjustPrivilegeToken
PID:3056
-
C:\Windows\system32\wbengine.exe"C:\Windows\system32\wbengine.exe"1⤵
- Suspicious use of AdjustPrivilegeToken
PID:1756
-
C:\Windows\System32\vdsldr.exeC:\Windows\System32\vdsldr.exe -Embedding1⤵PID:1336
-
C:\Windows\System32\vds.exeC:\Windows\System32\vds.exe1⤵PID:1780
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
2Replay Monitor
Loading Replay Monitor...
Downloads
-
Filesize
808B
MD5296cbb8dc865eb8069942f90acd4c570
SHA18212d84e630a03ed1533526b8a2f146a3b0f6644
SHA2565facad0ccca6e4bed131defc487ff17f53ba6f1194e71373dee8188413bc0830
SHA512980c7bff2333c500d2bafd0d46b6416aa2611252bae3f5eb54b60eb204ed77c2be6907e437e72b7e204df116da22a5c2103de1e9865391946b3cfdd519b644c6
-
Filesize
55KB
MD5bccffd58776272eab71ecd9dde5a1735
SHA1d263ff45831ed75ac2eab51dfa543beadde51149
SHA2561c6906f13a8f27d246689f648f9928afda7848f7176aa9845ab926647dfba486
SHA5125c8bb405986fe1470df3d093629eba296db4ce7c802c32660fd7e7076935b2708ff0a656bc52f298de491b2caa633364c0470835fbb426fdbd1d95f4ecc61860
-
Filesize
1B
MD5d1457b72c3fb323a2671125aef3eab5d
SHA15bab61eb53176449e25c2c82f172b82cb13ffb9d
SHA2568a8de823d5ed3e12746a62ef169bcf372be0ca44f0a1236abc35df05d96928e1
SHA512ca63c07ad35d8c9fb0c92d6146759b122d4ec5d3f67ebe2f30ddb69f9e6c9fd3bf31a5e408b08f1d4d9cd68120cced9e57f010bef3cde97653fed5470da7d1a0