Analysis
-
max time kernel
142s -
max time network
152s -
platform
windows10-2004_x64 -
resource
win10v2004-20240226-en -
resource tags
arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system -
submitted
28-04-2024 16:24
Behavioral task
behavioral1
Sample
2024-04-28_0d74b1b35a300a46c077a159c9bb1f54_chaos_destroyer_wannacry.exe
Resource
win7-20231129-en
Behavioral task
behavioral2
Sample
2024-04-28_0d74b1b35a300a46c077a159c9bb1f54_chaos_destroyer_wannacry.exe
Resource
win10v2004-20240226-en
General
-
Target
2024-04-28_0d74b1b35a300a46c077a159c9bb1f54_chaos_destroyer_wannacry.exe
-
Size
28KB
-
MD5
0d74b1b35a300a46c077a159c9bb1f54
-
SHA1
cf866b0dd5eed866cee681a61dcad1d2a2b868e9
-
SHA256
ae0f395572e1922d28a526075665b5be9cf619044348fe9058569f9dd94f52c9
-
SHA512
dd0487163c66c7f8ddc7d36191abed25e1f4163852c72cecd506dafc16f7ccd4947f79f4dff006773cc11076b46d22cdb1de776f8b637ad60918135b2ef0a8cd
-
SSDEEP
768:dn3kIompLNMfKXROor9inlucg+wiNzGp5ek:t3kI/OIEor9inVg+Zk
Malware Config
Extracted
C:\Users\Admin\Desktop\important.txt
3Gq3M3xz5dstUaCn7iLLxLRTBMs3BLKwPn
https://www.coinmama.com
https://www.bitpanda.com
Signatures
-
Chaos
Ransomware family first seen in June 2021.
-
Chaos Ransomware 2 IoCs
resource yara_rule behavioral2/memory/2468-0-0x0000000000230000-0x000000000023E000-memory.dmp family_chaos behavioral2/files/0x0007000000023279-6.dat family_chaos -
Deletes shadow copies 2 TTPs
Ransomware often targets backup files to inhibit system recovery.
-
Detects command variations typically used by ransomware 2 IoCs
resource yara_rule behavioral2/memory/2468-0-0x0000000000230000-0x000000000023E000-memory.dmp INDICATOR_SUSPICIOUS_GENRansomware behavioral2/files/0x0007000000023279-6.dat INDICATOR_SUSPICIOUS_GENRansomware -
Modifies boot configuration data using bcdedit 1 TTPs 2 IoCs
pid Process 2244 bcdedit.exe 4440 bcdedit.exe -
pid Process 4196 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-1-5-21-3808065738-1666277613-1125846146-1000\Control Panel\International\Geo\Nation 2024-04-28_0d74b1b35a300a46c077a159c9bb1f54_chaos_destroyer_wannacry.exe Key value queried \REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\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\important.txt svchost.exe -
Executes dropped EXE 1 IoCs
pid Process 1712 svchost.exe -
Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
-
Drops desktop.ini file(s) 34 IoCs
description ioc Process 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\AppData\Roaming\Microsoft\Windows\AccountPictures\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\Start Menu\Programs\Accessibility\desktop.ini svchost.exe File opened for modification C:\Users\Public\Pictures\desktop.ini svchost.exe File opened for modification C:\Users\Public\Desktop\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\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\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\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\Admin\Searches\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\Pictures\Saved Pictures\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\Accessories\desktop.ini svchost.exe File opened for modification C:\Users\Public\Documents\desktop.ini svchost.exe File opened for modification F:\$RECYCLE.BIN\S-1-5-21-3808065738-1666277613-1125846146-1000\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Links\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\SendTo\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\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\Admin\Desktop\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 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 -
Sets desktop wallpaper using registry 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\Control Panel\Desktop\Wallpaper = "C:\\Users\\Admin\\AppData\\Local\\Temp\\xoq5fc8kk.jpg" svchost.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
-
Checks SCSI registry key(s) 3 TTPs 4 IoCs
SCSI information is often read in order to detect sandboxing environments.
description ioc Process Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\CdRom&Ven_DADY&Prod_DADY_DVD-ROM\4&215468a5&0&010000\FriendlyName vds.exe 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_DADY&PROD_DADY_DVD-ROM\4&215468A5&0&010000 vds.exe -
Interacts with shadow copies 2 TTPs 1 IoCs
Shadow copies are often targeted by ransomware to inhibit system recovery.
pid Process 368 vssadmin.exe -
Modifies registry class 1 IoCs
description ioc Process Key created \REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000_Classes\Local Settings svchost.exe -
Opens file in notepad (likely ransom note) 1 IoCs
pid Process 4424 NOTEPAD.EXE -
Suspicious behavior: AddClipboardFormatListener 1 IoCs
pid Process 1712 svchost.exe -
Suspicious behavior: EnumeratesProcesses 50 IoCs
pid Process 2468 2024-04-28_0d74b1b35a300a46c077a159c9bb1f54_chaos_destroyer_wannacry.exe 2468 2024-04-28_0d74b1b35a300a46c077a159c9bb1f54_chaos_destroyer_wannacry.exe 2468 2024-04-28_0d74b1b35a300a46c077a159c9bb1f54_chaos_destroyer_wannacry.exe 2468 2024-04-28_0d74b1b35a300a46c077a159c9bb1f54_chaos_destroyer_wannacry.exe 2468 2024-04-28_0d74b1b35a300a46c077a159c9bb1f54_chaos_destroyer_wannacry.exe 2468 2024-04-28_0d74b1b35a300a46c077a159c9bb1f54_chaos_destroyer_wannacry.exe 2468 2024-04-28_0d74b1b35a300a46c077a159c9bb1f54_chaos_destroyer_wannacry.exe 2468 2024-04-28_0d74b1b35a300a46c077a159c9bb1f54_chaos_destroyer_wannacry.exe 2468 2024-04-28_0d74b1b35a300a46c077a159c9bb1f54_chaos_destroyer_wannacry.exe 2468 2024-04-28_0d74b1b35a300a46c077a159c9bb1f54_chaos_destroyer_wannacry.exe 2468 2024-04-28_0d74b1b35a300a46c077a159c9bb1f54_chaos_destroyer_wannacry.exe 2468 2024-04-28_0d74b1b35a300a46c077a159c9bb1f54_chaos_destroyer_wannacry.exe 2468 2024-04-28_0d74b1b35a300a46c077a159c9bb1f54_chaos_destroyer_wannacry.exe 2468 2024-04-28_0d74b1b35a300a46c077a159c9bb1f54_chaos_destroyer_wannacry.exe 2468 2024-04-28_0d74b1b35a300a46c077a159c9bb1f54_chaos_destroyer_wannacry.exe 2468 2024-04-28_0d74b1b35a300a46c077a159c9bb1f54_chaos_destroyer_wannacry.exe 2468 2024-04-28_0d74b1b35a300a46c077a159c9bb1f54_chaos_destroyer_wannacry.exe 2468 2024-04-28_0d74b1b35a300a46c077a159c9bb1f54_chaos_destroyer_wannacry.exe 2468 2024-04-28_0d74b1b35a300a46c077a159c9bb1f54_chaos_destroyer_wannacry.exe 2468 2024-04-28_0d74b1b35a300a46c077a159c9bb1f54_chaos_destroyer_wannacry.exe 2468 2024-04-28_0d74b1b35a300a46c077a159c9bb1f54_chaos_destroyer_wannacry.exe 2468 2024-04-28_0d74b1b35a300a46c077a159c9bb1f54_chaos_destroyer_wannacry.exe 2468 2024-04-28_0d74b1b35a300a46c077a159c9bb1f54_chaos_destroyer_wannacry.exe 1712 svchost.exe 1712 svchost.exe 1712 svchost.exe 1712 svchost.exe 1712 svchost.exe 1712 svchost.exe 1712 svchost.exe 1712 svchost.exe 1712 svchost.exe 1712 svchost.exe 1712 svchost.exe 1712 svchost.exe 1712 svchost.exe 1712 svchost.exe 1712 svchost.exe 1712 svchost.exe 1712 svchost.exe 1712 svchost.exe 1712 svchost.exe 1712 svchost.exe 1712 svchost.exe 1712 svchost.exe 1712 svchost.exe 1712 svchost.exe 1712 svchost.exe 1712 svchost.exe 1712 svchost.exe -
Suspicious use of AdjustPrivilegeToken 50 IoCs
description pid Process Token: SeDebugPrivilege 2468 2024-04-28_0d74b1b35a300a46c077a159c9bb1f54_chaos_destroyer_wannacry.exe Token: SeDebugPrivilege 1712 svchost.exe Token: SeBackupPrivilege 4352 vssvc.exe Token: SeRestorePrivilege 4352 vssvc.exe Token: SeAuditPrivilege 4352 vssvc.exe Token: SeIncreaseQuotaPrivilege 2604 WMIC.exe Token: SeSecurityPrivilege 2604 WMIC.exe Token: SeTakeOwnershipPrivilege 2604 WMIC.exe Token: SeLoadDriverPrivilege 2604 WMIC.exe Token: SeSystemProfilePrivilege 2604 WMIC.exe Token: SeSystemtimePrivilege 2604 WMIC.exe Token: SeProfSingleProcessPrivilege 2604 WMIC.exe Token: SeIncBasePriorityPrivilege 2604 WMIC.exe Token: SeCreatePagefilePrivilege 2604 WMIC.exe Token: SeBackupPrivilege 2604 WMIC.exe Token: SeRestorePrivilege 2604 WMIC.exe Token: SeShutdownPrivilege 2604 WMIC.exe Token: SeDebugPrivilege 2604 WMIC.exe Token: SeSystemEnvironmentPrivilege 2604 WMIC.exe Token: SeRemoteShutdownPrivilege 2604 WMIC.exe Token: SeUndockPrivilege 2604 WMIC.exe Token: SeManageVolumePrivilege 2604 WMIC.exe Token: 33 2604 WMIC.exe Token: 34 2604 WMIC.exe Token: 35 2604 WMIC.exe Token: 36 2604 WMIC.exe Token: SeIncreaseQuotaPrivilege 2604 WMIC.exe Token: SeSecurityPrivilege 2604 WMIC.exe Token: SeTakeOwnershipPrivilege 2604 WMIC.exe Token: SeLoadDriverPrivilege 2604 WMIC.exe Token: SeSystemProfilePrivilege 2604 WMIC.exe Token: SeSystemtimePrivilege 2604 WMIC.exe Token: SeProfSingleProcessPrivilege 2604 WMIC.exe Token: SeIncBasePriorityPrivilege 2604 WMIC.exe Token: SeCreatePagefilePrivilege 2604 WMIC.exe Token: SeBackupPrivilege 2604 WMIC.exe Token: SeRestorePrivilege 2604 WMIC.exe Token: SeShutdownPrivilege 2604 WMIC.exe Token: SeDebugPrivilege 2604 WMIC.exe Token: SeSystemEnvironmentPrivilege 2604 WMIC.exe Token: SeRemoteShutdownPrivilege 2604 WMIC.exe Token: SeUndockPrivilege 2604 WMIC.exe Token: SeManageVolumePrivilege 2604 WMIC.exe Token: 33 2604 WMIC.exe Token: 34 2604 WMIC.exe Token: 35 2604 WMIC.exe Token: 36 2604 WMIC.exe Token: SeBackupPrivilege 4324 wbengine.exe Token: SeRestorePrivilege 4324 wbengine.exe Token: SeSecurityPrivilege 4324 wbengine.exe -
Suspicious use of WriteProcessMemory 20 IoCs
description pid Process procid_target PID 2468 wrote to memory of 1712 2468 2024-04-28_0d74b1b35a300a46c077a159c9bb1f54_chaos_destroyer_wannacry.exe 98 PID 2468 wrote to memory of 1712 2468 2024-04-28_0d74b1b35a300a46c077a159c9bb1f54_chaos_destroyer_wannacry.exe 98 PID 1712 wrote to memory of 3388 1712 svchost.exe 99 PID 1712 wrote to memory of 3388 1712 svchost.exe 99 PID 3388 wrote to memory of 368 3388 cmd.exe 101 PID 3388 wrote to memory of 368 3388 cmd.exe 101 PID 3388 wrote to memory of 2604 3388 cmd.exe 104 PID 3388 wrote to memory of 2604 3388 cmd.exe 104 PID 1712 wrote to memory of 2152 1712 svchost.exe 105 PID 1712 wrote to memory of 2152 1712 svchost.exe 105 PID 2152 wrote to memory of 2244 2152 cmd.exe 108 PID 2152 wrote to memory of 2244 2152 cmd.exe 108 PID 2152 wrote to memory of 4440 2152 cmd.exe 109 PID 2152 wrote to memory of 4440 2152 cmd.exe 109 PID 1712 wrote to memory of 1972 1712 svchost.exe 110 PID 1712 wrote to memory of 1972 1712 svchost.exe 110 PID 1972 wrote to memory of 4196 1972 cmd.exe 112 PID 1972 wrote to memory of 4196 1972 cmd.exe 112 PID 1712 wrote to memory of 4424 1712 svchost.exe 117 PID 1712 wrote to memory of 4424 1712 svchost.exe 117 -
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.
-
Uses Volume Shadow Copy service COM API
The Volume Shadow Copy service is used to manage backups/snapshots.
Processes
-
C:\Users\Admin\AppData\Local\Temp\2024-04-28_0d74b1b35a300a46c077a159c9bb1f54_chaos_destroyer_wannacry.exe"C:\Users\Admin\AppData\Local\Temp\2024-04-28_0d74b1b35a300a46c077a159c9bb1f54_chaos_destroyer_wannacry.exe"1⤵
- Checks computer location settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2468 -
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)
- Sets desktop wallpaper using registry
- Modifies registry class
- Suspicious behavior: AddClipboardFormatListener
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1712 -
C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" /C vssadmin delete shadows /all /quiet & wmic shadowcopy delete3⤵
- Suspicious use of WriteProcessMemory
PID:3388 -
C:\Windows\system32\vssadmin.exevssadmin delete shadows /all /quiet4⤵
- Interacts with shadow copies
PID:368
-
-
C:\Windows\System32\Wbem\WMIC.exewmic shadowcopy delete4⤵
- Suspicious use of AdjustPrivilegeToken
PID:2604
-
-
-
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:2152 -
C:\Windows\system32\bcdedit.exebcdedit /set {default} bootstatuspolicy ignoreallfailures4⤵
- Modifies boot configuration data using bcdedit
PID:2244
-
-
C:\Windows\system32\bcdedit.exebcdedit /set {default} recoveryenabled no4⤵
- Modifies boot configuration data using bcdedit
PID:4440
-
-
-
C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" /C wbadmin delete catalog -quiet3⤵
- Suspicious use of WriteProcessMemory
PID:1972 -
C:\Windows\system32\wbadmin.exewbadmin delete catalog -quiet4⤵
- Deletes backup catalog
PID:4196
-
-
-
C:\Windows\system32\NOTEPAD.EXE"C:\Windows\system32\NOTEPAD.EXE" C:\Users\Admin\AppData\Roaming\important.txt3⤵
- Opens file in notepad (likely ransom note)
PID:4424
-
-
-
C:\Windows\system32\vssvc.exeC:\Windows\system32\vssvc.exe1⤵
- Suspicious use of AdjustPrivilegeToken
PID:4352
-
C:\Windows\system32\wbengine.exe"C:\Windows\system32\wbengine.exe"1⤵
- Suspicious use of AdjustPrivilegeToken
PID:4324
-
C:\Windows\System32\vdsldr.exeC:\Windows\System32\vdsldr.exe -Embedding1⤵PID:4476
-
C:\Windows\System32\vds.exeC:\Windows\System32\vds.exe1⤵
- Checks SCSI registry key(s)
PID:876
-
C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=3872 --field-trial-handle=2656,i,16940681401824032220,151921362336696246,262144 --variations-seed-version /prefetch:81⤵PID:2604
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
-
Filesize
28KB
MD50d74b1b35a300a46c077a159c9bb1f54
SHA1cf866b0dd5eed866cee681a61dcad1d2a2b868e9
SHA256ae0f395572e1922d28a526075665b5be9cf619044348fe9058569f9dd94f52c9
SHA512dd0487163c66c7f8ddc7d36191abed25e1f4163852c72cecd506dafc16f7ccd4947f79f4dff006773cc11076b46d22cdb1de776f8b637ad60918135b2ef0a8cd
-
Filesize
941B
MD55fdc7e501de0d03fbda6f3dd7acb920a
SHA1dc8d97ded3e372e28b239f113fc302cdb735bb94
SHA256d0ef7c6d59cb28093c7418c9b32296669aa32a26721733c9fa08db4d55e07e88
SHA512ea43036af4008ad5c8c1bebc017e5967ab7bc218f929b1efc6498aca2ddf40d2755205fd696c034b013abce2e2039e5320aed3f44c708a8faf161d1289a5524b