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TA459 is a China-linked cyberespionage threat actor tracked by Proofpoint, with activity dating back to at least 2013. Its targeting encompasses Russia, Belarus, Mongolia, and Central Asian countries. Documented targets include Russian telecommunications and military organizations, as well as financial analysts at global financial firms covering Russian telecommunications companies. Its operations demonstrate sustained interest in military intelligence and telecommunications-related information. TA459 uses tailored spearphishing emails, including Russian-language lures, to deliver malicious Microsoft Word attachments and links to malicious archives. It has exploited CVE-2012-0158 and CVE-2017-0199, with the latter used shortly after disclosure and patching in April 2017. Infection chains have employed HTML Applications, VBScript, and PowerShell to retrieve and execute malware. The actor also distributes self-extracting RAR archives and impersonates legitimate military and news websites to support convincing delivery lures. Its malware portfolio includes PlugX, ZeroT, NetTraveler, and PCRat/Gh0st, with historical activity also involving Saker, Netbot, and DarkStRat. ZeroT has served as a first-stage loader for PlugX and other remote access payloads. Observed tradecraft includes DLL side-loading through legitimate signed executables, in-memory payload decoding, encrypted command-and-control communications, and concealment of second-stage payloads within bitmap images using least-significant-bit steganography. Decoy documents and delayed payload execution have been used to impede sandbox analysis. PlugX configurations associated with its operations support service and registry-based persistence, process injection, UAC-bypass injection, and peer-to-peer communications. Its implants also collect infected-host information and provide remote command execution and system-management capabilities.
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Who, where, and (when attributed) which flag flies behind the operation. Pulled from open-source reporting and Mallory's analyst review.
Sectors the actor has been observed targeting.
Geographies tied to known operations.
Attributed origin per open-source reporting.
37 distinct techniques observed across reporting, grouped by tactic. Hover any cell for the evidence excerpt; click through for MITRE's full description.
9 malware families attributed to this actor across reporting.
4 additional families tracked in Mallory.
3 CVEs this actor has used in observed campaigns. 3 of them exploited in the wild.
attackers opportunistically used spear-phishing emails with a Microsoft Word attachment exploiting the recently patched CVE-2017-0199 to deploy the ZeroT Trojan... In this campaign, attackers used a Microsoft Word document called 0721.doc, which exploits CVE-2017-0199. This vulnerability was disclosed and patched days prior to this attack.
This detection identifies instances where Windows Explorer.exe spawns PowerShell or cmd.exe processes, particularly focusing on executions initiated by LNK files. This behavior is associated with the ZDI-CAN-25373 Windows shortcut zero-day vulnerability, where specially crafted LNK files are used to trigger malicious code execution through cmd.exe or powershell.exe. This technique has been actively exploited by multiple APT groups in targeted attacks through both HTTP and SMB delivery methods.
The Microsoft Word document attachments observed in this campaign utilized CVE-2012-0158 to exploit the client and implant the PlugX RAT.
89 indicators attributed to this actor: domains, IPs, hashes, and other artifacts pulled from reporting. View more in app.
20 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
Listed as one of many threat actors associated with the detection's ATT&CK-style annotations for PowerShell and DNS TXT command-and-control behavior; no specific campaign or activity is described in this reference.
Listed as an associated threat actor in detection annotations for Ghostscript exploitation; no specific campaign activity is described in this reference.
Listed as a threat actor associated with PowerShell execution behavior relevant to this detection.
Listed as a threat actor associated with the PowerShell P/Invoke process injection API chain detection and related ATT&CK techniques.
Match sector + geo + tech-stack targeting against your real footprint.
Every observed MITRE ATT&CK technique, grouped by tactic.
Families this actor is known to deploy, with IOCs and behavior.
CVEs this actor has used in known campaigns.
YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.
Domains, IPs, and hashes tied to this actor, refreshed continuously.