Analysis
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max time kernel
149s -
max time network
151s -
platform
windows10-2004_x64 -
resource
win10v2004-20240412-en -
resource tags
arch:x64arch:x86image:win10v2004-20240412-enlocale:en-usos:windows10-2004-x64system -
submitted
24-04-2024 18:02
Behavioral task
behavioral1
Sample
2024-04-24_ee711be5ac7e4d382c21cb6cb3f9631b_chaos_destroyer_wannacry.exe
Resource
win7-20231129-en
Behavioral task
behavioral2
Sample
2024-04-24_ee711be5ac7e4d382c21cb6cb3f9631b_chaos_destroyer_wannacry.exe
Resource
win10v2004-20240412-en
General
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Target
2024-04-24_ee711be5ac7e4d382c21cb6cb3f9631b_chaos_destroyer_wannacry.exe
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Size
23KB
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MD5
ee711be5ac7e4d382c21cb6cb3f9631b
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SHA1
df2ad2e13d1160a900e730eeec7adc6503891088
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SHA256
96954af5f3a422d26951296adeb8d9a2cae1ada61f63ee1a2c884a4ef938cf87
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SHA512
bbd714ecbe31a75dd6d661cbcc7926e5cf2b7e0858f3931dc8ddd42d7254849e1b9a942f9ccc1140bd9f376a0149f4d79f1ef2e21b5aa45173c6f87e53fc12e2
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SSDEEP
384:H3MLWHn3kI3fmIOyERMpOsbW+ATLJIr91Crxbo9deU:zn3kIYy6Mpzi9Ir9SxboveU
Malware Config
Extracted
C:\Users\Admin\Desktop\read_it.txt
chaos
3Gq3M3xz5dstUaCn7iLLxLRTBMs3BLKwPn
Signatures
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Chaos
Ransomware family first seen in June 2021.
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Chaos Ransomware 2 IoCs
resource yara_rule behavioral2/memory/4780-0-0x0000000000670000-0x000000000067C000-memory.dmp family_chaos behavioral2/files/0x000800000002341a-6.dat 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 2 IoCs
resource yara_rule behavioral2/memory/4780-0-0x0000000000670000-0x000000000067C000-memory.dmp INDICATOR_SUSPICIOUS_GENRansomware behavioral2/files/0x000800000002341a-6.dat INDICATOR_SUSPICIOUS_GENRansomware -
Modifies boot configuration data using bcdedit 1 TTPs 2 IoCs
pid Process 2592 bcdedit.exe 3216 bcdedit.exe -
pid Process 4956 wbadmin.exe -
Checks computer location settings 2 TTPs 2 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-355664440-2199602304-1223909400-1000\Control Panel\International\Geo\Nation 2024-04-24_ee711be5ac7e4d382c21cb6cb3f9631b_chaos_destroyer_wannacry.exe Key value queried \REGISTRY\USER\S-1-5-21-355664440-2199602304-1223909400-1000\Control Panel\International\Geo\Nation svchost.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 1216 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\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\Libraries\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\Maintenance\Desktop.ini svchost.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\System Tools\Desktop.ini svchost.exe File opened for modification F:\$RECYCLE.BIN\S-1-5-21-355664440-2199602304-1223909400-1000\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\Roaming\Microsoft\Internet Explorer\Quick Launch\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\Public\Desktop\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Documents\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Downloads\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\AccountPictures\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\Public\Documents\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Links\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\Accessibility\desktop.ini svchost.exe File opened for modification C:\Users\Public\Videos\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Pictures\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Pictures\Camera Roll\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Searches\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\Pictures\Saved Pictures\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Saved Games\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\Public\Music\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\Admin\Contacts\desktop.ini svchost.exe File opened for modification C:\Users\Admin\OneDrive\desktop.ini svchost.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Checks SCSI registry key(s) 3 TTPs 4 IoCs
SCSI information is often read in order to detect sandboxing environments.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\DISK&VEN_DADY&PROD_HARDDISK\4&215468A5&0&000000 vds.exe Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\Disk&Ven_DADY&Prod_HARDDISK\4&215468a5&0&000000\FriendlyName vds.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\CDROM&VEN_QEMU&PROD_QEMU_DVD-ROM\4&215468A5&0&010000 vds.exe Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\CdRom&Ven_QEMU&Prod_QEMU_DVD-ROM\4&215468a5&0&010000\FriendlyName vds.exe -
Interacts with shadow copies 2 TTPs 1 IoCs
Shadow copies are often targeted by ransomware to inhibit system recovery.
pid Process 980 vssadmin.exe -
Modifies registry class 1 IoCs
description ioc Process Key created \REGISTRY\USER\S-1-5-21-355664440-2199602304-1223909400-1000_Classes\Local Settings svchost.exe -
Opens file in notepad (likely ransom note) 1 IoCs
pid Process 3844 NOTEPAD.EXE -
Suspicious behavior: AddClipboardFormatListener 1 IoCs
pid Process 1216 svchost.exe -
Suspicious behavior: EnumeratesProcesses 48 IoCs
pid Process 4780 2024-04-24_ee711be5ac7e4d382c21cb6cb3f9631b_chaos_destroyer_wannacry.exe 4780 2024-04-24_ee711be5ac7e4d382c21cb6cb3f9631b_chaos_destroyer_wannacry.exe 4780 2024-04-24_ee711be5ac7e4d382c21cb6cb3f9631b_chaos_destroyer_wannacry.exe 4780 2024-04-24_ee711be5ac7e4d382c21cb6cb3f9631b_chaos_destroyer_wannacry.exe 4780 2024-04-24_ee711be5ac7e4d382c21cb6cb3f9631b_chaos_destroyer_wannacry.exe 4780 2024-04-24_ee711be5ac7e4d382c21cb6cb3f9631b_chaos_destroyer_wannacry.exe 4780 2024-04-24_ee711be5ac7e4d382c21cb6cb3f9631b_chaos_destroyer_wannacry.exe 4780 2024-04-24_ee711be5ac7e4d382c21cb6cb3f9631b_chaos_destroyer_wannacry.exe 4780 2024-04-24_ee711be5ac7e4d382c21cb6cb3f9631b_chaos_destroyer_wannacry.exe 4780 2024-04-24_ee711be5ac7e4d382c21cb6cb3f9631b_chaos_destroyer_wannacry.exe 4780 2024-04-24_ee711be5ac7e4d382c21cb6cb3f9631b_chaos_destroyer_wannacry.exe 4780 2024-04-24_ee711be5ac7e4d382c21cb6cb3f9631b_chaos_destroyer_wannacry.exe 4780 2024-04-24_ee711be5ac7e4d382c21cb6cb3f9631b_chaos_destroyer_wannacry.exe 4780 2024-04-24_ee711be5ac7e4d382c21cb6cb3f9631b_chaos_destroyer_wannacry.exe 4780 2024-04-24_ee711be5ac7e4d382c21cb6cb3f9631b_chaos_destroyer_wannacry.exe 4780 2024-04-24_ee711be5ac7e4d382c21cb6cb3f9631b_chaos_destroyer_wannacry.exe 4780 2024-04-24_ee711be5ac7e4d382c21cb6cb3f9631b_chaos_destroyer_wannacry.exe 4780 2024-04-24_ee711be5ac7e4d382c21cb6cb3f9631b_chaos_destroyer_wannacry.exe 4780 2024-04-24_ee711be5ac7e4d382c21cb6cb3f9631b_chaos_destroyer_wannacry.exe 4780 2024-04-24_ee711be5ac7e4d382c21cb6cb3f9631b_chaos_destroyer_wannacry.exe 4780 2024-04-24_ee711be5ac7e4d382c21cb6cb3f9631b_chaos_destroyer_wannacry.exe 4780 2024-04-24_ee711be5ac7e4d382c21cb6cb3f9631b_chaos_destroyer_wannacry.exe 4780 2024-04-24_ee711be5ac7e4d382c21cb6cb3f9631b_chaos_destroyer_wannacry.exe 4780 2024-04-24_ee711be5ac7e4d382c21cb6cb3f9631b_chaos_destroyer_wannacry.exe 1216 svchost.exe 1216 svchost.exe 1216 svchost.exe 1216 svchost.exe 1216 svchost.exe 1216 svchost.exe 1216 svchost.exe 1216 svchost.exe 1216 svchost.exe 1216 svchost.exe 1216 svchost.exe 1216 svchost.exe 1216 svchost.exe 1216 svchost.exe 1216 svchost.exe 1216 svchost.exe 1216 svchost.exe 1216 svchost.exe 1216 svchost.exe 1216 svchost.exe 1216 svchost.exe 1216 svchost.exe 1216 svchost.exe 1216 svchost.exe -
Suspicious use of AdjustPrivilegeToken 50 IoCs
description pid Process Token: SeDebugPrivilege 4780 2024-04-24_ee711be5ac7e4d382c21cb6cb3f9631b_chaos_destroyer_wannacry.exe Token: SeDebugPrivilege 1216 svchost.exe Token: SeBackupPrivilege 4840 vssvc.exe Token: SeRestorePrivilege 4840 vssvc.exe Token: SeAuditPrivilege 4840 vssvc.exe Token: SeIncreaseQuotaPrivilege 4928 WMIC.exe Token: SeSecurityPrivilege 4928 WMIC.exe Token: SeTakeOwnershipPrivilege 4928 WMIC.exe Token: SeLoadDriverPrivilege 4928 WMIC.exe Token: SeSystemProfilePrivilege 4928 WMIC.exe Token: SeSystemtimePrivilege 4928 WMIC.exe Token: SeProfSingleProcessPrivilege 4928 WMIC.exe Token: SeIncBasePriorityPrivilege 4928 WMIC.exe Token: SeCreatePagefilePrivilege 4928 WMIC.exe Token: SeBackupPrivilege 4928 WMIC.exe Token: SeRestorePrivilege 4928 WMIC.exe Token: SeShutdownPrivilege 4928 WMIC.exe Token: SeDebugPrivilege 4928 WMIC.exe Token: SeSystemEnvironmentPrivilege 4928 WMIC.exe Token: SeRemoteShutdownPrivilege 4928 WMIC.exe Token: SeUndockPrivilege 4928 WMIC.exe Token: SeManageVolumePrivilege 4928 WMIC.exe Token: 33 4928 WMIC.exe Token: 34 4928 WMIC.exe Token: 35 4928 WMIC.exe Token: 36 4928 WMIC.exe Token: SeIncreaseQuotaPrivilege 4928 WMIC.exe Token: SeSecurityPrivilege 4928 WMIC.exe Token: SeTakeOwnershipPrivilege 4928 WMIC.exe Token: SeLoadDriverPrivilege 4928 WMIC.exe Token: SeSystemProfilePrivilege 4928 WMIC.exe Token: SeSystemtimePrivilege 4928 WMIC.exe Token: SeProfSingleProcessPrivilege 4928 WMIC.exe Token: SeIncBasePriorityPrivilege 4928 WMIC.exe Token: SeCreatePagefilePrivilege 4928 WMIC.exe Token: SeBackupPrivilege 4928 WMIC.exe Token: SeRestorePrivilege 4928 WMIC.exe Token: SeShutdownPrivilege 4928 WMIC.exe Token: SeDebugPrivilege 4928 WMIC.exe Token: SeSystemEnvironmentPrivilege 4928 WMIC.exe Token: SeRemoteShutdownPrivilege 4928 WMIC.exe Token: SeUndockPrivilege 4928 WMIC.exe Token: SeManageVolumePrivilege 4928 WMIC.exe Token: 33 4928 WMIC.exe Token: 34 4928 WMIC.exe Token: 35 4928 WMIC.exe Token: 36 4928 WMIC.exe Token: SeBackupPrivilege 2768 wbengine.exe Token: SeRestorePrivilege 2768 wbengine.exe Token: SeSecurityPrivilege 2768 wbengine.exe -
Suspicious use of WriteProcessMemory 20 IoCs
description pid Process procid_target PID 4780 wrote to memory of 1216 4780 2024-04-24_ee711be5ac7e4d382c21cb6cb3f9631b_chaos_destroyer_wannacry.exe 88 PID 4780 wrote to memory of 1216 4780 2024-04-24_ee711be5ac7e4d382c21cb6cb3f9631b_chaos_destroyer_wannacry.exe 88 PID 1216 wrote to memory of 4732 1216 svchost.exe 89 PID 1216 wrote to memory of 4732 1216 svchost.exe 89 PID 4732 wrote to memory of 980 4732 cmd.exe 91 PID 4732 wrote to memory of 980 4732 cmd.exe 91 PID 4732 wrote to memory of 4928 4732 cmd.exe 94 PID 4732 wrote to memory of 4928 4732 cmd.exe 94 PID 1216 wrote to memory of 1920 1216 svchost.exe 96 PID 1216 wrote to memory of 1920 1216 svchost.exe 96 PID 1920 wrote to memory of 2592 1920 cmd.exe 98 PID 1920 wrote to memory of 2592 1920 cmd.exe 98 PID 1920 wrote to memory of 3216 1920 cmd.exe 99 PID 1920 wrote to memory of 3216 1920 cmd.exe 99 PID 1216 wrote to memory of 2140 1216 svchost.exe 100 PID 1216 wrote to memory of 2140 1216 svchost.exe 100 PID 2140 wrote to memory of 4956 2140 cmd.exe 102 PID 2140 wrote to memory of 4956 2140 cmd.exe 102 PID 1216 wrote to memory of 3844 1216 svchost.exe 108 PID 1216 wrote to memory of 3844 1216 svchost.exe 108 -
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\2024-04-24_ee711be5ac7e4d382c21cb6cb3f9631b_chaos_destroyer_wannacry.exe"C:\Users\Admin\AppData\Local\Temp\2024-04-24_ee711be5ac7e4d382c21cb6cb3f9631b_chaos_destroyer_wannacry.exe"1⤵
- Checks computer location settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4780 -
C:\Users\Admin\AppData\Roaming\svchost.exe"C:\Users\Admin\AppData\Roaming\svchost.exe"2⤵
- Checks computer location settings
- Drops startup file
- Executes dropped EXE
- Drops desktop.ini file(s)
- Modifies registry class
- Suspicious behavior: AddClipboardFormatListener
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1216 -
C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" /C vssadmin delete shadows /all /quiet & wmic shadowcopy delete3⤵
- Suspicious use of WriteProcessMemory
PID:4732 -
C:\Windows\system32\vssadmin.exevssadmin delete shadows /all /quiet4⤵
- Interacts with shadow copies
PID:980
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C:\Windows\System32\Wbem\WMIC.exewmic shadowcopy delete4⤵
- Suspicious use of AdjustPrivilegeToken
PID:4928
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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:1920 -
C:\Windows\system32\bcdedit.exebcdedit /set {default} bootstatuspolicy ignoreallfailures4⤵
- Modifies boot configuration data using bcdedit
PID:2592
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C:\Windows\system32\bcdedit.exebcdedit /set {default} recoveryenabled no4⤵
- Modifies boot configuration data using bcdedit
PID:3216
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C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" /C wbadmin delete catalog -quiet3⤵
- Suspicious use of WriteProcessMemory
PID:2140 -
C:\Windows\system32\wbadmin.exewbadmin delete catalog -quiet4⤵
- Deletes backup catalog
PID:4956
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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:3844
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C:\Windows\system32\vssvc.exeC:\Windows\system32\vssvc.exe1⤵
- Suspicious use of AdjustPrivilegeToken
PID:4840
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C:\Windows\system32\wbengine.exe"C:\Windows\system32\wbengine.exe"1⤵
- Suspicious use of AdjustPrivilegeToken
PID:2768
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C:\Windows\System32\vdsldr.exeC:\Windows\System32\vdsldr.exe -Embedding1⤵PID:1712
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C:\Windows\System32\vds.exeC:\Windows\System32\vds.exe1⤵
- Checks SCSI registry key(s)
PID:3572
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
23KB
MD5ee711be5ac7e4d382c21cb6cb3f9631b
SHA1df2ad2e13d1160a900e730eeec7adc6503891088
SHA25696954af5f3a422d26951296adeb8d9a2cae1ada61f63ee1a2c884a4ef938cf87
SHA512bbd714ecbe31a75dd6d661cbcc7926e5cf2b7e0858f3931dc8ddd42d7254849e1b9a942f9ccc1140bd9f376a0149f4d79f1ef2e21b5aa45173c6f87e53fc12e2
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Filesize
1KB
MD5b1a5c367bb7f0c30db6a506a3e3a2db8
SHA154b0d78890b96de58b22b718e04acd416bfb2f6d
SHA25678e0b22120fa86f094a470a6b9f0ee786aa8dd3f683f172dc2a80a7194e41ba0
SHA512b910fc7b20cf9c3b85548b1e212c4c0053014d6f4524787488052ec28dbebdc857d94b2fe3ca38efbfeab1bca73a9e6a345fc3578224410c757293e44b4d96a7