- First seen
- Last seen
THREAT SIGNALMedium-high
Read alongside the verdict
Indicator overview
INDICATOR PROFILEEngine detections are elevated in this report. Review the reported confidence, classification and relationships alongside them.
- SHA256
a5f192564b7956239f25453aeaf248f4316fca8933f59abb44f7b3b199cac5ff- SHA1
68b92e63f1f9739f02f90c861efc2f5d6b9b7378- MD5
b335d318200be0f577f2e71d28d10724- Filename
- a5f19256_lx_btoyeqil00sdfnq__i.exe.bin
- File type
- peexe
- MIME
- application/vnd.microsoft.portable-executable
- File size
- 1166336
- Compile time
- 2056-10-28T09:49:32Z
- PE platform
- x64 64-bit
- PE sections
- 2
Connected context
Key findings
OBSERVED EVIDENCEAnalysis takeaway
Elevated engine detections. Related indicators in this report: 8. Review the supporting evidence before taking action.
Detection signal
Malicious. Engine detections are elevated at 48%.
Confidence signal
VirusSign reports 100% confidence. Review this alongside engine detections and relationship evidence.
Analysis signals
OBSERVEDEngine detections48%
VirusSign confidence100%
Relationship context8 visible
Threat classificationmsil
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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
35 bytes
drops
Filename
4f01fd38_path.ini.bin
File type
text
MIME
text/plain
Size
35
SHA1
8cc40baf95de80fbf9031a6462d3a4c9ca8f830c
Related IPs
Network IPs associated with this indicator.
5shown
0%
US
communicates
CIDR
23.55.236.0/22
Network
23.32.0.0-23.67.255.255
First seen
2025-01-04T23:04:11Z
Last seen
2026-11-15T05:32:12Z
0%
US
communicates
CIDR
23.55.236.0/22
Network
23.32.0.0-23.67.255.255
First seen
2025-01-04T03:45:47Z
Last seen
2026-11-15T05:51:27Z
0%
US
communicates
CIDR
52.123.0.0/16
Network
52.120.0.0-52.123.255.255
First seen
2023-09-30T04:11:49Z
Last seen
2026-11-15T05:53:06Z
0%
US
communicates
CIDR
52.123.0.0/16
Network
52.120.0.0-52.123.255.255
First seen
2023-09-29T00:05:41Z
Last seen
2026-11-15T05:53:17Z
0%
US
communicates
CIDR
52.123.0.0/16
Network
52.120.0.0-52.123.255.255
First seen
2023-11-18T12:06:56Z
Last seen
2026-11-15T05:53:09Z
Related domains
Domains associated with this indicator.
2shown
0%
.microsoft
communicates
Root
cloud.microsoft
TLD
microsoft
Subdomain
atm.teams.mira.tm.svc
First seen
2024-08-26T16:41:58Z
Last seen
2026-11-15T05:55:42Z
0%
.com
communicates
Root
msn.com
TLD
com
Subdomain
assets
First seen
2023-09-29T01:39:51Z
Last seen
2026-11-15T05:55:38Z
Analysis details
Severity: criticaltrojanexepolymorphic64bitdotnetdebug-checknanocoreratobfuscated
Freshness: Aging · Last seen 42 days ago.
- Detection rate
- 48%
- Threat type
- trojan
- Family
- msil
- Confidence
- 100%
- detection
- 48 · Engine detection rate; color may also reflect VirusSign confidence.
Overview
- SHA256
a5f192564b7956239f25453aeaf248f4316fca8933f59abb44f7b3b199cac5ff- SHA1
68b92e63f1f9739f02f90c861efc2f5d6b9b7378- MD5
b335d318200be0f577f2e71d28d10724- Filename
- a5f19256_lx_btoyeqil00sdfnq__i.exe.bin
- File type
- peexe
- MIME
- application/vnd.microsoft.portable-executable
- File size
- 1166336
- Compile time
- 2056-10-28T09:49:32Z
- PE platform
- x64 64-bit
- PE sections
- 2
- TLSH
T13E45AD1B33ECCF2FC55B0639F066442EF272C2567911EBB68B60A49E3B4BB41940B576- SSDEEP
24576:fHsqYqR9I//qhk5v/BN1WEjfYZ9bziEX:UqYC9lUN1WELYZ9ziEX- First seen
- 2026-10-03T19:53:18Z
- Last seen
- 2026-10-04T02:33:08Z
Key findings
A focused interpretation of the evidence, relationships and observation history that matter most.
Analysis takeaway
Elevated engine detections. Related indicators in this report: 8. Review the supporting evidence before taking action.
Detection signal
Malicious. Engine detections are elevated at 48%.
Confidence signal
VirusSign reports 100% confidence. Review this alongside engine detections and relationship evidence.
Threat context
Classification includes type trojan and family msil.
Relationship context
8 related indicators are shown across 3 relationship group(s). Additional relationship intelligence is available through API and data access.
Observation timeline
9 timestamped observations are arranged from 2023-09-29 to 2056-10-28. These are observation or metadata times, not execution order.
Why this verdict
Review the reported detections, analysis confidence and supporting context.
Engine detections are elevated in this report. Review the reported confidence, classification and relationships alongside them.
Reported engine detection rate, not the probability that this indicator is malicious.
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 msil.
Last seen 42 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
- a5f19256_lx_btoyeqil00sdfnq__i.exe.bin
- File type
- peexe
- MIME
- application/vnd.microsoft.portable-executable
- Size
- 1166336
- Compile time
- 2056-10-28T09:49:32Z
- PE platform
- x64 64-bit
- Sections
- 2
Observed behavior
selected detailsSelected behavioral observations and reported framework mappings.
View details · 5 shown
- .NET source code contains potential unpacker
- .NET source code contains very large array initializations
- Allocates memory with a write watch (potentially for evading sandboxes)
- Altered memory protections from dynamically allocated (unbacked) memory, indicative of self-modifying shellcode or memory patching
- Attempted to open, duplicate, or impersonate an access token from dynamically allocated (unbacked) memory, indicative of credential theft or lateral movement
5 shown
View MITRE ATT&CK details · 5 shown
- T1027.002 — .NET source code contains potential unpackerTactics: TA0005
- T1497 — Allocates memory with a write watch (potentially for evading sandboxes)Tactics: TA0005 · TA0007
- T1055 — Altered memory protections from dynamically allocated (unbacked) memory, indicative of self-modifying shellcode or memory patchingTactics: TA0004 · TA0005
- T1036 · T1553.002 — Authenticode signature is invalidTactics: TA0005 · TA0112
- T1070.006 — Binary compilation timestomping detectedTactics: TA0005
5 shown
View MBC details · 5 shown
- Anti-Behavioral AnalysisObjectives: OB0001
- Anti-Static AnalysisObjectives: OB0002
- C0053.001 — Base64Objectives: OC0004
- CommunicationObjectives: OC0006
- C0046 — Create DirectoryObjectives: OC0001
5 shown
Network activity
selected detailsSelected observations and details. Additional structured data are available through API and data access.
DNS request activity2
A5+ response IPs
- 2 DNS requests observed
- 2 unique queries
- 5+ response IPs
- Query types: A
- Response codes: NOERROR
View details · 2 shown
- Query
- atm.teams.mira.tm.svc.cloud.microsoft
- Type
- A
- Answers
- 52.123.250.181, 52.123.250.147, 52.123.250.133, 52.123.250.171, 52.123.250.136, 52.123.250.160, 52.123.250.138, 52.123.250.131
- Response
- NOERROR
- Query
- assets.msn.com
- Type
- A
- Answers
- 23.55.236.131, 23.55.236.132
- Response
- NOERROR
File structure
selected detailsSelected observations and details. Additional structured data are available through API and data access.
PE header1
platform x64 64-bit2 sections
- Platform: x64 64-bit
- Sections: 2
- Compile time: 2056-10-28T09:49:32Z
View details · 1 shown
- Platform
- x64 64-bit
- Sections
- 2
- Compile time
- 2056-10-28T09:49:32Z
PE sections2
2 sections
- 2 PE sections
- Common permissions: r, rx
- 2 unique section names
View details · 2 shown
- Name
- .text
- Virtual address
- 8192
- Virtual size
- 1159848
- Raw size
- 1160192
- Permissions
- rx
- Entropy
- 7.65
- Name
- .rsrc
- Virtual address
- 1171456
- Virtual size
- 5597
- Raw size
- 5632
- Permissions
- r
- Entropy
- 5.54
Resources4
4 resources
- 4 resources
- Resource types: RT_GROUP_ICON, RT_ICON, RT_MANIFEST, RT_VERSION
View details · 4 shown
- Type
- RT_ICON
- Language
- NEUTRAL
- Type
- RT_GROUP_ICON
- Language
- NEUTRAL
- Type
- RT_VERSION
- Language
- NEUTRAL
- Type
- RT_MANIFEST
- Language
- NEUTRAL