# Sima: threat group profile

> Sima is a threat group thought to operate from Iran. Public reporting about it is still limited. This free profile brings together what is known about it, so you can judge the risk to you. It lists the other names the group goes by and links to every public report behind it.

Canonical page: https://www.edgeprotect.io/threat-actors/sima
Breadcrumb: [Home](https://www.edgeprotect.io/) > [Threat groups](https://www.edgeprotect.io/threat-actors) > Sima

## At a glance

| Fact | Value |
|---|---|
| Attack techniques | 0 |
| Thought to operate from | Iran |
| Other names | 0 |
| Public reports | 2 |

## Who is Sima?

Sima is a threat group thought to operate from Iran. Public reporting about it is still limited.

### What public reporting says

> Sima is a group of suspected Iranian origin targeting Iranians in diaspora. In February 2016, Iran-focused individuals received messages purporting to be from Human RightsWatch's (HRW) Emergencies Director, requesting that they read an article about Iran pressing Afghanr efugees to fight in Syria. While referencing a real report published by HRW, the links provided for the Director’s biography and article directed the recipient to malware hosted elsewhere. These spear-phishing attempts represent an evolution of Iranian actors based on their social engineering tactics and narrow targeting. Although the messages still had minor grammatical and stylistic errors that would be obvious to a native speaker, the actors demonstrated stronger English-language proficiency than past intrusion sets and a deeper investment in background research prior to the attempt. The actors appropriated a real identity that would be expected to professionally interact with the subject, then offered validation through links to their biography and social media, the former of which itself was malware as well. The bait documents contained a real article relevant to their interests and topic referenced, and the message attempted to address to how it aligned with their professional research or field of employment. The referenced documents sent were malware binaries posing as legitimate files using the common right-to-left filenames tactic in order to conceal the actual file extension. All of these techniques, while common pretexting mechanisms, are a refinement compared to a tendency amongst other groups to simply continually send different forms of generic malware or phishing, in the hopes that one would eventually be successful.

## Public reports about Sima

- https://www.blackhat.com/docs/us-16/materials/us-16-Guarnieri-Iran-And-The-Soft-War-For-Internet-Dominance-wp.pdf
- https://iranthreats.github.io/

## Frequently asked questions

### Who is Sima?

Sima is a threat group thought to operate from Iran. Public reporting about it is still limited.

### Where is Sima thought to be based?

Public reporting places Sima as operating from Iran. Attribution is never certain: it rests on the tools, infrastructure and targets researchers have seen.

### How do I know if Sima is a risk to my business?

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