Moonstone Sleet retrieved credentials from LSASS memory.2
group
Moonstone Sleet G1036
- Created
- 26 August 2024
- Last modified
- 31 July 2026
- Aliases
- Moonstone Sleet · Storm-1789
Moonstone Sleet is a North Korean-linked threat actor executing both financially motivated attacks and espionage operations. The group previously overlapped significantly with another North Korean-linked entity, Lazarus Group, but has differentiated its tradecraft since 2023. Moonstone Sleet is notable for creating fake companies and personas to interact with victim entities, as well as developing unique malware such as a variant delivered via a fully functioning game.[1]
30
Techniques66th pct
11
Tactics66th pct
1
Tool or malwareBottom 23%
0
CampaignsNone recorded
Enterprise ATT&CK only. Any Mobile or ICS rows on the same ATT&CK page are not carried.
MITRE reference G1036
Moonstone Sleet has gathered information on victim network configuration.3
Moonstone Sleet delivers encrypted payloads in pieces that are then combined together to form a new portable executable (PE) file during installation.4
Moonstone Sleet embedded payloads in trojanized software for follow-on execution.5
Moonstone Sleet has used encrypted payloads within files for follow-on execution and defense evasion.6
Moonstone Sleet deployed various malware such as YouieLoader that can perform system user discovery actions.7
Standing G1036
Reach is how much of ATT&CK this group touches. Coverage is how well defended each thing it does is, as a median per technique rather than a total — a total would just restate the reach. Each figure is ranked against all 176 ATT&CK groups only where that population actually spreads. Where most of the population shares one value, a percentile would rank the tie instead of the entity, so the raw value is shown and no rank is claimed.
Reach
Techniques3066th pct
66th percentile · 66% of 176 ATT&CK groups have this many Enterprise techniques or fewer.
Tactics1166th pct
66th percentile · 66% of 176 ATT&CK groups have this many tactics spanned or fewer.
Tool or malware1Bottom 23%
23rd percentile · 77% of 176 ATT&CK groups have more tools and malware.
Campaigns089% tie · 4 values
89% of the population shares a single value across only 4 distinct values, so a percentile here would rank the tie, not the entity.
Coverage
Rules / technique16med44th pct
44th percentile · 56% of 176 ATT&CK groups have more detection rules per technique.
Tests / technique2.5med
Detection coverage G1036
876 distinct rules cover the 30 techniques recorded for this group. The 922 technique-to-rule mappings resolve to 876 distinct rules, because one rule can cover several techniques. 641 Sigma · 235 Splunk.
23 covered by at least one rule7 with no coverage876 distinct rules in total
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