Threat Actor

TA577

Also known as: TA577

TA577 is an initial access broker (IAB) that has distributed QakBot and Pikabot, and was among the first observed groups distributing Latrodectus in 2023.

6
Techniques
3
Software
0
indicators on this record

Properties

Last source
MITRE ATT&CK
STIX ID
intrusion-set--13ef3485-70d2-4567-b934-0e83c1eafcf1
In Signal since
initial import (Sep 2026)
Retrieved at
2026-11-01T12:34:03+00:00
Type
intrusion-set

MITRE ATT&CK Techniques (6)

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Email Accounts (T1586.002)

Adversaries may compromise email accounts that can be used during targeting. Adversaries can use compromised email accounts to further their operation

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Embedded Payloads (T1027.009)

Adversaries may embed payloads within other files to conceal malicious content from defenses. Otherwise seemingly benign files (such as scripts and ex

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JavaScript (T1059.007)

Adversaries may abuse various implementations of JavaScript for execution. JavaScript (JS) is a platform-independent scripting language (compiled just

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Malicious Link (T1204.001)

An adversary may rely upon a user clicking a malicious link in order to gain execution. Users may be subjected to social engineering to get them to cl

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Spearphishing Link (T1566.002)

Adversaries may send spearphishing emails with a malicious link in an attempt to gain access to victim systems. Spearphishing with a link is a specifi

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Windows Command Shell (T1059.003)

Adversaries may abuse the Windows command shell for execution. The Windows command shell (cmd) is the prima

Software & Tools (3)

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Latrodectus [malware]

Latrodectus is a Windows malware downloader that has been used since at least 2023 to download and execute

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Pikabot [malware]

Pikabot is a backdoor used for initial access and follow-on tool deployment active since early 2023. [Pikab

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QakBot [malware]

QakBot is a modular banking trojan that has been used primarily by financially-motivated actors since at le

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TA577 — Threat Actor Profile — Ninja Signal | Ninja Signal