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Threat intelligence
Threat actor

Tortoiseshell

Profile from actors.mlab.sh, coverage from our own index.

Suspected origin
Iran
First seen
2018-01-01 00:00:00
Motivation
Information theft and espionage
Targeted sectors
Aerospace, Defense, IT, Shipping and Logistics, Maritime and Shipbuilding
TLP
WHITE

(Symantec) A previously undocumented attack group is using both custom and off-the-shelf malware to target IT providers in Saudi Arabia in what appear to be supply chain attacks with the end goal of compromising the IT providers’ customers. The group, which we are calling Tortoiseshell, has been active since at least July 2018. Symantec has identified a total of 11 organizations hit by the group, the majority of which are based in Saudi Arabia. In at least two organizations, evidence suggests that the attackers gained domain admin-level access. Overlap has been found with Magic Hound’s Subgroup: TA455, Smoke Sandstorm.

Also known as

Cobalt FiresideCrimson SandstormCuboid SandstormCuriumDevious SerpensHouseblendImperial KittenMarcella FloresTA456Tortoise ShellTortoiseshellYellow Liderc

Tooling and malware

IMAPLoader

MITRE ATT&CK techniques

T1005 Data from Local SystemT1082 System Information DiscoveryT1124 System Time DiscoveryT1041 Exfiltration Over C2 ChannelT1189 Drive-by Compromise

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