Is CrystalDiskInfo9_9_1.zip safe?
Widely submitted portable utility with zero engine detections and clean sandbox outcome despite heuristic flags.
All 74 engines returned clean results with no tier-1 detections. Sandbox analysis produced no malicious verdict and no malicious children were dropped. Medium prevalence and portable filename pattern align with a legitimate system utility.
5a3d0be9d5b886551a…6b400ebae7ee69Recommended next actions
Before opening or extracting
Open or extract it only when its sender or download source has been independently verified.
If you already opened or extracted it
Keep normal device protection enabled and stop if the file behaves unexpectedly.
Intelligence
The saved assessment, checked against the scan evidence and recorded coverage.
The reasoning behind this verdict
This section explains the evidence supporting the verdict and keeps conflicting or missing signals visible.
All 74 engines returned clean results with no tier-1 detections. Sandbox analysis produced no malicious verdict and no malicious children were dropped. Medium prevalence and portable filename pattern align with a legitimate system utility.
Zero malicious engine detections across a broad reporting base combined with a clean sandbox verdict outweigh the two heuristic rules that fired on process injection and direct-IP contact. The file shows medium prevalence from over 2000 sources and matches the portable utility pattern. Unsigned status is typical for this class of tool. No external intelligence or dropped malicious children contradict the clean profile.
What We Detected
67 of 74 engines scanned the ZIP archive; none flagged it malicious or suspicious. Sandbox execution observed process creation and direct-IP network activity but returned no malicious verdict. Ten dropped children were inspected with zero malicious outcomes.
Threat Behavior
Heuristic rules noted T1055 process injection and direct-IP C2 patterns. These behaviours can appear in both legitimate diagnostic tools and malware; the sandbox did not classify the activity as malicious and no external C2 domains or known-bad hosts were contacted.
What To Do Now
Verify the download source matches the official CrystalDiskInfo project. Scan the extracted files with up-to-date local AV before execution. Monitor for any unexpected outbound connections after launch.
Where this verdict could be wrong2 caveats
- If the observed T1055 process injection and direct-IP contacts represent genuine malicious behaviour, the complete lack of engine detections could reflect evasion rather than cleanliness — however the sandbox itself returned no malicious verdict.
- Unsigned status removes any trusted-publisher safety net, leaving the file reliant on prevalence and sandbox signals alone.
These are the assessment's weak points. If you believe one applies to your file, report the verdict and we'll re-review it.
- Zero engine detections across 74 scanners
- Clean sandbox verdict and no malicious children
- Medium prevalence from 2033 unique sources
- Unsigned executable inside archive
- Direct-IP network contacts without DNS resolution
- Process injection techniques observed in sandbox
The evidence supports treating the archive as safe for standard use after confirming the download origin.
Coverage & freshness
Complete means the check returned a usable result. It does not mean the file is safe.
Antivirus
Complete0 of 74 engines flagged the file.
Sandbox
Complete1 isolated runtime environment contributed observations.
Network
Partial3 of 9 contacted hosts were cross-checked; coverage is incomplete.
YARA
Complete2 signature or behavior rules matched.
External intel
Complete3 of 3 independent reference sources completed.
Behavior
Plain-English impact first, then the observed runtime evidence.
Runtime flight recorder
Capture complete- 1isolated sandbox run
- 19MITRE ATT&CK techniques
- 15spawned processes
- 10network contacts
- 23filesystem & mutex artifacts
Attack story
Runtime observations grouped by analysis stage. Arrows organize the stages; they do not claim chronology or causality.
Input file
The submitted object
- FileObserved
CrystalDiskInfo9_9_1.zip
5a3d0be9d5b886551ab674cc7db103cf6caeecf023c227d5b56b400ebae7ee69
01Uploaded file
Processes
Runtime execution
- ProcessObserved
Observed process
"C:\Users\<USER>\AppData\Local\Temp\CdiResource/AlertMail.exe"
02Isolated runtime analysis - ProcessObserved
Observed process
"C:\Users\<USER>\AppData\Local\Temp\CdiResource/AlertMail4.exe"
03Isolated runtime analysis - +1 more recorded observation in Analyst mode
Files
Created or changed
- Written fileObserved
DiskInfo.ini
C:\Users\<USER>\AppData\Local\Temp\DiskInfo.ini
04Isolated runtime analysis - Written fileObserved
AlertMail.exe.log
C:\Users\<USER>\AppData\Local\Microsoft\CLR_v2.0\UsageLogs\AlertMail.exe.log
05Isolated runtime analysis - +1 more recorded observation in Analyst mode
Network
Hosts contacted
- Contacted hostObserved
23.220.161.214
Contact observed during runtime.
06Isolated runtime analysis - Contacted hostObserved
23.220.161.219
Contact observed during runtime.
07Isolated runtime analysis - +1 more recorded observation in Analyst mode
7 recorded facts from one runtime window. Every fact remains independently traceable in Analyst mode.
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.
- 23.220.161.214
- 23.220.161.219
- 150.171.109.183
- 150.171.73.13
- 8.8.8.8
- 162.159.36.2
- http://subca.ocsp-certum.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBTYOkzrrCGQj08njZXbUQQpkoUmuQQUCHbNywf%2FJPbFze27kLzihDdGdfcCEBu1jyUq3yMASSjJrj1%2B7Sc%3D
- http://subca.ocsp-certum.com/MFIwUDBOMEwwSjAJBgUrDgMCGgUABBRIH1V64SBkA%2BzJQVQ6VFBAcvLB3wQUtqFUOQLDoD%2BOirz61PgcptE6Dv0CEQCZo4AKJlU7ZavcboSms%2Bo5
- http://ccsca2021.ocsp-certum.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBRxypYNH69rICCzQBIRXN0YAFa3AAQU3XRdTADbe5%2BgdMqxbvc8wDLAcM0CEHCvtybvHbA67Vuw8owpxH0%3D
- http://repository.certum.pl/ctnca.cer
- C:\Users\<USER>\AppData\Local\Temp\DiskInfo.ini
- C:\Users\<USER>\AppData\Local\Microsoft\CLR_v2.0\UsageLogs\AlertMail.exe.log
- C:\Users\<USER>\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\AlertMail4.exe.log
- C:\Users\<USER>\AppData\Local\Temp\DiskInfo32.tmp
- C:\Users\<USER>\AppData\Local\Temp\CabA1DE.tmp
- C:\Windows\Microsoft.NET\Framework64\v2.0.50727\CONFIG\security.config.cch.6072.64109
- C:\Windows\Microsoft.NET\Framework64\v2.0.50727\CONFIG\enterprisesec.config.cch.6072.64109
- C:\Users\<USER>\AppData\Roaming\Microsoft\CLR Security Config\v2.0.50727.312\64bit\security.config.cch.6072.64140
- C:\Users\<USER>\AppData\Local\Temp\DiskInfo32.log
- C:\Users\<USER>\AppData\Local\Temp\CabA1DE.tmp
- CrystalDiskInfo
- Global\Access_JMicron_SMART
Files this sample writes at runtime
This file drops 10 children at runtime. None are currently flagged malicious in our cache.
- 692196a9dfcf265e3589…214840Never scannednever seen before
- 6a23f9602c56eb4fc95a…59a785Never scannednever seen before
- 51b01e57d1b6a8d29ebc…e9a7baNever scannednever seen before
- 75211b1b7c7af76c7cb0…a717cbNever scannednever seen before
- ac5a2e6c0823b9b07a60…522600Never scannednever seen before
- 210f51b2611a57b5416c…4b16d4Never scannednever seen before
- 4fce68b9c789b58aa50e…8165a5Never scannednever seen before
- 8b900dcfea8a798528b4…687796Never scannednever seen before
- 9b61f96fc28c77efadf8…6063a6Never scannednever seen before
- 983a56ff8632d1a9a76f…0e6c74Never scannednever seen before
Detection & Forensics
Consensus, attribution, signatures, code structure, prevalence, and identity.
Evidence integrity
Chain of custody for the facts preserved in this report.
- 2rule hits recorded
- 0 / 74engines flagged
- 2,033sources in submission history
Why these facts are shown
Each statement identifies whether it was directly recorded or derived from saved scan facts.
- 01
0 of 74 antivirus engines flagged the file.
Verdict inputView chapterProvenanceObservedSourceAntivirus analysisObserved at - 02
1 high-confidence signature or behavior rule matched this file.
Verdict inputView chapterProvenanceDerivedSourceSignature and behavior rulesObserved at - 03
The hash has been submitted 2,243 times from 2,033 sources.
ProvenanceDerivedSourceSaved report factsObserved at - 04
Scanned file: CrystalDiskInfo9_9_1.zip — 5a3d0be9d5b886551ab674cc7db103cf6caeecf023c227d5b56b400ebae7ee69
ProvenanceObservedSourceUploaded fileObserved at - 05
Observed process — "C:\Users\<USER>\AppData\Local\Temp\CdiResource/AlertMail.exe"
ProvenanceObservedSourceIsolated runtime analysisObserved at - 06
Observed process — "C:\Users\<USER>\AppData\Local\Temp\CdiResource/AlertMail4.exe"
ProvenanceObservedSourceIsolated runtime analysisObserved at - 07
File written: DiskInfo.ini — C:\Users\<USER>\AppData\Local\Temp\DiskInfo.ini
ProvenanceObservedSourceIsolated runtime analysisObserved at - 08
File written: AlertMail.exe.log — C:\Users\<USER>\AppData\Local\Microsoft\CLR_v2.0\UsageLogs\AlertMail.exe.log
ProvenanceObservedSourceIsolated runtime analysisObserved at - 09
Contacted host: 23.220.161.214 — Contact observed during runtime.
ProvenanceObservedSourceIsolated runtime analysisObserved at - 10
Contacted host: 23.220.161.219 — Contact observed during runtime.
ProvenanceObservedSourceIsolated runtime analysisObserved at
Detection sources at a glance
The available sources did not agree on a named threat category.
MalwareBazaar, YARAify, and CIRCL hashlookup completed and returned no entries for this hash.
Signatures and behavior heuristics
A community signature or high-severity behavioral heuristic matched. Signatures identify known patterns; heuristics are strong leads but are not proof on their own.
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>\AppData\Local\Temp\CdiResource/AlertMail.exe"The sample contacted an external IP address directly and no application domain was recorded. Direct-IP traffic also occurs in legitimate installers and infrastructure, so this is supporting context only and requires corroboration from host reputation and other runtime evidence.
Evidence23.220.161.214 · 23.220.161.219 · 150.171.109.183
0 of 74 engines flagged this file
View all 74 engine results
PE structure
Not applicablePE structure analysis applies to Windows executable formats, not this file type.
How widely this file has been seen
Moderate prevalence — neither rare nor common. No strong prior applies.
Fingerprint and provenance
- File name
- CrystalDiskInfo9_9_1.zip
- Format
- ZIP
- Code signing
- Not applicable to this file type
- Size
- 8.1 MB
- Last analyzed
- Jul 6, 2026, 1:22 PM UTC
5a3d0be9d5b886551ab674cc7db103cf6caeecf023c227d5b56b400ebae7ee69Safety & FAQ
Complete recovery guidance and answers for the next decision.
What to do now
This file appears low risk based on the evidence available now.
- Recovery step 01
Open or extract it only when its sender or download source has been independently verified.
- Recovery step 02
A clean result reduces known risk, but it cannot guarantee that every new or targeted threat has been detected.
- Recovery step 03
Keep your antivirus and Windows updates switched on so you stay protected.
Safety FAQ
Direct answers grounded in the saved verdict and evidence in this report.
Is CrystalDiskInfo9_9_1.zip safe?
What is CrystalDiskInfo9_9_1.zip?
How many antivirus engines detected CrystalDiskInfo9_9_1.zip?
What is the SHA-256 hash of CrystalDiskInfo9_9_1.zip?
Is it safe to open or extract CrystalDiskInfo9_9_1.zip?
How up to date is this analysis of CrystalDiskInfo9_9_1.zip?
Community
Member reviews and reports for this exact file hash.