Analysis
- max time kernel
119s - max time network
121s - platform
windows7_x64 - resource
win7-20231129-en - resource tags
arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system - submitted
29/01/2024, 01:23
Behavioral task
behavioral1
Sample
2024-01-29_31a1acedf526005f97bed6f470c757db_chaos_destroyer_wannacry.exe
Resource
win7-20231129-en
windows7-x64
14 signatures
150 seconds
Behavioral task
behavioral2
Sample
2024-01-29_31a1acedf526005f97bed6f470c757db_chaos_destroyer_wannacry.exe
Resource
win10v2004-20231215-en
windows10-2004-x64
16 signatures
150 seconds
General
- Target 2024-01-29_31a1acedf526005f97bed6f470c757db_chaos_destroyer_wannacry.exe
- Size 26KB
- Sample240129-br2ljagdbl
- SHA256 8df39ec3aac60f56323ff08aef4e0d4cc09d4bc04d6794468a007443c3f9af5f
- MD5 31a1acedf526005f97bed6f470c757db
- SHA1 f85d9b7747e0f3e1df8f4bae0f9f3b149a54af9e
- SHA512 d367787a0fe756a0ecb63a77308aebda7a3c89c1eaa30557913278cb1e46ab7f2c1abf27b59191ec36c4542a222535652d5155715bbf30e071e6c91d6c1b5a2f
- SSDEEP 384:qYenjLLAps4T5lBavzb/xlhKOVp91QVb5hxDG5q:5OElB6sc9GVbXxDb
- MD5 SHA1 SHA512 SSDEEP
Score
10/10
Malware Config
Extracted
Path
-
C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Crashpad\read_it.txt
-
chaos
Ransom Note
- ----> Chaos is multi language ransomware. Translate your note to any language <---- 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 $1,500. 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 - hxxps://www.coinmama.com Bitpanda - hxxps://www.bitpanda.com Payment informationAmount: 0.1473766 BTC Bitcoin Address: bc1qlnzcep4l4ac0ttdrq7awxev9ehu465f2vpt9x0
Signatures
- Chaos
Ransomware family first seen in June 2021.
- Chaos Ransomware 3 IoCs
resource yara_rule behavioral1/memory/1160-0-0x0000000000FA0000-0x0000000000FAC000-memory.dmp family_chaos behavioral1/files/0x000b0000000139e0-6.dat family_chaos behavioral1/memory/2008-7-0x0000000001200000-0x000000000120C000-memory.dmp family_chaos - Detects command variations typically used by ransomware 3 IoCs
resource yara_rule behavioral1/memory/1160-0-0x0000000000FA0000-0x0000000000FAC000-memory.dmp INDICATOR_SUSPICIOUS_GENRansomware behavioral1/files/0x000b0000000139e0-6.dat INDICATOR_SUSPICIOUS_GENRansomware behavioral1/memory/2008-7-0x0000000001200000-0x000000000120C000-memory.dmp INDICATOR_SUSPICIOUS_GENRansomware - Renames multiple (178) files with added filename extension
This suggests ransomware activity of encrypting all the files on the system.
- 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 2008 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) 64 IoCs
description ioc Process File opened for modification C:\Users\Admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\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\Favorites\desktop.ini svchost.exe File opened for modification C:\Users\Public\Libraries\desktop.ini svchost.exe File opened for modification C:\Users\All Users\Microsoft\Windows\Start Menu\Programs\Accessories\Windows PowerShell\desktop.ini svchost.exe File opened for modification C:\Users\Default\AppData\Roaming\Microsoft\Internet Explorer\Quick Launch\desktop.ini svchost.exe File opened for modification C:\Users\Default\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Accessories\Accessibility\Desktop.ini svchost.exe File opened for modification C:\Users\Public\Pictures\desktop.ini svchost.exe File opened for modification C:\Users\Public\Recorded TV\Sample Media\desktop.ini svchost.exe File opened for modification C:\Users\Admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.IE5\desktop.ini svchost.exe File opened for modification C:\Users\Admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.IE5\2GIU3NG8\desktop.ini svchost.exe File opened for modification C:\Users\Admin\AppData\Local\Microsoft\Windows Mail\Stationery\Desktop.ini svchost.exe File opened for modification C:\Users\Admin\Favorites\Links for United States\desktop.ini svchost.exe File opened for modification C:\Users\Public\desktop.ini svchost.exe File opened for modification C:\Users\Public\Videos\desktop.ini svchost.exe File opened for modification C:\Users\Admin\AppData\Local\Microsoft\Feeds Cache\0U93YK0N\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Music\desktop.ini svchost.exe File opened for modification C:\Users\All Users\Microsoft\Windows\Start Menu\Programs\Accessories\Accessibility\Desktop.ini svchost.exe File opened for modification C:\Users\All Users\Microsoft\Windows\Start Menu\Programs\Maintenance\Desktop.ini svchost.exe File opened for modification C:\Users\Public\Documents\desktop.ini svchost.exe File opened for modification C:\Users\Admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.IE5\4XCMPANZ\desktop.ini svchost.exe File opened for modification C:\Users\Admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.IE5\JJ7YKCO8\desktop.ini svchost.exe File opened for modification C:\Users\Default\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Maintenance\Desktop.ini svchost.exe File opened for modification C:\Users\Public\Desktop\desktop.ini svchost.exe File opened for modification C:\Users\Admin\AppData\Local\Microsoft\Windows\History\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\Accessories\Accessibility\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\desktop.ini svchost.exe File opened for modification C:\Users\Public\Videos\Sample Videos\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Contacts\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Downloads\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Saved Games\desktop.ini svchost.exe File opened for modification C:\Users\Public\Downloads\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\Accessories\System Tools\Desktop.ini svchost.exe File opened for modification C:\Users\All Users\Microsoft\Windows\Start Menu\desktop.ini svchost.exe File opened for modification C:\Users\All Users\Microsoft\Windows\Start Menu\Programs\desktop.ini svchost.exe File opened for modification C:\Users\Default\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Accessories\Desktop.ini svchost.exe File opened for modification C:\Users\Public\Recorded TV\desktop.ini svchost.exe File opened for modification C:\Users\Admin\AppData\Local\Microsoft\Feeds Cache\BP3UABCB\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Videos\desktop.ini svchost.exe File opened for modification C:\Users\All Users\Microsoft\Windows\Start Menu\Programs\Startup\desktop.ini svchost.exe File opened for modification C:\Users\Default\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Accessories\System Tools\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\All Users\Microsoft\Windows\Start Menu\Programs\Games\Desktop.ini svchost.exe File opened for modification C:\Users\Admin\AppData\Local\Microsoft\Feeds Cache\desktop.ini svchost.exe File opened for modification C:\Users\Admin\AppData\Local\Microsoft\Feeds Cache\FW0P2MZH\desktop.ini svchost.exe File opened for modification C:\Users\Admin\AppData\Local\Microsoft\Windows\History\History.IE5\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\All Users\Microsoft\Windows\Ringtones\desktop.ini svchost.exe File opened for modification C:\Users\All Users\Microsoft\Windows\Start Menu\Programs\Accessories\Desktop.ini svchost.exe File opened for modification C:\Users\All Users\Microsoft\Windows\Start Menu\Programs\Accessories\System Tools\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\Programs\Accessories\Desktop.ini svchost.exe File opened for modification C:\Users\Admin\Favorites\Links\desktop.ini svchost.exe File opened for modification C:\Users\Default\AppData\Roaming\Microsoft\Windows\SendTo\Desktop.ini svchost.exe File opened for modification C:\Users\Public\Music\Sample Music\desktop.ini svchost.exe File opened for modification C:\Users\Admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.IE5\CMDLW4SJ\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Desktop\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Documents\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Searches\desktop.ini svchost.exe File opened for modification C:\Users\Public\Pictures\Sample Pictures\desktop.ini svchost.exe - Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- Opens file in notepad (likely ransom note) 1 IoCs
pid Process 2328 NOTEPAD.EXE - Suspicious behavior: AddClipboardFormatListener 1 IoCs
pid Process 2008 svchost.exe - Suspicious behavior: EnumeratesProcesses 6 IoCs
pid Process 1160 2024-01-29_31a1acedf526005f97bed6f470c757db_chaos_destroyer_wannacry.exe 1160 2024-01-29_31a1acedf526005f97bed6f470c757db_chaos_destroyer_wannacry.exe 2008 svchost.exe 2008 svchost.exe 2008 svchost.exe 2008 svchost.exe - Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeDebugPrivilege 1160 2024-01-29_31a1acedf526005f97bed6f470c757db_chaos_destroyer_wannacry.exe Token: SeDebugPrivilege 2008 svchost.exe - Suspicious use of WriteProcessMemory 6 IoCs
description pid Process procid_target PID 1160 wrote to memory of 2008 1160 2024-01-29_31a1acedf526005f97bed6f470c757db_chaos_destroyer_wannacry.exe 28 PID 1160 wrote to memory of 2008 1160 2024-01-29_31a1acedf526005f97bed6f470c757db_chaos_destroyer_wannacry.exe 28 PID 1160 wrote to memory of 2008 1160 2024-01-29_31a1acedf526005f97bed6f470c757db_chaos_destroyer_wannacry.exe 28 PID 2008 wrote to memory of 2328 2008 svchost.exe 30 PID 2008 wrote to memory of 2328 2008 svchost.exe 30 PID 2008 wrote to memory of 2328 2008 svchost.exe 30
Processes
-
C:\Users\Admin\AppData\Local\Temp\2024-01-29_31a1acedf526005f97bed6f470c757db_chaos_destroyer_wannacry.exe"C:\Users\Admin\AppData\Local\Temp\2024-01-29_31a1acedf526005f97bed6f470c757db_chaos_destroyer_wannacry.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1160 -
C:\Users\Admin\AppData\Roaming\svchost.exe"C:\Users\Admin\AppData\Roaming\svchost.exe"2⤵
- Drops startup file
- Executes dropped EXE
- Drops desktop.ini file(s)
- Suspicious behavior: AddClipboardFormatListener
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2008 -
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:2328
-
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Crashpad\read_it.txt
- Size 964B
- SHA256 7d767e907be373c680d1f7884d779588eb643bebb3f27bf3b5ed4864aa4d8121
- MD5 4217b8b83ce3c3f70029a056546f8fd0
- SHA1 487cdb5733d073a0427418888e8f7070fe782a03
- SHA512 2a58c99fa52f99c276e27eb98aef2ce1205f16d1e37b7e87eb69e9ecda22b578195a43f1a7f70fead6ba70421abf2f85c917551c191536eaf1f3011d3d24f740
- MD5 SHA1 SHA512
- Path C:\Users\Admin\AppData\Roaming\JoinProtect.xlt
- Size 1B
- SHA256 8a8de823d5ed3e12746a62ef169bcf372be0ca44f0a1236abc35df05d96928e1
- MD5 d1457b72c3fb323a2671125aef3eab5d
- SHA1 5bab61eb53176449e25c2c82f172b82cb13ffb9d
- SHA512 ca63c07ad35d8c9fb0c92d6146759b122d4ec5d3f67ebe2f30ddb69f9e6c9fd3bf31a5e408b08f1d4d9cd68120cced9e57f010bef3cde97653fed5470da7d1a0
- MD5 SHA1 SHA512
- Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\IEDownloadHistory\container.dat.zBuC4U1gdjGnWnE
- Size 368B
- SHA256 14ac01da9abd863b84ac86685ffb41c994ea3afd63ff62242c64cb573b5a33e8
- MD5 84fbb25faca489338b93d8cc9eeb84d2
- SHA1 1644470b995d5f622a69465c103a03b8e3a09d68
- SHA512 89b6e286c1abfcf916263d8d57a4cf543b535953a018f71cc2505c0f4e64db361e656820e286d8d7c5d9a0358503464e646301ae9058ba1057c30f60b578ff40
- MD5 SHA1 SHA512
- Path C:\Users\Admin\AppData\Roaming\svchost.exe
- Size 26KB
- SHA256 8df39ec3aac60f56323ff08aef4e0d4cc09d4bc04d6794468a007443c3f9af5f
- MD5 31a1acedf526005f97bed6f470c757db
- SHA1 f85d9b7747e0f3e1df8f4bae0f9f3b149a54af9e
- SHA512 d367787a0fe756a0ecb63a77308aebda7a3c89c1eaa30557913278cb1e46ab7f2c1abf27b59191ec36c4542a222535652d5155715bbf30e071e6c91d6c1b5a2f
- SSDEEP 384:qYenjLLAps4T5lBavzb/xlhKOVp91QVb5hxDG5q:5OElB6sc9GVbXxDb
- MD5 SHA1 SHA512 SSDEEP