- 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
503b965c67a4712791ce7cbdcbecd492fcb85bdbebb777ebffb4aa74708eb3c6- SHA1
e0df457e960ac2bbd5ec3c828e42ce5377c933bd- MD5
f0935edfbf5d093c9a8659a8aafe2d67- Filename
- macho_503b965c67a4.bin
- File type
- macho
- MIME
- application/x-mach-binary
- File size
- 1807296
- Filename variants
- 2 reported
- TLSH
T16F85F1645F7A0266E49B2076DC4C4F5154B0B6A25F0CB2E6A331C24E6D375EFB3A3326- SSDEEP
24576:suJea7hEJjYqRMKwwZGvpUXhxfeZsQIkxNW2RYI+mFNpmIpY8XAB/VKkCIsGZGLb:9eGvyxDkxQ2RYjmFNpmIpYKAuk7GLQY
Connected context
Key findings
OBSERVED EVIDENCEAnalysis takeaway
High-confidence evidence. Related indicators in this report: 11. Review the supporting evidence before taking action.
Detection signal
Malicious. A limited set of engine detections is present (28%).
Confidence signal
VirusSign reports 95% confidence. Review this alongside engine detections and relationship evidence.
Analysis signals
OBSERVEDEngine detections28%
VirusSign confidence95%
Relationship context11 visible
Threat classificationamos
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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.
2shown
29%
high
macho
853968 bytes
contains
Filename
localfile~.x64
Family
amos
Type
trojan
File type
macho
MIME
application/x-mach-binary
29%
high
macho
922560 bytes
contains
Filename
localfile~.arm64
Family
amos
Type
trojan
File type
macho
MIME
application/x-mach-binary
Related IPs
Network IPs associated with this indicator.
5shown
0%
US
communicates
CIDR
17.253.26.0/23
Network
17.0.0.0-17.255.255.255
First seen
2025-06-06T06:28:49Z
Last seen
2026-11-10T14:22:04Z
US
communicates
CIDR
17.253.26.0/23
Network
17.0.0.0-17.255.255.255
First seen
2023-11-12T06:06:29Z
Last seen
2026-11-11T03:08:34Z
0%
US
communicates
CIDR
23.209.80.0/20
Network
23.192.0.0-23.223.255.255
First seen
2026-05-22T00:36:10Z
Last seen
2026-11-11T08:49:14Z
0%
US
communicates
CIDR
23.209.80.0/20
Network
23.192.0.0-23.223.255.255
First seen
2026-05-24T04:23:36Z
Last seen
2026-11-11T06:47:18Z
US
communicates
CIDR
3.128.0.0/10
Network
3.128.0.0-3.255.255.255
First seen
2024-02-08T14:14:23Z
Last seen
2026-11-11T03:08:35Z
Related domains
Domains associated with this indicator.
4shown
0%
.net
communicates
Root
akamaiedge.net
TLD
net
Subdomain
e4805.dsca
First seen
2023-09-29T04:59:22Z
Last seen
2026-11-11T08:49:18Z
0%
.net
communicates
Root
akamai.net
TLD
net
Subdomain
a1845.dscg2
First seen
2017-04-06T08:55:03Z
Last seen
2026-11-11T08:49:18Z
0%
.net
communicates
Root
akamaiedge.net
TLD
net
Subdomain
e5977.dsce9
First seen
2023-09-28T22:03:10Z
Last seen
2026-11-11T08:49:18Z
0%
.com
communicates
Root
mzstatic.com
TLD
com
Subdomain
s
First seen
2023-09-29T01:46:07Z
Last seen
2026-11-11T08:49:18Z
Analysis details
Severity: criticaltrojanmachoself-signedmulti-arch64bitarmloader
Freshness: Fresh · Last seen 6 days ago.
- Detection rate
- 28%
- Threat type
- trojan
- Family
- amos
- Confidence
- 95%
- confidence
- 95 · VirusSign confidence; engine detections are reported separately.
Overview
- SHA256
503b965c67a4712791ce7cbdcbecd492fcb85bdbebb777ebffb4aa74708eb3c6- SHA1
e0df457e960ac2bbd5ec3c828e42ce5377c933bd- MD5
f0935edfbf5d093c9a8659a8aafe2d67- Filename
- macho_503b965c67a4.bin
- File type
- macho
- MIME
- application/x-mach-binary
- File size
- 1807296
- TLSH
T16F85F1645F7A0266E49B2076DC4C4F5154B0B6A25F0CB2E6A331C24E6D375EFB3A3326- SSDEEP
24576:suJea7hEJjYqRMKwwZGvpUXhxfeZsQIkxNW2RYI+mFNpmIpY8XAB/VKkCIsGZGLb:9eGvyxDkxQ2RYjmFNpmIpYKAuk7GLQY- First seen
- 2026-11-04T06:45:12Z
- Last seen
- 2026-11-04T11:16:24Z
- Filename variants
- 2 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: 11. Review the supporting evidence before taking action.
Detection signal
Malicious. A limited set of engine detections is present (28%).
Confidence signal
VirusSign reports 95% confidence. Review this alongside engine detections and relationship evidence.
Threat context
Classification includes type trojan and family amos.
Relationship context
11 related indicators are shown across 3 relationship group(s). Additional relationship intelligence is available through API and data access.
Observation timeline
12 timestamped observations are arranged from 2017-04-06 to 2026-11-04. 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 amos.
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
- macho_503b965c67a4.bin
- File type
- macho
- MIME
- application/x-mach-binary
- Size
- 1807296
Network activity
selected detailsSelected observations and details. Additional structured data are available through API and data access.
Network activity5+
TCP, UDPports 443, 80, 53
- 5+ outbound connections observed
- 0 domains, 5+ IPs, 0 URLs
- Common ports: 443, 80, 53
- Protocols: TCP, UDP
View details · 5 shown
- IP
- 151.101.3.6
- Port
- 443
- Protocol
- UDP
- IP
- 151.101.3.6
- Port
- 443
- Protocol
- TCP
- IP
- 3.137.54.98
- Port
- 443
- Protocol
- TCP
- IP
- 23.60.79.62
- Port
- 443
- Protocol
- TCP
- IP
- 23.49.5.142
- Port
- 443
- Protocol
- TCP
5 shown
DNS request activity4
A5 response IPs
- 4 DNS requests observed
- 4 unique queries
- 5 response IPs
- Query types: A
- Response codes: NOERROR
View details · 4 shown
- Query
- s.mzstatic.com
- Type
- A
- Answers
- 17.253.7.146, 17.253.7.147
- Response
- NOERROR
- Query
- e5977.dsce9.akamaiedge.net
- Type
- A
- Answers
- 23.222.245.13
- Response
- NOERROR
- Query
- e4805.dsca.akamaiedge.net
- Query
- a1845.dscg2.akamai.net
- Type
- A
- Answers
- 23.49.5.142, 23.49.5.134
- Response
- NOERROR
Behavior details
selected detailsSelected behavioral observations and reported framework mappings.
View details · 5 shown
- Classification label
- Connects to IPs without corresponding DNS lookups
- Imports the Security framework library that provides capabilities to protect information and control access to software (e.g. certificate, key, keychain, or secure transport handling
- Mach-O contains sections with high entropy indicating compressed/encrypted content
- May try to detect the virtual machine to hinder analysis (VM artifact strings found in memory)
5 shown
View MITRE ATT&CK details · 4 shown
- T1573 — Imports the Security framework library that provides capabilities to protect information and control access to software (e.g. certificate, key, keychain, or secure transport handling)Tactics: TA0011
- T1027 — Mach-O contains sections with high entropy indicating compressed/encrypted contentTactics: TA0005
- T1036.001 · T1553.002 — Sample is code signed by an ad-hoc signatureTactics: TA0005 · TA0112
- T1071 · T1573 — Uses HTTPSTactics: TA0011