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MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 c581115dadc5417494c41bdeb6fc65ebf33b62e21a6f6f101d03fd5f54882c97. 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 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: c581115dadc5417494c41bdeb6fc65ebf33b62e21a6f6f101d03fd5f54882c97
SHA3-384 hash: 0bf202db085525ff03961625a5428e00abbc2078e9a0cbcb9fbacaea2dec57b5454c015f0b5296f280a5a89ba309bd2a
SHA1 hash: a80fd7ba13192619c8613f11a7ae99b91fffce4a
MD5 hash: 90da445a83dd19ffaaff6ee4250f2960
humanhash: golf-fruit-fanta-tennessee
File name:putita.x86_64
Download: download sample
Signature Mirai
Create hunting rule
File size:60'676 bytes
First seen:2026-08-16 19:47:24 UTC
Last seen:2026-08-17 05:14:24 UTC
File type: elf
MIME type:application/x-sharedlib
ssdeep 1536:shfeEnwRBCdrXhjQstGKH9k65aTeGlsuNwi+nsCXVQpq58SE:shtwRBCdrGLKdk65a6GtNYzupq5I
TLSH T1CB5301A5317AC224D4359C327E6A8780EADF684E90871B070DF525DDFCB9E98B014BC6
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 UPX
File size (compressed) :60'676 bytes
File size (de-compressed) :124'808 bytes
Format:linux/amd64
Unpacked file: 8131e87819d8f29dc005eaad69b6c28a02a732b9bd6d5729cb44e03131bf3ef6

Intelligence

File Origin
# of uploads :
2
# of downloads :
67
Origin country :
DE DE
Vendor Threat Intelligence
Details
Link:
https://research.acce.ciphertechsolutions.com/results/e9251e36-2276-4d6d-8ef4-9fc1e03e68ab/
Result
Verdict:
Malware
Maliciousness:

Behaviour
Opens a port
Sets a written file as executable
Launching a process
Connection attempt
Runs as daemon
Receives data from a server
Sends data to a server
Changes the time when the file was created, accessed, or modified
Changes access rights for a written file
Creating a file
Creates or modifies symbolic links
Substitutes an application name
Writes files to system directory
Creates or modifies files in /cron to set up autorun
Creates or modifies files to set up autorun
Deleting of the original file
Creates or modifies symbolic links in /init.d to set up autorun
Creates or modifies files in /init.d to set up autorun
Verdict:
Unknown
Threat level:
  2.5/10
Confidence:
100%
Tags:
packed upx
Link:
https://www.filescan.io/uploads/6a8213d179b8023545d409a7/reports/f4a7a657-5201-44d9-8a8d-08e9f4869b97/overview
Verdict:
Malicious
File Type:
elf.64.le
First seen:
2026-08-16T17:24:00Z UTC
Last seen:
2026-08-16T20:02:00Z UTC
Hits:
~10
Link:
https://opentip.kaspersky.com/c581115dadc5417494c41bdeb6fc65ebf33b62e21a6f6f101d03fd5f54882c97/results?tab=lookup
Status:
terminated
Link:
https://sandbox.kunai.rocks/analysis/7b1e4823-4f84-4dae-a2d8-c6cb34cb9131
Behavior Graph:
Download SVG
%3 guuid=7309bfca-1d00-0000-018c-7fd94f080000 pid=2127 /usr/bin/sudo guuid=557e52cd-1d00-0000-018c-7fd950080000 pid=2128 /tmp/sample.bin delete-file mprotect-exec net write-config write-file guuid=7309bfca-1d00-0000-018c-7fd94f080000 pid=2127->guuid=557e52cd-1d00-0000-018c-7fd950080000 pid=2128 execve 8b0a01dc-0728-52c1-8024-c4ba7801b8d6 8.8.8.8:53 guuid=557e52cd-1d00-0000-018c-7fd950080000 pid=2128->8b0a01dc-0728-52c1-8024-c4ba7801b8d6 con guuid=e5f86ece-1d00-0000-018c-7fd951080000 pid=2129 /usr/bin/dash guuid=557e52cd-1d00-0000-018c-7fd950080000 pid=2128->guuid=e5f86ece-1d00-0000-018c-7fd951080000 pid=2129 execve guuid=e9cabfce-1d00-0000-018c-7fd952080000 pid=2130 /usr/bin/dash guuid=557e52cd-1d00-0000-018c-7fd950080000 pid=2128->guuid=e9cabfce-1d00-0000-018c-7fd952080000 pid=2130 execve guuid=af98fdd1-1d00-0000-018c-7fd958080000 pid=2136 /usr/bin/chattr zombie guuid=557e52cd-1d00-0000-018c-7fd950080000 pid=2128->guuid=af98fdd1-1d00-0000-018c-7fd958080000 pid=2136 execve guuid=dcea01d2-1d00-0000-018c-7fd959080000 pid=2137 /usr/bin/chattr zombie guuid=557e52cd-1d00-0000-018c-7fd950080000 pid=2128->guuid=dcea01d2-1d00-0000-018c-7fd959080000 pid=2137 execve guuid=e22f05d2-1d00-0000-018c-7fd95a080000 pid=2138 /usr/bin/chattr zombie guuid=557e52cd-1d00-0000-018c-7fd950080000 pid=2128->guuid=e22f05d2-1d00-0000-018c-7fd95a080000 pid=2138 execve guuid=e35b08d2-1d00-0000-018c-7fd95b080000 pid=2139 /usr/bin/busybox zombie guuid=557e52cd-1d00-0000-018c-7fd950080000 pid=2128->guuid=e35b08d2-1d00-0000-018c-7fd95b080000 pid=2139 execve guuid=402c0dd2-1d00-0000-018c-7fd95c080000 pid=2140 /usr/bin/busybox zombie guuid=557e52cd-1d00-0000-018c-7fd950080000 pid=2128->guuid=402c0dd2-1d00-0000-018c-7fd95c080000 pid=2140 execve guuid=009f10d2-1d00-0000-018c-7fd95d080000 pid=2141 /usr/bin/busybox zombie guuid=557e52cd-1d00-0000-018c-7fd950080000 pid=2128->guuid=009f10d2-1d00-0000-018c-7fd95d080000 pid=2141 execve guuid=46f213d2-1d00-0000-018c-7fd95e080000 pid=2142 /tmp/sample.bin net send-data zombie guuid=557e52cd-1d00-0000-018c-7fd950080000 pid=2128->guuid=46f213d2-1d00-0000-018c-7fd95e080000 pid=2142 clone guuid=afc4ecce-1d00-0000-018c-7fd953080000 pid=2131 /usr/bin/dash guuid=e9cabfce-1d00-0000-018c-7fd952080000 pid=2130->guuid=afc4ecce-1d00-0000-018c-7fd953080000 pid=2131 clone guuid=9d35f3ce-1d00-0000-018c-7fd954080000 pid=2132 /usr/bin/dash guuid=e9cabfce-1d00-0000-018c-7fd952080000 pid=2130->guuid=9d35f3ce-1d00-0000-018c-7fd954080000 pid=2132 clone guuid=46f213d2-1d00-0000-018c-7fd95e080000 pid=2142->8b0a01dc-0728-52c1-8024-c4ba7801b8d6 con 706d8119-5804-563f-93fb-1ad04086f3d8 64.89.163.215:666 guuid=46f213d2-1d00-0000-018c-7fd95e080000 pid=2142->706d8119-5804-563f-93fb-1ad04086f3d8 send: 90B guuid=1f2589d2-1d00-0000-018c-7fd95f080000 pid=2143 /tmp/sample.bin guuid=46f213d2-1d00-0000-018c-7fd95e080000 pid=2142->guuid=1f2589d2-1d00-0000-018c-7fd95f080000 pid=2143 clone guuid=1f058fd2-1d00-0000-018c-7fd960080000 pid=2144 /tmp/sample.bin guuid=46f213d2-1d00-0000-018c-7fd95e080000 pid=2142->guuid=1f058fd2-1d00-0000-018c-7fd960080000 pid=2144 clone guuid=b7689bd2-1d00-0000-018c-7fd961080000 pid=2145 /tmp/sample.bin guuid=46f213d2-1d00-0000-018c-7fd95e080000 pid=2142->guuid=b7689bd2-1d00-0000-018c-7fd961080000 pid=2145 clone
Verdict:
Suspicious
Link:
https://analyze.intezer.com/analyses/5e9f4973-3da9-4c69-8a6e-4b10bd868f3d
Result
Threat name:
n/a
Detection:
malicious
Classification:
spre.troj.evad
Score:
88 / 100
Link:
https://www.joesandbox.com/analysis/1958688
Signature
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 is packed with UPX
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
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1958688 Sample: putita.x86_64.elf Startdate: 16/08/2026 Architecture: LINUX Score: 88 53 15.235.228.140, 80 OVHFR Singapore 2->53 55 64.89.163.215, 36078, 666 NETIFACE-TORONTO-NetifaceAmericaIncUS Germany 2->55 59 Multi AV Scanner detection for submitted file 2->59 61 Sample is packed with UPX 2->61 9 putita.x86_64.elf 2->9         started        signatures3 process4 file5 45 /usr/lib/kworker-helper, ELF 9->45 dropped 47 /root/.bashrc, ASCII 9->47 dropped 49 /etc/systemd/system/kworker-helper.service, ASCII 9->49 dropped 51 3 other malicious files 9->51 dropped 69 Sample tries to set files in /etc globally writable 9->69 71 Sample tries to persist itself using /etc/profile 9->71 73 Drops files in suspicious directories 9->73 75 3 other signatures 9->75 13 putita.x86_64.elf sh 9->13         started        15 putita.x86_64.elf sh 9->15         started        17 putita.x86_64.elf chattr 9->17         started        20 6 other processes 9->20 signatures6 process7 signatures8 22 sh crontab 13->22         started        26 sh 13->26         started        28 sh crontab 15->28         started        57 Protects files from modification 17->57 30 putita.x86_64.elf 20->30         started        32 putita.x86_64.elf 20->32         started        34 putita.x86_64.elf 20->34         started        36 putita.x86_64.elf 20->36         started        process9 file10 43 /var/spool/cron/crontabs/tmp.C42e6v, ASCII 22->43 dropped 65 Sample tries to persist itself using cron 22->65 67 Executes the "crontab" command typically for achieving persistence 22->67 38 sh crontab 26->38         started        41 putita.x86_64.elf 30->41         started        signatures11 process12 signatures13 63 Executes the "crontab" command typically for achieving persistence 38->63
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/c581115dadc5417494c41bdeb6fc65ebf33b62e21a6f6f101d03fd5f54882c97
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/c581115dadc5417494c41bdeb6fc65ebf33b62e21a6f6f101d03fd5f54882c97/
Threat name:
Linux.Trojan.Multiverze
Create hunting rule
Status:
Malicious
First seen:
2026-08-16 19:48:38 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=ywarcxnnyvaxjfgedppln7df5pztwyxcdjxw6ea5ap6v6veifslq._file
Result
Malware family:
n/a
Score:
  7/10
Tags:
defense_evasion discovery execution linux persistence privilege_escalation upx
Link:
https://tria.ge/reports/260816-yhr23awtey/
Behaviour
Reads runtime system information
Changes its process name
Modifies Bash startup script
UPX packed file
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
Link:
https://yomi.yoroi.company/submissions/c581115dadc5417494c41bdeb6fc65ebf33b62e21a6f6f101d03fd5f54882c97

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:SUSP_ELF_LNX_UPX_Compressed_File
Create hunting rule
Author:Florian Roth (Nextron Systems)
Description:Detects a suspicious ELF binary with UPX compression
Reference:Internal Research
Rule name:upx_packed_elf_v1
Create hunting rule
Author:RandomMalware

File information

The table below shows additional information about this malware sample such as delivery method and external references.

Web download

Mirai

elf c581115dadc5417494c41bdeb6fc65ebf33b62e21a6f6f101d03fd5f54882c97

(this sample)

Mirai

elf 8131e87819d8f29dc005eaad69b6c28a02a732b9bd6d5729cb44e03131bf3ef6

  
URLhaus
https://urlhaus.abuse.ch/url/3892133/
  
Delivery method
Distributed via web download
  
Dropping
SHA256 8131e87819d8f29dc005eaad69b6c28a02a732b9bd6d5729cb44e03131bf3ef6
  
Dropping
MD5 9cca6ea2975cfd96ca6e4e1a2940aff5

Comments