Analysis
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max time kernel
147s -
max time network
153s -
platform
windows10-2004_x64 -
resource
win10v2004-20240802-en -
resource tags
arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system -
submitted
22-08-2024 18:26
Behavioral task
behavioral1
Sample
2024-08-22_f0ffaa2a2b86db3f9e4141d61da80604_wannacry.exe
Resource
win7-20240704-en
Behavioral task
behavioral2
Sample
2024-08-22_f0ffaa2a2b86db3f9e4141d61da80604_wannacry.exe
Resource
win10v2004-20240802-en
General
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Target
2024-08-22_f0ffaa2a2b86db3f9e4141d61da80604_wannacry.exe
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Size
168KB
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MD5
f0ffaa2a2b86db3f9e4141d61da80604
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SHA1
e9ce0c50a6b7f15b440fb5b45aa3d9e8e23cfb8f
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SHA256
6c49fdaea11c987e62bfe88d3f4b7e88652662a253a4df4321d319f559a1562b
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SHA512
f0d9876ce1b5a174ec0db4148fca9909a2fc912d9db1551e302957fc6f2ccb1a3cfbcd5358a20f635088f5742a681edf2d002f07db2ea36d690f0f443900ed0f
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SSDEEP
1536:leKebU6b0RgzZ8+1oqDAYkjeNY+RchBuwl/lrY0/x4GWB+Zi++VIMDFr9LAID8A:leKePQRgZFbJchBuihsZVRDFr9kID8A
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/4380-1-0x0000000000240000-0x0000000000270000-memory.dmp family_chaos behavioral2/files/0x000600000001da42-11.dat 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 4816 bcdedit.exe 4284 bcdedit.exe -
pid Process 2324 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-1-5-21-945322488-2060912225-3527527000-1000\Control Panel\International\Geo\Nation 2024-08-22_f0ffaa2a2b86db3f9e4141d61da80604_wannacry.exe Key value queried \REGISTRY\USER\S-1-5-21-945322488-2060912225-3527527000-1000\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 3876 svchost.exe -
Loads dropped DLL 2 IoCs
pid Process 4380 2024-08-22_f0ffaa2a2b86db3f9e4141d61da80604_wannacry.exe 3876 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\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\Recent\desktop.ini svchost.exe File opened for modification C:\Users\Public\Pictures\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\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\Videos\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Links\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\Pictures\Camera Roll\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Downloads\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Pictures\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Desktop\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\Documents\desktop.ini svchost.exe File opened for modification C:\Users\Public\Music\desktop.ini svchost.exe File opened for modification C:\Users\Public\Desktop\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\Contacts\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Documents\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Music\desktop.ini svchost.exe File opened for modification C:\Users\Admin\OneDrive\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\System Tools\Desktop.ini svchost.exe File opened for modification F:\$RECYCLE.BIN\S-1-5-21-945322488-2060912225-3527527000-1000\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\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\Admin\Searches\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\Windows\SendTo\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Saved Games\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 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 Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\CDROM&VEN_QEMU&PROD_QEMU_DVD-ROM\4&215468A5&0&010000 vds.exe -
Interacts with shadow copies 3 TTPs 1 IoCs
Shadow copies are often targeted by ransomware to inhibit system recovery.
pid Process 5096 vssadmin.exe -
Modifies registry class 1 IoCs
description ioc Process Key created \REGISTRY\USER\S-1-5-21-945322488-2060912225-3527527000-1000_Classes\Local Settings svchost.exe -
Opens file in notepad (likely ransom note) 1 IoCs
pid Process 3468 NOTEPAD.EXE -
Suspicious behavior: AddClipboardFormatListener 1 IoCs
pid Process 3876 svchost.exe -
Suspicious behavior: EnumeratesProcesses 53 IoCs
pid Process 4380 2024-08-22_f0ffaa2a2b86db3f9e4141d61da80604_wannacry.exe 4380 2024-08-22_f0ffaa2a2b86db3f9e4141d61da80604_wannacry.exe 4380 2024-08-22_f0ffaa2a2b86db3f9e4141d61da80604_wannacry.exe 4380 2024-08-22_f0ffaa2a2b86db3f9e4141d61da80604_wannacry.exe 4380 2024-08-22_f0ffaa2a2b86db3f9e4141d61da80604_wannacry.exe 4380 2024-08-22_f0ffaa2a2b86db3f9e4141d61da80604_wannacry.exe 4380 2024-08-22_f0ffaa2a2b86db3f9e4141d61da80604_wannacry.exe 4380 2024-08-22_f0ffaa2a2b86db3f9e4141d61da80604_wannacry.exe 4380 2024-08-22_f0ffaa2a2b86db3f9e4141d61da80604_wannacry.exe 4380 2024-08-22_f0ffaa2a2b86db3f9e4141d61da80604_wannacry.exe 4380 2024-08-22_f0ffaa2a2b86db3f9e4141d61da80604_wannacry.exe 4380 2024-08-22_f0ffaa2a2b86db3f9e4141d61da80604_wannacry.exe 4380 2024-08-22_f0ffaa2a2b86db3f9e4141d61da80604_wannacry.exe 4380 2024-08-22_f0ffaa2a2b86db3f9e4141d61da80604_wannacry.exe 4380 2024-08-22_f0ffaa2a2b86db3f9e4141d61da80604_wannacry.exe 4380 2024-08-22_f0ffaa2a2b86db3f9e4141d61da80604_wannacry.exe 4380 2024-08-22_f0ffaa2a2b86db3f9e4141d61da80604_wannacry.exe 4380 2024-08-22_f0ffaa2a2b86db3f9e4141d61da80604_wannacry.exe 4380 2024-08-22_f0ffaa2a2b86db3f9e4141d61da80604_wannacry.exe 4380 2024-08-22_f0ffaa2a2b86db3f9e4141d61da80604_wannacry.exe 4380 2024-08-22_f0ffaa2a2b86db3f9e4141d61da80604_wannacry.exe 4380 2024-08-22_f0ffaa2a2b86db3f9e4141d61da80604_wannacry.exe 4380 2024-08-22_f0ffaa2a2b86db3f9e4141d61da80604_wannacry.exe 4380 2024-08-22_f0ffaa2a2b86db3f9e4141d61da80604_wannacry.exe 4380 2024-08-22_f0ffaa2a2b86db3f9e4141d61da80604_wannacry.exe 3876 svchost.exe 3876 svchost.exe 3876 svchost.exe 3876 svchost.exe 3876 svchost.exe 3876 svchost.exe 3876 svchost.exe 3876 svchost.exe 3876 svchost.exe 3876 svchost.exe 3876 svchost.exe 3876 svchost.exe 3876 svchost.exe 3876 svchost.exe 3876 svchost.exe 3876 svchost.exe 3876 svchost.exe 3876 svchost.exe 3876 svchost.exe 3876 svchost.exe 3876 svchost.exe 3876 svchost.exe 3876 svchost.exe 3876 svchost.exe 3876 svchost.exe 3876 svchost.exe 3876 svchost.exe 3876 svchost.exe -
Suspicious use of AdjustPrivilegeToken 50 IoCs
description pid Process Token: SeDebugPrivilege 4380 2024-08-22_f0ffaa2a2b86db3f9e4141d61da80604_wannacry.exe Token: SeDebugPrivilege 3876 svchost.exe Token: SeBackupPrivilege 4352 vssvc.exe Token: SeRestorePrivilege 4352 vssvc.exe Token: SeAuditPrivilege 4352 vssvc.exe Token: SeIncreaseQuotaPrivilege 4544 WMIC.exe Token: SeSecurityPrivilege 4544 WMIC.exe Token: SeTakeOwnershipPrivilege 4544 WMIC.exe Token: SeLoadDriverPrivilege 4544 WMIC.exe Token: SeSystemProfilePrivilege 4544 WMIC.exe Token: SeSystemtimePrivilege 4544 WMIC.exe Token: SeProfSingleProcessPrivilege 4544 WMIC.exe Token: SeIncBasePriorityPrivilege 4544 WMIC.exe Token: SeCreatePagefilePrivilege 4544 WMIC.exe Token: SeBackupPrivilege 4544 WMIC.exe Token: SeRestorePrivilege 4544 WMIC.exe Token: SeShutdownPrivilege 4544 WMIC.exe Token: SeDebugPrivilege 4544 WMIC.exe Token: SeSystemEnvironmentPrivilege 4544 WMIC.exe Token: SeRemoteShutdownPrivilege 4544 WMIC.exe Token: SeUndockPrivilege 4544 WMIC.exe Token: SeManageVolumePrivilege 4544 WMIC.exe Token: 33 4544 WMIC.exe Token: 34 4544 WMIC.exe Token: 35 4544 WMIC.exe Token: 36 4544 WMIC.exe Token: SeIncreaseQuotaPrivilege 4544 WMIC.exe Token: SeSecurityPrivilege 4544 WMIC.exe Token: SeTakeOwnershipPrivilege 4544 WMIC.exe Token: SeLoadDriverPrivilege 4544 WMIC.exe Token: SeSystemProfilePrivilege 4544 WMIC.exe Token: SeSystemtimePrivilege 4544 WMIC.exe Token: SeProfSingleProcessPrivilege 4544 WMIC.exe Token: SeIncBasePriorityPrivilege 4544 WMIC.exe Token: SeCreatePagefilePrivilege 4544 WMIC.exe Token: SeBackupPrivilege 4544 WMIC.exe Token: SeRestorePrivilege 4544 WMIC.exe Token: SeShutdownPrivilege 4544 WMIC.exe Token: SeDebugPrivilege 4544 WMIC.exe Token: SeSystemEnvironmentPrivilege 4544 WMIC.exe Token: SeRemoteShutdownPrivilege 4544 WMIC.exe Token: SeUndockPrivilege 4544 WMIC.exe Token: SeManageVolumePrivilege 4544 WMIC.exe Token: 33 4544 WMIC.exe Token: 34 4544 WMIC.exe Token: 35 4544 WMIC.exe Token: 36 4544 WMIC.exe Token: SeBackupPrivilege 3408 wbengine.exe Token: SeRestorePrivilege 3408 wbengine.exe Token: SeSecurityPrivilege 3408 wbengine.exe -
Suspicious use of WriteProcessMemory 20 IoCs
description pid Process procid_target PID 4380 wrote to memory of 3876 4380 2024-08-22_f0ffaa2a2b86db3f9e4141d61da80604_wannacry.exe 89 PID 4380 wrote to memory of 3876 4380 2024-08-22_f0ffaa2a2b86db3f9e4141d61da80604_wannacry.exe 89 PID 3876 wrote to memory of 1700 3876 svchost.exe 94 PID 3876 wrote to memory of 1700 3876 svchost.exe 94 PID 1700 wrote to memory of 5096 1700 cmd.exe 96 PID 1700 wrote to memory of 5096 1700 cmd.exe 96 PID 1700 wrote to memory of 4544 1700 cmd.exe 99 PID 1700 wrote to memory of 4544 1700 cmd.exe 99 PID 3876 wrote to memory of 220 3876 svchost.exe 102 PID 3876 wrote to memory of 220 3876 svchost.exe 102 PID 220 wrote to memory of 4816 220 cmd.exe 104 PID 220 wrote to memory of 4816 220 cmd.exe 104 PID 220 wrote to memory of 4284 220 cmd.exe 105 PID 220 wrote to memory of 4284 220 cmd.exe 105 PID 3876 wrote to memory of 4972 3876 svchost.exe 106 PID 3876 wrote to memory of 4972 3876 svchost.exe 106 PID 4972 wrote to memory of 2324 4972 cmd.exe 108 PID 4972 wrote to memory of 2324 4972 cmd.exe 108 PID 3876 wrote to memory of 3468 3876 svchost.exe 112 PID 3876 wrote to memory of 3468 3876 svchost.exe 112 -
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\2024-08-22_f0ffaa2a2b86db3f9e4141d61da80604_wannacry.exe"C:\Users\Admin\AppData\Local\Temp\2024-08-22_f0ffaa2a2b86db3f9e4141d61da80604_wannacry.exe"1⤵
- Checks computer location settings
- Loads dropped DLL
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4380 -
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
- Loads dropped DLL
- Drops desktop.ini file(s)
- Modifies registry class
- Suspicious behavior: AddClipboardFormatListener
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3876 -
C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" /C vssadmin delete shadows /all /quiet & wmic shadowcopy delete3⤵
- Suspicious use of WriteProcessMemory
PID:1700 -
C:\Windows\system32\vssadmin.exevssadmin delete shadows /all /quiet4⤵
- Interacts with shadow copies
PID:5096
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C:\Windows\System32\Wbem\WMIC.exewmic shadowcopy delete4⤵
- Suspicious use of AdjustPrivilegeToken
PID:4544
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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:220 -
C:\Windows\system32\bcdedit.exebcdedit /set {default} bootstatuspolicy ignoreallfailures4⤵
- Modifies boot configuration data using bcdedit
PID:4816
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C:\Windows\system32\bcdedit.exebcdedit /set {default} recoveryenabled no4⤵
- Modifies boot configuration data using bcdedit
PID:4284
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C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" /C wbadmin delete catalog -quiet3⤵
- Suspicious use of WriteProcessMemory
PID:4972 -
C:\Windows\system32\wbadmin.exewbadmin delete catalog -quiet4⤵
- Deletes backup catalog
PID:2324
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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:3468
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C:\Windows\system32\vssvc.exeC:\Windows\system32\vssvc.exe1⤵
- Suspicious use of AdjustPrivilegeToken
PID:4352
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C:\Windows\system32\wbengine.exe"C:\Windows\system32\wbengine.exe"1⤵
- Suspicious use of AdjustPrivilegeToken
PID:3408
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C:\Windows\System32\vdsldr.exeC:\Windows\System32\vdsldr.exe -Embedding1⤵PID:4732
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C:\Windows\System32\vds.exeC:\Windows\System32\vds.exe1⤵
- Checks SCSI registry key(s)
PID:3568
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
39KB
MD5d80d1b6d9a6d5986fa47f6f8487030e1
SHA18f5773bf9eca43b079c1766b2e9f44cc90bd9215
SHA256446128f1712da8064d0197376184315cb529ed26ed9122f7b171bb208e22c0c3
SHA5129fcf0105c2c9ee81c526d41633d93579bb8e2837989d77fb4a6523440415ec2d7fa46ac9ae4e55ecebd99126837817ac308cc079475de02667b21727a43d74cc
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Filesize
168KB
MD5f0ffaa2a2b86db3f9e4141d61da80604
SHA1e9ce0c50a6b7f15b440fb5b45aa3d9e8e23cfb8f
SHA2566c49fdaea11c987e62bfe88d3f4b7e88652662a253a4df4321d319f559a1562b
SHA512f0d9876ce1b5a174ec0db4148fca9909a2fc912d9db1551e302957fc6f2ccb1a3cfbcd5358a20f635088f5742a681edf2d002f07db2ea36d690f0f443900ed0f
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Filesize
964B
MD54217b8b83ce3c3f70029a056546f8fd0
SHA1487cdb5733d073a0427418888e8f7070fe782a03
SHA2567d767e907be373c680d1f7884d779588eb643bebb3f27bf3b5ed4864aa4d8121
SHA5122a58c99fa52f99c276e27eb98aef2ce1205f16d1e37b7e87eb69e9ecda22b578195a43f1a7f70fead6ba70421abf2f85c917551c191536eaf1f3011d3d24f740