Threat Actor

TA577

Also known as: TA577

[TA577](https://attack.mitre.org/groups/G1037) is an initial access broker (IAB) that has distributed [QakBot](https://attack.mitre.org/software/S0650) and [Pikabot](https://attack.mitre.org/software/S1145), and was among the first observed groups distributing [Latrodectus](https://attack.mitre.org/software/S1160) in 2023.(Citation: Latrodectus APR 2024)

6
Techniques
3
Software

Properties

stix_id
intrusion-set--13ef3485-70d2-4567-b934-0e83c1eafcf1
signal_observed_at
2026-09-11T17:54:59+00:00
type
intrusion-set

MITRE ATT&CK Techniques (6)

Email Accounts

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

Embedded Payloads

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

JavaScript

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

Malicious Link

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

Spearphishing Link

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

Windows Command Shell

Adversaries may abuse the Windows command shell for execution. The Windows command shell ([cmd](https://attack.mitre.org/software/S0106)) is the prima

Software & Tools (3)

Latrodectus [malware]

[Latrodectus](https://attack.mitre.org/software/S1160) is a Windows malware downloader that has been used since at least 2023 to download and execute

Pikabot [malware]

[Pikabot](https://attack.mitre.org/software/S1145) is a backdoor used for initial access and follow-on tool deployment active since early 2023. [Pikab

QakBot [malware]

[QakBot](https://attack.mitre.org/software/S0650) 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