MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b91e8bad35786f3033407ca9c673d693900928b008d8a0037d4e20571285a055. 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


Threat unknown


Vendor detections: 5


Intelligence 5 IOCs YARA 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: b91e8bad35786f3033407ca9c673d693900928b008d8a0037d4e20571285a055
SHA3-384 hash: b60f43fecc26106aaa672d9aa75122028bd9ce66ce3975757251439f6ce920255d6a0e4d74e2d2f441639eeea2354b11
SHA1 hash: c4b99c9c276aa033b22b272da753c2c2ad276fe5
MD5 hash: 92607dc640817c603ec000ed1ee8294d
humanhash: moon-green-king-chicken
File name:vsxv
Download: download sample
File size:101'364 bytes
First seen:2026-07-22 15:00:49 UTC
Last seen:Never
File type: elf
MIME type:application/x-executable
ssdeep 1536:wW0A0XxJLY3XMbmOnLXEH60wAzFHsupusglFpApU20S0Q201PtagRZE:w2SLkkmOnLXz0HzFM3NQ
TLSH T124A3FA0ABF611DBBD81BDD3749E80B0638CCA61771693B753534D828FA4A90B4AD3CB5
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

Intelligence

File Origin
# of uploads :
1
# of downloads :
93
Origin country :
DE DE
Vendor Threat Intelligence
No detections
Result
Verdict:
Malware
Maliciousness:

Behaviour
Manages services
Launching a process
Creating a file
Sends data to a server
Collects information on the RAM
Connection attempt
Receives data from a server
Kills processes
Sets a written file as executable
Runs as daemon
Deleting a recently created file
Collects information on the CPU
Deletes a system binary file
Writes symbolic links to system directory
Creates or modifies files in /cron to set up autorun
Creates or modifies files in /init.d to set up autorun
Verdict:
Unknown
Threat level:
  0/10
Confidence:
100%
Link:
https://www.filescan.io/uploads/6a60db3fab85e41d23dedde1/reports/8f86c057-e324-4556-b41d-ad9e0924798e/overview
Status:
terminated
Link:
https://sandbox.kunai.rocks/analysis/2fe34f56-94bd-4ec8-91ef-3ad3c4b18a25
Behavior Graph:
Download SVG
%3 guuid=2e361d64-1c00-0000-d2e2-218414060000 pid=1556 /usr/bin/sudo guuid=d4034167-1c00-0000-d2e2-21841b060000 pid=1563 /tmp/sample.bin guuid=2e361d64-1c00-0000-d2e2-218414060000 pid=1556->guuid=d4034167-1c00-0000-d2e2-21841b060000 pid=1563 execve
Verdict:
Unknown
Link:
https://analyze.intezer.com/analyses/a36e5b4b-5790-469f-9360-136d0060d00a
Result
Threat name:
Generic IoTBotnet
Create hunting rule
Detection:
malicious
Classification:
troj
Score:
68 / 100
Link:
https://www.joesandbox.com/analysis/1946649
Signature
Protects files from modification
Sample reads /proc/mounts (often used for finding a writable filesystem)
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 Generic IoTBotnet
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1946649 Sample: vsxv.elf Startdate: 22/07/2026 Architecture: LINUX Score: 68 43 5.231.70.61, 36120, 7213 DATAFORESTDE Germany 2->43 45 Yara detected Generic IoTBotnet 2->45 10 vsxv.elf 2->10         started        12 systemd snapd-env-generator 2->12         started        14 systemd snapd-env-generator 2->14         started        16 2 other processes 2->16 signatures3 process4 process5 18 vsxv.elf 10->18         started        process6 20 vsxv.elf 18->20         started        signatures7 47 Sample tries to persist itself using cron 20->47 49 Sample tries to persist itself using System V runlevels 20->49 23 vsxv.elf 20->23         started        27 vsxv.elf chattr 20->27         started        29 vsxv.elf chattr 20->29         started        31 28 other processes 20->31 process8 file9 37 /etc/rc.local, POSIX 23->37 dropped 39 /etc/crontab, ASCII 23->39 dropped 41 /etc/cron.d/crond, ASCII 23->41 dropped 51 Sample tries to set files in /etc globally writable 23->51 53 Sample reads /proc/mounts (often used for finding a writable filesystem) 23->53 55 Sample tries to persist itself using cron 23->55 57 Sample tries to persist itself using System V runlevels 23->57 33 vsxv.elf systemctl 23->33         started        35 vsxv.elf systemctl 23->35         started        59 Protects files from modification 27->59 signatures10 process11
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/b91e8bad35786f3033407ca9c673d693900928b008d8a0037d4e20571285a055
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/b91e8bad35786f3033407ca9c673d693900928b008d8a0037d4e20571285a055/
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=xepixljvpbxtam2apsu4m46wsoiaskfqbdmkaa35jyqfoeufubkq._file
Result
Malware family:
n/a
Score:
  6/10
Tags:
antivm discovery execution persistence privilege_escalation
Link:
https://tria.ge/reports/260722-sdyfdsgb55/
Behaviour
Reads runtime system information
Checks CPU configuration
Creates/modifies Cron job
Enumerates running processes
Modifies rc script
Modifies systemd
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Legit
Score:
0.00
Link:
https://yomi.yoroi.company/submissions/b91e8bad35786f3033407ca9c673d693900928b008d8a0037d4e20571285a055

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:TH_Generic_MassHunt_Linux_Malware_2026_CYFARE
Create hunting rule
Author:CYFARE
Description:Generic Linux malware mass-hunt rule - 2026
Reference:https://cyfare.net/
Rule name:unixredflags3
Create hunting rule
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

elf b91e8bad35786f3033407ca9c673d693900928b008d8a0037d4e20571285a055

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/3890155/
  
Delivery method
Distributed via web download

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