MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a81cc73d764986c262ec9b66cfca9b54165a9211c9dbe7b41f449ee4346f212c. 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


Intelligence 8 IOCs YARA 1 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: a81cc73d764986c262ec9b66cfca9b54165a9211c9dbe7b41f449ee4346f212c
SHA3-384 hash: 817df6223b5b326e3b6f435f8cea36c144fec917154c70be8785ff06e84c27fe8a3cabf788717e9bd9ba65af0d9137da
SHA1 hash: 3b311b9bec340d50cadfdb194cb7303ef9153a18
MD5 hash: 0a49cdf1f563217d5cf43ee44e36a2b8
humanhash: double-river-missouri-lemon
File name:zersh4
Download: download sample
Signature Mirai
Create hunting rule
File size:62'664 bytes
First seen:2026-01-12 01:29:36 UTC
Last seen:Never
File type: elf
MIME type:application/x-executable
ssdeep 768:NA9kLVTP4TX0uwpjF2trAbdo/Z3WEiMinH/qQUIjZ1rRa1WcnoT7xC98T:N/hP442w83iM8H/x3R41WJ3xC98T
TLSH T172536D128C645D98F06A7D3020388AFB9753B549AD1BACFB7D478225001F69CF5E7BB8
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

Intelligence

File Origin
# of uploads :
1
# of downloads :
139
Origin country :
DE DE
Vendor Threat Intelligence
No detections
Detection(s):
Sanesecurity.Malware.31075.LX.BOT.UNOFFICIAL
Create hunting rule

Unix.Trojan.Mirai-9885259-0
Create hunting rule

Unix.Trojan.Gafgyt-6735924-0
Create hunting rule

Verdict:
Unknown
Threat level:
  0/10
Confidence:
100%
Link:
https://www.filescan.io/uploads/69644ec407ef5fa68e84b5c8/reports/bae437b2-e132-43f4-bcec-ee21ae9cfd02/overview
Verdict:
Malicious
File Type:
elf.32.le
First seen:
2026-01-12T00:08:00Z UTC
Last seen:
2026-01-12T00:47:00Z UTC
Hits:
~10
Link:
https://opentip.kaspersky.com/a81cc73d764986c262ec9b66cfca9b54165a9211c9dbe7b41f449ee4346f212c/results?tab=lookup
Status:
terminated
Link:
https://sandbox.kunai.rocks/analysis/f4feb3cd-fff8-42bb-88e7-a58eb889ef95
Behavior Graph:
Download SVG
%3 guuid=9af09d0b-1c00-0000-fb54-5d4d850b0000 pid=2949 /usr/bin/sudo guuid=b15fb20d-1c00-0000-fb54-5d4d8c0b0000 pid=2956 /tmp/sample.bin guuid=9af09d0b-1c00-0000-fb54-5d4d850b0000 pid=2949->guuid=b15fb20d-1c00-0000-fb54-5d4d8c0b0000 pid=2956 execve
Verdict:
Unknown
Link:
https://analyze.intezer.com/analyses/d3cbe01f-56d9-4a35-bd7c-d015af99b5e9
Result
Threat name:
n/a
Detection:
malicious
Classification:
n/a
Score:
48 / 100
Link:
https://www.joesandbox.com/analysis/1848685
Signature
Multi AV Scanner detection for submitted file
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1848685 Sample: zersh4.elf Startdate: 12/01/2026 Architecture: LINUX Score: 48 18 109.202.202.202, 80 INIT7CH Switzerland 2->18 20 167.99.246.88, 39691, 51844 DIGITALOCEAN-ASNUS United States 2->20 22 3 other IPs or domains 2->22 24 Multi AV Scanner detection for submitted file 2->24 8 zersh4.elf 2->8         started        10 dash rm 2->10         started        12 dash rm 2->12         started        signatures3 process4 process5 14 zersh4.elf 8->14         started        process6 16 zersh4.elf 14->16         started       
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/a81cc73d764986c262ec9b66cfca9b54165a9211c9dbe7b41f449ee4346f212c
Detection:
mirai
Create hunting rule
Link:
https://mwdb.cert.pl/sample/a81cc73d764986c262ec9b66cfca9b54165a9211c9dbe7b41f449ee4346f212c/
Threat name:
Linux.Worm.Mirai
Create hunting rule
Status:
Malicious
First seen:
2026-01-12 01:30:43 UTC
File Type:
ELF32 Little (Exe)
AV detection:
11 of 23 (47.83%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=vaomoplwjgdmeyxmtntm7su3kqlfveqrzhn6pna7ispoindpeewa._file
Result
Malware family:
n/a
Score:
  1/10
Tags:
linux
Link:
https://tria.ge/reports/260112-bw6q2shx5g/
Verdict:
Malicious
Tags:
Unix.Trojan.Mirai-9885259-0
YARA:
n/a
Link:
https://app.threat.zone/submission/5225a5bf-3cc4-44fa-936d-4420b91bb6d5
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/a81cc73d764986c262ec9b66cfca9b54165a9211c9dbe7b41f449ee4346f212c

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: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

Mirai

elf a81cc73d764986c262ec9b66cfca9b54165a9211c9dbe7b41f449ee4346f212c

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/3739194/
  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/3739404/

Comments