APT37 (Reaper): The Overlooked North Korean Actor

On Feb. 2, 2018, we published a blog
detailing the use of an Adobe Flash zero-day
 (CVE-2018-4878) by a suspected North Korean cyber
espionage group that we now track as APT37 (Reaper).

Our analysis of APT37’s recent activity reveals that the group’s
operations are expanding in scope and sophistication, with a toolset
that includes access to zero-day vulnerabilities and wiper malware. We
assess with high confidence that this activity is carried out on
behalf of the North Korean government given malware development
artifacts and targeting that aligns with North Korean state interests.
FireEye iSIGHT Intelligence believes that APT37 is aligned with the
activity publicly reported as Scarcruft and Group123.

Read our report,
APT37 (Reaper): The Overlooked North Korean
, to learn more about our assessment that this threat
actor is working on behalf of the North Korean government, as well as
various other details about their operations:

  • Targeting: Primarily South Korea – though also Japan, Vietnam
    and the Middle East – in various industry verticals, including
    chemicals, electronics, manufacturing, aerospace, automotive, and
  • Initial Infection Tactics: Social engineering tactics
    tailored specifically to desired targets, strategic web compromises
    typical of targeted cyber espionage operations, and the use of
    torrent file-sharing sites to distribute malware more
  • Exploited Vulnerabilities: Frequent exploitation of
    vulnerabilities in Hangul Word Processor (HWP), as well as Adobe
    Flash. The group has demonstrated access to zero-day vulnerabilities
    (CVE-2018-0802), and the ability to incorporate them into
  • Command and Control Infrastructure: Compromised servers,
    messaging platforms, and cloud service providers to avoid detection.
    The group has shown increasing sophistication by improving their
    operational security over time.
  • Malware: A diverse suite of malware for initial intrusion and
    exfiltration. Along with custom malware used for espionage purposes,
    APT37 also has access to destructive malware.

More information on this threat actor is found in our report,
APT37 (Reaper): The Overlooked North Korean
. You can also register for our upcoming webinar for additional
insights into this group.

This is a Security Bloggers Network syndicated blog post authored by Nick Harbour. Read the original post at: Threat Research Blog