Analysis
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max time kernel
122s -
max time network
125s -
platform
windows7_x64 -
resource
win7-20240221-en -
resource tags
arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system -
submitted
01-03-2024 08:29
Behavioral task
behavioral1
Sample
2024-03-01_a241612b5e52ca2a33c72ac7d12ac07e_wannacry.exe
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
2024-03-01_a241612b5e52ca2a33c72ac7d12ac07e_wannacry.exe
Resource
win10v2004-20240226-en
General
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Target
2024-03-01_a241612b5e52ca2a33c72ac7d12ac07e_wannacry.exe
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Size
211KB
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MD5
a241612b5e52ca2a33c72ac7d12ac07e
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SHA1
88cb40acc46ff18b0dfc0e283748e117f8fcc494
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SHA256
4c8a411ba653c73d9cf47886f3319ccab05373aa8024553a565eca0776397683
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SHA512
d4db8e1d4988390338fe0ae396b9140d67fbfa0c1e1c196c8f74c30bb9de4ec0f0d490f550abec49ff27514495c385a5b4b45479c6b2d2cae48b1d0853305b88
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SSDEEP
3072:vjSdeLRfmTcGPp97M26+MZjQQbKGUE3T9Mg5hw0GlVdopt5:BdwcGh7+jUGULsWVq
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/2612-8-0x00000000001F0000-0x000000000022C000-memory.dmp family_chaos behavioral1/files/0x0008000000012265-7.dat family_chaos behavioral1/memory/2072-0-0x0000000000160000-0x000000000019C000-memory.dmp family_chaos -
Deletes shadow copies 2 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/2612-8-0x00000000001F0000-0x000000000022C000-memory.dmp INDICATOR_SUSPICIOUS_GENRansomware behavioral1/files/0x0008000000012265-7.dat INDICATOR_SUSPICIOUS_GENRansomware behavioral1/memory/2072-0-0x0000000000160000-0x000000000019C000-memory.dmp INDICATOR_SUSPICIOUS_GENRansomware -
Detects executables containing many references to VEEAM. Observed in ransomware 3 IoCs
resource yara_rule behavioral1/memory/2612-8-0x00000000001F0000-0x000000000022C000-memory.dmp INDICATOR_SUSPICOUS_EXE_References_VEEAM behavioral1/files/0x0008000000012265-7.dat INDICATOR_SUSPICOUS_EXE_References_VEEAM behavioral1/memory/2072-0-0x0000000000160000-0x000000000019C000-memory.dmp INDICATOR_SUSPICOUS_EXE_References_VEEAM -
Detects executables packed with ConfuserEx Mod 3 IoCs
resource yara_rule behavioral1/memory/2612-8-0x00000000001F0000-0x000000000022C000-memory.dmp INDICATOR_EXE_Packed_ConfuserEx behavioral1/files/0x0008000000012265-7.dat INDICATOR_EXE_Packed_ConfuserEx behavioral1/memory/2072-0-0x0000000000160000-0x000000000019C000-memory.dmp INDICATOR_EXE_Packed_ConfuserEx -
Modifies boot configuration data using bcdedit 1 TTPs 2 IoCs
pid Process 2848 bcdedit.exe 2404 bcdedit.exe -
pid Process 2352 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\note.txt svchost.exe -
Executes dropped EXE 1 IoCs
pid Process 2612 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-1-5-21-2461186416-2307104501-1787948496-1000\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\Windows\Temporary Internet Files\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\Default\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Maintenance\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\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\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Accessories\Accessibility\Desktop.ini svchost.exe File opened for modification C:\Users\Admin\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\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.IE5\LPUQSI86\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\Roaming\Microsoft\Windows\Start Menu\desktop.ini svchost.exe File opened for modification C:\Users\Admin\AppData\Local\Microsoft\Feeds Cache\6XKWH8B4\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\Sample Music\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\All Users\Microsoft\Windows\Start Menu\Programs\Maintenance\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\Windows\Start Menu\Programs\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\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\All Users\Microsoft\Windows\Start Menu\Programs\Startup\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\Temporary Internet Files\Content.IE5\SBRLW161\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\Favorites\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Saved Games\desktop.ini svchost.exe File opened for modification F:\$RECYCLE.BIN\S-1-5-21-2461186416-2307104501-1787948496-1000\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\Libraries\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Music\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 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\Admin\AppData\Local\Microsoft\Feeds Cache\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\Admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.IE5\RHQCJM0I\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\Favorites\Links for United States\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Pictures\desktop.ini svchost.exe File opened for modification C:\Users\Public\Videos\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\Administrative Tools\desktop.ini svchost.exe File opened for modification C:\Users\Admin\AppData\Local\Microsoft\Feeds Cache\AV1TQQJE\desktop.ini svchost.exe File opened for modification C:\Users\Admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.IE5\YQZLIS18\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\Documents\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\Public\Pictures\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\Public\Recorded TV\desktop.ini svchost.exe File opened for modification C:\Users\Admin\AppData\Local\Microsoft\Feeds Cache\CS2CK2LE\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\All Users\Microsoft\Windows\Start Menu\Programs\Games\Desktop.ini svchost.exe File opened for modification C:\Users\Public\Music\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Searches\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\Downloads\desktop.ini svchost.exe -
Sets desktop wallpaper using registry 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-2461186416-2307104501-1787948496-1000\Control Panel\Desktop\Wallpaper = "C:\\Users\\Admin\\AppData\\Local\\Temp\\7ieiltq2m.jpg" 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 2700 vssadmin.exe -
Opens file in notepad (likely ransom note) 1 IoCs
pid Process 472 NOTEPAD.EXE -
Suspicious behavior: AddClipboardFormatListener 2 IoCs
pid Process 2072 2024-03-01_a241612b5e52ca2a33c72ac7d12ac07e_wannacry.exe 2612 svchost.exe -
Suspicious behavior: EnumeratesProcesses 5 IoCs
pid Process 2072 2024-03-01_a241612b5e52ca2a33c72ac7d12ac07e_wannacry.exe 2072 2024-03-01_a241612b5e52ca2a33c72ac7d12ac07e_wannacry.exe 2612 svchost.exe 2612 svchost.exe 2612 svchost.exe -
Suspicious use of AdjustPrivilegeToken 48 IoCs
description pid Process Token: SeDebugPrivilege 2072 2024-03-01_a241612b5e52ca2a33c72ac7d12ac07e_wannacry.exe Token: SeDebugPrivilege 2612 svchost.exe Token: SeBackupPrivilege 2504 vssvc.exe Token: SeRestorePrivilege 2504 vssvc.exe Token: SeAuditPrivilege 2504 vssvc.exe Token: SeIncreaseQuotaPrivilege 1932 WMIC.exe Token: SeSecurityPrivilege 1932 WMIC.exe Token: SeTakeOwnershipPrivilege 1932 WMIC.exe Token: SeLoadDriverPrivilege 1932 WMIC.exe Token: SeSystemProfilePrivilege 1932 WMIC.exe Token: SeSystemtimePrivilege 1932 WMIC.exe Token: SeProfSingleProcessPrivilege 1932 WMIC.exe Token: SeIncBasePriorityPrivilege 1932 WMIC.exe Token: SeCreatePagefilePrivilege 1932 WMIC.exe Token: SeBackupPrivilege 1932 WMIC.exe Token: SeRestorePrivilege 1932 WMIC.exe Token: SeShutdownPrivilege 1932 WMIC.exe Token: SeDebugPrivilege 1932 WMIC.exe Token: SeSystemEnvironmentPrivilege 1932 WMIC.exe Token: SeRemoteShutdownPrivilege 1932 WMIC.exe Token: SeUndockPrivilege 1932 WMIC.exe Token: SeManageVolumePrivilege 1932 WMIC.exe Token: 33 1932 WMIC.exe Token: 34 1932 WMIC.exe Token: 35 1932 WMIC.exe Token: SeIncreaseQuotaPrivilege 1932 WMIC.exe Token: SeSecurityPrivilege 1932 WMIC.exe Token: SeTakeOwnershipPrivilege 1932 WMIC.exe Token: SeLoadDriverPrivilege 1932 WMIC.exe Token: SeSystemProfilePrivilege 1932 WMIC.exe Token: SeSystemtimePrivilege 1932 WMIC.exe Token: SeProfSingleProcessPrivilege 1932 WMIC.exe Token: SeIncBasePriorityPrivilege 1932 WMIC.exe Token: SeCreatePagefilePrivilege 1932 WMIC.exe Token: SeBackupPrivilege 1932 WMIC.exe Token: SeRestorePrivilege 1932 WMIC.exe Token: SeShutdownPrivilege 1932 WMIC.exe Token: SeDebugPrivilege 1932 WMIC.exe Token: SeSystemEnvironmentPrivilege 1932 WMIC.exe Token: SeRemoteShutdownPrivilege 1932 WMIC.exe Token: SeUndockPrivilege 1932 WMIC.exe Token: SeManageVolumePrivilege 1932 WMIC.exe Token: 33 1932 WMIC.exe Token: 34 1932 WMIC.exe Token: 35 1932 WMIC.exe Token: SeBackupPrivilege 1608 wbengine.exe Token: SeRestorePrivilege 1608 wbengine.exe Token: SeSecurityPrivilege 1608 wbengine.exe -
Suspicious use of WriteProcessMemory 30 IoCs
description pid Process procid_target PID 2072 wrote to memory of 2612 2072 2024-03-01_a241612b5e52ca2a33c72ac7d12ac07e_wannacry.exe 28 PID 2072 wrote to memory of 2612 2072 2024-03-01_a241612b5e52ca2a33c72ac7d12ac07e_wannacry.exe 28 PID 2072 wrote to memory of 2612 2072 2024-03-01_a241612b5e52ca2a33c72ac7d12ac07e_wannacry.exe 28 PID 2612 wrote to memory of 2572 2612 svchost.exe 29 PID 2612 wrote to memory of 2572 2612 svchost.exe 29 PID 2612 wrote to memory of 2572 2612 svchost.exe 29 PID 2572 wrote to memory of 2700 2572 cmd.exe 31 PID 2572 wrote to memory of 2700 2572 cmd.exe 31 PID 2572 wrote to memory of 2700 2572 cmd.exe 31 PID 2572 wrote to memory of 1932 2572 cmd.exe 34 PID 2572 wrote to memory of 1932 2572 cmd.exe 34 PID 2572 wrote to memory of 1932 2572 cmd.exe 34 PID 2612 wrote to memory of 2728 2612 svchost.exe 36 PID 2612 wrote to memory of 2728 2612 svchost.exe 36 PID 2612 wrote to memory of 2728 2612 svchost.exe 36 PID 2728 wrote to memory of 2848 2728 cmd.exe 38 PID 2728 wrote to memory of 2848 2728 cmd.exe 38 PID 2728 wrote to memory of 2848 2728 cmd.exe 38 PID 2728 wrote to memory of 2404 2728 cmd.exe 39 PID 2728 wrote to memory of 2404 2728 cmd.exe 39 PID 2728 wrote to memory of 2404 2728 cmd.exe 39 PID 2612 wrote to memory of 3064 2612 svchost.exe 40 PID 2612 wrote to memory of 3064 2612 svchost.exe 40 PID 2612 wrote to memory of 3064 2612 svchost.exe 40 PID 3064 wrote to memory of 2352 3064 cmd.exe 42 PID 3064 wrote to memory of 2352 3064 cmd.exe 42 PID 3064 wrote to memory of 2352 3064 cmd.exe 42 PID 2612 wrote to memory of 472 2612 svchost.exe 48 PID 2612 wrote to memory of 472 2612 svchost.exe 48 PID 2612 wrote to memory of 472 2612 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\2024-03-01_a241612b5e52ca2a33c72ac7d12ac07e_wannacry.exe"C:\Users\Admin\AppData\Local\Temp\2024-03-01_a241612b5e52ca2a33c72ac7d12ac07e_wannacry.exe"1⤵
- Suspicious behavior: AddClipboardFormatListener
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2072 -
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:2612 -
C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" /C vssadmin delete shadows /all /quiet & wmic shadowcopy delete3⤵
- Suspicious use of WriteProcessMemory
PID:2572 -
C:\Windows\system32\vssadmin.exevssadmin delete shadows /all /quiet4⤵
- Interacts with shadow copies
PID:2700
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C:\Windows\System32\Wbem\WMIC.exewmic shadowcopy delete4⤵
- Suspicious use of AdjustPrivilegeToken
PID:1932
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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:2728 -
C:\Windows\system32\bcdedit.exebcdedit /set {default} bootstatuspolicy ignoreallfailures4⤵
- Modifies boot configuration data using bcdedit
PID:2848
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C:\Windows\system32\bcdedit.exebcdedit /set {default} recoveryenabled no4⤵
- Modifies boot configuration data using bcdedit
PID:2404
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C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" /C wbadmin delete catalog -quiet3⤵
- Suspicious use of WriteProcessMemory
PID:3064 -
C:\Windows\system32\wbadmin.exewbadmin delete catalog -quiet4⤵
- Deletes backup catalog
PID:2352
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C:\Windows\system32\NOTEPAD.EXE"C:\Windows\system32\NOTEPAD.EXE" C:\Users\Admin\AppData\Roaming\note.txt3⤵
- Opens file in notepad (likely ransom note)
PID:472
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C:\Windows\system32\vssvc.exeC:\Windows\system32\vssvc.exe1⤵
- Suspicious use of AdjustPrivilegeToken
PID:2504
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C:\Windows\system32\wbengine.exe"C:\Windows\system32\wbengine.exe"1⤵
- Suspicious use of AdjustPrivilegeToken
PID:1608
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C:\Windows\System32\vdsldr.exeC:\Windows\System32\vdsldr.exe -Embedding1⤵PID:2168
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C:\Windows\System32\vds.exeC:\Windows\System32\vds.exe1⤵PID:1616
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
1KB
MD564f3f5d98bcfc1fc43977dc09fb76d96
SHA1ab309c9ca5704c10e047a61cdcae1f2a992551ca
SHA256ae61c48dcf49393c284fee53fc02d2eab496f927aa5fa452e334d1fbbac35b3a
SHA512905400dbe023e0003f16e54679820b9740b4af2ee8b381f3c37cf6c64367f686a996cf5c12f37cc3c67661260790fa715b7472666c3507411718cc97f92feec4
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Filesize
211KB
MD5a241612b5e52ca2a33c72ac7d12ac07e
SHA188cb40acc46ff18b0dfc0e283748e117f8fcc494
SHA2564c8a411ba653c73d9cf47886f3319ccab05373aa8024553a565eca0776397683
SHA512d4db8e1d4988390338fe0ae396b9140d67fbfa0c1e1c196c8f74c30bb9de4ec0f0d490f550abec49ff27514495c385a5b4b45479c6b2d2cae48b1d0853305b88
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Filesize
1B
MD5d1457b72c3fb323a2671125aef3eab5d
SHA15bab61eb53176449e25c2c82f172b82cb13ffb9d
SHA2568a8de823d5ed3e12746a62ef169bcf372be0ca44f0a1236abc35df05d96928e1
SHA512ca63c07ad35d8c9fb0c92d6146759b122d4ec5d3f67ebe2f30ddb69f9e6c9fd3bf31a5e408b08f1d4d9cd68120cced9e57f010bef3cde97653fed5470da7d1a0