Analysis
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max time kernel
119s -
max time network
120s -
platform
windows7_x64 -
resource
win7-20240708-en -
resource tags
arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system -
submitted
07-10-2024 00:01
Behavioral task
behavioral1
Sample
2024-10-06_27155b7a69ea88dc9419bc41c888c71c_wannacry.exe
Resource
win7-20240708-en
Behavioral task
behavioral2
Sample
2024-10-06_27155b7a69ea88dc9419bc41c888c71c_wannacry.exe
Resource
win10v2004-20240802-en
General
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Target
2024-10-06_27155b7a69ea88dc9419bc41c888c71c_wannacry.exe
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Size
266KB
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MD5
27155b7a69ea88dc9419bc41c888c71c
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SHA1
8b9ac105e975c9c22b731703dc080427f8973bf9
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SHA256
3f37eba38f0d399f33a98df657f9632d489dd10ba9741e2ba9e0b2056ef90124
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SHA512
75d08dd318ddc8a59dd65e5fcfc4a2f8ec8bd42a08b23acdc566d8adf73101f905b9d0c4631fa863f9b9dec92b996b742e95e1f28700689391181fc618bfc940
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SSDEEP
3072:2c9/eQxG5h7KMjlen9O0uE8o15OJlDUZbUVnWB3P1tPBLazb5YHPYvijQts1vlKC:2c9WQA70fO/yXBttPtFIEh1lVK/
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/2772-1-0x0000000000830000-0x0000000000878000-memory.dmp family_chaos behavioral1/files/0x000a00000001202b-4.dat family_chaos behavioral1/memory/2844-7-0x0000000000E30000-0x0000000000E78000-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 2676 bcdedit.exe 2596 bcdedit.exe -
pid Process 1032 wbadmin.exe -
Disables Task Manager via registry modification
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Drops startup file 3 IoCs
description ioc Process File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\read_it.txt Word2024t.exe File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Word2024t.url Word2024t.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\desktop.ini Word2024t.exe -
Executes dropped EXE 1 IoCs
pid Process 2844 Word2024t.exe -
Reads user/profile data of web browsers 3 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
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Drops desktop.ini file(s) 64 IoCs
description ioc Process File opened for modification C:\Users\Default\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Maintenance\Desktop.ini Word2024t.exe File opened for modification C:\Users\Admin\AppData\Local\Microsoft\Windows\History\desktop.ini Word2024t.exe File opened for modification C:\Users\Admin\Contacts\desktop.ini Word2024t.exe File opened for modification C:\Users\Admin\Favorites\Links\desktop.ini Word2024t.exe File opened for modification C:\Users\Default\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Accessories\Desktop.ini Word2024t.exe File opened for modification C:\Users\All Users\Microsoft\Windows\Start Menu\Programs\Accessories\System Tools\Desktop.ini Word2024t.exe File opened for modification C:\Users\All Users\Microsoft\Windows\Start Menu\Programs\Accessories\Tablet PC\Desktop.ini Word2024t.exe File opened for modification C:\Users\Default\AppData\Roaming\Microsoft\Internet Explorer\Quick Launch\desktop.ini Word2024t.exe File opened for modification C:\Users\Admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.IE5\4YENRJGC\desktop.ini Word2024t.exe File opened for modification C:\Users\Public\Downloads\desktop.ini Word2024t.exe File opened for modification C:\Users\All Users\Microsoft\Windows\Start Menu\Programs\Administrative Tools\desktop.ini Word2024t.exe File opened for modification C:\Users\All Users\Microsoft\Windows\Start Menu\Programs\Games\Desktop.ini Word2024t.exe File opened for modification C:\Users\Admin\AppData\Local\Microsoft\Feeds Cache\WO2S841R\desktop.ini Word2024t.exe File opened for modification C:\Users\Admin\Documents\desktop.ini Word2024t.exe File opened for modification C:\Users\All Users\Microsoft\Windows\Ringtones\desktop.ini Word2024t.exe File opened for modification C:\Users\Admin\Downloads\desktop.ini Word2024t.exe File opened for modification C:\Users\Admin\Saved Games\desktop.ini Word2024t.exe File opened for modification C:\Users\All Users\Microsoft\Windows\Start Menu\Programs\Accessories\Accessibility\Desktop.ini Word2024t.exe File opened for modification C:\Users\Public\Music\Sample Music\desktop.ini Word2024t.exe File opened for modification C:\Users\Admin\AppData\Local\Microsoft\Feeds Cache\488LG1SI\desktop.ini Word2024t.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Libraries\desktop.ini Word2024t.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Accessories\System Tools\Desktop.ini Word2024t.exe File opened for modification C:\Users\Admin\Pictures\desktop.ini Word2024t.exe File opened for modification C:\Users\Public\Libraries\desktop.ini Word2024t.exe File opened for modification C:\Users\Admin\AppData\Local\Microsoft\Feeds Cache\GGQPDAP3\desktop.ini Word2024t.exe File opened for modification C:\Users\Admin\AppData\Local\Microsoft\Windows\History\History.IE5\desktop.ini Word2024t.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Accessories\Accessibility\Desktop.ini Word2024t.exe File opened for modification C:\Users\Admin\Searches\desktop.ini Word2024t.exe File opened for modification C:\Users\Admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.IE5\L9BYGROA\desktop.ini Word2024t.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Internet Explorer\Quick Launch\desktop.ini Word2024t.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Internet Explorer\Quick Launch\User Pinned\TaskBar\desktop.ini Word2024t.exe File opened for modification C:\Users\All Users\Microsoft\Windows\Start Menu\Programs\Accessories\Desktop.ini Word2024t.exe File opened for modification C:\Users\All Users\Microsoft\Windows\Start Menu\Programs\Accessories\Windows PowerShell\desktop.ini Word2024t.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\SendTo\Desktop.ini Word2024t.exe File opened for modification C:\Users\Admin\Favorites\Links for United States\desktop.ini Word2024t.exe File opened for modification F:\$RECYCLE.BIN\S-1-5-21-1506706701-1246725540-2219210854-1000\desktop.ini Word2024t.exe File opened for modification C:\Users\Public\desktop.ini Word2024t.exe File opened for modification C:\Users\Public\Videos\desktop.ini Word2024t.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Maintenance\Desktop.ini Word2024t.exe File opened for modification C:\Users\All Users\Microsoft\Windows\Start Menu\desktop.ini Word2024t.exe File opened for modification C:\Users\Default\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Accessories\Accessibility\Desktop.ini Word2024t.exe File opened for modification C:\Users\Public\Desktop\desktop.ini Word2024t.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\desktop.ini Word2024t.exe File opened for modification C:\Users\Admin\Music\desktop.ini Word2024t.exe File opened for modification C:\Users\Default\AppData\Roaming\Microsoft\Windows\SendTo\Desktop.ini Word2024t.exe File opened for modification C:\Users\All Users\Microsoft\Windows\Start Menu\Programs\Maintenance\Desktop.ini Word2024t.exe File opened for modification C:\Users\Default\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Accessories\System Tools\Desktop.ini Word2024t.exe File opened for modification C:\Users\Public\Music\desktop.ini Word2024t.exe File opened for modification C:\Users\Public\Videos\Sample Videos\desktop.ini Word2024t.exe File opened for modification C:\Users\Admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.IE5\AKJVEZVY\desktop.ini Word2024t.exe File opened for modification C:\Users\Admin\Desktop\desktop.ini Word2024t.exe File opened for modification C:\Users\Admin\Videos\desktop.ini Word2024t.exe File opened for modification C:\Users\All Users\Microsoft\Windows\Start Menu\Programs\desktop.ini Word2024t.exe File opened for modification C:\Users\Public\Documents\desktop.ini Word2024t.exe File opened for modification C:\Users\Public\Pictures\desktop.ini Word2024t.exe File opened for modification C:\Users\Public\Recorded TV\Sample Media\desktop.ini Word2024t.exe File opened for modification C:\Users\Admin\AppData\Local\Microsoft\Windows\Burn\Burn\desktop.ini Word2024t.exe File opened for modification C:\Users\Admin\AppData\Local\Microsoft\Windows Mail\Stationery\Desktop.ini Word2024t.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\desktop.ini Word2024t.exe File opened for modification C:\Users\Public\Pictures\Sample Pictures\desktop.ini Word2024t.exe File opened for modification C:\Users\Public\Recorded TV\desktop.ini Word2024t.exe File opened for modification C:\Users\Admin\AppData\Local\Microsoft\Feeds Cache\desktop.ini Word2024t.exe File opened for modification C:\Users\Admin\AppData\Local\Microsoft\Feeds Cache\ALUNAOYI\desktop.ini Word2024t.exe File opened for modification C:\Users\Admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.IE5\desktop.ini Word2024t.exe -
Sets desktop wallpaper using registry 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-1506706701-1246725540-2219210854-1000\Control Panel\Desktop\Wallpaper = "C:\\Users\\Admin\\AppData\\Local\\Temp\\e2wsxwyo3.jpg" Word2024t.exe Set value (str) \REGISTRY\USER\S-1-5-21-1506706701-1246725540-2219210854-1000\Control Panel\Desktop\Wallpaper = "C:\\Users\\Admin\\Pictures\\My Wallpaper.jpg" Word2024t.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 2616 vssadmin.exe -
Opens file in notepad (likely ransom note) 1 IoCs
pid Process 2360 NOTEPAD.EXE -
Suspicious behavior: AddClipboardFormatListener 1 IoCs
pid Process 2844 Word2024t.exe -
Suspicious behavior: EnumeratesProcesses 7 IoCs
pid Process 2772 2024-10-06_27155b7a69ea88dc9419bc41c888c71c_wannacry.exe 2772 2024-10-06_27155b7a69ea88dc9419bc41c888c71c_wannacry.exe 2772 2024-10-06_27155b7a69ea88dc9419bc41c888c71c_wannacry.exe 2844 Word2024t.exe 2844 Word2024t.exe 2844 Word2024t.exe 2844 Word2024t.exe -
Suspicious use of AdjustPrivilegeToken 48 IoCs
description pid Process Token: SeDebugPrivilege 2772 2024-10-06_27155b7a69ea88dc9419bc41c888c71c_wannacry.exe Token: SeDebugPrivilege 2844 Word2024t.exe Token: SeBackupPrivilege 2688 vssvc.exe Token: SeRestorePrivilege 2688 vssvc.exe Token: SeAuditPrivilege 2688 vssvc.exe Token: SeIncreaseQuotaPrivilege 2184 WMIC.exe Token: SeSecurityPrivilege 2184 WMIC.exe Token: SeTakeOwnershipPrivilege 2184 WMIC.exe Token: SeLoadDriverPrivilege 2184 WMIC.exe Token: SeSystemProfilePrivilege 2184 WMIC.exe Token: SeSystemtimePrivilege 2184 WMIC.exe Token: SeProfSingleProcessPrivilege 2184 WMIC.exe Token: SeIncBasePriorityPrivilege 2184 WMIC.exe Token: SeCreatePagefilePrivilege 2184 WMIC.exe Token: SeBackupPrivilege 2184 WMIC.exe Token: SeRestorePrivilege 2184 WMIC.exe Token: SeShutdownPrivilege 2184 WMIC.exe Token: SeDebugPrivilege 2184 WMIC.exe Token: SeSystemEnvironmentPrivilege 2184 WMIC.exe Token: SeRemoteShutdownPrivilege 2184 WMIC.exe Token: SeUndockPrivilege 2184 WMIC.exe Token: SeManageVolumePrivilege 2184 WMIC.exe Token: 33 2184 WMIC.exe Token: 34 2184 WMIC.exe Token: 35 2184 WMIC.exe Token: SeIncreaseQuotaPrivilege 2184 WMIC.exe Token: SeSecurityPrivilege 2184 WMIC.exe Token: SeTakeOwnershipPrivilege 2184 WMIC.exe Token: SeLoadDriverPrivilege 2184 WMIC.exe Token: SeSystemProfilePrivilege 2184 WMIC.exe Token: SeSystemtimePrivilege 2184 WMIC.exe Token: SeProfSingleProcessPrivilege 2184 WMIC.exe Token: SeIncBasePriorityPrivilege 2184 WMIC.exe Token: SeCreatePagefilePrivilege 2184 WMIC.exe Token: SeBackupPrivilege 2184 WMIC.exe Token: SeRestorePrivilege 2184 WMIC.exe Token: SeShutdownPrivilege 2184 WMIC.exe Token: SeDebugPrivilege 2184 WMIC.exe Token: SeSystemEnvironmentPrivilege 2184 WMIC.exe Token: SeRemoteShutdownPrivilege 2184 WMIC.exe Token: SeUndockPrivilege 2184 WMIC.exe Token: SeManageVolumePrivilege 2184 WMIC.exe Token: 33 2184 WMIC.exe Token: 34 2184 WMIC.exe Token: 35 2184 WMIC.exe Token: SeBackupPrivilege 1932 wbengine.exe Token: SeRestorePrivilege 1932 wbengine.exe Token: SeSecurityPrivilege 1932 wbengine.exe -
Suspicious use of WriteProcessMemory 30 IoCs
description pid Process procid_target PID 2772 wrote to memory of 2844 2772 2024-10-06_27155b7a69ea88dc9419bc41c888c71c_wannacry.exe 30 PID 2772 wrote to memory of 2844 2772 2024-10-06_27155b7a69ea88dc9419bc41c888c71c_wannacry.exe 30 PID 2772 wrote to memory of 2844 2772 2024-10-06_27155b7a69ea88dc9419bc41c888c71c_wannacry.exe 30 PID 2844 wrote to memory of 2752 2844 Word2024t.exe 31 PID 2844 wrote to memory of 2752 2844 Word2024t.exe 31 PID 2844 wrote to memory of 2752 2844 Word2024t.exe 31 PID 2752 wrote to memory of 2616 2752 cmd.exe 33 PID 2752 wrote to memory of 2616 2752 cmd.exe 33 PID 2752 wrote to memory of 2616 2752 cmd.exe 33 PID 2752 wrote to memory of 2184 2752 cmd.exe 36 PID 2752 wrote to memory of 2184 2752 cmd.exe 36 PID 2752 wrote to memory of 2184 2752 cmd.exe 36 PID 2844 wrote to memory of 2068 2844 Word2024t.exe 38 PID 2844 wrote to memory of 2068 2844 Word2024t.exe 38 PID 2844 wrote to memory of 2068 2844 Word2024t.exe 38 PID 2068 wrote to memory of 2676 2068 cmd.exe 40 PID 2068 wrote to memory of 2676 2068 cmd.exe 40 PID 2068 wrote to memory of 2676 2068 cmd.exe 40 PID 2068 wrote to memory of 2596 2068 cmd.exe 41 PID 2068 wrote to memory of 2596 2068 cmd.exe 41 PID 2068 wrote to memory of 2596 2068 cmd.exe 41 PID 2844 wrote to memory of 2960 2844 Word2024t.exe 42 PID 2844 wrote to memory of 2960 2844 Word2024t.exe 42 PID 2844 wrote to memory of 2960 2844 Word2024t.exe 42 PID 2960 wrote to memory of 1032 2960 cmd.exe 44 PID 2960 wrote to memory of 1032 2960 cmd.exe 44 PID 2960 wrote to memory of 1032 2960 cmd.exe 44 PID 2844 wrote to memory of 2360 2844 Word2024t.exe 49 PID 2844 wrote to memory of 2360 2844 Word2024t.exe 49 PID 2844 wrote to memory of 2360 2844 Word2024t.exe 49 -
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\2024-10-06_27155b7a69ea88dc9419bc41c888c71c_wannacry.exe"C:\Users\Admin\AppData\Local\Temp\2024-10-06_27155b7a69ea88dc9419bc41c888c71c_wannacry.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2772 -
C:\Users\Admin\AppData\Roaming\Word2024t.exe"C:\Users\Admin\AppData\Roaming\Word2024t.exe"2⤵
- Drops startup file
- Executes dropped EXE
- 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:2844 -
C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" /C vssadmin delete shadows /all /quiet & wmic shadowcopy delete3⤵
- Suspicious use of WriteProcessMemory
PID:2752 -
C:\Windows\system32\vssadmin.exevssadmin delete shadows /all /quiet4⤵
- Interacts with shadow copies
PID:2616
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C:\Windows\System32\Wbem\WMIC.exewmic shadowcopy delete4⤵
- Suspicious use of AdjustPrivilegeToken
PID:2184
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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:2068 -
C:\Windows\system32\bcdedit.exebcdedit /set {default} bootstatuspolicy ignoreallfailures4⤵
- Modifies boot configuration data using bcdedit
PID:2676
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C:\Windows\system32\bcdedit.exebcdedit /set {default} recoveryenabled no4⤵
- Modifies boot configuration data using bcdedit
PID:2596
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C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" /C wbadmin delete catalog -quiet3⤵
- Suspicious use of WriteProcessMemory
PID:2960 -
C:\Windows\system32\wbadmin.exewbadmin delete catalog -quiet4⤵
- Deletes backup catalog
PID:1032
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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:2360
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C:\Windows\system32\vssvc.exeC:\Windows\system32\vssvc.exe1⤵
- Suspicious use of AdjustPrivilegeToken
PID:2688
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C:\Windows\system32\wbengine.exe"C:\Windows\system32\wbengine.exe"1⤵
- Suspicious use of AdjustPrivilegeToken
PID:1932
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C:\Windows\System32\vdsldr.exeC:\Windows\System32\vdsldr.exe -Embedding1⤵PID:2704
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C:\Windows\System32\vds.exeC:\Windows\System32\vds.exe1⤵PID:2516
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
459B
MD5486fa8802a705b9d3924c9bc97a7809c
SHA1ab9b7e3446580a01308f8479cb9b2af079e2ff89
SHA2563ea88fe5bf3f08691979a1022783f63c4cbe73b7f83c6ebd908dc1e897f6aacf
SHA5122031713a347822f9f30d1defaa45e4c96fbf4712793b41dcaa0e15607fd310e7d01b98e05a0d86dd9685b8a5b4a5ac054b27a8b0aadf17a1632690c63a310cf2
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Filesize
1B
MD5d1457b72c3fb323a2671125aef3eab5d
SHA15bab61eb53176449e25c2c82f172b82cb13ffb9d
SHA2568a8de823d5ed3e12746a62ef169bcf372be0ca44f0a1236abc35df05d96928e1
SHA512ca63c07ad35d8c9fb0c92d6146759b122d4ec5d3f67ebe2f30ddb69f9e6c9fd3bf31a5e408b08f1d4d9cd68120cced9e57f010bef3cde97653fed5470da7d1a0
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Filesize
266KB
MD527155b7a69ea88dc9419bc41c888c71c
SHA18b9ac105e975c9c22b731703dc080427f8973bf9
SHA2563f37eba38f0d399f33a98df657f9632d489dd10ba9741e2ba9e0b2056ef90124
SHA51275d08dd318ddc8a59dd65e5fcfc4a2f8ec8bd42a08b23acdc566d8adf73101f905b9d0c4631fa863f9b9dec92b996b742e95e1f28700689391181fc618bfc940