`188.43.33.252`

188.43.33.252 is an IP address that 6 published sources report in connection with IT Worker Fraud, Contagious Interview and Lazarus Group activity, which public reporting attributes to North Korea (DPRK). It is cited here from ReliaQuest, Sekoia.io Threat Detection & Research / Kudelski Security, Kudelski Security Research, Kudelski Security, Recorded Future and Trend Micro. The earliest of those reports is dated 2025-04-23 and the most recent 2026-10-18.

ip address IT Worker Fraud Contagious Interview Lazarus Group MATCHED IN SOURCE

First seen 2025-04-23 · last seen 2026-10-18

Network

Kind	fixed line
Network	Joint Stock Company TransTeleCom (TTK PtP)
Announced by	AS20485 Joint Stock Company TransTeleCom
Country	Russia

Looked up 2026-09-21 at ip-api.com. A subscriber line, as a person working from home ordinarily has.

Sources

…IP addresses associated with this campaign; many are geo-located in Khabarovsk, Russia: 80.237.84.12 80.237.87.21 83.234.227.33-8 188.43.33.252 188.43.136.41,115 188.43.253.77 China Unicom ISP China remains North Korea’s most critical ally, providing political support,…
Threat Spotlight: Red Flags for Red Star Hackers: Hunting for North Korean Insiders - ReliaQuest — ReliaQuest · under “Russian TTK ISP” · published 2025-05-08 · pulled 2026-09-01
…37.120.154.98 38.75.137.97 45.86.208.162 50.7.159.34 91.239.130.102 103.214.44.138 167.88.61.117 185.135.76.89 188.43.33.252 211.21.6.181 Contagious Interview (Recorded Future) Recorded Future 45.86.208.162 70.32.3.15…
Beyond Lazarus: How North Korea Organizes Its Cyber Operations — Sekoia.io Threat Detection & Research / Kudelski Security · under “Annex 2 - Overlap between fake IT workers and DPRK offensive campaigns” · published 2026-09-07 · pulled 2026-09-09
…37.120.154.98 38.75.137.97 45.86.208.162 50.7.159.34 91.239.130.102 103.214.44.138 167.88.61.117 185.135.76.89 188.43.33.252 211.211.6.181 Contagious Interview (Recorded future) https:// www.recordedfuture.com/ research/purplebravos-…
Kudelski Security Research — Kudelski Security Research · under “Annexes” · published 2025-03-05 · pulled 2026-09-10
…and, instead of being in Khabarovsk, this IP is now located in Moscow. This might indicate a shift in their infrastructure. 188.43.33.252 (Inactive) investstroytrest-gw.transtelecom.net Changed to SevDirInfr-gw.transtelecom.net and, instead of being in…
DPRK Fake IT Workers: Inside Their Evolving Network Infrastructure - Kudelski Security Research Center — Kudelski Security · under “Tracking Public-Facing IP Addresses” · published 2026-07-17 · pulled 2026-09-12
…online meeting application “CoolEx” (Source: Recorded Future) Network Intelligence Insikt Group observed the IP address 188.43.33.252 communicating with three PurpleBravo C2 servers ( Table 4 ).…
PurpleBravo’s Targeting of the IT Software Supply Chain — Recorded Future · under “Network Intelligence” · published 2026-01-21 · pulled 2026-09-12
…Russia 188.43.136.0/24 20485 KPOST-NET2 September 12, 2017 Khabarovsk, Russia 188.43.33.249 188.43.33.250 188.43.33.251 188.43.33.252 188.43.33.253 20485 (Generic network name) Undetermined Undetermined Table 1.…
Russian Infrastructure Plays Crucial Role in North Korean Cybercrime Operations — Trend Micro · under “Anonymization layers” · published 2025-04-23 · pulled 2026-09-12

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Cited by the same report: Threat Spotlight: Red Flags for Red Star Hackers: Hunting for North Korean Insiders - ReliaQuest

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