MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 f52f6ec77dfef9681896e23e3ef21c77573832d81940e42c397acc7d3e20c620. 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: 14
| SHA256 hash: | f52f6ec77dfef9681896e23e3ef21c77573832d81940e42c397acc7d3e20c620 |
|---|---|
| SHA3-384 hash: | 74ef8bab19612221fde1529c9f23f2730d7dd679fc3b0c2a59bcbdb1b5e1053a56ad652bb57138ea6bac6f377ac9cd2e |
| SHA1 hash: | 0684fbb7f6d5bc91e2bb1b09335edaed3b61483f |
| MD5 hash: | cecead4be1cdd1f60e9430321ca0be74 |
| humanhash: | idaho-william-berlin-artist |
| File name: | ub8ehJSePAfc9FYqZIT6.i686 |
| Download: | download sample |
| Signature | Mirai |
| File size: | 57'844 bytes |
| First seen: | 2026-01-08 21:07:13 UTC |
| Last seen: | 2026-01-09 01:41:21 UTC |
| File type: | elf |
| MIME type: | application/x-executable |
| ssdeep | 1536:K8zEbIkIhbjLbGZ+j/pA1/71t6KaR2NqBpsb/I/Fw4nouy8Gye:bYK/66pAhmP2k7e/IawoutK |
| TLSH | T1414302669270E789E89F057CEF9A76CD4E2CCD80B56318AA0D9071432CD83DB267C7D5 |
| 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) : | 57'844 bytes |
|---|---|
| File size (de-compressed) : | 146'692 bytes |
| Format: | linux/i386 |
| Unpacked file: | 58897171dc5b993e6e8918d64fd7483de5c29648c27e7466b51bfaa7af09970f |
Intelligence
File Origin
# of uploads :
2
# of downloads :
54
Origin country :
DEVendor Threat Intelligence
Detection(s):
Result
Verdict:
Malware
Maliciousness:
Behaviour
Connection attempt
Changes access rights for a written file
Sets a written file as executable
Changes the time when the file was created, accessed, or modified
Creating a file in the %temp% directory
Manages services
Creating a file
Locks files
Launching a process
Creates or modifies files in /cron to set up autorun
Substitutes an application name
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:
masquerade packed upx
Verdict:
Malicious
File Type:
elf.32.le
First seen:
2026-01-08T18:29:00Z UTC
Last seen:
2026-01-10T12:48:00Z UTC
Hits:
~10
Detections:
HEUR:Backdoor.Linux.Mirai.h HEUR:Backdoor.Linux.Mirai.cw HEUR:Backdoor.Linux.Mirai.b HEUR:Backdoor.Linux.Mirai.r
Status:
terminated
Behavior Graph:
Malware family:
Mirai
Verdict:
Malicious
Result
Threat name:
Gafgyt, Mirai
Detection:
malicious
Classification:
troj.evad
Score:
96 / 100
Signature
Drops files in suspicious directories
Executes the "crontab" command typically for achieving persistence
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Sample is packed with UPX
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
Yara detected Gafgyt
Yara detected Mirai
Behaviour
Behavior Graph:
Score:
100%
Verdict:
Malware
File Type:
ELF
Verdict:
Malicious
Threat:
Family.MIRAI
Threat name:
Linux.Backdoor.Mirai
Status:
Malicious
First seen:
2026-01-08 21:08:41 UTC
File Type:
ELF32 Little (Exe)
AV detection:
14 of 24 (58.33%)
Threat level:
5/5
Detection(s):
Suspicious file
Result
Malware family:
mirai
Score:
10/10
Tags:
family:mirai botnet:lzrd botnet defense_evasion discovery execution linux persistence privilege_escalation upx
Behaviour
Reads runtime system information
Writes file to tmp directory
Changes its process name
Reads system network configuration
Modifies Bash startup script
Creates/modifies Cron job
Creates/modifies environment variables
Enumerates active TCP sockets
Enumerates running processes
Modifies init.d
Modifies systemd
Writes file to system bin folder
Modifies Watchdog functionality
Mirai
Mirai family
Verdict:
Malicious
Tags:
Unix.Dropper.Mirai-7135858-0
YARA:
n/a
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.68
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: | 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: | 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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