- 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
ef1c40e8bca817a3849062b064f6bb64b5ae146831ac64771e8df56111dfe2ec- SHA1
f9694472dd221a9b9ecf5c511be76f4e08a9302f- MD5
fdc1e3f4329b248dc89b700eb4066cc8- Filename
- stage1_ef1c40e8bca8.zsh
- File type
- shell
- MIME
- text/plain
- File size
- 2896
- Filename variants
- 3 reported
- TLSH
T17551E9B8E40C50B6E0D75B5B9849F83C56DD33D98EF8B14CB94AEA0C14BEAA0D45E80D- SSDEEP
48:WOFBVQ/hx27Xk7Ayq7FWDK+rfsRewk1pNi+BJctOG+UQgUeN4kBTmWOhCtdZRxOI:Fy/720XqhWDK+rfsUX1pNvJctOG+UXBR
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 (24%).
Confidence signal
VirusSign reports 93% confidence. Review this alongside engine detections and relationship evidence.
Analysis signals
OBSERVEDEngine detections24%
VirusSign confidence93%
Relationship context7 visible
Threat classificationinfostl
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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.
1shown
0%
text
11 bytes
drops
Filename
last_check
File type
text
MIME
text/plain
Size
11
SHA1
1bd1f53d6d9caf1367fc829df9bcbb4855f0452f
Related IPs
Network IPs associated with this indicator.
5shown
0%
GB
communicates
CIDR
185.125.188.0/22
Network
185.125.188.0-185.125.191.255
First seen
2023-12-12T04:33:57Z
Last seen
2026-11-13T16:41:17Z
0%
GB
communicates
CIDR
185.125.188.0/22
Network
185.125.188.0-185.125.191.255
First seen
2023-10-01T07:36:54Z
Last seen
2026-11-13T16:41:17Z
0%
GB
communicates
CIDR
185.125.188.0/22
Network
185.125.188.0-185.125.191.255
First seen
2023-09-30T18:03:12Z
Last seen
2026-11-13T16:41:17Z
0%
GB
communicates
CIDR
185.125.188.0/22
Network
185.125.188.0-185.125.191.255
First seen
2023-09-30T18:03:12Z
Last seen
2026-11-13T16:41:17Z
0%
GB
communicates
CIDR
185.125.188.0/22
Network
185.125.188.0-185.125.191.255
First seen
2024-01-05T14:40:30Z
Last seen
2026-11-13T16:41:17Z
Related domains
Domains associated with this indicator.
1shown
0%
.io
communicates
Root
snapcraft.io
TLD
io
Subdomain
api
First seen
2023-10-01T01:10:27Z
Last seen
2026-11-13T16:41:21Z
Analysis details
Severity: hightrojanshellself-deletedropperloadermacos
Freshness: Fresh · Last seen 6 days ago.
- Detection rate
- 24%
- Threat type
- trojan
- Family
- infostl
- Confidence
- 93%
- confidence
- 93 · VirusSign confidence; engine detections are reported separately.
Overview
- SHA256
ef1c40e8bca817a3849062b064f6bb64b5ae146831ac64771e8df56111dfe2ec- SHA1
f9694472dd221a9b9ecf5c511be76f4e08a9302f- MD5
fdc1e3f4329b248dc89b700eb4066cc8- Filename
- stage1_ef1c40e8bca8.zsh
- File type
- shell
- MIME
- text/plain
- File size
- 2896
- TLSH
T17551E9B8E40C50B6E0D75B5B9849F83C56DD33D98EF8B14CB94AEA0C14BEAA0D45E80D- SSDEEP
48:WOFBVQ/hx27Xk7Ayq7FWDK+rfsRewk1pNi+BJctOG+UQgUeN4kBTmWOhCtdZRxOI:Fy/720XqhWDK+rfsUX1pNvJctOG+UXBR- First seen
- 2026-11-06T17:08:24Z
- Last seen
- 2026-11-06T21:01:00Z
- Filename variants
- 3 reported
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 (24%).
Confidence signal
VirusSign reports 93% confidence. Review this alongside engine detections and relationship evidence.
Threat context
Classification includes type trojan and family infostl.
Relationship context
7 related indicators are shown across 3 relationship group(s). Additional relationship intelligence is available through API and data access.
Observation timeline
8 timestamped observations are arranged from 2023-09-30 to 2026-11-06. 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 infostl.
Last seen 6 days ago.
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
- stage1_ef1c40e8bca8.zsh
- File type
- shell
- MIME
- text/plain
- Size
- 2896
Observed behavior
selected detailsSelected behavioral observations and reported framework mappings.
View details · 5 shown
- Classification label
- Deletes files from disk
- Drops files onto disk
- Executes commands using a shell command-line interpreter
- Executes the "mkdir" command used to create folders
5 shown
View MITRE ATT&CK details · 3 shown
View MBC details · 5 shown
- CommunicationObjectives: OC0006
- Defense EvasionObjectives: OB0006
- C0047 — Delete FileObjectives: OC0001
- File SystemObjectives: OC0001
- C0002 — HTTP CommunicationObjectives: OC0006
5 shown
Network activity
selected detailsSelected observations and details. Additional structured data are available through API and data access.
Network activity2
TCPports 443
- 2 outbound connections observed
- 0 domains, 2 IPs, 0 URLs
- Common ports: 443
- Protocols: TCP
View details · 2 shown
- IP
- 185.125.188.60
- Port
- 443
- Protocol
- TCP
- IP
- 185.125.188.54
- Port
- 443
- Protocol
- TCP
DNS request activity1
A5+ response IPs
- 1 DNS requests observed
- 1 unique queries
- 5+ response IPs
- Query types: A
- Response codes: NOERROR
View details · 1 shown
- Query
- api.snapcraft.io
- Type
- A
- Answers
- 185.125.188.57, 185.125.188.54, 185.125.188.60, 185.125.188.55, 185.125.188.58, 185.125.188.59
- Response
- NOERROR