Analysis
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max time kernel
117s -
max time network
117s -
platform
windows7_x64 -
resource
win7-20240708-en -
resource tags
arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system -
submitted
07-10-2024 00:04
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/1292-1-0x0000000001240000-0x0000000001288000-memory.dmp family_chaos behavioral1/files/0x000f000000012782-5.dat family_chaos behavioral1/memory/1920-7-0x00000000011C0000-0x0000000001208000-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 2232 bcdedit.exe 2580 bcdedit.exe -
pid Process 1532 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\Word2024t.url Word2024t.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\desktop.ini Word2024t.exe File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\read_it.txt Word2024t.exe -
Executes dropped EXE 1 IoCs
pid Process 1920 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\Admin\Music\desktop.ini Word2024t.exe File opened for modification C:\Users\Admin\Pictures\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\All Users\Microsoft\Windows\Start Menu\Programs\Games\Desktop.ini Word2024t.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\desktop.ini Word2024t.exe File opened for modification C:\Users\Admin\Contacts\desktop.ini Word2024t.exe File opened for modification C:\Users\Admin\Favorites\desktop.ini Word2024t.exe File opened for modification C:\Users\Admin\Favorites\Links for United States\desktop.ini Word2024t.exe File opened for modification C:\Users\Public\Music\Sample 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\Burn\Burn\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\Accessibility\Desktop.ini Word2024t.exe File opened for modification C:\Users\Public\Pictures\Sample Pictures\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\All Users\Microsoft\Windows\Start Menu\Programs\Startup\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\Public\Recorded TV\desktop.ini Word2024t.exe File opened for modification C:\Users\Admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.IE5\L2BFB2JG\desktop.ini Word2024t.exe File opened for modification C:\Users\Admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.IE5\R9C9T5AL\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\Admin\Searches\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\Public\Music\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\History\desktop.ini Word2024t.exe 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\Public\Pictures\desktop.ini Word2024t.exe File opened for modification C:\Users\Admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.IE5\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\All Users\Microsoft\Windows\Start Menu\Programs\Accessories\Accessibility\Desktop.ini Word2024t.exe File opened for modification C:\Users\Public\Documents\desktop.ini Word2024t.exe File opened for modification F:\$RECYCLE.BIN\S-1-5-21-3551809350-4263495960-1443967649-1000\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\All Users\Microsoft\Windows\Start Menu\Programs\Maintenance\Desktop.ini Word2024t.exe File opened for modification C:\Users\Public\Downloads\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\All Users\Microsoft\Windows\Start Menu\Programs\Administrative Tools\desktop.ini Word2024t.exe File opened for modification C:\Users\Public\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\Default\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Accessories\Desktop.ini Word2024t.exe File opened for modification C:\Users\Public\Videos\desktop.ini Word2024t.exe File opened for modification C:\Users\Admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\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\Windows\Libraries\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\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Accessories\System Tools\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\desktop.ini Word2024t.exe File opened for modification C:\Users\Admin\AppData\Local\Microsoft\Feeds Cache\63WZ73PY\desktop.ini Word2024t.exe File opened for modification C:\Users\Admin\AppData\Local\Microsoft\Feeds Cache\YQ90JXIE\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\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\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\7CO3PKGI\desktop.ini Word2024t.exe File opened for modification C:\Users\Admin\Videos\desktop.ini Word2024t.exe File opened for modification C:\Users\Admin\Documents\desktop.ini Word2024t.exe File opened for modification C:\Users\Admin\Downloads\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\Windows\Start Menu\Programs\Accessories\System Tools\Desktop.ini Word2024t.exe File opened for modification C:\Users\Admin\AppData\Local\Microsoft\Feeds Cache\IQBL5G2Z\desktop.ini Word2024t.exe File opened for modification C:\Users\Admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.IE5\MYC3PENY\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\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Accessories\Desktop.ini Word2024t.exe -
Sets desktop wallpaper using registry 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-3551809350-4263495960-1443967649-1000\Control Panel\Desktop\Wallpaper = "C:\\Users\\Admin\\AppData\\Local\\Temp\\fj1kngr00.jpg" Word2024t.exe Set value (str) \REGISTRY\USER\S-1-5-21-3551809350-4263495960-1443967649-1000\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 2864 vssadmin.exe -
Opens file in notepad (likely ransom note) 1 IoCs
pid Process 2712 NOTEPAD.EXE -
Suspicious behavior: AddClipboardFormatListener 1 IoCs
pid Process 1920 Word2024t.exe -
Suspicious behavior: EnumeratesProcesses 7 IoCs
pid Process 1292 2024-10-06_27155b7a69ea88dc9419bc41c888c71c_wannacry.exe 1292 2024-10-06_27155b7a69ea88dc9419bc41c888c71c_wannacry.exe 1292 2024-10-06_27155b7a69ea88dc9419bc41c888c71c_wannacry.exe 1920 Word2024t.exe 1920 Word2024t.exe 1920 Word2024t.exe 1920 Word2024t.exe -
Suspicious use of AdjustPrivilegeToken 48 IoCs
description pid Process Token: SeDebugPrivilege 1292 2024-10-06_27155b7a69ea88dc9419bc41c888c71c_wannacry.exe Token: SeDebugPrivilege 1920 Word2024t.exe Token: SeBackupPrivilege 2172 vssvc.exe Token: SeRestorePrivilege 2172 vssvc.exe Token: SeAuditPrivilege 2172 vssvc.exe Token: SeIncreaseQuotaPrivilege 2812 WMIC.exe Token: SeSecurityPrivilege 2812 WMIC.exe Token: SeTakeOwnershipPrivilege 2812 WMIC.exe Token: SeLoadDriverPrivilege 2812 WMIC.exe Token: SeSystemProfilePrivilege 2812 WMIC.exe Token: SeSystemtimePrivilege 2812 WMIC.exe Token: SeProfSingleProcessPrivilege 2812 WMIC.exe Token: SeIncBasePriorityPrivilege 2812 WMIC.exe Token: SeCreatePagefilePrivilege 2812 WMIC.exe Token: SeBackupPrivilege 2812 WMIC.exe Token: SeRestorePrivilege 2812 WMIC.exe Token: SeShutdownPrivilege 2812 WMIC.exe Token: SeDebugPrivilege 2812 WMIC.exe Token: SeSystemEnvironmentPrivilege 2812 WMIC.exe Token: SeRemoteShutdownPrivilege 2812 WMIC.exe Token: SeUndockPrivilege 2812 WMIC.exe Token: SeManageVolumePrivilege 2812 WMIC.exe Token: 33 2812 WMIC.exe Token: 34 2812 WMIC.exe Token: 35 2812 WMIC.exe Token: SeIncreaseQuotaPrivilege 2812 WMIC.exe Token: SeSecurityPrivilege 2812 WMIC.exe Token: SeTakeOwnershipPrivilege 2812 WMIC.exe Token: SeLoadDriverPrivilege 2812 WMIC.exe Token: SeSystemProfilePrivilege 2812 WMIC.exe Token: SeSystemtimePrivilege 2812 WMIC.exe Token: SeProfSingleProcessPrivilege 2812 WMIC.exe Token: SeIncBasePriorityPrivilege 2812 WMIC.exe Token: SeCreatePagefilePrivilege 2812 WMIC.exe Token: SeBackupPrivilege 2812 WMIC.exe Token: SeRestorePrivilege 2812 WMIC.exe Token: SeShutdownPrivilege 2812 WMIC.exe Token: SeDebugPrivilege 2812 WMIC.exe Token: SeSystemEnvironmentPrivilege 2812 WMIC.exe Token: SeRemoteShutdownPrivilege 2812 WMIC.exe Token: SeUndockPrivilege 2812 WMIC.exe Token: SeManageVolumePrivilege 2812 WMIC.exe Token: 33 2812 WMIC.exe Token: 34 2812 WMIC.exe Token: 35 2812 WMIC.exe Token: SeBackupPrivilege 2724 wbengine.exe Token: SeRestorePrivilege 2724 wbengine.exe Token: SeSecurityPrivilege 2724 wbengine.exe -
Suspicious use of WriteProcessMemory 30 IoCs
description pid Process procid_target PID 1292 wrote to memory of 1920 1292 2024-10-06_27155b7a69ea88dc9419bc41c888c71c_wannacry.exe 31 PID 1292 wrote to memory of 1920 1292 2024-10-06_27155b7a69ea88dc9419bc41c888c71c_wannacry.exe 31 PID 1292 wrote to memory of 1920 1292 2024-10-06_27155b7a69ea88dc9419bc41c888c71c_wannacry.exe 31 PID 1920 wrote to memory of 1516 1920 Word2024t.exe 32 PID 1920 wrote to memory of 1516 1920 Word2024t.exe 32 PID 1920 wrote to memory of 1516 1920 Word2024t.exe 32 PID 1516 wrote to memory of 2864 1516 cmd.exe 34 PID 1516 wrote to memory of 2864 1516 cmd.exe 34 PID 1516 wrote to memory of 2864 1516 cmd.exe 34 PID 1516 wrote to memory of 2812 1516 cmd.exe 37 PID 1516 wrote to memory of 2812 1516 cmd.exe 37 PID 1516 wrote to memory of 2812 1516 cmd.exe 37 PID 1920 wrote to memory of 2596 1920 Word2024t.exe 39 PID 1920 wrote to memory of 2596 1920 Word2024t.exe 39 PID 1920 wrote to memory of 2596 1920 Word2024t.exe 39 PID 2596 wrote to memory of 2232 2596 cmd.exe 41 PID 2596 wrote to memory of 2232 2596 cmd.exe 41 PID 2596 wrote to memory of 2232 2596 cmd.exe 41 PID 2596 wrote to memory of 2580 2596 cmd.exe 42 PID 2596 wrote to memory of 2580 2596 cmd.exe 42 PID 2596 wrote to memory of 2580 2596 cmd.exe 42 PID 1920 wrote to memory of 2152 1920 Word2024t.exe 43 PID 1920 wrote to memory of 2152 1920 Word2024t.exe 43 PID 1920 wrote to memory of 2152 1920 Word2024t.exe 43 PID 2152 wrote to memory of 1532 2152 cmd.exe 45 PID 2152 wrote to memory of 1532 2152 cmd.exe 45 PID 2152 wrote to memory of 1532 2152 cmd.exe 45 PID 1920 wrote to memory of 2712 1920 Word2024t.exe 50 PID 1920 wrote to memory of 2712 1920 Word2024t.exe 50 PID 1920 wrote to memory of 2712 1920 Word2024t.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\2024-10-06_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:1292 -
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:1920 -
C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" /C vssadmin delete shadows /all /quiet & wmic shadowcopy delete3⤵
- Suspicious use of WriteProcessMemory
PID:1516 -
C:\Windows\system32\vssadmin.exevssadmin delete shadows /all /quiet4⤵
- Interacts with shadow copies
PID:2864
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C:\Windows\System32\Wbem\WMIC.exewmic shadowcopy delete4⤵
- Suspicious use of AdjustPrivilegeToken
PID:2812
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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:2596 -
C:\Windows\system32\bcdedit.exebcdedit /set {default} bootstatuspolicy ignoreallfailures4⤵
- Modifies boot configuration data using bcdedit
PID:2232
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C:\Windows\system32\bcdedit.exebcdedit /set {default} recoveryenabled no4⤵
- Modifies boot configuration data using bcdedit
PID:2580
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C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" /C wbadmin delete catalog -quiet3⤵
- Suspicious use of WriteProcessMemory
PID:2152 -
C:\Windows\system32\wbadmin.exewbadmin delete catalog -quiet4⤵
- Deletes backup catalog
PID:1532
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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:2712
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C:\Windows\system32\vssvc.exeC:\Windows\system32\vssvc.exe1⤵
- Suspicious use of AdjustPrivilegeToken
PID:2172
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C:\Windows\system32\wbengine.exe"C:\Windows\system32\wbengine.exe"1⤵
- Suspicious use of AdjustPrivilegeToken
PID:2724
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C:\Windows\System32\vdsldr.exeC:\Windows\System32\vdsldr.exe -Embedding1⤵PID:1940
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C:\Windows\System32\vds.exeC:\Windows\System32\vds.exe1⤵PID:2592
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