Analysis
- max time kernel
95s - max time network
97s - platform
windows10-2004_x64 - resource
win10v2004-20240802-en - resource tags
arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system - submitted
18/09/2024, 22:29
Behavioral task
behavioral1
Sample
202409182136851bb03a3f5b5dfeb64558e2074achaosdestroyerwannacry.exe
Resource
win7-20240903-en
windows7-x64
18 signatures
150 seconds
Behavioral task
behavioral2
Sample
202409182136851bb03a3f5b5dfeb64558e2074achaosdestroyerwannacry.exe
Resource
win10v2004-20240802-en
windows10-2004-x64
21 signatures
150 seconds
General
- Target 202409182136851bb03a3f5b5dfeb64558e2074achaosdestroyerwannacry.exe
- Size 25KB
- Sample240918-2edl2swfje
- SHA256 a3c442d58a5b6f05a7faf34b88b8c1ea2aeab52f76cd22ebbb4bc611fbac99ae
- MD5 2136851bb03a3f5b5dfeb64558e2074a
- SHA1 992bb4b51f2ef49508dff162bf75a53450dde994
- SHA512 85cbf62b565bd3a0a624ddcc1c48f93d5cce8c59a54658ec28a5323ee269b1db9bdf49968c32728ebac54179c3cc8617310acb7dde439f0907589aae699c5356
- SSDEEP 384:o3Mg/bqo2shyDpqyJOjPJDRr91CKnZKurAy3Yrek:Wqo2KipVOjhNr9PZKurEek
- MD5 SHA1 SHA512 SSDEEP
Malware Config
Extracted
Path
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C:\Users\Admin\Documents\DECRYPTION INFORMATION.txt
Ransom Note
- All of your files have been encrypted! Your computer was infected with a ransomware virus. Your files have been encrypted and you won't be able to decrypt them without our help.What can I do to get my files back?You can buy our special decryption software, this software will allow you to recover all of your data and remove the ransomware from your computer.The price for the software is $100. Payment can be made in Bitcoin only. How do I pay, where do I get Bitcoin? Purchasing Bitcoin varies from country to country, you are best advised to do a quick google search yourself to find out how to buy Bitcoin. Many of our customers have reported these sites to be fast and reliable: Coinmama - https://www.coinmama.com Bitpanda - https://www.bitpanda.com Payment information Amount: 0.0017 BTC ($100) Bitcoin Address: bc1q909n8v9tmhfnh5ptrfjqjum2tp9tuucag6ldvm Attention! Do not rename encrypted files. Do not try to decrypt your data using third party software - it may cause permanent data loss. We are always ready to cooperate and find the best way to solve your problem. Our company values its reputation. We give all guarantees of your files decryption. What are your recommendations? - Never change the name of the files, if you want to manipulate the files, be sure to back them up. If there are any problems with the files, we are not responsible for them. - Never work with intermediary companies because they charge you more money. Have a nice day :)
URLs
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https://www.coinmama.com
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https://www.bitpanda.com
Signatures
- Chaos
Ransomware family first seen in June 2021.
- Chaos Ransomware 2 IoCs
resource yara_rule behavioral2/memory/1196-1-0x0000000000990000-0x000000000099C000-memory.dmp family_chaos behavioral2/files/0x00080000000233fb-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 1600 bcdedit.exe 3904 bcdedit.exe - Renames multiple (215) files with added filename extension
This suggests ransomware activity of encrypting all the files on the system.
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pid Process 2484 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-1-5-21-2412658365-3084825385-3340777666-1000\Control Panel\International\Geo\Nation 202409182136851bb03a3f5b5dfeb64558e2074achaosdestroyerwannacry.exe Key value queried \REGISTRY\USER\S-1-5-21-2412658365-3084825385-3340777666-1000\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\DECRYPTION INFORMATION.txt svchost.exe - Executes dropped EXE 1 IoCs
pid Process 1948 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\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\Desktop\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\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Accessibility\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\Videos\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\Public\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\Pictures\Saved Pictures\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Music\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Saved Games\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\AccountPictures\desktop.ini svchost.exe File opened for modification F:\$RECYCLE.BIN\S-1-5-21-2412658365-3084825385-3340777666-1000\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\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\Public\Music\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\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\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\System Tools\Desktop.ini svchost.exe File opened for modification C:\Users\Admin\Links\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\Internet Explorer\Quick Launch\User Pinned\TaskBar\desktop.ini svchost.exe File opened for modification C:\Users\Public\Documents\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 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 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 3 TTPs 1 IoCs
Shadow copies are often targeted by ransomware to inhibit system recovery.
pid Process 1636 vssadmin.exe - Modifies registry class 1 IoCs
description ioc Process Key created \REGISTRY\USER\S-1-5-21-2412658365-3084825385-3340777666-1000_Classes\Local Settings svchost.exe - Suspicious behavior: AddClipboardFormatListener 1 IoCs
pid Process 1948 svchost.exe - Suspicious behavior: EnumeratesProcesses 47 IoCs
pid Process 1196 202409182136851bb03a3f5b5dfeb64558e2074achaosdestroyerwannacry.exe 1196 202409182136851bb03a3f5b5dfeb64558e2074achaosdestroyerwannacry.exe 1196 202409182136851bb03a3f5b5dfeb64558e2074achaosdestroyerwannacry.exe 1196 202409182136851bb03a3f5b5dfeb64558e2074achaosdestroyerwannacry.exe 1196 202409182136851bb03a3f5b5dfeb64558e2074achaosdestroyerwannacry.exe 1196 202409182136851bb03a3f5b5dfeb64558e2074achaosdestroyerwannacry.exe 1196 202409182136851bb03a3f5b5dfeb64558e2074achaosdestroyerwannacry.exe 1196 202409182136851bb03a3f5b5dfeb64558e2074achaosdestroyerwannacry.exe 1196 202409182136851bb03a3f5b5dfeb64558e2074achaosdestroyerwannacry.exe 1196 202409182136851bb03a3f5b5dfeb64558e2074achaosdestroyerwannacry.exe 1196 202409182136851bb03a3f5b5dfeb64558e2074achaosdestroyerwannacry.exe 1196 202409182136851bb03a3f5b5dfeb64558e2074achaosdestroyerwannacry.exe 1196 202409182136851bb03a3f5b5dfeb64558e2074achaosdestroyerwannacry.exe 1196 202409182136851bb03a3f5b5dfeb64558e2074achaosdestroyerwannacry.exe 1196 202409182136851bb03a3f5b5dfeb64558e2074achaosdestroyerwannacry.exe 1196 202409182136851bb03a3f5b5dfeb64558e2074achaosdestroyerwannacry.exe 1196 202409182136851bb03a3f5b5dfeb64558e2074achaosdestroyerwannacry.exe 1196 202409182136851bb03a3f5b5dfeb64558e2074achaosdestroyerwannacry.exe 1196 202409182136851bb03a3f5b5dfeb64558e2074achaosdestroyerwannacry.exe 1196 202409182136851bb03a3f5b5dfeb64558e2074achaosdestroyerwannacry.exe 1196 202409182136851bb03a3f5b5dfeb64558e2074achaosdestroyerwannacry.exe 1196 202409182136851bb03a3f5b5dfeb64558e2074achaosdestroyerwannacry.exe 1196 202409182136851bb03a3f5b5dfeb64558e2074achaosdestroyerwannacry.exe 1948 svchost.exe 1948 svchost.exe 1948 svchost.exe 1948 svchost.exe 1948 svchost.exe 1948 svchost.exe 1948 svchost.exe 1948 svchost.exe 1948 svchost.exe 1948 svchost.exe 1948 svchost.exe 1948 svchost.exe 1948 svchost.exe 1948 svchost.exe 1948 svchost.exe 1948 svchost.exe 1948 svchost.exe 1948 svchost.exe 1948 svchost.exe 1948 svchost.exe 1948 svchost.exe 1948 svchost.exe 1948 svchost.exe 1948 svchost.exe - Suspicious use of AdjustPrivilegeToken 50 IoCs
description pid Process Token: SeDebugPrivilege 1196 202409182136851bb03a3f5b5dfeb64558e2074achaosdestroyerwannacry.exe Token: SeDebugPrivilege 1948 svchost.exe Token: SeBackupPrivilege 4540 vssvc.exe Token: SeRestorePrivilege 4540 vssvc.exe Token: SeAuditPrivilege 4540 vssvc.exe Token: SeIncreaseQuotaPrivilege 3748 WMIC.exe Token: SeSecurityPrivilege 3748 WMIC.exe Token: SeTakeOwnershipPrivilege 3748 WMIC.exe Token: SeLoadDriverPrivilege 3748 WMIC.exe Token: SeSystemProfilePrivilege 3748 WMIC.exe Token: SeSystemtimePrivilege 3748 WMIC.exe Token: SeProfSingleProcessPrivilege 3748 WMIC.exe Token: SeIncBasePriorityPrivilege 3748 WMIC.exe Token: SeCreatePagefilePrivilege 3748 WMIC.exe Token: SeBackupPrivilege 3748 WMIC.exe Token: SeRestorePrivilege 3748 WMIC.exe Token: SeShutdownPrivilege 3748 WMIC.exe Token: SeDebugPrivilege 3748 WMIC.exe Token: SeSystemEnvironmentPrivilege 3748 WMIC.exe Token: SeRemoteShutdownPrivilege 3748 WMIC.exe Token: SeUndockPrivilege 3748 WMIC.exe Token: SeManageVolumePrivilege 3748 WMIC.exe Token: 33 3748 WMIC.exe Token: 34 3748 WMIC.exe Token: 35 3748 WMIC.exe Token: 36 3748 WMIC.exe Token: SeIncreaseQuotaPrivilege 3748 WMIC.exe Token: SeSecurityPrivilege 3748 WMIC.exe Token: SeTakeOwnershipPrivilege 3748 WMIC.exe Token: SeLoadDriverPrivilege 3748 WMIC.exe Token: SeSystemProfilePrivilege 3748 WMIC.exe Token: SeSystemtimePrivilege 3748 WMIC.exe Token: SeProfSingleProcessPrivilege 3748 WMIC.exe Token: SeIncBasePriorityPrivilege 3748 WMIC.exe Token: SeCreatePagefilePrivilege 3748 WMIC.exe Token: SeBackupPrivilege 3748 WMIC.exe Token: SeRestorePrivilege 3748 WMIC.exe Token: SeShutdownPrivilege 3748 WMIC.exe Token: SeDebugPrivilege 3748 WMIC.exe Token: SeSystemEnvironmentPrivilege 3748 WMIC.exe Token: SeRemoteShutdownPrivilege 3748 WMIC.exe Token: SeUndockPrivilege 3748 WMIC.exe Token: SeManageVolumePrivilege 3748 WMIC.exe Token: 33 3748 WMIC.exe Token: 34 3748 WMIC.exe Token: 35 3748 WMIC.exe Token: 36 3748 WMIC.exe Token: SeBackupPrivilege 4788 wbengine.exe Token: SeRestorePrivilege 4788 wbengine.exe Token: SeSecurityPrivilege 4788 wbengine.exe - Suspicious use of WriteProcessMemory 20 IoCs
description pid Process procid_target PID 1196 wrote to memory of 1948 1196 202409182136851bb03a3f5b5dfeb64558e2074achaosdestroyerwannacry.exe 82 PID 1196 wrote to memory of 1948 1196 202409182136851bb03a3f5b5dfeb64558e2074achaosdestroyerwannacry.exe 82 PID 1948 wrote to memory of 4404 1948 svchost.exe 89 PID 1948 wrote to memory of 4404 1948 svchost.exe 89 PID 4404 wrote to memory of 1636 4404 cmd.exe 91 PID 4404 wrote to memory of 1636 4404 cmd.exe 91 PID 4404 wrote to memory of 3748 4404 cmd.exe 94 PID 4404 wrote to memory of 3748 4404 cmd.exe 94 PID 1948 wrote to memory of 1036 1948 svchost.exe 95 PID 1948 wrote to memory of 1036 1948 svchost.exe 95 PID 1036 wrote to memory of 1600 1036 cmd.exe 97 PID 1036 wrote to memory of 1600 1036 cmd.exe 97 PID 1036 wrote to memory of 3904 1036 cmd.exe 98 PID 1036 wrote to memory of 3904 1036 cmd.exe 98 PID 1948 wrote to memory of 2076 1948 svchost.exe 99 PID 1948 wrote to memory of 2076 1948 svchost.exe 99 PID 2076 wrote to memory of 2484 2076 cmd.exe 101 PID 2076 wrote to memory of 2484 2076 cmd.exe 101 PID 1948 wrote to memory of 2412 1948 svchost.exe 105 PID 1948 wrote to memory of 2412 1948 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.
- 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\202409182136851bb03a3f5b5dfeb64558e2074achaosdestroyerwannacry.exe"C:\Users\Admin\AppData\Local\Temp\202409182136851bb03a3f5b5dfeb64558e2074achaosdestroyerwannacry.exe"1⤵
- Checks computer location settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1196 -
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:1948 -
C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" /C vssadmin delete shadows /all /quiet & wmic shadowcopy delete3⤵
- Suspicious use of WriteProcessMemory
PID:4404 -
C:\Windows\system32\vssadmin.exevssadmin delete shadows /all /quiet4⤵
- Interacts with shadow copies
PID:1636
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C:\Windows\System32\Wbem\WMIC.exewmic shadowcopy delete4⤵
- Suspicious use of AdjustPrivilegeToken
PID:3748
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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:1036 -
C:\Windows\system32\bcdedit.exebcdedit /set {default} bootstatuspolicy ignoreallfailures4⤵
- Modifies boot configuration data using bcdedit
PID:1600
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C:\Windows\system32\bcdedit.exebcdedit /set {default} recoveryenabled no4⤵
- Modifies boot configuration data using bcdedit
PID:3904
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C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" /C wbadmin delete catalog -quiet3⤵
- Suspicious use of WriteProcessMemory
PID:2076 -
C:\Windows\system32\wbadmin.exewbadmin delete catalog -quiet4⤵
- Deletes backup catalog
PID:2484
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C:\Windows\system32\NOTEPAD.EXE"C:\Windows\system32\NOTEPAD.EXE" C:\Users\Admin\AppData\Roaming\DECRYPTION INFORMATION.txt3⤵PID:2412
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C:\Windows\system32\vssvc.exeC:\Windows\system32\vssvc.exe1⤵
- Suspicious use of AdjustPrivilegeToken
PID:4540
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C:\Windows\system32\wbengine.exe"C:\Windows\system32\wbengine.exe"1⤵
- Suspicious use of AdjustPrivilegeToken
PID:4788
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C:\Windows\System32\vdsldr.exeC:\Windows\System32\vdsldr.exe -Embedding1⤵PID:4072
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C:\Windows\System32\vds.exeC:\Windows\System32\vds.exe1⤵
- Checks SCSI registry key(s)
PID:1104
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Roaming\svchost.exe
- Size 25KB
- SHA256 a3c442d58a5b6f05a7faf34b88b8c1ea2aeab52f76cd22ebbb4bc611fbac99ae
- MD5 2136851bb03a3f5b5dfeb64558e2074a
- SHA1 992bb4b51f2ef49508dff162bf75a53450dde994
- SHA512 85cbf62b565bd3a0a624ddcc1c48f93d5cce8c59a54658ec28a5323ee269b1db9bdf49968c32728ebac54179c3cc8617310acb7dde439f0907589aae699c5356
- SSDEEP 384:o3Mg/bqo2shyDpqyJOjPJDRr91CKnZKurAy3Yrek:Wqo2KipVOjhNr9PZKurEek
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Users\Admin\Documents\DECRYPTION INFORMATION.txt
- Size 1KB
- SHA256 166a930b29979241f105c78b2f786a710f208599bb304a16acca3de570be26c6
- MD5 74514450303945d01027fc42364029dd
- SHA1 625933e2e6d685ebd31f08dd8e6219e4dc2d8dc8
- SHA512 6c5b1215bad6919306f16cbf26263292fcba0786db9121a64edcaf8f5c6d1e657f463e2fdfc2ee0c7abd9088aab03fa03f26ac9823ad7d1cd2c7dc56000b2535
- MD5 SHA1 SHA512