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Threat Group Cards: A Threat Actor Encyclopedia

Permanent link Tool: ArtraDownloader

NamesArtraDownloader
CategoryMalware
TypeDownloader
Description(Palo Alto) Overall, the ArtraDownloader malware family is not sophisticated, leveraging simple registry keys for persistence and HTTP requests to download and execute a remote file. Important strings within these samples are obfuscated by adding or subtracting from each byte within a string. This same obfuscation routine is used when sending data via HTTP.

This downloader has frequently been observed downloading the Remote Access Trojan (RAT) BitterRAT which is associated with BITTER threat operations.
Information<https://unit42.paloaltonetworks.com/multiple-artradownloader-variants-used-by-bitter-to-target-pakistan/>
Malpedia<https://malpedia.caad.fkie.fraunhofer.de/details/win.artra>
AlienVault OTX<https://otx.alienvault.com/browse/pulses?q=tag:ArtraDownloader>

Last change to this tool card: 23 April 2020

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All groups using tool ArtraDownloader

ChangedNameCountryObserved

APT groups

 Bitter[South Asia]2013-May 2019 
XPatchwork, Dropping ElephantIndia2013-Mar 2018 

2 groups listed (2 APT, 0 other, 0 unknown)

Thailand Computer Emergency Response Team (ThaiCERT)
Electronic Transactions Development Agency

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