- 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
a5aff9204c3ebd5da9ec59ecbb77ef0dd7c479fdfdb951f8bb3cf77038fb8fc5- SHA1
cd87da979087f12606a1ab99b37f1ab9af0d49fa- MD5
15d0b0f44a40bd7fa1b7118ad81d094d- Filename
- a5aff920_434702481.bin
- File type
- peexe
- MIME
- application/vnd.microsoft.portable-executable
- File size
- 309285
- PE platform
- x64 64-bit
- PE sections
- 3
- Import libraries
- 1
Connected context
Key findings
OBSERVED EVIDENCEAnalysis takeaway
High-confidence evidence supports blocking or enrichment review for this indicator.
Detection signal
Malicious. A limited set of engine detections is present (25%).
Confidence signal
VirusSign reports 96% confidence. Review this alongside engine detections and relationship evidence.
Analysis signals
OBSERVEDEngine detections25%
VirusSign confidence96%
Threat classificationvidar
Intelligence freshnessFresh
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Saved investigations
Compare when indicators were first seen, last seen and observed. Switch to Lifecycle to connect events for the same IOC.
Commonalities
RELATIONSHIP CONSTELLATION
No observations in this view
Available evidence appears in the other investigation lenses.
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FILEDOMAINIPURL
Visible connections
Related intelligence
Pivot across connected files and infrastructure with analysis signals and supporting context.
No related intelligence is currently available for this indicator.
Analysis details
Severity: criticaltrojanexefile-corrupted64bitfile-overlayupx
Freshness: Fresh · Last seen 2 days ago.
- Detection rate
- 25%
- Threat type
- trojan
- Family
- vidar
- Confidence
- 96%
- confidence
- 96 · VirusSign confidence; engine detections are reported separately.
Overview
- SHA256
a5aff9204c3ebd5da9ec59ecbb77ef0dd7c479fdfdb951f8bb3cf77038fb8fc5- SHA1
cd87da979087f12606a1ab99b37f1ab9af0d49fa- MD5
15d0b0f44a40bd7fa1b7118ad81d094d- Filename
- a5aff920_434702481.bin
- File type
- peexe
- MIME
- application/vnd.microsoft.portable-executable
- File size
- 309285
- PE platform
- x64 64-bit
- PE sections
- 3
- Import libraries
- 1
- TLSH
T10C6423A72BA29F6ACF6EEAF4C1F57470B9920F5FC2BB0114A7DC0DDA183D4244865907- SSDEEP
6144:IWGD1VFXWo+A+9bjGDkt4w7CGV/tEpdgkqai/6o/yHbsABG0s+NBUpE:a1VFmHAQu+4wB4pdgUiSo3ABJr- Imphash
6ed4f5f04d62b18d96b26d6db7c18840- First seen
- 2026-11-11T10:02:29Z
- Last seen
- 2026-11-11T13:15:29Z
Key findings
A focused interpretation of the evidence, relationships and observation history that matter most.
Analysis takeaway
High-confidence evidence supports blocking or enrichment review for this indicator.
Detection signal
Malicious. A limited set of engine detections is present (25%).
Confidence signal
VirusSign reports 96% confidence. Review this alongside engine detections and relationship evidence.
Threat context
Classification includes type trojan and family vidar.
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.
Classification context: type trojan, family vidar.
Last seen 2 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
- a5aff920_434702481.bin
- File type
- peexe
- MIME
- application/vnd.microsoft.portable-executable
- Size
- 309285
- PE platform
- x64 64-bit
- Entry point
- 901392
- Sections
- 3
File structure
selected detailsSelected observations and details. Additional structured data are available through API and data access.
PE header1
platform x64 64-bit3 sections
- Platform: x64 64-bit
- Sections: 3
- Entry point: present
View details · 1 shown
- Platform
- x64 64-bit
- Entry point
- 901392
- Sections
- 3
PE sections3
3 sections
- 3 PE sections
- Common permissions: rwx, rw
- 3 unique section names
View details · 3 shown
- Name
- UPX0
- Virtual address
- 4096
- Virtual size
- 589824
- Raw size
- 0
- Permissions
- rwx
- Entropy
- 0.0
- Name
- UPX1
- Virtual address
- 593920
- Virtual size
- 311296
- Raw size
- 308224
- Permissions
- rwx
- Entropy
- 7.95
- Name
- UPX2
- Virtual address
- 905216
- Virtual size
- 4096
- Raw size
- 512
- Permissions
- rw
- Entropy
- 1.37
Imports1
1 DLL groups
- 1 import DLL groups
- 4 imported functions summarized
View details · 1 shown
- Library
- KERNEL32.DLL
- Functions
- ExitProcess, GetProcAddress, LoadLibraryA, VirtualProtect
Behavior details
selected detailsSelected behavioral observations and reported framework mappings.
View details · 1 shown
- packed with UPX
View MITRE ATT&CK details · 1 shown
- T1027.002 — packed with UPXTactics: TA0005
View MBC details · 1 shown
- F0001.008 — UPXObjectives: OB0001 · OB0002 · OB0006