- First seen
- Last seen
THREAT SIGNALHigh
Read alongside the verdict
Indicator overview
INDICATOR PROFILEEngine detections are elevated in this report. Review the reported confidence, classification and relationships alongside them.
- SHA256
157515b825e54a9c78d5622bf816228ab4a501dc8db4db8455e892a28b45ea1d- SHA1
a76162e0dda59922b46673bfbf5771e60b4137bc- MD5
967d850596b9d6b5bab4749ad5cd4794- Filename
- 157515b8_hpfrry1yt4lib2m.exe.bin
- File type
- peexe
- MIME
- application/vnd.microsoft.portable-executable
- File size
- 788992
- Compile time
- 2021-11-15T01:34:28Z
- PE platform
- x86 32-bit
- PE sections
- 3
Connected context
Key findings
OBSERVED EVIDENCEAnalysis takeaway
Elevated engine detections. Related indicators in this report: 5. Review the supporting evidence before taking action.
Detection signal
Malicious. Engine detections are elevated at 62%.
Confidence signal
VirusSign reports 100% confidence. Review this alongside engine detections and relationship evidence.
Analysis signals
OBSERVEDEngine detections62%
VirusSign confidence100%
Relationship context5 visible
Threat classificationagenttesla
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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.
Parent files
Files that may have delivered, loaded, or executed this indicator.
1shown
26%
critical
rar
492564 bytes
contains
Filename
738355a6_6b026c111f139f643bc27f1243687461.file.bin
Family
agenttesla
Type
trojan
File type
rar
MIME
application/vnd.rar
Dropped / child files
Files dropped, bundled, or created by the queried file.
1shown
0%
161595 bytes
drops
Filename
bdd51111_tara5f2.tmp.bin
MIME
model/stl
Size
161595
SHA1
01491fd23c4813a602d48988531ea4abbcdf7ed9
First seen
2021-11-03T15:23:57Z
Related IPs
Network IPs associated with this indicator.
2shown
0%
IS
communicates
CIDR
31.209.136.0/21
Network
31.209.137.0-31.209.137.255
First seen
2023-10-08T08:36:29Z
Last seen
2026-10-09T01:17:39Z
Related domains
Domains associated with this indicator.
1shown
5%
low
.net
communicates
Root
vivaldi.net
TLD
net
Subdomain
smtp
First seen
2023-04-10T20:57:12Z
Last seen
2026-10-09T01:18:23Z
Analysis details
Severity: criticaltrojanexedotnetdebug-checksmtp
Freshness: Historical · Last seen 1803 days ago.
- Detection rate
- 62%
- Threat type
- trojan
- Family
- agenttesla
- Confidence
- 100%
- detection
- 62 · Engine detection rate; color may also reflect VirusSign confidence.
Overview
- SHA256
157515b825e54a9c78d5622bf816228ab4a501dc8db4db8455e892a28b45ea1d- SHA1
a76162e0dda59922b46673bfbf5771e60b4137bc- MD5
967d850596b9d6b5bab4749ad5cd4794- Filename
- 157515b8_hpfrry1yt4lib2m.exe.bin
- File type
- peexe
- MIME
- application/vnd.microsoft.portable-executable
- File size
- 788992
- Compile time
- 2021-11-15T01:34:28Z
- PE platform
- x86 32-bit
- PE sections
- 3
- Import libraries
- 1
- TLSH
T193F4AE5866E49E2FD09E037CE0A80118C7F4F5116247EB6F1FD0A1B82CB77A2CD556AB- SSDEEP
24576:1SYfnSgHmWTFH4eYvCVJ0x5IV16LM/PeY5:1SLWTFH4eYeGxC6g/PX- Imphash
f34d5f2d4577ed6d9ceec516c1f5a744- First seen
- 2021-11-12T07:03:17Z
- Last seen
- 2021-12-06T17:26:01Z
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: 5. Review the supporting evidence before taking action.
Detection signal
Malicious. Engine detections are elevated at 62%.
Confidence signal
VirusSign reports 100% confidence. Review this alongside engine detections and relationship evidence.
Threat context
Classification includes type trojan and family agenttesla.
Relationship context
5 related indicators are shown across 4 relationship group(s).
Observation timeline
6 timestamped observations are arranged from 2021-11-03 to 2023-10-08. 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.
4 relationship group(s) provide pivot and infrastructure context.
Classification context: type trojan, family agenttesla.
Last seen 1803 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
- 157515b8_hpfrry1yt4lib2m.exe.bin
- File type
- peexe
- MIME
- application/vnd.microsoft.portable-executable
- Size
- 788992
- Compile time
- 2021-11-15T01:34:28Z
- PE platform
- x86 32-bit
- Entry point
- 794038
- Sections
- 3
Observed behavior
summaryBehavioral indicators observed during analysis. More details and additional structured data are available through API and data access.
Network activity
selected detailsSelected observations and details. Additional structured data are available through API and data access.
Network activity2
TCP, UDPports 53, 587
- 2 outbound connections observed
- 0 domains, 2 IPs, 0 URLs
- Common ports: 53, 587
- Protocols: TCP, UDP
View details · 2 shown
- IP
- 31.209.137.12
- Port
- 587
- Protocol
- TCP
- IP
- 192.168.0.1
- Port
- 53
- Protocol
- UDP
DNS request activity1
A1 response IPs
- 1 DNS requests observed
- 1 unique queries
- 1 response IPs
- Query types: A
- Response codes: NOERROR
View details · 1 shown
- Query
- smtp.vivaldi.net
- Type
- A
- Answers
- 31.209.137.12
- Response
- NOERROR
File structure
selected detailsSelected observations and details. Additional structured data are available through API and data access.
PE header1
platform x86 32-bit3 sections
- Platform: x86 32-bit
- Sections: 3
- Entry point: present
- Compile time: 2021-11-15T01:34:28Z
View details · 1 shown
- Platform
- x86 32-bit
- Entry point
- 794038
- Sections
- 3
- Compile time
- 2021-11-15T01:34:28Z
PE sections3
3 sections
- 3 PE sections
- Common permissions: r, rx
- 3 unique section names
View details · 3 shown
- Name
- .text
- Virtual address
- 8192
- Virtual size
- 785852
- Raw size
- 785920
- Permissions
- rx
- Entropy
- 7.11
- Name
- .rsrc
- Virtual address
- 794624
- Virtual size
- 1548
- Raw size
- 2048
- Permissions
- r
- Entropy
- 3.46
- Name
- .reloc
- Virtual address
- 802816
- Virtual size
- 12
- Raw size
- 512
- Permissions
- r
- Entropy
- 0.1
Imports1
1 DLL groups
- 1 import DLL groups
- 1 imported functions summarized
View details · 1 shown
- Library
- mscoree.dll
- Functions
- _CorExeMain
Resources2
2 resources
- 2 resources
- Resource types: RT_MANIFEST, RT_VERSION
View details · 2 shown
- Type
- RT_VERSION
- Language
- NEUTRAL
- Type
- RT_MANIFEST
- Language
- NEUTRAL