MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 84c97c076d5e1d5f88d1df21b2cebfa8e1cf87af21cc1165cb090318bf4ecaad. While MalwareBazaar tries to identify whether the sample provided is malicious or not, there is no guarantee that a sample in MalwareBazaar is malicious.
Database Entry
Mirai
Vendor detections: 7
| SHA256 hash: | 84c97c076d5e1d5f88d1df21b2cebfa8e1cf87af21cc1165cb090318bf4ecaad |
|---|---|
| SHA3-384 hash: | c05d78d42ed5cedbf3992b622be24ad1d36091427d293a78647108d46ed42978f77f487427ea5cac7178659573a2eefc |
| SHA1 hash: | 1480a7aebdc9f4f87ac811e7e1f2e9617561c1c9 |
| MD5 hash: | ffb4ab54958421b05cc3e5029beef379 |
| humanhash: | five-social-november-freddie |
| File name: | x86_64 |
| Download: | download sample |
| Signature | Mirai |
| File size: | 119'276 bytes |
| First seen: | 2026-09-24 23:43:34 UTC |
| Last seen: | Never |
| File type: | elf |
| MIME type: | application/x-executable |
| ssdeep | 3072:xCyC7JCz/KEIiTjJFXe7q+dobJdJvOFlVp3xLP:xCB0z/KRijTeddoNXO3xLP |
| TLSH | T151C312FB43EE887CC92A95771005D5D374EA34FC62C2E95F4887F4BA88649512E62F28 |
| TrID | 50.1% (.) ELF Executable and Linkable format (Linux) (4022/12) 49.8% (.O) ELF Executable and Linkable format (generic) (4000/1) |
| Magika | elf |
| Reporter |  abuse_ch |
| Tags: | elf mirai UPX |
UPX packed
This file is packed with UPX. We have therefore unpacked the file. Below is furhter information about the unpacked (de-compressed) file.
| File size (compressed) : | 119'276 bytes |
|---|---|
| File size (de-compressed) : | 261'472 bytes |
| Format: | linux/amd64 |
| Unpacked file: | fa74ec466360a516385de64cd0bebca32586f41c17234b4a271ccb1538ac30f7 |
Intelligence
File Origin
# of uploads :
1
# of downloads :
54
Origin country :
DEVendor Threat Intelligence
Result
Verdict:
Malware
Maliciousness:
Behaviour
Creating a file
Opens a port
Launching a process
Deletes a file
Sets a written file as executable
Sends data to a server
Runs as daemon
Creates directories
Changes access rights for a written file
Connection attempt
Manages services
Receives data from a server
Changes the time when the file was created, accessed, or modified
Mounts file systems
Creates or modifies files in /cron to set up autorun
Substitutes an application name
Writes files to system directory
Creates or modifies files to set up autorun
Creates or modifies files in /init.d to set up autorun
Creates or modifies symbolic links in /init.d to set up autorun
Verdict:
Unknown
Threat level:
0/10
Confidence:
100%
Tags:
packed upx
Status:
terminated
Behavior Graph:
Verdict:
Suspicious
Result
Threat name:
Mirai
Detection:
malicious
Classification:
spre.troj.evad
Score:
100 / 100
Signature
Drops files in suspicious directories
Executes the "crontab" command typically for achieving persistence
Modifies the '.bashrc' or '.bash_profile' file typically for persisting actions
Multi AV Scanner detection for submitted file
Protects files from modification
Sample deletes itself
Sample is packed with UPX
Sample reads /proc/mounts (often used for finding a writable filesystem)
Sample tries to persist itself using /etc/profile
Sample tries to persist itself using cron
Sample tries to persist itself using System V runlevels
Sample tries to set files in /etc globally writable
Searches for VM related strings in files or piped streams (probably for evasion)
Writes ELF files to hidden directories
Yara detected Mirai
Behaviour
Behavior Graph:
Score:
100%
Verdict:
Malware
File Type:
ELF
Threat name:
Linux.Network.Generic
Status:
Suspicious
First seen:
2026-09-24 23:44:32 UTC
File Type:
ELF64 Little (Exe)
AV detection:
6 of 36 (16.67%)
Threat level:
3/5
Detection(s):
Suspicious file
Result
Malware family:
n/a
Score:
7/10
Tags:
credential_access defense_evasion discovery execution linux persistence privilege_escalation upx
Behaviour
Enumerates kernel/hardware configuration
Reads runtime system information
System Network Configuration Discovery
Changes its process name
Reads system network configuration
Modifies Bash startup script
Reads process memory
Creates/modifies Cron job
Creates/modifies environment variables
Enumerates active TCP sockets
Enumerates running processes
Modifies init.d
Modifies rc script
Modifies systemd
Modifies the /etc/hosts DNS resolution file
Please note that we are no longer able to provide a coverage score for Virus Total.
YARA Signatures
MalwareBazaar uses YARA rules from several public and non-public repositories, such as YARAhub and Malpedia. Those are being matched against malware samples uploaded to MalwareBazaar as well as against any suspicious process dumps they may create. Please note that only results from TLP:CLEAR rules are being displayed.
| Rule name: | ELF_IoT_DVR_Botnet_Hama_UPX |
|---|---|
| Author: | Serhii Kocherhan |
| Description: | Detects packed and unpacked ELF IoT/DVR botnet variants targeting UPX compression structures and uncompressed code |
| Rule name: | linux_generic_ipv6_catcher |
|---|---|
| Author: | @_lubiedo |
| Description: | ELF samples using IPv6 addresses |
| Rule name: | SUSP_ELF_LNX_UPX_Compressed_File |
|---|---|
| Author: | Florian Roth (Nextron Systems) |
| Description: | Detects a suspicious ELF binary with UPX compression |
| Reference: | Internal Research |
| Rule name: | TH_Generic_MassHunt_Linux_Malware_2026_CYFARE |
|---|---|
| Author: | CYFARE |
| Description: | Generic Linux malware mass-hunt rule - 2026 |
| Reference: | https://cyfare.net/ |
| Rule name: | upx_packed_elf_v1 |
|---|---|
| Author: | RandomMalware |
File information
The table below shows additional information about this malware sample such as delivery method and external references.
Web download
Delivery method
Distributed via web download
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