MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a12922f8f8906ee5ebc6f0612236307e24a2a53a5f26f34b23e2ddab998fc304. 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: 7


Intelligence 7 IOCs YARA 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: a12922f8f8906ee5ebc6f0612236307e24a2a53a5f26f34b23e2ddab998fc304
SHA3-384 hash: 17d7090c454dfb9de544a4309b1b7128241cf5ce5276689bf32faa47db80bf1a56a917745c072a7505325b6af6e5cc99
SHA1 hash: a37b62c043ca70f9c9b1d10c460917878c039dfa
MD5 hash: 3ff2e67d41a53a94a50b7163d9c5875d
humanhash: pluto-undress-table-iowa
File name:putita.x86_64
Download: download sample
Signature Mirai
Create hunting rule
File size:128'888 bytes
First seen:2026-07-17 01:07:47 UTC
Last seen:Never
File type: elf
MIME type:application/x-sharedlib
ssdeep 1536:bLvXvtUQsrSA4YaQ1piFKpGPZixR3PsBawxelU8Hht5RQC/6xp5U+zh5G44porzF:bL92rSA4V7mGxecERex7zh5G4FZ
TLSH T1CFC32A06746158FDC15BC434C77FE937EA31B46D13243AAF2784AA712E22E751F0AB92
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


Avatar
abuse_ch
UPX decompressed file, sourced from SHA256 f8956e30821ef8a73215795e607abbe14b6d3efa17f9ba47fcdafc44b1f20e91
File size (compressed) :59'676 bytes
File size (de-compressed) :128'888 bytes
Format:linux/amd64
Packed file: f8956e30821ef8a73215795e607abbe14b6d3efa17f9ba47fcdafc44b1f20e91

Intelligence

File Origin
# of uploads :
1
# of downloads :
73
Origin country :
NL NL
Vendor Threat Intelligence
No detections
Detection(s):
SecuriteInfo.com.ELF.Mirai-ALC.68637724.UNOFFICIAL
Create hunting rule

Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
expand gcc lolbin mirai
Link:
https://www.filescan.io/uploads/6a59808f1e605c22063e1ac7/reports/f743ed86-9bb5-4a4c-8f2f-761b81b56d82/overview
Verdict:
Malicious
File Type:
elf.64.le
First seen:
2026-07-16T23:09:00Z UTC
Last seen:
2026-07-17T00:07:00Z UTC
Hits:
~10
Link:
https://opentip.kaspersky.com/a12922f8f8906ee5ebc6f0612236307e24a2a53a5f26f34b23e2ddab998fc304/results?tab=lookup
Status:
terminated
Link:
https://sandbox.kunai.rocks/analysis/42fad168-9f3a-4cd1-ad33-9e9cbbf58013
Behavior Graph:
Download SVG
%3 guuid=97433829-1f00-0000-991e-e8f740140000 pid=5184 /usr/bin/sudo guuid=b84aa62c-1f00-0000-991e-e8f741140000 pid=5185 /tmp/sample.bin delete-file net write-config write-file guuid=97433829-1f00-0000-991e-e8f740140000 pid=5184->guuid=b84aa62c-1f00-0000-991e-e8f741140000 pid=5185 execve 8b0a01dc-0728-52c1-8024-c4ba7801b8d6 8.8.8.8:53 guuid=b84aa62c-1f00-0000-991e-e8f741140000 pid=5185->8b0a01dc-0728-52c1-8024-c4ba7801b8d6 con guuid=3b11922d-1f00-0000-991e-e8f742140000 pid=5186 /usr/bin/dash guuid=b84aa62c-1f00-0000-991e-e8f741140000 pid=5185->guuid=3b11922d-1f00-0000-991e-e8f742140000 pid=5186 execve guuid=cfde272e-1f00-0000-991e-e8f743140000 pid=5187 /usr/bin/dash guuid=b84aa62c-1f00-0000-991e-e8f741140000 pid=5185->guuid=cfde272e-1f00-0000-991e-e8f743140000 pid=5187 execve guuid=4f63652f-1f00-0000-991e-e8f746140000 pid=5190 /usr/bin/chattr zombie guuid=b84aa62c-1f00-0000-991e-e8f741140000 pid=5185->guuid=4f63652f-1f00-0000-991e-e8f746140000 pid=5190 execve guuid=32f86d2f-1f00-0000-991e-e8f747140000 pid=5191 /usr/bin/chattr zombie guuid=b84aa62c-1f00-0000-991e-e8f741140000 pid=5185->guuid=32f86d2f-1f00-0000-991e-e8f747140000 pid=5191 execve guuid=6686792f-1f00-0000-991e-e8f748140000 pid=5192 /usr/bin/chattr zombie guuid=b84aa62c-1f00-0000-991e-e8f741140000 pid=5185->guuid=6686792f-1f00-0000-991e-e8f748140000 pid=5192 execve guuid=47e0802f-1f00-0000-991e-e8f749140000 pid=5193 /usr/bin/busybox zombie guuid=b84aa62c-1f00-0000-991e-e8f741140000 pid=5185->guuid=47e0802f-1f00-0000-991e-e8f749140000 pid=5193 execve guuid=07f6862f-1f00-0000-991e-e8f74a140000 pid=5194 /usr/bin/busybox zombie guuid=b84aa62c-1f00-0000-991e-e8f741140000 pid=5185->guuid=07f6862f-1f00-0000-991e-e8f74a140000 pid=5194 execve guuid=b9f48c2f-1f00-0000-991e-e8f74b140000 pid=5195 /usr/bin/busybox zombie guuid=b84aa62c-1f00-0000-991e-e8f741140000 pid=5185->guuid=b9f48c2f-1f00-0000-991e-e8f74b140000 pid=5195 execve guuid=ca6a962f-1f00-0000-991e-e8f74c140000 pid=5196 /tmp/sample.bin net send-data zombie guuid=b84aa62c-1f00-0000-991e-e8f741140000 pid=5185->guuid=ca6a962f-1f00-0000-991e-e8f74c140000 pid=5196 clone guuid=bac57b2e-1f00-0000-991e-e8f744140000 pid=5188 /usr/bin/dash guuid=cfde272e-1f00-0000-991e-e8f743140000 pid=5187->guuid=bac57b2e-1f00-0000-991e-e8f744140000 pid=5188 clone guuid=5360952e-1f00-0000-991e-e8f745140000 pid=5189 /usr/bin/dash guuid=cfde272e-1f00-0000-991e-e8f743140000 pid=5187->guuid=5360952e-1f00-0000-991e-e8f745140000 pid=5189 clone guuid=ca6a962f-1f00-0000-991e-e8f74c140000 pid=5196->8b0a01dc-0728-52c1-8024-c4ba7801b8d6 con 706d8119-5804-563f-93fb-1ad04086f3d8 64.89.163.215:666 guuid=ca6a962f-1f00-0000-991e-e8f74c140000 pid=5196->706d8119-5804-563f-93fb-1ad04086f3d8 send: 904B guuid=78438b30-1f00-0000-991e-e8f74d140000 pid=5197 /tmp/sample.bin guuid=ca6a962f-1f00-0000-991e-e8f74c140000 pid=5196->guuid=78438b30-1f00-0000-991e-e8f74d140000 pid=5197 clone guuid=31738f30-1f00-0000-991e-e8f74e140000 pid=5198 /tmp/sample.bin guuid=ca6a962f-1f00-0000-991e-e8f74c140000 pid=5196->guuid=31738f30-1f00-0000-991e-e8f74e140000 pid=5198 clone guuid=4a0d9330-1f00-0000-991e-e8f74f140000 pid=5199 /tmp/sample.bin guuid=ca6a962f-1f00-0000-991e-e8f74c140000 pid=5196->guuid=4a0d9330-1f00-0000-991e-e8f74f140000 pid=5199 clone
Gathering data
Result
Threat name:
n/a
Detection:
malicious
Classification:
spre.troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1943945
Signature
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Drops files in suspicious directories
Executes the "crontab" command typically for achieving persistence
Modifies the '.bashrc' or '.bash_profile' file typically for persisting actions
Multi AV Scanner detection for submitted file
Protects files from modification
Sample deletes itself
Sample tries to persist itself using /etc/profile
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
Suricata IDS alerts for network traffic
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1943945 Sample: putita.x86_64.elf Startdate: 17/07/2026 Architecture: LINUX Score: 100 57 64.89.163.215, 60664, 60666, 60668 NETIFACE-TORONTO-NetifaceAmericaIncUS Germany 2->57 59 109.202.202.202, 80 INIT7CH Switzerland 2->59 61 3 other IPs or domains 2->61 63 Suricata IDS alerts for network traffic 2->63 65 Antivirus detection for dropped file 2->65 67 Antivirus / Scanner detection for submitted sample 2->67 69 Multi AV Scanner detection for submitted file 2->69 9 putita.x86_64.elf 2->9         started        13 dash rm 2->13         started        15 dash rm 2->15         started        signatures3 process4 file5 47 /usr/lib/kworker-helper, ELF 9->47 dropped 49 /root/.bashrc, ASCII 9->49 dropped 51 /etc/systemd/system/kworker-helper.service, ASCII 9->51 dropped 53 3 other malicious files 9->53 dropped 73 Sample tries to set files in /etc globally writable 9->73 75 Sample tries to persist itself using /etc/profile 9->75 77 Drops files in suspicious directories 9->77 79 3 other signatures 9->79 17 putita.x86_64.elf sh 9->17         started        19 putita.x86_64.elf sh 9->19         started        21 putita.x86_64.elf chattr 9->21         started        24 6 other processes 9->24 signatures6 process7 signatures8 26 sh crontab 17->26         started        30 sh 17->30         started        32 sh crontab 19->32         started        71 Protects files from modification 21->71 34 putita.x86_64.elf 24->34         started        36 putita.x86_64.elf 24->36         started        38 putita.x86_64.elf 24->38         started        40 putita.x86_64.elf 24->40         started        process9 file10 55 /var/spool/cron/crontabs/tmp.2cCvX7, ASCII 26->55 dropped 83 Sample tries to persist itself using cron 26->83 85 Executes the "crontab" command typically for achieving persistence 26->85 42 sh crontab 30->42         started        45 putita.x86_64.elf 34->45         started        signatures11 process12 signatures13 81 Executes the "crontab" command typically for achieving persistence 42->81
Score:
98%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/a12922f8f8906ee5ebc6f0612236307e24a2a53a5f26f34b23e2ddab998fc304
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/a12922f8f8906ee5ebc6f0612236307e24a2a53a5f26f34b23e2ddab998fc304/
Threat name:
Linux.Worm.Mirai
Create hunting rule
Status:
Malicious
First seen:
2026-07-17 01:08:32 UTC
File Type:
ELF64 Little (SO)
AV detection:
12 of 24 (50.00%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=ueusf6hysbxol26g6bqsenrqpyskfjj2l4tpgszd4lo2xgmpymca._file
Result
Malware family:
n/a
Score:
  9/10
Tags:
defense_evasion discovery execution linux persistence privilege_escalation
Link:
https://tria.ge/reports/260717-bhgvrscv5t/
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
Creates a large amount of network flows
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/a12922f8f8906ee5ebc6f0612236307e24a2a53a5f26f34b23e2ddab998fc304

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
Create hunting rule
Author:4r4
Description:Hunts for ELF files with persistence and download capabilities
Rule name:ELF_Mirai
Create hunting rule
Author:NDA0E
Description:Detects multiple Mirai variants
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 f8956e30821ef8a73215795e607abbe14b6d3efa17f9ba47fcdafc44b1f20e91

Mirai

elf a12922f8f8906ee5ebc6f0612236307e24a2a53a5f26f34b23e2ddab998fc304

(this sample)

  
Dropped by
SHA256 f8956e30821ef8a73215795e607abbe14b6d3efa17f9ba47fcdafc44b1f20e91
  
URLhaus
https://urlhaus.abuse.ch/url/3885289/
  
Delivery method
Distributed via web download
  
Dropped by
MD5 da92e64fcd280f8c65a38ab9e611db29

Comments