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Desiree Beck 6ce7ebadf2 Malware types (#140 )

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added link to malware type table.

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

* Adding Newsletter

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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>

---------

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

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

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ID	X0029
Type	Ransomware
Aliases	None
Platforms	Windows
Year	2014
Associated ATT&CK Software	None

CryptoWall

CryptoWall is a family of ransomware. [1]

ATT&CK Techniques

Name	Use
Initial Access::Spearphishing Attachment (T1566.001)	The malware file is sent as an attachment. [1]
Impact::Inhibit System Recovery (T1490)	The malware deletes volume shadow copies using vssadmin.exe. [1]
Command and Control::Proxy (T1090)	The malware tries to connect to I2P proxies. [1]
Impact::Data Encrypted for Impact (T1486)	The malware encrypts files. [1]
Command and Control::Proxy (T1090)	The malware tries to connect to I2P proxies. [1]

Enhanced ATT&CK Techniques

Name	Use
Impact::Data Encrypted for Impact::Ransom Note (E1486.001)	The malware launches Internet Explorer to show ransom notes. [1]
Discovery::File and Directory Discovery (E1083)	The malware searches for user files before encrypting them. [1]
Defense Evasion::Process Injection (E1055)	The malware injects code into a new svchost process. [1]
Persistence::Registry Run Keys / Startup Folder (F0012)	A copy of Crytowall is placed in the startup folder and a directory at the root of the system drive. Also adds multiple "autostart" registry keys. [2]

MBC Behaviors

Name	Use
Command and Control::C2 Communication::Send Data (B0030.001)	The malware sends a hash value generated from system information. [1]
Command and Control::C2 Communication::Receive Data (B0030.002)	The malware receives a public key from the C2. [1]

Indicators of Compromise

SHA256 Hashes

03467f231a3fce6795545ae99a6dad161effa3bf681031693815eabf1648ee66
7ed58ef4fd3dc4efaea9e595614553445afb055c0c675b692f12a5629251b040

References

[1] https://news.sophos.com/en-us/2015/12/17/the-current-state-of-ransomware-cryptowall/

[2] https://www.secureworks.com/research/cryptowall-ransomware

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