MalwareTips
Threat LensFile scan report

Is Bulbulo.zip safe?

Verdict
Malicious

Runtime analysis recorded injection, LSASS-targeting activity, destructive techniques, and defense impairment, outweighing the limited static detections from 3 of 75 engines.

A completed sandbox observation produced a malware finding and mapped activity to process injection, PowerShell execution, destructive behavior, and defense impairment. Only 3 of 75 engines detected the archive and no tier-1 engine flagged it, but the runtime evidence—especially LSASS targeting—carries substantially more weight.

Do not open or extract this archive

Quarantine the archive and avoid executing or extracting it. If it already ran, keep security protection enabled and perform an incident-response scan focused on LSASS access, PowerShell execution, process injection, and data modification.

Read the full analysis
Saved file evidenceAntivirus consensus
3of 75 flagged
Flagged 3No detection 72
Digital specimenBulbulo.zip20b18d855ec16960f0…064a95b84e051d
Size32.2 MB
Code signingNot applicable
SandboxRuntime complete
First seen2d ago
Evidence3 priority signals
1 isolated runtime environment classified the observed behavior as malicious.

Recommended next actions

01

Before opening or extracting

Do not open or extract it. Delete this archive from the device, then empty the Recycle Bin or Trash.

02

If you already opened or extracted it

Close it. If it opened links, requested credentials, or triggered unexpected behavior, disconnect from the internet and run a full device scan.

Chapter 02

Intelligence

The saved assessment, checked against the scan evidence and recorded coverage.

MT AI Engine · Verdict analysis

The reasoning behind this verdict

This section explains the evidence supporting the verdict and keeps conflicting or missing signals visible.

86%Confidence
Very high
Analyst conclusion

A completed sandbox observation produced a malware finding and mapped activity to process injection, PowerShell execution, destructive behavior, and defense impairment. Only 3 of 75 engines detected the archive and no tier-1 engine flagged it, but the runtime evidence—especially LSASS targeting—carries substantially more weight.

Where this verdict could be wrong4 caveats
  • tier1Malicious=0, and 11 tier-1 engines reported no detection; several other tier-1 engines timed out.
  • The sandbox verdict records conflict, containing both a malicious and a clean result within the single saved runtime analysis.
  • droppedChildren.hasMaliciousChild=false, although all 10 inspected child verdicts are unknown rather than established benign.
  • contactedHosts lists no malicious or suspicious hosts among three inspected entries, but it did not cover all observed domains and IPs.

These are the assessment's weak points. If you believe one applies to your file, report the verdict and we'll re-review it.

Recommended action

Quarantine the archive and avoid executing or extracting it. If it already ran, keep security protection enabled and perform an incident-response scan focused on LSASS access, PowerShell execution, process injection, and data modification.

Scan transparency

Coverage & freshness

3 of 5 complete

Complete means the check returned a usable result. It does not mean the file is safe.

  • Antivirus

    Complete

    3 of 75 engines flagged the file.

  • Sandbox

    Complete

    1 isolated runtime environment contributed observations.

  • Network

    Partial

    3 of 7 contacted hosts were cross-checked; coverage is incomplete.

  • YARA

    Complete

    2 signature or behavior rules matched.

  • External intel

    Partial

    Independent reference checks were attempted but are incomplete.

Chapter 03

Behavior

Plain-English impact first, then the observed runtime evidence.

Runtime flight recorder

Capture complete
  • 1isolated sandbox run
  • 23MITRE ATT&CK techniques
  • 14spawned processes
  • 7network contacts
  • 19filesystem & mutex artifacts

What this file does

Observed actions and their security significance

  • High concern: Injected code into another process, a technique that can conceal execution.

  • High concern: Encrypted files or data, behaviour commonly associated with ransomware.

  • High concern: Attempted to impair or bypass security controls.

  • High concern: Manipulated how the operating system loads code, which can redirect execution.

  • Moderate concern: Contained obfuscated or packed code that makes inspection harder.

  • Moderate concern: Runs hidden system commands (script or shell).

  • Moderate concern: Communicated over a common application protocol; malware can use this for command-and-control.

These are observed capabilities from an isolated analysis. A technique does not prove malicious intent on its own, and the file never ran on your device.

Threat context

How trojans work

A trojan disguises itself as something useful or harmless to trick you into running it. Once open, it does its real job in the background — anything from stealing data to opening a back door or downloading more malware.

Bottom line:The disguise is the whole trick, so a trustworthy-looking name or icon means nothing.

Recorded behavior

Attack story

Runtime observations grouped by analysis stage. Arrows organize the stages; they do not claim chronology or causality.

ObservedDerived

7 recorded facts from one runtime window. Every fact remains independently traceable in Analyst mode.

Chapter 04

Detection & Forensics

Consensus, attribution, signatures, code structure, prevalence, and identity.

Chapter 05

Safety & FAQ

Complete recovery guidance and answers for the next decision.

What to do now

This file is dangerous. Treat it as harmful and remove it.

  1. Recovery step 01

    Don't open or extract this archive. Delete this archive from the device, then empty the Recycle Bin or Trash.

  2. Recovery step 02

    If you already opened or extracted it, disconnect from the internet and start with a full antivirus scan or Microsoft Defender Offline scan. If compromise is suspected or the problem persists, use a reputable second-opinion scanner and follow incident-recovery or clean-reinstall guidance.

  3. Recovery step 03

    If any of your files were locked or renamed, do NOT pay the ransom — payment rarely restores files. Recover them from a backup instead.

  4. Recovery step 04

    Get a fresh copy from the original trusted source and verify its exact hash when possible.

Safety FAQ

Direct answers grounded in the saved verdict and evidence in this report.

8 evidence-based answers
Is Bulbulo.zip a virus?
Evidence-based answer
Yes — Bulbulo.zip is malicious. Do not open or extract it. Delete this archive from the device, then empty the Recycle Bin or Trash. 3 of 75 antivirus engines flag it. It behaves as a trojan — malware disguised as something harmless to trick you into running it. If you've already opened or extracted it, see the removal and recovery steps below.
What is Bulbulo.zip?
Evidence-based answer
Bulbulo.zip is a compressed archive, about 32.2 MB. Our analysis identifies it as malicious — a trojan — malware disguised as something harmless to trick you into running it. Because a file's name and icon can be faked, the safest way to identify it is by its cryptographic hash (below), not its filename.
How many antivirus engines detected Bulbulo.zip?
Evidence-based answer
3 of 75 antivirus engines flagged Bulbulo.zip, 3 of them as outright malicious. The raw count alone does not establish safety or danger; we also weigh which engines flagged it and corroborating behavior, identity, reputation, and rule evidence. The malicious verdict is supported by 1 isolated runtime environment that classified the observed behavior as malicious and by the wider saved evidence.
What should I do if I already opened or extracted Bulbulo.zip?
Evidence-based answer
Act quickly. 1) Disconnect the device from the internet to stop the malware communicating or spreading. 2) Run a full scan with reputable anti-malware software (such as Malwarebytes) and quarantine everything it finds. 3) Change your important passwords from a DIFFERENT, clean device — many threats log keystrokes or steal saved credentials. 4) If you bank or shop on this device, watch closely for fraud and alert your bank. 5) For a confirmed infection, the most reliable fix is to back up your personal files and reinstall the operating system for a clean start.
How do I remove Bulbulo.zip?
Evidence-based answer
To remove Bulbulo.zip: 1) restart into Safe Mode (Safe Mode with Networking if you need to download a tool) so the malware doesn't auto-start. 2) Run a full scan with reputable anti-malware software and let it quarantine or delete the detections. 3) Delete this archive from the device, then empty the Recycle Bin or Trash. 4) Check your browser extensions, startup items, and scheduled tasks for anything unfamiliar. 5) Reboot and scan again to confirm it's gone. If detections keep coming back, a clean operating-system reinstall is the most dependable cure.
What kind of malware is Bulbulo.zip?
Evidence-based answer
Bulbulo.zip is classified as a trojan — malware disguised as something harmless to trick you into running it. Knowing the family matters because it tells you the likely impact — data theft, remote control, file encryption, or unwanted ads — and guides the cleanup.
What is the SHA-256 hash of Bulbulo.zip?
Evidence-based answer
The SHA-256 hash of Bulbulo.zip is 20b18d855ec16960f0fa7144de894bc6bb9edaef53cad9c5a9064a95b84e051d, and its MD5 is 838ea847dc31097d5cb7b33bb8e0cefe. This hash is the file's unique fingerprint — two files with the same SHA-256 are identical. Use it to confirm you're looking at exactly this file (not just one with the same name) when comparing against antivirus databases or a download's published checksum.
How up to date is this analysis of Bulbulo.zip?
Evidence-based answer
This report reflects the scan run on October 1, 2026. Because a file's hash never changes, the identity of Bulbulo.zip is fixed — but antivirus coverage improves over time, so a file that looks clean today can pick up detections later (and vice-versa). If you need the latest picture, MalwareTips staff can re-run the analysis from scratch.
Chapter 06

Community

Member reviews and reports for this exact file hash.

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The raw file is processed temporarily and is not retained after processing. Its hash and report are public and permanent, so the next person who checks the same file gets an instant answer. Unknown files may be submitted to VirusTotal for analysis. If you ran this file on your computer and are worried, scan your system with an up-to-date antivirus and change critical passwords from a different device.