Analysis
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max time kernel
93s -
max time network
94s -
platform
windows10-2004_x64 -
resource
win10v2004-20240802-en -
resource tags
arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system -
submitted
02-10-2024 17:22
Behavioral task
behavioral1
Sample
2024-10-02_cebb899489aed0f2f1d021913224fb02_destroyer_wannacry.exe
Resource
win7-20240903-en
windows7-x64
14 signatures
150 seconds
Behavioral task
behavioral2
Sample
2024-10-02_cebb899489aed0f2f1d021913224fb02_destroyer_wannacry.exe
Resource
win10v2004-20240802-en
windows10-2004-x64
16 signatures
150 seconds
General
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Target
2024-10-02_cebb899489aed0f2f1d021913224fb02_destroyer_wannacry.exe
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Size
83KB
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MD5
cebb899489aed0f2f1d021913224fb02
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SHA1
d9efd1333a59bc9f4ca626c44e99075bde25fd73
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SHA256
74422b2aad789ee68ad768e7a7b0707e3ef690460728d13b8a16a0428d3ead4d
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SHA512
a90214a4328219d33bca2899fdaf5010cb299da1370180c0a5db0a7da5922919f2248afcb982e3b8833a4fc5ee0fc077594fa4ce0f4b957c600fddfd7a01e5c0
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SSDEEP
1536:Wo2D0oWr9XemsvBhzS7NyKkKHHR72W0F00m05000tx0Zpv9w40gGpcK1U+WCvse7:Wo00oWr9XSu7NyKkKHN2W0F00m05000h
Score
10/10
Malware Config
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/3492-1-0x0000000000810000-0x000000000082C000-memory.dmp family_chaos behavioral2/files/0x0008000000023422-6.dat family_chaos -
Renames multiple (145) files with added filename extension
This suggests ransomware activity of encrypting all the files on the system.
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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-1-5-21-656926755-4116854191-210765258-1000\Control Panel\International\Geo\Nation 2024-10-02_cebb899489aed0f2f1d021913224fb02_destroyer_wannacry.exe Key value queried \REGISTRY\USER\S-1-5-21-656926755-4116854191-210765258-1000\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 4376 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 C:\Users\Admin\Favorites\Links\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\System Tools\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\Pictures\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Desktop\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Pictures\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\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 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\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\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Maintenance\Desktop.ini svchost.exe File opened for modification C:\Users\Admin\Links\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Music\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\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\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Accessories\desktop.ini svchost.exe File opened for modification F:\$RECYCLE.BIN\S-1-5-21-656926755-4116854191-210765258-1000\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\Pictures\Saved Pictures\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Saved Games\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\Public\Videos\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Documents\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\Start Menu\Programs\Administrative Tools\desktop.ini svchost.exe -
Sets desktop wallpaper using registry 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-656926755-4116854191-210765258-1000\Control Panel\Desktop\Wallpaper = "C:\\Users\\Admin\\AppData\\Local\\Temp\\na1tvpjck.jpg" svchost.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Modifies registry class 1 IoCs
description ioc Process Key created \REGISTRY\USER\S-1-5-21-656926755-4116854191-210765258-1000_Classes\Local Settings svchost.exe -
Opens file in notepad (likely ransom note) 1 IoCs
pid Process 1688 NOTEPAD.EXE -
Suspicious behavior: AddClipboardFormatListener 1 IoCs
pid Process 4376 svchost.exe -
Suspicious behavior: EnumeratesProcesses 47 IoCs
pid Process 3492 2024-10-02_cebb899489aed0f2f1d021913224fb02_destroyer_wannacry.exe 3492 2024-10-02_cebb899489aed0f2f1d021913224fb02_destroyer_wannacry.exe 3492 2024-10-02_cebb899489aed0f2f1d021913224fb02_destroyer_wannacry.exe 3492 2024-10-02_cebb899489aed0f2f1d021913224fb02_destroyer_wannacry.exe 3492 2024-10-02_cebb899489aed0f2f1d021913224fb02_destroyer_wannacry.exe 3492 2024-10-02_cebb899489aed0f2f1d021913224fb02_destroyer_wannacry.exe 3492 2024-10-02_cebb899489aed0f2f1d021913224fb02_destroyer_wannacry.exe 3492 2024-10-02_cebb899489aed0f2f1d021913224fb02_destroyer_wannacry.exe 3492 2024-10-02_cebb899489aed0f2f1d021913224fb02_destroyer_wannacry.exe 3492 2024-10-02_cebb899489aed0f2f1d021913224fb02_destroyer_wannacry.exe 3492 2024-10-02_cebb899489aed0f2f1d021913224fb02_destroyer_wannacry.exe 3492 2024-10-02_cebb899489aed0f2f1d021913224fb02_destroyer_wannacry.exe 3492 2024-10-02_cebb899489aed0f2f1d021913224fb02_destroyer_wannacry.exe 3492 2024-10-02_cebb899489aed0f2f1d021913224fb02_destroyer_wannacry.exe 3492 2024-10-02_cebb899489aed0f2f1d021913224fb02_destroyer_wannacry.exe 3492 2024-10-02_cebb899489aed0f2f1d021913224fb02_destroyer_wannacry.exe 3492 2024-10-02_cebb899489aed0f2f1d021913224fb02_destroyer_wannacry.exe 3492 2024-10-02_cebb899489aed0f2f1d021913224fb02_destroyer_wannacry.exe 3492 2024-10-02_cebb899489aed0f2f1d021913224fb02_destroyer_wannacry.exe 3492 2024-10-02_cebb899489aed0f2f1d021913224fb02_destroyer_wannacry.exe 3492 2024-10-02_cebb899489aed0f2f1d021913224fb02_destroyer_wannacry.exe 3492 2024-10-02_cebb899489aed0f2f1d021913224fb02_destroyer_wannacry.exe 3492 2024-10-02_cebb899489aed0f2f1d021913224fb02_destroyer_wannacry.exe 4376 svchost.exe 4376 svchost.exe 4376 svchost.exe 4376 svchost.exe 4376 svchost.exe 4376 svchost.exe 4376 svchost.exe 4376 svchost.exe 4376 svchost.exe 4376 svchost.exe 4376 svchost.exe 4376 svchost.exe 4376 svchost.exe 4376 svchost.exe 4376 svchost.exe 4376 svchost.exe 4376 svchost.exe 4376 svchost.exe 4376 svchost.exe 4376 svchost.exe 4376 svchost.exe 4376 svchost.exe 4376 svchost.exe 4376 svchost.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeDebugPrivilege 3492 2024-10-02_cebb899489aed0f2f1d021913224fb02_destroyer_wannacry.exe Token: SeDebugPrivilege 4376 svchost.exe -
Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 3492 wrote to memory of 4376 3492 2024-10-02_cebb899489aed0f2f1d021913224fb02_destroyer_wannacry.exe 81 PID 3492 wrote to memory of 4376 3492 2024-10-02_cebb899489aed0f2f1d021913224fb02_destroyer_wannacry.exe 81 PID 4376 wrote to memory of 1688 4376 svchost.exe 83 PID 4376 wrote to memory of 1688 4376 svchost.exe 83
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-10-02_cebb899489aed0f2f1d021913224fb02_destroyer_wannacry.exe"C:\Users\Admin\AppData\Local\Temp\2024-10-02_cebb899489aed0f2f1d021913224fb02_destroyer_wannacry.exe"1⤵
- Checks computer location settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3492 -
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)
- Sets desktop wallpaper using registry
- Modifies registry class
- Suspicious behavior: AddClipboardFormatListener
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4376 -
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:1688
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
83KB
MD5cebb899489aed0f2f1d021913224fb02
SHA1d9efd1333a59bc9f4ca626c44e99075bde25fd73
SHA25674422b2aad789ee68ad768e7a7b0707e3ef690460728d13b8a16a0428d3ead4d
SHA512a90214a4328219d33bca2899fdaf5010cb299da1370180c0a5db0a7da5922919f2248afcb982e3b8833a4fc5ee0fc077594fa4ce0f4b957c600fddfd7a01e5c0
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Filesize
8B
MD54a640322cff558e84cb098cca9270ce0
SHA19e73ea46ed71b0f8d71ac7b9a63b890213d8f548
SHA25686f9e5b51d3b3ba6b03058ca87dda7cae9e4e3fe0e5bf6de59eb5d35030b34d4
SHA5123b8f275483cb2f2216fcf22ee549677ee236b5a4066fa36245d3129819c95da461da77b8737b1270d387792535100eb156aa3919fde404e3fbfce2c8d48d3618