- First seen
- Last seen
THREAT SIGNALMedium
Read alongside the verdict
Indicator overview
INDICATOR PROFILEVirusSign reports high analysis confidence alongside a low or unreported engine detection rate. These are different measures; review the supporting classification and relationships.
- SHA256
4efe003a54db8ffbaef6065270eacb0a59479ccc86941517ac7a33344e97bc1d- SHA1
eb582cce86e184f77e71a53bb7946061cbc9268f- MD5
901810cae2b6614c835d1ef2cd6b131c- Filename
- 4efe003a_ms0.msi.bin
- File type
- msi
- MIME
- application/x-msi
- File size
- 10860032
- TLSH
T10EB6D021B2649464C9BB8072DB2F869BCB71BC405F10DB4B1164B7AA1F33B931AEF745- SSDEEP
196608:hSVNuTTj24Af3BfxDNedxs4eBltVW3JOAC09U7:hSMTjv8/Sxs4eBM609U7
Connected context
Key findings
OBSERVED EVIDENCEAnalysis takeaway
High-confidence evidence. Related indicators in this report: 7. Review the supporting evidence before taking action.
Detection signal
Malicious. A limited set of engine detections is present (21%).
Confidence signal
VirusSign reports 92% confidence. Review this alongside engine detections and relationship evidence.
Analysis signals
OBSERVEDEngine detections21%
VirusSign confidence92%
Relationship context7 visible
Threat classificationyogi
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Graph filters
Saved investigations
Compare when indicators were first seen, last seen and observed. Switch to Lifecycle to connect events for the same IOC.
Review approximate infrastructure locations and geographic concentration.
Commonalities
RELATIONSHIP CONSTELLATION
No observations in this view
Available evidence appears in the other investigation lenses.
SELECT A NODE TO EXPLORE
FILEDOMAINIPURL
Visible connections
Related intelligence
Pivot across connected files and infrastructure with analysis signals and supporting context.
Dropped / child files
Files dropped, bundled, or created by the queried file.
4shown
26%
high
pedll
10769408 bytes
contains
Filename
52a42296_binary.actiondll.bin
Family
yogi
Type
trojan
File type
pedll
MIME
application/vnd.microsoft.portable-executable
0%
244 bytes
contains
Filename
c580224a_sleestak_payload_1.bin
MIME
application/octet-stream
Size
244
SHA1
c9e853152cbe0348807aa3bc876049431d0a8b4b
First seen
2026-06-25T14:07:58Z
0%
24 bytes
contains
Filename
21291ffb_sleestak_payload_1.bin
MIME
application/octet-stream
Size
24
SHA1
f345c6d32e6c45b46d326179f3448813b3a17d74
First seen
2026-06-23T12:04:15Z
0%
14 bytes
contains
Filename
40e3bcfc__media.bin
MIME
application/octet-stream
Size
14
SHA1
e7c6f36ae6bc462d572216c3a96d146df2506fd1
First seen
2013-07-08T10:59:44Z
Related IPs
Network IPs associated with this indicator.
2shown
0%
US
communicates
CIDR
23.53.120.0/21
Network
23.32.0.0-23.67.255.255
First seen
2023-09-28T22:12:25Z
Last seen
2026-11-14T02:16:36Z
0%
US
communicates
CIDR
23.53.120.0/21
Network
23.32.0.0-23.67.255.255
First seen
2023-10-12T10:06:36Z
Last seen
2026-11-14T02:16:49Z
Related domains
Domains associated with this indicator.
1shown
0%
.com
communicates
Root
msn.com
TLD
com
Subdomain
assets
First seen
2023-09-29T01:39:51Z
Last seen
2026-11-14T02:34:05Z
Analysis details
Severity: hightrojanmsipersistenceobfuscatedusb-check
Freshness: Fresh · Last seen today.
- Detection rate
- 21%
- Threat type
- trojan
- Family
- yogi
- Confidence
- 92%
- confidence
- 92 · VirusSign confidence; engine detections are reported separately.
Overview
- SHA256
4efe003a54db8ffbaef6065270eacb0a59479ccc86941517ac7a33344e97bc1d- SHA1
eb582cce86e184f77e71a53bb7946061cbc9268f- MD5
901810cae2b6614c835d1ef2cd6b131c- Filename
- 4efe003a_ms0.msi.bin
- File type
- msi
- MIME
- application/x-msi
- File size
- 10860032
- TLSH
T10EB6D021B2649464C9BB8072DB2F869BCB71BC405F10DB4B1164B7AA1F33B931AEF745- SSDEEP
196608:hSVNuTTj24Af3BfxDNedxs4eBltVW3JOAC09U7:hSMTjv8/Sxs4eBM609U7- First seen
- 2026-11-13T08:31:11Z
- Last seen
- 2026-11-13T11:36:29Z
Key findings
A focused interpretation of the evidence, relationships and observation history that matter most.
Analysis takeaway
High-confidence evidence. Related indicators in this report: 7. Review the supporting evidence before taking action.
Detection signal
Malicious. A limited set of engine detections is present (21%).
Confidence signal
VirusSign reports 92% confidence. Review this alongside engine detections and relationship evidence.
Threat context
Classification includes type trojan and family yogi.
Relationship context
7 related indicators are shown across 3 relationship group(s).
Observation timeline
8 timestamped observations are arranged from 2013-07-08 to 2026-11-13. These are observation or metadata times, not execution order.
Why this verdict
Review the reported detections, analysis confidence and supporting context.
VirusSign reports high analysis confidence alongside a low or unreported engine detection rate. These are different measures; review the supporting classification and relationships.
Reported engine detection rate. A low rate alone does not establish that the indicator is benign.
VirusSign analysis confidence; separate from detection rate and actor-association confidence.
3 relationship group(s) provide pivot and infrastructure context.
Classification context: type trojan, family yogi.
Last seen today.
Signals reflect the intelligence returned in this report. Missing values mean not reported, not zero. Related indicators are investigation leads, not proof of shared malicious activity.
File profile
summarySelected file intelligence summary.
- Filename
- 4efe003a_ms0.msi.bin
- File type
- msi
- MIME
- application/x-msi
- Size
- 10860032
Observed behavior
selected detailsSelected behavioral observations and reported framework mappings.
View details · 5 shown
- A DLL was loaded from a suspicious directory
- Appears to use command line obfuscation
- Attempts to make a network connection via suspicious process
- Binary contains paths to debug symbols
- Binary file triggered YARA rule
5 shown
View MITRE ATT&CK details · 5 shown
- T1574 — A DLL was loaded from a suspicious directoryTactics: TA0002 · TA0005
- T1027 · T1059 — Appears to use command line obfuscationTactics: TA0002 · TA0005
- T1071 — Binary file triggered YARA ruleTactics: TA0011
- T1082 — Checks available memoryTactics: TA0007
- T1091 · T1120 — Checks for available system drives (often done to infect USB drives)Tactics: TA0001 · TA0007 · TA0008
5 shown
View MBC details · 5 shown
- Anti-Static AnalysisObjectives: OB0002
- E1059 — Command and Scripting InterpreterObjectives: OB0009
- CommunicationObjectives: OC0006
- C0016 — Create FileObjectives: OC0001
- Defense EvasionObjectives: OB0006
5 shown
Network activity
selected detailsSelected observations and details. Additional structured data are available through API and data access.
DNS request activity1
A2 response IPs
- 1 DNS requests observed
- 1 unique queries
- 2 response IPs
- Query types: A
- Response codes: NOERROR
View details · 1 shown
- Query
- assets.msn.com
- Type
- A
- Answers
- 23.53.122.69, 23.53.122.73
- Response
- NOERROR