Analysis
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max time kernel
150s -
max time network
121s -
platform
windows7_x64 -
resource
win7-20240708-en -
resource tags
arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system -
submitted
24-08-2024 14:25
Behavioral task
behavioral1
Sample
2024-08-24_986142c4925313e754182bae2190441b_destroyer_wannacry.exe
Resource
win7-20240708-en
Behavioral task
behavioral2
Sample
2024-08-24_986142c4925313e754182bae2190441b_destroyer_wannacry.exe
Resource
win10v2004-20240802-en
General
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Target
2024-08-24_986142c4925313e754182bae2190441b_destroyer_wannacry.exe
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Size
31KB
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MD5
986142c4925313e754182bae2190441b
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SHA1
8e427fb52a1adc15f8cd2d62c30e6c35068f9f71
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SHA256
662d4790f439ebea6de7d8085f29267f6fe9bc20ae67b5e1ad1e6d50287ab0f2
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SHA512
d2be2890fafb0455395dbae244c02d1d3d973d3a3de502f0c3a3a62931f07b5148c4a5d0baac69240a5d1d78f1781fcb6260b3fe851838a8f46fcc3815de7b63
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SSDEEP
384:rgMg/bqoymcxtipcmrV5OU34+X0ZsJJFr91CqWJ6mIxb50Oeh:UqoyptUcOV94+kCHFr90pIxbKOeh
Malware Config
Extracted
C:\Users\Admin\Documents\read_it.txt
chaos
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/2092-1-0x0000000000C90000-0x0000000000CA2000-memory.dmp family_chaos behavioral1/files/0x00080000000120fb-6.dat family_chaos behavioral1/memory/2536-8-0x0000000000060000-0x0000000000072000-memory.dmp family_chaos -
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 2992 bcdedit.exe 2152 bcdedit.exe -
pid Process 1544 wbadmin.exe -
Drops startup file 3 IoCs
description ioc Process File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\svchost.url svchost.exe 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 2536 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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Drops desktop.ini file(s) 34 IoCs
description ioc Process 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\Public\Videos\desktop.ini svchost.exe File opened for modification C:\Users\Public\Desktop\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Pictures\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\Admin\AppData\Roaming\Microsoft\Windows\Libraries\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\Public\Music\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\Documents\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Searches\desktop.ini svchost.exe File opened for modification C:\Users\Public\Pictures\desktop.ini svchost.exe File opened for modification F:\$RECYCLE.BIN\S-1-5-21-3551809350-4263495960-1443967649-1000\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\Admin\Desktop\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Favorites\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\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 File opened for modification C:\Users\Admin\Favorites\Links\desktop.ini svchost.exe File opened for modification C:\Users\Public\Documents\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\Links\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Contacts\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Saved Games\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\Videos\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\Downloads\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\System Tools\Desktop.ini svchost.exe File opened for modification C:\Users\Public\Videos\Sample Videos\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 3 TTPs 1 IoCs
Shadow copies are often targeted by ransomware to inhibit system recovery.
pid Process 2312 vssadmin.exe -
Opens file in notepad (likely ransom note) 1 IoCs
pid Process 2228 NOTEPAD.EXE -
Suspicious behavior: AddClipboardFormatListener 1 IoCs
pid Process 2536 svchost.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 2092 2024-08-24_986142c4925313e754182bae2190441b_destroyer_wannacry.exe 2092 2024-08-24_986142c4925313e754182bae2190441b_destroyer_wannacry.exe 2092 2024-08-24_986142c4925313e754182bae2190441b_destroyer_wannacry.exe 2092 2024-08-24_986142c4925313e754182bae2190441b_destroyer_wannacry.exe 2092 2024-08-24_986142c4925313e754182bae2190441b_destroyer_wannacry.exe 2092 2024-08-24_986142c4925313e754182bae2190441b_destroyer_wannacry.exe 2092 2024-08-24_986142c4925313e754182bae2190441b_destroyer_wannacry.exe 2092 2024-08-24_986142c4925313e754182bae2190441b_destroyer_wannacry.exe 2092 2024-08-24_986142c4925313e754182bae2190441b_destroyer_wannacry.exe 2092 2024-08-24_986142c4925313e754182bae2190441b_destroyer_wannacry.exe 2092 2024-08-24_986142c4925313e754182bae2190441b_destroyer_wannacry.exe 2092 2024-08-24_986142c4925313e754182bae2190441b_destroyer_wannacry.exe 2092 2024-08-24_986142c4925313e754182bae2190441b_destroyer_wannacry.exe 2092 2024-08-24_986142c4925313e754182bae2190441b_destroyer_wannacry.exe 2092 2024-08-24_986142c4925313e754182bae2190441b_destroyer_wannacry.exe 2092 2024-08-24_986142c4925313e754182bae2190441b_destroyer_wannacry.exe 2092 2024-08-24_986142c4925313e754182bae2190441b_destroyer_wannacry.exe 2092 2024-08-24_986142c4925313e754182bae2190441b_destroyer_wannacry.exe 2092 2024-08-24_986142c4925313e754182bae2190441b_destroyer_wannacry.exe 2092 2024-08-24_986142c4925313e754182bae2190441b_destroyer_wannacry.exe 2092 2024-08-24_986142c4925313e754182bae2190441b_destroyer_wannacry.exe 2092 2024-08-24_986142c4925313e754182bae2190441b_destroyer_wannacry.exe 2092 2024-08-24_986142c4925313e754182bae2190441b_destroyer_wannacry.exe 2092 2024-08-24_986142c4925313e754182bae2190441b_destroyer_wannacry.exe 2092 2024-08-24_986142c4925313e754182bae2190441b_destroyer_wannacry.exe 2092 2024-08-24_986142c4925313e754182bae2190441b_destroyer_wannacry.exe 2092 2024-08-24_986142c4925313e754182bae2190441b_destroyer_wannacry.exe 2092 2024-08-24_986142c4925313e754182bae2190441b_destroyer_wannacry.exe 2092 2024-08-24_986142c4925313e754182bae2190441b_destroyer_wannacry.exe 2092 2024-08-24_986142c4925313e754182bae2190441b_destroyer_wannacry.exe 2092 2024-08-24_986142c4925313e754182bae2190441b_destroyer_wannacry.exe 2092 2024-08-24_986142c4925313e754182bae2190441b_destroyer_wannacry.exe 2092 2024-08-24_986142c4925313e754182bae2190441b_destroyer_wannacry.exe 2092 2024-08-24_986142c4925313e754182bae2190441b_destroyer_wannacry.exe 2092 2024-08-24_986142c4925313e754182bae2190441b_destroyer_wannacry.exe 2092 2024-08-24_986142c4925313e754182bae2190441b_destroyer_wannacry.exe 2092 2024-08-24_986142c4925313e754182bae2190441b_destroyer_wannacry.exe 2092 2024-08-24_986142c4925313e754182bae2190441b_destroyer_wannacry.exe 2092 2024-08-24_986142c4925313e754182bae2190441b_destroyer_wannacry.exe 2092 2024-08-24_986142c4925313e754182bae2190441b_destroyer_wannacry.exe 2092 2024-08-24_986142c4925313e754182bae2190441b_destroyer_wannacry.exe 2092 2024-08-24_986142c4925313e754182bae2190441b_destroyer_wannacry.exe 2092 2024-08-24_986142c4925313e754182bae2190441b_destroyer_wannacry.exe 2092 2024-08-24_986142c4925313e754182bae2190441b_destroyer_wannacry.exe 2092 2024-08-24_986142c4925313e754182bae2190441b_destroyer_wannacry.exe 2092 2024-08-24_986142c4925313e754182bae2190441b_destroyer_wannacry.exe 2092 2024-08-24_986142c4925313e754182bae2190441b_destroyer_wannacry.exe 2092 2024-08-24_986142c4925313e754182bae2190441b_destroyer_wannacry.exe 2092 2024-08-24_986142c4925313e754182bae2190441b_destroyer_wannacry.exe 2092 2024-08-24_986142c4925313e754182bae2190441b_destroyer_wannacry.exe 2092 2024-08-24_986142c4925313e754182bae2190441b_destroyer_wannacry.exe 2092 2024-08-24_986142c4925313e754182bae2190441b_destroyer_wannacry.exe 2092 2024-08-24_986142c4925313e754182bae2190441b_destroyer_wannacry.exe 2092 2024-08-24_986142c4925313e754182bae2190441b_destroyer_wannacry.exe 2092 2024-08-24_986142c4925313e754182bae2190441b_destroyer_wannacry.exe 2092 2024-08-24_986142c4925313e754182bae2190441b_destroyer_wannacry.exe 2092 2024-08-24_986142c4925313e754182bae2190441b_destroyer_wannacry.exe 2092 2024-08-24_986142c4925313e754182bae2190441b_destroyer_wannacry.exe 2092 2024-08-24_986142c4925313e754182bae2190441b_destroyer_wannacry.exe 2092 2024-08-24_986142c4925313e754182bae2190441b_destroyer_wannacry.exe 2092 2024-08-24_986142c4925313e754182bae2190441b_destroyer_wannacry.exe 2092 2024-08-24_986142c4925313e754182bae2190441b_destroyer_wannacry.exe 2092 2024-08-24_986142c4925313e754182bae2190441b_destroyer_wannacry.exe 2092 2024-08-24_986142c4925313e754182bae2190441b_destroyer_wannacry.exe -
Suspicious use of AdjustPrivilegeToken 48 IoCs
description pid Process Token: SeDebugPrivilege 2092 2024-08-24_986142c4925313e754182bae2190441b_destroyer_wannacry.exe Token: SeDebugPrivilege 2536 svchost.exe Token: SeBackupPrivilege 1704 vssvc.exe Token: SeRestorePrivilege 1704 vssvc.exe Token: SeAuditPrivilege 1704 vssvc.exe Token: SeIncreaseQuotaPrivilege 972 WMIC.exe Token: SeSecurityPrivilege 972 WMIC.exe Token: SeTakeOwnershipPrivilege 972 WMIC.exe Token: SeLoadDriverPrivilege 972 WMIC.exe Token: SeSystemProfilePrivilege 972 WMIC.exe Token: SeSystemtimePrivilege 972 WMIC.exe Token: SeProfSingleProcessPrivilege 972 WMIC.exe Token: SeIncBasePriorityPrivilege 972 WMIC.exe Token: SeCreatePagefilePrivilege 972 WMIC.exe Token: SeBackupPrivilege 972 WMIC.exe Token: SeRestorePrivilege 972 WMIC.exe Token: SeShutdownPrivilege 972 WMIC.exe Token: SeDebugPrivilege 972 WMIC.exe Token: SeSystemEnvironmentPrivilege 972 WMIC.exe Token: SeRemoteShutdownPrivilege 972 WMIC.exe Token: SeUndockPrivilege 972 WMIC.exe Token: SeManageVolumePrivilege 972 WMIC.exe Token: 33 972 WMIC.exe Token: 34 972 WMIC.exe Token: 35 972 WMIC.exe Token: SeIncreaseQuotaPrivilege 972 WMIC.exe Token: SeSecurityPrivilege 972 WMIC.exe Token: SeTakeOwnershipPrivilege 972 WMIC.exe Token: SeLoadDriverPrivilege 972 WMIC.exe Token: SeSystemProfilePrivilege 972 WMIC.exe Token: SeSystemtimePrivilege 972 WMIC.exe Token: SeProfSingleProcessPrivilege 972 WMIC.exe Token: SeIncBasePriorityPrivilege 972 WMIC.exe Token: SeCreatePagefilePrivilege 972 WMIC.exe Token: SeBackupPrivilege 972 WMIC.exe Token: SeRestorePrivilege 972 WMIC.exe Token: SeShutdownPrivilege 972 WMIC.exe Token: SeDebugPrivilege 972 WMIC.exe Token: SeSystemEnvironmentPrivilege 972 WMIC.exe Token: SeRemoteShutdownPrivilege 972 WMIC.exe Token: SeUndockPrivilege 972 WMIC.exe Token: SeManageVolumePrivilege 972 WMIC.exe Token: 33 972 WMIC.exe Token: 34 972 WMIC.exe Token: 35 972 WMIC.exe Token: SeBackupPrivilege 1748 wbengine.exe Token: SeRestorePrivilege 1748 wbengine.exe Token: SeSecurityPrivilege 1748 wbengine.exe -
Suspicious use of WriteProcessMemory 30 IoCs
description pid Process procid_target PID 2092 wrote to memory of 2536 2092 2024-08-24_986142c4925313e754182bae2190441b_destroyer_wannacry.exe 30 PID 2092 wrote to memory of 2536 2092 2024-08-24_986142c4925313e754182bae2190441b_destroyer_wannacry.exe 30 PID 2092 wrote to memory of 2536 2092 2024-08-24_986142c4925313e754182bae2190441b_destroyer_wannacry.exe 30 PID 2536 wrote to memory of 540 2536 svchost.exe 32 PID 2536 wrote to memory of 540 2536 svchost.exe 32 PID 2536 wrote to memory of 540 2536 svchost.exe 32 PID 540 wrote to memory of 2312 540 cmd.exe 34 PID 540 wrote to memory of 2312 540 cmd.exe 34 PID 540 wrote to memory of 2312 540 cmd.exe 34 PID 540 wrote to memory of 972 540 cmd.exe 38 PID 540 wrote to memory of 972 540 cmd.exe 38 PID 540 wrote to memory of 972 540 cmd.exe 38 PID 2536 wrote to memory of 2392 2536 svchost.exe 40 PID 2536 wrote to memory of 2392 2536 svchost.exe 40 PID 2536 wrote to memory of 2392 2536 svchost.exe 40 PID 2392 wrote to memory of 2992 2392 cmd.exe 42 PID 2392 wrote to memory of 2992 2392 cmd.exe 42 PID 2392 wrote to memory of 2992 2392 cmd.exe 42 PID 2392 wrote to memory of 2152 2392 cmd.exe 43 PID 2392 wrote to memory of 2152 2392 cmd.exe 43 PID 2392 wrote to memory of 2152 2392 cmd.exe 43 PID 2536 wrote to memory of 1936 2536 svchost.exe 44 PID 2536 wrote to memory of 1936 2536 svchost.exe 44 PID 2536 wrote to memory of 1936 2536 svchost.exe 44 PID 1936 wrote to memory of 1544 1936 cmd.exe 46 PID 1936 wrote to memory of 1544 1936 cmd.exe 46 PID 1936 wrote to memory of 1544 1936 cmd.exe 46 PID 2536 wrote to memory of 2228 2536 svchost.exe 50 PID 2536 wrote to memory of 2228 2536 svchost.exe 50 PID 2536 wrote to memory of 2228 2536 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.
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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\2024-08-24_986142c4925313e754182bae2190441b_destroyer_wannacry.exe"C:\Users\Admin\AppData\Local\Temp\2024-08-24_986142c4925313e754182bae2190441b_destroyer_wannacry.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2092 -
C:\Users\Admin\AppData\Roaming\svchost.exe"C:\Users\Admin\AppData\Roaming\svchost.exe"2⤵
- Drops startup file
- Executes dropped EXE
- Drops desktop.ini file(s)
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2536 -
C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" /C vssadmin delete shadows /all /quiet & wmic shadowcopy delete3⤵
- Suspicious use of WriteProcessMemory
PID:540 -
C:\Windows\system32\vssadmin.exevssadmin delete shadows /all /quiet4⤵
- Interacts with shadow copies
PID:2312
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C:\Windows\System32\Wbem\WMIC.exewmic shadowcopy delete4⤵
- Suspicious use of AdjustPrivilegeToken
PID:972
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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:2392 -
C:\Windows\system32\bcdedit.exebcdedit /set {default} bootstatuspolicy ignoreallfailures4⤵
- Modifies boot configuration data using bcdedit
PID:2992
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C:\Windows\system32\bcdedit.exebcdedit /set {default} recoveryenabled no4⤵
- Modifies boot configuration data using bcdedit
PID:2152
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C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" /C wbadmin delete catalog -quiet3⤵
- Suspicious use of WriteProcessMemory
PID:1936 -
C:\Windows\system32\wbadmin.exewbadmin delete catalog -quiet4⤵
- Deletes backup catalog
PID:1544
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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:2228
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C:\Windows\system32\vssvc.exeC:\Windows\system32\vssvc.exe1⤵
- Suspicious use of AdjustPrivilegeToken
PID:1704
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C:\Windows\system32\wbengine.exe"C:\Windows\system32\wbengine.exe"1⤵
- Suspicious use of AdjustPrivilegeToken
PID:1748
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C:\Windows\System32\vdsldr.exeC:\Windows\System32\vdsldr.exe -Embedding1⤵PID:2012
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C:\Windows\System32\vds.exeC:\Windows\System32\vds.exe1⤵PID:1696
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
31KB
MD5986142c4925313e754182bae2190441b
SHA18e427fb52a1adc15f8cd2d62c30e6c35068f9f71
SHA256662d4790f439ebea6de7d8085f29267f6fe9bc20ae67b5e1ad1e6d50287ab0f2
SHA512d2be2890fafb0455395dbae244c02d1d3d973d3a3de502f0c3a3a62931f07b5148c4a5d0baac69240a5d1d78f1781fcb6260b3fe851838a8f46fcc3815de7b63
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Filesize
964B
MD54217b8b83ce3c3f70029a056546f8fd0
SHA1487cdb5733d073a0427418888e8f7070fe782a03
SHA2567d767e907be373c680d1f7884d779588eb643bebb3f27bf3b5ed4864aa4d8121
SHA5122a58c99fa52f99c276e27eb98aef2ce1205f16d1e37b7e87eb69e9ecda22b578195a43f1a7f70fead6ba70421abf2f85c917551c191536eaf1f3011d3d24f740