MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 b5399be2be15939b9cd5a84b48d40ed1338b30c6a146f987c3f1b6daeffce0d1. 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: 8
| SHA256 hash: | b5399be2be15939b9cd5a84b48d40ed1338b30c6a146f987c3f1b6daeffce0d1 |
|---|---|
| SHA3-384 hash: | d0ade3212e706defda575e6fb0d4a9481ff0d93d308cf77382d895cbd03489d0a6254cc62eeb1636b8fa4fa3b6bfc87b |
| SHA1 hash: | 495ceb7b669020a49f3213e5f911632195549d51 |
| MD5 hash: | 63822a299a93885cd41c374d1b9dd217 |
| humanhash: | green-utah-sweet-london |
| File name: | putita.x86_64 |
| Download: | download sample |
| Signature | Mirai |
| File size: | 128'888 bytes |
| First seen: | 2026-07-19 13:02:44 UTC |
| Last seen: | Never |
| File type: | elf |
| MIME type: | application/x-sharedlib |
| ssdeep | 1536:kNmQAEUxS4zJ0Ln8wigyiGPZPxRrdMAsVv6E8CkjRHC/hsvvQLz7HG44Nor4X:kNmP3o4zJ0L809GxbsVuws3s7HG4Zu |
| TLSH | T1B7C33B0674A154FCC16BC434C76FE937EA31B45D13343AAF6784AA712E22E751F0AB92 |
| 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-dec |
abuse_ch
UPX decompressed file, sourced from SHA256 5acd598a6b8e3d6f5346dccf232b4c1aa5d542cf5818e7f6c29bff1618922855UPX unpacked
This file is the unpacked version of a file that has been packed with UPX. Below is furhter information about the parent (compressed) file.
| File size (compressed) : | 59'528 bytes |
|---|---|
| File size (de-compressed) : | 128'888 bytes |
| Format: | linux/amd64 |
| Packed file: | 5acd598a6b8e3d6f5346dccf232b4c1aa5d542cf5818e7f6c29bff1618922855 |
Intelligence
File Origin
# of uploads :
1
# of downloads :
80
Origin country :
NLVendor Threat Intelligence
No detections
Detection(s):
Result
Verdict:
Malware
Maliciousness:
Behaviour
Launching a process
Creates or modifies symbolic links
Creating a file
Sends data to a server
Connection attempt
Receives data from a server
Sets a written file as executable
Changes access rights for a written file
Changes the time when the file was created, accessed, or modified
Runs as daemon
Opens a port
Writes files to system directory
Creates or modifies files in /cron to set up autorun
Substitutes an application name
Deleting of the original file
Creates or modifies files in /init.d to set up autorun
Creates or modifies symbolic links in /init.d to set up autorun
Creates or modifies files to set up autorun
Verdict:
Likely Malicious
Threat level:
7.5/10
Confidence:
100%
Tags:
expand gcc lolbin mirai
Verdict:
Malicious
Uses P2P?:
false
Uses anti-vm?:
false
Architecture:
x86
Packer:
not packed
Botnet:
unknown
Number of open files:
13
Number of processes launched:
6
Processes remaning?
true
Remote TCP ports scanned:
not identified
Full report:
Behaviour
Persistence
Process Renaming
Botnet C2s
TCP botnet C2(s):
not identified
UDP botnet C2(s):
not identified
Verdict:
Malicious
File Type:
elf.64.le
First seen:
2026-07-19T10:12:00Z UTC
Last seen:
2026-07-21T06:39:00Z UTC
Hits:
~10
Detections:
HEUR:Trojan.Linux.Agent.vn
Status:
terminated
Behavior Graph:
Verdict:
Suspicious
Score:
99%
Verdict:
Malware
File Type:
ELF
Threat name:
Linux.Worm.Mirai
Status:
Malicious
First seen:
2026-07-19 13:03:36 UTC
File Type:
ELF64 Little (SO)
AV detection:
12 of 24 (50.00%)
Threat level:
5/5
Detection(s):
Suspicious file
Result
Malware family:
n/a
Score:
7/10
Tags:
defense_evasion execution linux persistence privilege_escalation
Behaviour
Changes its process name
Modifies Bash startup script
Creates/modifies Cron job
Creates/modifies environment variables
Modifies init.d
Modifies rc script
Modifies systemd
Deletes itself
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Legit
Score:
0.00
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_Persistence_Hunt |
|---|---|
| Author: | 4r4 |
| Description: | Hunts for ELF files with persistence and download capabilities |
| Rule name: | ELF_Mirai |
|---|---|
| Author: | NDA0E |
| Description: | Detects multiple Mirai variants |
| Rule name: | unixredflags3 |
|---|---|
| Author: | Tim Brown @timb_machine |
| Description: | Hunts for UNIX red flags |
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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