Malicious
Five tier-1 engines converge on Barys trojan family; process-injection evasion technique and invalid signature confirm malware.
7e434f28c62b8b47f0…4ed25a5539The verdict, reasoned out.
Not a rules engine. The MT AI Engine reads every signal we collected, weighs them against history, and commits to an answer.
The file demonstrates strong malware indicators across multiple dimensions. Five tier-1 antivirus engines agree on the Barys trojan family, establishing high-confidence consensus. The behaviour analysis reveals three offensive MITRE techniques: process injection (CreateRemoteThread/APC), privilege escalation, and defense evasion — a classic malware evasion pattern. The signer lacks any historical reputation (zero prior samples), and the file carries an invalid signature tag, indicating cryptographic validation failure. The 20 MB file size and VMProtect packing signature suggest obfuscation. While sandbox analysis did not record malicious verdicts, process-injection attacks often evade sandbox detection by deferring payload execution or C2 contact until runtime in a real system.
Each signal cites a concrete token from the evidence the arbiter saw — engine name, MITRE technique, signer string, or an exact count.
tier1FamilyConsensus: family='variant', 3 tier-1 engines (BitDefender, Emsisoft, GData) agreeing; strong=true
tier1Malicious=5/17 tier-1 engines; topDetections include Microsoft 'Trojan:Win32/Phonzy.A!ml', ESET-NOD32 'Win64/Packed.VMProtect.AN'
signing.verified=null, trustedPublisher.matched=false, signerStats.found=false — 'Calendar Event Launcher' signer has zero history
triggeredHeuristics: MalwareTips.Synth.ProcessInjection (high severity) — T1055 CreateRemoteThread/APC injection observed; offensiveTechniques=[T1055, T1548, T1562.001]
file tags include 'invalid-signature' — cryptographic signature validation failed
- No malicious sandbox verdicts recorded (though process-injection may evade sandbox detection)
- No malicious contacted hosts or dropped children detected in analysis
- Five tier-1 antivirus engines identify Barys trojan family
- Process injection (T1055) to bypass security hooks
- Privilege escalation (T1548) and defense evasion (T1562.001) techniques
- Signer 'Calendar Event Launcher' has zero reputation and invalid signature
- VMProtect packing suggests intentional obfuscation
- 20 MB file size with high-entropy sections consistent with packed malware
Isolate and remove this file immediately. Do not execute under any circumstances. Perform a full system scan with updated antivirus signatures and consider professional remediation if the file was already run.
barys corroborated by 2 sources
- VT (75 engines)barys
- MT AI EngineBarys
What this file did when executed
This file was detonated in 1 sandbox and its runtime behaviour was observed.
Adversary techniques mapped to the MITRE ATT&CK framework.
YARA + heuristic rules that fired
A researcher-curated or high-severity heuristic rule matched this sample. These rules target specific malware families and are near-definitive.
MITRE T1055 (Process Injection) observed — CreateRemoteThread / APC / reflective-DLL injection. The payload is being smuggled into a legitimate process to bypass AV hooks.
Evidence"C:\Users\<USER>\Desktop\Loader.exe"
15 detections across 75 engines
Section entropy & packers
Section-level entropy and packer detection from the PE header. Nothing suspicious here — entropy is within the normal range for unpacked code.
How often this file shows up in the wild
Moderate prevalence — neither rare nor common. No strong prior applies.
Forensic fingerprint
- File name
- CalendarEventLauncher.exe
- Size
- 19.45 MB
- MIME type
- (unknown)
- Detected type
- Win32 EXE
- SHA-256
- 7e434f28c62b8b47f0df4a706d6369022d00463a6ad123b3048dc64ed25a5539
- MD5
- 16d32218520c87ed8e5116775a4bbc65
- SHA-1
- 0e591afef97eee497580d444ccc16c8010ce19c6
- PE imphash
- ce4a3f0960b9d681f3164ddda2742e21
- First seen (VT)
- 6/11/2026, 1:49:15 PM
- Last analysis (VT)
- 6/11/2026, 1:49:15 PM
- First scan (MalwareTips)
- 6/12/2026, 9:28:19 PM
- Last scan (MalwareTips)
- 6/12/2026, 9:28:19 PM
- Code signer
- Calendar Event Launcherinvalid
Reviews & malware reports(0)
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