Analysis
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max time kernel
145s -
max time network
147s -
platform
windows10-2004_x64 -
resource
win10v2004-20240226-en -
resource tags
arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system -
submitted
10-03-2024 21:24
Behavioral task
behavioral1
Sample
2024-03-10_8c6c723a4839d62780e8761b9513df5b_wannacry.exe
Resource
win7-20240221-en
windows7-x64
14 signatures
150 seconds
Behavioral task
behavioral2
Sample
2024-03-10_8c6c723a4839d62780e8761b9513df5b_wannacry.exe
Resource
win10v2004-20240226-en
windows10-2004-x64
16 signatures
150 seconds
General
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Target
2024-03-10_8c6c723a4839d62780e8761b9513df5b_wannacry.exe
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Size
189KB
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MD5
8c6c723a4839d62780e8761b9513df5b
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SHA1
3704056af3cc91c56fcca5577a60843a99732e7d
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SHA256
279ef35a9f2748763ffa8107d1f6c3cf6d629979ea58403af6b2297f80d9eb72
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SHA512
46360c4493ade57dc92112bc59681c0cc787fc192b132cbd8e62bdbbeeb23694c2a112ec2d6fad20e4630a92eaacfbf5444bc817e281fd7da7ff85b43737562d
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SSDEEP
3072:lojUMpar9prL/txWwbPCXMoHTXdv14469I6HptMTmshOR9:hrr9pnzbPnoH36HptMphOR
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/1916-0-0x0000000000E10000-0x0000000000E46000-memory.dmp family_chaos behavioral2/files/0x0009000000023247-6.dat family_chaos -
Detects command variations typically used by ransomware 2 IoCs
resource yara_rule behavioral2/memory/1916-0-0x0000000000E10000-0x0000000000E46000-memory.dmp INDICATOR_SUSPICIOUS_GENRansomware behavioral2/files/0x0009000000023247-6.dat INDICATOR_SUSPICIOUS_GENRansomware -
Renames multiple (150) 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-1-5-21-275798769-4264537674-1142822080-1000\Control Panel\International\Geo\Nation 2024-03-10_8c6c723a4839d62780e8761b9513df5b_wannacry.exe Key value queried \REGISTRY\USER\S-1-5-21-275798769-4264537674-1142822080-1000\Control Panel\International\Geo\Nation svchost.exe -
Drops startup file 3 IoCs
description ioc Process 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\@zarik [email protected] svchost.exe File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\svchost.url svchost.exe -
Executes dropped EXE 1 IoCs
pid Process 956 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\Saved Games\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\System Tools\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\Pictures\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Music\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 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\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\Downloads\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 C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Libraries\desktop.ini svchost.exe File opened for modification F:\$RECYCLE.BIN\S-1-5-21-275798769-4264537674-1142822080-1000\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\Public\Desktop\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Desktop\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\Programs\Maintenance\Desktop.ini svchost.exe File opened for modification C:\Users\Admin\Searches\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\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\Contacts\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Documents\desktop.ini svchost.exe File opened for modification C:\Users\Admin\OneDrive\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\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 -
Sets desktop wallpaper using registry 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-275798769-4264537674-1142822080-1000\Control Panel\Desktop\Wallpaper = "C:\\Users\\Admin\\AppData\\Local\\Temp\\pv5fmdcb4.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-1-5-21-275798769-4264537674-1142822080-1000_Classes\Local Settings svchost.exe -
Suspicious behavior: AddClipboardFormatListener 1 IoCs
pid Process 956 svchost.exe -
Suspicious behavior: EnumeratesProcesses 52 IoCs
pid Process 1916 2024-03-10_8c6c723a4839d62780e8761b9513df5b_wannacry.exe 1916 2024-03-10_8c6c723a4839d62780e8761b9513df5b_wannacry.exe 1916 2024-03-10_8c6c723a4839d62780e8761b9513df5b_wannacry.exe 1916 2024-03-10_8c6c723a4839d62780e8761b9513df5b_wannacry.exe 1916 2024-03-10_8c6c723a4839d62780e8761b9513df5b_wannacry.exe 1916 2024-03-10_8c6c723a4839d62780e8761b9513df5b_wannacry.exe 1916 2024-03-10_8c6c723a4839d62780e8761b9513df5b_wannacry.exe 1916 2024-03-10_8c6c723a4839d62780e8761b9513df5b_wannacry.exe 1916 2024-03-10_8c6c723a4839d62780e8761b9513df5b_wannacry.exe 1916 2024-03-10_8c6c723a4839d62780e8761b9513df5b_wannacry.exe 1916 2024-03-10_8c6c723a4839d62780e8761b9513df5b_wannacry.exe 1916 2024-03-10_8c6c723a4839d62780e8761b9513df5b_wannacry.exe 1916 2024-03-10_8c6c723a4839d62780e8761b9513df5b_wannacry.exe 1916 2024-03-10_8c6c723a4839d62780e8761b9513df5b_wannacry.exe 1916 2024-03-10_8c6c723a4839d62780e8761b9513df5b_wannacry.exe 1916 2024-03-10_8c6c723a4839d62780e8761b9513df5b_wannacry.exe 1916 2024-03-10_8c6c723a4839d62780e8761b9513df5b_wannacry.exe 1916 2024-03-10_8c6c723a4839d62780e8761b9513df5b_wannacry.exe 1916 2024-03-10_8c6c723a4839d62780e8761b9513df5b_wannacry.exe 1916 2024-03-10_8c6c723a4839d62780e8761b9513df5b_wannacry.exe 1916 2024-03-10_8c6c723a4839d62780e8761b9513df5b_wannacry.exe 1916 2024-03-10_8c6c723a4839d62780e8761b9513df5b_wannacry.exe 1916 2024-03-10_8c6c723a4839d62780e8761b9513df5b_wannacry.exe 1916 2024-03-10_8c6c723a4839d62780e8761b9513df5b_wannacry.exe 1916 2024-03-10_8c6c723a4839d62780e8761b9513df5b_wannacry.exe 956 svchost.exe 956 svchost.exe 956 svchost.exe 956 svchost.exe 956 svchost.exe 956 svchost.exe 956 svchost.exe 956 svchost.exe 956 svchost.exe 956 svchost.exe 956 svchost.exe 956 svchost.exe 956 svchost.exe 956 svchost.exe 956 svchost.exe 956 svchost.exe 956 svchost.exe 956 svchost.exe 956 svchost.exe 956 svchost.exe 956 svchost.exe 956 svchost.exe 956 svchost.exe 956 svchost.exe 956 svchost.exe 956 svchost.exe 956 svchost.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeDebugPrivilege 1916 2024-03-10_8c6c723a4839d62780e8761b9513df5b_wannacry.exe Token: SeDebugPrivilege 956 svchost.exe -
Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 1916 wrote to memory of 956 1916 2024-03-10_8c6c723a4839d62780e8761b9513df5b_wannacry.exe 99 PID 1916 wrote to memory of 956 1916 2024-03-10_8c6c723a4839d62780e8761b9513df5b_wannacry.exe 99 PID 956 wrote to memory of 1780 956 svchost.exe 102 PID 956 wrote to memory of 1780 956 svchost.exe 102
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-03-10_8c6c723a4839d62780e8761b9513df5b_wannacry.exe"C:\Users\Admin\AppData\Local\Temp\2024-03-10_8c6c723a4839d62780e8761b9513df5b_wannacry.exe"1⤵
- Checks computer location settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1916 -
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:956 -
C:\Windows\system32\NOTEPAD.EXEPID:1780
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
189KB
MD58c6c723a4839d62780e8761b9513df5b
SHA13704056af3cc91c56fcca5577a60843a99732e7d
SHA256279ef35a9f2748763ffa8107d1f6c3cf6d629979ea58403af6b2297f80d9eb72
SHA51246360c4493ade57dc92112bc59681c0cc787fc192b132cbd8e62bdbbeeb23694c2a112ec2d6fad20e4630a92eaacfbf5444bc817e281fd7da7ff85b43737562d
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C:\Users\Admin\Documents\@zarik [email protected]
Filesize192B
MD50f3192c97d96e862abdd464698ecbc9f
SHA1d6ad1e331a8c8403159e09a16cc1ddb4b24534fb
SHA256ae0665dbe51e1fc225ed189c55b77b33a17d2f707201abdc1fc3d587a424ba0e
SHA512847836318b900001b2da9db34a70d8139f19132ed5d69d78c1015f24d7c5b0d4eeedae3c74717a2e24f67ec96ed68dc143dfae55db9a6773602756edac2f0aa7