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Desiree Beck 6ce7ebadf2 Malware types (#140 )

* Create malware-types.md

* Update README.md

added link to malware type table.

* Update malware-types.md

* Update malware-types.md

* Update malware-types.md

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* Newsletter, editing E1510, E1560 (#137) (#138)

* Adding Newsletter

* Create 12182023.md

* Update README.md

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* Update e1510 (#134)

* Update clipboard-modification.md

Update to account for updates to T1115.

* Update data-encrypted-for-impact.md

fix parentheses

* Update clipboard-modification.md

* Update data-encrypted-for-impact.md

* Update clipboard-modification.md

* Moving Archive Collected Data to collection, some description updates

* Updating Last Modified

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Co-authored-by: Ryan Xu <ryanxu@wustl.edu>

* Newsletter, editing E1510, E1560 (#137) (#139)

* Adding Newsletter

* Create 12182023.md

* Update README.md

---------



* Update e1510 (#134)

* Update clipboard-modification.md

Update to account for updates to T1115.

* Update data-encrypted-for-impact.md

fix parentheses

* Update clipboard-modification.md

* Update data-encrypted-for-impact.md

* Update clipboard-modification.md

* Moving Archive Collected Data to collection, some description updates

* Updating Last Modified

---------

Co-authored-by: Ryan Xu <ryanxu@wustl.edu>

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Co-authored-by: Ryan Xu <ryanxu@wustl.edu>

2023-12-20 21:54:25 -05:00

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ID	X0043
Type	Ransomware
Aliases	None
Platforms	Windows
Year	2017
Associated ATT&CK Software	WannaCry

WannaCry

WannaCry is ransomware that was first seen in a global attack during May 2017, which affected more than 150 countries. It contains worm-like features to spread across a computer network using the SMBv1 exploit EternalBlue. [1]

ATT&CK Techniques

See ATT&CK: WannaCry - Techniques Used.

Enhanced ATT&CK Techniques

Name	Use
Defense Evasion:: Hidden Files and Directories(F0005.003)	WannaCry uses the +h attribute to hide its files. [1]
Persistence::Registry Run Keys / Startup Folder (F0012)	WannaCry creates two registry run keys to ensure persistence. [1]
Defense-Evasion::Self Deletion (F0007)	WannaCry looks for a DNS entry and if the entry exists, it terminates and deletes itself. [1]
Impact::Data Encrypted for Impact (E1486)	WannaCry encrypts files for ransom. [1]

MBC Behaviors

Name	Use
Discovery::Self Discovery (B0038)	WannaCry checks the size of the file it loads into memory. [1]
Discovery::Self Discovery (B0038.002)	WannaCry checks a string, keylen and a magic number before decrypting a dll. [1]
Discovery::Self Discovery (B0038.003)	WannaCry checks the data lengh of a section before decypting a dll. [1]

Indicators of Compromise

MD5 Hashes

db349b97c37d22f5ea1d1841e3c89eb4
84c82835a5d21bbcf75a61706d8ab549
f351e1fcca0c4ea05fc44d15a17f8b36
7bf2b57f2a205768755c07f238fb32cc

References

[1] https://www.mandiant.com/resources/blog/wannacry-malware-profile

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