Analysis
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max time kernel
94s -
max time network
150s -
platform
windows10-2004_x64 -
resource
win10v2004-20250129-en -
resource tags
arch:x64arch:x86image:win10v2004-20250129-enlocale:en-usos:windows10-2004-x64system -
submitted
30-01-2025 16:27
Behavioral task
behavioral1
Sample
2025-01-30_e268d6f87640a4031cde75775c37e289_chaos_destroyer_wannacry.exe
Resource
win7-20241010-en
Behavioral task
behavioral2
Sample
2025-01-30_e268d6f87640a4031cde75775c37e289_chaos_destroyer_wannacry.exe
Resource
win10v2004-20250129-en
General
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Target
2025-01-30_e268d6f87640a4031cde75775c37e289_chaos_destroyer_wannacry.exe
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Size
24KB
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MD5
e268d6f87640a4031cde75775c37e289
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SHA1
0045a30dc57eb37a5210cace55295fdebc057472
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SHA256
a5379455e745a667baa6b3f6e76dcd161b55d136cc5ccdc3a38f793bc2e51060
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SHA512
8cfbffe5346ebe05412125666c0ec582967af2c81269f1c659c9198c314198f581acc68c59f48c372c0781af64bbfd0859c274e923723ad77a27eb1fca4acf3c
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SSDEEP
384:s3Mg/bqo2vkhI6MxdDpzAD4+X0Z/BJxr91CWKvbnjeZ:Sqo28hwLpzu4+kRvxr9zKvbjeZ
Malware Config
Extracted
C:\Users\Admin\Documents\read_it.txt
chaos
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/5036-1-0x00000000007B0000-0x00000000007BC000-memory.dmp family_chaos behavioral2/files/0x000d000000023b35-6.dat family_chaos -
Chaos family
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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 3936 bcdedit.exe 2352 bcdedit.exe -
Renames multiple (220) files with added filename extension
This suggests ransomware activity of encrypting all the files on the system.
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pid Process 4552 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-1-5-21-70482961-775596374-3727440602-1000\Control Panel\International\Geo\Nation 2025-01-30_e268d6f87640a4031cde75775c37e289_chaos_destroyer_wannacry.exe Key value queried \REGISTRY\USER\S-1-5-21-70482961-775596374-3727440602-1000\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 744 svchost.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) 34 IoCs
description ioc Process File opened for modification C:\Users\Admin\Contacts\desktop.ini svchost.exe File opened for modification F:\$RECYCLE.BIN\S-1-5-21-70482961-775596374-3727440602-1000\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\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\Public\Music\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Documents\desktop.ini svchost.exe File opened for modification C:\Users\Public\Pictures\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\Pictures\Saved Pictures\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\Internet Explorer\Quick Launch\User Pinned\TaskBar\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\Pictures\Camera Roll\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 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\Links\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Downloads\desktop.ini svchost.exe File opened for modification C:\Users\Admin\OneDrive\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Saved Games\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Searches\desktop.ini svchost.exe File opened for modification C:\Users\Public\Desktop\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Desktop\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Music\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\AccountPictures\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\Pictures\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\Accessibility\desktop.ini svchost.exe File opened for modification C:\Users\Public\Documents\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Videos\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\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 Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\DISK&VEN_WDC&PROD_WDS100T2B0A\4&215468A5&0&000000 vds.exe Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\Disk&Ven_WDC&Prod_WDS100T2B0A\4&215468a5&0&000000\FriendlyName vds.exe -
Interacts with shadow copies 3 TTPs 1 IoCs
Shadow copies are often targeted by ransomware to inhibit system recovery.
pid Process 2288 vssadmin.exe -
Modifies registry class 1 IoCs
description ioc Process Key created \REGISTRY\USER\S-1-5-21-70482961-775596374-3727440602-1000_Classes\Local Settings svchost.exe -
Opens file in notepad (likely ransom note) 1 IoCs
pid Process 1404 NOTEPAD.EXE -
Suspicious behavior: AddClipboardFormatListener 1 IoCs
pid Process 744 svchost.exe -
Suspicious behavior: EnumeratesProcesses 47 IoCs
pid Process 5036 2025-01-30_e268d6f87640a4031cde75775c37e289_chaos_destroyer_wannacry.exe 5036 2025-01-30_e268d6f87640a4031cde75775c37e289_chaos_destroyer_wannacry.exe 5036 2025-01-30_e268d6f87640a4031cde75775c37e289_chaos_destroyer_wannacry.exe 5036 2025-01-30_e268d6f87640a4031cde75775c37e289_chaos_destroyer_wannacry.exe 5036 2025-01-30_e268d6f87640a4031cde75775c37e289_chaos_destroyer_wannacry.exe 5036 2025-01-30_e268d6f87640a4031cde75775c37e289_chaos_destroyer_wannacry.exe 5036 2025-01-30_e268d6f87640a4031cde75775c37e289_chaos_destroyer_wannacry.exe 5036 2025-01-30_e268d6f87640a4031cde75775c37e289_chaos_destroyer_wannacry.exe 5036 2025-01-30_e268d6f87640a4031cde75775c37e289_chaos_destroyer_wannacry.exe 5036 2025-01-30_e268d6f87640a4031cde75775c37e289_chaos_destroyer_wannacry.exe 5036 2025-01-30_e268d6f87640a4031cde75775c37e289_chaos_destroyer_wannacry.exe 5036 2025-01-30_e268d6f87640a4031cde75775c37e289_chaos_destroyer_wannacry.exe 5036 2025-01-30_e268d6f87640a4031cde75775c37e289_chaos_destroyer_wannacry.exe 5036 2025-01-30_e268d6f87640a4031cde75775c37e289_chaos_destroyer_wannacry.exe 5036 2025-01-30_e268d6f87640a4031cde75775c37e289_chaos_destroyer_wannacry.exe 5036 2025-01-30_e268d6f87640a4031cde75775c37e289_chaos_destroyer_wannacry.exe 5036 2025-01-30_e268d6f87640a4031cde75775c37e289_chaos_destroyer_wannacry.exe 5036 2025-01-30_e268d6f87640a4031cde75775c37e289_chaos_destroyer_wannacry.exe 5036 2025-01-30_e268d6f87640a4031cde75775c37e289_chaos_destroyer_wannacry.exe 5036 2025-01-30_e268d6f87640a4031cde75775c37e289_chaos_destroyer_wannacry.exe 5036 2025-01-30_e268d6f87640a4031cde75775c37e289_chaos_destroyer_wannacry.exe 5036 2025-01-30_e268d6f87640a4031cde75775c37e289_chaos_destroyer_wannacry.exe 5036 2025-01-30_e268d6f87640a4031cde75775c37e289_chaos_destroyer_wannacry.exe 744 svchost.exe 744 svchost.exe 744 svchost.exe 744 svchost.exe 744 svchost.exe 744 svchost.exe 744 svchost.exe 744 svchost.exe 744 svchost.exe 744 svchost.exe 744 svchost.exe 744 svchost.exe 744 svchost.exe 744 svchost.exe 744 svchost.exe 744 svchost.exe 744 svchost.exe 744 svchost.exe 744 svchost.exe 744 svchost.exe 744 svchost.exe 744 svchost.exe 744 svchost.exe 744 svchost.exe -
Suspicious use of AdjustPrivilegeToken 50 IoCs
description pid Process Token: SeDebugPrivilege 5036 2025-01-30_e268d6f87640a4031cde75775c37e289_chaos_destroyer_wannacry.exe Token: SeDebugPrivilege 744 svchost.exe Token: SeBackupPrivilege 3948 vssvc.exe Token: SeRestorePrivilege 3948 vssvc.exe Token: SeAuditPrivilege 3948 vssvc.exe Token: SeIncreaseQuotaPrivilege 4480 WMIC.exe Token: SeSecurityPrivilege 4480 WMIC.exe Token: SeTakeOwnershipPrivilege 4480 WMIC.exe Token: SeLoadDriverPrivilege 4480 WMIC.exe Token: SeSystemProfilePrivilege 4480 WMIC.exe Token: SeSystemtimePrivilege 4480 WMIC.exe Token: SeProfSingleProcessPrivilege 4480 WMIC.exe Token: SeIncBasePriorityPrivilege 4480 WMIC.exe Token: SeCreatePagefilePrivilege 4480 WMIC.exe Token: SeBackupPrivilege 4480 WMIC.exe Token: SeRestorePrivilege 4480 WMIC.exe Token: SeShutdownPrivilege 4480 WMIC.exe Token: SeDebugPrivilege 4480 WMIC.exe Token: SeSystemEnvironmentPrivilege 4480 WMIC.exe Token: SeRemoteShutdownPrivilege 4480 WMIC.exe Token: SeUndockPrivilege 4480 WMIC.exe Token: SeManageVolumePrivilege 4480 WMIC.exe Token: 33 4480 WMIC.exe Token: 34 4480 WMIC.exe Token: 35 4480 WMIC.exe Token: 36 4480 WMIC.exe Token: SeIncreaseQuotaPrivilege 4480 WMIC.exe Token: SeSecurityPrivilege 4480 WMIC.exe Token: SeTakeOwnershipPrivilege 4480 WMIC.exe Token: SeLoadDriverPrivilege 4480 WMIC.exe Token: SeSystemProfilePrivilege 4480 WMIC.exe Token: SeSystemtimePrivilege 4480 WMIC.exe Token: SeProfSingleProcessPrivilege 4480 WMIC.exe Token: SeIncBasePriorityPrivilege 4480 WMIC.exe Token: SeCreatePagefilePrivilege 4480 WMIC.exe Token: SeBackupPrivilege 4480 WMIC.exe Token: SeRestorePrivilege 4480 WMIC.exe Token: SeShutdownPrivilege 4480 WMIC.exe Token: SeDebugPrivilege 4480 WMIC.exe Token: SeSystemEnvironmentPrivilege 4480 WMIC.exe Token: SeRemoteShutdownPrivilege 4480 WMIC.exe Token: SeUndockPrivilege 4480 WMIC.exe Token: SeManageVolumePrivilege 4480 WMIC.exe Token: 33 4480 WMIC.exe Token: 34 4480 WMIC.exe Token: 35 4480 WMIC.exe Token: 36 4480 WMIC.exe Token: SeBackupPrivilege 3756 wbengine.exe Token: SeRestorePrivilege 3756 wbengine.exe Token: SeSecurityPrivilege 3756 wbengine.exe -
Suspicious use of WriteProcessMemory 20 IoCs
description pid Process procid_target PID 5036 wrote to memory of 744 5036 2025-01-30_e268d6f87640a4031cde75775c37e289_chaos_destroyer_wannacry.exe 86 PID 5036 wrote to memory of 744 5036 2025-01-30_e268d6f87640a4031cde75775c37e289_chaos_destroyer_wannacry.exe 86 PID 744 wrote to memory of 1288 744 svchost.exe 88 PID 744 wrote to memory of 1288 744 svchost.exe 88 PID 1288 wrote to memory of 2288 1288 cmd.exe 90 PID 1288 wrote to memory of 2288 1288 cmd.exe 90 PID 1288 wrote to memory of 4480 1288 cmd.exe 93 PID 1288 wrote to memory of 4480 1288 cmd.exe 93 PID 744 wrote to memory of 2900 744 svchost.exe 95 PID 744 wrote to memory of 2900 744 svchost.exe 95 PID 2900 wrote to memory of 3936 2900 cmd.exe 97 PID 2900 wrote to memory of 3936 2900 cmd.exe 97 PID 2900 wrote to memory of 2352 2900 cmd.exe 98 PID 2900 wrote to memory of 2352 2900 cmd.exe 98 PID 744 wrote to memory of 1392 744 svchost.exe 99 PID 744 wrote to memory of 1392 744 svchost.exe 99 PID 1392 wrote to memory of 4552 1392 cmd.exe 101 PID 1392 wrote to memory of 4552 1392 cmd.exe 101 PID 744 wrote to memory of 1404 744 svchost.exe 105 PID 744 wrote to memory of 1404 744 svchost.exe 105 -
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\2025-01-30_e268d6f87640a4031cde75775c37e289_chaos_destroyer_wannacry.exe"C:\Users\Admin\AppData\Local\Temp\2025-01-30_e268d6f87640a4031cde75775c37e289_chaos_destroyer_wannacry.exe"1⤵
- Checks computer location settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:5036 -
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:744 -
C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" /C vssadmin delete shadows /all /quiet & wmic shadowcopy delete3⤵
- Suspicious use of WriteProcessMemory
PID:1288 -
C:\Windows\system32\vssadmin.exevssadmin delete shadows /all /quiet4⤵
- Interacts with shadow copies
PID:2288
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C:\Windows\System32\Wbem\WMIC.exewmic shadowcopy delete4⤵
- Suspicious use of AdjustPrivilegeToken
PID:4480
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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:2900 -
C:\Windows\system32\bcdedit.exebcdedit /set {default} bootstatuspolicy ignoreallfailures4⤵
- Modifies boot configuration data using bcdedit
PID:3936
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C:\Windows\system32\bcdedit.exebcdedit /set {default} recoveryenabled no4⤵
- Modifies boot configuration data using bcdedit
PID:2352
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C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" /C wbadmin delete catalog -quiet3⤵
- Suspicious use of WriteProcessMemory
PID:1392 -
C:\Windows\system32\wbadmin.exewbadmin delete catalog -quiet4⤵
- Deletes backup catalog
PID:4552
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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:1404
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C:\Windows\system32\vssvc.exeC:\Windows\system32\vssvc.exe1⤵
- Suspicious use of AdjustPrivilegeToken
PID:3948
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C:\Windows\system32\wbengine.exe"C:\Windows\system32\wbengine.exe"1⤵
- Suspicious use of AdjustPrivilegeToken
PID:3756
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C:\Windows\System32\vdsldr.exeC:\Windows\System32\vdsldr.exe -Embedding1⤵PID:1988
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C:\Windows\System32\vds.exeC:\Windows\System32\vds.exe1⤵
- Checks SCSI registry key(s)
PID:5032
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
24KB
MD5e268d6f87640a4031cde75775c37e289
SHA10045a30dc57eb37a5210cace55295fdebc057472
SHA256a5379455e745a667baa6b3f6e76dcd161b55d136cc5ccdc3a38f793bc2e51060
SHA5128cfbffe5346ebe05412125666c0ec582967af2c81269f1c659c9198c314198f581acc68c59f48c372c0781af64bbfd0859c274e923723ad77a27eb1fca4acf3c
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Filesize
1KB
MD5c06fc790feb3e340e96cf976343babd3
SHA17bc072599d6bb1b16b3d37fee85b45f35221226a
SHA25649808ee2bfdb940fd396309f64d6b717fdaaf87bd3cc14c6a0a38c3b3008ac22
SHA512a3df59409c15163b6b5561997f4d67fab0957f0d6d033017ab0297ff7ed4028aa3837aa04af6275779dd4e32497bc5b3bb94d747a9c367e93ffad9cad1c79c8d