MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 bb61ff20bf46854ba1a14f5840d623bd22a09df7316f6c4bd86a55dd04f85f58. 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: 9
| SHA256 hash: | bb61ff20bf46854ba1a14f5840d623bd22a09df7316f6c4bd86a55dd04f85f58 |
|---|---|
| SHA3-384 hash: | 852a7eb350c80a2f8e6a94842dab0bd8bc8772229f951e329198ad9a5ead4a4e50268d3a93734f1c2c04db303a13304a |
| SHA1 hash: | a88e51d6dae88e76a601e0bc67a6da9a11a76c5e |
| MD5 hash: | 01f16797629288066ac530c8cbe02568 |
| humanhash: | delta-carbon-monkey-september |
| File name: | x86_64 |
| Download: | download sample |
| Signature | Mirai |
| File size: | 2'437'728 bytes |
| First seen: | 2026-04-01 22:56:28 UTC |
| Last seen: | Never |
| File type: | elf |
| MIME type: | application/x-executable |
| ssdeep | 49152:Z4dsfmbwyjoNYOhqdMaDQREx9XItpw1nvoZIt4z2jdDRFx6h8:A2dh2MQyC94tgnAe40dFMh8 |
| TLSH | T1BCB533F648A8036F69845BDC5BCA77D0867F8000AA5CF1C19C5978C75C34BEB6E0B72A |
| 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) : | 2'437'728 bytes |
|---|---|
| File size (de-compressed) : | 5'669'928 bytes |
| Format: | linux/amd64 |
| Unpacked file: | af5195e882ab3ab966730dd022119a4c5d996245f6fef56ee4ba458dd73da8ea |
Intelligence
File Origin
# of uploads :
1
# of downloads :
59
Origin country :
DEVendor Threat Intelligence
Gathering data
Result
Verdict:
Malware
Maliciousness:
Behaviour
Launching a process
Collects information on the CPU
Sets a written file as executable
Changes the time when the file was created, accessed, or modified
Opens a port
Creating a file
Locks files
Runs as daemon
Changes access rights for a written file
Manages services
Creating a process from a recently created file
Kills processes
Creating a file in the %temp% directory
Writes files to system directory
Substitutes an application name
Creates or modifies files in /cron to set up autorun
Creates or modifies files in /init.d to set up autorun
Creates or modifies files to set up autorun
Creates or modifies symbolic links in /init.d to set up autorun
Verdict:
Likely Malicious
Threat level:
7.5/10
Confidence:
100%
Tags:
hajime packed upx
Verdict:
Malicious
Uses P2P?:
false
Uses anti-vm?:
false
Architecture:
x86
Packer:
UPX
Botnet:
unknown
Number of open files:
8
Number of processes launched:
3
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
Result
Gathering data
Status:
terminated
Behavior Graph:
Verdict:
Unknown
Score:
100%
Verdict:
Malware
File Type:
ELF
Threat name:
Linux.Exploit.CVE-2021-36260
Status:
Malicious
First seen:
2026-04-01 22:57:22 UTC
File Type:
ELF64 Little (Exe)
AV detection:
10 of 36 (27.78%)
Threat level:
5/5
Detection(s):
Suspicious file
Result
Malware family:
n/a
Score:
6/10
Tags:
defense_evasion discovery execution linux persistence privilege_escalation upx
Behaviour
Reads runtime system information
Writes file to shm directory
Writes file to tmp directory
Changes its process name
Reads CPU attributes
Modifies Bash startup script
UPX packed file
Creates/modifies Cron job
Creates/modifies environment variables
Modifies init.d
Modifies rc script
Modifies systemd
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
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: | SHA512_Constants |
|---|---|
| Author: | phoul (@phoul) |
| Description: | Look for SHA384/SHA512 constants |
| 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: | upxHook |
|---|---|
| Author: | @r3dbU7z |
| Description: | Detect artifacts from 'upxHook' - modification of UPX packer |
| Reference: | https://bazaar.abuse.ch/sample/6352be8aa5d8063673aa428c3807228c40505004320232a23d99ebd9ef48478a/ |
| 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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